CN202345754U - Automotive electric power-assisted steering system based on controller area network (CAN) bus - Google Patents
Automotive electric power-assisted steering system based on controller area network (CAN) bus Download PDFInfo
- Publication number
- CN202345754U CN202345754U CN2011204464191U CN201120446419U CN202345754U CN 202345754 U CN202345754 U CN 202345754U CN 2011204464191 U CN2011204464191 U CN 2011204464191U CN 201120446419 U CN201120446419 U CN 201120446419U CN 202345754 U CN202345754 U CN 202345754U
- Authority
- CN
- China
- Prior art keywords
- bus
- system based
- microcontroller
- steering system
- electric booster
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Power Steering Mechanism (AREA)
Abstract
The utility model discloses an automotive electric power-assisted steering system based on a controller area network (CAN) bus. The system comprises an overall CAN bus, a CAN transceiver and a CAN microcontroller which are sequentially communicated with one another. The system is characterized in that an automobile speed acquisition module, an engine rotating speed acquisition module and a steering wheel turning angle torque signal acquisition module are respectively installed at the input end of the CAN microcontroller; and a steering power-assisted controller and an automobile speed display module are respectively arranged at the output end of the CAN microcontroller. The device works based on communication of the CAN microcontroller, can be timely used for reasonable power-assisted steering of an automobile, lightens the operating burden of a driver, and improves the running safety performance of the automobile.
Description
Technical field
The utility model belongs to vehicle electronics and appliance applications technical field, relates to a kind ofly applying the electric boosting steering system of steering auxiliary force, particularly a kind of automobile electric booster steering system based on the CAN bus to auto steerer.
Background technology
Steering swivel system has experienced by pure mechanical manual actuation (MS) and has driven (HPS) to dynamicliquid pressure, arrives the evolution that computer controlled hydraulic-driven (MHPS) and electro-mechanical drive (EPS) again, and wherein EPS compares with other forms of steering swivel system; Energy-conserving and environment-protective are arranged; Simple in structure, in light weight, assist characteristic is adjustable; Good reliability and cost are low, the efficient advantages of higher.A servo steering system is installed on automobile, both can alleviates driver fatigue, can also improve the driving safety performance of automobile.
Along with the development of Power Electronic Technique, people are increasingly high to vehicle energy saving, environmental protection, safe requirement, and the application of electric boosting steering system on automobile also more and more widely.In addition; Automobile vendor is in order to solve the more and more electric system wiring problems of bringing of automobile-used electrical equipment both at home and abroad; Through the CAN bussing technique success of the information between the vehicle mounted electrical apparatus equipment is enjoyed mutually; This makes that not only the automotive electrical system wiring is simple and clear, provides convenient for further developing of automobile electronic system simultaneously.In sum, a automobile electric booster steering system based on the CAN bus of development and Design not only has good system compatibility, and has wide market outlook.
Summary of the invention
The purpose of the utility model is, a kind of automobile electric booster steering system based on the CAN bus is provided, and this device can alleviate driver fatigue, improves the driving safety performance of automobile, and good system compatibility is just arranged.
In order to realize above-mentioned technical assignment, the utility model adopts following technical scheme to be achieved
A kind of automobile electric booster steering system based on the CAN bus; Comprise the car load CAN bus, CAN transceiver and the CAN microcontroller that are interconnected successively; It is characterized in that; At the input end of CAN microcontroller speed data collection module, engine speed acquisition module and steering wheel angle torque signal acquisition module are installed respectively, the mouth of CAN microcontroller is respectively arranged with power steering controller and speed of a motor vehicle display module.
The utility model also has following other technologies characteristics:
It is the 500kbps high-speed CAN bus that described car load CAN bus adopts transfer rate.
Described CAN transceiver adopts PCA82C520.
The SJA1000 that described CAN microcontroller adopts Philips to produce.
Described speed data collection module adopts the Hall-type car speed sensor.
Described steering wheel angle torque signal acquisition module adopts potentiometer type torque rotary angle transmitter LH3.
Described speed of a motor vehicle display module adopts the LED LCDs.
The utility model can carry out rational power steering to automobile, alleviates the operation burden of chaufeur, makes the driving safety performance of automobile be improved.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the control policy diagram of circuit of the utility model.
Below in conjunction with accompanying drawing and embodiment the utility model is done further to specify.
The specific embodiment
Referring to from Fig. 1; The automobile electric booster steering system based on the CAN bus of the utility model; Comprise the car load CAN bus, CAN transceiver and the CAN microcontroller that are interconnected successively; It is characterized in that at the input end of CAN microcontroller speed data collection module, engine speed acquisition module and steering wheel angle torque signal acquisition module are installed respectively, the mouth of CAN microcontroller is respectively arranged with power steering controller and speed of a motor vehicle display module.
When running car; The GES that CAN microcontroller (particularly its built-in CAN controller) collects according to each acquisition module, engine rotational speed signal, steering wheel angle torque signal are selected control policy; Carry out rational power steering, meanwhile can carry out real-time monitoring automobile speed.
The car speed sensor of using in the speed data collection module adopts the Hall-type car speed sensor.The signal of its output is a digital pulse signal.
The steering wheel angle torque signal sensor of using in the steering wheel angle torque signal acquisition module adopts potentiometer type torque rotary angle transmitter LH3.At first section Steering gear during installation, between two sections, load onto torsion bar then, the input shaft position is contained in Steering gear the first half, at last the output shaft position is contained in open circuited Steering gear the latter half with certain torsional stiffness in proper site.
Speed of a motor vehicle display module adopts the LED LCDs.
It is the 500kbps high-speed CAN bus that car load CAN bus adopts transfer rate.
The CAN microcontroller adopts the 8-bit microcontroller of PIC18F458 type,, the also built-in CAN control unit of this microcontroller, it can directly be connected with car load CAN bus as individual node through the CAN transceiver, and it adopts SJA1000.
The CAN transceiver adopts PCA82C520 as bus transceiver, disturbs for fear of signal and can adopt optic coupling element to carry out Signal Spacing.Obstruct for matching bus simultaneously, can distinguish 120 ohm resistor at car load CAN bus two ends.PCA82C520 is the interface that connects microcontroller and bus, and it can also can provide the different performances of accepting for microcontroller for bus provides different transmission performances.It can increase communication distance, and protection CAN bus improves antijamming capability.
Fig. 2 is the control policy diagram of circuit of the utility model of the utility model.After the system initialization normal operation, each acquisition module is started working, and constantly acquired signal is handled through the CAN control unit, and the real-time monitoring speed of a motor vehicle and demonstration.When the absolute value of steering-wheel torque is identical with the cireular frequency rotation direction greater than CAN preset threshold moment of torsion (getting 2Nm under one situation) and steering handwheel angle, select the power operated control pattern.And work as its absolute value greater than the threshold value moment of torsion, but steering handwheel angle and cireular frequency rotation direction are not simultaneously, select back the positive control pattern.When the little threshold value moment of torsion of its absolute value and vehicle speed value are selected the damping master mode during greater than the threshold value speed of a motor vehicle.
This shows that the utility model can be accomplished the reasonable power steering to automobile, alleviates driving fatigue, improve the driving safety performance.
Claims (7)
1. automobile electric booster steering system based on the CAN bus; Comprise the car load CAN bus, CAN transceiver and the CAN microcontroller that are interconnected successively; It is characterized in that; At the input end of CAN microcontroller speed data collection module, engine speed acquisition module and steering wheel angle torque signal acquisition module are installed respectively, the mouth of CAN microcontroller is respectively arranged with power steering controller and speed of a motor vehicle display module.
2. the automobile electric booster steering system based on the CAN bus as claimed in claim 1 is characterized in that, it is the 500kbps high-speed CAN bus that described car load CAN bus adopts transfer rate.
3. the automobile electric booster steering system based on the CAN bus as claimed in claim 1 is characterized in that, described CAN transceiver adopts PCA82C520.
4. the automobile electric booster steering system based on the CAN bus as claimed in claim 1 is characterized in that, the SJA1000 that described CAN microcontroller adopts Philips to produce.
5. the automobile electric booster steering system based on the CAN bus as claimed in claim 1 is characterized in that, described speed data collection module adopts the Hall-type car speed sensor.
6. the automobile electric booster steering system based on the CAN bus as claimed in claim 1 is characterized in that, described steering wheel angle torque signal acquisition module adopts potentiometer type torque rotary angle transmitter LH3.
7. the automobile electric booster steering system based on the CAN bus as claimed in claim 1 is characterized in that, described speed of a motor vehicle display module adopts the LED LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204464191U CN202345754U (en) | 2011-11-11 | 2011-11-11 | Automotive electric power-assisted steering system based on controller area network (CAN) bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204464191U CN202345754U (en) | 2011-11-11 | 2011-11-11 | Automotive electric power-assisted steering system based on controller area network (CAN) bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202345754U true CN202345754U (en) | 2012-07-25 |
Family
ID=46534778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204464191U Expired - Fee Related CN202345754U (en) | 2011-11-11 | 2011-11-11 | Automotive electric power-assisted steering system based on controller area network (CAN) bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202345754U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332115A (en) * | 2013-07-23 | 2013-10-02 | 无锡伊佩克科技有限公司 | Self-adapting acceleration and deceleration device |
| CN103592928A (en) * | 2013-11-25 | 2014-02-19 | 重庆大唐科技股份有限公司 | Turning signal collection device and system based on CAN field bus and vehicle control system |
| CN105035158A (en) * | 2015-06-29 | 2015-11-11 | 奇瑞汽车股份有限公司 | EPS (Electric Power Steering) method and system |
| CN111252136A (en) * | 2020-02-10 | 2020-06-09 | 吉利汽车研究院（宁波）有限公司 | Electric power steering apparatus and control method thereof |
| CN111605607A (en) * | 2020-04-16 | 2020-09-01 | 浙江飞碟汽车制造有限公司 | Steering power-assisted control and priority distribution method during vehicle running |
| CN112744289A (en) * | 2021-02-24 | 2021-05-04 | 华晨鑫源重庆汽车有限公司 | Steering power-assisted control method for anti-interference signals |
-
2011
- 2011-11-11 CN CN2011204464191U patent/CN202345754U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332115A (en) * | 2013-07-23 | 2013-10-02 | 无锡伊佩克科技有限公司 | Self-adapting acceleration and deceleration device |
| CN103332115B (en) * | 2013-07-23 | 2015-08-12 | 无锡伊佩克科技有限公司 | adaptive acceleration and deceleration device |
| CN103592928A (en) * | 2013-11-25 | 2014-02-19 | 重庆大唐科技股份有限公司 | Turning signal collection device and system based on CAN field bus and vehicle control system |
| CN103592928B (en) * | 2013-11-25 | 2016-01-27 | 重庆大唐科技股份有限公司 | Based on the signal for turn harvester of CAN fieldbus, acquisition system and vehicle control system |
| CN105035158A (en) * | 2015-06-29 | 2015-11-11 | 奇瑞汽车股份有限公司 | EPS (Electric Power Steering) method and system |
| CN111252136A (en) * | 2020-02-10 | 2020-06-09 | 吉利汽车研究院（宁波）有限公司 | Electric power steering apparatus and control method thereof |
| CN111605607A (en) * | 2020-04-16 | 2020-09-01 | 浙江飞碟汽车制造有限公司 | Steering power-assisted control and priority distribution method during vehicle running |
| CN112744289A (en) * | 2021-02-24 | 2021-05-04 | 华晨鑫源重庆汽车有限公司 | Steering power-assisted control method for anti-interference signals |
| CN112744289B (en) * | 2021-02-24 | 2022-06-14 | 华晨鑫源重庆汽车有限公司 | Steering power-assisted control method for anti-interference signals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202345754U (en) | Automotive electric power-assisted steering system based on controller area network (CAN) bus | |
| CN202098458U (en) | Electrically-controlled electric four-wheel steering system | |
| CN103359151B (en) | Steering-by-wire steering wheel for vehicle device | |
| CN101695935A (en) | Active steering system combined with electrical power-assisted steering function and control method thereof | |
| CN202294949U (en) | Electric power steering system of off-highway vehicle | |
| CN102673637A (en) | Electric power-assisted steering system for commercial vehicle | |
| CN107253214A (en) | A kind of digital steering wheel of extended pattern and its method of work | |
| CN203078587U (en) | Hydraulic power steering device capable of being remotely controlled and steering system | |
| CN108891480B (en) | Electro-hydraulic power-assisted coupling steering system of fuel passenger car | |
| CN201107600Y (en) | Electronic control type electrodynamic power-assisted steering controller | |
| CN105189277B (en) | Manoeuvre device for vehicle | |
| CN104709342B (en) | Double-motor electric power-assisted steering system and power-assisted steering method thereof | |
| CN204202885U (en) | Electric booster steering controller product automatic detecting table | |
| CN202641837U (en) | Industrial vehicle electronic steering self-return control device | |
| CN203345019U (en) | Vehicle drive-by-wire steering wheel device | |
| CN202071875U (en) | Electric power-assisted steering control system of new energy vehicle | |
| CN104494693A (en) | Mechanical hydraulic power-assisted steering adaptive energy-saving device | |
| CN101298255A (en) | Driver road feel simulating apparatus for automobile steering-by-wire system | |
| CN208630693U (en) | A kind of passenger car electric servo steering device | |
| CN108375480B (en) | Automobile steering system test bed | |
| CN202624358U (en) | Hydraulic power-assisted steering control system | |
| CN201325480Y (en) | Automobile steering power device | |
| CN206926717U (en) | A kind of EPS of changeable power steering pattern | |
| CN211568076U (en) | Telescopic drive-by-wire steering wheel for automatic driving vehicle | |
| CN101941459A (en) | Electric drive power assisted steering system capable of performing drive ratio variation control by motor and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121111 |