Powertrain and Vehicle

Abstract

The invention discloses a power system, and relates to the technical field of new energy vehicles; the power system comprises the following parts: a double-power source for providing input power to aspeed change unit; a mode conversion device used for selectively realizing power coupling between the power source and a gear; a clutch device used for controlling the power inputted into the speed change unit by one power source to be switched on and off, and synchronously and selectively coupling the gear with the power source; therefore, power is not interrupted, and any power mode can have double-power to provide output power. The invention further provides a vehicle with the highly integrated power system, so different working condition requirements can be met, and the power system has high economical efficiency.

Description

technical field [0001] The invention relates to a power system for a new energy vehicle system, in particular to a power system for a commercial vehicle, and provides a vehicle equipped with the power system. Background technique [0002] With the continuous advancement of new energy vehicle technology, more and more commercial vehicles have begun to use electric drives to solve energy consumption problems. As we all know, electric commercial vehicles are very complex due to their application scenarios, and a single technology from passenger vehicles cannot be directly applied. Therefore, the popularization speed of electric drive of commercial vehicles is relatively behind that of passenger cars. [0003] At present, in order to be able to cope with complex working conditions, various researches have been carried out on the new energy drive system in the prior art. Among them, the use of a single motor in the existing drive system cannot meet the requirements of the working...

AI Technical Summary

Problems solved by technology

[0003] At present, in order to be able to cope with complex working conditions, various researches have been carried out on the new energy drive system in the prior art. Among them, the use of a single motor in the existing drive system cannot meet the requirements of the working conditions. CN103072472A discloses a multi- Mode dual-motor drive system and its drive mode, it uses the clutch to connect the first input shaft and the second input shaft of the gearbox, through the combined control of the two motors, the dual-motor powerless switching is realized, but its disadvantage is that the variable speed The number of gear sets inside the box is large, and parts such as clutches and synchronizers are scattered, resulting in a larger overall volume and heavier weight of the gearbox, which increases the load of the vehicle

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