CN107826100A - A kind of intelligent accelerator control method based on car weight - Google Patents
A kind of intelligent accelerator control method based on car weight Download PDFInfo
- Publication number
- CN107826100A CN107826100A CN201710945101.XA CN201710945101A CN107826100A CN 107826100 A CN107826100 A CN 107826100A CN 201710945101 A CN201710945101 A CN 201710945101A CN 107826100 A CN107826100 A CN 107826100A
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- China
- Prior art keywords
- map
- vehicle
- car weight
- ecu
- torsion
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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
- 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
-
- 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
- B60W40/12—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 parameters of the vehicle itself, e.g. tyre models
- B60W40/13—Load or weight
Abstract
The invention discloses a kind of intelligent accelerator control method based on car weight, comprise the following steps：Vehicle position information is obtained, and is sent to common rail row；Common rail is about to vehicle position information and Road spectrum information is sent to ECU；ECU determines the gradient of vehicle position, the rotating speed moment of torsion MAP according to corresponding to determining the gradient, MAP correction factors is determined according to car weight according to the vehicle position information and Road spectrum information of acquisition；ECU judges whether to need to switch MAP according to vehicle accelerator rate of change, when handover is needed, switches MAP and moment of torsion is modified；Vehicle accelerator is controlled according to moment of torsion after amendment.The present invention can adjust engine output torque according to car weight and Road spectrum information, in level road or vehicle underloading, engine speed and moment of torsion are limited, engine is operated in most economical region as far as possible, complete-vehicle oil consumption is reduced, and solves the problems, such as that user causes oil consumption high because driving habit is bad.
Description
Technical field
The present invention relates to technical field of vehicle, and in particular to a kind of intelligent accelerator control method based on car weight.
Background technology
Increasingly favored by masses with the reinforcement of environmental consciousness, electronic automobile with the improvement of living standards, in order to
The different driving habits of different drivers are adapted to, existing automobile can configure several different step on inside electronic control unit ECU
Plate torque characteristics, the voltage signal related to gas pedal aperture are connected to ECU, and ECU turns round according to gas pedal aperture and pedal
Square characteristic obtains engine target moment of torsion, so as to realize the control to engine torque.Above-mentioned several different pedaling torques are special
Property represent sports type, economical and general modfel etc. respectively, driver can select one of which driving model according to driving habit,
Now pedaling torque characteristic is fixed that ECU obtains moment of torsion according to gas pedal aperture in vehicle travel process, it is impossible to root
It is adjusted according to car weight and Road spectrum information, therefore the problem of oil consumption is high can be produced when driver's driving habit is bad.
The content of the invention
In order to overcome above-mentioned deficiency, it is an object of the invention to provide one kind can according to road grade select MAP, and according to
The intelligent accelerator control method based on car weight that car weight is modified to moment of torsion.
The present invention realizes that the scheme of purpose is as follows：A kind of intelligent accelerator control method based on car weight, it is characterised in that bag
Include following steps：
(1) vehicle position information is obtained, and is sent to common rail row；
(2) common rail is about to vehicle position information and Road spectrum information is sent to ECU；
(3) several MAPs built in ECU, ECU determine vehicle institute according to the vehicle position information and Road spectrum information of acquisition
The gradient in position, the then MAP according to corresponding to determining the gradient, while ECU determines MAP correction factors according to car weight；
(4) ECU obtains vehicle accelerator rate of change, then judges whether to need to switch MAP according to vehicle accelerator rate of change, when need
When switching, ECU is switched it to MAP corresponding to the gradient of vehicle position, and obtains moment of torsion according to MAP, then
Moment of torsion is modified by MAP correction factors, obtains moment of torsion after amendment；
(5) vehicle accelerator is controlled according to moment of torsion after the amendment.
The common rail row, is the control function using electronic control system, the collection vehicle and engine intelligent of release
Manage in the control system of one, by load information module on the engine, carry out remote information collection and intelligent control.
Preferably；Engine speed and gas pedal aperture in MAP obtain moment of torsion, are then multiplied by moment of torsion
MAP correction factors are modified.
Preferably；The acquisition modes of the vehicle position information are completed by vehicle GPS, built in the common rail row
Road spectrum information.
Preferably；Several MAPs built in the ECU, wherein the corresponding range of grade of each MAP, the ECU roots
According to the gradient of vehicle position determine corresponding to range of grade, the then MAP according to corresponding to determining range of grade.
Preferably；The MAP is to be obtained according to the vehicle of the vehicle by testing.
Preferably；Real-time car weight measuring system built in the ECU, according to the gradient of vehicle position, measure vehicle weight
Amount, the MAP correction factors table of comparisons built in the ECU, MAP amendments are obtained by inquiring about the MAP correction factors table of comparisons according to car weight
Coefficient, the MAP correction factors table of comparisons include several car weights setting numerical value, each corresponding MAP of car weight setting numerical value
Correction factor, if car weight between two car weights set numerical value, according to car weight between two car weights set numerical value ratio meter
MAP correction factors corresponding to calculation.
Preferably；The MAP correction factors table of comparisons is to be obtained according to the vehicle and car weight of the vehicle by testing.
Preferably；Throttle rate of change calibration value built in the ECU, when throttle rate of change is less than throttle rate of change calibration value
When, former MAP is performed, when throttle rate of change is more than throttle rate of change calibration value, switches MAP.
Preferably；The throttle rate of change calibration value is to be obtained according to the vehicle of the vehicle by testing.
Advantages of the present invention：The present invention can adjust engine output torque according to car weight and Road spectrum information, in vehicle
During traveling, the gradient of vehicle position, root are determined by obtaining vehicle position information and inquiry roads road spectrum information
Different MAPs is selected according to the gradient, when road grade is smaller, from the less MAP of slope, lifts vehicle economy, such as
Fruit load-carrying is smaller, and moment of torsion is modified using less MAP correction factors value, further lifts vehicle economy, while
Solve the problems, such as that oil consumption is high caused by driver driving custom is bad；When the gradient is larger, from the MAP that slope is larger,
Vehicle dynamic property is lifted, if car weight is larger, moment of torsion is modified using larger MAP correction factor values, further lifting
Vehicle dynamic property, vehicle power deficiency is felt during so as to solve the problems, such as driver driving vehicle driving up.
Brief description of the drawings
Fig. 1 is the intelligent throttle control circuit figure of the present invention；
Fig. 2 is the intelligent Throttle Opening Control logic chart of the present invention；
Fig. 3 is MAP in the embodiment of the present invention1、MAP2And MAP3Difference schematic diagram；
Fig. 4 is MAP in the embodiment of the present invention1Figure；
Fig. 5 is MAP in the embodiment of the present invention2Figure；
Fig. 6 is MAP in the embodiment of the present invention3Figure.
Embodiment
Below by specific embodiment, technical scheme is described in further detail.
Embodiment
As depicted in figs. 1 and 2, a kind of intelligent accelerator control method based on car weight, comprises the following steps：
(1) vehicle position information is obtained by vehicle GPS, and is sent to common rail row, Road built in the common rail row is composed
Information；
(2) common rail is about to vehicle position information and Road spectrum information is sent to ECU；
(3) three different MAPs built in ECU, ECU determine car according to the vehicle position information and Road spectrum information of acquisition
The gradient of position, the then MAP according to corresponding to determining the gradient, while ECU determines MAP correction factors according to car weight；
(4) ECU obtains vehicle accelerator rate of change, then judges whether to need to switch MAP according to throttle rate of change, when needs are cut
When changing, ECU is switched it to MAP corresponding to the gradient of vehicle position, and is opened according to engine speed and gas pedal
Degree obtains moment of torsion, and moment of torsion is multiplied by into MAP correction factors and is modified, and obtains moment of torsion after amendment；
(5) vehicle accelerator is controlled according to moment of torsion after the amendment.
The common rail row, is the control function using electronic control system, the collection vehicle and engine intelligent of release
Manage in the control system of one, by load information module on the engine, carry out remote information collection and intelligent control.
Three different MAPs, respectively MAP built in the ECU1、MAP2And MAP3, as shown in Figure 4, Figure 5 and Figure 6, should
Difference between three MAPs is as shown in figure 3, the MAP as seen from Figure 31、MAP2And MAP3Rotating speed-torque curve
Slope increases successively, and the MAP is to be obtained according to the vehicle of the vehicle by testing, and what it was expressed is stepped in different throttles
Moment of torsion and the curve relation figure of engine speed under plate aperture, wherein the corresponding range of grade of each MAP is (such as the institute of table 1
Show), ECU range of grade according to corresponding to determining the gradient of vehicle position, then determined according to range of grade corresponding
MAP.
The corresponding table of the road grade scope of table 1 and MAP
| Range of grade | MAP |
| Gradient ＜ 1.5% | MAP1 |
| 1.5%≤gradient ＜ 3.5% | MAP2 |
| The gradient >=3.5% | MAP3 |
Real-time car weight measuring system built in the ECU, according to the gradient of vehicle position, vehicle weight is measured, it is described
The MAP correction factors table of comparisons (as shown in table 2) built in ECU, the MAP correction factors table of comparisons are the vehicles according to the vehicle
Obtained with car weight by testing, MAP correction factors are obtained by inquiring about the MAP correction factors table of comparisons according to car weight, the MAP is repaiied
The positive coefficient table of comparisons includes several car weights setting numerical value, each corresponding MAP correction factor of car weight setting numerical value, if car weight
Between two car weights set numerical value, then the MAP amendments according to corresponding to car weight ratio calculating between two car weights set numerical value
Coefficient.
The table 2MAP correction factor tables of comparisons
| Car weight (ton) | 0 | 20 | 30 | 40 | 50 | 60 |
| Correction factor | 0.6 | 0.7 | 0.8 | 0.9 | 1 | 1 |
Throttle rate of change calibration value built in the ECU, the throttle rate of change calibration value are the vehicles according to the vehicle
Obtained by testing, when throttle rate of change is less than throttle rate of change calibration value, former MAP is performed, when throttle rate of change is more than
During throttle rate of change calibration value, switch MAP, the calculation formula of the throttle rate of change is：
In formula：δ is throttle rate of change, %/s；Pi+1For the gas pedal aperture of i+1 second, %；PiFor the gas pedal of i-th second
Aperture, %；1 is 1 second, s.
Above-described embodiment is a kind of preferable scheme of the present invention, it is impossible to is interpreted as limitation of the present invention, this area
Those of ordinary skill above-described embodiment can be changed, changed within the scope of the invention, replaced and modification.
Claims (9)
1. a kind of intelligent accelerator control method based on car weight, it is characterised in that comprise the following steps：
（1）Vehicle position information is obtained, and is sent to common rail row；
（2）Common rail is about to vehicle position information and Road spectrum information is sent to ECU；
（3）Several rotating speeds-moment of torsion MAP built in ECU（MAP）, ECU is according to the vehicle position information and Road of acquisition spectrum
Information, the gradient of vehicle position is determined, the then MAP according to corresponding to determining the gradient, while ECU determines according to car weight
MAP correction factors；
（4）ECU obtains vehicle accelerator rate of change, then judges whether to need to switch MAP according to vehicle accelerator rate of change, when
When needing switching, ECU is switched it to MAP corresponding to the gradient of vehicle position, and obtains moment of torsion according to MAP, so
Moment of torsion is modified by MAP correction factors afterwards, obtains moment of torsion after amendment；
（5）Vehicle accelerator is controlled according to moment of torsion after the amendment.
2. the intelligent accelerator control method according to claim 1 based on car weight, it is characterised in that：According in MAP
Engine speed and gas pedal aperture obtain moment of torsion, and moment of torsion then is multiplied by into MAP correction factors and is modified.
3. the intelligent accelerator control method according to claim 1 based on car weight, it is characterised in that：The vehicle location letter
The acquisition modes of breath are completed by vehicle GPS, Road spectrum information built in the common rail row.
4. the intelligent accelerator control method according to claim 1 based on car weight, it is characterised in that：If the ECU is built-in
Dry MAP, wherein the corresponding range of grade of each MAP, the ECU determine corresponding according to the gradient of vehicle position
Range of grade, the then MAP according to corresponding to determining range of grade.
5. the intelligent accelerator control method based on car weight according to claim 1 or 4, it is characterised in that：The MAP is
Obtained according to the vehicle of the vehicle by testing.
6. the intelligent accelerator control method according to claim 1 based on car weight, it is characterised in that：It is real built in the ECU
When car weight measuring system, according to the gradient of vehicle position, measure vehicle weight, MAP correction factors built in the ECU compare
Table, MAP correction factors are obtained by inquiring about the MAP correction factors table of comparisons according to car weight, the MAP correction factors table of comparisons includes
Several car weights set numerical value, each corresponding MAP correction factor of car weight setting numerical value, if car weight sets number in two car weights
Between value, then according to car weight between two car weights set numerical value ratio calculate corresponding to MAP correction factors.
7. the intelligent accelerator control method according to claim 6 based on car weight, it is characterised in that：The MAP amendments system
The number table of comparisons is to be obtained according to the vehicle and car weight of the vehicle by testing.
8. the intelligent accelerator control method according to claim 1 based on car weight, it is characterised in that：It is oily built in the ECU
Door rate of change calibration value, when throttle rate of change is less than throttle rate of change calibration value, performs former MAP, when throttle rate of change is big
When throttle rate of change calibration value, switch MAP.
9. the intelligent accelerator control method according to claim 8 based on car weight, it is characterised in that：The throttle rate of change
Calibration value is to be obtained according to the vehicle of the vehicle by testing.
Priority Applications (1)
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| CN201710945101.XA CN107826100B (en) | 2017-10-12 | 2017-10-12 | A kind of intelligent accelerator control method based on car weight |
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| CN201710945101.XA CN107826100B (en) | 2017-10-12 | 2017-10-12 | A kind of intelligent accelerator control method based on car weight |
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| CN107826100A true CN107826100A (en) | 2018-03-23 |
| CN107826100B CN107826100B (en) | 2019-07-30 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109229106A (en) * | 2018-08-10 | 2019-01-18 | 北汽福田汽车股份有限公司 | The determination method and device of road gradient |
| CN110103709A (en) * | 2019-05-20 | 2019-08-09 | 北京易控智驾科技有限公司 | A kind of control method, system, equipment and the medium of pedal of vehicles aperture |
| CN110143199A (en) * | 2019-05-17 | 2019-08-20 | 南京理工大学 | The adaptive uphill starting control method of commercial vehicle car weight |
| CN110284980A (en) * | 2019-06-28 | 2019-09-27 | 潍柴动力股份有限公司 | A kind of method for correcting oil quantity and device based on main jet angle |
| CN110901414A (en) * | 2019-12-16 | 2020-03-24 | 潍柴动力股份有限公司 | Vehicle torque control method, device and equipment |
| CN112721934A (en) * | 2021-02-01 | 2021-04-30 | 集瑞联合重工有限公司 | Vehicle power mode adjusting method, device and system |
| CN112965447A (en) * | 2021-02-01 | 2021-06-15 | 上海同普电力技术有限公司 | Heavy-load AGV (automatic guided vehicle) large-gradient operation control system |
| CN113119746A (en) * | 2020-01-10 | 2021-07-16 | 上海汽车集团股份有限公司 | Data processing method, device and system for output torque and electronic equipment |
| CN113790106A (en) * | 2021-07-21 | 2021-12-14 | 潍柴动力股份有限公司 | Vehicle driving assisting method and system |
| CN114718743A (en) * | 2022-04-22 | 2022-07-08 | 广西玉柴机器股份有限公司 | Method for carrying out intelligent driving auxiliary control according to vehicle load |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109229106A (en) * | 2018-08-10 | 2019-01-18 | 北汽福田汽车股份有限公司 | The determination method and device of road gradient |
| CN110143199A (en) * | 2019-05-17 | 2019-08-20 | 南京理工大学 | The adaptive uphill starting control method of commercial vehicle car weight |
| CN110143199B (en) * | 2019-05-17 | 2020-09-25 | 南京理工大学 | Commercial vehicle weight self-adaptive hill start control method |
| CN110103709A (en) * | 2019-05-20 | 2019-08-09 | 北京易控智驾科技有限公司 | A kind of control method, system, equipment and the medium of pedal of vehicles aperture |
| CN110284980A (en) * | 2019-06-28 | 2019-09-27 | 潍柴动力股份有限公司 | A kind of method for correcting oil quantity and device based on main jet angle |
| CN110901414A (en) * | 2019-12-16 | 2020-03-24 | 潍柴动力股份有限公司 | Vehicle torque control method, device and equipment |
| CN113119746A (en) * | 2020-01-10 | 2021-07-16 | 上海汽车集团股份有限公司 | Data processing method, device and system for output torque and electronic equipment |
| CN113119746B (en) * | 2020-01-10 | 2022-11-18 | 上海汽车集团股份有限公司 | Data processing method, device and system for output torque and electronic equipment |
| CN112721934A (en) * | 2021-02-01 | 2021-04-30 | 集瑞联合重工有限公司 | Vehicle power mode adjusting method, device and system |
| CN112965447A (en) * | 2021-02-01 | 2021-06-15 | 上海同普电力技术有限公司 | Heavy-load AGV (automatic guided vehicle) large-gradient operation control system |
| CN113790106A (en) * | 2021-07-21 | 2021-12-14 | 潍柴动力股份有限公司 | Vehicle driving assisting method and system |
| CN114718743A (en) * | 2022-04-22 | 2022-07-08 | 广西玉柴机器股份有限公司 | Method for carrying out intelligent driving auxiliary control according to vehicle load |
| CN114718743B (en) * | 2022-04-22 | 2024-02-09 | 广西玉柴机器股份有限公司 | Method for performing intelligent driving auxiliary control according to vehicle load |
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