Electric power steering gear

A technology of electric power steering and steering gear, which is applied in the direction of electric steering mechanism, automatic steering control components, steering mechanism, etc., to achieve the effects of eliminating oil leakage, improving economy, and simple peripheral structure

Inactive Publication Date: 2010-07-21
上海褓桉贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the fuel consumption of the existing automobile hydraulic power steering system, save energy and reduce emissions, the invention provides an automobile electric power steering

Method used

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Embodiment Construction

[0021] The technical solution adopted by the present invention to solve its technical problems includes a torque sensor directly driven by the steering wheel, and the pinion at its bottom drives the rack 8; The vehicle speed signal is continuously input to the microcomputer control unit installed under the battery; the steering motor 10 is installed on the inner wall of the middle column tube 7 of the steering gear; The circulating ball type reduction gear matched with the inner shell of the motor rotor; the outer shell of the rack shaft and the left and right tie rods (1, 2, 5, 6).

[0022] The electric power steering also has a rotation angle sensor, which is an electromagnetic induction sensor and can output the steering angle signal of the steering motor to the control unit.

[0023] The steering torque sensor includes two parts, which are respectively installed on the input shaft of the steering wheel and the output shaft of the steering pinion;

[0024] The steering mot...

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PUM

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Abstract

The invention relates to a part of an automobile, in particular to an electric power steering gear (P-EPS) structure for an automobile. In order to solve the technical problems of fuel oil consumption of the traditional hydraulic power steering system of the automobile, save energy sources and reduce emission, the invention adopts the technical scheme comprising a steering torque sensor directly driven by a steering wheel, a steering motor, and a shell and left and right tie rod of a rack shaft, wherein a pinion at the lower part of the steering torque sensor drives a rack; the steering torque sensor detects moment and position signals on a steering shaft, and the moment and position signals are continually input to a microcomputer control unit together with vehicle speed signals measured by a vehicle speed sensor; the steering motor is arranged on the inner wall of the middle part of a middle column tube of the steering gear; the inner wall of the middle column tube of the steering gear is provided with a speed reducer; and the speed reducer adopts recirculating ball type speed reducing gear assorted with the inner shell of a motor rotor. The electric power steering gear of the automobile provides required auxiliary power to achieve stable manipulation, light steering and safe running.

Description

technical field [0001] The invention relates to spare parts of automobiles, in particular to the structure of electric power steering (P-EPS) for automobiles. Background technique [0002] Traditional automobile steering gears include rack and pinion drives, worm roller drives, and recirculating ball steering gears. As the power steering system, there are hydraulic steering pump transmission and electric power steering steering gear. The first three are mechanical transmissions, and the last two are auxiliary power steering. Due to the small design range of the transmission ratio of the traditional automobile steering gear, when used in automobiles, a hydraulic steering pump or an electric motor and a turbo reducer are required as a booster system. However, it directly or indirectly increases the load on the engine and increases fuel consumption. . In addition to the above-mentioned shortcomings, the traditional mechanical transmission automobile steering gear also has co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D6/00B62D137/00B62D101/00B62D119/00
Inventor 汤新建
Owner 上海褓桉贸易有限公司
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