Device for motor vehicle for fuel saving, comprises combination of freewheel in drive chain that includes load control, where traveling speed is approached by regulating reference value of traveling speed with optimal efficiency

摘要

The device comprises a combination of freewheel in drive chain that includes load control. A traveling speed is approached by regulating a reference value of the traveling speed with an optimal efficiency. The reference value control has a relative variable and alternative hysteresis adjusted by a driver. A driving cycle is resulted by the device. The driving cycle includes an acceleration phase and a landing roll phase, by which a motor is decoupled from the drive chain.