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Electro-hydraulic power steering system

A technology of hydraulic power steering and power steering, applied in electric steering mechanism, fluid steering mechanism, etc., can solve the problems of system life impact, energy waste, loss of road feeling, etc. sense of effect

Active Publication Date: 2016-12-28
苏州韦贝电机科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power assist characteristics of the traditional hydraulic power steering system are fixed, that is, if the car can provide enough power assist when parking, it will inevitably lead to too much power assist when steering and lose the sense of road.
[0003] The oil pump in the traditional hydraulic power steering system needs to be driven by the engine, and the power steering system must work regardless of whether the vehicle is turning or not when the vehicle is running, resulting in energy waste
[0004] The hydraulic pump is always in working condition, which leads to high oil pressure in the pipelines and components in the whole system, which has a certain impact on the life of the whole system

Method used

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  • Electro-hydraulic power steering system
  • Electro-hydraulic power steering system
  • Electro-hydraulic power steering system

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Embodiment Construction

[0024] In order to make the technical solutions, technical features, achieved goals and effects of the present invention easy to understand and understand, the present invention will be further described below with reference to the specific embodiments.

[0025] according to Figure 1-4 , an electro-hydraulic power steering system, including a hydraulic pump, a motor for controlling the hydraulic pump, a reducer connected to the motor, and characterized in that it also includes a lithium battery for controlling the motor, a battery for supplying power to the lithium battery, and an electronic control system. The electronic control system, the lithium battery, the motor and the hydraulic pump constitute the first control circuit. The electronic control system, the lithium battery and the accumulator constitute a second control circuit. The power steering system also includes a steering gear, an oil tank connected with the hydraulic pump and the steering gear, a one-way valve a...

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Abstract

The invention belongs to the field of steering power-assisted equipment, and particularly relates to an electrically-driven hydraulic power-assisted steering system. The system comprises a hydraulic pump, a motor for controlling the hydraulic pump, and a reducer connected with the motor, and is characterized in that the system further comprises a lithium cell for controlling the motor, a storage battery supplying power for the lithium cell, and an electric control system, wherein the electric control system forms a first control circuit with the lithium cell, the motor and the hydraulic pump. The electrically-driven hydraulic power-assisted steering system can provide corresponding assisted power according to the power-assisted requirement of a vehicle, improve the vehicle steering controllability effectively and save the energy consumption.

Description

technical field [0001] The invention belongs to the field of power steering equipment, and in particular relates to an electro-hydraulic power steering system. Background technique [0002] Power steering technology is a key technology to ensure the safe driving of the car, which can reduce the driving control force and improve the driving performance. The ideal power steering characteristics should take into account the vehicle's light steering at low speeds and good road feel at high speeds. The traditional hydraulic power steering system has a fixed power assist characteristic, that is, if the car can provide sufficient power assist when parking, it will inevitably lead to excessive power assist during steering and loss of road feel. [0003] The oil pump in the traditional hydraulic power steering system needs to be driven by the engine, and the power steering system has to work when the vehicle is running, regardless of whether it is steered, resulting in a waste of en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/06B62D5/04B62D101/00B62D123/00
Inventor 李磊李红志张齐
Owner 苏州韦贝电机科技有限公司
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