CN203854717U - Electric power steering system - Google Patents
Electric power steering system Download PDFInfo
- Publication number
- CN203854717U CN203854717U CN201420265524.9U CN201420265524U CN203854717U CN 203854717 U CN203854717 U CN 203854717U CN 201420265524 U CN201420265524 U CN 201420265524U CN 203854717 U CN203854717 U CN 203854717U
- Authority
- CN
- China
- Prior art keywords
- steering
- steering column
- steering system
- electric power
- electric boosting
- 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.)
- Active
Links
Abstract
The utility model discloses an electric power steering system which comprises a steering wheel, a steering column driven by the steering wheel, a steering gear connected with the steering column, and a power system. The power system comprises a motor, a clutch, a deceleration mechanism, a torque sensor and an electronic control unit. The electric power steering system is characterized in that the power system is mounted on the steering column. The electric power steering system has the advantages that the electric power steering is used in coordination with a PID controller matched with motor drive, a whole vehicle is good in operability at high speed or low speed and on input or feedback through accurate matching and test calibration, the minimum steering radius of the whole vehicle is reduced greatly after structural optimization, and mobility of the whole vehicle is increased.
Description
technical field:
The utility model relates to electric vehicle engineering field, especially relates to a kind of electric boosting steering system.
background technology:
Steering swivel system is for example, in vehicle (automobile) structure very important component part, is in order to make automobile can keep or change according to driver's wish the travel direction of vehicle, and steering swivel system mainly contains the manual steering system servo steering system of unifying.Along with the development of vehicle technology, the use of servo steering system is very universal, is exactly the most typically wherein hydraulic power-assist steering system.But the problem of current protection of the environment more and more enjoys people to pay close attention to, therefore, it is electric boosting steering system and the line traffic control servo steering system of power-assisted source that each large Automobile manufacturing commercial city, the world has been developed based on motor around this problem.
Electric boosting steering system has lot of advantages, such as: (1) accurate steering reversal; (2) size of power-assisted can be adjusted according to the variation of the speed of a motor vehicle, thus the directional balance when manipulation portability can take into account vehicle low speed time and high speed; (3) do not exist due to the pollution that uses hydraulic oil may cause environment; (4) electric powered steering can reduce engine power consumption, save fuel oil etc.Therefore, electric boosting steering system is than discharging in the energy-conserving and environment-protective more of conventional hydraulic servo steering system, superior performance, minimizing, can there is not the phenomenon contaminated environment such as leakage of oil yet, meet the demand of social development, can predict, electric boosting steering system is by the main development direction that is future automobile steering swivel system.
At present, the force aid system in most electric boosting steering system is arranged in deflector conventionally,
utility model content:
The technical matters that the utility model solves is to provide a kind of electric boosting steering system.
The technical solution of the utility model is: a kind of electric boosting steering system, comprise bearing circle, the steering column that bearing circle drives, the deflector that steering column connects, and the force aid system being formed by electrical motor, power-transfer clutch, speed reduction gearing, torque sensor and electronic control unit, it is characterized in that: described force aid system is arranged on steering column.
Further, described torque sensor is arranged in steering column.
Further, described steering column is complete energy-absorption type variable-angle steering column.
Further, described electrical motor is permanent magnet direct current motor.
The beneficial effects of the utility model are: steering swivel system adopts electric power steering, be equipped with motor and drive the PID controller adapting, by accurate coupling and Experimental Calibration, be at high speed or low speed no matter make car load, in input or feedback, all have good handling; In addition, after structure optimization, the minimum turning radius of car load significantly reduces, and has increased the manoevreability of car load.
brief description of the drawings:
Fig. 1 is structural representation of the present utility model.
detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in figure mono-, in electric boosting steering system, directly drive steering column 2 by steering wheel rotation 1, torque sensor 8 in steering column 2 detects after the moment and position signal on steering shaft, together with recording vehicle speed signal with car speed sensor, constantly input electronic control unit 4, the PID controller integrating with electronic control unit 4 is according to the given numerical analysis of electronic control unit 4 and actual data deviation, then deviation is adjusted, electronic control unit 4 is contained in hand of rotation and the power-assisted size of current of the electrical motor 6 of steering shaft one side according to the signal deciding of input, and by power-transfer clutch 7 and speed reduction gearing 3, auxiliary power is applied in steering inner articulated shaft 9, steering inner articulated shaft 9 drives deflector 5 to control Vehicular turn.
By force aid system being arranged on steering column 2, can make electric boosting steering system simple and compact for structure, be easy to install.
In electronic control unit 4 PID controller before vehicle dispatches from the factory through overmatching, this coupling is by test gather data, carry out parameter matching by software, the turn radius of general vehicle is more than 5 meters, and use the electric boosting steering system turn radius that has passed through PID controller coupling 4.8 meters of left and right, road-holding property when ease of steering while making vehicle take into account low speed and high speed, return performance is good.The power steering size that traditional hydraulic power-assist steering system provides can not change with the raising of the speed of a motor vehicle, although so just make vehicle there is good ease of steering in the time of low speed, but steering handwheel is too light in the time running at high speed, generation turns to the phenomenon of " unstable ", chaufeur lacks " road feel " significantly, has reduced vehicle stability while running at high speed and the sense of security of chaufeur.
Torque sensor 8 is arranged in steering column, has utilized greatly the clearance spaces in steering column 2, reduce the volume of steering swivel system.
By using complete energy-absorption type variable-angle steering column, in the time of collision happens, this steering column by with human body collision process in can compressedly be out of shape, extended both interaction time, reduce the injured degree of chaufeur in collision process.
In the utility model, the inner permanent magnet direct current motor that adopts of force aid system, this kind of electrical motor can change armature voltage and carry out speed governing easily, compared with separated exciting DC motor, has the advantages such as volume is little, efficiency is high, simple in structure, copper consumption is few.
Claims (4)
1. an electric boosting steering system, comprise bearing circle, the steering column that bearing circle drives, the deflector that steering column connects, and the force aid system being formed by electrical motor, power-transfer clutch, speed reduction gearing, torque sensor and electronic control unit, it is characterized in that: described force aid system is arranged on steering column.
2. electric boosting steering system according to claim 1, is characterized in that: described torque sensor is arranged in steering column.
3. electric boosting steering system according to claim 1, is characterized in that: described steering column is complete energy-absorption type variable-angle steering column.
4. electric boosting steering system according to claim 1, is characterized in that: described electrical motor is permanent magnet direct current motor, and motor rotor is strong permanent magnetic formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420265524.9U CN203854717U (en) | 2014-05-23 | 2014-05-23 | Electric power steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420265524.9U CN203854717U (en) | 2014-05-23 | 2014-05-23 | Electric power steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203854717U true CN203854717U (en) | 2014-10-01 |
Family
ID=51604587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420265524.9U Active CN203854717U (en) | 2014-05-23 | 2014-05-23 | Electric power steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203854717U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991473A (en) * | 2014-05-23 | 2014-08-20 | 河南速达电动汽车科技有限公司 | Electric power steering system |
| US10093345B1 (en) * | 2017-03-21 | 2018-10-09 | GM Global Technology Operations LLC | System and method for testing a hands-off clutch for a steering hardware-in-loop (HIL) system |
| CN110550100A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Steering system and vehicle |
-
2014
- 2014-05-23 CN CN201420265524.9U patent/CN203854717U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991473A (en) * | 2014-05-23 | 2014-08-20 | 河南速达电动汽车科技有限公司 | Electric power steering system |
| US10093345B1 (en) * | 2017-03-21 | 2018-10-09 | GM Global Technology Operations LLC | System and method for testing a hands-off clutch for a steering hardware-in-loop (HIL) system |
| CN110550100A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Steering system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111152835B (en) | Drive-by-wire electro-hydraulic steering system based on double-winding motor and hybrid control method | |
| CN104401388A (en) | Intelligent electro-hydraulic steering system | |
| CN206704290U (en) | A kind of steering mechanism for pilotless automobile | |
| CN101807079B (en) | Unmanned vehicle steering automatic control device based on electric power-assisted steering system | |
| CN102229347B (en) | Electric power-assisted steering system of electric vehicle and power-assisted steering method thereof | |
| CN202098458U (en) | Electrically-controlled electric four-wheel steering system | |
| CN202294949U (en) | Electric power steering system of off-highway vehicle | |
| CN203854717U (en) | Electric power steering system | |
| CN201580431U (en) | Electric control and electric four-wheeled steering (4WS) device of electric vehicle | |
| CN202508145U (en) | Automobile electric power-assisted steering system | |
| CN106741132B (en) | Controller of multi-mode active steering system and control method thereof | |
| CN102530061A (en) | Carrier-and-stacker with electric power steering | |
| CN201677919U (en) | Energy-saving steering power assisting device | |
| CN103991473A (en) | Electric power steering system | |
| CN110962919A (en) | Active electro-hydraulic coupling steering system and vehicle | |
| CN205149964U (en) | Electronic power assisted steering device of EPS of positive function is initiatively returned in area | |
| CN210027576U (en) | Electric power steering system for automobile | |
| CN202624358U (en) | Hydraulic power-assisted steering control system | |
| CN207773223U (en) | The electric power-assisted steering apparatus of integrated semiautomatic parking function | |
| CN204279606U (en) | Pure electric coach Electro-Hydraulic Power Steering System | |
| CN208698867U (en) | A kind of electro-hydraulic power-assisted coupling steering system of fuel oil car | |
| CN103121468A (en) | Novel energy-saving type electronic control power-assisted steering system | |
| CN103029746B (en) | Motor turning non-overshoot electromagnetic assistor | |
| CN105128931A (en) | Automobile automatic steering device | |
| CN201882140U (en) | Electric power steering system of electromobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |