Single-disk clutch dual-motor hybrid power assembly applicable to new energy automobile

Abstract

The invention discloses a single-disc clutch dual-motor hybrid power assembly suitable for new energy vehicles. The engine, elastic damping connector, first motor, single-disc clutch and second motor are sequentially connected through coaxial; the second motor outputs The shaft is connected to the drive axle assembly; the energy storage power supply is electrically connected to the first motor controller, the second motor controller, and the vehicle controller; the first motor controller is also connected to the vehicle controller, the first motor The second motor controller is also electrically connected with the vehicle controller and the second motor respectively. The single disc clutch of the present invention has no axial force on the motor and the engine, fast clutching, long-term sliding and friction combination, small loss, small axial size, large transmission torque power, overload protection, adjustable speed ratio, and low cost. Low. The energy output can be freely switched between the engine and the energy storage power supply according to the working conditions, and the recycling can be realized, so that the energy management of the whole machine can be matched more reasonably, and the performance of energy saving and environmental protection is better.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a single-disc clutch dual-motor hybrid power assembly suitable for new energy vehicles. Background technique [0002] With the continuous development of society and vehicle engineering technology, the number of vehicles is increasing. The energy consumption during the use of vehicles and the pollution of exhaust emissions to the environment have been highly valued by all walks of life. More and more countries and regions have introduced incentive policies for the development of new energy vehicles, especially the use of powertrains for large commercial vehicles plays an important role in actively promoting the development of new energy vehicles and related supporting industries and technologies. Currently, the technical routes adopted in the market are mainly hybrid technology and pure electric technology. Whether it is hybrid technology or pure electric technology, ...

AI Technical Summary

Problems solved by technology

Since the traditional hydraulic automatic transmission has a continuously working hydraulic pump, which consumes a lot of energy and cannot be dragged in reverse, it is no longer suitable for hybrid or pure electric vehicles

[0003] At present, three kinds of automatic clutches are mainly used in hybrid powertrains. One is the automatic clutch that separates or combines the dry clutch by pushing the shift fork release bearing through the cylinder; Technical problems such as short bearing life, complex control system, large structure volume, high machining accuracy, high failure probability, short life, and high maintenance cost

The second is an automatic clutch that realizes clutching by pushing multiple wet friction pairs through a hydraulic cylinder; however, there are technical problems such as large discharge resistance, low efficiency, complex hydraulic control components, and high maintenance costs with multiple wet friction pairs.

However, AMT has technical problems such as poor smoothness of shifting, inability to realize powerless intermittent shifting, long shifting time, complex control system, large structure volume, high machining accuracy, low reliability, and inability to realize semi-linkage drive.

[0004] Therefore, the above three types of clutches do not meet the overall performance matching requirements of the hybrid powertrain, resulting in low power transmission efficiency of the hybrid powertrain, unreasonable energy management and matching, and low vehicle performance.

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