DEVICE FOR CONTROLLING A MULTI-PHASE MOTOR

摘要

An electronic device is for controlling motor drive circuits for driving a multi-phase motor in a force assisted system. Each motor drive circuit selectively permitting current to flow into or out of a respective phase of the multi-phase motor connected to the motor drive circuit in response to being driven by respective control signals. A motor control circuit generates the control signals. A fault processor detects at least one fault condition causing a fault current in a first motor drive circuit. In the event of the fault condition being detected, at least one alternative control signal is generated for at least one motor drive circuit for permitting at least one compensation current to flow for reducing a faulty force due to the fault current.

主权项

1. An electronic device for controlling motor drive circuits for driving a multi-phase motor in a force assisted system, the motor drive circuits being coupled to a supply voltage, each motor drive circuit selectively permitting current to flow into or out of a respective phase of the multi-phase motor connected to the motor drive circuit in response to being driven by respective control signals,
the device comprising a motor control circuit for generating the control signals and a fault processor for detecting at least one fault condition causing a fault current in a first motor drive circuit and, in the event of the fault condition being detected, generating at least one alternative control signal for at least one motor drive circuit for permitting at least one compensation current to flow for reducing a faulty force due to the fault current.