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公开(公告)号：US12017640B2
公开(公告)日：2024-06-25
申请号：US17684914
申请日：2022-03-02
发明人： Yutaro Fukuda , Tadashi Saito , Takahiro Kashimoto
IPC分类号： B60W20/40 , B60K6/387 , B60W10/02 , B60W30/192 , B60K6/26
CPC分类号： B60W20/40 , B60K6/387 , B60W10/023 , B60W30/192 , B60K2006/268 , B60W2710/083
摘要： A hybrid vehicle controlling method is provided. In response to an engine startup demand, when a vehicle target driving force is below a given value, an instruction hydraulic pressure for a hydraulic control circuit is set to a first pressure at which an increase rate in an engagement pressure at a start of engaging of a friction engagement element becomes below a given rate and maintained for a given time period, then set to a second pressure at which an engine-startup engagement pressure is applied to the friction engagement element and maintained until the engine startup is completed, and then set to a third pressure for setting the friction engagement element to an engaged state. When the target driving force is above the given value, the instruction hydraulic pressure is set to the second pressure and maintained until the engine startup is completed, and then set to the third pressure.
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公开(公告)号：US20220306083A1
公开(公告)日：2022-09-29
申请号：US17684914
申请日：2022-03-02
发明人： Yutaro Fukuda , Tadashi Saito , Takahiro Kashimoto
IPC分类号： B60W20/40 , B60K6/387 , B60W10/02 , B60W30/192
摘要： A hybrid vehicle controlling method is provided. In response to an engine startup demand, when a vehicle target driving force is below a given value, an instruction hydraulic pressure for a hydraulic control circuit is set to a first pressure at which an increase rate in an engagement pressure at a start of engaging of a friction engagement element becomes below a given rate and maintained for a given time period, then set to a second pressure at which an engine-startup engagement pressure is applied to the friction engagement element and maintained until the engine startup is completed, and then set to a third pressure for setting the friction engagement element to an engaged state. When the target driving force is above the given value, the instruction hydraulic pressure is set to the second pressure and maintained until the engine startup is completed, and then set to the third pressure.
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