Apparatus for running a car at constant speed

Details Apparatus for running a car at constant speed Apparatus for running a car at constant speed

1989-05-31

1991-06-18

Kashnikow, Andres

Motor vehicles

With means responsive to speed of vehicle for maintaining...

Including electrically actuated servomechanism

180170, 36442604, B60K 3104

Patent

active

050242849

ABSTRACT:
The present invention relates to an apparatus for running a car at constant speed, the apparatus controlling the car to run at a desired speed, wherein by a control circuit (21), both a car-speed deviation and an acceleration are taken as variables, and a pulse-width of pulse signals having a predetermined period is computed from a function for defining pulse-width, and the above-mentioned pulse is given to an actuator (12) for adjusting opening of a throttle valve (13), thereby quickening to settle down to a set car-speed, to enable to stably run at constant speed. Moreover, resetting device (9), (220), second constant-speed-running canceling device (11), (219) which cancel a state of constant-speed-running only by operation of a canceling switch (8), (28), and checking device (10) for checking memory data are provided, thereby improving safety and reliability of control.

REFERENCES:
patent: 4389990 (1983-06-01), Murray
patent: 4394739 (1983-07-01), Suzuki et al.
patent: 4434469 (1984-02-01), Suzuki et al.
patent: 4467428 (1984-08-01), Caldwell
patent: 4522280 (1985-06-01), Blaney
patent: 4835696 (1989-05-01), Suzuki et al.

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