Hybrid drive system

Abstract

If the planetary gear for power distribution and the speed change device are arranged in the middle part in the axial direction, the shaft bearing accuracy of the longer of the input shaft and the output shaft cannot be obtained. A bearing (80) is attached to the inner peripheral surface of the partition (C) between the planetary gear (21) for dividing the power distribution and the transmission (22) to support the front end of the output shaft (12). Bearings (81) are interposed on the same plane (II-II) part of the rear wall (E) supporting the rear end of the rotor (29) of the second electric motor (23) as the mounting surface of the bearing (s) to support the second motor (23). The rear end of the output shaft (12). Thereby, the output shaft (12) is supported by the bearings (80, 81) at the partition wall (C) and the rear wall (E) by the support structure at both ends.

Description

technical field [0001] The present invention relates to a hybrid drive device mounted on an automobile and an automobile equipped with the device, and more particularly to a hybrid drive device suitable for FR vehicles in which an input shaft and an output shaft are arranged on a rotation center line. Background technique [0002] In the past, as a hybrid drive device, a so-called mechanical distribution type (separate type or dual motor type) device is known. This device uses a planetary gear, and each element is connected to the engine output shaft and transmitted to the control generator. (the first electric motor) and the output part of the wheel. In addition, the above-mentioned output part is connected to the driving (auxiliary) motor (second electric motor), and by controlling the above-mentioned generator, the engine output is automatically transferred from the above-mentioned planetary gear to the output part. Step speed change, and then the power of the output part...

AI Technical Summary

Problems solved by technology

[0010] Therefore, for the input shaft or output shaft supported via the other shaft, the clearances and tolerances of each of them accumulate, and it is difficult to obtain sufficient bearing accuracy.

In addition, since the bearing is supported at a position away from the supporting portion of the housing member in the axial direction, sufficient support rigidity cannot be obtained, and the performance of the bearing member at this position cannot be fully exerted.

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