Automotive vehicle speed control device based on a preselected speed
AssigneesFujitsu Ten Limited, Toyota Jidosha Kabushiki Kaisha
InventorsKou Tanigawa, Jiro Masuda, Kazumasa Nakamura, Kazuhiko Hayashi
Life of this patent
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Abstract
A device for controlling the speed of an automotive vehicle based on a preselected vehicle speed, including a vehicle speed detector, an actual speed setting switch, a vehicle speed selection unit, a selected speed presetting switch, and an electronic control unit. The electronic control unit receives the signals from the vehicle speed detector, the actual speed setting switch, the vehicle speed selection unit, and the selected speed presetting switch and generates a signal for control of the output of the vehicle engine.
Claims5
A device for controlling the speed of an automotive vehicle hased on a selected vehicle speed, said device comprising:
- a vehicle speed detector for detecting the actual vehicle speed of said vehicle and generating a signal representative of said actual vehicle speed;
- an actual speed setting switch for enabling speed control based on a desired actual vehicle speed;
- adjustable speed selection means for generating a signal in accordance with a preselected vehicle speed from within a predetermined range of speeds;
- a selected speed presetting switch for enabling speed control based on said preselected vehicle speed;
- a pneumatic actuator for changing the opening degree of a throttle valve;
- control means responsive to signals from said vehicle speed detector, said actual speed setting switch, said adjustable speed selection means and said selected speed presetting switch, for generating a signal for controlling said pneumatic actuator by comparing said detected actual vehicle speed to either said preselected vehicle speed or said desired actual vehicle speed, wherein vehicle speed may be selectively controlled in accordance with the detected actual vehicle speed when said actual speed setting switch is actuated and in accordance with said preselected vehicle speed when said selected speed presetting switch is actuated.
Dependencies are inferred from the claim text.