Drive mechanism for a motor vehicle
AssigneeRobert Bosch GmbH
InventorsFerdinand Grob, Gerhard Koelle, Peter Ahner, Klaus Harms, Manfred Ackermann
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AssigneeRobert Bosch GmbH
InventorsFerdinand Grob, Gerhard Koelle, Peter Ahner, Klaus Harms, Manfred Ackermann
Estimating the term…
The invention relates to a drive assembly of a motor vehicle, having a internal combustion engine and an electrical machine coupled or capable of being coupled to a crankshaft of the engine, wherein the electrical machine can be switched to motor and generator modes, and having an electronic control unit for controlling direct injection and ignition of the engine. It is provided that at the start of the engine (12) the crankshaft (16) can be put in a predeterminable starting position via the electrical machine (22) switched for motor operation, and upon attaining the starting position of the crankshaft (16), the ignition of the fuel injected into a starting cylinder (14) is effected, and via the electrical machine (22), a torque can be exerted on the crankshaft (16) during the entire starting operation.
A drive assembly of a motor vehicle, having a multicylinder internal combustion engine and an electrical machine capable of driving a crankshaft of the engine, wherein the electrical machine can be switched to motor and generator modes, and having an electronic control unit for controlling direct injection and ignition of the engine, wherein at the start of the engine the crankshaft can be put in a predeterminable starting position via the electrical machine switched for motor operation, and upon attaining the starting position of the crankshaft, fuel is injected into a starting cylinder and ignition is effected, characterized in that the starting cylinder is the cylinder, whose piston can be brought into the starting position over the shortest crankshaft rotation path, and a torque is exerted on the crankshaft by the electrical machine during the entire starting operation until the engine reaches running speed.
Dependencies are inferred from the claim text.