CN107650694A - Improve the control method of extended-range electric vehicle NVH performances - Google Patents
Improve the control method of extended-range electric vehicle NVH performances Download PDFInfo
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- CN107650694A CN107650694A CN201710905385.XA CN201710905385A CN107650694A CN 107650694 A CN107650694 A CN 107650694A CN 201710905385 A CN201710905385 A CN 201710905385A CN 107650694 A CN107650694 A CN 107650694A
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- Prior art keywords
- increasing unit
- distance increasing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
- B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
-
- 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
- Y02T10/62—Hybrid vehicles
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of control method for improving extended-range electric vehicle NVH performances, the process of its control method is：Initialization；Judge current vehicle operation pattern；Under different mode of operations, start distance increasing unit according to the starting conditions of setting；Or the starting conditions according to setting, distance increasing unit automatic start.Using above-mentioned technical proposal, VCU controls the start and stop of extended-range electric vehicle according to vehicle speed and SOC value, in the case where meeting vehicle demand, meet not start distance increasing unit when low speed and high SOC value as far as possible, and by optimization with sacrificing part economy, the operating point of range extender system is set to be operated in NVH points of good performance, finally realize that vehicle range extender system when low speed is run is not run, distance increasing unit engine is run in economic work point when middling speed is run, range extender system is run in high speed operating point during high-speed cruising, to meet the requirement of driver's driver comfort, improve the NVH performances of vehicle.
Description
Technical field
The invention belongs to the technical field of new energy vehicle, is related to extended-range electric vehicle Automotive Applied Technology.More specifically,
The present invention relates to a kind of control method for improving extended-range electric vehicle NVH performances.
Background technology
As the representative of new-energy automobile, the prospect of pure electric automobile is had an optimistic view of extensively, but due to current battery technology still
Not overripened, its cost is too high, and capacity density is smaller, and course continuation mileage is short, the reason such as electrically-charging equipment imperfection, so pure electronic vapour
Car only uses in the short-distance transport of city at present.
In order to effectively solve the problems of pure electric automobile, extended-range electric vehicle arises at the historic moment, extended-range electric vehicle
It is that engine is arranged on electric car.But the NVH performances of pure electric vehicle will be substantially better than gasoline car, and extended-range electric vehicle
It is that engine is arranged on electric car, causes extended-range electric vehicle NVH degradations.
At present, extended-range electric vehicle control strategy is to meet based on vehicle power demand, can seldom take into account NVH performances.
Therefore, how to lift extended-range electric vehicle NVH performances is to influence a great problem of extended-range electric vehicle industrialization.
The content of the invention
The present invention provides a kind of control method of extended-range electric vehicle, and the purpose is to improve the NVH of extended-range electric vehicle
Energy.
To achieve these goals, the technical scheme taken of the present invention is：
The control method of the raising extended-range electric vehicle NVH performances of the present invention, its process are：
Initialization；
Judge current vehicle operation pattern；
Under different mode of operations, start distance increasing unit according to the starting conditions of setting；
Or the starting conditions according to setting, distance increasing unit automatic start.
Described mode of operation includes EV mode of operations, AUTO mode of operations and DRIVE mode of operations.
Described EV mode of operations are most economical pattern, suitable for city operating mode；AUTO mode of operations are applied to outskirts of a town work
Condition, distance increasing unit are in economic work pattern；DRIVE patterns are applied to highway operating mode.
When being switched to EV mode of operations, during SOC ＞ 30%, distance increasing unit does not work；Only when battery SOC ＜ 30% and car
Fast ＞ 30Km/h, or during SOC ＜ 20%, distance increasing unit starts, driving vehicle traveling.
When being switched to AUTO patterns, when meeting SOC ＜ 50% and vehicle speed ＞ 60Km/h, distance increasing unit is opened；Work as SOC
During ＜ 30%, distance increasing unit starts automatically.
When being switched to DRIVE patterns, when meeting SOC ＜ 70% and vehicle speed ＞ 90Km/h, distance increasing unit starts；When
During SOC ＜ 50%, range extender system starts automatically, to meet vehicle dynamic property demand.
The present invention uses above-mentioned technical proposal, and VCU controls the start and stop of extended-range electric vehicle according to vehicle speed and SOC value,
In the case where meeting vehicle demand, meet not start distance increasing unit when low speed and high SOC value as far as possible, and pass through optimization and sacrifice portion
Divide economy, the operating point of range extender system is operated in NVH points of good performance, finally realize vehicle when low speed is run
Range extender system is not run, distance increasing unit engine distance increasing unit system in economic work point operation, high-speed cruising when middling speed is run
System is run in high speed operating point, to meet the requirement of driver's driver comfort, improves the NVH performances of vehicle.
Brief description of the drawings
Accompanying drawing content is briefly described as follows：
Fig. 1 is the schematic diagram for the control method that the present invention improves extended-range electric vehicle NVH performances.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the invention is made further details of
Illustrate, to help those skilled in the art to have more complete, accurate and deep reason to inventive concept of the invention, technical scheme
Solution.
NVH performances：The english abbreviation of noise, vibration and sound vibration roughness (Noise, Vibration, Harshness), fit
For the evaluation to vehicle riding comfort；
VCU(Vehicle control unit)：Whole-control system, it is applied to new-energy automobile, realizes vehicle control
The core electron control unit of decision-making processed；
SOC：Battery dump energy；
EV mode of operations：City operating mode operational mode；AUTO mode of operations：Outskirts of a town operating mode operational mode；DRIVE Working moulds
Formula：Highway regime mode.
As shown in figure 1, it is the schematic diagram for the control method that the present invention improves extended-range electric vehicle NVH performances.
The present invention is applicable all extended-range electric vehicles.The present invention is that VCU controls extended-range according to vehicle speed and SOC value
The start and stop of electric car, in the case where meeting vehicle demand, meet not start distance increasing unit when low speed and high SOC value as far as possible, and it is logical
Cross optimization makes the operating point of range extender system be operated in NVH points of good performance with sacrificing part economy, finally realizes whole
Car range extender system when low speed is run is not run, and distance increasing unit engine is run in economic work point when middling speed is run, at a high speed
Range extender system is run in high speed operating point during operation, to meet the requirement of driver's driver comfort.
The defects of in order to overcome prior art, realize the goal of the invention for the NVH performances for improving extended-range electric vehicle, the present invention
The technical scheme taken is：
The control method of the raising extended-range electric vehicle NVH performances of the present invention, the process of described control method are：
Initialization；
Judge current vehicle operation pattern；
Under different mode of operations, start distance increasing unit according to the starting conditions of setting；
Or the starting conditions according to setting, distance increasing unit automatic start.
It is contemplated that by gathering vehicle speed and SOC value, the start and stop of distance increasing unit are controlled, are transported with reaching vehicle in low speed
Distance increasing unit is not turned on during row or distance increasing unit is run in NVH points of good performance in slow-speed of revolution operation, middling speed, improves driving comfort
Property.
Described mode of operation includes EV mode of operations, AUTO mode of operations and DRIVE mode of operations.
Described here starts distance increasing unit according to the starting conditions of setting, refers to the operation that driver is carried out to system；Increase
Journey device automatic start is that system sends signal automatically, starts distance increasing unit.
Described EV mode of operations are most economical pattern, suitable for city operating mode；AUTO mode of operations are applied to outskirts of a town work
Condition, distance increasing unit are in economic work pattern；DRIVE patterns are applied to highway operating mode.
After vehicle power-up initializing, Current vehicle mode of operation is first determined whether, EV mode of operations are most economical pattern, are applicable
In city operating mode；AUTO mode of operations, economic work pattern is in suitable for outskirts of a town operating mode distance increasing unit；DRIVE patterns are applied to
Highway operating mode.
When being switched to EV mode of operations, SOC ＞ 30% (general battery SOC ＞ 30% can meet motor full power operation)
When, distance increasing unit does not work；Only as battery SOC ＜ 30% and speed ＞ 30Km/h, or during SOC ＜ 20%, distance increasing unit rises automatically
It is dynamic, driving vehicle traveling, the benefit of such a control model：Limited using speed condition, avoiding distance increasing unit from being started in low speed influences
Vehicle NVH performances；Started during SOC ＜ 20%, avoid battery consumption excessive, influence battery life, realized that battery is shallow and fill shallow put
Purpose.
When being switched to AUTO patterns, when meeting SOC ＜ 50% and vehicle speed ＞ 60Km/h, distance increasing unit is opened；Now
It is preferential to ensure that distance increasing unit is operated in the economic and good features of NVH, and under such a pattern, not only dynamic property is strong but also NVH for vehicle
Can be excellent；As SOC ＜ 30%, distance increasing unit starts automatically, so may be implemented in the case of meeting vehicle dynamic property, as far as possible
Preferential consumption electric energy.
When being switched to DRIVE patterns, when meeting SOC ＜ 70% and vehicle speed ＞ 90Km/h, distance increasing unit starts, now
Vehicle speed is higher and vehicle demand power is larger, when distance increasing unit works in higher rotation speed operating point, noise impression and unobvious.
To meet vehicle dynamic property demand, as SOC ＜ 50%, range extender system starts automatically, to meet vehicle dynamic property demand.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that present invention specific implementation is not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (6)
- A kind of 1. control method for improving extended-range electric vehicle NVH performances, it is characterised in that：The process of described control method For：Initialization；Judge current vehicle operation pattern；Under different mode of operations, start distance increasing unit according to the starting conditions of setting；Or the starting conditions according to setting, distance increasing unit automatic start.
- 2. according to the control method of the raising extended-range electric vehicle NVH performances described in claim 1, it is characterised in that：Described Mode of operation includes EV mode of operations, AUTO mode of operations and DRIVE mode of operations.
- 3. according to the control method of the raising extended-range electric vehicle NVH performances described in claim 2, it is characterised in that：Described EV mode of operations are most economical pattern, suitable for city operating mode；AUTO mode of operations are applied to outskirts of a town operating mode, and distance increasing unit is in warp Ji mode of operation；DRIVE patterns are applied to highway operating mode.
- 4. according to the control method of the raising extended-range electric vehicle NVH performances described in claim 2, it is characterised in that：Work as switching During to EV mode of operations, SOC ＞ 30%, distance increasing unit does not work；Only as battery SOC ＜ 30% and speed ＞ 30Km/h, or SOC During ＜ 20%, distance increasing unit starts, driving vehicle traveling.
- 5. according to the control method of the raising extended-range electric vehicle NVH performances described in claim 1, it is characterised in that：Work as switching During to AUTO patterns, when meeting SOC ＜ 50% and vehicle speed ＞ 60Km/h, distance increasing unit is opened；As SOC ＜ 30%, increase journey Device starts automatically.
- 6. according to the control method of the raising extended-range electric vehicle NVH performances described in claim 1, it is characterised in that：Work as switching During to DRIVE patterns, when meeting SOC ＜ 70% and vehicle speed ＞ 90Km/h, distance increasing unit starts；As SOC ＜ 50%, increase journey Device system starts automatically, to meet vehicle dynamic property demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710905385.XA CN107650694A (en) | 2017-09-29 | 2017-09-29 | Improve the control method of extended-range electric vehicle NVH performances |
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| CN201710905385.XA CN107650694A (en) | 2017-09-29 | 2017-09-29 | Improve the control method of extended-range electric vehicle NVH performances |
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| CN201710905385.XA Pending CN107650694A (en) | 2017-09-29 | 2017-09-29 | Improve the control method of extended-range electric vehicle NVH performances |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126646A (en) * | 2019-05-13 | 2019-08-16 | 奇瑞新能源汽车技术有限公司 | A kind of the distance increasing unit control method and its electric car of extended-range electric vehicle |
| CN110370942A (en) * | 2019-07-02 | 2019-10-25 | 四川野马汽车股份有限公司 | A kind of stroke-increasing electric automobile control method and device |
| CN110667590A (en) * | 2019-09-26 | 2020-01-10 | 浙江吉利新能源商用车集团有限公司 | Starting mode control method and device of range extender |
| CN112706605A (en) * | 2020-12-31 | 2021-04-27 | 天津易众腾动力技术有限公司 | Method for reducing NVH (noise, vibration and harshness) at low speed in range-extended electric automobile |
| CN112959996A (en) * | 2019-12-12 | 2021-06-15 | 北京车和家信息技术有限公司 | Vehicle control method and device and vehicle |
| CN113044034A (en) * | 2019-12-27 | 2021-06-29 | 北京车和家信息技术有限公司 | Vehicle range extender control method and device |
| CN113370844A (en) * | 2021-07-22 | 2021-09-10 | 重庆长安新能源汽车科技有限公司 | Range extender start-stop control system and method for range extender electric vehicle |
| CN114655035A (en) * | 2020-12-23 | 2022-06-24 | 北汽福田汽车股份有限公司 | Range extender control method and device, vehicle, storage medium and electronic equipment |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126646A (en) * | 2019-05-13 | 2019-08-16 | 奇瑞新能源汽车技术有限公司 | A kind of the distance increasing unit control method and its electric car of extended-range electric vehicle |
| CN110370942A (en) * | 2019-07-02 | 2019-10-25 | 四川野马汽车股份有限公司 | A kind of stroke-increasing electric automobile control method and device |
| CN110667590A (en) * | 2019-09-26 | 2020-01-10 | 浙江吉利新能源商用车集团有限公司 | Starting mode control method and device of range extender |
| CN110667590B (en) * | 2019-09-26 | 2021-11-09 | 浙江吉利新能源商用车集团有限公司 | Starting mode control method and device of range extender |
| CN112959996A (en) * | 2019-12-12 | 2021-06-15 | 北京车和家信息技术有限公司 | Vehicle control method and device and vehicle |
| CN113044034A (en) * | 2019-12-27 | 2021-06-29 | 北京车和家信息技术有限公司 | Vehicle range extender control method and device |
| CN113044034B (en) * | 2019-12-27 | 2022-07-15 | 北京车和家信息技术有限公司 | Vehicle range extender control method and device |
| CN114655035A (en) * | 2020-12-23 | 2022-06-24 | 北汽福田汽车股份有限公司 | Range extender control method and device, vehicle, storage medium and electronic equipment |
| CN114655035B (en) * | 2020-12-23 | 2023-09-08 | 北汽福田汽车股份有限公司 | Range extender control method and device, vehicle, storage medium and electronic equipment |
| CN112706605A (en) * | 2020-12-31 | 2021-04-27 | 天津易众腾动力技术有限公司 | Method for reducing NVH (noise, vibration and harshness) at low speed in range-extended electric automobile |
| CN112706605B (en) * | 2020-12-31 | 2022-04-01 | 天津易众腾动力技术有限公司 | Method for reducing NVH (noise, vibration and harshness) at low speed in range-extended electric automobile |
| CN113370844A (en) * | 2021-07-22 | 2021-09-10 | 重庆长安新能源汽车科技有限公司 | Range extender start-stop control system and method for range extender electric vehicle |
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Effective date of registration: 20180509 Address after: 241000 Huajing South Road, Yijiang high tech Industrial Development Zone, Wuhu, Anhui, 226 Applicant after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241009 Changchun Road, Wuhu economic and Technological Development Zone, Wuhu, Anhui, 8 Applicant before: Saic Chery Automobile Co., Ltd. |
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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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Application publication date: 20180202 |