Stiction compensation method and device

A compensation method and viscous technology, applied in the direction of electric steering mechanism, etc., can solve the problems of high precision requirements and difficult realization of turbine and worm gear processing and assembly, and achieve the goal of improving steering feel, driving safety, and reducing fluctuation amplitude. Effect

Inactive Publication Date: 2018-06-29
BAIC MOTOR CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the matching quality of the worm gear requires high processing and assembly precision, and it is difficult to realize

Method used

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  • Stiction compensation method and device
  • Stiction compensation method and device

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Embodiment Construction

[0068] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0069] The viscosity compensation method and device provided by the embodiments of the present invention are suitable for electric power steering systems. Such as figure 1 As shown, the EPS system mainly includes a torque sensor 1, a vehicle speed sensor (not shown in the figure), a controller 2, a booster motor 3, a clutch 4, a reduction mechani...

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Abstract

The invention provides a stiction compensation method and device. The method and device are used for an electric power steering system, and the method comprises the steps that a torque of a steering wheel is acquired from a torque sensor; a stiction compensation current of the electric power steering system is determined according to the torque of the steering wheel; and the rotation of a power motor is controlled according to the stiction compensation current, so that the electric power steering system performs stiction compensation, thereby achieving stiction compensation and reducing fluctuation amplitude values during a steering process, improving steering feel and improving driving safety.

Description

technical field [0001] The invention relates to vehicle control technology, in particular to a method and device for viscous compensation. Background technique [0002] The Electric Power Steering (EPS for short) system of a car is formed by adding a motor drive unit on the basis of the mechanical steering system. Its main purpose is to provide power assistance, improve the steering performance of the car, and assist the driver to complete the steering operation. The current EPS system has functions such as basic power assist, friction compensation, centering compensation, inertia compensation, and damping compensation. [0003] In the process of steering, when the electric power steering system changes from static to moving, force changes will occur due to the viscosity between the parts. When the change of force is too large, the driver will perceive it, which will affect the driving safety, so the viscosity compensation is required during the steering process. Viscous c...

Claims

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Application Information

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IPC IPC(8): B62D5/04
Inventor 梁阿南
Owner BAIC MOTOR CORP LTD
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