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公开(公告)号：US11993266B1
公开(公告)日：2024-05-28
申请号：US18239614
申请日：2023-08-29
发明人： Dongwon Jeoung , Sunghyun Cho , Sangmo Ha , Jongyun Park , Jungwoo Seo
CPC分类号： B60W30/19 , B60W10/02 , B60W10/08 , B60W10/11 , B60W2540/10 , B60W2710/022 , B60W2710/083
摘要： A transmission control system of an electric vehicle includes a motor configured to generate drive torque; a transmission configured to perform multi-stage shifting using a dog clutch in a restraint relationship with a one-way clutch configured to transmit forward power of the motor; a speed sensor configured to measure a rotation speed on an output side of the transmission; a motor control unit configured to control the drive torque from the motor according to a driver's accelerator position signal (APS) value; and a vehicle control unit configured to control the multi-stage shifting of the transmission according to a torque command based on the APS value, and to perform clutch alignment control by moving up a sleeve in a reverse direction to contact a hub through a reverse rotation operation of gear teeth by applying reverse rotation torque of predetermined drive force through the motor in a pre-engagement state of the dog clutch.
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公开(公告)号：US20240190439A1
公开(公告)日：2024-06-13
申请号：US18239614
申请日：2023-08-29
发明人： Dongwon Jeoung , Sunghyun Cho , Sangmo Ha , Jongyun Park , Jungwoo Seo
CPC分类号： B60W30/19 , B60W10/02 , B60W10/08 , B60W10/11 , B60W2540/10 , B60W2710/022 , B60W2710/083
摘要： A transmission control system of an electric vehicle includes a motor configured to generate drive torque; a transmission configured to perform multi-stage shifting using a dog clutch in a restraint relationship with a one-way clutch configured to transmit forward power of the motor; a speed sensor configured to measure a rotation speed on an output side of the transmission; a motor control unit configured to control the drive torque from the motor according to a driver's accelerator position signal (APS) value; and a vehicle control unit configured to control the multi-stage shifting of the transmission according to a torque command based on the APS value, and to perform clutch alignment control by moving up a sleeve in a reverse direction to contact a hub through a reverse rotation operation of gear teeth by applying reverse rotation torque of predetermined drive force through the motor in a pre-engagement state of the dog clutch.
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