The invention belongs to the technical field of vehicle engineering and provides a hydraulic power-assisted steering control unit, a hydraulic power-assisted steering system and a vehicle. The hydraulic power-assisted steering control unit comprises a power-assisted oil inlet path, a throttling oil path, a power-assisted working oil path and a fixed-difference pressure-reducing oil path, the power-assisted working oil path is connected with the power-assisted oil inlet path, the throttling oil path comprises a throttling input section and a throttling output section which are sequentially connected, the throttling input section is connected to the power-assisted oil inlet path, the throttling output section is connected to the power-assisted working oil path, and the fixed-difference pressure-reducing oil path is connected to the power-assisted working oil path. One end of the fixed-difference pressure reducing oil way is connected with the boosting oil inlet way, the other end of the fixed-difference pressure reducing oil way is connected with the oil return way, a fixed-difference pressure reducing valve is arranged on the fixed-difference pressure reducing oil way and provided with a pressure reducing control valve port, and the pressure reducing control valve port is connected to the throttling output section through a pipeline. The fixed differential pressure reducing valve and the throttling structure are connected in parallel to form the speed reducing valve, the flow of hydraulic oil supplied to the power-assisted working oil way from the power-assisted oil inlet way can be stabilized, and meanwhile the flow stabilizing mode is low in installation requirement and convenient to assemble.
本发明属于车辆工程技术领域并提供一种液压助力转向控制单元、液压助力转向系统及车辆。液压助力转向控制单元包括助力进油路、节流油路、助力工作油路和定差减压油路,助力工作油路与助力进油路连接,节流油路包括依次连接的节流输入段和节流输出段,节流输入段连接至助力进油路,节流输出段连接至所述助力工作油路,定差减压油路的一端连接助力进油路,另一端连接回油路,定差减压油路上设有定差减压阀,定差减压阀设有减压控制阀口,减压控制阀口管路连接至节流输出段。通过将定差减压阀与节流结构并联形成减速阀,能够对助力进油路供向助力工作油路的液压油流量进行稳流,同时该稳流方式安装要求低,方便装配。
Hydraulic power steering control unit, hydraulic power steering system and vehicle
液压助力转向控制单元、液压助力转向系统及车辆
2025-02-07
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
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