Control of supercharger
AssigneeNissan Motor Co., Ltd.
InventorTakashi Shirakawa
Life of this patent
Estimating the term…
Abstract
An engine is provided with a turbocharger which varies a supercharging pressure by an actuator. A controller calculates a first compensation value of a response delay from operation of the actuator to variation of an intake air amount of the engine, and a second compensation value of an operating delay of the actuator with respect to an input of a command signal to the actuator. The command signal to the actuator is calculated by performing a processing based on the first compensation and the second compensation value on an operational target value that was determined based on the running state of the engine, and the response of intake air amount control is thereby enhanced.
Claims14
A control device for a turbocharger of an engine, the turbocharger comprising an actuator which adjusts an intake air amount of the engine according to a command signal, the control device comprising:
- a sensor which detects a running state of the engine;
- and
- a controller functioning to:
- set a target intake air amount of the engine based on the running state;
- calculate an operational target value of the actuator based on the target intake air amount;
- calculate a first compensation value of a response delay from operation of the actuator to variation of the intake air amount;
- calculate a second compensation value of an operating delay of the actuator with respect to an input of the command signal to the actuator;
- calculate the command signal by performing a processing based on the first compensation value and the second compensation value on the operational target value;
- and
- output the command signal to the actuator.
A control device for a turbocharger of an engine, the turbocharger comprising an actuator which adjusts an intake air amount of the engine according to a command signal, the control device comprising:
- means for detecting a running state of the engine;
- means for setting a target intake air amount of the engine based on the running state;
- means for calculating an operational target value of the actuator based on the target intake air amount;
- means for calculating a first compensation value of a response delay from operation of the actuator to variation of the intake air amount;
- means for calculating a second compensation value of an operating delay of the actuator with respect to an input of the command signal to the actuator;
- means for calculating the command signal by performing a processing based on the first compensation value and the second compensation value on the operational target value;
- and
- means for outputting the command signal to the actuator.
A control method of a turbocharger of an engine, the turbocharger comprising an actuator which adjusts an intake air amount of the engine according to a command signal, the control method comprising:
- detecting a running state of the engine;
- setting a target intake air amount of the engine based on the running state;
- calculating an operational target value of the actuator based on the target intake air amount;
- calculating a first compensation value of a response delay from operation of the actuator to variation of the intake air amount;
- calculating a second compensation value of an operating delay of the actuator with respect to an input of the command signal to the actuator;
- calculating the command signal by performing a processing based on the first compensation value and the second compensation value on the operational target value;
- and
- outputting the command signal to the actuator.
Dependencies are inferred from the claim text.