公开(公告)号：EP4421355A1

公开(公告)日：2024-08-28

申请号：EP22965369.6

申请日：2022-12-08

申请人： ZHEJIANG ZEEKR INTELLIGENT TECHNOLOGY CO., LTD. ,  VIRIDI E-MOBILITY TECHNOLOGY (NINGBO) CO., LTD. ,  Zhejiang Geely Holding Group Co., Ltd

发明人： SHEN, Keqing ,  CHEN, Dong ,  DONG, Qiao ,  LIU, Wenliang ,  MA, Yingguo ,  SHI, Zouyun ,  CHEN, Qimiao ,  SUN, Huian ,  GU, Bin ,  RUAN, Ou ,  LI, Changluo

IPC分类号： F16H59/02 ,  B60W30/20

摘要： The present application provides an automatic shift control method, apparatus, device and storage medium. A vehicle is controlled to perform an elastic release operation in response to a drive switching request. When unloading torque of a first electric machine of the vehicle is completed, a moving component of a disengaging and engaging apparatus of the vehicle is controlled to perform a position adaptive operation. Meshing direction and separation control is performed on the moving component when a rotational speed of the moving component reaches a stable state, to cause the moving component to move in a disengaging direction to a completely disengaged position, and switch of the vehicle from a four-wheel drive power mode to a two-wheel drive mode is completed. Speed difference of the moving component of the disengaging and engaging apparatus is effectively reduced or eliminated when the four-wheel drive power mode is switched to the two-wheel drive power mode, impact of the moving component is avoided, non-contact control or control with contact but without torque transmission is achieved for the moving component. The disengaging and engaging apparatus can be disengaged without impact and noise, realizing imperceptible automatic shift control and improving driving experience of the vehicle.

公开(公告)号：EP4450350A1

公开(公告)日：2024-10-23

申请号：EP23844762.7

申请日：2023-01-16

申请人： Zhejiang Zeekr Intelligent Technology Co., Ltd ,  VIRIDI E-MOBILITY TECHNOLOGY (NINGBO) CO., LTD. ,  Zhejiang Geely Holding Group Co., Ltd.

发明人： SHEN, Keqing ,  MA, Yingguo ,  CHEN, Dong ,  CHEN, Qimiao ,  LI, Changluo

IPC分类号： B60W30/20 ,  B60W10/04 ,  B60W40/10

摘要： The present application relates to the field of electric vehicles, and particularly to an electric vehicle and an electric-machinery control method therefor, an apparatus and a storage medium. The electric-machinery control method for the electric vehicle of the present application includes: detecting a relative deformation amount of a transmission system between a driving gear and a wheel end of an electric machinery; determining a first speed differential value between a first driving-gear rotational speed and a first wheel-end converted rotational speed when the relative deformation amount is a first threshold value, where the relative deformation amount being the first threshold value is used for indicating that the driving gear and a driven gear of the transmission system start to disengage, the first driving-gear rotational speed is a rotational speed of the driving gear at a disengagement moment that the driving gear and the driven gear disengage, and the first wheel-end converted rotational speed is a rotational speed obtained by performing a speed ratio conversion on a rotational speed of the wheel end of the electric vehicle at the disengagement moment; determining an output torque of the electric machinery according to the first speed differential value; controlling the driving gear to perform a gear-approaching operation relative to the driven gear according to the output torque, so as to reduce or even avoid problems of large vibration and noise of the electric machinery and the transmission system.

公开(公告)号：EP4431354A1

公开(公告)日：2024-09-18

申请号：EP22952376.6

申请日：2022-07-28

申请人： ZHEJIANG ZEEKR INTELLIGENT TECHNOLOGY CO., LTD. ,  VIRIDI E-MOBILITY TECHNOLOGY (NINGBO) CO., LTD. ,  Zhejiang Geely Holding Group Co., Ltd.

发明人： SHEN, Keqing ,  MA, Yingguo ,  CHEN, Qimiao

IPC分类号： B60W10/08 ,  B60L15/20

CPC分类号： B60W10/04 ,  B60W30/20 ,  B60W40/10 ,  B60L15/20 ,  B60W10/08 ,  Y02T10/72

摘要： The present application belongs to the field of electric vehicle technology and specifically relates to an electric vehicle, a motor control method thereof, an apparatus and a storage medium. The motor control method of the electric vehicle of the present application includes: detecting a relative deformation of a transmission system between a driving gear and a wheel end of a motor; determining a first speed difference value of a first driving gear rotation speed and a first wheel end conversion rotation speed when the relative deformation is a first threshold, where the relative deformation being the first threshold value is used to indicate that the driving gear starts to disengage from a driven gear of the transmission system, the first driving gear rotation speed is a rotation speed of the driving gear at a disengagement moment of the driving gear and the driven gear, and the first wheel end conversion rotation speed is a rotation speed obtained by performing a speed ratio conversion on the wheel end rotation speed of the electric vehicle at the disengagement moment; determining an output torque of the motor according to the first speed difference value; and controlling the driving gear to perform a tooth approaching operation relative to the driven gear according the output torque. Therefore, problems of larger vibration and noise of the motor and the transmission system can be reduced or even avoided.