Sinusoidal stimulus response for input power health diagnostic
AssigneeSteering Solutions IP Holding Corporation
InventorsNicholas E. Gizinski, Julie A. Kleinau, David M. Williams, Clayton D. Larson, Steven J. Collier-Hallman, Ashish Verma
Life of this patent
Estimating the term…
Abstract
Technical solutions are described for diagnosing an input power supply providing power to a motor. A method includes: generating a sinusoidal stimulus signal; applying, using the input power supply, the sinusoidal stimulus signal to the motor; measuring a response to the sinusoidal stimulus signal; determining a degraded condition of the input power supply based on the response to the sinusoidal stimulus signal; and performing an action in response to determining the degraded condition of the input power supply.
Claims20
A method for diagnosing an input power supply providing power to a motor, the method comprising:
- generating a sinusoidal stimulus signal;
- applying, using the input power supply, the sinusoidal stimulus signal to the motor;
- measuring a response to the sinusoidal stimulus signal;
- calculating, based on the response to the sinusoidal stimulus signal, a metric indicative of a status of the input power supply;
- determining a degraded condition of the input power supply based on the response to the sinusoidal stimulus signal;
- and
- performing an action in response to determining the degraded condition of the input power supply.
A method for diagnosing an input power supply providing power to a motor, the method comprising:
- generating a stimulus signal having a stimulus magnitude;
- applying, using the input power supply, the stimulus signal to the motor;
- measuring a response to the stimulus signal;
- determining a degraded condition of the input power supply based on the response to the stimulus signal;
- and
- performing an action in response to determining a degraded condition of the input power supply,
- wherein the degraded condition of the input power supply includes a harness resistance value, and
- wherein generating the stimulus signal includes determining the stimulus magnitude based on an estimate of the harness resistance value.
A system for diagnosing an input power supply providing power to a motor, the system comprising:
- a processor and a memory including instructions that, when executed by the processor, cause the processor to:
- generate a sinusoidal stimulus signal;
- apply, using the input power supply, the sinusoidal stimulus signal to the motor;
- measure a response to the sinusoidal stimulus signal;
- determine a degraded condition of the input power supply based on the response to the sinusoidal stimulus signal;
- and
- perform an action in response to determining the degraded condition of the input power supply.
Dependencies are inferred from the claim text.