Vehicle speed control system for motor vehicle having an automat

Details Vehicle speed control system for motor vehicle having an automat Vehicle speed control system for motor vehicle having an automat

1990-05-29

1992-02-18

Diehl, Dwight

Machine element or mechanism

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

Preselected indexed position

B60K 4106

Patent

active

050883518

ABSTRACT:
A vehicle speed control system comprising an automatic speed control system for controlling the vehicle velocity to a set velocity selected by an operator, and automatic transmission control system for controlling the speed stage of the automatic transmission of the vehicle in response to the deviation between the actual vehicle velocity and the set vehicle velocity of the automatic speed control means. The automatic transmission control system comprises two operating modes including a first mode when the automatic speed control system is controlling the vehicle velocity, and a second mode when the automatic speed control system is not controlling the vehicle velocity, and the automatic transmission control system prohibits the shift of the speed stage to a fixed speed stage when the automatic speed control system is controlling the vehicle velocity. The automatic speed control system does not detect a shift of the speed stage when the automatic speed control system is controlling the throttle valve during shifting of the speed stage. The automatic speed control system controls a throttle valve in response to an abnormal state of the transmission.

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