Throttle control apparatus and method for throttle control
First Claim
1. A throttle control apparatus having a fluid passage connecting with a combustion chamber of an internal combustion engine, the throttle control apparatus comprising:
- a valve for communicating and blocking the fluid passage;
a motor for generating driving force to rotate the valve in at least one of an open rotative direction and a close rotative direction;
a plurality of gears for transmitting the driving force of the motor to the valve;
a biasing unit for generating biasing force to bias the valve in the close rotative direction; and
a control unit for supplying electricity to the motor to generate the driving force,wherein when the control unit terminates electricity supply to the motor, the valve is biased to a full close position by being applied with the biasing force of the biasing unit, andwhen the control unit performs a full close control to manipulate the valve toward the full close position, the control unit continues electricity supply to the motor to stop the valve at a full close control point, which is set in advance of the full close position.
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Accused Products
Abstract
A throttle control apparatus includes a valve. A motor is provided for generating driving force to rotate the valve. Gears transmit the driving force to the valve. A biasing unit generates biasing force to bias the valve in a close rotative direction. A control unit is provided for supplying electricity to the motor to generate the driving force. When the control unit terminates electricity supply to the motor, the valve is biased to a full close position by the biasing force. When the control unit performs a full close control to manipulate the valve toward the full close position, the control unit continues electricity supply to the motor to stop the valve at a full close control point, which is set in advance of the full close position.
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Citations
21 Claims
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1. A throttle control apparatus having a fluid passage connecting with a combustion chamber of an internal combustion engine, the throttle control apparatus comprising:
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a valve for communicating and blocking the fluid passage; a motor for generating driving force to rotate the valve in at least one of an open rotative direction and a close rotative direction; a plurality of gears for transmitting the driving force of the motor to the valve; a biasing unit for generating biasing force to bias the valve in the close rotative direction; and a control unit for supplying electricity to the motor to generate the driving force, wherein when the control unit terminates electricity supply to the motor, the valve is biased to a full close position by being applied with the biasing force of the biasing unit, and when the control unit performs a full close control to manipulate the valve toward the full close position, the control unit continues electricity supply to the motor to stop the valve at a full close control point, which is set in advance of the full close position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A throttle control apparatus having a fluid passage connecting with a combustion chamber of an internal combustion engine, the throttle control apparatus comprising:
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a valve for communicating and blocking the fluid passage; a motor for generating driving force to rotate the valve in at least one of an open rotative direction and a close rotative direction; a plurality of gears for transmitting the driving force of the motor to the valve; a biasing unit for generating biasing force to bias the valve in at least one of the open rotative direction and the close rotative direction; and a control unit for supplying electricity to the motor to generate the driving force; wherein when the control unit terminates electricity supply to the motor, the valve is biased to a full close position by being applied with the biasing force of the biasing unit, and when the valve is in a predetermined range in the vicinity of the full close position, the control unit is adapted to controlling electricity supplied to the motor such that the valve repeats movement to pass through the full close position. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for throttle control, the method comprising:
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supplying electricity to a motor for generating driving force transmitted to a valve via a plurality of gears, the valve being biased toward a full close position by applying biasing force in a close rotative direction; setting a full close control point in advance of the full close position with respect to the close rotative direction; and continuing the supplying of electricity to the motor to stop the valve at the full close control point when the valve is manipulated toward the full close position.
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21. A method for throttle control, the method comprising:
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supplying electricity to a motor for generating driving force to rotate a valve, which is biased in at least one of the open rotative direction and the close rotative direction toward a full close position; and controlling the electricity supplied to the motor such that the valve repeats movement to pass through the full close position when the valve is in a predetermined range in the vicinity of the full close position.
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Specification