Hybrid drive device

Abstract

A cone ring CVT is applied in the disclosed hybrid drive device, and a compact arrangement is used for the device overall. An input-side friction gear (22) is disposed at a first shaft (I) that is coaxial with an engine output shaft, an output-side friction gear (23) is disposed at a second shaft (II), and an electric motor (2) is disposed at a third shaft (III) that is parallel to the first shaft and the second shaft. The electric motor (2) and the cone ring CVT (3) are disposed in a manner so as to partially overlap in the axial direction. The third shaft (III) is disposed above the second shaft (II) and on the same side as the first shaft (I) with respect to a vertical line (v-v) that passes through said second shaft.

Description

technical field [0001] The present invention relates to a hybrid drive device capable of driving wheels using an engine and an electric motor, and more specifically, relates to a hybrid drive device in which an electric motor and a conical friction ring type continuously variable transmission (cone ring type CVT) are integrated . Background technique [0002] Conventionally, among hybrid drive devices that drive wheels using an engine and an electric motor, a hybrid drive device that combines a single electric motor and a continuously variable transmission is known. Generally, as the continuously variable transmission device for the hybrid drive device, a belt-type continuously variable transmission device is used. The belt-type continuously variable transmission device consists of a pair of pulleys and a metal belt (or chain) wound around these pulleys. ) form, and by changing the effective diameter of the pulley to carry out infinitely variable speed. [0003] On the oth...

AI Technical Summary

Problems solved by technology

Although it is conceivable to apply the above-mentioned cone-ring type CVT to a hybrid drive device, the conical-shaped friction wheel of this cone-ring type CVT is formed in an axially long structure, and the input side friction wheel is arranged together with the electric motor. On the first shaft which is coaxial with the output shaft of the above-mentioned engine, the first shaft will become longer and not suitable for the vehicle

In addition, the above-mentioned Patent Document 2 also describes an embodiment in which the electric motor is arranged on a shaft other than the first shaft. However, in either case, the electric motor is arranged at a position that does not overlap with the conical ring type CVT in the axial direction. A dedicated axial space is required for the electric motor

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