CN104071152A - Compensation method for finished automobile power adjustment utilizing gradient sensor - Google Patents
Compensation method for finished automobile power adjustment utilizing gradient sensor Download PDFInfo
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- CN104071152A CN104071152A CN201410317032.4A CN201410317032A CN104071152A CN 104071152 A CN104071152 A CN 104071152A CN 201410317032 A CN201410317032 A CN 201410317032A CN 104071152 A CN104071152 A CN 104071152A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000004044 response Effects 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 230000009194 climbing Effects 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
- B60W40/076—Slope angle of the road
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention is suitable for the field of engines, and provides a compensation method for a finished automobile power adjustment utilizing a gradient sensor. The compensation method comprises the following steps that: A, the gradient sensor detects the running road surface in real time when an automobile runs; B, the gradient sensor converts detection data to an electric signal and transmits the electric signal to an ECU to process; C, the ECT controls power compensation and increases a finished automobile power according to gradient data. By compensating the power by the method, the finished automobile power of the automobiles of customers in mountainous areas or automobiles in a climbing working condition is sufficient when the speed ratio of the same manual-gear transmission system meets the power and economical efficiency of flat areas, and during flat road surface running and finished automobile oil consumption test circulation, oil consumption is reduced, and product competitiveness is improved; flat and finished automobile oil consumption test data is ensured, the finished automobile dynamic property in the mountainous areas or the climbing working condition is improved, and a finished automobile oil consumption declared value is reduced.
Description
Technical field
The invention belongs to engine art, relate in particular to a kind of compensation method that utilizes Slope Transducer to adjust car load power.
Background technology
The driving system speed ratio design of automobile need to consider the factors such as complete vehicle quality, engine performance, client's practical application operating mode, to realize the well balanced of dynamic property and economy.Most of areas at home, plain topography is in the majority, to manual vehicle, adopts the transmission speed ratio design of being partial to economy, can, when tractive performance does not obviously reduce, improve car load fuel economy.
Same set of manual driving system speed ratio scheme, meet region of no relief power and economy time, mountain area client or climbing operating mode car load under power, cause that client complains; When meeting the dynamic property of mountain area client or climbing operating mode, flat road surface travel and complete-vehicle oil consumption test cycle in, oil consumption is high, causes that client complains, reduces product competitiveness.
Summary of the invention
For above-mentioned problem, the invention provides a kind ofly, utilize Slope Transducer to adjust the compensation method of car load power.
The present invention is achieved in that a kind of compensation method that utilizes Slope Transducer to adjust car load power, and described compensation method comprises the following steps:
When A, Vehicle Driving Cycle, Slope Transducer detects the road surface of exercising in real time;
B, Slope Transducer will detect data transfer electric signal transmission and process to ECU;
C, ECT control power compensation according to Gradient increases car load power.
Further technical scheme of the present invention is: described power compensation comprises moment of torsion output compensation rate, target idling compensation rate and throttle torque responsive compensation rate;
Described moment of torsion output compensation rate, the moment of torsion output when improving gradient road surface, on the basis of original moment of torsion output valve, increases the moment of torsion of certain numerical value, and the driving engine improving now is finally exported total torque value;
Described target idling compensation rate, for promoting target idling numerical value, prevents that the improper engine speed that causes of driver's operation from dropping too much, causes power wretched insufficiency or flame-out;
Described throttle torque responsive compensation rate, for accelerating throttle response, improves the torque responsive speed of driving engine.
Further technical scheme of the present invention is: described moment of torsion output compensation rate is global variable, according to the actual grade value of road gradient, by software, is tabled look-up and is determined moment of torsion output compensation rate with the mode of interpolation calculation.
Further technical scheme of the present invention is: described target idling compensation rate is by increasing engine speed to the mode of parking target idling under gradient road surface and driving target idling.
Further technical scheme of the present invention is: described throttle torque responsive compensation rate is carried out correction-compensation by gradient numerical value and engine speed to existing throttle torque responsive coefficient.
The invention has the beneficial effects as follows: adopt this method compensation power, solved same set of manual driving system speed ratio, when meeting region of no relief power and economy, mountain area client or climbing operating mode car load power are sufficient, flat road surface travel and complete-vehicle oil consumption test cycle in, fuel consumption reduction, improves product competitiveness.Guarantee Plain and complete-vehicle oil consumption test data, the car load dynamic property while having improved again mountain area or climbing operating mode, reduces complete-vehicle oil consumption declared value.
Accompanying drawing explanation
Fig. 1 is that the Slope Transducer of utilizing that the embodiment of the present invention provides is adjusted the compensation method diagram of circuit of car load power.
The specific embodiment
Fig. 1 shows the diagram of circuit that utilizes Slope Transducer to adjust the compensation method of car load power provided by the invention, and details are as follows for it:
In step S1, after automobile starting, Slope Transducer just enters mode of operation, and when running car is on road surface, the real-time road surface situation to travelling of Slope Transducer detects.
In step S2, Slope Transducer becomes electric signal transmission to the ECU (abbreviation of electronic control unit the road surface data transfer detecting, electronic control unit (the specially electronic control unit of mean engine), in some systems owing to there being a plurality of controller/control units, also ECU is called to ECM (engine control module), engine control module, refer in this application " controller or control unit ") carry out data processing, ECU is to the road surface data analysis, the calculation process that receive.
In step S3, ECU carries out power compensation according to the road surface Data Control driving engine transmission speed ratio of analysis, computing to car load power; Described power compensation comprises moment of torsion output compensation rate, target idling compensation rate and throttle torque responsive compensation rate; Described moment of torsion output compensation rate, the moment of torsion output when improving gradient road surface, on the basis of original moment of torsion output valve, increases the moment of torsion of certain numerical value, and the driving engine improving now is finally exported total torque value; Described target idling compensation rate, for promoting target idling numerical value, prevents that the improper engine speed that causes of driver's operation from dropping too much, causes power wretched insufficiency or flame-out; Described throttle torque responsive compensation rate, for accelerating throttle response, improves the torque responsive speed of driving engine.When Vehicle Driving Cycle is during to gradient road surface, Slope Transducer is identified gradient size automatically, and gradient numerical value is sent to ECU.ECU obtains after gradient numerical value, according to actual driving cycles, from moment of torsion output compensation rate, target idling compensation rate and three aspects of throttle-torque responsive compensating factor, carry out power output compensation, thereby realize, increase engine power output, improve car load tractive performance.Wherein moment of torsion output compensation rate is global variable, as shown in Table 1, can be according to actual ratio of slope under the various operating modes on gradient road surface, by software, table look-up and the mode of interpolation calculation, determine engine torque output compensation rate, improve moment of torsion output; Target idling compensation rate is passed through the mode to parking target idling and the raising of driving target idling under gradient road surface, increase the engine speed of idling operation, improve the torque reserve basis of the gearshift of gradient road surface, hill start operation, lifting vehicle power, as shown in Table 2; Throttle-torque responsive compensating factor, according to gradient numerical value and engine speed, carries out correction-compensation to existing throttle-torque responsive coefficient, increases throttle speed of response and moment of torsion output, improves intuitively vehicle power and drives sensation, as shown in Table 3.
Table one, the gradient-moment of torsion output compensation rate are demarcated form
Table two, the gradient-target idling compensation rate are demarcated form
X-axis is gradient numerical value, as 5%, 10%, 15%; Y-axis is engine speed, and unit is RPM; Z axis is the gradient coefficient of correction of throttle-torque responsive
Table three, the gradient-throttle-torque responsive coefficient of correction
In existing engine management system, increase Slope Transducer.Slope Transducer, ECU are carried out to hardware integration.Automobile up slope degree sensor is used for greatly the functions such as car ramp keeps, uphill starting is auxiliary, downhill braking.When vehicle is during for gradient road surface, brake system and engine management system are identified gradient road surface by Slope Transducer, and then realize that ramp keeps, hill start is auxiliary and the function such as downhill braking.In order to bring into play better the effect of Slope Transducer, increase and utilize gradient signal to carry out ECU control logic and the software of power control optimization.Adopt a set of transmission speed ratio design plan of being partial to car load fuel economy simultaneously.
Vehicle is at home during most of road traveling, road gradient resistance is also little, so the design of car load driving system speed ratio adopted the scheme of being more partial to fuel economy, has reduced power reserve, when having met flat road surface dynamic property demand, obviously improved car load fuel economy.
Change traditional Slope Transducer application process, binding engine management system and ECU control policy, realize more excellent vehicle power and economy.Increase the compensation of gradient numerical value-engine torque, in calibration software and nominal data, set up the engine torque compensation rate corresponding with the gradient, increase moment of torsion output now.Increase the compensation of gradient numerical value-engine target idling, in calibration software and nominal data, set up the engine target idling compensation rate corresponding with the gradient, improve the basis of car load dynamic property.Increase gradient numerical value-throttle response compensating factor, in calibration software and nominal data, set up the throttle response compensating factor corresponding with the gradient, improve engine throttle speed of response now.
The compensation method that utilizes Slope Transducer to adjust car load power relates generally to Slope Transducer, engine control module assembly ECU, engine management system actr as electronic throttle etc., wherein in ECU, has comprised control logic and has controlled the integrated of software.When automobile is during for gradient road surface, ECU identifies gradient numerical value now by the reading of Slope Transducer, then ECU is according to the control method writing in advance, from moment of torsion output compensation rate, target idling compensation rate, Das Gaspedal response three aspects of compensating factor, carry out the power output compensation of gradient operating mode, to guarantee vehicles dynamic performance now.
This invention has solved same set of manual driving system speed ratio scheme, meet region of no relief power and economy time, mountain area client or climbing operating mode car load under power; Or meet mountain area client or climbing operating mode dynamic property time, flat road surface travel and complete-vehicle oil consumption test cycle in the high problem of oil consumption.
Above four innovations combined action under, guaranteed that manual vehicle, under same set of transmission speed ratio scheme, had both guaranteed Plain and complete-vehicle oil consumption test data, the car load dynamic property while having improved again mountain area or climbing operating mode, reduce complete-vehicle oil consumption declared value and client's complaint, improve product competitiveness.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. utilize Slope Transducer to adjust a compensation method for car load power, it is characterized in that, described compensation method comprises the following steps:
When A, Vehicle Driving Cycle, Slope Transducer detects the road surface of exercising in real time;
B, Slope Transducer will detect data transfer electric signal transmission and process to ECU;
C, ECT control power compensation according to Gradient increases car load power.
2. compensation method according to claim 1, is characterized in that, described power compensation comprises moment of torsion output compensation rate, target idling compensation rate and throttle torque responsive compensation rate;
Described moment of torsion output compensation rate, the moment of torsion output when improving gradient road surface, on the basis of original moment of torsion output valve, increases the moment of torsion of certain numerical value, and the driving engine improving now is finally exported total torque value;
Described target idling compensation rate, for promoting target idling numerical value, prevents that the improper engine speed that causes of driver's operation from dropping too much, causes power wretched insufficiency or flame-out;
Described throttle torque responsive compensation rate, for accelerating throttle response, improves the torque responsive speed of driving engine.
3. compensation method according to claim 2, is characterized in that, described moment of torsion output compensation rate is global variable, according to the actual grade value of road gradient, by software, is tabled look-up and is determined moment of torsion output compensation rate with the mode of interpolation calculation.
4. compensation method according to claim 3, is characterized in that, described target idling compensation rate is by increasing engine speed to the mode of parking target idling under gradient road surface and driving target idling.
5. compensation method according to claim 4, is characterized in that, described throttle torque responsive compensation rate is carried out correction-compensation by gradient numerical value and engine speed to existing throttle torque responsive coefficient.
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| CN201410317032.4A CN104071152A (en) | 2014-07-04 | 2014-07-04 | Compensation method for finished automobile power adjustment utilizing gradient sensor |
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| CN201410317032.4A CN104071152A (en) | 2014-07-04 | 2014-07-04 | Compensation method for finished automobile power adjustment utilizing gradient sensor |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184208A (en) * | 2015-05-07 | 2016-12-07 | 比亚迪股份有限公司 | The control method of automobile up slope traveling and system |
| CN106696762A (en) * | 2015-11-13 | 2017-05-24 | 北汽福田汽车股份有限公司 | Motor torque control method and system for BEV (battery electrical vehicle), and battery electrical vehicle |
| CN107468437A (en) * | 2017-07-18 | 2017-12-15 | 常英梅 | Slope climbing type extended pattern wheelchair |
| CN107813826A (en) * | 2017-10-12 | 2018-03-20 | 潍柴动力股份有限公司 | A kind of intelligent accelerator control method based on road spectrum information |
| CN109291930A (en) * | 2018-09-28 | 2019-02-01 | 上汽通用五菱汽车股份有限公司 | Speed adjusting method, automobile and the readable storage medium storing program for executing of autonomous driving vehicle |
| CN110550031A (en) * | 2018-05-30 | 2019-12-10 | 广州汽车集团股份有限公司 | Vehicle ramp driving control method and corresponding electronic control unit |
| CN111801520A (en) * | 2018-03-07 | 2020-10-20 | 捷豹路虎有限公司 | Control of a vehicle with an automatic transmission to compensate for ambient air density |
| CN112537209A (en) * | 2019-09-20 | 2021-03-23 | 比亚迪股份有限公司 | Vehicle, remote control driving method thereof and storage medium |
| CN112622641A (en) * | 2021-01-07 | 2021-04-09 | 广西宁达汽车科技有限公司 | Vehicle control method, device and system |
| CN112757907A (en) * | 2021-01-04 | 2021-05-07 | 东风柳州汽车有限公司 | Intelligent vehicle control method, device, equipment and storage medium for electric vehicle |
| CN112810456A (en) * | 2021-01-22 | 2021-05-18 | 北京新能源汽车技术创新中心有限公司 | Electric automobile slope-sliding prevention control method and system and electric automobile |
| CN114103658A (en) * | 2021-11-26 | 2022-03-01 | 重庆金康赛力斯新能源汽车设计院有限公司 | Range extending control method and device |
| CN114810388A (en) * | 2021-01-27 | 2022-07-29 | 长城汽车股份有限公司 | Method and device for controlling idle speed of engine, medium, equipment and vehicle |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184208B (en) * | 2015-05-07 | 2018-09-11 | 比亚迪股份有限公司 | The control method and system of automobile up slope traveling |
| CN106184208A (en) * | 2015-05-07 | 2016-12-07 | 比亚迪股份有限公司 | The control method of automobile up slope traveling and system |
| CN106696762A (en) * | 2015-11-13 | 2017-05-24 | 北汽福田汽车股份有限公司 | Motor torque control method and system for BEV (battery electrical vehicle), and battery electrical vehicle |
| CN107468437A (en) * | 2017-07-18 | 2017-12-15 | 常英梅 | Slope climbing type extended pattern wheelchair |
| CN107813826A (en) * | 2017-10-12 | 2018-03-20 | 潍柴动力股份有限公司 | A kind of intelligent accelerator control method based on road spectrum information |
| CN111801520A (en) * | 2018-03-07 | 2020-10-20 | 捷豹路虎有限公司 | Control of a vehicle with an automatic transmission to compensate for ambient air density |
| US11261958B2 (en) | 2018-03-07 | 2022-03-01 | Jaguar Land Rover Limited | Control of a vehicle having an automatic transmission to compensate for ambient air density |
| CN110550031B (en) * | 2018-05-30 | 2020-12-08 | 广州汽车集团股份有限公司 | Vehicle ramp driving control method and corresponding electronic control unit |
| CN110550031A (en) * | 2018-05-30 | 2019-12-10 | 广州汽车集团股份有限公司 | Vehicle ramp driving control method and corresponding electronic control unit |
| CN109291930A (en) * | 2018-09-28 | 2019-02-01 | 上汽通用五菱汽车股份有限公司 | Speed adjusting method, automobile and the readable storage medium storing program for executing of autonomous driving vehicle |
| CN112537209A (en) * | 2019-09-20 | 2021-03-23 | 比亚迪股份有限公司 | Vehicle, remote control driving method thereof and storage medium |
| CN112757907A (en) * | 2021-01-04 | 2021-05-07 | 东风柳州汽车有限公司 | Intelligent vehicle control method, device, equipment and storage medium for electric vehicle |
| CN112622641A (en) * | 2021-01-07 | 2021-04-09 | 广西宁达汽车科技有限公司 | Vehicle control method, device and system |
| CN112622641B (en) * | 2021-01-07 | 2022-11-04 | 广西宁达汽车科技有限公司 | Vehicle control method, device and system |
| CN112810456A (en) * | 2021-01-22 | 2021-05-18 | 北京新能源汽车技术创新中心有限公司 | Electric automobile slope-sliding prevention control method and system and electric automobile |
| CN114810388A (en) * | 2021-01-27 | 2022-07-29 | 长城汽车股份有限公司 | Method and device for controlling idle speed of engine, medium, equipment and vehicle |
| CN114103658A (en) * | 2021-11-26 | 2022-03-01 | 重庆金康赛力斯新能源汽车设计院有限公司 | Range extending control method and device |
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Application publication date: 20141001 |