METHOD FOR STABILISING ELECTROMECHANICAL-TRANSMISSION-ICE MINIMUM SPECIFIC FUEL RATE AND DEVICE TO THIS EFFECT Russian patent published in 2008 - IPC F02D17/04 F02D41/30 

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICE application in various machines incorporating an electromechanical transmission. The proposed method of stabilising the ICE minimum specific fuel rate by automatically adjusting the ICE operating conditions via a feedback circuit connected to the electromechanical transmission components consists in presetting the engine shaft rpm corresponding to the minimum specific fuel consumption, measuring the said shaft rpm variation at varying outer moment of resistance, comparing the resulted value with the preset one, amplifying the difference signal and feeding it to the AC generator excitation current control circuit input to make the aforesaid moment to comply with that developed by ICE. Note that at the same time, the electric power accumulator output voltage is measured and compared with two preset levels. Given any departure from the aforesaid preset levels, a signal is generated to cut off the ICE in case the voltage exceeds the preset level, or to cut in the ICE in case the measured voltage is lower than the preset one that allows operating the ICE in intermittent service.

EFFECT: stabilisation of minimum specific fuel rate and optimisation of ICE operating conditions at varying electromechanical transmission engine loads, simpler ICE design.

2 cl, 2 dwg