Apparatus for detecting motor failure
AssigneeHyundai Mobis Co., Ltd.
InventorGwang Hyun Gye
Life of this patent
Estimating the term…
Abstract
An apparatus for detecting a motor failure may include: a first motor failure detector configured to apply a reference voltage for failure detection to a motor, and then detect a changed voltage; a first motor power switch and a second motor power switch configured to switch both terminal voltages applied to drive the motor; a gate amplifier configured to apply a gate signal for controlling the turn on/off of the first and second motor power switches; and a controller configured to diagnose a failure of the motor controlled in one way, on the basis of voltages detected by the first and second motor power switches and the first motor failure detector, respectively.
Claims20
An apparatus for detecting a motor failure, comprising:
- a first motor failure detector configured to detect a voltage after applying a reference voltage for failure detection to a motor;
- a first motor power switch and a second motor power switch configured to switch respective terminal voltages applied to drive the motor;
- a gate amplifier configured to apply a gate signal for controlling turning on/off of the first and second motor power switches;
- and
- a controller configured to diagnose a failure of the motor controlled in one direction of current flowing, based on the voltage detected by the first motor failure detector and potential differences of the first and second motor power switches.
An apparatus for detecting a motor failure, comprising:
- a first motor failure detector configured to detect a voltage after applying a reference voltage for failure detection to a motor;
- a first motor power switch and a second motor power switch configured to switch respective terminal voltages applied to drive the motor;
- a gate amplifier configured to apply a gate signal for controlling turning on/off of the first and second motor power switches;
- a plurality of motor driving switches switched according to an order designated by the gate amplifier when the first and second motor power switches are turned on, and configured to drive a motor, controlled in two directions of current flowing or a 3-phase manner, in a designated direction;
- and
- a controller configured to diagnose a failure of the motor, based on the voltage detected by the first motor failure detector and potential differences of the first and second motor power switches.
Dependencies are inferred from the claim text.