Invention Grant
- Patent Title: Vehicle
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Application No.: US17551639Application Date: 2021-12-15
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Publication No.: US11722080B2Publication Date: 2023-08-08
- Inventor: Hiroshi Monna , Shinichiro Noda , Junichi Murase , Takuya Horie
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , SUBARU CORPORATION
- Applicant Address: JP Toyota
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA,SUBARU CORPORATION
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA,SUBARU CORPORATION
- Current Assignee Address: JP Toyota; JP Tokyo
- Agency: Dinsmore & Shohl LLP
- Priority: JP 20214090 2020.12.23
- Main IPC: H02P21/14
- IPC: H02P21/14 ; B60L15/20 ; B60K1/02

Abstract:
A vehicle includes a main motor for traveling and an electronic control unit that controls the main motor. The electronic control unit is configured to: extract, from time series data of a rotation speed of the main motor, vibration data in a predetermined frequency band that includes resonance frequency of a drive system that includes the main motor; lower an upper limit value of output torque of the main motor from a normal upper limit value to a first upper limit value lower than the normal upper limit value when magnitude of vibration obtained from the extracted vibration data exceeds a first threshold value; and lower the upper limit value of output torque of the main motor to a second upper limit value lower than the first upper limit value when the magnitude of the vibration exceeds a second threshold value larger than the first threshold value.
Public/Granted literature
- US20220200496A1 VEHICLE Public/Granted day:2022-06-23
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