CN103269939A - Steering device for vehicle - Google Patents
Steering device for vehicle Download PDFInfo
- Publication number
- CN103269939A CN103269939A CN2011800611673A CN201180061167A CN103269939A CN 103269939 A CN103269939 A CN 103269939A CN 2011800611673 A CN2011800611673 A CN 2011800611673A CN 201180061167 A CN201180061167 A CN 201180061167A CN 103269939 A CN103269939 A CN 103269939A
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- CN
- China
- Prior art keywords
- bearing
- shaft
- centers
- ball
- lower shaft
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/08—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque
- B62D6/10—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque characterised by means for sensing or determining torque
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Steering Controls (AREA)
Abstract
A steering shaft (2) penetrating through a hollow support member (3) includes an upper shaft (14) and a lower shaft (15) which are coaxially connected through a torsion bar (16). A first ball bearing (33) retained by the support member (3) rotatably supports the upper end (141) of the upper shaft. A second ball bearing (34) retained by the support member (3) rotatably supports the lower shaft (15). A first inter-shaft bearing (36; 36A) retained by the lower shaft (15) rotatably supports the lower end (142) of the upper shaft (14). A second inter-shaft bearing (37; 37A) retained by the upper shaft (14) rotatably supports the upper end (151) of the lower shaft (15). The first inter-shaft bearing (36; 36A) includes a portion disposed inward radially of the bearing center (C1) of the second ball bearing (34). The first and second inter-shaft bearings (36, 37; 36A, 37A) are separated from each other in the direction (X1) of the axis of the steering shaft (2).
Description
Technical field
The present invention relates to the vehicle steering apparatus.
Background technology
Usually, in driven steering device, use a plurality of ball-bearing casing supporting steering shafts.For example in patent documentation 1, the tween drive shaft that steering shaft links by upper axis, with the lower end of the mode that can rotate together and upper axis and via torsion bar can counterrotating mode to constitute with the lower shaft of tween drive shaft binding.
Upper end by first ball-bearing casing supporting upper axis.By second ball-bearing casing supporting tween drive shaft.By the 3rd ball-bearing casing and the 4th ball-bearing casing lower shaft is supported on both sides across the worm gear that rotates with this lower shaft.In addition, dispose sleeve at the chimeric telescoping part of tween drive shaft and lower shaft.
Patent documentation 1: TOHKEMY 2003-341528 communique
In patent documentation 1, the quantity of employed ball-bearing casing is four, and is many, so there is the high problem of manufacturing cost.But, under the situation of the quantity that reduces ball-bearing casing, have following worry.Namely, if based on the shock load that produces at the stroke end of rack shaft and the rotary torque bigger to the tween drive shaft effect, then based on the secondary force that produces at the Hooke's coupling that tween drive shaft and lower shaft as the element of steering shaft the are linked torque load bigger to the lower shaft effect occasionally.Therefore, lower shaft has the worry that generation is toppled over.The generation meeting of toppling over exerts an influence to bearing life.In addition, the accuracy of detection of torque sensor also can variation.
Summary of the invention
The present invention finishes in view of above-mentioned problem, the vehicle steering apparatus that purpose is to provide the element that can suppress steering shaft at an easy rate to topple over.
To achieve these goals, the invention of technical scheme 1 provides a kind of vehicle steering apparatus, and this vehicle possesses with steering apparatus: the support unit of hollow; Steering shaft, this steering shaft connects above-mentioned support unit, and comprises via torsion bar in upper axis and the lower shaft of coaxial binding; First ball-bearing casing, this first ball-bearing casing remains in above-mentioned support unit, and with the last end bearing of above-mentioned upper axis for rotating; Second ball-bearing casing, this second ball-bearing casing remains in above-mentioned support unit, and above-mentioned lower shaft is supported to rotating; The first between centers bearing, this first between centers bearing remains in above-mentioned lower shaft, and with the following end bearing of above-mentioned upper axis for rotating; And the second between centers bearing, this second between centers bearing remains in above-mentioned upper axis, and with the last end bearing of above-mentioned lower shaft for rotating, the above-mentioned first between centers bearing comprises the part of the radially inner side of the bearing center that is disposed at above-mentioned second ball-bearing casing, and the above-mentioned first between centers bearing and the above-mentioned second between centers bearing axially separate above-mentioned steering shaft.
In addition, can be as the invention of technical scheme 2, above-mentioned vehicle possesses the stop motion mechnism of the relative rotation amount of restriction above-mentioned upper axis and above-mentioned lower shaft with steering apparatus, and above-mentioned stop motion mechnism is disposed between the above-mentioned first between centers bearing and the above-mentioned second between centers bearing vertically.
In addition, can be as the invention of technical scheme 3, at least one side in the above-mentioned first between centers bearing and the above-mentioned second between centers bearing comprises sleeve.
In addition, can be as the invention of technical scheme 4, at least one side in the above-mentioned first between centers bearing and the above-mentioned second between centers bearing comprises needle bearing.
According to the invention of technical scheme 1, by the upper end of first ball-bearing casing supporting upper axis.Owing to will support the position of radially inner side that the part of the first between centers bearing of the lower end of upper axis is disposed at second ball-bearing casing of supporting lower shaft, so in fact can be supported the lower end of upper axis by second ball-bearing casing.
In addition, because at the position configuration second between centers bearing that separates from the first between centers bearing vertically, so have following advantage.Namely, the bearing center that produces based on couple with second ball-bearing casing is the torque load that fulcrum tilts lower shaft, at this moment, can via the second between centers bearing, suppress lower shaft and topple over by the upper axis that suppresses as described above to topple over.Therefore, can pass through the structure of the cheapness of the less ball-bearing casing of usage quantity, suppress stably to support diaxon under the state of toppling over.
In order further to reduce manufacturing cost, preferred at least one side's between centers bearing uses plain bearing that is sleeve.Yet in order to reduce the rotational resistance of two between centers, at least one side's between centers bearing can use needle bearing.
According to the invention of technical scheme 2, has following advantage.Namely, topple in order to suppress lower shaft, preferably enlarge the interval between the first between centers bearing and the second between centers bearing.The retainer of the relative rotation amount of restriction diaxon on the other hand, usually, detects the method for handling maneuver moment of torsion owing to adopting based on upper axis and the relative rotation of lower shaft, so need be set.In the present invention, owing to the clearance spaces that above-mentioned retainer is disposed between the first and second between centers bearing, thus can save unnecessary space, and can reduce toppling over of lower shaft as much as possible.
In addition, as technical scheme 3, at least one side in the first between centers bearing and the second between centers bearing comprises can reduce manufacturing cost under the situation of sleeve.
In addition, as technical scheme 4, at least one side in the first between centers bearing and the second between centers bearing comprises can suppress the rotational resistance of two between centers under the situation of needle bearing.
Description of drawings
Fig. 1 is the schematic sectional view that the vehicle of one embodiment of the present invention is used steering apparatus.
Fig. 2 is the concise and to the point cutaway view of stop motion mechnism.
Fig. 3 is the schematic sectional view that the vehicle of another embodiment of the present invention is used steering apparatus.
The specific embodiment
Preferred embodiment describe of the present invention with reference to accompanying drawing.
Fig. 1 is the concise and to the point cutaway view of using the driven steering device 100 of steering apparatus as the vehicle of one embodiment of the present invention.With reference to Fig. 1, driven steering device 100 possesses steering shaft 2, and this steering shaft 2 is used for transmitting the rotation as the bearing circle 1 of handling maneuver parts.Steering shaft 2 possesses: shaft (column shaft) 4, and its Steering gear 3 as support unit that is fixed in automobile body B supports to rotating; Tween drive shaft 6, it links via Hooke's coupling 5 and shaft 4; And pinion shaft 8, it links via Hooke's coupling 7 and tween drive shaft 6.
In addition, driven steering device 100 possesses the steering hardware A that is made of pinion and rack, and this pinion and rack possesses: above-mentioned pinion shaft 8; And rack bar 9, it has the tooth bar 9a with the miniature gears 8a engagement that is arranged at pinion shaft 8.
Rack bar 9 is supported to moving vertically by housing 10.Link with wheel flutter 13 via the pull bar 11 of correspondence and track arm 12 respectively from the two ends of the outstanding rack bar 9 of housing 10.
Bearing circle 1 as the handling maneuver parts is installed in the upper end 141 of upper axis 14.The lower end of lower shaft 15 links with steering hardware A via Hooke's coupling 5, tween drive shaft 6 and Hooke's coupling 7.
Contain speed reduction gearing 23 in housing 20, the output rotation of the electro-motor 22 of 23 pairs of generations of this speed reduction gearing handling maneuver auxiliary force is slowed down.Speed reduction gearing 23 for example is made of worm and gear (worm gear) mechanism, possess by electro-motor 22 drive as the worm shaft 24 of driven wheel and with the worm gear 25 as ring gear of worm shaft 24 engagements.
Second cylindrical portion 27 that housing 20 has first cylindrical portion 26 and arranges with first cylindrical portion 26 cross-shapedly, and integrally formed by for example aluminum alloy.Contain worm shaft 24 in first cylindrical portion 26.Contain worm gear 25 and the torque sensor 28 of speed reduction gearing 23 in second cylindrical portion 27 of housing 20.The upper end 27a of second cylindrical portion 27 is embedded in sheath 19.The end cap 21 of annular is combined with the lower end 27b of second cylindrical portion 27.
In addition, divide control cabin 30 by outside portion and the controller housing 29 of housing 20.(Electronic Control Unit: electronic control unit), this ECU32 comprises control substrate 31, power substrate (not shown) of the action of controlling electro-motor 22 etc. to contain ECU32 in control cabin 30.
Present embodiment is characterised in that the structure of the shaft 4 of supporting steering shaft 2.Particularly, the upper end 141 of the upper axis 14 of shaft 4 is supported to rotating by first ball-bearing casing 33 that the sheath 19 at Steering gear 3 keeps.First ball-bearing casing 33 has: outer ring 33a, its chimeric interior all 19a that are fixed in sheath 19; Inner ring 33b, it is embedded in the periphery 14a of upper axis 14 in the mode that can rotate together; And a plurality of ball 33c, it is held between outer ring 33a and the inner ring 33b.
In addition, second ball-bearing casing, 34 supportings that kept by the little tube 21c of portion at the end cap 21 of the housing 20 of Steering gear 3 of the lower shaft 15 of shaft 4 are for rotating.Second ball-bearing casing 34 has: outer ring 34a, its chimeric interior week of being fixed in the little tube 21c of portion; Inner ring 34b, it is embedded in the periphery 15a of lower shaft 15 in the mode that can rotate together; And a plurality of ball 34c, it is held between outer ring 34a and the inner ring 34b.
At the chimeric chimeric tube 51 that installing component 50 is fixedly arranged of the interior week of the little tube 21c of portion of end cap 21.The outer ring 34a of second ball-bearing casing 34 is held between annular lip 52 and the annular lip 21d, and wherein, above-mentioned annular lip 52 is arranged at an end of the chimeric tube 51 of installing component 50, and above-mentioned annular lip 21d is arranged at the end of the little tube 21c of portion of end cap 21.Thus, restriction outer ring 34a moves along the axial X1 of steering shaft 2.
In addition, the inner ring 34b of second ball-bearing casing 34 is held between end difference 15b and the nut 35, and wherein, above-mentioned end difference 15b is arranged at the periphery 15a of lower shaft 15, and above-mentioned nut 35 screws with the threaded portion that is arranged at the periphery 15a of lower shaft 15.Thus, restriction inner ring 34b and lower shaft 15 vertically X1 relatively move.
On the other hand, the bottom of upper axis 14 is inserted in the lower shaft 15, and via as first sleeve 36 of the first between centers bearing and as second sleeve 37 of the second between centers bearing and be supported to and can rotate.Each sleeve 36,37 is plain bearing, for example, each sleeve can be lubricant is contained be dipped into pore and porosity sintered alloy sleeve, also can be the synthetic resin sleeve.Be under the situation of synthetic resin sleeve at sleeve, can use the fluorocarbon resin with self lubricity.In addition, can cover solid lubricant (for example molybdenum disulphide) at the sliding surface of synthetic resin sleeve.
First sleeve 36 and second sleeve 37 are configured to separate predetermined distance at axial X1.The clutch shaft bearing maintaining parts 38 that the chimeric interior all 15c that remain in lower shaft 15 of first sleeve 36 arrange, and with lower end 142 supportings of upper axis 14 for rotating.
First sleeve 36 comprises the part of the radially inner side of the bearing center C1 that is disposed at second ball-bearing casing 34.On the other hand, the chimeric second bearing maintaining parts 39 that arrange in interior week that remain in the upper end 151 of lower shaft 15 of second sleeve 37, and with upper axis 14 supportings for rotating.
First sleeve 36 and second sleeve 37 separate at axial X1, dispose stop motion mechnism 40 between first sleeve 36 and second sleeve 37, and this stop motion mechnism 40 is used for the relative rotation amount of restriction upper axis 14 and lower shaft 15.
As shown in Figure 2, stop motion mechnism 40 is made of recess 41 and protuberance 42, wherein, above-mentioned recess 41 is arranged at interior all 15c of lower shaft 15, and raised part 42 is arranged at the periphery 14a of upper axis 14 and is configured in the above-mentioned recess 41 in the mode that has the gap at hand of rotation.
According to present embodiment, by the upper end 141 of first ball-bearing casing, 33 supporting upper axis 14.On the other hand, owing to will support the position that the part of the first between centers bearing (first sleeve 36) of the lower end 142 of upper axis 14 is disposed at the radially inner side of second ball-bearing casing 34 that supports lower shaft 15, so in fact can be by the lower end 142 of second ball-bearing casing, 34 supporting upper axis 14.
In addition, because at the position configuration second between centers bearing (second sleeve 37) from the first between centers bearing (first sleeve 36) X1 separation vertically, so have following advantage.Namely, because the influence of the secondary couple that produces based on the rotary torque of tween drive shaft 6 and at Hooke's coupling 5, and the bearing center C1 that produces with second ball-bearing casing 34 is the torque load that fulcrum tilts lower shaft 15, at this moment, can be by the upper axis 14 that suppresses as described above to topple over, via the second between centers bearing (second sleeve 37), suppress lower shaft 15 and topple over.
As the ball-bearing casing of supporting shaft 4, for first ball-bearing casing 33 of supporting upper axis 14, with 34 two ball-bearing casings of second ball-bearing casing of supporting lower shaft, so can realize cheapization, and can under the state that suppresses to topple over, stably support diaxon 14,15.In addition, can prevent the worried baneful influences such as accuracy of detection deterioration that produce torque sensor 28 because diaxon 14,15 is toppled in advance.
In addition, as the between centers bearing that is held between upper axis 14 and the lower shaft 15, use first sleeve 36 and second sleeve 37, so can further reduce manufacturing cost.
Topple in order to suppress lower shaft 15, preferably enlarge the interval between the bearing between diaxon (first sleeve 36 and second sleeve 37).The stop motion mechnism 40 that limits diaxon 14,15 relative rotation amount on the other hand, usually, in driven steering device 100, detects the method for handling maneuver moment of torsion owing to adopt based on upper axis 14 and the relative rotation of lower shaft 15, so need be set.
In the present embodiment, owing to the empty She space that this stop motion mechnism 40 is disposed between the bearing between diaxon (first sleeve 36 and second sleeve 37), thus can save unnecessary space, and can reduce toppling over of lower shaft 15 as much as possible.
The present invention is not limited to above-mentioned embodiment, for example as the between centers bearing, can replace first sleeve 36 and second sleeve 37 of Fig. 1, and use needle bearing 36A, 37A as shown in Figure 3.In this case, can reduce rotational resistance between upper axis 14 and the lower shaft 15.In addition, also can only replace the either party in first sleeve 36 and second sleeve 37 and use needle bearing.
In addition, though carrying out the auxiliary so-called post auxiliary type driven steering device of handling maneuver to the lower shaft 15 of the power of electro-motor 22 being given the shaft 4 of the steering shaft 2 that is supported on Steering gear 3, above-mentioned embodiment is illustrated, but be not limited thereto, the present invention can be applicable to that also the pinion shaft 8 of giving steering shaft 2 with the power of electro-motor 22 carries out the auxiliary so-called miniature gears auxiliary type driven steering device of handling maneuver.
More than, by concrete mode the present invention at length is illustrated, but the those skilled in the art that understood foregoing can easily consider its change, change and equivalent.Therefore, the present invention should comprise the scope of claim and the scope that is equal to it.
Description of reference numerals:
1... bearing circle; 2... steering shaft; 3... Steering gear (support unit); 4... shaft; 6... tween drive shaft; 8... pinion shaft; 9... rack bar; A... steering hardware; 14... upper axis; 141... upper end; 142... lower end; 14a... periphery; 15... lower shaft; 151... upper end; 15a... periphery; 15b... end difference; 15c... interior week; 16... torsion bar; 19... sheath; 20... housing; 21... end cap; 22... electro-motor; 23... speed reduction gearing; 24... worm shaft (driven wheel); 25... worm gear (ring gear); 33... first ball-bearing casing; 34... second ball-bearing casing; 36... first sleeve (the first between centers bearing); 36A... first needle bearing (the first between centers bearing); 37... second sleeve (the second between centers bearing); 37A... second needle bearing (the second between centers bearing); 40... stop motion mechnism; 41... recess; 42... protuberance; 100... driven steering device (vehicle steering apparatus); B... vehicle body; C1... bearing center; X1... axial.
Claims (according to the modification of the 19th of treaty)
1. vehicle steering apparatus is characterized in that possessing:
The support unit of hollow;
Steering shaft, this steering shaft connects described support unit, and comprises via torsion bar in the upper axis of coaxial binding and the lower shaft of tubular;
First ball-bearing casing, this first ball-bearing casing remains in described support unit, and with the last end bearing of described upper axis for rotating;
Second ball-bearing casing, this second ball-bearing casing remains in described support unit, and described lower shaft is supported to rotating;
The first between centers bearing, this first between centers bearing is made of the chimeric sleeve that remains in the interior week of described lower shaft and be embedded in the periphery of described upper axis, and with the following end bearing of described upper axis for rotating; And
The second between centers bearing, this second between centers bearing is by being configured to that axial top from from the described first between centers bearing to described steering shaft is separated and the chimeric sleeve that remains in the interior week of described lower shaft and be embedded in the periphery of described upper axis constitutes, and with the supporting of described upper axis for rotating
The described first between centers bearing comprises the part of the radially inner side of the bearing center that is disposed at described second ball-bearing casing.
2. vehicle steering apparatus according to claim 1 is characterized in that,
Described vehicle possesses the stop motion mechnism of the relative rotation amount of restriction described upper axis and described lower shaft with steering apparatus,
Described stop motion mechnism is disposed between the described first between centers bearing and the described second between centers bearing vertically.
3. vehicle steering apparatus according to claim 1 and 2 is characterized in that,
The sleeve that constitutes the described first between centers bearing and the described second between centers bearing respectively is synthetic resin system.
Claims (4)
1. vehicle steering apparatus is characterized in that possessing:
The support unit of hollow;
Steering shaft, this steering shaft connects described support unit, and comprises via torsion bar in upper axis and the lower shaft of coaxial binding;
First ball-bearing casing, this first ball-bearing casing remains in described support unit, and with the last end bearing of described upper axis for rotating;
Second ball-bearing casing, this second ball-bearing casing remains in described support unit, and described lower shaft is supported to rotating;
The first between centers bearing, this first between centers bearing remains in described lower shaft, and with the following end bearing of described upper axis for rotating; And
The second between centers bearing, this second between centers bearing remains in described upper axis, and with the last end bearing of described lower shaft for rotating,
The described first between centers bearing comprises the part of the radially inner side of the bearing center that is disposed at described second ball-bearing casing,
The described first between centers bearing and the described second between centers bearing axially separate described steering shaft.
2. vehicle steering apparatus according to claim 1 is characterized in that,
Described vehicle possesses the stop motion mechnism of the relative rotation amount of restriction described upper axis and described lower shaft with steering apparatus,
Described stop motion mechnism is disposed between the described first between centers bearing and the described second between centers bearing vertically.
3. vehicle steering apparatus according to claim 1 and 2 is characterized in that,
At least one side in the described first between centers bearing and the described second between centers bearing comprises sleeve.
4. vehicle steering apparatus according to claim 1 and 2 is characterized in that,
At least one side in the described first between centers bearing and the described second between centers bearing comprises needle bearing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-286353 | 2010-12-22 | ||
| JP2010286353A JP2012131420A (en) | 2010-12-22 | 2010-12-22 | Steering device for vehicle |
| PCT/JP2011/076189 WO2012086338A1 (en) | 2010-12-22 | 2011-11-14 | Steering device for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103269939A true CN103269939A (en) | 2013-08-28 |
| CN103269939B CN103269939B (en) | 2015-12-02 |
Family
ID=46313620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180061167.3A Expired - Fee Related CN103269939B (en) | 2010-12-22 | 2011-11-14 | Vehicle steering apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2012131420A (en) |
| CN (1) | CN103269939B (en) |
| WO (1) | WO2012086338A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914760A (en) * | 2016-10-10 | 2018-04-17 | 株式会社万都 | Electrically powered steering apparatus using same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3013301B1 (en) * | 2013-11-21 | 2017-02-17 | Peugeot Citroen Automobiles Sa | ELECTRIC SWITCH PLATE AND STEERING COLUMN OF A VEHICLE |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002603A (en) * | 1998-06-17 | 2000-01-07 | Koyo Seiko Co Ltd | Torque sensor |
| JP2002104213A (en) * | 2000-09-29 | 2002-04-10 | Koyo Seiko Co Ltd | Power steering device |
| JP2003048549A (en) * | 2001-08-08 | 2003-02-18 | Koyo Seiko Co Ltd | Electric power steering device |
| JP2003182603A (en) * | 2001-12-13 | 2003-07-03 | Toyoda Mach Works Ltd | Midpoint setting method for torque sensor |
| CN1665651A (en) * | 2002-07-03 | 2005-09-07 | 日本精工株式会社 | Motor power steering system |
| CN1766359A (en) * | 2004-10-25 | 2006-05-03 | 日本精工株式会社 | Steering device |
-
2010
- 2010-12-22 JP JP2010286353A patent/JP2012131420A/en active Pending
-
2011
- 2011-11-14 WO PCT/JP2011/076189 patent/WO2012086338A1/en active Application Filing
- 2011-11-14 CN CN201180061167.3A patent/CN103269939B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002603A (en) * | 1998-06-17 | 2000-01-07 | Koyo Seiko Co Ltd | Torque sensor |
| JP2002104213A (en) * | 2000-09-29 | 2002-04-10 | Koyo Seiko Co Ltd | Power steering device |
| JP2003048549A (en) * | 2001-08-08 | 2003-02-18 | Koyo Seiko Co Ltd | Electric power steering device |
| JP2003182603A (en) * | 2001-12-13 | 2003-07-03 | Toyoda Mach Works Ltd | Midpoint setting method for torque sensor |
| CN1665651A (en) * | 2002-07-03 | 2005-09-07 | 日本精工株式会社 | Motor power steering system |
| CN1766359A (en) * | 2004-10-25 | 2006-05-03 | 日本精工株式会社 | Steering device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914760A (en) * | 2016-10-10 | 2018-04-17 | 株式会社万都 | Electrically powered steering apparatus using same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012086338A1 (en) | 2012-06-28 |
| JP2012131420A (en) | 2012-07-12 |
| CN103269939B (en) | 2015-12-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20191114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |