Drive assembly with electric machine and motor vehicle having such drive assembly

Abstract

The invention elates to an electric drive assembly for a multi-axle driven motor vehicle which comprises an internal combustion engine, a multi-step transmission with an output shaft for driving a rear axle, as well as an optionally drivable front axle. The drive assembly comprises an electric machine (6), a reduction gearing (7) drivingly connected to the electric machine (6), a driveshaft (9) drivingly connected to the reduction gearing (7) and drivingly connectable to a front propeller shaft (65) for driving the front axle, and a housing 5 in which the electric machine (6) and the reduction gearing (7) are arranged. The housing (5) comprises connecting means (16) for connecting the drive assembly (2) to the multi-step transmission. The electric drive assembly is designed such that, with the electric drive assembly mounted at the multi-step transmission (56), a rear propeller shaft (57) can be connected at least indirectly to the output shaft of the multi-step transmission for driving the rear axle. Furthermore, the invention relates to a motor vehicle with such a driveline assembly.

Description

technical field [0001] The invention relates to an electric drive assembly for a multi-axle drive motor vehicle comprising two drive sources, and to a motor vehicle having such an electric drive assembly. A drive concept with two drive sources is also referred to as a hybrid drive, and a motor vehicle equipped in this way is also referred to as a hybrid vehicle. An internal combustion engine is generally set as a first drive source, and an electric motor is set as a second drive source. The internal combustion engine and the electric machine can each be combined to drive the motor vehicle by themselves or when superimposed on each other. Background technique [0002] The advantage of a hybrid drive is that the internal combustion engine can be operated more frequently in the favorable efficiency range for a longer period of time. When the vehicle accelerates, the internal combustion engine and electric motor can operate in conjunction. During braking and cruising of the v...

AI Technical Summary

Problems solved by technology

[0007] Especially in the case of rear-axle-driven motor vehicles with a longitudinally arranged internal combustion engine, the integration of an electric machine for a hybrid drive is often complicated because of the limited installation space available

Additionally, an expensive redesign process may be required for the stationary components to which the hybrid drive must be attached, thus increasing the amount of variation and associated costs

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