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1. 发明申请

US20220118966A1 TECHNICAL FIELD OF METHOD OF CONTROLLING ELECTRIC VEHICLE AND DRIVE SYSTEM OF ELECTRIC VEHICLE 有权
公开(公告)号：US20220118966A1
公开(公告)日：2022-04-21
申请号：US17280617
申请日：2018-09-26
申请人： Nissan Motor Co., Ltd.
发明人： Takayuki Kagaya , Masato Koga , Yuuki Nakajima , Katsunori Tanaka , Tetsuya Iwasaki
IPC分类号： B60W20/20 , B60W20/40 , B60K6/442
摘要： A drive system of an electric vehicle includes: an internal combustion engine; a generating motor provided so as to be able to generate electricity by receiving motive force from the internal combustion engine; and a travel motor provided so as to be able to be driven by electric power generated by the generating motor, and the drive system is configured so as to be able to switch a series hybrid mode and an engine direct connected mode, the series hybrid mode being a mode in which, while the internal combustion engine and the drive wheel are linked via a first clutch so as to be unlinkable/linkable, the travel motor and the drive wheel are linked via a second clutch different from the first clutch so as to be unlinkable/linkable, and the travel motor is used as a drive power source such that the electric vehicle travels by transmitting motive force from the travel motor to the drive wheel, the engine direct connected mode being a mode in which at least one of the internal combustion engine and the generator is used as a drive power source such that the electric vehicle travels by transmitting motive force from the drive power source to the drive wheel. At a mode switching time from the engine direct connected mode to the series hybrid mode involving deceleration, when the rotation synchronization or the engagement of the second clutch on an engagement side is not completed before the vehicle speed is decelerated to a predetermined vehicle speed, the first clutch on a disengagement side is disengaged before the engagement of the second clutch is completed.

2. 发明授权

US11891045B2 Power transmission device for vehicle 有权
公开(公告)号：US11891045B2
公开(公告)日：2024-02-06
申请号：US17274587
申请日：2018-09-10
申请人： NISSAN MOTOR CO., LTD.
发明人： Yoshitaka Miura , Masato Koga , Takayuki Kagaya , Yuuki Nakajima , Katsunori Tanaka
IPC分类号： B60W20/20 , B60W10/02 , B60W10/06 , B60W10/08 , B60K6/387 , B60K6/442
CPC分类号： B60W20/20 , B60K6/387 , B60K6/442 , B60W10/026 , B60W10/06 , B60W10/08 , B60W2510/081 , B60W2510/244 , B60W2520/28 , B60W2710/0644 , B60W2710/081 , B60W2710/244 , B60Y2400/421
摘要： A power transmission device of the present invention is a power transmission device for a vehicle, including: a generator configured to be driven by power of an internal combustion engine; a travel motor configured to be driven by electric power generated by the generator and to drive a drive wheels; and the drive wheels configured to be driven by the power of the internal combustion engine or power of the travel motor. The power transmission device includes: a first power transmission path configured to transmit power between the travel motor and the drive wheels; and a first clutch mechanism configured to allow or interrupt power transmission through the first power transmission path.

3. 发明授权

US11951973B2 Technical field of method of controlling electric vehicle and drive system of electric vehicle 有权
公开(公告)号：US11951973B2
公开(公告)日：2024-04-09
申请号：US17280617
申请日：2018-09-26
申请人： Nissan Motor Co., Ltd.
发明人： Takayuki Kagaya , Masato Koga , Yuuki Nakajima , Katsunori Tanaka , Tetsuya Iwasaki
IPC分类号： B60W20/20 , B60K6/442 , B60W20/40
CPC分类号： B60W20/20 , B60K6/442 , B60W20/40 , B60W2510/0208 , B60W2520/10 , B60W2520/105 , B60W2520/12 , B60W2520/125 , B60W2540/12 , B60Y2200/92
摘要： A drive system of an electric vehicle includes: an internal combustion engine; a generating motor provided so as to be able to generate electricity by receiving motive force from the internal combustion engine; and a travel motor provided so as to be able to be driven by electric power generated by the generating motor, and the drive system is configured so as to be able to switch a series hybrid mode and an engine direct connected mode, the series hybrid mode being a mode in which, while the internal combustion engine and the drive wheel are linked via a first clutch so as to be unlinkable/linkable, the travel motor and the drive wheel are linked via a second clutch different from the first clutch so as to be unlinkable/linkable, and the travel motor is used as a drive power source such that the electric vehicle travels by transmitting motive force from the travel motor to the drive wheel, the engine direct connected mode being a mode in which at least one of the internal combustion engine and the generator is used as a drive power source such that the electric vehicle travels by transmitting motive force from the drive power source to the drive wheel. At a mode switching time from the engine direct connected mode to the series hybrid mode involving deceleration, when the rotation synchronization or the engagement of the second clutch on an engagement side is not completed before the vehicle speed is decelerated to a predetermined vehicle speed, the first clutch on a disengagement side is disengaged before the engagement of the second clutch is completed.

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