电控/电动液压助力转向控制技术研究现状与展望

综述电控液压助力转向控制技术的控制策略、方法及其特点。常规电控液压助力转向技术提高了车辆高速转向路感及动态响应,但存在助力特性固定、能量消耗大等缺点。电动液压助力转向技术将成熟的电动机驱动技术与液压伺服技术相结合,在提高高速路感及动态响应的同时,具有节能、环保的优点。建议采用综合控制,进一步提高电动液压助力转向系统的节能、动态响应及自适应能力。

Review and Prospect of Electro-hydraulic Power Steering Research from the Viewpoint of Control

The control strategies, methods and characteristics for electro-hydraulic power steering were surveyed. It was discussed and summarized that the conventional electro-hydraulic power steering could improve driver's high speed road feel and vehicle's dynamics. Combining technology of electric motor drive with hydraulic servo, electric powered hydraulic power technology has the characteristics of improvement on driver's road feel, energy economy and environmental protection. The integrated control can farther improve the electric powered hydraulic steering system's energy economy, dynamic response and self-adaptability, which presents one of the developing directions of electro-hydraulic power steering.