Back to results
US 7,802,544 B2Granted
Engine load estimating apparatus and engine load estimating method
AssigneeNissan Motor Co., Ltd.
InventorShinobu Kamada
Life of this patent
Estimating the term…
Abstract
An engine load estimating apparatus, including an actuator that changes a position of a top dead center of a piston of the engine, and a controller in communication with the actuator. The controller detects a drive output of the actuator when the actuator changes the position of the top dead center of the piston, and estimates the load of the engine based on the detected drive output of the actuator.
Claims12
An engine load estimating apparatus, comprising:
- an actuator that changes a position of a top dead center of a piston of the engine;
- and
- a controller in communication with the actuator;
- wherein the controller detects a drive output of the actuator when the actuator changes the position of the top dead center of the piston, and estimates the load of the engine based on the detected drive output of the actuator.
1 more element
An engine load estimating method, comprising:
- driving an actuator during operation of the engine to change a position of a top dead center of a piston;
- detecting a drive output of the actuator;
- detecting an operation state of the actuator;
- and
- estimating the engine load based on the detected drive output of the actuator and the operation state of the actuator.
2 more elements
An engine load estimating apparatus comprising:
- means for changing a position of a top dead center of a piston;
- means for controlling the means for changing a position of the piston;
- means for detecting a drive output of the means for changing a position of the piston;
- means for detecting an operation state of the means for changing a position of the piston;
- and
- means for estimating an engine load based on the detected drive output and the detected operation state.
3 more elements
Dependencies are inferred from the claim text.