Adaptive controller for a motor vehicle engine throttle operator

Details Adaptive controller for a motor vehicle engine throttle operator Adaptive controller for a motor vehicle engine throttle operator

1986-04-16

1987-08-04

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02P 800

Patent

active

046848665

ABSTRACT:
The phase winding energization frequency of a stepper motor throttle operator is adjusted in relation to a comparison between the actual neutral voltage crossing of back-EMF in the phase windings and a previously determined optimum point of crossing. The energization frequency is increased to increase motor speed when the actual crossing occurs prior to the optimum point, and decreased to decrease motor speed when the actual crossing occurs after the optimum point.

REFERENCES:
patent: 4027215 (1977-05-01), Knight et al.
patent: 4081736 (1978-03-01), Leenhouts et al.
patent: 4119901 (1978-10-01), Leenhouts
patent: 4220904 (1980-09-01), Leenhouts et al.
patent: 4347821 (1982-09-01), Saito
patent: 4480218 (1982-10-01), Hair

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