Electrically-driven hydraulic power-assisted steering system

A hydraulic power steering and power steering technology, which is applied to electric steering mechanisms, fluid steering mechanisms, etc., can solve the problems of system life impact, energy waste, loss of road sense, etc., to prolong service life, increase pump oil volume, and improve road quality. Sensitive effect

A hydraulic power steering and power steering technology, which is applied to electric steering mechanisms, fluid steering mechanisms, etc., can solve the problems of system life impact, energy waste, loss of road sense, etc., to prolong service life, increase pump oil volume, and improve road quality. Sensitive effect

CN103223974AActive Publication Date: 2013-07-31SUZHOU LVKON NEW ENERGY TECH CO LTD
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  • Electrically-driven hydraulic power-assisted steering system
  • Electrically-driven hydraulic power-assisted steering system
  • Electrically-driven hydraulic power-assisted steering system

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Embodiment Construction

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

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

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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 electrohydraulic power steering system. Background technique [0002] The power steering technology is the 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 lightness of the steering at low speeds and the good road feel at high speeds. The traditional hydraulic power steering system has fixed power assist characteristics, that is, if it is guaranteed that 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 must work regardless of whether the vehicle is turning or not when the ve...

Claims

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Application Information

Patent Timeline
31 Jul 2013
Publication
CN103223974A
IPC
B62D5/06; B62D5/04; B62D101/00; B62D123/00
Inventors
李磊; 李红志