CN104111095A - Fuel consumption analysis method and system based on automobile traveling state - Google Patents

Abstract

The invention relates to a fuel consumption analysis method and system based on an automobile traveling state. The automobile traveling state is determined through an acceleration sensor set, a gravity sensor set and a geomagnetic sensor set, and then the fuel consumption of an automobile in the automobile traveling state is acquired according to the numerical value of air exhausted by the automobile. The fuel consumption of multiple automobiles in the normal traveling state at different speeds are collected according to automobile models, and the average fuel consumption of the automobiles of different models in the normal traveling state at different speeds is obtained. A server end obtains the excessively-consumed fuel consumption in the automobile traveling state according to the initial speed of the automobiles which enter in the operation state, the average fuel consumption of the automobiles of the models at the initial speed and the fuel consumption of the automobiles in the automobile traveling state. According to the fuel consumption analysis method and system based on the automobile traveling state, the automobile fuel consumption analysis method of big data is combined with the determined automobile traveling state to obtain the excessively fuel consumption in the automobile traveling state, and the fuel consumption of the automobile in the certain traveling state can be determined conveniently.

Description

Automobile fuel consumption analytical approach and system based on motoring condition

Technical field

The present invention relates to a kind of automobile fuel consumption analytical approach and system, relate in particular to a kind of automobile fuel consumption analytical approach and system based on motoring condition.

Background technology

Along with the development of rapidly universal, the automotive engineering of automobile, how managing better automobile becomes the problem that car owner and company are more and more concerned about.Along with the development of intelligent terminal technology, automobile information can be illustrated on intelligent terminal more easily,, by intelligent terminal, vehicle is managed better meanwhile.Prior art possesses car-mounted terminal, but the car-mounted terminal of prior art, owing to not having application of weight acceleration transducer and geomagnetic sensor well, therefore, it is judging aspect behaviors such as acceleration, brake more accurately.Particularly, determining in the method for car orientation, can not determine well automobilism attitude, then in conjunction with attitude, determine motoring condition.Prior art can only be determined instant oil consumption, but can not determine motoring condition and the oil consumption of automobile under certain transport condition.

Summary of the invention

The technical matters that the present invention solves is: build a kind of automobile fuel consumption analytical approach and system based on motoring condition, overcome the technical matters that prior art be can not determine motoring condition and the oil consumption of automobile under certain transport condition.

Technical scheme of the present invention is: build a kind of automobile fuel consumption analytical approach based on motoring condition, automobile fuel consumption analytic system comprises intelligent terminal, is arranged on the air detectors of probe vehicle exhaust on automobile exhaust pipe, server end, described intelligent terminal comprises sensor, described sensor comprises groups of acceleration sensors, gravity sensor group, geomagnetic sensor group, and the automobile fuel consumption analytical approach based on motoring condition comprises the steps:

Determine motoring condition: the accekeration of described groups of acceleration sensors sensing automobile respective direction, the accekeration of described gravity sensor group sensing automobile on gravity direction, the angle value of described geomagnetic sensor group sensing automobile and magnetic direction, described intelligent terminal arranges the threshold value of described pickup value, described intelligent terminal is set up rotation matrix according to data and the primary data thereof of described geomagnetic sensor group and described gravity sensor group, thereby obtain by transformation matrix the operation attitude that the vector angle of automobile in space obtains automobile, described intelligent terminal builds 3 d space coordinate system, according to the pickup value of described groups of acceleration sensors collection and the automobilism attitude obtained, determine the component of acceleration of automobile on three-dimensional system of coordinate is axial, then according to threshold value and the automobilism attitude of the described pickup value arranging, determine the transport condition of automobile,

Calculate oil consumption: described air detectors is sent to described intelligent terminal by the air numerical value of detection, described intelligent terminal is according to definite motoring condition, obtain the air numerical value of the automobile discharge that under this motoring condition, described air detectors is surveyed, the oil consumption that the air numerical evaluation of discharging according to automobile is obtained automobile under this motoring condition;

Obtain vehicle average fuel consumption: described server end gathers respectively many oil consumption under the normal transport condition of vehicle friction speed by vehicle model, obtain the average fuel consumption under the normal transport condition of different model vehicle friction speed;

Fuel consumption analysis: described intelligent terminal is by the automobile fuel consumption under vehicle model and this motoring condition of obtaining and upload to described server end, and the average fuel consumption under initial velocity when described server end enters this running status according to automobile, this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.

Further technical scheme of the present invention is: the transport condition of described automobile comprise anxious give it the gun, one or more during lane change is travelled, bring to a halt, descending gives it the gun.

Further technical scheme of the present invention is: described groups of acceleration sensors comprises the 3rd acceleration transducer of the first acceleration transducer of sensing automobile fore-and-aft direction, the second acceleration transducer of sensing vehicle right and left direction and sensing automobile above-below direction, and described the first acceleration transducer, the second acceleration transducer, the 3rd acceleration sensor axis are to quadrature.

Further technical scheme of the present invention is: also comprise that described intelligent terminal obtains the instantaneous velocity value of automobile.

Further technical scheme of the present invention is: also comprise mobile terminal, described server end sends to described mobile terminal by analysis result.

Technical scheme of the present invention is: build a kind of automobile fuel consumption analytic system based on motoring condition, comprise intelligent terminal, be arranged on the air detectors of probe vehicle exhaust on automobile exhaust pipe, server end, described intelligent terminal comprises sensor, described sensor comprises groups of acceleration sensors, gravity sensor group, geomagnetic sensor group, described intelligent terminal comprises wireless communication module, motoring condition determination module, oil consumption acquisition module, described server end comprises average fuel consumption acquisition module, Fuel consumption analysis module, the accekeration of described groups of acceleration sensors sensing automobile respective direction, the accekeration of described gravity sensor group sensing automobile on gravity direction, the angle value of described geomagnetic sensor group sensing automobile and magnetic direction, described intelligent terminal arranges the threshold value of described pickup value, described intelligent terminal is set up rotation matrix according to data and the primary data thereof of described geomagnetic sensor group and described gravity sensor group, thereby obtain by transformation matrix the operation attitude that the vector angle of automobile in space obtains automobile, described intelligent terminal builds 3 d space coordinate system, according to the pickup value of described groups of acceleration sensors collection and the automobilism attitude obtained, determine the component of acceleration of automobile on three-dimensional system of coordinate is axial, described motoring condition determination module is according to the threshold value of the described pickup value arranging and the transport condition that automobilism attitude determination module is determined automobile, described air detectors is sent to described intelligent terminal by the air numerical value of detection, the oil consumption that the air numerical evaluation that described oil consumption acquisition module is discharged according to automobile is obtained automobile under this motoring condition, described server end gathers respectively many oil consumption under the normal transport condition of vehicle friction speed by vehicle model, and described average fuel consumption acquisition module obtains the average fuel consumption under the normal transport condition of different model vehicle friction speed, described intelligent terminal is by the automobile fuel consumption under vehicle model and this motoring condition of obtaining and upload to described server end, and the average fuel consumption under initial velocity when described Fuel consumption analysis module enters this running status according to automobile, this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.

Further technical scheme of the present invention is: described groups of acceleration sensors comprises the 3rd acceleration transducer of the first acceleration transducer of sensing automobile fore-and-aft direction, the second acceleration transducer of sensing vehicle right and left direction and sensing automobile above-below direction, and described the first acceleration transducer, the second acceleration transducer, the 3rd acceleration sensor axis are to quadrature.

Further technical scheme of the present invention is: the groups of acceleration sensors that described acceleration transducer is axial quadrature.

Further technical scheme of the present invention is: also comprise mobile terminal, described server end sends to described mobile terminal by analysis result.

Further technical scheme of the present invention is: described intelligent terminal comprises output module, and described server end is sent to described intelligent terminal output by analysis result.

Technique effect of the present invention is: build a kind of automobile fuel consumption analytical approach and system based on motoring condition, pass through groups of acceleration sensors, gravity sensor group, geomagnetic sensor group is determined motoring condition, the oil consumption that the air numerical evaluation of then discharging according to automobile is obtained automobile under this motoring condition, by vehicle model, gather respectively many oil consumption under the normal transport condition of vehicle friction speed, obtain the average fuel consumption under the normal transport condition of different model vehicle friction speed, initial velocity when described server end enters this running status according to automobile, average fuel consumption under this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.The present invention in conjunction with definite motoring condition, obtains the oil consumption of unnecessary consumption under this motoring condition by the automobile fuel consumption analytical approach of large data, the oil consumption of convenient definite automobile under certain transport condition.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is sensor construction schematic diagram of the present invention.

Fig. 3 is the structural representation of intelligent terminal of the present invention and server end.

Embodiment

Below in conjunction with specific embodiment, technical solution of the present invention is further illustrated.

As shown in Figure 1 and Figure 2, the specific embodiment of the present invention is: build a kind of car steering behavior analysis method based on car-mounted terminal and server end, this car steering behavioural analysis system comprises intelligent terminal 1, is arranged on air detectors 5, the server end 2 of probe vehicle exhaust on automobile exhaust pipe, described intelligent terminal 1 comprises sensor 3, described sensor 3 comprises groups of acceleration sensors 31, gravity sensor group 33, geomagnetic sensor group 32, and described car steering behavior analysis method comprises the steps:

Determine motoring condition: the accekeration of described groups of acceleration sensors 31 sensing automobile respective direction, the accekeration of described gravity sensor group 33 sensing automobiles on gravity direction, the angle value of described geomagnetic sensor group 32 sensing automobiles and magnetic direction, described intelligent terminal 1 arranges the threshold value of described pickup value, described intelligent terminal 1 is set up rotation matrix according to data and the primary data thereof of described geomagnetic sensor group 32 and described gravity sensor group 33, thereby obtain by transformation matrix the operation attitude that the vector angle of automobile in space obtains automobile, described intelligent terminal 1 builds coordinate system, the pickup value gathering according to described groups of acceleration sensors 31 and the automobilism attitude of obtaining, determine the component of acceleration of automobile on three-dimensional system of coordinate is axial, then according to the threshold value of the described pickup value arranging, determine that automobile is at the transport condition of the definite automobile of operation judgement in space, the transport condition of described automobile comprise anxious give it the gun, one or more during lane change is travelled, bring to a halt, descending gives it the gun.

Calculate oil consumption: described air detectors 5 is sent to described intelligent terminal 1 by the air numerical value of detection, described intelligent terminal 1 is according to definite motoring condition, obtain the air numerical value of the automobile discharge that under this motoring condition, described air detectors 1 is surveyed, the oil consumption that the air numerical evaluation of discharging according to automobile is obtained automobile under this motoring condition;

Obtain vehicle average fuel consumption: described server end 2 gathers respectively many oil consumption under the normal transport condition of vehicle friction speed by vehicle model, obtain the average fuel consumption under the normal transport condition of different model vehicle friction speed;

Fuel consumption analysis: described intelligent terminal 1 is by the automobile fuel consumption under vehicle model and this motoring condition of obtaining and upload to described server end 2, and the average fuel consumption under initial velocity when described server end 2 enters this running status according to automobile, this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.

As shown in Figure 1 and Figure 2, specific embodiment of the invention process is: described groups of acceleration sensors 31 comprises a plurality of acceleration sensors, sensing automobile is at the accekeration of multiple directions, the accekeration of described gravity sensor group 33 sensing automobiles on gravity direction, the angle value of described geomagnetic sensor group 32 sensing automobiles and magnetic direction, is then sent to described intelligent terminal 1.Described intelligent terminal 1 is accekeration and the automobile of described geomagnetic sensor group 32 sensings and the angle value of magnetic direction on gravity direction according to the described gravity sensor group 33 receiving, described intelligent terminal 1 is set up rotation matrix according to data and the primary data thereof of described geomagnetic sensor group 32 and described gravity sensor group 33, thereby obtains by transformation matrix the operation attitude that the vector angle of automobile in space obtains automobile.Detailed process is as follows:

As shown in Figure 2, specific embodiment of the invention process is: with example, illustrate below: described geomagnetic sensor group 32 comprises the geomagnetic sensor of three axial quadratures, and described gravity sensor group 33 comprises the gravity sensor of three axial quadratures.Space coordinates O of system made XYZ, the Z axis of these space coordinates is perpendicular to surface level, in this coordinate system, geomagnetic sensor group 32 data of this definite position, space of take are its primary data C ₀(X ₀, Y ₀, Z ₀), the primary data G of gravity sensor group 33 ₀(0,0 ,-1).When equipment moving, described geomagnetic sensor group 32 is output as G ₁(r, s, t), the data of gravity sensor group 33 outputs are C ₁(X ₁, Y ₁, Z ₁), to the described geomagnetic sensor group 32 gathering and the real time data C of described gravity sensor group 33 ₁, G ₁with its primary data C ₀, G ₀be normalized, that is, according to data and the primary data thereof of described geomagnetic sensor group 32 and described gravity sensor group 33, set up rotation matrix, by transformation matrix, obtain described ultrasonic device at the vector angle in space.Because described gravity sensor group 33 is arranged on the second ultrasonic device 2, described gravity sensor group 33 around the angle of three coordinate axis rotation be ultrasonic device in space with the angle of three axles, if the angle that described gravity sensor group 33 is rotated around X-axis is α, the angle of rotating around Y-axis is β, the angle of rotating around Z axis is γ, and the angle of described gravity sensor group 33 and three axles is (α, β, γ).

Rotation matrix represents be any vector around coordinate system O coordinate transform during the rotation of XYZ axis, vector around coordinate system O the transformation matrix of tri-axis rotations of XYZ be:

$X\left(\mathrm{\α}\right)=\left[\begin{array}{ccc}1& 0& 0\\ 0& \cos \mathrm{\α}& \sin \mathrm{\α}\\ 0& -\sin \mathrm{\α}& \cos \mathrm{\α}\end{array}\right]$

$Y\left(\mathrm{\β}\right)=\left[\begin{array}{ccc}\cos \mathrm{\β}& 0& -\sin \\ 0& 1& 0\\ \sin \mathrm{\β}& 0& \cos \mathrm{\β}\end{array}\right]$

$Z\left(\mathrm{\γ}\right)=\left[\begin{array}{ccc}\cos \mathrm{\γ}& \sin \mathrm{\γ}& 0\\ -\sin \mathrm{\γ}& \cos \mathrm{\γ}& 0\\ 0& 0& 1\end{array}\right]$

Thus, to C ₀, C ₁, G ₀, G ₁set up simultaneous equations:

G ₀＝G ₁×X(α)Y(β)Z(γ) (1)

C ₀＝C ₁×X(α)Y(β)Z(γ) (2)

By matrixing and formula (1) (2), obtain:

$\left\{\begin{array}{c}\sin \mathrm{\β}=r\\ -\cos \mathrm{\β}\·\sin \mathrm{\α}=s\\ -\cos \mathrm{\β}\·\cos \mathrm{\α}=t\end{array}\right\}---\left(3\right)$

$\left\{\begin{array}{c}X\cos \mathrm{\β}\·\cos \mathrm{\γ}+Y\cos \mathrm{\β}\·\sin \mathrm{\γ}=X_1-Z\sin \mathrm{\β}\\ (X\sin \mathrm{\α}\·\sin \mathrm{\β}+Y\cos \mathrm{\α})\cos \mathrm{\γ}+(Y\sin \mathrm{\α}\·\sin \mathrm{\β}-X\cos \mathrm{\α})\sin \mathrm{\γ}=Y_1-Z\sin \mathrm{\α}\cos \mathrm{\β}\\ (X\cos \mathrm{\α}\·\sin \mathrm{\β}-Y\sin \mathrm{\α})\cos \mathrm{\γ}+(Y\cos \mathrm{\α}\·\sin \mathrm{\β}+X\sin \mathrm{\α})\sin \mathrm{\γ}=Z_1-Z\cos \mathrm{\α}\cos \mathrm{\β}\end{array}\right\}---\left(4\right)$

Because the space angle of vector angle (α, β, γ) and magnetic field sensor sets 58 is not corresponding one by one, for example angle vector is (30 °, 60 °, 100 °) and (150 °, 120 ° ,-80 °) space angle of expression, in order to eliminate the expression of this repetition, the span of restriction all angles :-180 °≤α <180 ° ,-90 °≤β <90 ° ,-180 °≤γ <180 °.

By (3), (4), obtain α, β, γ, the angle vector that is described gravity sensor group 33 and three axles is (α, β, γ), the angle vector that is to say automobile and three axles is (α, β, γ), thus, orientation and the angle of automobile have been determined, i.e. the operation attitude of automobile.

Described intelligent terminal 1 builds 3 d space coordinate system, and the pickup value gathering according to described groups of acceleration sensors 31 and the automobilism attitude of obtaining are determined the component of acceleration of automobile on three-dimensional system of coordinate is axial.Embodiment is: obtain automobilism attitude, the 3 d space coordinate being built by described intelligent terminal 1 is, determine that automobile is in the orientation in space, according to orientation and 3 d space coordinate axle, determine that car orientation is at the component of 3 d space coordinate axle, the pickup value gathering according to described groups of acceleration sensors 31 is determined the component of acceleration of automobile on three-dimensional system of coordinate is axial.Described intelligent terminal 1 arranges the threshold value of described pickup value, then according to the threshold value of the described pickup value arranging, determines that automobile is at the transport condition of the definite automobile of operation judgement in space.The state of described automobile comprise normally travel, one or more during urgency is given it the gun, lane change is travelled, bring to a halt, descending gives it the gun.

Calculate oil consumption: described air detectors 5 is sent to described intelligent terminal 1 by the air numerical value of detection, described intelligent terminal 1 is according to definite motoring condition, obtain the air numerical value of the automobile discharge that under this motoring condition, described air detectors 1 is surveyed, the oil consumption that the air numerical evaluation of discharging according to automobile is obtained automobile under this motoring condition.

Obtain vehicle average fuel consumption: described server end 2 gathers respectively many oil consumption under the normal transport condition of vehicle friction speed by vehicle model, obtain the average fuel consumption under the normal transport condition of different model vehicle friction speed.In the present invention, employ the large data capability that automobile terminal gathers, gather many oil consumption under the normal transport condition of vehicle friction speed, then, by the average fuel consumption under the normal transport condition of vehicle model statistics friction speed.

Fuel consumption analysis: described intelligent terminal 1 is by the automobile fuel consumption under vehicle model and this motoring condition of obtaining and upload to described server end 2, and the average fuel consumption under initial velocity when described server end 2 enters this running status according to automobile, this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.

As shown in Figure 2, the preferred embodiment of the present invention is: described groups of acceleration sensors 31 comprises the 3rd acceleration transducer 313 of the first acceleration transducer 311 of sensing automobile fore-and-aft direction, the second acceleration transducer 312 of sensing vehicle right and left direction and sensing automobile above-below direction, described the first acceleration transducer 311, the second acceleration transducer 312, the axial quadrature of the 3rd acceleration transducer 313.By described the first acceleration transducer 311, the second acceleration transducer 312, the 3rd acceleration transducer 313 of axial quadrature are set, simultaneously, described the first acceleration transducer 311, the second acceleration transducer 312, the 3rd acceleration transducer 313 be the accekeration of sensing space three-dimensional respectively, conveniently calculate, and obtain best effect with minimum acceleration transducer.If described the first acceleration transducer 311, the second acceleration transducer 312, the 3rd acceleration transducer 313 respectively sensing space three-dimensional overlap with described intelligent terminal 1 structure 3 d space coordinate system, the acceleration condition of convenient definite automobile.

As shown in Figure 1, the preferred embodiment of the present invention is: also comprise that described intelligent terminal 1 obtains the instantaneous velocity value of automobile.When determining motoring condition, by the instantaneous velocity value of automobile, can determine more exactly the transport condition of automobile.Such as starting is given it the gun, be not classified as anxious giving it the gun.

As shown in Figure 1, the preferred embodiment of the present invention is: also comprise mobile terminal 4, described server end 2 sends to described mobile terminal 4 by analysis result.By mobile terminal 4, setting up network with server end 2 is connected, can to server end 2, send request by mobile terminal 4, obtain status information or the analysis result of specifying or binding automobile, also can directly by server end 2, to mobile terminal 4, send vehicle condition information or analysis results.

As Fig. 1, Fig. 2, shown in Fig. 3, the specific embodiment of the present invention is: build a kind of car steering behavioural analysis system based on car-mounted terminal and server end, this car steering behavioural analysis system comprises intelligent terminal 1, be arranged on the air detectors 5 of probe vehicle exhaust on automobile exhaust pipe, server end 2, described intelligent terminal 1 comprises sensor 3, described sensor 3 comprises groups of acceleration sensors 31, gravity sensor group 33, geomagnetic sensor group 32, described intelligent terminal 1 comprises wireless communication module 1, motoring condition determination module 13, oil consumption acquisition module 14, server end 2 comprises average fuel consumption acquisition module 21, Fuel consumption analysis module 22, the accekeration of described groups of acceleration sensors 31 sensing automobile respective direction, the accekeration of described gravity sensor group 33 sensing automobiles on gravity direction, the angle value of described geomagnetic sensor group 32 sensing automobiles and magnetic direction, described intelligent terminal 1 arranges the threshold value of described pickup value, described intelligent terminal 1 is set up rotation matrix according to data and the primary data thereof of described geomagnetic sensor group 32 and described gravity sensor group 33, thereby obtain by transformation matrix the operation attitude that the vector angle of automobile in space obtains automobile, described intelligent terminal 1 builds coordinate system, the pickup value gathering according to described groups of acceleration sensors 31 and the automobilism attitude of obtaining, determine the component of acceleration of automobile on three-dimensional system of coordinate is axial, then according to the threshold value of the described pickup value arranging, determine that automobile is at the transport condition of the definite automobile of operation judgement in space.Described intelligent terminal 1 uploads to described server end 2 by the transport condition of automobile by wireless communication module 11, described server end 2 is pressed motoring condition and is divided car steering behavior type, and according to definite motoring condition, determines the type of car steering behavior.Described air detectors 5 is sent to described intelligent terminal 1 by the air numerical value of detection, the oil consumption that the air numerical evaluation that described oil consumption acquisition module 14 is discharged according to automobile is obtained automobile under this motoring condition; Described server end 2 gathers respectively many oil consumption under the normal transport condition of vehicle friction speed by vehicle model, and described average fuel consumption acquisition module 21 obtains the average fuel consumption under the normal transport condition of different model vehicle friction speed; Described intelligent terminal 1 is by the automobile fuel consumption under vehicle model and this motoring condition of obtaining and upload to described server end 2, and the average fuel consumption under initial velocity when described Fuel consumption analysis module 22 enters this running status according to automobile, this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.

As shown in Figure 2, specific embodiment of the invention process is: with example, illustrate below: described geomagnetic sensor group 32 comprises the geomagnetic sensor of three axial quadratures, and described gravity sensor group 33 comprises the gravity sensor of three axial quadratures.Space coordinates O of system made XYZ, the Z axis of these space coordinates is perpendicular to surface level, in this coordinate system, geomagnetic sensor group 32 data of this definite position, space of take are its primary data C ₀(X ₀, Y ₀, Z ₀), the primary data G of gravity sensor group 33 ₀(0,0 ,-1).When equipment moving, described geomagnetic sensor group 32 is output as G ₁(r, s, t), the data of gravity sensor group 33 outputs are C ₁(X ₁, Y ₁, Z ₁), to the described geomagnetic sensor group 32 gathering and the real time data C of described gravity sensor group 33 ₁, G ₁with its primary data C ₀, G ₀be normalized, that is, according to data and the primary data thereof of described geomagnetic sensor group 32 and described gravity sensor group 33, set up rotation matrix, by transformation matrix, obtain described ultrasonic device at the vector angle in space.Because described gravity sensor group 33 is arranged on the second ultrasonic device 2, described gravity sensor group 33 around the angle of three coordinate axis rotation be ultrasonic device in space with the angle of three axles, if the angle that described gravity sensor group 33 is rotated around X-axis is α, the angle of rotating around Y-axis is β, the angle of rotating around Z axis is γ, and the angle of described gravity sensor group 33 and three axles is (α, β, γ).

Rotation matrix represents be any vector around coordinate system O coordinate transform during the rotation of XYZ axis, vector around coordinate system O the transformation matrix of tri-axis rotations of XYZ be:

$X\left(\mathrm{\&alpha;}\right)=\left[\begin{array}{ccc}1& 0& 0\\ 0& \cos \mathrm{\&alpha;}& \sin \mathrm{\&alpha;}\\ 0& -\sin \mathrm{\&alpha;}& \cos \mathrm{\&alpha;}\end{array}\right]$

$Y\left(\mathrm{\&beta;}\right)=\left[\begin{array}{ccc}\cos \mathrm{\&beta;}& 0& -\sin \\ 0& 1& 0\\ \sin \mathrm{\&beta;}& 0& \cos \mathrm{\&beta;}\end{array}\right]$

$Z\left(\mathrm{\&gamma;}\right)=\left[\begin{array}{ccc}\cos \mathrm{\&gamma;}& \sin \mathrm{\&gamma;}& 0\\ -\sin \mathrm{\&gamma;}& \cos \mathrm{\&gamma;}& 0\\ 0& 0& 1\end{array}\right]$

Thus, to C ₀, C ₁, G ₀, G ₁set up simultaneous equations:

G ₀＝G ₁×X(α)Y(β)Z(γ) (1)

C ₀＝C ₁×X(α)Y(β)Z(γ) (2)

By matrixing and formula (1) (2), obtain:

$\left\{\begin{array}{c}\sin \mathrm{\&beta;}=r\\ -\cos \mathrm{\&beta;}\&CenterDot;\sin \mathrm{\&alpha;}=s\\ -\cos \mathrm{\&beta;}\&CenterDot;\cos \mathrm{\&alpha;}=t\end{array}\right\}---\left(3\right)$

$\left\{\begin{array}{c}X\cos \mathrm{\&beta;}\&CenterDot;\cos \mathrm{\&gamma;}+Y\cos \mathrm{\&beta;}\&CenterDot;\sin \mathrm{\&gamma;}=X_1-Z\sin \mathrm{\&beta;}\\ (X\sin \mathrm{\&alpha;}\&CenterDot;\sin \mathrm{\&beta;}+Y\cos \mathrm{\&alpha;})\cos \mathrm{\&gamma;}+(Y\sin \mathrm{\&alpha;}\&CenterDot;\sin \mathrm{\&beta;}-X\cos \mathrm{\&alpha;})\sin \mathrm{\&gamma;}=Y_1-Z\sin \mathrm{\&alpha;}\cos \mathrm{\&beta;}\\ (X\cos \mathrm{\&alpha;}\&CenterDot;\sin \mathrm{\&beta;}-Y\sin \mathrm{\&alpha;})\cos \mathrm{\&gamma;}+(Y\cos \mathrm{\&alpha;}\&CenterDot;\sin \mathrm{\&beta;}+X\sin \mathrm{\&alpha;})\sin \mathrm{\&gamma;}=Z_1-Z\cos \mathrm{\&alpha;}\cos \mathrm{\&beta;}\end{array}\right\}---\left(4\right)$

Because the space angle of vector angle (α, β, γ) and magnetic field sensor sets 58 is not corresponding one by one, for example angle vector is (30 °, 60 °, 100 °) and (150 °, 120 ° ,-80 °) space angle of expression, in order to eliminate the expression of this repetition, the span of restriction all angles :-180 °≤α <180 ° ,-90 °≤β <90 ° ,-180 °≤γ <180 °.

By (3), (4), obtain α, β, γ, the angle vector that is described gravity sensor group 33 and three axles is (α, β, γ), the angle vector that is to say automobile and three axles is (α, β, γ), thus, orientation and the angle of automobile have been determined, i.e. the operation attitude of automobile.

Described intelligent terminal 1 builds 3 d space coordinate system, and the pickup value gathering according to described groups of acceleration sensors 31 and the automobilism attitude of obtaining are determined the component of acceleration of automobile on three-dimensional system of coordinate is axial.Embodiment is: obtain automobilism attitude, the 3 d space coordinate being built by described intelligent terminal 1 is, determine that automobile is in the orientation in space, according to orientation and 3 d space coordinate axle, determine that car orientation is at the component of 3 d space coordinate axle, the pickup value gathering according to described groups of acceleration sensors 31 is determined the component of acceleration of automobile on three-dimensional system of coordinate is axial.Described intelligent terminal 1 arranges the threshold value of described pickup value, and then according to the threshold value of the described pickup value arranging, motoring condition determination module 13 is determined the transport condition of automobile.The state of described automobile comprise normally travel, one or more during urgency is given it the gun, lane change is travelled, bring to a halt, descending gives it the gun.

Described air detectors 5 is sent to described intelligent terminal 1 by the air numerical value of detection, described intelligent terminal 1 is according to definite motoring condition, obtain the air numerical value of the automobile discharge that under this motoring condition, described air detectors 1 is surveyed, the oil consumption that the air numerical evaluation that oil consumption acquisition module 14 is discharged according to automobile is obtained automobile under this motoring condition.

Obtain vehicle average fuel consumption: described server end 2 gathers respectively many oil consumption under the normal transport condition of vehicle friction speed by vehicle model, obtain the average fuel consumption under the normal transport condition of different model vehicle friction speed.In the present invention, employ the large data capability that automobile terminal gathers, gather many oil consumption under the normal transport condition of vehicle friction speed, then, average fuel consumption acquisition module 21 is pressed the average fuel consumption under the normal transport condition of vehicle model statistics friction speed.

Fuel consumption analysis: described intelligent terminal 1 is by the automobile fuel consumption under vehicle model and this motoring condition of obtaining and upload to described server end 2, and the average fuel consumption under initial velocity when Fuel consumption analysis module 22 enters this running status according to automobile, this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.

As shown in Figure 2, the preferred embodiment of the present invention is: described groups of acceleration sensors 31 comprises the 3rd acceleration transducer 313 of the first acceleration transducer 311 of sensing automobile fore-and-aft direction, the second acceleration transducer 312 of sensing vehicle right and left direction and sensing automobile above-below direction, described the first acceleration transducer 311, the second acceleration transducer 312, the axial quadrature of the 3rd acceleration transducer 313.By described the first acceleration transducer 311, the second acceleration transducer 312, the 3rd acceleration transducer 313 of axial quadrature are set, simultaneously, described the first acceleration transducer 311, the second acceleration transducer 312, the 3rd acceleration transducer 313 be the accekeration of sensing space three-dimensional respectively, conveniently calculate, and obtain best effect with minimum acceleration transducer.If described the first acceleration transducer 311, the second acceleration transducer 312, the 3rd acceleration transducer 313 respectively sensing space three-dimensional overlap with described intelligent terminal 1 structure 3 d space coordinate system, the acceleration condition of convenient definite automobile.

Further technical scheme of the present invention is: the state of described automobile comprise normally travel, one or more during urgency is given it the gun, lane change is travelled, bring to a halt, descending gives it the gun.

As shown in Figure 1, the preferred embodiment of the present invention is: also comprise that described intelligent terminal 1 obtains the instantaneous velocity value of automobile.When determining motoring condition, by the instantaneous velocity value of automobile, can determine more exactly the transport condition of automobile.Such as starting is given it the gun, be not classified as anxious giving it the gun.

As shown in Figure 1, the preferred embodiment of the present invention is: also comprise mobile terminal 4, described server end 2 sends to described mobile terminal 4 by analysis result.By mobile terminal 4, setting up network with server end 2 is connected, can to server end 2, send request by mobile terminal 4, obtain status information or the analysis result of specifying or binding automobile, also can directly by server end 2, to mobile terminal 4, send vehicle condition information or analysis results.By server end 2, to intelligent terminal 1, sent, and export 12 these information by the output module of intelligent terminal 1.

Technique effect of the present invention is: build a kind of automobile fuel consumption analytical approach and system based on motoring condition, by groups of acceleration sensors 31, gravity sensor group 33, geomagnetic sensor group 32 is determined motoring condition, the oil consumption that the air numerical evaluation of then discharging according to automobile is obtained automobile under this motoring condition, by vehicle model, gather respectively many oil consumption under the normal transport condition of vehicle friction speed, obtain the average fuel consumption under the normal transport condition of different model vehicle friction speed, initial velocity when described server end 2 enters this running status according to automobile, average fuel consumption under this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.The present invention in conjunction with definite motoring condition, obtains the oil consumption of unnecessary consumption under this motoring condition by the automobile fuel consumption analytical approach of large data, the oil consumption of convenient definite automobile under certain transport condition.

Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (10)

1. the automobile fuel consumption analytical approach based on motoring condition, it is characterized in that, automobile fuel consumption analytic system comprises intelligent terminal, is arranged on the air detectors of probe vehicle exhaust on automobile exhaust pipe, server end, described intelligent terminal comprises sensor, described sensor comprises groups of acceleration sensors, gravity sensor group, geomagnetic sensor group, and the automobile fuel consumption analytical approach based on motoring condition comprises the steps:

Determine motoring condition: the accekeration of described groups of acceleration sensors sensing automobile respective direction, the accekeration of described gravity sensor group sensing automobile on gravity direction, the angle value of described geomagnetic sensor group sensing automobile and magnetic direction, described intelligent terminal arranges the threshold value of described pickup value, described intelligent terminal is set up rotation matrix according to data and the primary data thereof of described geomagnetic sensor group and described gravity sensor group, thereby obtain by transformation matrix the operation attitude that the vector angle of automobile in space obtains automobile, described intelligent terminal builds 3 d space coordinate system, according to the pickup value of described groups of acceleration sensors collection and the automobilism attitude obtained, determine the component of acceleration of automobile on three-dimensional system of coordinate is axial, then according to threshold value and the automobilism attitude of the described pickup value arranging, determine the transport condition of automobile,

Calculate oil consumption: described air detectors is sent to described intelligent terminal by the air numerical value of detection, described intelligent terminal is according to definite motoring condition, obtain the air numerical value of the automobile discharge that under this motoring condition, described air detectors is surveyed, the oil consumption that the air numerical evaluation of discharging according to automobile is obtained automobile under this motoring condition;

Obtain vehicle average fuel consumption: described server end gathers respectively many oil consumption under the normal transport condition of vehicle friction speed by vehicle model, obtain the average fuel consumption under the normal transport condition of different model vehicle friction speed;

Fuel consumption analysis: described intelligent terminal is by the automobile fuel consumption under vehicle model and this motoring condition of obtaining and upload to described server end, and the average fuel consumption under initial velocity when described server end enters this running status according to automobile, this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.

2. the automobile fuel consumption analytical approach based on motoring condition according to claim 1, is characterized in that, the transport condition of described automobile comprise suddenly give it the gun, one or more during lane change is travelled, bring to a halt, descending gives it the gun.

3. the automobile fuel consumption analytical approach based on motoring condition according to claim 1, it is characterized in that, described groups of acceleration sensors comprises the 3rd acceleration transducer of the first acceleration transducer of sensing automobile fore-and-aft direction, the second acceleration transducer of sensing vehicle right and left direction and sensing automobile above-below direction, and described the first acceleration transducer, the second acceleration transducer, the 3rd acceleration sensor axis are to quadrature.

4. the automobile fuel consumption analytical approach based on motoring condition according to claim 3, is characterized in that, also comprises that described intelligent terminal obtains the instantaneous velocity value of automobile.

5. the automobile fuel consumption analytical approach based on motoring condition according to claim 1, is characterized in that, also comprise mobile terminal, described server end sends to described mobile terminal by analysis result.

6. the automobile fuel consumption analytic system based on motoring condition, it is characterized in that, comprise intelligent terminal, be arranged on the air detectors of probe vehicle exhaust on automobile exhaust pipe, server end, described intelligent terminal comprises sensor, described sensor comprises groups of acceleration sensors, gravity sensor group, geomagnetic sensor group, described intelligent terminal comprises wireless communication module, motoring condition determination module, oil consumption acquisition module, described server end comprises average fuel consumption acquisition module, Fuel consumption analysis module, the accekeration of described groups of acceleration sensors sensing automobile respective direction, the accekeration of described gravity sensor group sensing automobile on gravity direction, the angle value of described geomagnetic sensor group sensing automobile and magnetic direction, described intelligent terminal arranges the threshold value of described pickup value, described intelligent terminal is set up rotation matrix according to data and the primary data thereof of described geomagnetic sensor group and described gravity sensor group, thereby obtain by transformation matrix the operation attitude that the vector angle of automobile in space obtains automobile, described intelligent terminal builds 3 d space coordinate system, according to the pickup value of described groups of acceleration sensors collection and the automobilism attitude obtained, determine the component of acceleration of automobile on three-dimensional system of coordinate is axial, described motoring condition determination module is according to the threshold value of the described pickup value arranging and the transport condition that automobilism attitude determination module is determined automobile, described air detectors is sent to described intelligent terminal by the air numerical value of detection, the oil consumption that the air numerical evaluation that described oil consumption acquisition module is discharged according to automobile is obtained automobile under this motoring condition, described server end gathers respectively many oil consumption under the normal transport condition of vehicle friction speed by vehicle model, and described average fuel consumption acquisition module obtains the average fuel consumption under the normal transport condition of different model vehicle friction speed, described intelligent terminal is by the automobile fuel consumption under vehicle model and this motoring condition of obtaining and upload to described server end, and the average fuel consumption under initial velocity when described Fuel consumption analysis module enters this running status according to automobile, this initial velocity under this model normal vehicle operation state and the automobile fuel consumption under this motoring condition obtain the oil consumption of unnecessary consumption under this motoring condition.

7. the automobile fuel consumption analytic system based on motoring condition according to claim 6, it is characterized in that, described groups of acceleration sensors comprises the 3rd acceleration transducer of the first acceleration transducer of sensing automobile fore-and-aft direction, the second acceleration transducer of sensing vehicle right and left direction and sensing automobile above-below direction, and described the first acceleration transducer, the second acceleration transducer, the 3rd acceleration sensor axis are to quadrature.

8. the automobile fuel consumption analytic system based on motoring condition according to claim 6, is characterized in that the groups of acceleration sensors that described acceleration transducer is axial quadrature.

9. the automobile fuel consumption analytic system based on motoring condition according to claim 6, is characterized in that, also comprise mobile terminal, described server end sends to described mobile terminal by analysis result.

10. the automobile fuel consumption analytic system based on motoring condition according to claim 6, is characterized in that, described intelligent terminal comprises output module, and described server end is sent to described intelligent terminal output by analysis result.