公开(公告)号：US20230373295A1

公开(公告)日：2023-11-23

申请号：US18144454

申请日：2023-05-08

申请人： SUBARU CORPORATION

发明人： Yoshinobu YAMAZAKI ,  Masami OGURI ,  Akihiro Nabeshima ,  Yoshiyuki JIN ,  Takeshi YONEDA ,  Fumiya SATO ,  Hiroshi KUSANO ,  Keigo YAMADA ,  Takumi ARAKI ,  Shuntaro MIURA

IPC分类号： B60K17/346 ,  B60K17/356 ,  B60K1/02 ,  B60L7/18 ,  B60L7/24

CPC分类号： B60K17/3462 ,  B60K17/356 ,  B60K1/02 ,  B60L7/18 ,  B60L7/24

摘要： A drive system for a four-wheel drive vehicle including a friction brake system includes a first motor and a second motor, a propeller shaft for transmitting power between a front-wheel side and a rear-wheel side, a first differential mechanism configured to divide output torque of the first motor between a left wheel on one side of the front-wheel side and the rear-wheel side and the other side, a second differential mechanism configured to divide output torque of the second motor between a right wheel on the one side and the other side, and a control device for controlling regenerative braking force related to the first motor and the second motor and friction braking force related to the friction brake system. The first and second differential mechanisms are configured such that the ratio of output torque allocated to the front-wheel side is 50% or more.

公开(公告)号：US20230294525A1

公开(公告)日：2023-09-21

申请号：US18116947

申请日：2023-03-03

申请人： SUBARU CORPORATION

发明人： Yoshinobu YAMAZAKI ,  Masami OGURI ,  Akihiro NABESHIMA ,  Yoshiyuki JIN ,  Takeshi YONEDA ,  Fumiya SATO ,  Hiroshi KUSANO ,  Keigo YAMADA ,  Takumi ARAKI ,  Shuntaro MIURA ,  Susumu ITO

IPC分类号： B60L50/60 ,  B60W30/18 ,  B60L15/20

CPC分类号： B60L50/60 ,  B60W30/18127 ,  B60L15/2009 ,  B60L2240/423 ,  B60L2240/12

摘要： A power distribution apparatus for an electric vehicle includes a power distribution mechanism configured to distribute power output from an electric motor to front and rear wheels, and a controller configured to control the power distribution mechanism. The power distribution mechanism includes a first clutch configured to fix a power distribution ratio during straight traveling to a first distribution ratio at which first power distributed to the rear wheels and second power distributed to the front wheels are nearly same, and a second clutch configured to fix the power distribution ratio during straight traveling to a second distribution ratio at which the first power is larger than the second power. The controller is configured set the second clutch to an engaged state and sets the first clutch to a half-engaged state during regenerative braking.

公开(公告)号：US20240092337A1

公开(公告)日：2024-03-21

申请号：US18466197

申请日：2023-09-13

申请人： SUBARU CORPORATION

发明人： Hiroshi KUSANO ,  Yoshinobu YAMAZAKI ,  Masami OGURI ,  Akihiro NABESHIMA ,  Yoshiyuki JIN ,  Takeshi YONEDA ,  Fumiya SATO ,  Keigo YAMADA ,  Takumi ARAKI ,  Shuntaro MIURA

IPC分类号： B60W10/119 ,  B60K1/02 ,  B60K1/04 ,  B60L58/22 ,  B60W10/08

CPC分类号： B60W10/119 ,  B60K1/02 ,  B60K1/04 ,  B60L58/22 ,  B60W10/08 ,  B60L7/10 ,  B60L2240/463 ,  B60L2240/54 ,  B60W2510/244 ,  B60W2710/083

摘要： A vehicle control apparatus includes front-wheel and rear-wheel driving systems, and a control system. The front-wheel driving system includes a first travel motor mechanically coupled to a front wheel of a vehicle and a first accumulator electrically coupled to the first travel motor. The rear-wheel driving system includes a second travel motor mechanically coupled to a rear wheel of the vehicle and a second accumulator electrically coupled to the second travel motor. The control system includes one or more processors and one or more memories communicably coupled to the one or more processors, and controls the first and second travel motors. When a difference between an SOC of the first accumulator and an SOC of the second accumulator is greater than a threshold value, the one or more processors change a torque distribution ratio between the first and second travel motors from a reference distribution ratio.

公开(公告)号：US20230311671A1

公开(公告)日：2023-10-05

申请号：US18124452

申请日：2023-03-21

申请人： SUBARU CORPORATION

发明人： Keigo YAMADA ,  Yoshinobu YAMAZAKI ,  Yoshiyuki JIN ,  Akihiro NABESHIMA ,  Takeshi YONEDA ,  Fumiya SATO ,  Hiroshi KUSANO ,  Takumi ARAKI ,  Shuntaro MIURA

IPC分类号： B60L15/20 ,  B60L7/26

CPC分类号： B60L15/2009 ,  B60L7/26 ,  B60L2240/423

摘要： An electric vehicle includes a motor and a controller. The controller is configured to; based on determining that the electric motor is in the locked state, set a search target torque greater than a value of torque demanded by a driver, and execute a increase of the motor torque up to the set target torque; upon making a determination that the locked state is ceased, store a value of the target torque at a time of making the determination, and execute a decrease of the target torque; and when a second value of the torque demanded by the driver becomes the value of the target torque or more after the decrease of the target torque, set a second value of the target torque in accordance with the second value of the torque demanded by the driver, and drive the electric motor in accordance with the set target torque.