Vehicle steering system and vehicle steering control method

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Vehicle steering system and vehicle steering control method

Freier Zugriff

ZHOU ERCHAO / LIU XUE / SI XIAOYUN / JING KAI / PEI WEICHAO / LIU NAN / LI ZHONGXU / ZHANG LEI / QU CHENGWEI / WANG ZHEN

Abstract

The invention relates to the technical field of vehicles, and discloses a vehicle steering system and a vehicle steering control method. The vehicle steering system comprises a hydraulic steering gear, a double-winding power-assisted motor and a hydraulic redundant power-assisted unit, when the switching valve is in a first working state, the first power-assisted oil pump provides high-pressure oil for the hydraulic steering gear, the second power-assisted oil pump idles, the double-winding power-assisted motor provides first power-assisted torque for the hydraulic steering gear, and when the first power-assisted oil pump breaks down, the hydraulic redundant power-assisted unit is started. The switching valve can be switched from the first working state to the second working state through flow induction, when the switching valve is in the second working state, the second power-assisted oil pump provides high-pressure oil for the hydraulic steering gear, and the double-winding power-assisted motor provides second power-assisted torque for the hydraulic steering gear. The requirement for high steering safety of the heavy commercial vehicle under the special working condition can be met, and when main hydraulic power assisting fails or electric power assisting fails, the vehicle can still conduct normal steering operation.

本发明涉及车辆技术领域，公开一种车辆转向系统及车辆转向控制方法。车辆转向系统包括液压转向器、双绕组助力电机和液压冗余助力单元，切换阀处于第一工作状态时，第一助力油泵为液压转向器提供高压油液，第二助力油泵空转，双绕组助力电机向液压转向器提供第一助力力矩，第一助力油泵出现故障时，切换阀能够通过流量感应由第一工作状态切换至第二工作状态，切换阀处于第二工作状态时，第二助力油泵为液压转向器提供高压油液，双绕组助力电机向液压转向器提供第二助力力矩。本发明能够满足重型商用车在特殊工况下对转向高安全性的需求，当主液压助力失效或者电动助力失效时，车辆仍然可以进行正常转向操作。

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Dokumentinformationen

Titel :

Vehicle steering system and vehicle steering control method

Weitere Titelangaben:

车辆转向系统及车辆转向控制方法

Beteiligte:

ZHOU ERCHAO (Autor:in) / LIU XUE (Autor:in) / SI XIAOYUN (Autor:in) / JING KAI (Autor:in) / PEI WEICHAO (Autor:in) / LIU NAN (Autor:in) / LI ZHONGXU (Autor:in) / ZHANG LEI (Autor:in) / QU CHENGWEI (Autor:in) / WANG ZHEN (Autor:in)

Erscheinungsdatum :

2023-06-06

Medientyp :

Patent

Format :

Elektronische Ressource

Sprache :

Chinesisch

Klassifikation :

IPC:

B62D MOTOR VEHICLES , Motorfahrzeuge

Vehicle steering system and vehicle steering control method

Vehicle steering system and vehicle steering control method

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