Combined power plant for motor vehicle - has specific fuel consumption, with drive from combustion engine and auxiliary unit, better than with combustion engine alone

摘要

The combined power plant comprises a combustion engine and an auxiliary drive unit. The design power of the auxiliary drive is selected so that the specific fuel consumption with drive from the combustion engine and auxiliary unit is better than during drive from the combustion engine alone. The design power is defined by the intersection point of the curve of the actual specific fuel consumption of the combustion engine and curve of the permissible fuel consumption. ADVANTAGE - Fuel consumption is reduced, partic. in low speed ranges.