System and method for automatically controlling vehicle speed to

Details System and method for automatically controlling vehicle speed to System and method for automatically controlling vehicle speed to

1988-10-31

1990-04-03

Chin, Gary

Boots, shoes, and leggings

180179, 123352, B60K 3100

Patent

active

049145967

ABSTRACT:
A system and method for automatically controlling a vehicle speed to a desired cruise speed are disclosed in which whether after any one of command and release signals is outputted from the corresponding set/cruise, acceleration, resume, brake, clutch, and cancel switches, a control unit outputs a corresponding receipt signal via a corresponding output port is determined, whether the contents of the control command signals presently outputting through the respective control valves are equal to inverted levels at the respective control valve is determined, and a power supply to control valves for adjusting an operating variable of an engine driving force adjusting mechanism and the control unit is interrupted when at least one of the results of determinations indicates a negative result. In addition, when the control unit outputs the control command signals to the control valves to increase the vehicle speed, a subroutine of monitoring a cruise speed control enable state from the vehicle speed, command switches, release switches, and flag indicating the cruise control state in the control unit is executed.

REFERENCES:
patent: 4120373 (1978-10-01), Fleischer
patent: 4254844 (1981-03-01), Collonia
patent: 4394739 (1983-07-01), Suzuki et al.
patent: 4539642 (1985-09-01), Mizuno et al.

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