Invention Grant
- Patent Title: Vehicle equipped with motor and inverter
- Patent Title (中): 配有电机和变频器的车辆
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Application No.: US12458762Application Date: 2009-07-22
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Publication No.: US07923961B2Publication Date: 2011-04-12
- Inventor: Naoyoshi Takamatsu , Masaki Okamura
- Applicant: Naoyoshi Takamatsu , Masaki Okamura
- Applicant Address: JP Toyota
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota
- Agency: Oliff & Berridge PLC
- Priority: JP2008-218166 20080827
- Main IPC: H02P23/00
- IPC: H02P23/00

Abstract:
A vehicle includes a motor for driving wheels WH, an inverter to drive the motor, and a control device to perform PWM control of the inverter. The control device performs synchronous PWM control in a case where an electric current supplied to the motor by the inverter or torque generated in the motor is larger than a threshold value; and performs the synchronous PWM control or non-synchronous PWM control in a case where the electric current or the torque is smaller than the threshold value and sets carrier frequency or a pulse number of the PWM control to be higher than the case where the electric current or the torque is larger than the threshold value. Thereby, it is possible to provide a vehicle of achieving reduction of noise, reduction of cost and improvement of fuel consumption in a balanced manner.
Public/Granted literature
- US20100052583A1 Vehicle equipped with motor and inverter Public/Granted day:2010-03-04
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