CN208306386U - A kind of automobile anti-lock braking condition detecting system for electric vehicle - Google Patents
A kind of automobile anti-lock braking condition detecting system for electric vehicle Download PDFInfo
- Publication number
- CN208306386U CN208306386U CN201820805792.3U CN201820805792U CN208306386U CN 208306386 U CN208306386 U CN 208306386U CN 201820805792 U CN201820805792 U CN 201820805792U CN 208306386 U CN208306386 U CN 208306386U
- Authority
- CN
- China
- Prior art keywords
- motor
- motor speed
- module
- signal
- speed
- 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.)
- Withdrawn - After Issue
Links
Classifications
-
- 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
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Regulating Braking Force (AREA)
Abstract
A kind of automobile anti-lock braking condition detecting system for electric vehicle disclosed by the utility model, comprising: one is mounted on the motor speed sensor in the electric motor of electric car；One motor master controller, the motor master controller include that motor speed calculates module, motor speed smothing filtering module, locking condition judgment module and motor control module.The motor speed calculates module and connect respectively with the motor speed sensor and motor speed smothing filtering module, the locking condition judgment module calculates module with motor speed respectively and motor speed smothing filtering module is connect, and the motor control module is connect with the locking condition judgment module and electric motor respectively.The utility model is realized when the ABS system in electric car does not have the function of being sent out locking state, and electric car still has energy recovery function, increases the safety and stability of electric car.
Description
Technical field
The utility model relates to Control of Electric Vehicles field more particularly to a kind of automobile anti-lock braking state inspections for electric vehicle
Examining system.
Background technique
Anti-lock braking system in automobiles (Antilock Brake System) is one of brake system of car, can
It effectively prevent automotive wheel to occur dragging sliding problem in Motor Vehicle Braking Procedure, promotes stability and the control of brake system of car
Performance processed.
Compared with conventional internal combustion locomotive, the part kinetic energy that electric car recycles when can be by braking is converted into power storage and rises
To use for driving, realize energy conservation and improve course continuation mileage, so that electric car more has competitive advantage.However, when electronic
When the anti-lock braking system work of automobile, in order to guarantee the stability of electric car, need to forbid energy regenerating.
In order to realize above two function, need accurately to detect whether current electric car is in locking state.Mesh
Preceding usually ABS is sent through the bus mode and realizes above-mentioned testing goal.When part ABS does not have through bus but does not limit to
When bus mode is sent out electric car and whether is in locking state, due to cannot be in the case where electric car be in locking state
Forbid energy regenerating, electric car is caused not can be carried out energy regenerating under any state.
On above-mentioned Research foundation, applicant carried out beneficial exploration and trial, has found and solve the above problems
Method, technical solution described below generate in this background.
Utility model content
The technical problem to be solved by the utility model is to: a kind of electric car is provided in view of the deficiencies of the prior art
With automobile anti-lock braking condition detecting system, which realizes is sent out when the ABS system in electric car does not have
When the function of locking state, electric car still has energy recovery function, increases the safety and stability of electric car.
Technical problem to be solved in the utility model can adopt the following technical scheme that realize:
A kind of automobile anti-lock braking condition detecting system for electric vehicle, comprising:
One is mounted on the motor speed sensor for being used to acquire the original revolving speed of motor in the electric motor of electric car, institute
It states motor speed sensor and carries out the original revolving speed of collected motor to be converted to motor speed electric signal and export；
One motor master controller, the motor master controller include that motor speed calculates module, motor speed smothing filtering
Module, locking condition judgment module and motor control module；
The motor speed, which calculates module, has a motor speed signal input terminal and a motor speed signal output end, institute
The motor speed signal input terminal for stating motor speed calculating module is connect with the signal output end of the motor speed sensor, is used
In the motor speed electric signal of the reception motor speed sensor output, and the motor speed electric signal received is counted
Calculation processing, generates the original tach signal V of motor1It is exported；
The motor speed smothing filtering module has a motor speed smothing filtering input terminal and a motor speed smooth
Filtering output end, the motor speed smothing filtering input terminal and the motor speed of the motor speed smothing filtering module calculate
The motor speed signal output end of module connects, and the original revolving speed letter of motor of module output is calculated for receiving the motor speed
Number V1, and to the original tach signal V of the motor received1The disposal of gentle filter is carried out, motor speed smoother signal V is generated2
It is exported；
There is the locking condition judgment module the original tach signal input terminal of a motor, a motor speed smothing filtering to believe
Number input terminal and a locking status signal output, the original tach signal input terminal of the motor of the locking condition judgment module and
Motor speed smoother signal input terminal calculates motor speed signal output end and the institute of module with the motor speed respectively
The motor speed smothing filtering output end connection for stating motor speed smothing filtering module calculates mould for receiving the motor speed
The original tach signal V of motor of block output1With the motor speed smothing filtering letter of motor speed smothing filtering module output
Number V2, and calculate the original tach signal V of motor1With motor speed smoother signal V2Between difference DELTA V=V1-V2, and will
Then motor speed undulating value is compared by difference DELTA V as motor speed undulating value with given threshold, if multiple continuous
The motor speed undulating value of phase is all larger than given threshold every other week, then determines that electric car enters locking state, the locking state
Judgment module is exported locking status signal by the locking status signal output；
The motor control module has a locking status signal output and a motor control signal output end, the electricity
The locking status signal output of machine control module is connect with the locking status signal output of the locking condition judgment module,
The connection of the electric motor of its motor control signal output end and electric car, the motor control module receive the locking shape
After the locking status signal of state judgment module output, anti-lock brake control is carried out to the electric motor of electric car, is moved back simultaneously
Brake energy recovery controls out.
Due to using technical solution as above, the utility model has the beneficial effects that: the ABS in the electric car is not
When having the function of being sent out locking state, electric car still can have energy recovery function.Sentenced by motor speed
Whether vehicle of cutting steam is in locking state, convenient direct and high reliablity.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow diagram of the automobile anti-lock braking condition detection method for electric vehicle of the utility model.
Fig. 2 is the second order filter structure chart of the utility model.
Fig. 3 is the utility model second order filter smothing filtering effect emulation figure.
Fig. 4 is the structural schematic diagram of the detection system of the utility model.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Referring to Fig. 1, what is provided in figure is a kind of automobile anti-lock braking condition detection method for electric vehicle, including following step
It is rapid:
Step 1, the original revolving speed of the motor of electric car is acquired, and the original revolving speed of collected motor is counted
Calculation processing, generates the original tach signal V of a motor1；
Step 2, using the original tach signal V of motor of the second order filter to generation1The disposal of gentle filter is carried out, generates one
A motor speed smoother signal V2。
Wherein, referring to figs. 2 and 3, the transmission function of second order filter are as follows:
Wherein, it be the value range of 5.5~6.6, c is 1.5~2.5 that the value range of a, which is the value range of 0.7~1, b,
The value range of d is 4.5~5.Preferably, the value of a, b, c, d are respectively 1,6,2,5 in the transmission function of second order filter.
Step 3, the original tach signal V of motor is calculated1With motor speed smoother signal V2Between difference DELTA V=V1-
V2, and using difference DELTA V as motor speed undulating value.
Step 4, a motor speed undulating value, and the motor speed that will be exported each time are exported at interval of certain time interval T
Undulating value is compared with given threshold M, if the motor speed undulating value of continuous multiple gap periods X is all larger than given threshold M,
Then determine that electric car enters locking state.Wherein, given threshold M is 100rpm~200rpm.The output of motor speed undulating value
Interval time T be 0.5ms~1.5ms, it is therefore preferable to 1ms.The read-around ratio of the gap periods is 15~25, it is therefore preferable to
20。
Step 5, the electric machine controller of electric car carries out anti-lock brake control, while exiting Brake energy recovery control
System.
Referring to fig. 4, a kind of detection system for realizing above-mentioned automobile anti-lock braking condition detection method for electric vehicle, including electricity
Machine speed probe 100 and motor master controller 200.
Motor speed sensor 100 is mounted in the electric motor of electric car, and electric motor is followed to be rotated, and is used
In the original revolving speed of motor of acquisition electric motor, and carry out the original revolving speed of collected motor to be converted to motor speed electric signal
It is exported.
Motor master controller 200 includes that motor speed calculates module 210, motor speed smothing filtering module 220, locking shape
State judgment module 230 and motor control module 240.
Motor speed, which calculates module 210, has a motor speed signal input terminal and a motor speed signal output end, electricity
The motor speed signal input terminal of machine revolving speed computing module 210 is connect with the signal output end of motor speed sensor 100.Motor
Revolving speed computing module 210 is used to receive the motor speed electric signal of the output of motor speed sensor 100, and to the motor received
Revolving speed electric signal carries out calculation processing, generates the original tach signal V of motor1It is exported.
There is motor speed smothing filtering module 220 a motor speed smothing filtering input terminal and a motor speed smoothly to filter
Wave output terminal, the motor speed smothing filtering input terminal and motor speed of motor speed smothing filtering module 220 calculate module 210
Motor speed signal output end connection.Motor speed smothing filtering module 220 is defeated for receiving motor speed calculating module 210
The original tach signal V of motor out1, and to the original tach signal V of the motor received1The disposal of gentle filter is carried out, motor is generated
Revolving speed smoother signal V2It is exported.
There is locking condition judgment module 230 the original tach signal input terminal of a motor, a motor speed smothing filtering to believe
Number input terminal and a locking status signal output, the original tach signal input terminal of the motor of locking condition judgment module 230 and
Motor speed smoother signal input terminal calculates the motor speed signal output end and motor of module 210 with motor speed respectively
The motor speed smothing filtering output end of revolving speed smothing filtering module 220 connects.Locking condition judgment module 230 is for receiving electricity
The original tach signal V of motor that machine revolving speed computing module 210 exports1The motor exported with motor speed smothing filtering module 220
Revolving speed smoother signal V2, and calculate the original tach signal V of motor1With motor speed smoother signal V2Between difference
Δ V=V1-V2, and using difference DELTA V as motor speed undulating value, then motor speed undulating value is compared with given threshold,
If the motor speed undulating value of continuous multiple gap periods is all larger than given threshold, determine that electric car enters locking state,
Locking condition judgment module 230 is exported locking status signal by the locking status signal output.
Motor control module 240 has a locking status signal output and a motor control signal output end, motor control
The locking status signal output of molding block 240 is connect with the locking status signal output of locking condition judgment module 230,
The connection of the electric motor of motor control signal output end and electric car.Motor control module 240 receives the locking state
After the locking status signal of judgment module output, anti-lock brake control is carried out to the electric motor of electric car, is exited simultaneously
Brake energy recovery control.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (1)
1. a kind of automobile anti-lock braking condition detecting system for electric vehicle characterized by comprising
One is mounted on the motor speed sensor for being used to acquire the original revolving speed of motor in the electric motor of electric car, the electricity
Machine speed probe carries out the original revolving speed of collected motor to be converted to motor speed electric signal and export；
One motor master controller, the motor master controller include motor speed calculate module, motor speed smothing filtering module,
Locking condition judgment module and motor control module；
The motor speed, which calculates module, has a motor speed signal input terminal and a motor speed signal output end, the electricity
The motor speed signal input terminal of machine revolving speed computing module is connect with the signal output end of the motor speed sensor, for connecing
The motor speed electric signal of the motor speed sensor output is received, and the motor speed electric signal received is carried out at calculating
Reason generates the original tach signal V of motor1It is exported；
The motor speed smothing filtering module has a motor speed smothing filtering input terminal and a motor speed smothing filtering
Output end, the motor speed smothing filtering input terminal and the motor speed of the motor speed smothing filtering module calculate module
The connection of motor speed signal output end, the original tach signal of motor of module output is calculated for receiving the motor speed
V1, and to the original tach signal V of the motor received1The disposal of gentle filter is carried out, motor speed smoother signal V is generated2Into
Row output；
The locking condition judgment module has the original tach signal input terminal of a motor, a motor speed smoother signal defeated
Enter end and a locking status signal output, the original tach signal input terminal of the motor of the locking condition judgment module and motor
Revolving speed smoother signal input terminal calculates the motor speed signal output end and the electricity of module with the motor speed respectively
The motor speed smothing filtering output end of machine revolving speed smothing filtering module connects, defeated for receiving the motor speed calculating module
The original tach signal V of motor out1With the motor speed smoother signal V of motor speed smothing filtering module output2,
And calculate the original tach signal V of motor1With motor speed smoother signal V2Between difference DELTA V=V1-V2, and by difference
Then motor speed undulating value is compared by Δ V as motor speed undulating value with given threshold, if continuous multiple every other week
The motor speed undulating value of phase is all larger than given threshold, then determines that electric car enters locking state, the locking state judgement
Module is exported locking status signal by the locking status signal output；
The motor control module has a locking status signal output and a motor control signal output end, the motor control
The locking status signal output of molding block is connect with the locking status signal output of the locking condition judgment module, electricity
The connection of the electric motor of machine control signal output end and electric car, the motor control module receive the locking state and sentence
After the locking status signal of disconnected module output, anti-lock brake control is carried out to the electric motor of electric car, while exiting system
Energy recycling control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820805792.3U CN208306386U (en) | 2018-05-29 | 2018-05-29 | A kind of automobile anti-lock braking condition detecting system for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820805792.3U CN208306386U (en) | 2018-05-29 | 2018-05-29 | A kind of automobile anti-lock braking condition detecting system for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208306386U true CN208306386U (en) | 2019-01-01 |
Family
ID=64715516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820805792.3U Withdrawn - After Issue CN208306386U (en) | 2018-05-29 | 2018-05-29 | A kind of automobile anti-lock braking condition detecting system for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208306386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108725258A (en) * | 2018-05-29 | 2018-11-02 | 创驱（上海）新能源科技有限公司 | A kind of automobile anti-lock braking condition detection method for electric vehicle and its detecting system |
-
2018
- 2018-05-29 CN CN201820805792.3U patent/CN208306386U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108725258A (en) * | 2018-05-29 | 2018-11-02 | 创驱（上海）新能源科技有限公司 | A kind of automobile anti-lock braking condition detection method for electric vehicle and its detecting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110385997B (en) | Energy recovery method and system | |
| CN104842818B (en) | The torque monitoring method and its system of electric automobile | |
| CN106218442B (en) | A kind of electric car max. speed control method and entire car controller | |
| CN109968989B (en) | Vehicle control method and device | |
| CN102120446B (en) | Vehicle ABS control method suitable for various road conditions | |
| CN103863293A (en) | Vehicle parking braking system and control method for same | |
| CN109606124A (en) | Electric car regenerative braking method and device | |
| CN101624018A (en) | Regenerative braking system of electric vehicle and control method thereof | |
| CN206749792U (en) | A kind of pure electric automobile driving cycle discriminating gear | |
| CN205768715U (en) | Pure e-bus braking control system | |
| CN109017441A (en) | A kind of adaptive ramp way control method of new-energy automobile | |
| CN110696632A (en) | Automobile brake feedback method and device and vehicle | |
| CN107097789A (en) | A kind of pure electric automobile driving cycle judgement system | |
| CN208306386U (en) | A kind of automobile anti-lock braking condition detecting system for electric vehicle | |
| CN110348063A (en) | A kind of joint simulation method of Control Strategy for Hybrid Electric Vehicle | |
| CN108545071A (en) | A kind of regenerating brake control method of hydraulic braking and electric braking Collaborative Control | |
| CN101178581A (en) | Integrated control device and method of motorcar chassis | |
| CN105059125B (en) | The brake control method and device of vehicle | |
| CN101323304A (en) | Running status intelligent recognition system for hybrid power electric automobile | |
| CN111516661A (en) | Distributed anti-skid control method and device for railway vehicle | |
| CN112124224B (en) | Electric vehicle control system, electric vehicle control method, storage medium, and electric vehicle | |
| CN203283218U (en) | Relay valve control device and air braking system in hill starting process | |
| CN108725258A (en) | A kind of automobile anti-lock braking condition detection method for electric vehicle and its detecting system | |
| CN104325976B (en) | The energy control method and device of a kind of hybrid vehicle | |
| CN111923888B (en) | Hybrid commercial vehicle braking mode management method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190101 Effective date of abandoning: 20230801 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190101 Effective date of abandoning: 20230801 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |