Control system for throttle valve actuating device

A control system for a throttle valve actuating device including a throttle valve of an internal combustion engine, actuating means for actuating said throttle valve, first energizing means for energizing said throttle valve in a closing direction, and second energizing means for energizing said throttle valve in an opening direction,

• said throttle valve actuating device maintaining an opening of said throttle valve at a default opening by said first and second energizing means when said throttle valve is not actuated by said actuating means,
• said control system comprising:
• learning value calculating means for calculating a learning value of the default opening when said actuating means is actuating said throttle valve;
• and
• control means for controlling said throttle valve actuating device using the learning value so that the throttle valve opening coincides with a target opening.

A control method for controlling a throttle valve actuating device including a throttle valve of an internal combustion engine and an actuator for actuating said throttle valve, said control method comprising the steps of:

• a) identifying at least one model parameter of a controlled object model which is obtained by modeling said throttle valve actuating device;
• b) calculating a learning value of a throttle valve opening at which an actuating characteristic of said throttle valve changes, according to the at least one model parameter;
• and
• c) controlling said throttle valve actuating device using the learning value so that an opening of said throttle valve coincides with a target opening.

A control method for controlling a throttle valve actuating device including a throttle valve of an internal combustion engine, an actuator for actuating said throttle valve, a first energizing element for energizing said throttle valve in a closing direction, and a second energizing element for energizing said throttle valve in an opening direction,

• said throttle valve actuating device maintaining an opening of said throttle valve at a default opening by said first and second energizing elements when said throttle valve is not actuated by said actuator,
• said control method comprising the steps of:
• a) calculating a learning value of the default opening when said actuator is actuating said throttle valve;
• and
• b) controlling said throttle valve actuating device using the learning value so that the throttle valve opening coincides with a target opening.

A control system for a throttle valve actuating device including a throttle valve of an internal combustion engine and an actuator for actuating said throttle valve, said control system comprising:

• an identifier for identifying at least one model parameter of a controlled object model which is obtained by modeling said throttle valve actuating device;
• a learning value calculating module for calculating a learning value of a throttle valve opening at which an actuating characteristic of said throttle valve changes, according to the at least one model parameter;
• and
• a control module for controlling said throttle valve actuating device using the learning value so that an opening of said throttle valve coincides with a target opening.

A control system for a throttle valve actuating device including a throttle valve of an internal combustion engine, an actuator for actuating said throttle valve, a first energizing element for energizing said throttle valve in a closing direction, and a second energizing element for energizing said throttle valve in an opening direction,

• said throttle valve actuating device maintaining an opening of said throttle valve at a default opening by said first and second energizing elements when said throttle valve is not actuated by said actuator,
• said control system comprising:
• a learning value calculating module for calculating a learning value of the default opening when said actuator is actuating said throttle valve;
• and
• a control module for controlling said throttle valve actuating device using the learning value so that the throttle valve opening coincides with a target opening.