Automatic cruise control system for a motor vehicle

Details Automatic cruise control system for a motor vehicle Automatic cruise control system for a motor vehicle

1986-09-11

1987-10-06

Braun, Leslie

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74860, 180179, 180177, B60K 4118, B60K 4106

Patent

active

046974784

ABSTRACT:
An automatic vehicle cruise speed control system having an electronic control unit for controlling the engine throttle valve in accordance with the vehicle speed to maintain the speed at a substantially constant value. In an operation on a slope, the transmission gear stages are shifted down to a lower stage when the actual vehicle speed is deviated from a desired speed by more than a predetermined value consecutively for a first time period and shifted up to a higher stage when the actual speed is recovered so that the speed deviation is smaller than the predetermined value for a second time period which is greater than the first time period.

REFERENCES:
patent: 4421192 (1983-12-01), Ito et al.
patent: 4451888 (1984-05-01), Kuno et al.
patent: 4463822 (1984-08-01), Tanigawa et al.
patent: 4506752 (1985-03-01), Hara et al.
patent: 4516652 (1985-05-01), Tanigawa et al.
patent: 4535864 (1985-08-01), Tanigawa et al.
patent: 4535865 (1985-08-01), Tanigawa et al.
patent: 4541052 (1985-09-01), McCulloch

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