Automotive Electric Power Steering System

A technology of electric power steering and automobiles, applied in the direction of electric steering mechanism, etc., can solve the problems of reduced service life of EPS assembly, low driver comfort performance, complex sensor structure, etc., achieve fast response speed, eliminate assembly hidden dangers, integrate The effect of simple structure

Inactive Publication Date: 2016-09-28
四川绵阳德鑫机械有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The sensor used in the existing supporting EPS is a contact composite sensor. The contact sensor causes a lot of noise in the EPS; the sensor in the existing structure has low precision and large deviations in the collected signals, resulting in slow response of the EPS and poor handling of the driver. The comfort performance is low; the sensor structure of the existing structure is complex and the volume is large, and there are many restrictions on the layout of the EPS body; the sensor of the existing structure is mainly contact type, and pitting wear occurs during the use of EPS. Reduce the service life of the EPS assembly and make subsequent maintenance difficult

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automotive Electric Power Steering System
  • Automotive Electric Power Steering System
  • Automotive Electric Power Steering System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] "Left", "right" and "inner" and "outer" orientation words involved in the present invention are all associated with the appended Figures 1 to 5 in the same direction.

[0028] Such as Figures 1 to 6 As shown, the automobile electric power steering system of the present invention includes a worm gear box 1, a power assist motor 2, a steering column 3, a steering shaft 4, an intermediate shaft 5 and a nose yoke 6.

[0029] The worm gear box 1 includes a box shell 11 , an input shaft 11 , an output shaft 12 , a non-contact torque sensor 13 , a non-contact angle sensor 14 , a signal conditioning board 15 , a torsion bar 16 , a worm wheel 17 and a worm 18 .

[0030]Wherein, the casing 10 is composed of a left casing 101 and a right casing 102 assembled and connected; the input shaft 11 penetrates the casing 10 from the right casing 102 side; the output shaft 12 penetrates the casing 101 from the left casing 101 side. In the box shell 10, one end of the output shaft 12 pe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an automobile electric power steering system, which includes a worm gear box, a booster motor, a steering column, a steering shaft, an intermediate shaft, and a yoke; the worm gear box includes a box shell, an input shaft, an output shaft, and a Non-contact torque sensor, non-contact angle sensor, signal conditioning board, torsion bar, worm gear and worm screw inside the shell; non-contact torque sensor includes multi-stage magnet ring, yoke assembly and magnet ring assembly; non-contact The type rotation angle sensor includes a main gear and at least one pair of slave gears that are matched and meshed with the main gear; one end of the pair of slave gears is equipped with a horizontally magnetized permanent magnet; the signal conditioning board includes a conditioning board body and a ECU module, GMR sensor chip and Hall chip on the body and electrically connected to each other. The invention has simple and reasonable structural design, can effectively reduce noise, improve operating comfort, fast response speed, compact structure, long service life and easy maintenance.

Description

technical field [0001] The invention relates to the technical field of vehicle steering systems, in particular to an automobile electric power steering system. Background technique [0002] Electric Power Steering System (EPS) is a steering system that directly relies on the motor to provide assist torque. This system is different from the traditional hydraulic power steering system. It does not require complex mechanical and hydraulic control, but controls the magnitude and direction of the current of the assist motor according to the speed of the vehicle collected by the microprocessor and the magnitude of the driver's operating torque. Realize the purpose of assisting the steering wheel of the car. This method can provide sufficient freedom for the setting of steering characteristics, and can accurately realize the steering assistance required by people for different speeds and different turns preset by people, so that the driver can obtain a stronger sense of the road a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/04
Inventor 吴军
Owner 四川绵阳德鑫机械有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products