CN109895637A - A kind of control method promoting electric car cruising ability - Google Patents
A kind of control method promoting electric car cruising ability Download PDFInfo
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- CN109895637A CN109895637A CN201910233459.9A CN201910233459A CN109895637A CN 109895637 A CN109895637 A CN 109895637A CN 201910233459 A CN201910233459 A CN 201910233459A CN 109895637 A CN109895637 A CN 109895637A
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- China
- Prior art keywords
- accelerator pedal
- pedal aperture
- electric car
- control method
- cruising ability
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Present invention discloses a kind of control methods for promoting electric car cruising ability: step 1 obtains current vehicle speed and accelerator pedal aperture in real time；Step 2, be preset with speed, accelerator pedal aperture, Motor torque related table, tabled look-up according to current vehicle speed and accelerator pedal aperture and obtain current motor torque；Step 3 controls motor work according to the Motor torque of lookup.The present invention is by reading accelerator pedal aperture, reading current vehicle speed, and according to the torque of setting and accelerator pedal aperture-speed relationship, under lesser accelerator pedal aperture, from drive mode it is smooth into power generation mode；The process that the technical solution enters power generation mode from drive mode is more smooth, can make the more stable regulation speed of driver, to improve driving, reduce energy loss.
Description
Technical field
The present invention relates to electric car field, in particular to a kind of electric automobile whole energy-saving control method.
Background technique
Electric car has braking energy recovering function at present, and electric car can be with recoverer compared with traditional fuel vehicle
Divide the energy loss of braking process.
But most of vehicle enters the condition of energy regenerating are as follows: release the gas pedal enters Brake energy recovery, controls
Logic processed is relatively simple.Thus two problems: the 1, moment of release the gas pedal are brought, motor enters power generation by drive mode
Mode, variation is more lofty, causes speed unstable and drive to feel bad；2, braking energy returns after Some vehicles release the gas pedal
Receive too strong, vehicle deceleration is expected beyond driver, cause driver need again bend the throttle to keep speed, Brake Energy
It is returned to driving energy after amount recycling, energy conversion and transmittance process during which will cause energy loss.
Summary of the invention
The present invention solves driving during electric car release the gas pedal enters energy regenerating and feels bad and cause energy
The problem of amount loss, realizes a kind of control method for promoting electric car cruising ability and comfort.
To achieve the goals above, a kind of the technical solution adopted by the present invention are as follows: control for promoting electric car cruising ability
Method processed:
Step 1 obtains current vehicle speed and accelerator pedal aperture in real time；
Step 2, be preset with speed, accelerator pedal aperture, Motor torque related table, stepped on according to current vehicle speed and acceleration
Plate aperture, which is tabled look-up, obtains current motor torque；
Step 3 controls motor work according to the Motor torque of lookup.
In the related table, preset principle 1: under same speed, accelerator pedal aperture is greater than the set value, motor Working mould
Formula is drive mode, and torque is positive.
In the default principle 1, accelerator pedal aperture is bigger, and driving torque is bigger.
In the related table, preset principle 2: under same speed, accelerator pedal aperture is less than setting value, motor Working mould
Formula is power generation mode, and torque is negative.
In the default principle 2, accelerator pedal aperture is smaller, and recycling torque is bigger.
In the related table, preset principle 3: under different speeds, accelerator pedal aperture setting value is different, accelerates higher add
Speed pedal setting value is higher.
The related table meets default principle 1, default principle 2 and default principle 3 simultaneously.
The present invention is opened by reading accelerator pedal aperture, reading current vehicle speed according to the torque and accelerator pedal of setting
Degree-speed relationship, under lesser accelerator pedal aperture, the entrance power generation mode smooth from drive mode；The technical side
The process that case enters power generation mode from drive mode is more smooth, can make the more stable regulation speed of driver, to improve
Driving reduces energy loss.
Detailed description of the invention
The content of width attached drawing every in description of the invention expression is briefly described below:
Fig. 1 is the control flow chart for promoting electric car cruising ability.
Specific embodiment
As shown in Figure 1, the control method for promoting electric car cruising ability includes:
Step 1, current accelerator pedal aperture is read in real time, reads current current vehicle speed in real time.
Step 2, required torque is searched according to the accelerator pedal-speed.
Torque is to be set in advance with accelerator pedal-speed relationship, setting strategy are as follows:
1, under same speed, accelerator pedal aperture is greater than the set value, and electrical machine working mode is drive mode, and torque is positive；
And accelerator pedal aperture is bigger, driving torque is bigger；
2, under same speed, accelerator pedal aperture is less than setting value, and electrical machine working mode is power generation mode, and torque is negative；
And accelerator pedal aperture is smaller, recycling torque is bigger；
3, under different speeds, accelerator pedal aperture setting value is different, accelerates higher accelerator pedal setting value higher.
Step 4, it is worked according to the torque control motors found, with regulation speed.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.
Claims (7)
1. a kind of control method for promoting electric car cruising ability, it is characterised in that:
Step 1 obtains current vehicle speed and accelerator pedal aperture in real time；
Step 2, be preset with speed, accelerator pedal aperture, Motor torque related table, opened according to current vehicle speed and accelerator pedal
Degree, which is tabled look-up, obtains current motor torque；
Step 3 controls motor work according to the Motor torque of lookup.
2. the control method according to claim 1 for promoting electric car cruising ability, it is characterised in that: the relation table
In lattice, preset principle 1: under same speed, accelerator pedal aperture is greater than the set value, and electrical machine working mode is drive mode, torque
It is positive.
3. the control method according to claim 2 for promoting electric car cruising ability, it is characterised in that: the default original
Then in 1, accelerator pedal aperture is bigger, and driving torque is bigger.
4. the control method according to claim 1,2 or 3 for promoting electric car cruising ability, it is characterised in that: described
In related table, preset principle 2: under same speed, accelerator pedal aperture is less than setting value, and electrical machine working mode is power generation mould
Formula, torque are negative.
5. the control method according to claim 4 for promoting electric car cruising ability, it is characterised in that: the default original
Then in 2, accelerator pedal aperture is smaller, and recycling torque is bigger.
6. the control method according to claim 5 for promoting electric car cruising ability, it is characterised in that: the relation table
In lattice, preset principle 3: under different speeds, accelerator pedal aperture setting value is different, accelerates higher accelerator pedal setting value higher.
7. the control method according to claim 6 for promoting electric car cruising ability, it is characterised in that: the relation table
Lattice meet default principle 1, default principle 2 and default principle 3 simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233459.9A CN109895637A (en) | 2019-03-26 | 2019-03-26 | A kind of control method promoting electric car cruising ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233459.9A CN109895637A (en) | 2019-03-26 | 2019-03-26 | A kind of control method promoting electric car cruising ability |
Publications (1)
| Publication Number | Publication Date |
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| CN109895637A true CN109895637A (en) | 2019-06-18 |
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| CN201910233459.9A Pending CN109895637A (en) | 2019-03-26 | 2019-03-26 | A kind of control method promoting electric car cruising ability |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525234A (en) * | 2019-10-08 | 2019-12-03 | 北京车和家信息技术有限公司 | Control method, device and the entire car controller of motor output torque |
| CN113547930A (en) * | 2021-07-30 | 2021-10-26 | 重庆长安新能源汽车科技有限公司 | Intelligent energy-saving control method and device for following running of pure electric vehicle and vehicle |
| CN114056113A (en) * | 2020-08-09 | 2022-02-18 | 广汽埃安新能源汽车有限公司 | Energy-saving mode control method and system for electric automobile |
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- 2019-03-26 CN CN201910233459.9A patent/CN109895637A/en active Pending
Patent Citations (6)
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| GB2368664A (en) * | 2000-10-11 | 2002-05-08 | Ford Global Tech Inc | "Engine braking feel" for an electric motor of a hybrid powertrain |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525234A (en) * | 2019-10-08 | 2019-12-03 | 北京车和家信息技术有限公司 | Control method, device and the entire car controller of motor output torque |
| CN110525234B (en) * | 2019-10-08 | 2021-10-08 | 北京车和家信息技术有限公司 | Control method and device for motor output torque and vehicle control unit |
| CN114056113A (en) * | 2020-08-09 | 2022-02-18 | 广汽埃安新能源汽车有限公司 | Energy-saving mode control method and system for electric automobile |
| CN113547930A (en) * | 2021-07-30 | 2021-10-26 | 重庆长安新能源汽车科技有限公司 | Intelligent energy-saving control method and device for following running of pure electric vehicle and vehicle |
| CN113547930B (en) * | 2021-07-30 | 2022-06-14 | 重庆长安新能源汽车科技有限公司 | Intelligent energy-saving control method and device for following running of pure electric vehicle and vehicle |
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| CB02 | Change of applicant information |
Address after: 241000 No. 226 Jin Hua Nan Road, Yijiang hi tech Industrial Development Zone, Anhui, Wuhu Applicant after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 No. 226 Jin Hua Nan Road, Yijiang hi tech Industrial Development Zone, Anhui, Wuhu Applicant before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190618 |
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| RJ01 | Rejection of invention patent application after publication |