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Gear rack for electric power assist steering system, electric power assist steering system and vehicle

An electric power steering and rack technology, applied in the field of vehicles, can solve the problems of weak steering wheel return function, poor position sense, affecting the driver's operating feel, etc., to achieve good coordination performance, improved position sense, and small return torque. Effect

Inactive Publication Date: 2017-02-22
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The rack-type electric power steering system has a screw section on the rack, and the power assist motor realizes the power transmission through the ball screw mechanism. In related technologies, the position sense of the middle position of the electric power steering system is poor, and the return function of the steering wheel is biased. Weak, affecting the driver's operating feel, there is room for improvement

Method used

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  • Gear rack for electric power assist steering system, electric power assist steering system and vehicle
  • Gear rack for electric power assist steering system, electric power assist steering system and vehicle
  • Gear rack for electric power assist steering system, electric power assist steering system and vehicle

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the describe...

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Abstract

The invention discloses a gear rack for electric power assist steering system, electric power assist steering system and vehicle, the gear rack for electric power assist steering system includes a screw rod section, which is suitably meshed with a screw nut assistant, and the screw rod section includes a middle section, two transition sections, the two transition sections are respectively connected with the two ends of the middle section, and from close to one end of the middle section to the other end, the pitch diameter gradually decreases in size. The coordination function of the gear rack for electric power assist steering system, keeps the screw rod section and the screw nut assistant good in coordination, which helpfully advances the location sense of the center position during the steering operations, and maintains small self aligning moment of force.

Description

technical field [0001] The invention belongs to the technical field of vehicle manufacturing, and in particular relates to a rack for an electric power steering system, an electric power steering system with the rack, and a vehicle with the electric power steering system. Background technique [0002] The rack-type electric power steering system has a screw section on the rack, and the power assist motor realizes the power transmission through the ball screw mechanism. In related technologies, the position sense of the middle position of the electric power steering system is poor, and the return function of the steering wheel is biased. Weak, affecting the driver's operating feel, there is room for improvement. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a rack for an electric power steering system with a goo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D3/06B62D5/04
CPCB62D3/06B62D5/0445
Inventor 王睿张子金徐杨孟凡坡
Owner BEIQI FOTON MOTOR CO LTD
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