METHOD AND SYSTEM FOR AUTOMATIC CHANGEOVER OF FREE TRAVEL MODE OF TRANSPORT VEHICLE Russian patent published in 2009 - IPC B60W10/00 

FIELD: transportation.

SUBSTANCE: invention is related to method and system of automatic limitation of transport vehicle speed in mode of free travel. Method for automatic switchover of free travel mode of transport vehicle having facility for speed reduction, engine (1) for wheels drive through multi-stage automatic transmission gear (9), gas pedal (48) for control of engine torque and control unit (45). After actuation of free travel function and in case inlet signal is available that indicates that limit speed specified for transport vehicle is exceeded, control unit (45) automatically disconnects free travel function and brakes the transport vehicle with the help of speed reduction facility. Whenever inlet signal is available that indicates that transport vehicle speed reduced close to specified limit speed of transport vehicle, control unit (45) repeatedly actuates free travel function. In one of versions of implementation future motion of transport vehicle is modeled in order to optimise free travel function from the point of view of lower fuel consumption and/or higher comfort of control.

EFFECT: makes it possible to reduce fuel flow and increase driving comfort.

9 cl, 3 dwg