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A Push Rod Type Compound Steering System and Its Mode Switching Control Method

A mode switching and steering system technology, which is applied in the field of pushrod compound steering system and its mode switching control, can solve the problems of small maximum assist torque, poor handling stability, poor steering road feeling, etc., and achieve the effect of reducing the burden of steering

Active Publication Date: 2017-11-24
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a push rod type compound steering system and its mode switching control method to solve the problems of the hydraulic power steering system and the electronically controlled hydraulic power steering system in the prior art in high-speed work. Poor steering feel, poor handling stability and other problems under certain conditions, and the problem that the maximum assist torque output by the electric power steering system is small

Method used

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  • A Push Rod Type Compound Steering System and Its Mode Switching Control Method
  • A Push Rod Type Compound Steering System and Its Mode Switching Control Method
  • A Push Rod Type Compound Steering System and Its Mode Switching Control Method

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Embodiment Construction

[0016] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0017] refer to figure 1 , figure 2 As shown, a pushrod compound steering system of the present invention includes: steering wheel 1, steering shaft 2, torque sensor 3, electronic control unit 4, recirculating ball steering gear 5, steering rocker arm 6, electric power steering module, steering knuckle arm 10, electronically controlled hydraulic power steering module, steering trapezoid 11, and wheels 20, the steering wheel 1 is connected to the torque input end of the steering shaft 2, and the torque sensor 3 is placed at the torque output end of the steering shaft 2 and Between the input ends of the recirculating ball steering gear 5 and connected with the electronic control unit 4, the ...

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Abstract

The invention discloses a push rod type composite steering system and its mode switching control method. The system includes an electric power steering system and an electronically controlled hydraulic power steering system, adopts two power boosting motors A and B, and proposes a corresponding power boosting mode switching According to the control method, the compound steering system can switch between the electric power steering mode, the electronically controlled hydraulic power steering mode and the hybrid power steering mode according to different working conditions to realize steering assistance.

Description

technical field [0001] The invention belongs to the technical field of power steering systems, and in particular refers to a pushrod type compound steering system capable of switching working modes according to different working conditions and ensuring a good road feel of power steering and a mode switching control method thereof. Background technique [0002] At present, the power steering systems commonly used in existing automobiles include: hydraulic power steering systems, electronically controlled hydraulic power steering systems and electric power steering systems. Among them, the hydraulic power steering system and the electronically controlled hydraulic power steering system can provide greater power assistance under low-speed vehicle conditions and reduce the burden on the driver when steering; however, there are problems with steering feel and handling stability under high-speed conditions. The electric power steering system is composed of a controller, a booster ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/04B62D5/06B62D6/00B62D101/00B62D113/00B62D119/00B62D137/00
Inventor 栾众楷赵万忠陈亮宇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS