Servo apparatus for an automatic speed control of vehicles

Details Servo apparatus for an automatic speed control of vehicles Servo apparatus for an automatic speed control of vehicles

1981-09-24

1983-06-28

Myhre, Charles J.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123361, 180178, 318599, F02D 1110

Patent

active

043899900

ABSTRACT:
A servo apparatus for automatic control of vehicle engine speed, in accordance with a speed error signal, has an electric motor connectable to open the engine throttle against a restoring force, and the motor torque is controlled by varying the pulse width of the motor drive current. The pulse width is controlled by the error signal through a feedback stabilized amplifier and in addition, motor back emf is sampled and used to control the pulse width during motor braking phases.

REFERENCES:
patent: 3436635 (1969-04-01), James et al.
patent: 3525017 (1970-08-01), Rosenberg et al.
patent: 3809034 (1974-05-01), Durichen
patent: 4098242 (1978-07-01), Anderson
patent: 4270502 (1981-06-01), Seilly
patent: 4300081 (1981-11-01), Van Landingham
patent: 4352404 (1982-10-01), Stier

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