Invention Grant
- Patent Title: Electric vehicle and diagnosis method for electric vehicle
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Application No.: US17493244Application Date: 2021-10-04
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Publication No.: US11699971B2Publication Date: 2023-07-11
- Inventor: Shohei Oi
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota
- Agency: Dinsmore & Shohl LLP
- Priority: JP 20169297 2020.10.06
- Main IPC: H02P27/06
- IPC: H02P27/06 ; H02P29/028 ; B60L50/51

Abstract:
An electric vehicle includes a traction motor, an inverter that supplies the motor with an alternating current, three current sensors that respectively measure current of each phase of the alternating current output by the inverter, the alternating current being a three phase alternating current; and a controller that controls the motor through the inverter. The controller is configured to, when one of the current sensors becomes unusable, identify the unusable current sensor while controlling the motor with a d-axis voltage command value set to zero and a q-axis voltage command value set to a non-zero value.
Public/Granted literature
- US20220109391A1 ELECTRIC VEHICLE AND DIAGNOSIS METHOD FOR ELECTRIC VEHICLE Public/Granted day:2022-04-07
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