Power transmission system and vehicle with same

Abstract

The invention discloses a power transmission system and a vehicle with the same. The power transmission system includes an engine, a first motor generator unit, a second motor generator dynamically coupled directly or selectively with the engine, a system power output part, a first mode conversion device through which at least one of the engine and the first motor generator unit is coupled or disconnected with the system power output part, and a second mode conversion device through which the engine and the first mode conversion device can be dynamically coupled or disconnected, wherein the engine and the first mode conversion device are coupled by power through the second mode conversion device so that the power from the engine can be output to the first mode conversion device after speedreduction by the second mode conversion device. In this way, the driving mode of the vehicle can be enriched and the vehicle can adapt to different road conditions.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, in particular to a power transmission system of a vehicle and a vehicle having 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, hybrid electric vehicles are driven by engines and / or electric motors and have multiple modes to improve transmission efficiency and fuel economy. [0003] However, among 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 fed (when the battery is low). The vehicle's power and passing capacity are insufficient. Moreover, in order to realize the parking power generation condition...

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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