Method and device for generating feedback torque in case of motor fault in SFA system
AssigneeHl Mando Corporation
InventorTaesik Kim
Life of this patent
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Abstract
The present disclosure relates to a method of generating feedback force in case of a motor fault in a Steering Feedback Actuator (SFA) system. The method includes: determining whether a fault occurs in a motor associated with an SFA system; determining the type of fault when it is determined that the fault occurs in the motor; and generating feedback force associated with the SFA system by controlling the motor based on the determined type of fault.
Claims14
A method of generating feedback force when a motor of a Steering Feedback Actuator (SFA) system has a fault, the method being performed by at least one processor, the method comprising:
- determining whether a fault occurs in a motor associated with an SFA system;
- determining the type of fault when it is determined that the fault occurs in the motor;
- and
- generating feedback force associated with the SFA system by controlling the motor based on the determined type of fault,
- wherein the motor is associated with a three-phase inverter including a U-phase, a V-phase, and a W-phase,
- wherein the inverter is associated with a battery cutoff switch which blocks a high current between a battery associated with the motor and the inverter, and
- the battery cutoff switch is controlled based on whether the fault occurs in the motor,
- wherein the type of fault includes a first fault type in which any one phase among the U-phase, the V-phase, and the W-phase is open, a second fault type in which any one of phase among the U-phase, the V-phase, and the W-phase is short, and a third fault type in which any two phases among the U-phase, the V-phase, and the W-phase are interphase short.
A computing device, comprising:
- a communication module;
- a memory;
- and
- at least one processor connected with the memory and configured to execute at least one computer readable program included in the memory,
- wherein the said at least one program includes commands for
- determining whether a fault occurs in a motor associated with an SFA system,
- determining the type of fault when it is determined that the fault occurs in the motor;
- and
- generating feedback force associated with the SFA system by controlling the motor based on the determined type of fault,
- wherein the motor is associated with a three-phase inverter including a U-phase, a V-phase, and a W-phase,
- wherein the inverter is associated with a battery cutoff switch which blocks a high current between a battery associated with the motor and the inverter, and
- the battery cutoff switch is controlled based on whether the fault occurs in the motor,
- wherein the type of fault includes a first fault type in which any one phase among the U-phase, the V-phase, and the W-phase is open, a second fault type in which any one of phase among the U-phase, the V-phase, and the W-phase is short, and a third fault type in which any two phases among the U-phase, the V-phase, and the W-phase are interphase short.
Dependencies are inferred from the claim text.