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Range extended double-motor electromechanical coupling system for vehicle and control method thereof

A dual-motor, extended-program technology, applied in the arrangement of multiple different prime movers of general power plants, motor vehicles, vehicle components, etc., can solve the problems of reduced efficiency and NVH performance, complex mechanical structure, and large layout size. Achieve the effect of reducing the cost of the vehicle, ensuring the power of the vehicle, and reducing the demand for battery pack capacity

Pending Publication Date: 2018-01-05
SHANGHAI AUTOMOBILE GEAR WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the domestic new energy vehicle drive systems are modified on the traditional automatic transmission, such as adding motors, electronic pumps, etc., which have problems such as high cost, large layout size, and reduced efficiency and NVH performance caused by complex mechanical structures.

Method used

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  • Range extended double-motor electromechanical coupling system for vehicle and control method thereof
  • Range extended double-motor electromechanical coupling system for vehicle and control method thereof
  • Range extended double-motor electromechanical coupling system for vehicle and control method thereof

Examples

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Effect test

Embodiment 1

[0034] Such as figure 1 , figure 1As shown, this embodiment includes: engine 1, clutch 2, hybrid input shaft 3, hybrid input gear 4, synchronizer 5, second drive motor 6, hybrid intermediate shaft assembly 7, hybrid output gear 8 , hybrid intermediate shaft gear 9, main reduction drive axle assembly 10, main reduction gear 11, differential assembly 12, pure electric intermediate shaft gear 13, pure electric output gear 14, pure electric intermediate shaft assembly 15, pure electric The electric input shaft gear 16 and the first drive motor 17, wherein: the engine 1 is connected with the hybrid input shaft 3 through the clutch 2, the synchronizer 5 is fixed on the hybrid input shaft 3 through a spline, and the hybrid input gear 4 is connected by a needle roller The bearing is empty sleeved on the hybrid input shaft 3, and the hybrid input gear 4 is welded with coupling teeth. The second drive motor 6 is connected to the other end of the hybrid input shaft 3 through a spline. ...

Embodiment 2

[0069] Such as image 3 As shown, since the whole vehicle is working, the first drive motor is always in working condition. In Embodiment 1, due to the fixed speed ratio of the transmission shaft system, it is impossible to take into account the high-efficiency performance range of the first drive motor, the maximum vehicle speed and the climbing performance of the vehicle. Therefore, in this embodiment, the power transmission mechanism of the first drive motor is replaced by a pure electric input gear assembly 22 for electric input second gear, a pure electric input gear assembly synchronizer 23, and a shaft gear 24 for pure electric input first gear. The input gear assembly 21 corresponds to adding a pure electric output second gear shaft gear 20 on the pure electric intermediate shaft assembly. When the vehicle is running at low speed, a large speed ratio is used to ensure high torque output. When the vehicle is running at a medium and high speed, a small speed ratio is us...

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Abstract

The invention provides a range extended double-motor electromechanical coupling system for a vehicle and a control method thereof. The range extended double-motor electromechanical coupling system forthe vehicle comprises a transmission part, a hybrid part, a pure electric power part, a vehicle controller and a vehicle condition sensor, wherein the hybrid part and the pure electric power part arerespectively connected with the transmission part; the hybrid part is connected with the transmission part through a hybrid intermediate shaft assembly; the pure electric power part is connected withthe transmission part through a pure electric intermediate shaft assembly; and the vehicle controller figures out an appropriate running mode and appropriate driving torque according to a real-time vehicle condition signal collected by the vehicle condition sensor and respectively transmits instructions to the transmission part, the hybrid part and the pure electric power part. The range extendeddouble-motor electromechanical coupling system for the vehicle has the advantages that multiple working modes are realized by using one parallel shaft type gearbox, the structure is compact, the mechanical transmission efficiency is high and the cost is low.

Description

technical field [0001] The invention relates to a technology in the field of electric vehicles, in particular to a range-extended dual-motor electromechanical coupling system for a vehicle and a control method thereof. Background technique [0002] Due to environmental and energy requirements, new energy vehicles, as an important means of transportation, are increasingly valued by countries all over the world. At present, most of the domestic new energy vehicle drive systems are modified on the traditional automatic transmission, such as adding motors, electronic pumps, etc., which have problems such as high cost, large layout size, and reduced efficiency and NVH performance caused by complex mechanical structures. Contents of the invention [0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes a range-extended dual-motor electromechanical coupling system for a vehicle and its control method. Through a set of parallel shaft gea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/445B60W20/10B60W20/20B60W20/40B60W10/06B60W10/08
CPCY02T10/62
Inventor 柴旭钱骏熊玉杰顾文喆刘伟
Owner SHANGHAI AUTOMOBILE GEAR WORKS
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