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Motor-transmission integral transmission system for electric automobile

A transmission system and transmission technology, which is applied in the field of motor-transmission integrated transmission system for electric vehicles, can solve the problems of increased cost and large shifting impact, and achieve the effects of low production cost, small weight and small volume

Active Publication Date: 2015-02-04
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the AMT structure is adopted, a synchronizer is required, and the shifting impact is relatively large at this time
When using the DCT structure, since the gearbox has only two gears, the dual-clutch structure will increase the cost a lot.

Method used

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  • Motor-transmission integral transmission system for electric automobile
  • Motor-transmission integral transmission system for electric automobile
  • Motor-transmission integral transmission system for electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] Example: see figure 1 , the whole system is composed of two sets of subsystems connected in series, the first subsystem is a 2K-H planetary gear transmission system, and the overall structure is a single-row planetary layout, which are: motor 1 and motor output shaft I, front sun gear 2. The front planetary gear 3, the front planet carrier 4, and the front ring gear 5; the front sun gear 2 is installed on the motor output shaft I through a spline (the motor output shaft is also the axle of the front sun gear), and the sun gear The planetary gears 3 meshed with the wheels are supported on the front row planetary carrier 4 through bearings, and the front row ring gear 5 is fixed on the case and meshed with the front row planetary gears 3 .

[0020] The second subsystem is also a 2K-H planetary gear transmission system, which is a single-row planetary layout, which are: rear sun gear 6, rear planetary gear 7, rear planetary carrier H and rear ring gear 8; The sun gear 6 i...

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Abstract

The invention discloses a motor-transmission integral transmission system for an electric automobile and relates to a two-gear automatic gearbox planetary gear mechanism. The mechanism comprises two single-row 2K-H planetary gear transmission systems, a front-row gear ring is fixed in a front-row planetary gear transmission system, and motive power is transmitted from a front-row sun gear to a front-row planet carrier for outputting to complete a first-level deceleration. In a back-row planetary gear transmission system, a clutch C1 achieves combination and separation of a back-row sun gear and a back-row planet carrier, a brake B1 achieves fixation and separation of a back-row gear ring and a tank body, finally the motive power is output by the back-row planet carrier, and shifting of two gears can be completed through different combinations of working of the clutch and the brake. The motor-transmission integral transmission system is simple in mode, compact in structure, small in size and light in weight, and meets principles of automobile light weight.

Description

Technical field: [0001] The invention relates to a motor-transmission integrated transmission system for an electric vehicle. Background technique: [0002] In recent years, various types of vehicle motors represented by high-density permanent magnet motors in my country have made significant progress. In terms of motor design, the design concept of modern vehicle motor system is adopted to initially solve the limit design of multi-objective high-performance vehicle motors, combined with the technical problems of application control strategy system integration simulation, and the use of structural integration design technology, the motor and transmission are realized. Highly integrated design and application of machinery, electromagnetism and heat. The integration and integration trend of the electric drive system is more obvious. The development of mechatronics is from structural integration to control integration and system integration, and the electrification component ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/10H02K7/116
CPCY02T10/641Y02T10/64
Inventor 陈奇赵韩黄康赵玉才冯永恺冯关华陈戈沙发明王开来
Owner HEFEI UNIV OF TECH
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