CN103738198B - A kind of vehicle motor control system and method for supervising thereof with security monitoring function - Google Patents

A kind of vehicle motor control system and method for supervising thereof with security monitoring function Download PDF

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Publication number
CN103738198B
CN103738198B CN201310694007.3A CN201310694007A CN103738198B CN 103738198 B CN103738198 B CN 103738198B CN 201310694007 A CN201310694007 A CN 201310694007A CN 103738198 B CN103738198 B CN 103738198B
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China
Prior art keywords
electric machine
machine controller
controller chip
monitoring module
motor
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CN201310694007.3A
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Chinese (zh)
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CN103738198A (en
Inventor
蔡交明
罗晓
王金磊
陈立冲
王瑛
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奇瑞汽车股份有限公司
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Priority to CN201310694007.3A priority Critical patent/CN103738198B/en
Publication of CN103738198A publication Critical patent/CN103738198A/en
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Abstract

The present invention proposes a kind of vehicle motor control system and the method for supervising thereof with security monitoring function, to meet the growing requirement to automotive safety aspect.The vehicle motor control system of this security monitoring function comprises the electric machine controller chip controlling motor and run, electric machine controller chip is connected with CAN, described electric machine controller chip is connected with Power Monitoring Unit, bus voltage monitoring module, bus current monitoring module, three phase current monitoring module, controller temperature monitoring module, motor temperature monitoring module, motor speed monitoring module and operation monitoring module, described operation monitoring module and electric machine controller communication.Invention increases many hardware monitoring modules and software supervision function, form the monitor network of a secondary together, guarantee that all failure messages can be found in time, and can process timely, make whole control system have higher safety, meet the requirement that auto trade is now relevant to safety.

Description

A kind of vehicle motor control system and method for supervising thereof with security monitoring function
Technical field
The invention belongs to automobile technical field, be specifically related to a kind of vehicle motor control system and the method for supervising thereof with security monitoring function.
Background technology
In current auto-industry, along with electric device, electronic machine, programmable electronic device are in a large amount of uses of field of automobile control, some brand-new safety problems are constantly exposed by the media.Although such as pin touches on the brake and but finds the pedal door event constantly accelerated of vehicle, or when using constant speed cruising system, vehicle accelerates suddenly or slows down suddenly, then or when using automated parking system, the unexpected get out of hand of vehicle causes the accident etc.And in electronlmobil, owing to employing more electronic machine, safety problem is particularly outstanding.
The motor driven systems of electronlmobil, except having the general character of common electrical transmission, also should meet the requirement of electronlmobil special-purpose.Electronlmobil is a kind of outdoor operation, compact conformation, have the walking machine of vehicular energy, and operating mode is complicated, should go at express speed at a high speed, again can frequent starting, braking, uphill/downhill, overtake other vehicles fast, emergency brake; Snow sky, rainy day, midsummer, severe winter, the severe weather conditions such as after snow should be adapted to, the vibrations of jolting of road can be born again, also to ensure the comfortable of driver and conductor and safety, so automotive safety is particularly important, and most important in electronlmobil be power control system, its safety problem is the matter of utmost importance of electronlmobil safety, therefore must carry out security monitoring more fully to electric machine control system, guarantees vehicle safe operation in the process of moving.
Summary of the invention
The object of the invention is to propose a kind of vehicle motor control system and method for supervising thereof with security monitoring function, to meet the growing requirement to automotive safety aspect.
The vehicle motor control system with security monitoring function of the present invention comprises the electric machine controller chip controlling motor and run, described electric machine controller chip is connected with CAN, key is that described electric machine controller chip is connected with the Power Monitoring Unit detecting electric machine controller chip power voltage, detect the bus voltage monitoring module of DC bus-bar voltage, detect the bus current monitoring module of DC bus current, detect the three phase current monitoring module of three phase current, the controller temperature monitoring module of detection control actuator temperature, detect the motor temperature monitoring module of motor temperature, detect motor speed monitoring module and the operation monitoring module of motor speed, described operation monitoring module and electric machine controller communication, to obtain the clock of electric machine controller chip, temperature, power information.
Further, for guaranteeing independence, described operation monitoring module adopts the independent current source different from electric machine controller chip power to power.
Further, described electric machine controller chip is also connected with hardware watchdog module.When occurring program fleet, run when the problem such as to make mistakes, hardware watchdog module can send a reset enable signal electric machine controller chip reset, makes system roll-back, recovers normal.
The above-mentioned method for supervising with the vehicle motor control system of security monitoring function, is characterized in that comprising the steps:
A: described electric machine controller chip utilizes Power Monitoring Unit to detect electric machine controller chip power voltage, when electric machine controller chip power voltage is too high, electric machine controller chip sends power supply overvoltage failure report by CAN to entire car controller, cuts off the power supply of self and driving circuit simultaneously; When electric machine controller chip power voltage is too low, electric machine controller chip sends the under-voltage failure report of power supply by CAN to entire car controller, no longer respond the mode request of entire car controller, when electric machine controller chip power voltage recovers normally, electric machine controller chip removes the under-voltage failure message of power supply automatically, the request of normal response entire car controller;
B: described electric machine controller chip detection DC bus-bar voltage, bus current, three phase current, controller temperature, motor temperature and motor speed, and when DC bus-bar voltage, bus current, three phase current, controller temperature, motor temperature and motor speed exceed predetermined threshold, electric machine controller chip sends electrical fault report by CAN to entire car controller, controls motor simultaneously and is in predetermined security operating mode;
C: described electric machine controller chip calculates the moment of torsion of motor in real time, when the changing value of the Motor torque in predetermined interval exceeds preset range, electric machine controller chip reports Motor torque fault by CAN to entire car controller, and electric machine controller chip enters failure mode, stop the value request of response entire car controller.
D: the sampled value of electric machine controller chip monitoring Power Monitoring Unit, electric moter voltage monitoring module, current of electric monitoring module, motor temperature monitoring module, motor speed monitoring module, if the number of times that the difference of the double sampled value of above-mentioned monitoring module exceedes preset limit value reaches pre-determined number, electric machine controller chip reports the fault of corresponding monitoring module to entire car controller by CAN, and electric machine controller chip enters failure mode, stop the value request of response entire car controller.
The vehicle motor control system with security monitoring function of the present invention adds many hardware monitoring modules and software supervision function on original electric machine control system basis of playing merely driving effect, form the monitor network of a secondary together, guarantee that all failure messages can be found in time, and can process timely, make whole control system have higher safety, meet the requirement that auto trade is now relevant to safety.
Accompanying drawing explanation
Fig. 1 is the functional block diagram with the vehicle motor control system of security monitoring function of the present invention.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the effect and principle of work etc. of the specific embodiment of the present invention as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
Embodiment 1:
As shown in Figure 1, the vehicle motor control system with security monitoring function of the present embodiment comprises the electric machine controller chip controlling motor and run, described electric machine controller chip is connected with CAN, key is that described electric machine controller chip is connected with the Power Monitoring Unit detecting electric machine controller chip power voltage, detect the bus voltage monitoring module of DC bus-bar voltage, detect the bus current monitoring module of DC bus current, detect the three phase current monitoring module of three phase current, the controller temperature monitoring module of detection control actuator temperature, detect the motor temperature monitoring module of motor temperature, detect motor speed monitoring module and the operation monitoring module of motor speed, what wherein said operation monitoring module adopted is special security monitoring chip is the CIC61508 of company of Infineon, this monitoring chip communicates with electric machine controller chip, it monitors the working condition of electric machine controller chip by the situation of change etc. detecting the clock of electric machine controller chip, power supply and bottom hardware configuration information, the calculation error of electric machine controller chip can be identified, and revise in time, guarantee running software safety.It adopts independent current source to power simultaneously, and the power supply of electric machine controller chip separately, guarantees its independence.
Further, described electric machine controller chip is also connected with hardware watchdog module.When occurring program fleet, run when the problem such as to make mistakes, hardware watchdog module can send a reset enable signal electric machine controller chip reset, makes system roll-back, recovers normal.
The above-mentioned method for supervising with the vehicle motor control system of security monitoring function, is characterized in that comprising the steps:
A: described electric machine controller chip utilizes Power Monitoring Unit to detect electric machine controller chip power voltage, when electric machine controller chip power voltage is too high, electric machine controller chip sends power supply overvoltage failure report by CAN to entire car controller, cuts off the power supply of self and driving circuit simultaneously; When electric machine controller chip power voltage is too low, electric machine controller chip sends the under-voltage failure report of power supply by CAN to entire car controller, no longer respond the mode request of entire car controller, when electric machine controller chip power voltage recovers normally, automatic removing is powered the request of under-voltage failure message, normal response entire car controller;
B: described electric machine controller chip detection DC bus-bar voltage, bus current, three phase current, controller temperature, motor temperature and motor speed, and when DC bus-bar voltage, bus current, three phase current, controller temperature, motor temperature and motor speed exceed predetermined threshold, electric machine controller chip sends electrical fault report by CAN to entire car controller, controls motor simultaneously and is in predetermined security operating mode;
C: described electric machine controller chip calculates the moment of torsion of motor in real time, when the changing value of the Motor torque in predetermined interval exceeds preset range, electric machine controller chip reports Motor torque fault by CAN to entire car controller, and electric machine controller chip enters failure mode, stop the value request of response entire car controller.
D: the sampled value of electric machine controller chip monitoring Power Monitoring Unit, electric moter voltage monitoring module, current of electric monitoring module, motor temperature monitoring module, motor speed monitoring module, if the number of times that the difference of the double sampled value of above-mentioned monitoring module exceedes preset limit value reaches pre-determined number, electric machine controller chip reports the fault of corresponding monitoring module to entire car controller by CAN, and electric machine controller chip enters failure mode, stop the value request of response entire car controller.

Claims (6)

1. one kind has the method for supervising of the vehicle motor control system of security monitoring function, its vehicle motor control system adopted comprises the electric machine controller chip controlling motor and run, described electric machine controller chip is connected with CAN, described electric machine controller chip is connected with the Power Monitoring Unit detecting electric machine controller chip power voltage, detect the bus voltage monitoring module of DC bus-bar voltage, detect the bus current monitoring module of DC bus current, detect the three phase current monitoring module of three phase current, the controller temperature monitoring module of detection control actuator temperature, detect the motor temperature monitoring module of motor temperature, detect motor speed monitoring module and the operation monitoring module of motor speed, described operation monitoring module and electric machine controller communication, it is characterized in that described method for supervising comprises the steps: A: described electric machine controller chip utilizes Power Monitoring Unit to detect electric machine controller chip power voltage, when electric machine controller chip power voltage is too high, electric machine controller chip sends power supply overvoltage failure report by CAN to entire car controller, cuts off the power supply of self and driving circuit simultaneously, when electric machine controller chip power voltage is too low, electric machine controller chip sends the under-voltage failure report of power supply by CAN to entire car controller, no longer respond the mode request of entire car controller, when electric machine controller chip power voltage recovers normally, electric machine controller chip removes the under-voltage failure message of power supply automatically, the request of normal response entire car controller.
2. the method for supervising with the vehicle motor control system of security monitoring function according to claim 1, characterized by further comprising following steps: B: described electric machine controller chip detection DC bus-bar voltage, DC bus current, three phase current, controller temperature, motor temperature and motor speed, and in DC bus-bar voltage, DC bus current, three phase current, controller temperature, when motor temperature and motor speed exceed predetermined threshold, electric machine controller chip sends electrical fault report by CAN to entire car controller, control motor simultaneously and be in predetermined security operating mode.
3. the method for supervising with the vehicle motor control system of security monitoring function according to claim 2, characterized by further comprising following steps: C: described electric machine controller chip calculates the moment of torsion of motor in real time, when the changing value of the Motor torque in predetermined interval exceeds preset range, electric machine controller chip reports Motor torque fault by CAN to entire car controller, and electric machine controller chip enters failure mode, stop the value request of response entire car controller.
4. the method for supervising with the vehicle motor control system of security monitoring function according to claim 3, characterized by further comprising following steps: D: electric machine controller chip monitoring Power Monitoring Unit, electric moter voltage monitoring module, current of electric monitoring module, motor temperature monitoring module, the sampled value of motor speed monitoring module, if the number of times that the difference of the double sampled value of above-mentioned monitoring module exceedes preset limit value reaches pre-determined number, electric machine controller chip reports the fault of corresponding monitoring module to entire car controller by CAN, and electric machine controller chip enters failure mode, stop the value request of response entire car controller.
5. the method for supervising with the vehicle motor control system of security monitoring function according to claim 1 or 2 or 3 or 4, is characterized in that described operation monitoring module adopts the independent current source different from electric machine controller chip power to power.
6. the method for supervising with the vehicle motor control system of security monitoring function according to claim 1 or 2 or 3 or 4, is characterized in that described electric machine controller chip is also connected with hardware watchdog module.
CN201310694007.3A 2013-12-18 2013-12-18 A kind of vehicle motor control system and method for supervising thereof with security monitoring function CN103738198B (en)

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CN107487185B (en) * 2016-12-26 2019-09-20 宝沃汽车(中国)有限公司 Electric machine controller internal electric source over under-voltage protection circuit, method and electric car
CN106585423A (en) * 2016-12-27 2017-04-26 安徽本纪智能科技有限公司 Intelligent motor control system for new energy automobile
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CN107600010A (en) * 2017-09-20 2018-01-19 中国重汽集团济南动力有限公司 A kind of motor-driven full electric drive special type chassis topological structure of highly reliable height
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CN107972532B (en) * 2017-11-24 2019-10-15 常州寻心电子科技有限公司 A kind of drive system of electric motor vehicle control method
CN108153285B (en) * 2017-12-28 2020-12-15 上汽通用五菱汽车股份有限公司 Automobile safety monitoring method, device, storage medium and system
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