CN103944485A - Protection method for over-temperature of permanent magnet motor in pure electric vehicle - Google Patents
Protection method for over-temperature of permanent magnet motor in pure electric vehicle Download PDFInfo
- Publication number
- CN103944485A CN103944485A CN201310713112.7A CN201310713112A CN103944485A CN 103944485 A CN103944485 A CN 103944485A CN 201310713112 A CN201310713112 A CN 201310713112A CN 103944485 A CN103944485 A CN 103944485A
- Authority
- CN
- China
- Prior art keywords
- magneto
- temperature
- control system
- motor
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a protection method for over-temperature of a permanent magnet motor in a pure electric vehicle. Temperature of the permanent magnet motor is acquired in real time via a temperature sensor by the method. A control system judges temperature of the permanent magnet motor. When temperature is lower than or equal to 135 DEG C, the permanent magnet motor normally works. When temperature is higher than 135 DEG C, the control system judges the electric and power generation state of operation of the permanent magnet motor. Different motor temperature areas are respectively designated under the electric and power generation state so that power reduction operation, zero power operation and constant power operation are performed by the motor according to different slopes. When temperature of the motor is greater than 152 DEG C, time of duration of the motor is judged. If time of duration is greater than or equal to 20s, the control system generates over-temperature fault alarm of the permanent magnet motor, or the motor performs zero power operation. According to the method, an objective of motor over-temperature protection can be achieved, the requirement for normal electricity utilization of other electricity-utilizing devices in the overall vehicle can also be met so that stable and reliable operation of the vehicle can be guaranteed, and safety hidden trouble of the vehicle can be avoided.
Description
Technical field
The present invention relates to the guard method of magneto excess temperature in a kind of pure electric automobile.
Background technology
In pure electric automobile, magneto is realized control and the switching of generating state and motoring condition by control system, for pure electric automobile, its running environment is comparatively complicated, when pure electric automobile when long-time running, often can cause motor excess temperature fault under hot environment; At present in electric machine control system; generally all the temperature of magneto is carried out to Real-Time Monitoring, and there is certain motor overheat protector, but only considered how to prevent motor excess temperature; and and reckon without the need for electricity of other power consumption equipments on car load, therefore there is certain one-sidedness.But as electric machine control system; need meet the job requirement of Full Vehicle System; conventional motors excess temperature protection method is at motor during in generating state; in order to ensure that motor can excess temperature, conventionally take motor limit Power operation, but can cause energy output deficiency simultaneously; and then other power consumption equipments on car load can not normally be moved; limit the application of magneto on pure electric automobile, affected the reliable and stable operation of vehicle, and had certain potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is to provide the guard method of magneto excess temperature in a kind of pure electric automobile; this method can reach the object of magneto overheat protector; can meet again the demand of the normal electricity consumption of other power consumption equipment on car load; thereby ensure the reliable and stable operation of vehicle, avoid the potential safety hazard of vehicle.
For solving the problems of the technologies described above, in pure electric automobile of the present invention, the guard method of magneto excess temperature comprises the steps:
Step 1, the temperature sensor Real-time Collection magneto temperature of passing through, control system is differentiated magneto temperature, and in the time that temperature is less than or equal to 135 DEG C, magneto normally moves, in the time that temperature is greater than 135 DEG C, control system is differentiated magneto running status;
Step 2, if magneto is when the motoring condition, when magneto temperature is in 135～144 DEG C of regions, it is-1/5 downrating according to slope that control system makes magneto; When magneto temperature is in 144～148 DEG C of regions, it is-1/15 downrating according to slope that control system makes magneto; When magneto temperature is in 148～152 DEG C of regions, control system makes magneto move according to zero energy; When magneto temperature is greater than 152 DEG C, judge that magneto is in the duration being greater than at 152 DEG C, the duration is less than 20s, and magneto moves according to zero energy, if the duration is more than or equal to 20s, control system provides magneto excess temperature fault alarm;
Step 3, if magneto is when the generating state, when magneto temperature is in 135～140 DEG C of regions, it is-1/17.5 downrating according to slope that control system makes magneto; When magneto temperature is in 140～146 DEG C of regions, control system makes magneto according to 3Kw output-constant operation; When magneto temperature is in 146～152 DEG C of regions, control system makes magneto move according to zero energy; When magneto temperature is greater than 152 DEG C, judge that magneto is in the duration being greater than at 152 DEG C, the duration is less than 20s, and magneto moves according to zero energy, if the duration is more than or equal to 20s, control system provides magneto excess temperature fault alarm.
Because the guard method of magneto excess temperature in pure electric automobile of the present invention has adopted technique scheme, be that this method is passed through temperature sensor Real-time Collection magneto temperature, control system is differentiated magneto temperature, in the time that temperature is less than or equal to 135 DEG C, magneto normally moves, in the time that temperature is greater than 135 DEG C, control system is differentiated the electronic and generating state of magneto operation; Under electronic and generating state, delimit respectively different motor temperature regions, make motor carry out downrating, zero energy operation and output-constant operation by Different Slope, in the time that being greater than 152 DEG C, motor temperature judges the motor duration, if the duration is more than or equal to 20s, control system provides magneto excess temperature fault alarm, otherwise motor moves according to zero energy.This method can reach the object of magneto overheat protector, can meet again the demand of the normal electricity consumption of other power consumption equipment on car load, thereby ensures the reliable and stable operation of vehicle, avoids the potential safety hazard of vehicle.
Brief description of the drawings
Below in conjunction with drawings and embodiments, the present invention is described in further detail:
Fig. 1 is the FB(flow block) of the guard method of magneto excess temperature in pure electric automobile of the present invention.
Embodiment
As shown in Figure 1, in pure electric automobile of the present invention, the guard method of magneto excess temperature comprises the steps:
Step 1, the temperature sensor Real-time Collection magneto temperature of passing through, control system is differentiated magneto temperature, and in the time that temperature is less than or equal to 135 DEG C, magneto normally moves, in the time that temperature is greater than 135 DEG C, control system is differentiated magneto running status;
Step 2, if magneto is when the motoring condition, when magneto temperature is in 135～144 DEG C of regions, it is-1/5 downrating according to slope that control system makes magneto; When magneto temperature is in 144～148 DEG C of regions, it is-1/15 downrating according to slope that control system makes magneto; When magneto temperature is in 148～152 DEG C of regions, control system makes magneto move according to zero energy; When magneto temperature is greater than 152 DEG C, judge that magneto is in the duration being greater than at 152 DEG C, the duration is less than 20s, and magneto moves according to zero energy, if the duration is more than or equal to 20s, control system provides magneto excess temperature fault alarm;
Step 3, if magneto is when the generating state, when magneto temperature is in 135～140 DEG C of regions, it is-1/17.5 downrating according to slope that control system makes magneto; When magneto temperature is in 140～146 DEG C of regions, control system makes magneto according to 3Kw output-constant operation; When magneto temperature is in 146～152 DEG C of regions, control system makes magneto move according to zero energy; When magneto temperature is greater than 152 DEG C, judge that magneto is in the duration being greater than at 152 DEG C, the duration is less than 20s, and magneto moves according to zero energy, if the duration is more than or equal to 20s, control system provides magneto excess temperature fault alarm.
In the prior art, conventionally be all regardless of running status to the overheat protector of motor temperature, be that electronic and generating state is to carry out downrating according to same curve, but for the magneto using in pure electric vehicle, this often can not meet complex environment on car load, when motor is during in generating state, fall power according to a curve and can not meet Full Vehicle System requirement, so the present invention is exactly the method that adopts broken line, choosing of broken line slope of a curve value and temperature spot is the maximum power according to other power consumption equipments on car load, motor data under the temperature rise data of magneto itself and adverse circumstances.After reaching 152 DEG C according to this method magneto temperature, need to continue to report again excess temperature fault after 20s; foundation is by the broken line downrating to magneto; magneto temperature generally can not reach 152 DEG C; even if reach; duration can not exceed 20s yet; motor temperature will slowly lower, and has therefore reached the object of magneto overheat protector.
This method shows that by magneto bench test magneto all can meet the requirement of pure electric automobile operation under electronic and generating state; and verify by car load; vehicle idling start-stop function, anxious urgent deceleration etc. all meet the requirement of vehicle actual travel; in reaching magneto overheat protector object; ensure the demand of the normal electricity consumption of other power consumption equipment on car load; thereby guarantee the reliable and stable operation of vehicle, avoid the potential safety hazard of vehicle.
Claims (1)
1. a guard method for magneto excess temperature in pure electric automobile, is characterized in that this method comprises the steps:
Step 1, the temperature sensor Real-time Collection magneto temperature of passing through, control system is differentiated magneto temperature, and in the time that temperature is less than or equal to 135 DEG C, magneto normally moves, in the time that temperature is greater than 135 DEG C, control system is differentiated magneto running status;
Step 2, if magneto is when the motoring condition, when magneto temperature is in 135～144 DEG C of regions, it is-1/5 downrating according to slope that control system makes magneto; When magneto temperature is in 144～148 DEG C of regions, it is-1/15 downrating according to slope that control system makes magneto; When magneto temperature is in 148～152 DEG C of regions, control system makes magneto move according to zero energy; When magneto temperature is greater than 152 DEG C, judge that magneto is in the duration being greater than at 152 DEG C, the duration is less than 20s, and magneto moves according to zero energy, if the duration is more than or equal to 20s, control system provides magneto excess temperature fault alarm;
Step 3, if magneto is when the generating state, when magneto temperature is in 135～140 DEG C of regions, it is-1/17.5 downrating according to slope that control system makes magneto; When magneto temperature is in 140～146 DEG C of regions, control system makes magneto according to 3Kw output-constant operation; When magneto temperature is in 146～152 DEG C of regions, control system makes magneto move according to zero energy; When magneto temperature is greater than 152 DEG C, judge that magneto is in the duration being greater than at 152 DEG C, the duration is less than 20s, and magneto moves according to zero energy, if the duration is more than or equal to 20s, control system provides magneto excess temperature fault alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713112.7A CN103944485A (en) | 2013-12-23 | 2013-12-23 | Protection method for over-temperature of permanent magnet motor in pure electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713112.7A CN103944485A (en) | 2013-12-23 | 2013-12-23 | Protection method for over-temperature of permanent magnet motor in pure electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103944485A true CN103944485A (en) | 2014-07-23 |
Family
ID=51192009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310713112.7A Pending CN103944485A (en) | 2013-12-23 | 2013-12-23 | Protection method for over-temperature of permanent magnet motor in pure electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103944485A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617838A (en) * | 2015-02-16 | 2015-05-13 | 中国北方车辆研究所 | Automobile generator control system and method |
| CN105207569A (en) * | 2015-10-26 | 2015-12-30 | 重庆长安汽车股份有限公司 | Over-temperature protection method and device for motor of electric vehicle and electric vehicle |
| CN106208845A (en) * | 2016-07-11 | 2016-12-07 | 广东美的暖通设备有限公司 | The control method of direct current generator and control device and breeze fan |
| CN106374682A (en) * | 2016-09-30 | 2017-02-01 | 安徽江淮汽车股份有限公司 | Cooling method and system of hybrid power motor |
| CN112092630A (en) * | 2020-09-23 | 2020-12-18 | 北京车和家信息技术有限公司 | Motor over-temperature protection method and device, driving system and vehicle |
| CN112596402A (en) * | 2020-12-09 | 2021-04-02 | 青岛海尔空调器有限总公司 | Method and device for safety protection of intelligent household equipment and intelligent household equipment |
| WO2023155941A1 (en) * | 2023-05-12 | 2023-08-24 | 皖西学院 | Protection method for overtemperature of permanent magnet electric motor in all-electric vehicle |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3684871B2 (en) * | 1998-10-27 | 2005-08-17 | トヨタ自動車株式会社 | Temperature protection control device for power converter |
| CN101056004A (en) * | 2006-04-12 | 2007-10-17 | 三菱电机株式会社 | Control apparatus-integrated generator-motor |
| JP2008168669A (en) * | 2007-01-09 | 2008-07-24 | Jtekt Corp | Electric power steering device |
| CN101397011A (en) * | 2007-09-28 | 2009-04-01 | 通用汽车环球科技运作公司 | Thermal protection of an electric drive system |
| CN101910044A (en) * | 2007-12-27 | 2010-12-08 | 斗山英维高株式会社 | Motor control method and control device for electrical forklift truck |
| US20110101904A1 (en) * | 2009-11-05 | 2011-05-05 | Honda Motor Co., Ltd. | Overheat Protection Apparatus |
| CN102135453A (en) * | 2010-12-10 | 2011-07-27 | 奇瑞汽车股份有限公司 | Method and system for monitoring motor temperature as well as method and system for controlling motor power |
| WO2012032239A1 (en) * | 2010-09-09 | 2012-03-15 | Renault S.A.S. | Method and device for the thermal protection of an electric body of a motor vehicle |
| CN102969965A (en) * | 2011-08-31 | 2013-03-13 | 本田技研工业株式会社 | Output control device of electric generator |
| CN103095213A (en) * | 2013-01-18 | 2013-05-08 | 重庆长安汽车股份有限公司 | Motor temperature protection method and motor control equipment and motor system |
-
2013
- 2013-12-23 CN CN201310713112.7A patent/CN103944485A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3684871B2 (en) * | 1998-10-27 | 2005-08-17 | トヨタ自動車株式会社 | Temperature protection control device for power converter |
| CN101056004A (en) * | 2006-04-12 | 2007-10-17 | 三菱电机株式会社 | Control apparatus-integrated generator-motor |
| JP2008168669A (en) * | 2007-01-09 | 2008-07-24 | Jtekt Corp | Electric power steering device |
| CN101397011A (en) * | 2007-09-28 | 2009-04-01 | 通用汽车环球科技运作公司 | Thermal protection of an electric drive system |
| CN101910044A (en) * | 2007-12-27 | 2010-12-08 | 斗山英维高株式会社 | Motor control method and control device for electrical forklift truck |
| US20110101904A1 (en) * | 2009-11-05 | 2011-05-05 | Honda Motor Co., Ltd. | Overheat Protection Apparatus |
| WO2012032239A1 (en) * | 2010-09-09 | 2012-03-15 | Renault S.A.S. | Method and device for the thermal protection of an electric body of a motor vehicle |
| CN102135453A (en) * | 2010-12-10 | 2011-07-27 | 奇瑞汽车股份有限公司 | Method and system for monitoring motor temperature as well as method and system for controlling motor power |
| CN102969965A (en) * | 2011-08-31 | 2013-03-13 | 本田技研工业株式会社 | Output control device of electric generator |
| CN103095213A (en) * | 2013-01-18 | 2013-05-08 | 重庆长安汽车股份有限公司 | Motor temperature protection method and motor control equipment and motor system |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617838A (en) * | 2015-02-16 | 2015-05-13 | 中国北方车辆研究所 | Automobile generator control system and method |
| CN104617838B (en) * | 2015-02-16 | 2018-03-20 | 中国北方车辆研究所 | A kind of automobile current generator control system and control method |
| CN105207569A (en) * | 2015-10-26 | 2015-12-30 | 重庆长安汽车股份有限公司 | Over-temperature protection method and device for motor of electric vehicle and electric vehicle |
| CN105207569B (en) * | 2015-10-26 | 2018-01-30 | 重庆长安汽车股份有限公司 | Motor excess temperature protection method, device and the electric car of a kind of electric car |
| CN106208845A (en) * | 2016-07-11 | 2016-12-07 | 广东美的暖通设备有限公司 | The control method of direct current generator and control device and breeze fan |
| CN106208845B (en) * | 2016-07-11 | 2019-02-12 | 广东美的暖通设备有限公司 | The control method and control device and breeze fan of direct current generator |
| CN106374682A (en) * | 2016-09-30 | 2017-02-01 | 安徽江淮汽车股份有限公司 | Cooling method and system of hybrid power motor |
| CN106374682B (en) * | 2016-09-30 | 2018-10-30 | 安徽江淮汽车集团股份有限公司 | A kind of hybrid powder motor cooling means and system |
| CN112092630A (en) * | 2020-09-23 | 2020-12-18 | 北京车和家信息技术有限公司 | Motor over-temperature protection method and device, driving system and vehicle |
| CN112596402A (en) * | 2020-12-09 | 2021-04-02 | 青岛海尔空调器有限总公司 | Method and device for safety protection of intelligent household equipment and intelligent household equipment |
| WO2023155941A1 (en) * | 2023-05-12 | 2023-08-24 | 皖西学院 | Protection method for overtemperature of permanent magnet electric motor in all-electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103944485A (en) | Protection method for over-temperature of permanent magnet motor in pure electric vehicle | |
| CN101934743B (en) | Pure electric vehicle torque safety on-line monitoring method | |
| CN105814771A (en) | Charger | |
| CN202931247U (en) | Automobile AC generator voltage regulator | |
| CN103901301A (en) | Fault diagnosis method for frequency converter | |
| CN103780177A (en) | Automobile AC generator voltage regulator and voltage regulation method | |
| CN103434415A (en) | Motor vehicle driving system | |
| CN101122262A (en) | Hybrid power automobile motor warm-up control method | |
| CN103580589A (en) | Electric rotary machine for motor vehicle | |
| CN104181472A (en) | Method of detecting state of power cable in inverter system | |
| CN103166540B (en) | A kind of conservation treatment method of brake resistance in AC servo drive system | |
| CN104802645A (en) | Parallel type electric vehicle regeneration brake system and control method thereof | |
| CN105450107A (en) | Bus capacitor discharge control method for automotive permanent magnet synchronous motor | |
| CN205911736U (en) | Motor control system | |
| CN105141214A (en) | Method used by motor controller for treating bus voltage fault | |
| CN208488505U (en) | A kind of test macro of Vehicular charger | |
| CN109747423A (en) | A kind of electric car Safety Shutdown System and method | |
| CN103112364B (en) | Real-time control method and device for automotive electric balance | |
| CN102043106B (en) | Detection method ofdirect current charging pile field detection system | |
| CN103278692B (en) | Brake circuit of wind power generation converter detection method | |
| CN105799541A (en) | A self-healing method for the over-current fault of a drive motor of an electric vehicle | |
| CN107139740B (en) | Power regulating method and device | |
| CN202034774U (en) | Overvoltage protection device for permanent magnet synchronous motor control failure | |
| CN103204081B (en) | Motor control system and method for electric cars | |
| CN107634501B (en) | Motor control system and torque safety monitoring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140723 |
|
| WD01 | Invention patent application deemed withdrawn after publication |