Motor control unit and vehicle equipped therewith

Details Motor control unit and vehicle equipped therewith Motor control unit and vehicle equipped therewith

2005-12-27

2010-02-16

Ip, Paul (Department: 2837)

Electricity: motive power systems

Constant motor current, load and/or torque control

C318S430000, C318S727000, C318S799000, C180S065100, C180S065310, C180S065800

Reexamination Certificate

active

07663329

ABSTRACT:
A motor unit and a vehicle equipped with the unit according to the invention includes a control unit that selects a switching frequency, that is, a carrier frequency, in accordance with a rotation speed of the motor and a torque required from a motor. When an inverter temperature becomes high, the control unit limits the torque of the motor to suppress further increase in the inverter temperature. A limit value used in restricted operation is determined in accordance with the temperature and the carrier frequency of the inverter.

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