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Steering apparatus for vehicle

A technology of steering equipment and vehicles, which is applied to the steering column, steering control installed on the vehicle, steering control, etc., and can solve the problems of stability in the middle of the steering wheel and deterioration of steering feel

Inactive Publication Date: 2012-10-17
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the above-mentioned steering apparatus for a vehicle, in the case where a gap exceeding the design size occurs between the cam follower and the cam groove due to its dimensional error, the intermediate stability and steering feel of the steering wheel during straight travel are deteriorated

Method used

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  • Steering apparatus for vehicle
  • Steering apparatus for vehicle
  • Steering apparatus for vehicle

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Experimental program
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no. 1 approach

[0029] Such as figure 1 As shown, in the steering device 10 according to the first embodiment of the present invention, the translation shaft 12 passes through the tubular housing 11 . Both end portions of the translation shaft 12 are connected to steered wheels 13 via tie rods (not shown).

[0030] A tubular housing 11 is fixed to a vehicle body (not shown), and an alternating current (AC) motor 20 is accommodated in an axially intermediate portion of the housing. The AC motor 20 is a brushless three-phase AC motor and has a cylindrical motor stator 21 and a cylindrical motor rotor 22 having magnets on the outer peripheral surface. A motor stator 21 is bonded and fixed inside the tubular case 11, and a motor rotor 22 is fitted in the motor stator 21 so that there is a space therebetween, and both ends of the motor rotor 22 are rotatably supported on the tubular case through bearings 22B. . The translation shaft 12 is inserted through the inside of the motor rotor 22 .

[...

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PUM

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Abstract

A cam follower (70) includes an oval rotational body (72) which is rotationally supported on a fixed pin (71), and in which an outer circumferential shape thereof is an oval, a long axis of the oval is longer than a width of the cam groove (64), and a short axis of the oval is shorter than the width of the cam groove (64), the oval rotational body (72) being biased and being rotated by a biasing spring (77) in one direction about the fixed pin (71). As a consequence, when a steering wheel (39) is in a neutral position, the outer circumferential surface of the cam follower (70) comes into contact with both side surfaces (64S) of the cam groove (64) in the width direction of the cam groove (64) and gaps therebetween can be eliminated. As a result, neutral stability of the steering wheel andsteering feeling during straightforward traveling are improved.

Description

technical field [0001] The present invention relates to a steering apparatus for a vehicle, which is provided with a first rotating member that receives steering torque from a steering wheel and a second rotating member that receives steering torque from the first rotating member and transmits the steering torque to steered wheels, by which The steering angle of the steering wheel of the steering system changes as the steering wheel moves away from the neutral position. Background technique [0002] Such a steering apparatus for a vehicle is available as described in Japanese Patent Application Publication No. 3-227772 (JP-A-3-227772 ), in which the rotation axis of the first rotating member extends from the In the state where the rotation axes of the two rotation members are shifted, the first rotation member and the second rotation member are arranged one after the other, and are arranged on the second rotation member at a position displaced from the rotation axis of the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D3/02
CPCB62D1/20B62D1/16F16H53/06B62D1/166
Inventor 山川知也田中肇
Owner JTEKT CORP