Valve position controller

Details Valve position controller Valve position controller

2006-12-05

2006-12-05

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

C123S403000

Reexamination Certificate

active

07143743

ABSTRACT:
The throttle position corresponding to the rotational angle of the throttle valve is calculated based on electric signals output from a rotor position detector constituted by three Hall ICs that detect the rotational position of a magnet rotor of a brushless DC motor. A valve position control quantity of the throttle valve is so calculated as to eliminate the difference between the thus calculated valve position and a target valve position. The motor current control quantity of the brushless DC motor is so determined as to eliminate the difference between the calculated valve position and the target valve position. Though the throttle position sensor is omitted, the electric signals output from the rotor position detector are used for calculating both the valve position control quantity and the motor current control quantity.

REFERENCES:
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patent: 5163400 (1992-11-01), Yoshioka et al.
patent: 6465974 (2002-10-01), Watanabe
patent: 2002/0043242 (2002-04-01), Ikeda et al.
patent: H06-94151 (1994-04-01), None

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