The invention provides a jacking device for jacking a vehicle engine cover, a vehicle and a control method of the vehicle, the jacking device designs axial sliding fit of a piston rod relative to a piston barrel and axial sliding fit of the piston barrel relative to a shell, and a gas generator is located below the piston rod and the piston barrel. When a vehicle collides with a pedestrian, the gas generator is triggered to generate strong airflow, and the airflow directly acts on the piston rod to push the piston rod out of the piston cylinder until the piston rod is limited by the first limiting mechanism and cannot continuously move relative to the piston rod; the piston rod is pushed to drive the piston barrel to move out of the shell through the first limiting mechanism until the piston barrel is limited by the second limiting mechanism, and the piston rod lifts the engine cover to the required height. Thus, the two-section type lifting structure can provide a large lifting height while reducing the height of the jacking device shell, the height requirement for lifting the engine hood is met, and the installation and layout difficulty of the engine hood is reduced.
本发明提供了用于顶升车辆引擎盖的顶升器、车辆及其控制方法,顶升器设计活塞杆相对于活塞筒的轴向滑动配合及活塞筒相对于外壳的轴向滑动配合,气体发生器位于活塞杆及活塞筒下方。当车辆碰撞到行人,触发气体发生器产生强大气流,气流直接作用于活塞杆,将活塞杆推出活塞筒外,至被第一限位机构限制而不可相对活塞杆继续移动,此时气流继续对活塞杆产生推动力,推动活塞杆通过第一限位机构带动活塞筒向外壳外移动,直到活塞筒被第二限位机构限制,活塞杆将上方引擎盖抬升至需求高度。这样,该两段式抬升结构,能够在缩小顶升器外壳高度的同时提供较大抬升高度,满足引擎盖抬升的高度需求,降低其安装布局难度。
Jacking device for jacking engine hood of vehicle, vehicle and control method of jacking device
用于顶升车辆引擎盖的顶升器、车辆及其控制方法
2024-12-10
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |