Method for detecting and controlling movement of an actuated component
AssigneeCaterpillar Inc.
InventorsDaniel Puckett, David Schuh
Life of this patent
Estimating the term…
Abstract
A method for detecting and controlling the position of a valve actuator is provided. The method includes applying a plurality of signals of different duration and/or magnitude to the valve actuator and measuring a signal from the valve actuator. This signal from the valve actuator is indicative of valve movement for each of the plurality of applied signals. The method further includes adjusting an injection signal to the valve actuator based at least from the measured signals from the valve actuator. This disclosure also applies this method to a solenoid actuator of a fuel injector.
Claims36
A method for adjusting a signal delivered to a valve actuator of a fuel injector, comprising:
- applying a plurality of signals of different duration or magnitude to the valve actuator;
- measuring a signal from the valve actuator indicative of a valve movement for each of the plurality of applied signals;
- and
- adjusting an injection signal to the valve actuator based at least in part on the measured signals from the valve actuator.
A method for adjusting a signal delivered to a valve actuator of a fuel injector, comprising:
- applying a plurality of signals of different duration or magnitude to the valve actuator;
- measuring a signal from the valve actuator indicative of a valve movement for each of the plurality of applied signals;
- and
- adjusting a magnitude of an injection signal to the valve actuator based at least in part on the measured signals from the valve actuator.
A method for adjusting a signal delivered to a valve actuator of a fuel injector, comprising:
- applying a plurality of signals of different duration or magnitude to the valve actuator;
- measuring a signal from the valve actuator indicative of a valve movement for each of the plurality of applied signals;
- and
- adjusting a timing of an injection signal to the valve actuator based at least in part on the measured signals from the valve actuator.
A method for adjusting a signal delivered to a valve actuator of a fuel injector, comprising:
- periodically applying a plurality of signals of different duration or magnitude to the valve actuator;
- measuring a signal from the valve actuator indicative of a valve movement for each of the plurality of applied signals;
- determining a valve movement time from at least the durations or magnitudes of the plurality of applied signals and the measured signals from the valve actuator;
- determining at least one offset value by comparing the valve movement time to a reference profile;
- and
- adjusting the initiation or duration of an injection signal to the valve actuator based on the at least one offset value.
A computer readable medium, comprising:
- instructions for
- applying a plurality of signals of different duration or magnitude to a valve actuator of a fuel injector;
- measuring a signal from the valve actuator indicative of a valve movement for each of the plurality of applied signals;
- and
- adjusting an injection signal to the valve actuator based at least in part on the measured signals from the valve.
Dependencies are inferred from the claim text.