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A dual-source power steering system and control method for an electric bus

A technology for electric passenger cars and power steering, which is applied in the direction of automatic steering control components, steering mechanisms, steering rods, etc. It can solve problems such as disappearing immediately, affecting driving safety, and causing danger, so as to prevent power feeding and ensure steering reliability.

Active Publication Date: 2021-11-16
ZHONGTONG BUS HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the high-voltage power supply of the vehicle fails abnormally due to non-human factors, the electric steering system will stop working due to the high-voltage power failure of the electric steering controller, and the power steering of the vehicle will disappear immediately, causing the direction to rebound and causing danger.
Especially when the vehicle is turning at a high speed, the sudden loss of the power assist function will seriously affect driving safety

Method used

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  • A dual-source power steering system and control method for an electric bus

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Embodiment Construction

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] It should be noted that the following detailed description is illustrative and is intended to provide a further description of the present application. All techniques and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art of the present application.

[0030] It should be noted that the terms used herein are intended to describe specific embodiments, and not intended to limit the exemplary embodiments of the present application. As used herein, unless the context further explicitly indicates that the singular form is intended to include multiple forms, but it should be understood that when the term "including" and / or "includes" in this specification, it indicates There is a combination of features, steps, operations, devices, components, and / or their combinations.

[0031] In the present invention, the te...

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Abstract

The invention discloses a dual-source power-assisted steering system and a control method for an electric passenger car, aiming to solve the steering safety of the electric passenger car. Under normal conditions of the vehicle, by setting the power conversion device and a specific control method, the high-voltage power supply of the vehicle is given priority to supply power to the steering controller to ensure the continuous normal operation of the steering system; The seamless cut-in of the DC converter can use the low-voltage power supply to supply power to the steering controller to continuously maintain the power steering function, thereby ensuring the reliability of the steering during the driving process of the vehicle, and avoiding the sudden failure of the power steering due to abnormal high voltage power failure. security risks.

Description

Technical field [0001] The present invention relates to the field of design and manufacturing of electric passenger cars, and more particularly to an electric passenger car dual source boost steering system and a control method. Background technique [0002] Under normal circumstances, the electric steering controller of the electric passenger car is powered by the vehicle high voltage power supply to drive the electric power to turn to the oil pump motor, and work properly. However, the vehicle stops working due to the high voltage power supply caused by non-human factors, and the electric steering system will stop working due to the high voltage of the electric steering controller, and the power steering of the vehicle will disappear immediately, leading to the direction of the direction and happens. Especially when the vehicle is at a higher speed steering, the powerful loss will seriously affect the safety of driving. In order to solve this problem, the present invention prop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R16/03B62D5/06B62D6/00B62D101/00
CPCB60R16/03B62D5/06B62D6/00
Inventor 刘涛王波徐彪魏琳陈乐强
Owner ZHONGTONG BUS HLDG
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