Cruise control for motor vehicles
First Claim
1. Device for regulating the speed of a motor vehicle provided with a braking device, comprising a control (20) actuatable by the driver of the vehicle, with first means (22) for setting a command value for a speed, a sensor (16) for sensing the actual value of the speed and a processing unit (14) connected to the engine throttle and to the braking device (8,10), said command value and actual value being fed into and compared in said processing unit, which is disposed to send signals to an throttle and brake device depending on the difference between said values, said processing unit being disposed when driving downhill to allow a maximum speed, which lies above the command value set by of the first means, characterized in that the control (20) has a second means (23) for setting to a first position, in which the processing unit (14) controls both the throttle and the brake device (8,10) to keep the vehicle speed constant, a second position, in which the processing unit only controls the throttle to keep a minimum speed which is the set command value, and a third position, in which the processing unit only controls the braking device to limit the maximum speed in relation to the set command value.
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Accused Products
Abstract
Cruise control for regulating the speed of a motor vehicle with a processing unit (14) and a manually actuatable operating element (20), wherein a selected speed can be set. On the operating element there is a switch (23), wherein the driver can select if the selected speed is to be kept constant of if it is to constitute a minimum speed or a maximum speed. There is also a switch (24, 25), wherein a permitted overspeed above a selected maximum speed can be set, so that a higher speed can be allowed when driving downhill, for the purpose of saving energy.
26 Citations
6 Claims
- 1. Device for regulating the speed of a motor vehicle provided with a braking device, comprising a control (20) actuatable by the driver of the vehicle, with first means (22) for setting a command value for a speed, a sensor (16) for sensing the actual value of the speed and a processing unit (14) connected to the engine throttle and to the braking device (8,10), said command value and actual value being fed into and compared in said processing unit, which is disposed to send signals to an throttle and brake device depending on the difference between said values, said processing unit being disposed when driving downhill to allow a maximum speed, which lies above the command value set by of the first means, characterized in that the control (20) has a second means (23) for setting to a first position, in which the processing unit (14) controls both the throttle and the brake device (8,10) to keep the vehicle speed constant, a second position, in which the processing unit only controls the throttle to keep a minimum speed which is the set command value, and a third position, in which the processing unit only controls the braking device to limit the maximum speed in relation to the set command value.
Specification