The invention relates to an electric wide-body vehicle and provides an electric wide-body vehicle and a slow-down control method and device thereof in order to solve the problem that motor braking of an existing electric wide-body vehicle possibly cannot assist speed reduction, and the electric wide-body vehicle comprises an electrically-driven walking transmission system and a compartment lifting hydraulic system. A lifting pump of the lifting hydraulic system is installed on a gearbox of the walking transmission system and driven by the gearbox of the walking transmission system, the lifting hydraulic system comprises a lifting control valve connected with a pump opening of the lifting pump, an electromagnetic overflow valve with adjustable overflow pressure and a radiator, and the oil inlet end of the electromagnetic overflow valve is communicated with the pump opening of the lifting pump. And the oil outlet end is communicated with the hydraulic oil tank through the radiator. When the electric wide-body vehicle cannot completely convert potential energy of downhill slow running of the vehicle into electric energy to be stored, the potential energy of the vehicle is converted into hydraulic energy through the reverse dragging lifting pump, then the hydraulic energy is converted into heat energy through high-pressure overflow of the electromagnetic overflow valve to be consumed, and safe running of the vehicle is achieved.
本发明涉及电动宽体车,为解决现有电动宽体车电机制动可能存在无法辅助降速的问题,本发明构造一种电动宽体车及其缓行控制方法、装置,其中电动宽体车包括电驱动行走传动系统和车厢举升液压系统,举升液压系统的举升泵安装在行走传动系统的变速箱上并由其驱动,举升液压系统包括与举升泵泵口连接的举升控制阀、溢流压力可调的电磁溢流阀和散热器,电磁溢流阀的进油端与举升泵的泵口连通,出油端经所述散热器与液压油箱连通。在本发明中当电动宽体车无法将车辆下坡缓行的势能全部转化为电能存储时,通过反拖举升泵将车辆势能转化为液压能,再通过电磁溢流阀高压溢流转化为热能消耗掉,实现车辆安全行驶。
Electric wide-body vehicle and slow moving control method and device thereof
电动宽体车及其缓行控制方法、装置
14.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS |
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