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A multi-mode power coupling system for a single-motor electric vehicle

A technology of power coupling system and electric vehicle, which is applied to the arrangement of multiple prime movers and power devices of motor vehicles and general power devices, and can solve the problems of multiple power sources, increased system path energy conversion loss, and high cost. Achieve the effects of improving acceleration performance, reducing conversion efficiency loss, and solving low load efficiency

Active Publication Date: 2021-06-01
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, in the power split mode, the dual motors can simultaneously adjust the engine speed and torque, which greatly improves the working efficiency of the engine; many, high cost

Method used

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  • A multi-mode power coupling system for a single-motor electric vehicle
  • A multi-mode power coupling system for a single-motor electric vehicle
  • A multi-mode power coupling system for a single-motor electric vehicle

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Embodiment Construction

[0028] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0029] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention relates to a multi-mode power coupling system of a single-motor electric vehicle, belonging to the technical field of new energy vehicles. The system includes engine, first planetary gear mechanism, second planetary gear mechanism, brake, clutch, synchronizer, inverter, power battery, motor, motor power output gear shaft, transmission, power output gear shaft, final reducer and Differential assembly. The invention changes the coupling mode of the motor and the engine by controlling the engagement and separation of the clutch, the brake and the synchronizer, realizes the coupled drive of the motor and the engine speed, the coupled drive of the motor and the engine torque, the independent drive of the motor and the independent drive of the engine, and improves the The acceleration performance of the system solves the problem of low engine efficiency at low loads and reduces the loss of system path conversion efficiency.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicles and relates to a multi-mode power coupling system of a single-motor electric vehicle. Background technique [0002] With its advantages of low consumption and low pollution, new energy vehicles have become an important direction of automobile development. Among them, pure electric vehicles cannot be widely used due to their short mileage on a single charge, long charging time, and high vehicle manufacturing costs. Although hybrid electric vehicles are still mainly powered by fuel, compared with traditional fuel vehicles, the energy utilization rate has been significantly improved, and pollution emissions have been significantly reduced. Mainstream automakers have carried out research and development in hybrid electric vehicles. manufacture. [0003] At present, in the hybrid electric system, the hybrid electric system with dual motors and engines as the power source has problems such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/365B60K6/38B60K6/24B60K6/26
CPCB60K6/24B60K6/26B60K6/365B60K6/38B60K2006/381Y02T10/62
Inventor 胡建军梅博彭航彭桃
Owner CHONGQING UNIV