CN2647705Y - Electric power-assisted steering device with return control function - Google Patents
Electric power-assisted steering device with return control function Download PDFInfo
- Publication number
- CN2647705Y CN2647705Y CN 03278810 CN03278810U CN2647705Y CN 2647705 Y CN2647705 Y CN 2647705Y CN 03278810 CN03278810 CN 03278810 CN 03278810 U CN03278810 U CN 03278810U CN 2647705 Y CN2647705 Y CN 2647705Y
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- steering wheel
- electric motor
- circuit board
- bearing circle
- control circuit
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Abstract
The utility model relates to an electric power steering gear provided with returnable control function, and mainly operates through the turning of the automobile and the returnability of the steering wheel by dint of a steering wheel torque checkout gear 3, a vehicle speed checkout gear 9, an electric motor 7, a retarding mechanism 4 and a control circuit board 8. When the automobile begins turning, the rotate speed of the electric motor can be calculated according to the terminal voltage of the electric motor and the drive current, and then the turn angle of the steering wheel is acquired through the integrative approach of the rotate speed of the electric motor; when the turning ends, and after the driver releases the steering wheel, the control circuit board 8 forms a control signal based on the estimate turn angle of the steering wheel, thereby controls the electric motor 7 to achieve the purpose of the steering wheel 1 returning smoothly to the meso position. The utility model has the advantages of reducing the measuring elements of the rotate speed or the turn angle of the electric motor and the steering wheel, lowering the cost, easy installation, simple structure and cheap construction cost.
Description
Affiliated technical field
The utility model relates to auto parts and components, refers in particular to a kind of electric booster steering device with aligning control function, can realize the steering operation of automobile, alleviates driver fatigue, and can realize the self-aligning of bearing circle.
Background technology
Returning of bearing circle just mainly adopts following several method to realize in the electric booster steering device in the existing public technology: method one is between electrical motor and speed reduction gearing bidirectional clutch to be housed, and this power-transfer clutch plays the effect of transferring power when steering operation; And automobile returns positive the time, and power-transfer clutch has then played the effect that separates, according to the hand of rotation automatically regulating, describe to some extent in this power-transfer clutch document in early days, but this clutch configuration more complicated, the cost height not too is suitable for electric booster steering device.Method two is to reduce loss due to friction between each parts by system's appropriate design, and the rotor inertia that reduces electrical motor and speed reduction gearing reaches bearing circle and return positive purpose, but this design to mechanical system has proposed quite high requirement.Another method is set up steering wheel angle sensor or bearing circle tachogen exactly, utilizes the computer program control motor that auxiliary aligning torque is provided, and bearing circle can just be returned.Above-mentioned several method has all increased the cost of system architecture element and system development.Patent 99207412.6 and 00262821.X relate to the voluntarily return of bearing circle in the motor turning process, be mainly used in hydraulic power steering system, be unsuitable for electric boosting steering system, and the patent of other relevant electric booster steering device is not all mentioned the return voluntarily of bearing circle.
Summary of the invention
The purpose of this utility model provides the deficiency that can overcome on the prior art, reduces a kind of electric booster steering device with aligning control function of system architecture element and cost of development.
The technical scheme that realizes above-mentioned purpose is:
The utility model comprises electrical motor, speed reduction gearing, control circuit board, and the vehicle speed detector device that is attached to the wheel place, it is characterized in that being provided with the bearing circle torque master that links to each other with bearing circle through the deflector input shaft, and links to each other with control circuit board.
Has certain coupling relation for guaranteeing between electrical motor and the bearing circle simultaneously, permanent combination between electrical motor and the speed reduction gearing.Its structure can adopt motor output shaft directly to link to each other with the input end of speed reduction gearing through spline.
After turning to end, chaufeur release direction dish, control circuit board 8 just forms a control signal based on the steering wheel angle of estimation, and the control motor 7 again, reach the purpose that makes bearing circle 1 get back to meta reposefully.
When automobile begins to turn to, the bearing circle torque master obtains to act on the size and Orientation of torque on the bearing circle by the relative rotation difference between detection deflector input shaft and the output shaft, the bearing circle torque master is input to the dtc signal of detected bearing circle in the control circuit board with the vehicle speed signal that vehicle speed detector device detects, control circuit board calculates the rotating speed that can obtain electrical motor by the terminal voltage and the drive current of electrical motor, again by the mode of motor speed integration is tried to achieve steering wheel angle.By control circuit board according to above-mentioned signal, send the control signal driving motor, the propulsive effort that makes electrical motor by speed reduction gearing slow down increase turn round the back together with the operating effort combined action of chaufeur on the output shaft of deflector, and, realize the rotation of wheel flutter by relevant transmission device.Behind chaufeur release direction dish, same control circuit board just forms a control signal based on the steering wheel angle of estimation, and the control motor makes bearing circle get back to meta reposefully.
Simultaneously in order to adopt estimation approach to try to achieve steering wheel angle, guarantee that the steering wheel angle that calculates is consistent with actual steering wheel angle, adopt motor output shaft directly to link to each other with the input end of speed reduction gearing, the centre does not re-use magnetic clutch, can guarantee to have certain coupling relation between electrical motor and the bearing circle like this, the function of its original magnetic clutch can utilize a relay in the control circuit board to realize.
Useful achievement of the present utility model is on the basis of realizing power steering and return function, has reduced system's element, as bearing circle rotating speed or rotary angle transmitter, and motor speed or rotary angle transmitter, magnetic clutch etc.Because the rotating speed of these electrical motors or the measuring cell of corner need higher cost, and the installation of detecting device is also inconvenient, and the measurement of the drive current of electrical motor and terminal voltage and detection are comparatively convenient, and cost is lower, and can realize in control circuit board.Like this, the rotating speed of electrical motor can calculate acquisition according to the terminal voltage and the drive current of electrical motor, can reduce the cost of exploitation electric booster steering device.Therefore the utility model is simple in structure, easy for installation, cheap.
Further specify the utility model by means of the embodiment that represents in the accompanying drawing below.
Description of drawings
Accompanying drawing 1 is the scheme drawing of embodiment of the present utility model
1-bearing circle 2-input shaft 3-bearing circle torque master 4-speed reduction gearing 5-speed reduction gearing input end 6-motor output shaft 7-electrical motor 8-control circuit board 9-vehicle speed detector device 10-output shaft 11-universal-joint 12-miniature gears 13-tooth bar 14-tierod 15-wheel flutter
The specific embodiment
The utlity model has multiple versions such as Steering gear driving, miniature gears driving and rack drives.
Fig. 1 has schematically represented an embodiment of the present utility model who adopts Steering gear drive configuration form, and it is equipped with electrical motor 7, bearing circle torque master 3, vehicle speed signal detecting device 9, speed reduction gearing 4 and control circuit board 8 etc.Bearing circle torque master 3 links to each other by deflector input shaft 2 equidirectional dishes 1, control circuit board 8 carries out integral operation by the motor speed that computer program is calculated in real time, again divided by the reduction ratio of speed reduction gearing 4, the corresponding relation that has between the rotating speed according to the corner of bearing circle 1 and electrical motor 7 is tried to achieve steering wheel angle.
Like this when bearing circle 1 rotates, 3 torques of continuous detection effect on bearing circle 1 of bearing circle torque master, this dtc signal is input in the control circuit board 8 together with the vehicle speed signal that vehicle speed detector device 9 detects, control circuit board 8 is according to above-mentioned signal, send motor control signal driving motor 7, the propulsive effort of electrical motor 7 by speed reduction gearing 4 slow down increase turn round the back together with the operating effort combined action of chaufeur on the output shaft 10 of deflector, and by universal-joint 11, miniature gears 12 and tooth bar 13, the rotation of bearing circle 1 is transformed into moving of tooth bar 13, promote tierod 14, realize the rotation of wheel flutter 15.After chaufeur release direction dish 1, control circuit board 8 just utilizes the steering wheel angle of estimation, form a control signal based on PID control, control circuit board 8 is according to the burst signal of control signal output pulse width modulation, and then control motor 7 makes bearing circle 1 can get back to meta reposefully.
And between motor output shaft 6 and speed reduction gearing input end 5, do not re-use magnetic clutch, make both permanent combinations, guarantee to have definite coupled relation between electrical motor corner and the steering wheel angle like this, original magnetic clutch can a relay reaches identical effect in the controller by utilizing.
The vehicle speed signal that vehicle speed detector device 9 detects turns to the control normally except that being used for, also played a correcting action to returning positive control, automobile at different moving velocitys next time just adopts different coefficient of corrections, therefore, different speed of operations can obtain the different positive characteristics of returning.
Level of torque and direction that bearing circle torque master 3 detects turn to the control normally except that being used for, and also play and judge back that positive control begins to carry out effect constantly.
The utility model can replace common electric booster steering device, and it not only can make bearing circle just return, and can make bearing circle get back to meta reposefully, has improved the maneuvering performance of automobile and the road feel of chaufeur.
Claims (3)
1. electric booster steering device with aligning control function, it comprises electrical motor (7), speed reduction gearing (4), control circuit board (8), and the vehicle speed detector device (9) that is attached to the wheel place, it is characterized in that being provided with the bearing circle torque master (3) that links to each other with bearing circle (1) through deflector input shaft (2), and link to each other with control circuit board (8).
2. a kind of electric booster steering device with aligning control function according to claim 1 is characterized in that permanent combination between electrical motor (7) and the speed reduction gearing (4).
3. a kind of electric booster steering device with aligning control function according to claim 1 is characterized in that motor output shaft (6) directly links to each other with the input end (5) of speed reduction gearing (4) through spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03278810 CN2647705Y (en) | 2003-09-27 | 2003-09-27 | Electric power-assisted steering device with return control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03278810 CN2647705Y (en) | 2003-09-27 | 2003-09-27 | Electric power-assisted steering device with return control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2647705Y true CN2647705Y (en) | 2004-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03278810 Expired - Fee Related CN2647705Y (en) | 2003-09-27 | 2003-09-27 | Electric power-assisted steering device with return control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2647705Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450852C (en) * | 2005-06-22 | 2009-01-14 | 比亚迪股份有限公司 | Steering mechanism for vehicular drive-by-wire system and its steering drag simulator |
| CN101973313A (en) * | 2010-10-27 | 2011-02-16 | 江苏大学 | Device and method for stable steering control of vehicles based on self-autonomous body technology |
| CN102009688A (en) * | 2010-12-17 | 2011-04-13 | 江苏大学 | Brushless direct current motor-assisted electric power steering controller and control method thereof |
| WO2011054186A1 (en) * | 2009-11-05 | 2011-05-12 | Fu Liming | Hydraulic steering control valve |
| CN102717826A (en) * | 2012-06-25 | 2012-10-10 | 汽车零部件研究及发展中心有限公司 | Method for aligning control of electric power steering system for vehicle |
| CN102941875A (en) * | 2012-11-19 | 2013-02-27 | 上汽通用五菱汽车股份有限公司 | Estimation method for angle of steering wheel of electric power steering system |
| CN103523077A (en) * | 2013-10-28 | 2014-01-22 | 北京经纬恒润科技有限公司 | Aligning method and device of electric power steering system |
| CN101990509B (en) * | 2008-04-02 | 2014-10-29 | 丰田自动车株式会社 | Vehicular steering control apparatus |
| CN106347450A (en) * | 2016-11-15 | 2017-01-25 | 北京经纬恒润科技有限公司 | Automobile steering wheel aligning compensation method and device |
| CN111216788A (en) * | 2020-02-21 | 2020-06-02 | 株洲易力达机电有限公司 | Electric power steering fuzzy correction method |
-
2003
- 2003-09-27 CN CN 03278810 patent/CN2647705Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450852C (en) * | 2005-06-22 | 2009-01-14 | 比亚迪股份有限公司 | Steering mechanism for vehicular drive-by-wire system and its steering drag simulator |
| CN101990509B (en) * | 2008-04-02 | 2014-10-29 | 丰田自动车株式会社 | Vehicular steering control apparatus |
| WO2011054186A1 (en) * | 2009-11-05 | 2011-05-12 | Fu Liming | Hydraulic steering control valve |
| CN102282059A (en) * | 2009-11-05 | 2011-12-14 | 傅黎明 | Hydraulic steering control valve and inversely self-locking steering system |
| CN102282059B (en) * | 2009-11-05 | 2014-11-05 | 傅黎明 | Hydraulic steering control valve and inversely self-locking steering system |
| CN101973313A (en) * | 2010-10-27 | 2011-02-16 | 江苏大学 | Device and method for stable steering control of vehicles based on self-autonomous body technology |
| CN101973313B (en) * | 2010-10-27 | 2014-05-28 | 江苏大学 | Device and method for stable steering control of vehicles based on self-autonomous body technology |
| CN102009688A (en) * | 2010-12-17 | 2011-04-13 | 江苏大学 | Brushless direct current motor-assisted electric power steering controller and control method thereof |
| CN102009688B (en) * | 2010-12-17 | 2013-03-20 | 江苏大学 | Control method of brushless direct current motor-assisted electric power steering controller |
| CN102717826B (en) * | 2012-06-25 | 2015-08-26 | 香港生产力促进局 | The method of Vehicular electric servo steering system rotary transform tensor |
| CN102717826A (en) * | 2012-06-25 | 2012-10-10 | 汽车零部件研究及发展中心有限公司 | Method for aligning control of electric power steering system for vehicle |
| CN102941875A (en) * | 2012-11-19 | 2013-02-27 | 上汽通用五菱汽车股份有限公司 | Estimation method for angle of steering wheel of electric power steering system |
| CN103523077A (en) * | 2013-10-28 | 2014-01-22 | 北京经纬恒润科技有限公司 | Aligning method and device of electric power steering system |
| CN103523077B (en) * | 2013-10-28 | 2015-08-12 | 北京经纬恒润科技有限公司 | A kind of time correction method and device of electric boosting steering system |
| CN106347450A (en) * | 2016-11-15 | 2017-01-25 | 北京经纬恒润科技有限公司 | Automobile steering wheel aligning compensation method and device |
| CN106347450B (en) * | 2016-11-15 | 2019-06-04 | 北京经纬恒润科技有限公司 | A kind of method and device that car steering wheel time is just compensating |
| CN111216788A (en) * | 2020-02-21 | 2020-06-02 | 株洲易力达机电有限公司 | Electric power steering fuzzy correction method |
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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: 20041013 Termination date: 20100927 |