Patent ID: 6887180
Filing Date: 2005-05-03
Classification: B60K,B60L,B60W,B60Y,F02N,F16H,Y02T,Y10S,Y10T

Abstract:
1. A power train for moving a vehicle during different stages of operation, comprising: at least one internal combustion engine with a crankshaft; at least one electrical machine connectable with said engine and arranged to function as a motor and as a generator; and at least one countershaft transmission interposed between said engine and at least one wheel of the vehicle and being shiftable into a plurality of gears in dependency upon the operating conditions of the vehicle, said conditions including: a traction condition involving propulsion of the vehicle by at least one of said engine and said machine, a coasting condition involving a deceleration of the vehicle which entails a conversion of kinetic energy developing as a result of deceleration of the vehicle into at least one of electrical energy and rotational energy, wherein said electrical energy is stored in at least one electrical storage facility and said rotational energy is stored in at least one rotatory mass, a cold starting condition involving a starting of cold engine by said machine, and a warm starting condition, wherein the engine, while still hot due to a previous operation, is restarted by one of said machine and said rotatory mass, which for said restarting is rotationally coupled to the crankshaft, in order to use said stored rotational energy for the restarting, wherein said transmission has a rotary input shaft, said rotatory mass including a fly-wheel connectable to and disconnectable from said crankshaft and said rotary input shaft.