The invention discloses an electric automobile hub hydraulic motor driving system. The system comprises wheels (8), a storage battery pack (3), a DC/DC converter (2), a motor (4), an electric controlunit (1), a hydraulic transmission system and a stepless speed change automatic control system, wherein the hydraulic transmission system comprises an oil tank (5), a one-way variable pump (6), two high-speed switch valves (10) of a left wheel loop and a right wheel loop, two reversing valves (7) and two hub hydraulic motors (9), which are connected through oil pipes; and the stepless speed changeautomatic control system comprises a wheel speed sensor (13), an accelerator pedal position sensor (11), a brake pedal position sensor (15), a speed change controller (14) and a pulse modulator (12).The stepless speed change of the electric automobile can be realized, a speed reducer and a differential mechanism are omitted, the unsprung mass of the automobile is reduced, the spatial arrangementof the motor and a power supply is flexible, and the integrated control of driving, braking and steering of the electric automobile is easy to realize.
本发明公开了一种电动汽车轮毂液压马达驱动系统,包括车轮(8)、蓄电池组(3)、DC/DC变换器(2)、电动机(4)和电控单元(1)、液压传动系统和无级变速自动控制系统。其中,液压传动系统包括通过油管相连接的油箱(5)、单向变量泵(6)和左、右车轮回路的两个高速开关阀(10)、两个换向阀(7)和两个轮毂液压马达(9);无级变速自动控制系统包括轮速传感器(13)、油门踏板位置传感器(11)、制动踏板位置传感器(15)、变速控制器(14)和脉冲调制器(12)。本发明可以使电动汽车实现无级变速,同时省去了减速器及差速器,减轻了汽车的非簧载质量,使得电机和电源的空间布置更灵活,并且易于实现电动汽车的驱动、制动和转向的一体化控制。
Electric automobile hub hydraulic motor driving system
一种电动汽车轮毂液压马达驱动系统
2020-06-19
Patent
Elektronische Ressource
Chinesisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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