CN102530051A - Tubular column type electric power steering column employing novel torque sensor - Google Patents
Tubular column type electric power steering column employing novel torque sensor Download PDFInfo
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- CN102530051A CN102530051A CN2010105973023A CN201010597302A CN102530051A CN 102530051 A CN102530051 A CN 102530051A CN 2010105973023 A CN2010105973023 A CN 2010105973023A CN 201010597302 A CN201010597302 A CN 201010597302A CN 102530051 A CN102530051 A CN 102530051A
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Abstract
The invention discloses a tubular column type electric power steering column employing a novel torque sensor, aiming at solving the problems of poor signal acquisition precision and short service life of the existing C-EPS (column-type electric power steering) torque sensor. The tubular column type electric power steering column employing the novel torque sensor in the invention comprises a controller, the novel torque sensor, an electric motor, a speed reducing mechanism and a mechanical part of a steering shaft, wherein the torque sensor installed on the mechanical part of the steering shaft is a dual-output torque sensor; signals in the torque sensor are from two relatively rotating rotors installed on the steering shaft; the two rotors are respectively installed on an output shaft I and an input shaft II; and the two rotors are connected by a torque rod. An installation structure employing the torque sensor aims at overcoming defects of the exsiting domestic C-EPS torque sensor, such as poor signal collection precision, short service life, a maintenance demand in a use process and incapability of introducing position signals.
Description
Technical field
The present invention relates to the automobile steering system technical field, especially a kind of pipe column type electric servo-steering post that adopts New-type Torque Sensor.
Background technology
Automobile steering system has experienced mechanical type, fluid pressure type, the liquid mixed transformation of arriving electric boosting steering system again of electricity.Universal day by day along with automobile, the performance of vehicle has been related to many economic society problems such as lives and properties, safety traffic, energy environment protection, economic benefit.
Automobile steering system mainly is mechanical type, fluid pressure type now.Though the mechanical type steering swivel system is simple in structure, cost is lower, turn to comparatively heavyly, stability is not high; In order to address these problems, hydrostatic steering system has obtained very big development in recent years, has improved mechanical type steering swivel system hard steering problem.Simultaneously, hydrostatic steering system has also brought problems.Hydraulic power-assist steering system and electric liquid mix servo steering system all will be with hydraulic oil as power resources; The inside relates to oil pipe, oil pump, oil tank etc. zero, parts; Have zero, number of components is many, difficult installation and layout, efficient are low, environment is had problems such as pollution.And hydrostatic steering system is stable, safety is not high.Such as: when low speed is exercised, turn to comparatively lightly, but there is power-assisted equally in high speed driving, and this has just produced to turn to and has kicked the beam, and lacks problems such as road feel.Therefore, automobile vendor and scientific research institution are all in the new servo steering system of exploitation both at home and abroad at present, and electric boosting steering system is exactly one of them, the English EPS (Electronic Power Steering) that is called for short of electric boosting steering system.
Automobile EPS is the last word of China's auto trade, belongs to 2002 four ministries and commissions and unites the automobile new high-tech product register item that the encouragement that issues is joint, introduce.It has represented the direction of the world and China's automobile steering system development.It is energy saving products, environment-friendly products, is the electronic product of automobile new and high technology.
Automobile EPS mainly is divided into 4 types according to the position of propulsion source: pipe column type electric servo steering system (being called for short C-EPS), pinion type electric boosting steering system (being called for short P-EPS), tooth bar booster type electric servo steering system (being called for short R-EPS), circular ball type electric servo steering system (being called for short S-EPS).Wherein, C-EPS is divided into 2 types according to the difference of torque signal acquisition mode: the C-EPS that adopts the novel torque sensing technology of C-EPS, employing of traditional torque sensing technology.Adopt the C-EPS signal transmission link of traditional torque sensing technology many and not direct, passed through the crank motion that rotatablely moves again to the process that rotatablely moves, the error of acquisition of signal is bigger; Owing in signal acquisition process, have more friction position, cause mechanical wear easily, so after using one section mileage, acquisition of signal is distortion often, need keep in repair.Traditional torque sensor can not be introduced position (angle) signal.What it adopted is conductive plastic carbon film and steel wire carbon brush, and service life is shorter relatively.
Summary of the invention
The purpose of this invention is to provide a kind of pipe column type electric servo-steering post that adopts New-type Torque Sensor; Overcome that domestic existing pipe column type electric servo-steering post torque sensor signal acquisition precision is not high, the life-span is long, need repairing, can not introduce the shortcoming of position signal in the use, have that acquisition precision height, life-span are long, freedom from repairs in the use, can introduce the pipe column type electric servo-steering column device of position signal.
In order to reach above-mentioned design goal, the technical scheme that the present invention adopts is following:
A kind of pipe column type electric servo-steering post that adopts New-type Torque Sensor; Comprise: controller, motor, speed reduction gearing, torque sensor, steering shaft assembly; Said torque sensor is installed in the mechanics of steering shaft, is the torque sensor of a kind of dual output orientation sensing, dual output torque signal; The signal of torque sensor come from install on the assembly on the steering shaft two in relative rotation rotor one be installed in respectively on output shaft and the input shaft with two, two rotors of rotor, link by the steering shaft assembly between two rotors.
In a specific embodiment; Said steering shaft assembly comprises output shaft, output pivot pin, bearing, turbine, input shaft, input pivot pin, torsion bar, castellated shaft; The outer side joint bearing of wherein said output shaft, turbine press-fits on output shaft, and turbine is connected through speed reduction gearing with the aforementioned motor output shaft; Said output shaft, input shaft form fixing respectively through rotor one, rotor two and torque sensor, the input shaft left end portion is nested with in output shaft; Said input shaft, torsion bar, castellated shaft are riveted together.
Preferable, there are certain rotational angle in output shaft and input shaft in the said steering shaft assembly, are 5.5 °, and the rigidity of aforementioned torsion bar is 2.8-3.1NM/ °.
More specifically, the installation process of said steering shaft and associated component is following:
The first step is fitted in bearing, turbine on the output shaft;
In second step, after input shaft, torsion bar, castellated shaft press-fited, in the boring of input shaft relative position and be pressed into the input pivot pin, input shaft, torsion bar, castellated shaft are riveted together;
In the 3rd step, torque sensor one side is assembled on the output shaft after the first step is accomplished;
The 4th step was assembled to the torque sensor opposite side on the input shaft after second step accomplished, and simultaneously, torsion bar gets in the endoporus of output shaft;
In the 5th step, the boring of output shaft relative position also is pressed into the output pivot pin.
In a specific embodiment, said rotor one is provided with the output locating dowel pin, and said output locating dowel pin cooperates with output shaft to form locatees; The input locating dowel pin is arranged on the rotor two, and said input locating dowel pin cooperates with input shaft to form locatees.
Preferable, said rotor one periphery is made of plastics, and circle is " rectangle " shape in the outstanding rotor one of output locating dowel pin, and the output shaft position is corresponding with rotor one, and the position that output shaft is installed in rotor one is the straight burr spline, maximum outside diameter is 24.25mm; Also be provided with the output shaft positioning groove on the aforementioned output shaft, the output locating dowel pin matches with the output shaft positioning groove rotor one and output shaft is fixed.
More specifically, the internal diameter size of said rotor one is φ 24mm, and output locating dowel pin width is 1.96mm, and said output shaft positioning groove is 10.150-10.350mm apart from output shaft line of centers minor increment, and wide is 2.1-2.2mm.
Preferable, said rotor two peripheries are made of plastics, circle in the outstanding rotor two of input locating dowel pin; The input locating dowel pin is made up of upper and lower two parts, and the lower part is " trapezoidal " shape, and top is " rectangle " and is superimposed upon the lower part end face; The width on top " rectangle " is less than the trapezoidal end face in lower part; Aforementioned input shaft position is corresponding with rotor two, also is provided with the input shaft positioning groove on the input shaft, and the input locating dowel pin matches with the input shaft positioning groove rotor two and input shaft are fixed.
More specifically, said rotor two internal diameter sizes are φ 22.5-φ 22.6mm, and the trapezoidal angle of input locating dowel pin is 28 ° and highly is not more than 0.89mm that width is not more than 1.98mm; The input shaft positioning groove is approximate " trapezoidal " shape, and its width is not more than 3.9mm, and trapezoidal angle is 27.75 °-28.25 °, is 8.15-8.35mm apart from input shaft line of centers minor increment.
The beneficial effect of the pipe column type electric servo-steering post of employing New-type Torque Sensor of the present invention is: because C-EPS device acquisition of signal provided by the invention partly adopts the torque sensor of novel two-way output; The signal of torque sensor comes from install on the steering shaft two rotors in relative rotation; Link by torsion bar between the rotor; Measure the angle that turns to following two relative rotation of rotor of hand-power effect, can know torque; This phase difference and torque are in direct ratio; It also has position output simultaneously; Its acquisition precision is high, the life-span is long, freedom from repairs in the use, can introduce position signal, and its actv. has ensured the precision of controller control current of electric, and it is that the C-EPS device provides accurate power-assisted basis.
Description of drawings
Fig. 1 is the scheme drawing of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention;
Fig. 2 is the scheme drawing of steering shaft assembly of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention;
Fig. 3 is the cutaway view of steering shaft assembly of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention;
Fig. 4 a is the input shaft structural representation of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention;
Fig. 4 b is the input shaft A-A face cutaway view of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention;
Fig. 5 a is the scheme drawing of output shaft of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention;
Fig. 5 b is the output shaft left view of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention;
Fig. 6 is the input shaft and the output shaft connection location cutaway view of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention;
Fig. 7 is the structural representation of rotor one of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention;
Fig. 8 is the structural representation of rotor two of the pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention.
The specific embodiment
Do further detailed description in the face of optimum implementation of the present invention down.
Like Fig. 1,7, shown in 8; The pipe column type electric servo-steering post of the described employing New-type Torque Sensor of the embodiment of the invention; Comprise controller 1, torque sensor 2 (the present invention adopt be the LH3 type torque sensor that BI scientific & technical corporation is produced), motor 3, speed reduction gearing 4, steering shaft assembly 5, said steering shaft assembly 5 connects motors 3 through speed reduction gearing 4, and motor 3 drives steering shaft assemblies 5; Mounting torque sensor 2 on the steering shaft assembly 5, torque sensor 2 also link to each other with controller 1; Said torque sensor 2 is signal acquisition module, and controller 1 is a signal processing module, and motor 3 is execution modules, and speed reduction gearing 4 plays deceleration and increases and turn round, and steering shaft assembly 5 links together each parts of acquisition of signal, signal conditioning, execution action; The signal of torque sensor 2 comes from install on the assembly on the steering shaft two and is linked by steering shaft assembly 5 between rotor 1 and rotor 27, two rotors in relative rotation.
Like Fig. 2, shown in Figure 3; Said steering shaft assembly 5 comprises output shaft 51, output pivot pin 511, bearing 52, turbine 53, input shaft 54, input pivot pin 541, torsion bar 55, castellated shaft 56; Said output shaft 51 outsides bearing 52 that is coupling; Turbine 53 press-fits on output shaft 51, and turbine 53 is connected through speed reduction gearing 4 with motor output shaft, and said output shaft 51 right-hand members connect input shaft 54 through torque sensor 2; Output shaft 51 is fixing with torque sensor 2 respectively with input shaft 54, and input shaft 54 left end portion are nested with in output shaft 51; Said input shaft 54, torsion bar 55, castellated shaft 56 are riveted together.
This structure can be accomplished by following assemble: the first step is fitted in bearing 52, turbine 53 on the output shaft 51; In second step, after input shaft 54, torsion bar 55, castellated shaft 55 press-fited, in the boring of input shaft 54 relative positions and be pressed into input pivot pin 541, input shaft 54, torsion bar 55, castellated shaft 56 are riveted together; In the 3rd step, the side of torque sensor 2 with the meta locating dowel pin is assembled on the output shaft 51 after the first step is accomplished; The 4th step, be with a side of meta locating dowel pins to be assembled on the input shaft 54 after second step accomplished torque sensor 2, simultaneously, torsion bar 55 gets in the endoporus of output shafts 51; In the 5th step, the boring of output shaft 51 relative positions also is pressed into output pivot pin 7.
Like Fig. 4 a, Fig. 4 b, 5a, Fig. 5 b, Fig. 6, Fig. 7, shown in Figure 8, the signal of torque sensor 2 comes from install on the steering shaft two and is linked by torsion bar (selecting torque spring for use) between rotor 1 and rotor 27, two rotors in relative rotation.Measure the angle (phase difference) that turns to following two relative rotation of rotor of hand-power effect, can know torque, this phase difference and torque are in direct ratio; Output locating dowel pin 61 is arranged on the rotor 1, and aforementioned output shaft 51 also is provided with output shaft positioning groove 512, and output locating dowel pin 61 matches with output shaft positioning groove 512 and makes rotor 1 fixing with output shaft 51; Input locating dowel pin 71 is arranged on the rotor 27, and aforementioned input shaft 54 also is provided with input shaft positioning groove 542, and input locating dowel pin 71 matches with input shaft positioning groove 542 and makes rotor 27 fixing with input shaft 54; The cooperation of two rotors makes the torque drive axle can not keep concentricity operation, and can not produce unfair stress or influence precision.It can export two torque signals, and one the tunnel is main signal, and another road is the subsidiary signal of monitoring main signal, and dual like this output has strengthened the reliability of system; It has can select the position signal output function.Its maximum working voltage (MWV) 16V, precision is ± 3% absolute linearity, 90 ° of phase differences, Standard resistance range 4K Ω ± 30%, reliability is high, operating temperature-40～150 ℃, work life can reach 2,000 ten thousand times.
Rotor one 6 peripheries are made of plastics, and have certain contractibility, and internal diameter size is φ 24mm; Circle in output locating dowel pin 61 outstanding these rotors, rectangular shaped, width is 1.96mm; Characteristics and size according to above-mentioned rotor 1 are carried out the design of output shaft 51 mated position; As shown in Figure 5, output shaft 51 is installed rotor one 6 positions and is designed to the straight burr spline, and maximum outside diameter is 24.25mm; 51 output shaft positioning groove 512 is 10.150-10.350mm apart from output shaft line of centers minor increment on the output shaft; Wide is 2.1-2.2mm; Rotor one and torque sensor cooperate part be assembled on the output shaft; Simultaneously, guaranteed the overlapping of line of centers maximum possible of output shaft and torque sensor, made the assembling best results; Torque sensor 2 another part cooperate with rotor 27, and the internal diameter size of rotor 27 is φ 22.5mm, circle in the input locating dowel pin 71 outstanding rotors 27; Input locating dowel pin 71 is made up of two parts; A part is to be trapezoidal shape, and trapezoidal angle is 28 ° and highly is not more than 0.89mm that width is not more than 1.98mm; Characteristics and size according to above-mentioned rotor are carried out the design of input shaft 54 mated position, and it is φ 22.5-φ 22.6mm that input shaft 54 is installed rotor position design size; Aforesaid input shaft positioning groove 542, this groove are trapezoidal shape, and trapezoidal angle is 27.75 °-28.25 °, is 8.15-8.35mm apart from input shaft 54 line of centers minor increments, is 3.9mm at the dovetail groove width that is 9.9-10mm apart from the input shaft distance between center line.Rotor 27 cooperates another part of torque sensor and is assembled on the input shaft 54; Torsion bar 55 gets in the endoporus of output shaft 51; In output shaft 51 relative positions boring and be pressed into output pivot pin 511; 511 designs of output pivot pin are long to be 16.3-16.5, and diameter is φ 3.523-φ 3.531mm, is pressed into power 1500N-5000N; Output pivot pin 511 is fixed together output shaft 51, torque sensor 2, input shaft 54, torsion bar 55, and the C-EPS steering shaft is enough firm afterwards also to have guaranteed assembling.
When design output shaft and this assembly set of input shaft, should there be certain rotational angle between the two, so that in rotation process, torsion bar has the distortion that twists of enough spaces, for the sensor passes signal provides the source.The connection of torsion bar is accomplished by input shaft and the combination of output shaft machinery, and when this assembly set of design, the free amount of spin that should utilize bearing circle to allow is accomplished its function.Press the automobile design principle, the free amount of spin of bearing circle is too small, will make hard steering, difficult control, and accelerated wear test, free amount of spin is excessive, and steering sensitivity will be descended, and influences traffic safety.Therefore State Standard of the People's Republic of China GB 7258-2004 " self-propelled vehicle safe in operation engineering factor " stipulates.The maximum free amount of spin of steering wheel for motor vehicle (bearing circle left-right rotation idle travel) from middle position to the left or to the right corner all must not greater than: 10 °.C-EPS gets 5.5 ° according to my company's development.The rigidity of torsion bar is got 2.8-3.1NM/ ° according to my company's development;
During concrete the use, when rotating steering handwheel, drive castellated shaft and rotate; Because castellated shaft, input shaft, torsion bar are transfused to pivot pin and are riveted together, therefore, this part rotating torque that torsion bar has absorbed; Make its distortion that twists, this make be assemblied on the input shaft two of rotors and then the torsional deflection of torsion bar rotate, and output shaft and the rotor two that is assemblied on the output shaft do not receive any rotating torque; Do not rotate, at this moment to have produced certain phase place (angle) poor for two of torque sensor coaxial rotors, and this phase difference calculates in torque sensor; Convert voltage difference to; This just is converted into voltage signal with driving torque, the linear proportional relationship of phase difference and moment of torsion, avoid because of the non-linear power-assisted that causes of sensor unusual.Because sensor does not have the machinery wearing and tearing in signal acquisition process, can realize non-maintaining in the later stage.
After collecting sensor signal is accomplished, signal conversion voltage is offered controller, controller is then controlled motor according to predefined power model according to this signal, makes rotating torque that motor exports corresponding size and direction to produce power-assisted.
This specific embodiment is the preferred embodiments of the present invention, can not limit the present invention, and concrete each item rights protection scope is defined by the claims.
Claims (9)
1. pipe column type electric servo-steering post that adopts New-type Torque Sensor; Comprise: controller, motor, speed reduction gearing, torque sensor, steering shaft assembly; Said torque sensor is installed in the mechanics of steering shaft, is the torque sensor of a kind of dual output orientation sensing, dual output torque signal; It is characterized in that: the signal of torque sensor come from install on the assembly on the steering shaft two in relative rotation rotor one be installed in respectively on output shaft and the input shaft with two, two rotors of rotor, link by the steering shaft assembly between two rotors.
2. the pipe column type electric servo-steering post of employing New-type Torque Sensor according to claim 1; It is characterized in that: said steering shaft assembly comprises output shaft, output pivot pin, bearing, turbine, input shaft, input pivot pin, torsion bar, castellated shaft; The outer side joint bearing of wherein said output shaft; Turbine press-fits on output shaft; Turbine is connected through speed reduction gearing with the output shaft of aforementioned motor, and said output shaft, input shaft form fixing respectively through rotor one, rotor two and torque sensor, and the input shaft left end portion is nested with in output shaft; Said input shaft, torsion bar, castellated shaft are riveted together.
3. the pipe column type electric servo-steering post of employing New-type Torque Sensor according to claim 2; It is characterized in that: there are certain rotational angle in output shaft and input shaft in the said steering shaft assembly; Be 5.5 °, the rigidity of aforementioned torsion bar is 2.8-3.1NM/ °.
4. the pipe column type electric servo-steering post of employing New-type Torque Sensor according to claim 2, it is characterized in that: the installation process of said steering shaft and associated component is following:
The first step is fitted in bearing, turbine on the output shaft;
In second step, after input shaft, torsion bar, castellated shaft press-fited, in the boring of input shaft relative position and be pressed into the input pivot pin, input shaft, torsion bar, castellated shaft are riveted together;
In the 3rd step, torque sensor one side is assembled on the output shaft after the first step is accomplished;
The 4th step was assembled to the torque sensor opposite side on the input shaft after second step accomplished, and simultaneously, torsion bar gets in the endoporus of output shaft;
In the 5th step, the boring of output shaft relative position also is pressed into the output pivot pin.
5. the pipe column type electric servo-steering post of employing New-type Torque Sensor according to claim 1 is characterized in that: said rotor one is provided with the output locating dowel pin, and said output locating dowel pin cooperates with output shaft to form locatees; The input locating dowel pin is arranged on the rotor two, and said input locating dowel pin cooperates with input shaft to form locatees.
6. the pipe column type electric servo-steering post of employing New-type Torque Sensor according to claim 5; It is characterized in that: said rotor one periphery is made of plastics; Circle is " rectangle " shape in the outstanding rotor one of output locating dowel pin; The output shaft position is corresponding with rotor one, and the position that output shaft is installed in rotor one is the straight burr spline, and maximum outside diameter is 24.25mm; Also be provided with the output shaft positioning groove on the aforementioned output shaft, the output locating dowel pin matches with the output shaft positioning groove rotor one and output shaft is fixed.
7. the pipe column type electric servo-steering post of employing New-type Torque Sensor according to claim 6; It is characterized in that: the internal diameter size of said rotor one is φ 24mm; Output locating dowel pin width is 1.96mm; Said output shaft positioning groove is 10.150-10.350mm apart from output shaft line of centers minor increment, and wide is 2.1-2.2mm.
8. the pipe column type electric servo-steering post of employing New-type Torque Sensor according to claim 5; It is characterized in that: said rotor two peripheries are made of plastics, circle in the outstanding rotor two of input locating dowel pin, and the input locating dowel pin is made up of upper and lower two parts; The lower part is " trapezoidal " shape; Top is " rectangle " and is superimposed upon the lower part end face, and the width of top " rectangle " is less than the trapezoidal end face in lower part, and aforementioned input shaft position is corresponding with rotor two; Also be provided with the input shaft positioning groove on the input shaft, the input locating dowel pin matches with the input shaft positioning groove rotor two and input shaft is fixed.
9. the pipe column type electric servo-steering post of employing New-type Torque Sensor according to claim 7; It is characterized in that: said rotor two internal diameter sizes are φ 22.5-φ 22.6mm; The trapezoidal angle of input locating dowel pin is 28 ° and highly is not more than 0.89mm that width is not more than 1.98mm; The input shaft positioning groove is approximate " trapezoidal " shape, and its width is not more than 3.9mm, and trapezoidal angle is 27.75 °-28.25 °, is 8.15-8.35mm apart from input shaft line of centers minor increment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010597302.3A CN102530051B (en) | 2010-12-21 | 2010-12-21 | Tubular column type electric power steering column employing novel torque sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010597302.3A CN102530051B (en) | 2010-12-21 | 2010-12-21 | Tubular column type electric power steering column employing novel torque sensor |
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| Publication Number | Publication Date |
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| CN102530051A true CN102530051A (en) | 2012-07-04 |
| CN102530051B CN102530051B (en) | 2014-07-16 |
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| CN201010597302.3A Expired - Fee Related CN102530051B (en) | 2010-12-21 | 2010-12-21 | Tubular column type electric power steering column employing novel torque sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109760738A (en) * | 2018-09-10 | 2019-05-17 | 安徽德孚转向系统股份有限公司 | The steering support device of electric boosting steering system |
| CN113404428A (en) * | 2021-07-09 | 2021-09-17 | 上海强劲地基工程股份有限公司 | Stirring stake construction equipment of two-way stirring |
| CN115285209A (en) * | 2022-08-10 | 2022-11-04 | 湖北三环汽车方向机有限公司 | Full-closed-loop corner-controlled recirculating ball electro-hydraulic steering gear |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2645999Y (en) * | 2003-09-09 | 2004-10-06 | 重庆驰骋轻型汽车部件股份有限公司 | Electric power assisted diverter of automobile |
| US20070246290A1 (en) * | 2006-03-31 | 2007-10-25 | Sona Koyo Steering Systems Ltd. | Torque sensor for electric power steering system |
| CN100554064C (en) * | 2006-05-30 | 2009-10-28 | 上海燃料电池汽车动力系统有限公司 | The mounting structure of contactless torque angle sensor on electric boosting steering system |
| WO2010013490A1 (en) * | 2008-08-01 | 2010-02-04 | 株式会社ジェイテクト | Electric power steering device |
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2010
- 2010-12-21 CN CN201010597302.3A patent/CN102530051B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645999Y (en) * | 2003-09-09 | 2004-10-06 | 重庆驰骋轻型汽车部件股份有限公司 | Electric power assisted diverter of automobile |
| US20070246290A1 (en) * | 2006-03-31 | 2007-10-25 | Sona Koyo Steering Systems Ltd. | Torque sensor for electric power steering system |
| CN100554064C (en) * | 2006-05-30 | 2009-10-28 | 上海燃料电池汽车动力系统有限公司 | The mounting structure of contactless torque angle sensor on electric boosting steering system |
| WO2010013490A1 (en) * | 2008-08-01 | 2010-02-04 | 株式会社ジェイテクト | Electric power steering device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109760738A (en) * | 2018-09-10 | 2019-05-17 | 安徽德孚转向系统股份有限公司 | The steering support device of electric boosting steering system |
| CN113404428A (en) * | 2021-07-09 | 2021-09-17 | 上海强劲地基工程股份有限公司 | Stirring stake construction equipment of two-way stirring |
| CN115285209A (en) * | 2022-08-10 | 2022-11-04 | 湖北三环汽车方向机有限公司 | Full-closed-loop corner-controlled recirculating ball electro-hydraulic steering gear |
| CN115285209B (en) * | 2022-08-10 | 2024-02-09 | 湖北三环汽车方向机有限公司 | Full-closed-loop corner controlled recirculating ball electrohydraulic steering device |
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| Publication number | Publication date |
|---|---|
| CN102530051B (en) | 2014-07-16 |
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