CN103287434B - A kind of running conditions of vehicle engine self-adaptive system - Google Patents
A kind of running conditions of vehicle engine self-adaptive system Download PDFInfo
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- CN103287434B CN103287434B CN201210040674.5A CN201210040674A CN103287434B CN 103287434 B CN103287434 B CN 103287434B CN 201210040674 A CN201210040674 A CN 201210040674A CN 103287434 B CN103287434 B CN 103287434B
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Abstract
The present invention discloses a kind of running conditions of vehicle engine self-adaptive system, comprises GPS navigation module, vehicle operation data acquisition module, whole-car parameters and engine operating condition data memory module, map datum memory module, data operation module, decision-making module and vehicle control module.Vehicle configuration parameter in the vehicle operation data that data operation module in the present invention gathers according to vehicle operation data acquisition module and whole-car parameters and engine operating condition data memory module, calculates vehicle current operating conditions parameter; Then car load power demand is judged by decision-making module according to vehicle current operating conditions parameter and current road segment road information, and then in whole-car parameters and engine operating condition data memory module, obtain corresponding engine operating parameter according to current demand, and performed by vehicle control module.The present invention under the prerequisite ensureing power performance, by carrying out conservative control to the output characteristic of driving engine, thus can reach effect of fuel-economizing.
Description
Technical field
The present invention relates to vehicle motor control field, relate to a kind of running conditions of vehicle engine self-adaptive system in particular, it is by controlling driving engine, thus under the prerequisite not reducing power performance, can reach the effect reducing complete-vehicle oil consumption.
Background technology
According to the dynamic response characteristic of driving engine, when throttle presents stable state change, the dynamic relationship between the moment of torsion of driving engine and rotating speed is close to linearly, and its curve is a curve lagging behind throttle change; When throttle presents Spline smoothing, engine output torque increases instantaneously, and Engine Injection Mass strengthens suddenly with throttle change, and because engine speed and pressure charging system are that stable state rises, therefore it cannot catch up with the change of fuel charge.Test figures shows: under the throttle step of 100%, within the time of about 5 seconds, mixture gas overrich in cylinder, and exist oil inflame not exclusively, oil consumption rises and the problem such as discharge variation.
Under operating modes such as such as starting to walk in vehicle travel process, accelerate and shift gears, driver usually can foot throttle greatly in order to raise speed as early as possible, throttle can be loosened again Deng after vehicle arrival goal pace, the moment operating in engine operating condition change like this, great amount of fuel oil can be caused not burn just discharge with tail gas completely, vehicle oil consumption is raised; And increase instantaneously due to engine torque, accelerate too fastly to cause overshoot, so often need braking deceleration, namely add energy dissipation; Therefore should be soft to the operation of throttle in economic drive manner, and emergent acceleration and sudden stop.
In view of this, the defect in-depth study that the present inventor causes oil consumption higher for the bad operation of driver in prior art, has this case to produce then.
Summary of the invention
The object of the present invention is to provide a kind of running conditions of vehicle engine self-adaptive system, thus realize under the prerequisite guaranteeing power performance, reduce effect of complete-vehicle oil consumption.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of running conditions of vehicle engine self-adaptive system, wherein, comprising:
GPS navigation module, for obtaining the current location information of vehicle;
Vehicle operation data acquisition module, for the operating data of collection vehicle, vehicle operation data comprises vehicle current vehicle speed, engine speed, engine torque, Das Gaspedal aperture and brake pedal aperture;
Whole-car parameters and engine operating condition data memory module, for store car configuration parameter and the engine operating parameter corresponding to different dynamic demand;
Map datum memory module, for storing the map datum of vehicle operation area, and the current location information obtained according to GPS navigation module and extract current road segment road information;
Data operation module, calculates vehicle current operating conditions parameter according to the vehicle operation data of vehicle operation data acquisition module collection, and this vehicle current operating conditions parameter comprises vehicle acceleration, Das Gaspedal aperture rate of change and gear; This data operation module also in conjunction with the vehicle configuration parameter in whole-car parameters and engine operating condition data memory module, calculates road resistance characteristic coefficient; The vehicle current operating conditions parameter combining current road segment road information and the data operation module calculating obtained from map datum memory module again judges car load power demand;
Decision-making module, according to the car load power demand that data operation module calculates, inquires about the engine operating parameter in whole-car parameters and engine operating condition data memory module, determines corresponding engine operating parameter;
Vehicle control module, receives engine operating parameter and controls the output characteristic of driving engine.
Further, this system also comprises human-computer interaction module, and this human-computer interaction module is used for inputting vehicle operating information for driver, and this vehicle operating information comprises car load and line status; This data operation module calculates car load power demand according to vehicle operating information, current road segment road information together with vehicle current operating conditions parameter.
Further, this vehicle configuration parameter comprises gearbox-gear speed ratio, base ratio, Vehicle preparation quality, tire rolling radius, mechanical efficiency of power transmission, vehicle rotor inertia conversion factor, air resistance coefficient and vehicle wind area.
Further, this current road segment road information comprises the gradient, pavement state, site of road attribute and real-time road.
After adopting said structure, vehicle configuration parameter in the vehicle operation data that in the present invention, data operation module gathers according to vehicle operation data acquisition module and whole-car parameters and engine operating condition data memory module, calculates vehicle current operating conditions parameter and road resistance characteristic coefficient; And then judge car load power demand in conjunction with current road segment road information by data operation module according to vehicle current operating conditions parameter and road resistance characteristic coefficient, finally in whole-car parameters and engine operating condition data memory module, obtain corresponding engine operating parameter according to the power demand of current car load again by decision-making module, and performed by vehicle control module.The present invention like this under the prerequisite ensureing power performance, by carrying out conservative control to the output characteristic of driving engine, thus can reach effect of fuel-economizing.
Accompanying drawing explanation
Fig. 1 is the structural principle block diagram that the present invention relates to a kind of running conditions of vehicle engine self-adaptive system.
In figure:
Engine self-adaptive system 100
GPS navigation module 1 vehicle operation data acquisition module 2
Whole-car parameters and engine operating condition data memory module 3
Map datum memory module 4 data operation module 5
Decision-making module 6 vehicle control module 7
Human-computer interaction module 8.
Detailed description of the invention
In order to explain technical scheme of the present invention further, below by specific embodiment, the present invention will be described in detail.
As shown in Figure 1, the structural principle block diagram of a kind of running conditions of vehicle engine self-adaptive system 100 that the present invention relates to, this engine self-adaptive system 100 comprises GPS navigation module 1, vehicle operation data acquisition module 2, whole-car parameters and engine operating condition data memory module 3, map datum memory module 4, data operation module 5, decision-making module 6 and vehicle control module 7.
This GPS navigation module 1, for obtaining the current location information of vehicle; Concrete, this GPS navigation module 1 comprises gps antenna and gps receiver, and it adopts known method to obtain the location information of vehicle self, and this information positioned in map datum memory module 4.
This vehicle operation data acquisition module 2, for the operating data of collection vehicle, this vehicle operation data specifically comprises vehicle current vehicle speed, engine speed, engine torque, Das Gaspedal aperture and brake pedal aperture; It can directly be obtained by CAN communication on car, for the vehicle not arranging CAN, then needs the corresponding sensor of additional configuration to carry out data acquisition.
This whole-car parameters and engine operating condition data memory module 3, for store car configuration parameter and the engine operating parameter corresponding to different dynamic demand; Particularly, in a particular embodiment, this vehicle configuration parameter comprises gearbox-gear speed ratio, base ratio, Vehicle preparation quality, tire rolling radius, mechanical efficiency of power transmission, vehicle rotor inertia conversion factor, air resistance coefficient and vehicle wind area.This engine operating parameter is then for corresponding to the parameter of Current vehicle driving engine, and it adopts the mode prestored to arrange, and this engine operating parameter is distinguished to some extent according to different power demands.
This map datum memory module 4, for storing the map datum of vehicle operation area, and the current location information obtained according to GPS navigation module 1 and extract current road segment road information; Particularly, this current road segment road information comprises the information such as the gradient, pavement state, site of road attribute and real-time road, and this site of road attribute is mainly used in identifying urban road.
This data operation module 5, calculate vehicle current operating conditions parameter according to the vehicle operation data that vehicle operation data acquisition module 2 gathers, this vehicle current operating conditions parameter comprises vehicle equivalence resistance to motion, vehicle acceleration, Das Gaspedal aperture rate of change and gear; This data operation module 5 also in conjunction with the vehicle configuration parameter in whole-car parameters and engine operating condition data memory module 3, calculates road resistance characteristic coefficient; The vehicle current operating conditions parameter combining current road segment road information and data operation module 3 calculating obtained from map datum memory module 4 again judges car load power demand.
This decision-making module 6, according to the car load power demand that data operation module 5 calculates, inquires about the engine operating parameter in whole-car parameters and engine operating condition data memory module 3, determines corresponding engine operating parameter;
This vehicle control module 7, is all connected with driving engine with decision-making module 6, and it receives the engine operating parameter transferred of decision-making module 6 and controls the output characteristic of driving engine.
Like this, vehicle configuration parameter in the vehicle operation data that in the present invention, data operation module 5 gathers according to vehicle operation data acquisition module 2 and whole-car parameters and engine operating condition data memory module 3, calculates vehicle current operating conditions parameter and road resistance characteristic coefficient; And then judge car load power demand by data operation module according to vehicle current operating conditions parameter and current road segment road information, finally in whole-car parameters and engine operating condition data memory module 3, obtain corresponding engine operating parameter according to the power demand of current car load by decision-making module, and performed by vehicle control module 7.
Preferably, this engine self-adaptive system 100 also comprises human-computer interaction module 8, and this human-computer interaction module 8 is for inputting vehicle operating information for driver, and this vehicle operating information comprises car load and line status; This data operation module 5 calculates car load power demand according to vehicle operating information, current road segment road information together with vehicle current operating conditions parameter.In addition, by this human-computer interaction module 8, the artificial manipulation of driver can also be accepted, allow whole engine self-adaptive system 100 to exit self adaptation state or according to the corresponding engine condition of driver's option and installment.
The implementation procedure that the present invention relates to engine self-adaptive system 100 is described below in detail:
When vehicle travels, the various external force of action scope vehicle can be classified as propulsive effort and resistance to motion in a forward direction.Vehicle travel resistance equation of equilibrium is:
In formula: F
tfor propulsive effort, F
ffor rolling resistance, F
wfor air resistance, F
ifor grade resistance, F
jfor resistance due to acceleration.
This formula is equivalent to:
In formula: T
tqfor engine torque, i
gfor transmission ratio, i
0for final driver ratio, r is radius of wheel,
for mechanical efficiency of power transmission, δ is vehicle rotor inertia conversion factor, and m is vehicular gross combined weight, and a is vehicle acceleration, and g is acceleration due to gravity, and f is coefficient of rolling resistance, and θ is road grade angle, and v is the speed of a motor vehicle, C
dfor air resistance coefficient, A is vehicle wind area.
For above data formula, can convert thereof into:
λ is as road resistance characteristic coefficient or be called the road equivalence gradient.
Wherein, engine torque T
tqall can obtain from CAN network with speed of a motor vehicle v, or obtain by communicating with corresponding ECU (Electrical Control Unit).For i
g, i
0, r,
, δ, C
din the whole-car parameters being stored in car-mounted terminal in advance with the parameter such as A and engine operating condition data memory module 3, it also by after the smoothing process of the speed of a motor vehicle that obtains, can calculate acceleration/accel a by the rate of change of the speed of a motor vehicle:
T is the speed of a motor vehicle sampling interval, v
1to v
10the vehicle speed value of nearest 10 records, v
10it is up-to-date vehicle speed value.
In addition, due to when throttle rate of change is large, engine torque can produce sudden change equally, but vehicle cannot be followed engine torque well due to self large inertia and be changed, the λ calculated so can be caused bigger than normal, therefore in use should remove the data of this part, namely only be suitable for stable state throttle or throttle rate of change is little and data that the are uniform moment calculate; Therefore the Das Gaspedal aperture gathered by vehicle operation data acquisition module 2 and brake pedal aperture, get rid of abnormal moment of torsion in the corresponding moment and to the smoothing process of the engine torque of remainder; Similarly; for gear; also there is same meaning; namely by investigating current gear; if under current speed of operation; current gear mal or improper, then get rid of the reference value now calculating drag characteristics coefficient lambda, and it is also mainly because inappropriate gear can cause vehicle torque parameter mal.For complete vehicle quality m, it is except comprising Vehicle preparation quality, also by human-computer interaction module 8 by the input of driver, and the load condition of to be got on the bus by this secondary line is taken into account.
For whole decision process, it is then the drag characteristics coefficient lambda first calculating present road, this drag characteristics coefficient lambda characterizes the feature of road, namely comprise the information such as the gradient, pavement state (i.e. road resistance size), then then calculated the power demand of vehicle under current road segment by following company:
Wherein: v value when giving tacit consent to is road speed limit and designs one less in economic speed per hour.When the real-time road condition information reflection road degree of crowding, this value can change according to crowded degree, real-time road system can propose one to the degree of crowding and describe such as crowded or unimpeded qualitatively, simultaneous quantitative is described as " at present so-and-so average link speed 20km/h ", the now speed of a motor vehicle that provides for real-time road condition information of v value, it embodies the road degree of crowding and real-time road.
for coefficient of reserve power, it is a definite value relevant to vehicle, its effect ensure that vehicle has enough power for accelerating, and the driving experience choosing main consideration power performance relevant regulations and driver of this value, ensures vehicle acceleration performance in the reasonable scope.β is circuit coefficient of correction, this parameter affect by the line status of the input information of human-computer interaction interface, as cable release, in limited time arrive class's line of promising to undertake and ensure that vehicle has more superior dynamic property by the value of increase β.
be then safety factor, it is for guaranteeing that vehicle has enough power to tackle various unforeseen circumstances.During due to design
consider safe clearance, therefore generally
, for meeting dynamic property and security consideration, or region that the gradient larger bad at road condition, power can be strengthened, and makes
to guarantee that power is sufficient.
According to the above-mentioned i.e. tractive force F needed for vehicle calculated
t.According to the economic gear determination speed ratio i under each shelves speed ratio of vehicle in configuration parameter and the v speed of a motor vehicle
0, according to two equivalent equations started most
?
calculate the T under this state
tqmaximum engine torque demand; Again by P=F
t* v calculation engine maximum power requirement; This engine power finally selected should meet the higher value in torque peak demand and maximum power requirement.
Engine operating parameter corresponding to finally obtaining from whole-car parameters and engine operating condition data memory module according to these demands, and performed by vehicle control module 7.In summary, the present invention under the prerequisite ensureing power performance, by carrying out conservative control to the output characteristic of driving engine, thus can reach effect of fuel-economizing.
Above-described embodiment and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.
Claims (3)
1. a running conditions of vehicle engine self-adaptive system, is characterized in that, comprising:
GPS navigation module, for obtaining the current location information of vehicle;
Vehicle operation data acquisition module, for the operating data of collection vehicle, vehicle operation data comprises vehicle current vehicle speed, engine speed, engine torque, Das Gaspedal aperture and brake pedal aperture;
Whole-car parameters and engine operating condition data memory module, for store car configuration parameter and the engine operating parameter corresponding to different dynamic demand;
Map datum memory module, for storing the map datum of vehicle operation area, and the current location information obtained according to GPS navigation module and extract current road segment road information;
Data operation module, calculates vehicle current operating conditions parameter according to the vehicle operation data of vehicle operation data acquisition module collection, and this vehicle current operating conditions parameter comprises vehicle acceleration, Das Gaspedal aperture rate of change and gear; This data operation module also in conjunction with the vehicle configuration parameter in whole-car parameters and engine operating condition data memory module, calculates road resistance characteristic coefficient; The vehicle current operating conditions parameter combining current road segment road information and the data operation module calculating obtained from map datum memory module again judges car load power demand;
Decision-making module, according to the car load power demand that data operation module calculates, inquires about the engine operating parameter in whole-car parameters and engine operating condition data memory module, determines corresponding engine operating parameter;
Vehicle control module, receives engine operating parameter and controls the output characteristic of driving engine;
This system also comprises human-computer interaction module, and this human-computer interaction module is used for inputting vehicle operating information for driver, and this vehicle operating information comprises car load and line status; This data operation module calculates car load power demand according to vehicle operating information, current road segment road information together with vehicle current operating conditions parameter.
2. a kind of running conditions of vehicle engine self-adaptive system as claimed in claim 1, it is characterized in that, this vehicle configuration parameter comprises gearbox-gear speed ratio, base ratio, Vehicle preparation quality, tire rolling radius, mechanical efficiency of power transmission, vehicle rotor inertia conversion factor, air resistance coefficient and vehicle wind area.
3. a kind of running conditions of vehicle engine self-adaptive system as claimed in claim 1, it is characterized in that, this current road segment road information comprises the gradient, pavement state, site of road attribute and real-time road.
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| CN103511099A (en) * | 2013-10-10 | 2014-01-15 | 大连海洋大学 | Automobile automatic oil-saving system and method for utilizing automobile automatic oil-saving system to save oil |
| CN105046050B (en) * | 2015-06-18 | 2018-01-09 | 陕西法士特齿轮有限责任公司 | A kind of dynamic gradient computational methods based on automobile dynamics |
| CN105083277B (en) * | 2015-08-06 | 2018-12-14 | 潍柴动力股份有限公司 | The gear output policy of AMT bus |
| CN105857312B (en) * | 2016-05-26 | 2018-06-29 | 吉林大学 | A kind of highway heavy truck speed travels optimization method |
| CN109826950B (en) * | 2018-12-29 | 2021-01-19 | 潍柴动力股份有限公司 | Vehicle gear calculation method |
| CN109649371A (en) * | 2019-01-09 | 2019-04-19 | 兰州工业学院 | A kind of hybrid power heavy motor truck power control system with super capacitor |
| CN112440999B (en) * | 2019-08-16 | 2022-05-20 | 宇通客车股份有限公司 | New energy vehicle and driving force correction method and device thereof |
| CN112302813B (en) * | 2020-10-27 | 2022-10-21 | 东风越野车有限公司 | Power override control method for vehicle engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6188316B1 (en) * | 1998-03-12 | 2001-02-13 | Fuji Jukogyo Kabushiki Kaisha | Vehicle dynamic control system |
| CN101275840A (en) * | 2007-03-30 | 2008-10-01 | 爱信艾达株式会社 | Vehicle behavior learning apparatuses, methods, and programs |
| CN101776021A (en) * | 2009-01-13 | 2010-07-14 | 郑州宇通客车股份有限公司 | Method for economizing fuel by adjusting control parameters of engine to adapt to running conditions of vehicle |
| CN201756098U (en) * | 2010-08-11 | 2011-03-09 | 蓝骏 | Multifunctional vehicle-mounted intelligent instrument |
| CN102023018A (en) * | 2009-09-09 | 2011-04-20 | 歌乐牌株式会社 | Method of predicting energy consumption, apparatus for predicting energy consumption, and terminal apparatus |
| CN202944253U (en) * | 2012-10-31 | 2013-05-22 | 樊红娟 | Motorway automobile anti-collision system high in reliability and low in false alarm rate |
-
2012
- 2012-02-22 CN CN201210040674.5A patent/CN103287434B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6188316B1 (en) * | 1998-03-12 | 2001-02-13 | Fuji Jukogyo Kabushiki Kaisha | Vehicle dynamic control system |
| CN101275840A (en) * | 2007-03-30 | 2008-10-01 | 爱信艾达株式会社 | Vehicle behavior learning apparatuses, methods, and programs |
| CN101776021A (en) * | 2009-01-13 | 2010-07-14 | 郑州宇通客车股份有限公司 | Method for economizing fuel by adjusting control parameters of engine to adapt to running conditions of vehicle |
| CN102023018A (en) * | 2009-09-09 | 2011-04-20 | 歌乐牌株式会社 | Method of predicting energy consumption, apparatus for predicting energy consumption, and terminal apparatus |
| CN201756098U (en) * | 2010-08-11 | 2011-03-09 | 蓝骏 | Multifunctional vehicle-mounted intelligent instrument |
| CN202944253U (en) * | 2012-10-31 | 2013-05-22 | 樊红娟 | Motorway automobile anti-collision system high in reliability and low in false alarm rate |
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