The invention discloses an emergency steering system of an electric wide-body dump truck, and belongs to the technical field of off-highway wide-body dump trucks. The electric steering system is characterized in that the low-pressure electric pump is used as a small-flow steering hydraulic pump and is connected with the high-pressure electric steering pump in parallel, when a vehicle is started and powered on, the high-pressure electric steering pump and the low-pressure electric pump operate at the same time, part of oil discharged from a steering oil tank flows to the high-pressure electric steering pump and part of the oil flows to the low-pressure electric pump through a three-way connector, and hydraulic oil enters from an oil inlet M; hydraulic oil flowing out of the two pumps flows to a hydraulic control reversing valve after flowing to a three-way joint and converging, and flows to a subsequent steering system when a driver turns a steering wheel, and directly returns to a steering oil tank on the contrary; when the high-voltage electric steering pump breaks down and cannot be used, the low-voltage electric pump still operates, the emergency steering capacity can be provided, and safety is improved.
本发明公开了一种电动宽体自卸车的应急转向系统,属于非公路宽体自卸车技术领域;其特点是,低压电动泵当作小流量的转向液压泵使用,与高压电动转向泵并联,当车辆启动通电,高压电动转向泵及低压电动泵同时运转,转向油箱出油经三通接头,一部分流向高压电动转向泵,一部分流向低压电动泵,液压油皆从进油口M进,出油口T出,两泵流出的液压油流向三通接头合流后,流向液控换向阀,当驾驶员转方向盘时则流向后续转向系统,反之则直接回油至转向油箱;当高压电动转向泵出现故障无法使用时,低压电动泵依旧运转,可以提供应急转向能力,提升安全性。
Emergency steering system of electric wide-body dumper
一种电动宽体自卸车的应急转向系统
2022-10-25
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Emergency supplementary braking system and method for pure electric wide-body dumper
European Patent Office | 2023
|