System and method for calibrating a valve lift sensor and evaluating a valve lift sensor and a hydraulic valve actuator
AssigneeGM Global Technology Operations LLC
InventorRonald J. Pierik
Life of this patent
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Abstract
A system according to the principles of the present disclosure includes a valve control module and a fault detection module. The valve control module controls a valve actuator to actuate a valve of an engine from a first lift position to a second lift position that is different from the first lift position. The valve includes at least one of an intake valve and an exhaust valve. The fault detection module detects a fault in at least one of a valve lift sensor and the valve actuator based on input received from the valve lift sensor when the valve is adjusted to the first lift position and when the valve is adjusted to the second lift position.
Claims22
A system comprising:
- a valve control module that controls a valve actuator to actuate a valve of an engine from a first lift position to a second lift position that is different from the first lift position, wherein the valve includes at least one of an intake valve and an exhaust valve;
- and
- a fault detection module that detects a fault in at least one of a valve lift sensor and the valve actuator based on input received from the valve lift sensor when the valve is adjusted to the first lift position and when the valve is adjusted to the second lift position.
A method comprising:
- controlling a valve actuator to actuate a valve of an engine from a first lift position to a second lift position that is different from the first lift position, wherein the valve includes at least one of an intake valve and an exhaust valve;
- and
- detecting a fault in at least one of a valve lift sensor and the valve actuator based on input received from the valve lift sensor when the valve is adjusted to the first lift position and when the valve is adjusted to the second lift position.
Dependencies are inferred from the claim text.