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公开(公告)号：US20240227579A1
公开(公告)日：2024-07-11
申请号：US18153194
申请日：2023-01-11
发明人： Yanan Zhao , Carol Okubo , Ming L. Kuang
IPC分类号： B60L15/20
CPC分类号： B60L15/2045 , B60L2240/421 , B60L2240/423
摘要： Methods and systems are provided, including a method for an electric vehicle having at least two motors providing drive torque. In one example, the method comprises operating with speed damping control, including determining that a first motor has more power authority than requested and a second motor has a shortage of power authority, and in response, reallocating power authority from the first motor to the second motor to increase usage of authorized power for speed damping. In one example of the method, the first motor and the second motor are in electronic communication with a centralized integrated control system.
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公开(公告)号：US20220242250A1
公开(公告)日：2022-08-04
申请号：US17167977
申请日：2021-02-04
发明人： Bryan Bolger , Carol Okubo
摘要： Methods and systems are provided for limiting requested wheel torque during startup of a vehicle having an electrified powertrain. In one example, a method may include, responsive to a discharge power currently available being less than or equal to a threshold discharge power, operating the vehicle while requesting the wheel torque at a feedforward torque limit, the feedforward torque limit being based on the discharge power and a threshold vehicle speed. In this way, large shifts in wheel torque may be avoided upon startup of the vehicle, thereby reducing noise, vibration, and harshness at the electrified powertrain.
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公开(公告)号：US11794588B2
公开(公告)日：2023-10-24
申请号：US17167977
申请日：2021-02-04
发明人： Bryan Bolger , Carol Okubo
CPC分类号： B60L15/20 , B60L58/12 , B60L2240/12
摘要： Methods and systems are provided for limiting requested wheel torque during startup of a vehicle having an electrified powertrain. In one example, a method may include, responsive to a discharge power currently available being less than or equal to a threshold discharge power, operating the vehicle while requesting the wheel torque at a feedforward torque limit, the feedforward torque limit being based on the discharge power and a threshold vehicle speed. In this way, large shifts in wheel torque may be avoided upon startup of the vehicle, thereby reducing noise, vibration, and harshness at the electrified powertrain.
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