Power transmission system and vehicle with power transmission system

Abstract

The invention discloses a power transmission system and a vehicle. The power transmission system comprises a system power output part, a power source, a variable speed unit, a first motor generator unit and a mode conversion device, wherein the power source and the system power output part are in selective power coupling connection; the variable speed unit is selectively connected with the power source and connected with the system power output part; the first motor generator unit comprises a first motor generator and a unit coupling part, the unit coupling part is connected with the system power output part, and the first motor generator is selectively connected with the unit coupling part; and the mode conversion device is used for selectively connecting the variable speed unit with theunit coupling part and is in power coupling connection with the variable speed unit and the unit coupling part, so that power from the power source sequentially passes through the variable speed unitand the mode conversion device to be secondarily decelerated and then is output to the unit coupling part. Therefore, drive modes of the vehicle can be enriched, and the vehicle can adapt to differentroad conditions.

Description

technical field [0001] The present invention relates to the technical field of vehicles, in particular to a power transmission system of a vehicle and a vehicle with the power transmission system. Background technique [0002] With the continuous consumption of energy, the development and utilization of new energy vehicles has gradually become a trend. As one of the new energy vehicles, a hybrid vehicle is driven by an engine and / or an electric motor, and has multiple modes, which can improve transmission efficiency and fuel economy. [0003] However, in the related technologies known to the inventor, some hybrid electric vehicles have few drive modes and low drive transmission efficiency, which cannot meet the requirements of the vehicle to adapt to various road conditions, especially after the hybrid electric vehicle is powered (when the battery power is insufficient). The power and passing capacity of the whole vehicle are insufficient. Moreover, in order to realize the...

AI Technical Summary

Problems solved by technology

[0003] However, in the relevant technologies known to the inventor, some hybrid electric vehicles have few driving modes and low drive transmission efficiency, which cannot meet the requirements of the vehicle to adapt to various road conditions, especially after the hybrid electric vehicle is fed (when the battery power is insufficient). Insufficient vehicle power and passing capacity

Moreover, in order to realize the parking power generation condition, it is necessary to additionally increase the transmission mechanism, which has low integration and low power generation efficiency

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