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Hardware Design and Test of a Gear-Shifting Control System of a Multi-gear Transmission for Electric Vehicles 被引量:3
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作者 Feng Tian Liqi Sui +4 位作者 Yuanfan Zeng Bo Li Xingyue Zhou Lijun Wang Hongxu Chen 《Automotive Innovation》 EI CSCD 2019年第3期212-222,共11页
The performance of electric vehicles is affected by the shift quality of multi-gear transmission.The realization of dual-target tracking control requires the transmission control unit(TCU)to accurately measure and pro... The performance of electric vehicles is affected by the shift quality of multi-gear transmission.The realization of dual-target tracking control requires the transmission control unit(TCU)to accurately measure and process the input signals of the gear-shifting control system and precisely control the drive motor torque and the position of shift motors.An electric-vehicle-dedicated TCU was designed to meet the above design requirements.Its function modules included a single-chip control circuit,shift position signal sampling circuit,signal conditioning circuit of the rotational speed and angle,controller area network communication circuit,and shift motor drive circuit.A hardware-in-the-loop simulation test system showed that the TCU design scheme met measurement accuracy requirements and coordinated the actions of the shift actuator and motor control unit to achieve fast and smooth shifting before the road test.The power interruption time of the shifting process was within 350 ms.The reliability of the TCU design was further verified in a 150,000-km vehicle road test. 展开更多
关键词 Electric vehicles transmission control unit Multi-gear transmission Dual-target tracking control Hardware design Gear-shifting control
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