The invention relates to the technical field of engineering machinery steering systems, and in particular relates to an energy storage emergency steering module, a hydraulic steering system and a control method thereof. The energy storage emergency steering module is used for the hydraulic steering system and comprises an energy accumulator, a first control valve and a second control valve. The first control position is used for being communicated with a hydraulic pump and a power steering gear of the hydraulic steering system, and a second control position is used for being communicated withthe hydraulic pump and the energy accumulator. The second control valve is used for communicating the energy accumulator with the power steering gear. The energy storage emergency steering module is additionally arranged in a traditional electric hydraulic steering system; during conventional runtime of engineering machinery, the hydraulic pump builds pressure to drive the power steering gear, thehydraulic steering system can normally operate and charge the energy accumulator of the energy storage emergency steering module; when the hydraulic pump is abnormal and cannot provide pressure, theenergy accumulator can achieve reliable auxiliary emergency steering, and therefore the problem that emergency steering cannot be achieved due to the fact that the hydraulic pump of engineering machinery is abnormal is solved.
本申请涉及工程机械转向系统技术领域,尤其是涉及一种蓄能应急转向模块、液压转向系统及其控制方法。所述蓄能应急转向模块,用于液压转向系统,包括蓄能器、第一控制阀和第二控制阀;所述第一控制位用于连通液压转向系统的液压泵和动力转向器,所述第二控制位用于连通液压泵和所述蓄能器;所述第二控制阀用于连通所述蓄能器和所述动力转向器。通过在传统的电动液压转向系统中加入蓄能应急转向模块,在工程机械常规运行时,液压泵建压驱动动力转向器,液压转向系统能够正常运行并为蓄能应急转向模块的蓄能器充能,当液压泵出现异常无法提供压力时,蓄能器能够实现可靠的辅助应急转向,从而解决了工程机械的液压泵异常而无法实现应急转向的问题。
Energy storage emergency steering module, hydraulic steering system and control method thereof
蓄能应急转向模块、液压转向系统及其控制方法
2020-10-16
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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