CN106080267B - A kind of electric automobile torque referee method - Google Patents
A kind of electric automobile torque referee method Download PDFInfo
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- CN106080267B CN106080267B CN201610645060.8A CN201610645060A CN106080267B CN 106080267 B CN106080267 B CN 106080267B CN 201610645060 A CN201610645060 A CN 201610645060A CN 106080267 B CN106080267 B CN 106080267B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of electric automobile torque referee method; first pass through microprocessor collection IGBT temperature igbt_temp; substrate temperature base_temp; motor temperature motor_temp; then igbt_factor, base_factor, motor_factor are obtained respectively and takes its maximum and saves as temperature drop turns round coefficient temp_factor; then limit to obtain maximum allowable requested torque by maximum power; it ensure that temperature sensing and the torque setting of voltage acquisition under normal circumstances; and in sensor fault, motor is protected by nominal torque.
Description
Technical field
The present invention relates to new energy car technical field, particularly a kind of electric automobile torque referee method.
Background technology
To meet electric powered motor and economy, entire car controller generally requires sufficiently large moment of torsion, but drives electricity
The output of machine moment of torsion receives the influence of power of motor, electric machine controller capacity, electric machine controller temperature, motor temperature etc., in order to
Prevent drive system output excessive torque and damage.There is presently no a kind of effective control electric automobile torque for the prior art
Output method.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of electric automobile torque referee method, it is characterised in that bag
Include following steps：
S1：IGBT temperature igbt_temp, substrate temperature base_temp, motor temperature motor_ are gathered by microprocessor
temp；
S2:The drop torsion origin temp for defining the IGBT temperature is igbt_warn, and it is max_igbt_ that maximum drop, which turns round coefficient,
Factor, controller are stopped temperature igbt_off, gather current IGBT temperature and calculate drop and turn round coefficient igbt_factor=
max_igbt_factor×(igbt_temp-igbt_warn)÷(igbt_off-igbt_warn)；
S3：The drop torsion origin temp for defining the substrate temperature is base_warn, and maximum drop turns round Coefficient m ax_base_
Factor, controller are stopped temperature base_off, and collection front substrate temperature computation drop turns round coefficient base_factor=
max_base_factor×(base_temp-base_warn)÷(base_off-base_warn)；
S4：The drop torsion origin temp for defining the motor temperature is motor_wa rn, and it is ma x_ that maximum drop, which turns round coefficient,
Motor_factor, controller are stopped temperature motor_off, and collection current motor temperature computation drop turns round Coefficient m otor_
Factor=max_motor_factor × (motor_temp-motor_warn) ÷ (motor_off-motor_warn)；
S5：Compare igbt_factor, base_factor, the motor_factor calculated in S2, S3, S4 and take it maximum
It is worth and saves as temperature drop and turns round coefficient temp_factor；
S6：Torque T 1=T* × temp_factor after temperature drop is turned round is obtained, wherein T* is requested torque；
S7:The controlled current rotating speed of motor of definition is speed, according to formula P=T1 × speed ÷ 9550, calculates real-time work(
Rate P, the torque T 1 that set temperature is dropped after turning round when P is more than the maximum power max_p of motor permission is maximum allowable requested torque
max_T*；
S8:The minimum permission voltage of controller work is min_volt, judges whether power battery voltage is less than for volt
Min_volt, then set if less than min_volt torque T be 0 otherwise set torque T be T1；
S9：Judge whether temperature sensor and voltage acquisition are faulty, it is nominal torque that torque T is set if faulty
normal_T；
S10：Compare the torque T in S8, S9 and be minimized as final output.
The present invention possesses following beneficial effect：
Electric automobile torque referee method provided by the invention is preferred to obtain the moment of torsion after temperature drop is turned round, and then passes through maximum
Power limit obtains maximum allowable requested torque, ensure that temperature sensing and the torque setting of voltage acquisition under normal circumstances, and
And in sensor fault, motor is protected by nominal torque.
Certainly, implement any of the products of the present invention and do not necessarily require achieving all the advantages described above at the same time.
Brief description of the drawings
Fig. 1 is electric automobile torque referee method schematic diagram provided in an embodiment of the present invention.
Specific embodiment
As shown in Figure 1, an embodiment of the present invention provides a kind of electric automobile torque referee method, it comprises the following steps：
S1：IGBT temperature igbt_temp, substrate temperature base_temp, motor temperature motor_ are gathered by microprocessor
temp；
S2:The drop torsion origin temp for defining the IGBT temperature is igbt_warn, and it is max_igbt_ that maximum drop, which turns round coefficient,
Factor, controller are stopped temperature igbt_off, gather current IGBT temperature and calculate drop and turn round coefficient igbt_factor=
max_igbt_factor×(igbt_temp-igbt_warn)÷(igbt_off-igbt_warn)；
S3：The drop torsion origin temp for defining the substrate temperature is base_warn, and maximum drop turns round Coefficient m ax_base_
Factor, controller are stopped temperature base_off, and collection front substrate temperature computation drop turns round coefficient base_factor=
max_base_factor×(base_temp-base_warn)÷(base_off-base_warn)；
S4：The drop torsion origin temp for defining the motor temperature is motor_wa rn, and it is ma x_ that maximum drop, which turns round coefficient,
Motor_factor, controller are stopped temperature motor_off, and collection current motor temperature computation drop turns round Coefficient m otor_
Factor=max_motor_factor × (motor_temp-motor_warn) ÷ (motor_off-motor_warn)；
S5：Compare igbt_factor, base_factor, the motor_factor calculated in S2, S3, S4 and take it maximum
It is worth and saves as temperature drop and turns round coefficient temp_factor；
S6：Torque T 1=T* × temp_factor after temperature drop is turned round is obtained, wherein T* is requested torque；
S7:The controlled current rotating speed of motor of definition is speed, according to formula P=T1 × speed ÷ 9550, calculates real-time work(
Rate P, the torque T 1 that set temperature is dropped after turning round when P is more than the maximum power max_p of motor permission is maximum allowable requested torque
max_T*；
S8:The minimum permission voltage of controller work is min_volt, judges whether power battery voltage is less than for volt
Min_volt, then set if less than min_volt torque T be 0 otherwise set torque T be T1；
S9：Judge whether temperature sensor and voltage acquisition are faulty, it is nominal torque that torque T is set if faulty
normal_T；
S10：Compare the torque T in S8, S9 and be minimized as final output.
Vulgar electric automobile torque referee method provided by the invention is preferred to obtain the moment of torsion after temperature drop is turned round, and then passes through
Maximum power limits to obtain maximum allowable requested torque, ensure that the moment of torsion of temperature sensing with voltage acquisition under normal circumstances is set
It is fixed, and in sensor fault, motor is protected by nominal torque.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (1)
1. a kind of electric automobile torque referee method, it is characterised in that comprise the following steps：
S1：IGBT temperature igbt_temp, substrate temperature base_temp, motor temperature motor_ are gathered by microprocessor
temp；
S2:The drop torsion origin temp for defining the IGBT temperature is ig bt_warn, and it is max_ig bt_ that maximum drop, which turns round coefficient,
Factor, controller are stopped temperature igbt_off, gather current IGBT temperature and calculate drop and turn round coefficient igbt_factor=
max_igbt_factor×(igbt_temp-igbt_warn)÷(igbt_off-igbt_warn)；
S3：The drop torsion origin temp for defining the substrate temperature is base_warn, and maximum drop turns round Coefficient m ax_base_factor,
Controller is stopped temperature base_off, and collection front substrate temperature computation drop turns round coefficient base_factor=max_base_
factor×(base_temp-base_warn)÷(base_off-base_warn)；
S4：The drop torsion origin temp for defining the motor temperature is motor_warn, and it is max_motor_ that maximum drop, which turns round coefficient,
Factor, controller are stopped temperature motor_off, and collection current motor temperature computation drop turns round Coefficient m otor_factor=
max_motor_factor×(motor_temp-motor_warn)÷(motor_off-motor_warn)；
S5：Compare igbt_factor, base_factor, the motor_factor calculated in S2, S3, S4 and take its maximum simultaneously
Save as temperature drop and turn round coefficient temp_factor；
S6：Torque T 1=T* × temp_factor after temperature drop is turned round is obtained, wherein T* is requested torque；
S7:The controlled current rotating speed of motor of definition is speed, according to formula P=T1 × speed ÷ 9550, calculates realtime power P,
The torque T 1 that set temperature is dropped after turning round when P is more than the maximum power max_p of motor permission is maximum allowable requested torque
max_T*；
S8:The minimum permission voltage of controller work is min_volt, judges whether power battery voltage is less than min_ for volt
Volt, then set if less than min_volt torque T be 0 otherwise set torque T be T1；
S9：Judge whether temperature sensor and voltage acquisition are faulty, it is nominal torque that torque T is set if faulty
normal_T；
S10：Compare the torque T in S8, S9 and be minimized as final output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645060.8A CN106080267B (en) | 2016-08-08 | 2016-08-08 | A kind of electric automobile torque referee method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610645060.8A CN106080267B (en) | 2016-08-08 | 2016-08-08 | A kind of electric automobile torque referee method |
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| CN106080267A CN106080267A (en) | 2016-11-09 |
| CN106080267B true CN106080267B (en) | 2018-05-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108128211B (en) * | 2016-12-01 | 2021-07-23 | 上海汽车集团股份有限公司 | New energy automobile, motor torque determination method and device thereof and motor |
| CN111478646B (en) * | 2020-04-28 | 2023-04-14 | 重庆长安新能源汽车科技有限公司 | Temperature protection method and system for motor system of electric vehicle, electric vehicle and storage medium |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8195370B2 (en) * | 2007-07-16 | 2012-06-05 | GM Global Technology Operations LLC | Association of torque requesting modules in a coordinated torque architecture |
| US8634976B2 (en) * | 2010-03-01 | 2014-01-21 | GM Global Technology Operations LLC | Systems and methods for managing torque capability in electric motor systems |
| CN102756667B (en) * | 2011-04-26 | 2014-10-08 | 长春易控汽车电子有限公司 | Torque control method of electric vehicle |
| CN103625306A (en) * | 2012-08-20 | 2014-03-12 | 北汽福田汽车股份有限公司 | Torque monitoring system of electric vehicle |
| CN103935264B (en) * | 2014-04-29 | 2016-01-27 | 大连理工大学 | A kind of electric vehicle driver demand torque calculation method |
| KR101628464B1 (en) * | 2014-07-14 | 2016-06-08 | 현대자동차주식회사 | Apparatus and Method for alleviating voltage drop of battery cell |
| CN105059136B (en) * | 2015-09-18 | 2017-08-29 | 重庆长安汽车股份有限公司 | Processing method, device and the controller of vehicle control data |
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Chuanfu Inventor after: Li Yanhui Inventor before: Zhang Hongkai Inventor before: Li Yang |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180410 Address after: 200120 Shanghai city Pudong New Area Lianxi Road No. 1210 building 101 room 2 Applicant after: Shanghai from the Cci Capital Ltd. Address before: 230000 Anhui Province, Hefei City Economic and Technological Development Zone prosperous Avenue North, Furong Road East Building 1, room 207, noble Mansion Applicant before: HEFEI TAIHAOLE ELECTRONIC TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20191106 Address after: 271100 new material industrial park, Yangzhuang Town, Laiwu nonggao District, Jinan City, Shandong Province Patentee after: Shandong HaoChi Intelligent Automobile Co.,Ltd. Address before: Room 101, Building 2, No. 1210 Lianxi Road, Pudong New Area, Shanghai Patentee before: Shanghai from the Cci Capital Ltd. |
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Effective date of registration: 20230420 Address after: 271100 new material industrial park, Yangzhuang Town, Laiwu District, Jinan City, Shandong Province Patentee after: Haochi Express Automotive Technology (Shandong) Co.,Ltd. Address before: 271100 new material industrial park, Yangzhuang Town, Laiwu nonggao District, Jinan City, Shandong Province Patentee before: Shandong HaoChi Intelligent Automobile Co.,Ltd. |
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Effective date of registration: 20230523 Address after: Shop 133, Building 26, Shuicheng Community, No. 47 Beiguan Road, Penglaige Street, Penglai District, Yantai City, Shandong Province, 265600 Patentee after: Yidian Inspiration Automotive Technology (Shandong) Co.,Ltd. Address before: 271100 new material industrial park, Yangzhuang Town, Laiwu District, Jinan City, Shandong Province Patentee before: Haochi Express Automotive Technology (Shandong) Co.,Ltd. |
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