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Electric power steering apparatus

An electric steering and steering wheel technology, applied in electric steering mechanisms, transmissions, power steering mechanisms, etc., can solve problems such as increased vehicle costs

Inactive Publication Date: 2005-09-28
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Configuring these circuits will result in increased vehicle cost

Method used

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  • Electric power steering apparatus
  • Electric power steering apparatus
  • Electric power steering apparatus

Examples

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Embodiment Construction

[0044] refer to Figures 1 to 6 , shows an electric power steering device 10 according to a first embodiment of the present invention. The device 10 includes a steering system 20 and an auxiliary torque mechanism 30 for providing auxiliary torque to the steering system 20 .

[0045] Such as figure 1As shown, the steering system 20 includes a steering wheel 21, a steering shaft 22 mounted on the steering wheel 21 at one end, a universal joint 23 connected to the other end of the steering shaft 22 at one end, one of A pinion shaft 24 whose end is connected to the other end of the universal joint 23 and a rack shaft 26 a connected to the other end of the pinion shaft 24 via a rack and pinion mechanism 25 . The right end of the rack shaft 26 a is connected to one end of the right tie rod 27 . The left end of the rack shaft 26 a is connected to one end of the left tie rod 27 . The right tie rod 27 is connected with the right wheel 29 through the steering knuckle 28 . The left ...

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PUM

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Abstract

An electric power steering apparatus (10) includes a steering wheel (21), a steering shaft (22), a rack-and-pinion mechanism (25), and a rack shaft (26) connected to the steering wheel through the steering shaft and the rack-and-pinion mechanism. The rack shaft is connected to vehicle wheels (29, 29). The electric power steering apparatus further includes a first electric motor (41) for producing a motive power to be applied to the steering shaft, and a second electric motor (51) for producing a motive power to be applied to the rack shaft.

Description

technical field [0001] The present invention relates to improvements to electric steering devices. Background technique [0002] In recent years, electric power steering devices have been adopted in many vehicles to reduce the steering force used by the driver to turn the steering wheel so that the driver can steer the vehicle comfortably. These devices are commonly used in larger vehicles. For large vehicles including such electric power steering devices, the electric motors of these devices are inevitably upsized in order to generate a larger assist torque. However, these motors should be sized to fit within the tight spaces of the vehicle. These vehicles must include large-capacity circuits in order to drive electric motors. Configuring these circuits will result in increased vehicle cost. [0003] In order to solve the above-mentioned problems, an electric power steering apparatus including two small electric motors instead of one large electric motor has been develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D3/08B62D5/04
CPCB62D5/04B62D5/0421B62D5/0412B62D5/0454F16H19/04F16H55/22
Inventor 古海洋鹤宫修市村博稻叶和彦宫下胜行柳沼隆宏菅野智明北泽浩一森下文宽
Owner HONDA MOTOR CO LTD