Driving apparatus of vehicle

Abstract

A driving apparatus of a vehicle includes an engine driven using energy obtained by combustion of fuel, and a driving motor directly connected to a crankshaft of the engine. The driving motor includes a rotor having the same rotation shaft as that of the crankshaft, and a stator coupled to the engine to be housed inside of the rotor to rotate the rotor. Therefore, fuel consumption can be improved and a structural design of an engine periphery of a hybrid vehicle can be diversified.

Description

technical field [0001] The present invention relates to a driving device of an automobile, and more particularly, to a driving device of an automobile in which an electric motor of an auxiliary engine is directly connected to an engine shaft. Background technique [0002] Generally, in a hybrid vehicle, the idle stop and go (ISG, IdleStopandGo) function repeatedly performs the action of turning off (OFF) or turning on (ON) the engine to start, thereby improving the fuel economy of the car. Cars equipped with idling stop and start function can improve the fuel economy of the car by 5 to 15%. [0003] Typically, cars with idle stop and start utilize an integrated starter / generator (ISG) motor that transmits power to the flywheel to not only perform the initial cranking of the engine, but also transition from idle stop (IdleStop) to idle go (IdleGo). [0004] To initially start the engine or to restart the engine based on transition from idle stop to idle start, the integrated...

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Problems solved by technology

[0009] However, if Figure 1 to Figure 3 As shown, the belt-driven integrated starter / generator integrated motor 10 based on the prior art is not only difficult to adjust the torque power value, and although there is a solution to increase the volume of the belt-driven integrated starter / generator integrated motor 10 in order to generate high torque, But in this case, there are the following disadvantages, that is, due to frequent damage to the surrounding parts of the engine 1, it is difficult to adopt a design that increases the volume of the belt-driven integrated starter / power generation integrated motor 10, and because the above-mentioned belt-driven integrated The starter / power generation integrated motor 10 adopts a structure that transmits power through the driving belt 7, so it is necessary to design the above-mentioned flywheel 5 and the motor pulley 20 in a manner that has a prescribed pulley ratio (crankshaft pulley: motor pulley = 2.5:1), thereby also It needs to run at high speed, and, due to the power loss (Beltloss) of the drive belt 7, only 5% of the car's fuel economy effect can be obtained according to the new European driving cycle (NEDC) standard

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