CN104442447A - High speed limit control method of motor drive controller for electrical vehicle - Google Patents
High speed limit control method of motor drive controller for electrical vehicle Download PDFInfo
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- CN104442447A CN104442447A CN201410736548.2A CN201410736548A CN104442447A CN 104442447 A CN104442447 A CN 104442447A CN 201410736548 A CN201410736548 A CN 201410736548A CN 104442447 A CN104442447 A CN 104442447A
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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
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- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention relates to the technical field of electrical vehicles, in particular to a high speed limit control method of a motor drive controller for an electrical vehicle. The method is characterized in that the motor drive controller has a high speed limit control mode; a motor module is connected with a speed sensor module for detecting the motor speed; the speed sensor module and an accelerator pedal torque setting module are connected with a high speed limit control module, and provide a detection signal for the high speed limit control module; the high speed limit control module and the accelerator pedal torque setting module are connected with a motor control module, and provide a detection signal for the motor control module; the motor control module is connected with the motor module to control an engine. According to the method provided by the invention, the defect of lack of effective high speed limit of an existing electrical vehicle is overcome.
Description
Technical field
The present invention relates to electric vehicle engineering field, specifically, relate to a kind of high speed speed-limiting control method of Motor for Electric Automobile driving governor.
Background technology
Along with the development of society and demand expand further, energy shock and day by day serious environmental pollution more and more govern the life of people, and auto trade, as the backbone industry of modern economy, is also faced with huge challenges and tests.New-energy automobile has the advantages such as zero-emission, noise are little, economize energy, and be a kind of vehicle being more suitable for modern economy and society than orthodox car, be also the effective ways solving energy problem and environmental problem simultaneously.
Electronlmobil, using electric energy as power, by motor direct-drive running car, has the advantage that speed-raising is fast, stable.In the actual driving environment of electronlmobil, for the consideration to chaufeur and vehicle safety, at a high speed speed limit is carried out to electronlmobil, prevent overspeed of vehicle driving on the one hand, cause the security loss of the person and property; On the other hand, the bearing of general Motor for Electric Automobile has speed to limit, once hypervelocity may aggravate to damage, reduces the service life of motor.Now general Motor for Electric Automobile driving control system major part adopts vector controlled, as shown in Figure 1, power unit (battery pack), power cell part (three-phase inverter), motor part, signals of vehicles collecting part (driving switch, Das Gaspedal, brake pedal), controller part is comprised.Wherein battery pack provides direct current (DC) to three-phase inverter, produces outgoing current and carry out drive motor after three-phase inverter.The effect of signals of vehicles collecting part gathers driving switch, throttle signal and brake signal respectively, and by the signal transmission that collects to torque controller.Torque controller mainly carries out electric current distribution according to current motor rotating speed and information of vehicles, dq shaft current controller realizes closed loop control to current of electric, and coordinate transformation unit realizes conversion SVPWM control algorithm that three phase current arrives two-phase rotating coordinate system again to two-phase rest frame and given voltage signal is transformed into the switch that pwm signal controls power cell and carrys out drive motor.
Electronlmobil is also in the developing stage at present, correlation technique imperfection.At present, the method for high limiting speed of driving speed is all generally adopt once the speed of a motor vehicle arrives maximum speed, and just remove torque given, this method is actv. in most of occasion, but still may exceed the speed limit when descending, causes danger.As can be seen here, the actv. height limiting speed of driving speed technology to electronlmobil is also lacked at present.
Summary of the invention
The technical matters that the present invention mainly solves is: the defect lacking actv. height limiting speed of driving speed for present electronlmobil, provides a kind of Motor for Electric Automobile driving governor high speed speed-limiting control method.
For solving the problems of the technologies described above, the technical scheme adopted is:
A high speed speed-limiting control method for Motor for Electric Automobile driving governor, is characterized in that: the method is that motor drive controller has high speed Control for Speed Limitation pattern; This driving governor comprises high speed Control for Speed Limitation module, the given module of Das Gaspedal torque, motor control module, motor module and acceleration sensor module; Whether this high speed Control for Speed Limitation module enters high limiting speed of driving speed pattern according to the velocity estimated vehicle that speed sensor records, and the size of the torque given value that the torque given value corresponding according to the degree of depth of Das Gaspedal and high limiting speed of driving speed module export judges whether to exit high limiting speed of driving speed pattern; High limiting speed of driving speed module carries out by the given rotating speed of motor and actual speed the given value generating torque after PI regulates; Accelerator pedal module is for generating the given value of torque controller module torque when motor drive controller does not work in high limiting speed of driving speed pattern; Motor control module is used for the torque given value of high limiting speed of driving speed CMOS macro cell or the given torque value of Das Gaspedal to carry out closed loop control adjustment with actual torque value value of feedback, and the switch of output pwm signal control power device carrys out drive motor; Power needed for motor module runs for generation of electronlmobil; Speed sensor is used for the measurement of required speed signal in high speed overrunning governor and electric machine controller; Motor module is connected with acceleration sensor module, detects the speed of electrical motor; Acceleration sensor module and the given module of Das Gaspedal torque and high speed Control for Speed Limitation model calling, for it provides detection signal; High speed Control for Speed Limitation module is connected with motor control module with the given module of Das Gaspedal torque, for it provides detection signal; Motor control module is connected with motor module, realizes the control to electrical motor.
The high speed speed-limiting control method of Motor for Electric Automobile driving governor of the present invention, there is following effect: the speed of a motor vehicle is once reach the maximum speed of setting, start high speed Control for Speed Limitation pattern, now chaufeur accelerated by the mode of dark accelerator pedal invalid, effectively carry out high limiting speed of driving speed, protect motor bearings, prevent overspeed of vehicle driving, cause the security loss of the person and property; Simultaneously, chaufeur is once there be the action of deceleration (reducing the Das Gaspedal degree of depth), high speed Control for Speed Limitation pattern can exit high speed unrestricted model in time, once it is given by Das Gaspedal to exit high limiting speed of driving speed pattern torque given value, and torque given value can change instead of Spline smoothing linearly, reduces the harmful effect to chaufeur.
accompanying drawing illustrates:
Fig. 1 is the module frame chart of the driving control system of general electronlmobil;
Fig. 2 is the module frame chart of Motor for Electric Automobile driving control system of the present invention;
Fig. 3 is the diagram of circuit that electronlmobil of the present invention starts the method for high limiting speed of driving speed;
Fig. 4 is the diagram of circuit judging whether to exit high limiting speed of driving speed pattern of the present invention;
Mark in figure: high speed Control for Speed Limitation module 10, the given module 20 of Das Gaspedal torque, motor control module 30, motor module 40 and acceleration sensor module 50.
detailed description of the invention:
In order to make object of the present invention, technical scheme and advantage more easily be understood, next by reference to the accompanying drawings and embodiment, the present invention is described in further details.
Fig. 1 is the module frame chart of the driving control system of general electronlmobil; Fig. 2 is the module frame chart of the motor drive controller with high speed speed limiting function used for electric vehicle of the present invention, and this driving governor comprises high speed Control for Speed Limitation module 10, the given module 20 of Das Gaspedal torque, motor control module 30, motor module 40 and acceleration sensor module 50.
Whether this high speed Control for Speed Limitation module 10 enters high limiting speed of driving speed pattern according to the velocity estimated vehicle that speed sensor records; The size of the torque given value that the torque given value corresponding according to the degree of depth of Das Gaspedal and high limiting speed of driving speed module export judges whether to exit high limiting speed of driving speed pattern.High limiting speed of driving speed module 10 carries out by the given rotating speed of motor and actual speed the given value generating torque after PI regulates; Accelerator pedal module 20 is for generating the given value of torque controller module torque when motor drive controller does not work in high limiting speed of driving speed pattern; Motor control module 30 is for carrying out closed loop control adjustment by the torque given value of high limiting speed of driving speed CMOS macro cell or the given torque value of Das Gaspedal and actual torque value value of feedback, and the switch that output pwm signal controls power device carrys out drive motor; Power needed for motor module 40 runs for generation of electronlmobil.Speed sensor 50 is for the measurement of speed signal required in high speed overrunning governor and electric machine controller.
In addition, the present invention also corresponding providing adopt above-mentioned Motor for Electric Automobile driving governor to enter high speed Control for Speed Limitation pattern and exit the diagram of circuit of high speed Control for Speed Limitation pattern.
Refer to Fig. 3, start the diagram of circuit of the method for high limiting speed of driving speed for electronlmobil described in embodiment according to the present invention.The high speed speed-limiting control method that this embodiment provides starts from step Step 301:
In step Step 302, judge whether to enter high speed Control for Speed Limitation pattern according to the actual speed that acceleration sensor module 50 feeds back, be enter step Step 303, otherwise proceed to Step 305;
In step Step 303, be maximum speed by electronlmobil Speed Setting;
In step Step 304, according to the difference of the actual speed that the maximum speed set and the actual speed fed back by acceleration sensor module 50 are come, by the given torque T1 of PI controller regulation output torque controller;
In step Step 305, motor drive controller is not in high limiting speed of driving speed pattern, according to the given torque T2 of accelerator pedal signal computed torque control device;
In step Step 306, the torque given value T2 that the torque given value T1 obtained according to step Step 304 or step Step 305 obtains, the detailed process being carried out drive motor by the switch of electric machine controller output pwm signal control power cell is well known to those skilled in the art, repeats no more here.
Refer to Fig. 4, for judging whether the diagram of circuit exiting high limiting speed of driving speed pattern described in example of the present invention, the flow process of what this embodiment provided exit high speed speed-limiting control method starts from step Step 401:
In step Step 402, judge whether motor drive controller is in high speed Control for Speed Limitation pattern, is, enters step Step 403 according to Step302, otherwise proceed to Step 408;
In step Step 403, according to the difference of the actual speed that the maximum speed set and the actual speed fed back by acceleration sensor module 50 are come, by the given torque T1 of PI controller regulation output torque controller;
In step Step 404, according to the given torque T2 of accelerator pedal signal computed torque control device;
In step Step 405, the size of the torque given value T2 that the torque given value T1 that comparison step Step 403 obtains and step Step 404 obtains;
In step Step 406, according to comparative result in 405, if T1>T2, then enter step Step 407, otherwise forward step Step 403 to, re-execute step Step 403---Step 405;
In step Step 407, judge that motor drive controller has possessed the condition exiting high limiting speed of driving speed, and just torque is given is reduced to T2 linearly by T1;
In step Step 408, the given torque of electric machine controller is given by Das Gaspedal.
The speed of a motor vehicle that the high speed Control for Speed Limitation pattern of described Motor for Electric Automobile driving governor obtains automobile by the tachogen that motor is installed judges whether automobile is in high limiting speed of driving speed pattern, set maximum speed of revolution is reached once the speed of a motor vehicle detected, electric machine controller enters high limiting speed of driving speed pattern, the torque maintained needed for maximum speed of revolution is exported by high limiting speed of driving speed module, now, chaufeur cannot continue to accelerate by Das Gaspedal;
After described Motor for Electric Automobile driving governor enters high speed Control for Speed Limitation pattern, controller all judges carrying out the given instruction of torque of high speed overrunning governor output and the size of the given torque instruction of Das Gaspedal, once the given torque instruction of Das Gaspedal is less than torque that high speed overrunning governor exports to timing, motor drive controller exits high limiting speed of driving speed pattern, the torque instruction of electric machine controller is given by Das Gaspedal, and the speed of a motor vehicle is controlled by chaufeur.
When exiting high limiting speed of driving speed pattern, in order to reduce the impact on chaufeur, torque given value is not the given torque directly being dropped to Das Gaspedal by the Driving Torque of high speed overrunning governor, but dropping to the given torque of Das Gaspedal linearly, the linear slope declined is determined by the characteristic of every money electronlmobil.
Claims (1)
1. a high speed speed-limiting control method for Motor for Electric Automobile driving governor, is characterized in that: the method is that motor drive controller has high speed Control for Speed Limitation pattern; This driving governor comprises high speed Control for Speed Limitation module (10), the given module of Das Gaspedal torque (20), motor control module (30), motor module (40) and acceleration sensor module (50); Whether this high speed Control for Speed Limitation module (10) enters high limiting speed of driving speed pattern according to the velocity estimated vehicle that speed sensor records, and the size of the torque given value that the torque given value corresponding according to the degree of depth of Das Gaspedal and high limiting speed of driving speed module export judges whether to exit high limiting speed of driving speed pattern; High limiting speed of driving speed module (10) carries out by the given rotating speed of motor and actual speed the given value generating torque after PI regulates; Accelerator pedal module (20) is for generating the given value of torque controller module torque when motor drive controller does not work in high limiting speed of driving speed pattern; Motor control module (30) is for carrying out closed loop control adjustment by the torque given value of high limiting speed of driving speed CMOS macro cell or the given torque value of Das Gaspedal and actual torque value value of feedback, and the switch that output pwm signal controls power device carrys out drive motor; Power needed for motor module (40) runs for generation of electronlmobil; Speed sensor (50) is for the measurement of speed signal required in high speed overrunning governor and electric machine controller; Motor module (40) is connected with acceleration sensor module (50), detects the speed of electrical motor; Acceleration sensor module (50) is connected with high speed Control for Speed Limitation module (10) with the given module of Das Gaspedal torque (20), for it provides detection signal; High speed Control for Speed Limitation module (10) is connected with motor control module (30) with the given module of Das Gaspedal torque (20), for it provides detection signal; Motor control module (30) is connected with motor module (40), realizes the control to driving engine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410736548.2A CN104442447A (en) | 2014-12-08 | 2014-12-08 | High speed limit control method of motor drive controller for electrical vehicle |
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| CN201410736548.2A CN104442447A (en) | 2014-12-08 | 2014-12-08 | High speed limit control method of motor drive controller for electrical vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787184A (en) * | 2015-03-30 | 2015-07-22 | 雅迪科技集团有限公司 | Electric vehicle backing and pushing control system and control method thereof |
| CN105711441A (en) * | 2016-01-20 | 2016-06-29 | 奇瑞汽车股份有限公司 | Vehicle speed control method and system |
| CN106080211A (en) * | 2016-07-19 | 2016-11-09 | 合肥威博尔汽车技术有限公司 | A kind of electric automobile overspeed protection method |
| CN107336638A (en) * | 2016-11-30 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | The method and system for preventing electric vehicle from exceeding the speed limit |
| CN108583288A (en) * | 2018-06-04 | 2018-09-28 | 深圳市锐钜科技有限公司 | A kind of method for limiting speed of pure electric vehicle new-energy automobile drive control device |
| CN110884361A (en) * | 2019-12-02 | 2020-03-17 | 武汉理工通宇新源动力有限公司 | Speed limiting method of new energy automobile driving motor and motor driver thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103895530A (en) * | 2012-12-27 | 2014-07-02 | 上海大郡动力控制技术有限公司 | Speed limiting strategy of vehicle-mounted motor control system |
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2014
- 2014-12-08 CN CN201410736548.2A patent/CN104442447A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103895530A (en) * | 2012-12-27 | 2014-07-02 | 上海大郡动力控制技术有限公司 | Speed limiting strategy of vehicle-mounted motor control system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787184A (en) * | 2015-03-30 | 2015-07-22 | 雅迪科技集团有限公司 | Electric vehicle backing and pushing control system and control method thereof |
| CN105711441A (en) * | 2016-01-20 | 2016-06-29 | 奇瑞汽车股份有限公司 | Vehicle speed control method and system |
| CN106080211A (en) * | 2016-07-19 | 2016-11-09 | 合肥威博尔汽车技术有限公司 | A kind of electric automobile overspeed protection method |
| CN107336638A (en) * | 2016-11-30 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | The method and system for preventing electric vehicle from exceeding the speed limit |
| CN107336638B (en) * | 2016-11-30 | 2019-05-07 | 安徽江淮汽车集团股份有限公司 | The method and system for preventing electric vehicle from exceeding the speed limit |
| CN108583288A (en) * | 2018-06-04 | 2018-09-28 | 深圳市锐钜科技有限公司 | A kind of method for limiting speed of pure electric vehicle new-energy automobile drive control device |
| CN110884361A (en) * | 2019-12-02 | 2020-03-17 | 武汉理工通宇新源动力有限公司 | Speed limiting method of new energy automobile driving motor and motor driver thereof |
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Application publication date: 20150325 |