Automobile speed control method and system

Details Automobile speed control method and system Automobile speed control method and system

1977-09-27

1980-02-26

Wolff, John H.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

180179, B60K 3100

Patent

active

041900260

ABSTRACT:
An automobile speed control for maintaining actual road speed at a preselected driving speed. To control throttle position so as to maintain the actual road speed at the preselected speed, a first error signal is obtained from a comparator. The first error signal is, for the purpose of stabilizing the actual road speed, compared with a negative feedback signal to generate the final throttle position control signal. The negative feedback signal is obtained from an intake air flow rate detector to prevent increasing the force required for operating the throttle valve control mechanism and to facilitate installation of the speed control system.

REFERENCES:
patent: 3381771 (1968-05-01), Granger
patent: 3752252 (1973-08-01), Sakakibara
patent: 3766367 (1973-10-01), Sumiyoshi
patent: 3921751 (1975-11-01), Sakakibara
patent: 4041911 (1977-08-01), Steele
patent: 4056157 (1977-11-01), Kawata

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