Thermal lockout for a motor of a gate crossing mechanism
AssigneeSiemens Mobility GmbH
InventorsQuinton Reed, Leah Chowenhill
Life of this patent
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Abstract
Examples described herein provide a computer-implemented method for thermal lockout for a motor of a gate crossing mechanism. The method includes monitoring a motor current across a sense resistor of the motor. The method further includes determining a present thermal capacity unit (TCU) at a time interval based on the motor current across the sense resistor. The method further includes determining whether the motor is at a thermal limit by comparing the present TCU to an expected TCU. The method further includes responsive to determining that the motor is at the thermal limit, causing initiating a hard fault.
Claims20
A computer-implemented method for thermal lockout for a motor of a gate crossing mechanism, the method comprising:
- monitoring a motor current across a sense resistor of the motor;
- determining a present thermal capacity unit (TCU) at a time interval based on the motor current across the sense resistor;
- determining whether the motor is at a thermal limit by comparing the present TCU to an expected TCU;
- and
- responsive to determining that the motor is at the thermal limit, causing initiating a hard fault.
A system comprising:
- a memory comprising computer readable instructions;
- and
- a processing device for executing the computer readable instructions, the computer readable instructions controlling the processing device to perform operations for thermal lockout for a motor of a gate crossing mechanism, the operations comprising:
- monitoring a motor current across a sense resistor of the motor;
- determining a present thermal capacity unit (TCU) at a time interval based on the motor current across the sense resistor;
- determining whether the motor is at a thermal limit by comparing the present TCU to an expected TCU;
- and
- responsive to determining that the motor is at the thermal limit, causing initiating a hard fault.
A computer program product comprising a non-transitory computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform operations for thermal lockout for a motor of a gate crossing mechanism, the operations comprising:
- monitoring a motor current across a sense resistor of the motor;
- determining a present thermal capacity unit (TCU) at a time interval based on the motor current across the sense resistor;
- determining whether the motor is at a thermal limit by comparing the present TCU to an expected TCU;
- and
- responsive to determining that the motor is at the thermal limit, causing initiating a hard fault.
Dependencies are inferred from the claim text.