Automatic speed controller for use of a vehicle
An automatic speed controller is described for use in a vehicle, which maintains an actual vehicle speed at a vehicle speed preset by an operator, comprising: an throttle means for controlling an amount of fuel supplied to an engine; an actuation means connected with the throttle means to actuate the throttle means, the actuation means including a first and a second valve means; and a control means for controlling the actuation means according to a difference between an actual vehicle speed and a preset vehicle speed and for adjusting the actual vehicle speed so that it approaches the preset vehicle speed. The control means includes a first valve actuating means for actuating the first valve and a second valve actuating means for actuating the second valve. The control means periodically outputs a first signal to the first valve actuating means and continuously outputting a second signal to the second valve actuating means. During regular operation of the control means the first valve actuating means receives the first signal, the first valve means being periodically actuated and the second valve actuating means receives the second signal, the second valve means being continuously actuated.
- Assignee:
- Toyota Jidosha Kabushiki Kaisha
- Patent Number(s):
- US 4629027
- OSTI ID:
- 6973870
- Country of Publication:
- United States
- Language:
- English
Similar Records
Automatic mechanical transmission control
Adjustable throttle connector for a vehicle speed control unit