CN109739078A - A kind of wheel speed signal processing redundancy approach - Google Patents
A kind of wheel speed signal processing redundancy approach Download PDFInfo
- Publication number
- CN109739078A CN109739078A CN201811617904.3A CN201811617904A CN109739078A CN 109739078 A CN109739078 A CN 109739078A CN 201811617904 A CN201811617904 A CN 201811617904A CN 109739078 A CN109739078 A CN 109739078A
- Authority
- CN
- China
- Prior art keywords
- wheel speed
- microcontroller
- speed sensors
- speed signal
- circuit
- 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
Abstract
The present invention provides a kind of wheel speed signal processing redundancy approach, the control system used includes connector, wheel speed sensors acquisition the first circuit of IC, wheel speed sensors acquisition IC second circuit, microcontroller one and microcontroller two, sample the wheel speed sensors signal of 4 wheels respectively by using wheel speed sensors acquisition the first circuit of IC and wheel speed sensors acquisition IC second circuit of two different models, treated, and wheel speed signal may be output to microcontroller one and microcontroller two.System uses 2 wheel speed sensors acquisition process application-specific integrated circuits, and when there is 1 application-specific integrated circuit failure, guarantee system still be can detecte to 2 road wheel speed signals.System still can calculate vehicle speed information, and realize electric-control system function by optimization algorithm after a wheel speed sensors acquisition process application-specific integrated circuit fails by two-way wheel speed signal.
Description
Technical field
The present invention relates to vehicle braking fields more particularly to a kind of wheel speed signal to handle redundancy approach.
Background technique
With the gradually development of Auto Electronic Controlled System, Full Vehicle System has all used electronically controlled mode.Wheel speed
Identification information of the signal as electronic control system detection running velocity and travel condition of vehicle, playing on vehicle can not
The effect of substitution.Mode of the conventional electronic control system using a wheel speed sensors processing application-specific integrated circuit, 4 road of acquisition process wheel
Fast signal (4 wheel passenger car) simultaneously submits to microcontroller.After this wheel speed sensors processing application-specific integrated circuit breaks down, electronic control
The wheel speed processing function of system just fails, the disabler of related electronic control system, such as anti-lock braking system disabler.
Summary of the invention
To solve the above-mentioned problems, the object of the present invention is to provide a kind of wheel speed signals to handle redundancy approach, by by 4
The sensor of wheel is acquired processing using two dedicated processes IC, guarantees in the failure of wheel wheel speed signal processing IC
In the case of, whole system can guarantee to obtain the wheel speed signal supply of at least two wheels, and system function can degrade reality
It is existing.
The present invention provides a kind of wheel speed signal processing redundancy approach, and the control system used includes connector, wheel speed sensing
Device acquires the first circuit of IC, wheel speed sensors acquisition IC second circuit, microcontroller one and microcontroller two, by using two
Wheel speed sensors acquisition the first circuit of IC and wheel speed sensors acquisition IC second circuit of different model sample 4 wheels respectively
Wheel speed sensors signal, treated, and wheel speed signal may be output to microcontroller one and microcontroller two.
Further improvement lies in that: the wheel speed sensors acquisition IC first and wheel speed sensors acquire IC second, using not
With the IC of model, homologous failure is avoided, on the calculation of fault model based on functional safety, avoids wheel speed caused by single point failure
Signal Fail.
Further improvement lies in that: the microcontroller one and microcontroller two detect wheel speed sensors acquisition the first electricity of IC
Road, wheel speed sensors acquire the output wheel speed signal of IC second circuit.
Further improvement lies in that: described have all the way that wheel speed sensors acquisition process IC breaks down after failure, microcontroller
One and microcontroller two calculated using still effective two wheel wheel speed signals and export vehicle speed information.
Further improvement lies in that: after a sub- system jam fails, another subsystem exports two wheels
Wheel speed signal can obtain the velocity information of wheel to microcontroller one and microcontroller two, guarantee system.
The program can solve when single point failure occurs for wheel speed sensors acquisition IC, and entire electronic control system is not because can
Obtain wheel speed signal and the problem of loss of function.It the use of the different wheel speed sensors acquisition IC of two models is key of the invention
Point.
In the electric controlled brake system with multiple microcontrollers, multiple microcontrollers detect two wheel speed sensors simultaneously
The output wheel speed signal of IC is acquired, and is verified mutually.Play the redundancy feature of wheel velocity signal capturing and processing.
After wheel speed sensors acquisition IC failure all the way, electric-control system can continue to collect the wheel speed letter of two wheels
Number.It can continue to calculate speed signal, and electric control function may be implemented.
The beneficial effects of the present invention are: system uses 2 wheel speed sensors acquisition process application-specific integrated circuits, when there is 1 application-specific integrated circuit
When failure, guarantee system still be can detecte to 2 road wheel speed signals.2 wheel speed sensors acquisition process that system uses are dedicated
IC is different model, can be to avoid homologous failure mode of the same model IC in design, production.System can take turns at one
After fast sensor acquisition process application-specific integrated circuit failure, vehicle speed information still can be calculated by two-way wheel speed signal, and by excellent
Change algorithm and realizes electric-control system function.
Detailed description of the invention
Fig. 1 is control system schematic diagram of the invention.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the examples below, the embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
As shown in Figure 1, present embodiments providing a kind of wheel speed signal processing redundancy approach, the control system used includes connecing
Plug-in unit 1, wheel speed sensors acquisition the first circuit of IC 2, wheel speed sensors acquisition IC second circuit 3, microcontroller 1 and microcontroller
Device 25, by using wheel speed sensors acquisition the first circuit of IC 2 and wheel speed sensors acquisition the second electricity of IC of two different models
Road 3 samples the wheel speed sensors signal of 4 wheels respectively, and treated, and wheel speed signal may be output to microcontroller 1 and micro-control
Device 25 processed.The wheel speed sensors acquisition IC the 1st and wheel speed sensors acquisition IC the 2nd 3 are kept away using the IC of different model
Exempt from homologous failure, on the calculation of fault model based on functional safety, wheel speed signal caused by single point failure is avoided to fail.It is described
Microcontroller 1 and microcontroller 25 detect wheel speed sensors acquisition the first circuit of IC 2, wheel speed sensors acquisition the second electricity of IC
The output wheel speed signal on road 3.Described have all the way that wheel speed sensors acquisition process IC breaks down after failure, one 4 He of microcontroller
Microcontroller 25 is calculated using still effective two wheel wheel speed signals and exports vehicle speed information.When a subsystem is sent out
After raw malfunction and failure, another subsystem exports the wheel speed signal of two wheels to microcontroller 1 and microcontroller 25, protects
Card system can obtain the velocity information of wheel.
Claims (5)
1. a kind of wheel speed signal handles redundancy approach, it is characterised in that: the control system used includes connector (1), wheel speed biography
Sensor acquires the first circuit of IC (2), wheel speed sensors acquisition IC second circuit (3), microcontroller one (4) and microcontroller two
(5), by using the wheel speed sensors acquisition the first circuit of IC (2) of two different models and wheel speed sensors acquisition the second electricity of IC
Road (3) samples the wheel speed sensors signal of 4 wheels respectively, treated wheel speed signal may be output to microcontroller one (4) and
Microcontroller two (5).
2. a kind of wheel speed signal as described in claim 1 handles redundancy approach, it is characterised in that: the wheel speed sensors acquisition
IC first (2) and wheel speed sensors acquire IC second (3) and avoid homologous failure using the IC of different model, pacify based on function
On full calculation of fault model, wheel speed signal caused by single point failure is avoided to fail.
3. a kind of wheel speed signal as described in claim 1 handles redundancy approach, it is characterised in that: the microcontroller one (4)
IC second circuit (3) are acquired with microcontroller two (5) detection wheel speed sensors acquisition the first circuit of IC (2), wheel speed sensors
Export wheel speed signal.
4. a kind of wheel speed signal as claimed in claim 3 handles redundancy approach, it is characterised in that: described to have wheel speed sensing all the way
Device acquisition process IC breaks down after failure, and microcontroller one (4) and microcontroller two (5) utilize still effective two wheels
Wheel speed signal calculates and exports vehicle speed information.
5. a kind of wheel speed signal as described in claim 1 handles redundancy approach, it is characterised in that: when event occurs for a subsystem
After barrier failure, another subsystem exports the wheel speed signal of two wheels to microcontroller one (4) and microcontroller two (5), protects
Card system can obtain the velocity information of wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617904.3A CN109739078A (en) | 2018-12-28 | 2018-12-28 | A kind of wheel speed signal processing redundancy approach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617904.3A CN109739078A (en) | 2018-12-28 | 2018-12-28 | A kind of wheel speed signal processing redundancy approach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109739078A true CN109739078A (en) | 2019-05-10 |
Family
ID=66361693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811617904.3A Pending CN109739078A (en) | 2018-12-28 | 2018-12-28 | A kind of wheel speed signal processing redundancy approach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109739078A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814269A (en) * | 2022-04-27 | 2022-07-29 | 北京英创汇智科技有限公司 | ABS wheel speed acquisition circuit with double MCU redundancy design |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4656588A (en) * | 1984-04-17 | 1987-04-07 | Nissan Motor Company, Limited | Anti-skid brake control system with a plurality of independently operative digital controllers |
| US5404304A (en) * | 1993-11-19 | 1995-04-04 | Delco Electronics Corporation | Vehicle control system for determining verified wheel speed signals |
| CN101197072A (en) * | 2008-01-09 | 2008-06-11 | 吉林大学 | Wheel velocity signal capturing system |
| US20090192689A1 (en) * | 2008-01-30 | 2009-07-30 | Ford Global Technologies, Llc | Output shaft speed sensor based anti-lock braking system |
| CN201594092U (en) * | 2010-01-20 | 2010-09-29 | 中国铁道科学研究院通信信号研究所 | Novel vehicular speed and range measuring equipment with multiple sensors |
| CN102180163A (en) * | 2011-04-07 | 2011-09-14 | 芜湖伯特利汽车安全系统有限公司 | Vehicle state detecting and controlling method applied to electronic mechanical brake system of motor vehicle |
| CN202502104U (en) * | 2012-03-15 | 2012-10-24 | 奇瑞汽车股份有限公司 | Automobile line control brake wheel speed acquisition circuit |
| CN103941595A (en) * | 2014-05-14 | 2014-07-23 | 芜湖伯特利电子控制系统有限公司 | Vehicle data acquisition simulation system and method |
| CN203902318U (en) * | 2014-06-23 | 2014-10-29 | 长沙新麓思创电子科技有限公司 | Vehicle control unit of electric vehicle |
| CN104494584A (en) * | 2014-11-26 | 2015-04-08 | 广州科密汽车电子控制技术股份有限公司 | Six-channel ABS |
| CN104876076A (en) * | 2015-05-26 | 2015-09-02 | 永大电梯设备（中国）有限公司 | Elevator system provided with elevator wireless communication system with redundant fault-tolerant function |
| CN104903129A (en) * | 2012-12-27 | 2015-09-09 | 罗伯特·博世有限公司 | System and method for monitoring estimated wheel speed of vehicle using transmission output shaft sensor |
| CN105292086A (en) * | 2014-07-11 | 2016-02-03 | 福特全球技术公司 | Failure tolerant vehicle speed |
| CN205059570U (en) * | 2015-08-06 | 2016-03-02 | 罗伯特·博世有限公司 | Response piece, induction element , fast sensing device of wheel and vehicle |
| CN106274308A (en) * | 2015-06-24 | 2017-01-04 | 通用汽车环球科技运作有限责任公司 | Integrated sensing unit and the method being used for determining wheel of vehicle speed and tire pressure |
| CN106394613A (en) * | 2016-10-19 | 2017-02-15 | 中车大连电力牵引研发中心有限公司 | Railway vehicle speed control system and method |
| CN107407910A (en) * | 2015-03-30 | 2017-11-28 | 沃尔沃卡车集团 | Method and apparatus for providing redundancy in vehicle electrically controlling system |
| CN206863515U (en) * | 2017-06-07 | 2018-01-09 | 北京电子科技职业学院 | A kind of redundance type environment protection digital Acquisition Instrument |
-
2018
- 2018-12-28 CN CN201811617904.3A patent/CN109739078A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4656588A (en) * | 1984-04-17 | 1987-04-07 | Nissan Motor Company, Limited | Anti-skid brake control system with a plurality of independently operative digital controllers |
| US5404304A (en) * | 1993-11-19 | 1995-04-04 | Delco Electronics Corporation | Vehicle control system for determining verified wheel speed signals |
| CN101197072A (en) * | 2008-01-09 | 2008-06-11 | 吉林大学 | Wheel velocity signal capturing system |
| US20090192689A1 (en) * | 2008-01-30 | 2009-07-30 | Ford Global Technologies, Llc | Output shaft speed sensor based anti-lock braking system |
| CN201594092U (en) * | 2010-01-20 | 2010-09-29 | 中国铁道科学研究院通信信号研究所 | Novel vehicular speed and range measuring equipment with multiple sensors |
| CN102180163A (en) * | 2011-04-07 | 2011-09-14 | 芜湖伯特利汽车安全系统有限公司 | Vehicle state detecting and controlling method applied to electronic mechanical brake system of motor vehicle |
| CN202502104U (en) * | 2012-03-15 | 2012-10-24 | 奇瑞汽车股份有限公司 | Automobile line control brake wheel speed acquisition circuit |
| CN104903129A (en) * | 2012-12-27 | 2015-09-09 | 罗伯特·博世有限公司 | System and method for monitoring estimated wheel speed of vehicle using transmission output shaft sensor |
| CN103941595A (en) * | 2014-05-14 | 2014-07-23 | 芜湖伯特利电子控制系统有限公司 | Vehicle data acquisition simulation system and method |
| CN203902318U (en) * | 2014-06-23 | 2014-10-29 | 长沙新麓思创电子科技有限公司 | Vehicle control unit of electric vehicle |
| CN105292086A (en) * | 2014-07-11 | 2016-02-03 | 福特全球技术公司 | Failure tolerant vehicle speed |
| CN104494584A (en) * | 2014-11-26 | 2015-04-08 | 广州科密汽车电子控制技术股份有限公司 | Six-channel ABS |
| CN107407910A (en) * | 2015-03-30 | 2017-11-28 | 沃尔沃卡车集团 | Method and apparatus for providing redundancy in vehicle electrically controlling system |
| CN104876076A (en) * | 2015-05-26 | 2015-09-02 | 永大电梯设备（中国）有限公司 | Elevator system provided with elevator wireless communication system with redundant fault-tolerant function |
| CN106274308A (en) * | 2015-06-24 | 2017-01-04 | 通用汽车环球科技运作有限责任公司 | Integrated sensing unit and the method being used for determining wheel of vehicle speed and tire pressure |
| CN205059570U (en) * | 2015-08-06 | 2016-03-02 | 罗伯特·博世有限公司 | Response piece, induction element , fast sensing device of wheel and vehicle |
| CN106394613A (en) * | 2016-10-19 | 2017-02-15 | 中车大连电力牵引研发中心有限公司 | Railway vehicle speed control system and method |
| CN206863515U (en) * | 2017-06-07 | 2018-01-09 | 北京电子科技职业学院 | A kind of redundance type environment protection digital Acquisition Instrument |
Non-Patent Citations (2)
| Title |
|---|
| 苗晓锋,等: "基于容错技术的六通道ABS系统设计", 《机械与电子》 * |
| 陆文昌等: "汽车防抱死制动系统轮速传感器信号处理", 《江苏大学学报(自然科学版)》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814269A (en) * | 2022-04-27 | 2022-07-29 | 北京英创汇智科技有限公司 | ABS wheel speed acquisition circuit with double MCU redundancy design |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102016116698B3 (en) | A failsafe device, a tire pressure measurement system, a vehicle, a method of monitoring, and a computer program | |
| DE4009355A1 (en) | CIRCUIT ARRANGEMENT FOR A MOTOR VEHICLE WITH ANTI-BLOCKING PROTECTION AND / OR DRIVE SLIP CONTROL | |
| CN104487307B (en) | Method for detecting motor vehicles travel direction | |
| CN109278755B (en) | Vehicle road surface gradient calculation method and system | |
| CN104024070B (en) | Method and apparatus for the brakes of the brake apparatus that monitors rail vehicle | |
| EP2203335B1 (en) | Modularly constructed electronic motor vehicle control system | |
| CN104036619B (en) | Fatigue detection method and detecting device based on steering wheel angle data | |
| DE102011016125A1 (en) | Technique for redundantly detecting an actuation of a motor vehicle brake system | |
| CN105164001B (en) | Determine the automotive of the steering angle of the steering column of the vehicles, system and method | |
| CN102582659B (en) | Wheel takies judgment means and determination methods to counting device, track section | |
| CN109050576B (en) | Wheel diameter correction method, device, equipment and readable storage medium | |
| CN101559763A (en) | Automobile brake-by-wire method based on CAN bus communication technology and device thereof | |
| CN109739078A (en) | A kind of wheel speed signal processing redundancy approach | |
| CN104535076B (en) | Antiskid device mileage accumulation method | |
| CN101346270B (en) | Method and device for controlling turning angle of a motor vehicle rear wheel | |
| EP1238877B1 (en) | Vehicle brake device provided with electronics for determining a vehicle referencespeed | |
| CN105774728B (en) | Prevent erroneous detection from going out the system and method for vehicle collision | |
| CN203381628U (en) | Device for detecting transverse instability of train bogies | |
| CN107161033A (en) | The control system and method for wheeled instrument descending speed limit | |
| CN113867395B (en) | Unmanned aerial vehicle take-off wheel monitoring method and system and storage medium | |
| EP1051315B2 (en) | Method and device for controlling or regulating the brake system of a vehicle according to the brake by wire principle | |
| CN103324123B (en) | Vehicle-mounted data pre-processing method based on embedded system | |
| CN110304108B (en) | Axle counting system capable of preventing axle from being lost and axle counting equipment | |
| JP3641419B2 (en) | Tire pressure drop alarm device and method | |
| CN208745981U (en) | A kind of braking system for automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |
|
| RJ01 | Rejection of invention patent application after publication |