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A dual-motor coupling drive system for an electric vehicle

A coupling drive and electric vehicle technology, applied in the direction of electric vehicles, motors, electric components, etc., can solve the problems of few working modes, low load rate, and the unobvious economy of the No. 1 motor drive configuration, etc., to reduce the torque and power capacity, size reduction, and economical improvement

Inactive Publication Date: 2017-01-04
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that there are few working modes. When the vehicle is at low speed, it can only be driven by the first motor alone, which requires the torque capacity of the first motor to be large; The economy of type is not obvious

Method used

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  • A dual-motor coupling drive system for an electric vehicle
  • A dual-motor coupling drive system for an electric vehicle
  • A dual-motor coupling drive system for an electric vehicle

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0025] refer to figure 1, a dual-motor coupling drive system for an electric vehicle provided by the present invention consists of a main motor 1, an auxiliary motor 2, a gear transmission mechanism, a No. 1 clutch 5, a No. 2 clutch 6, a No. 3 transmission gear 7, a lock 10, and No. clutch 11, planetary gear mechanism, drive axle 14 and transmission shaft 15. The gear transmission mechanism is composed of No. 1 transmission gear 3 and No. 2 transmission gear 4. The planetary gear mechanism includes ring gear 8, sun gear 9, planet Wheel 12 and planet carrier 13. The main motor 1 and the auxiliary motor 2 are coaxially arranged on both sides of the system, the output shaft of the main motor 1 is connected to the gear shaft of the second transmission gear 4 through a flange, and the end flange of the second transmission gear 4 is connected to the second clutch 6 The inner hole of the driving disc of the second clutch 6 is connected by a spline with one end of the drive shaft 15,...

Embodiment 2

[0042] refer to figure 2, another scheme of a dual-motor coupling drive system for an electric vehicle provided by the present invention consists of a main motor 1, an auxiliary motor 2, a gear transmission mechanism, a No. 1 clutch 5, a No. 2 clutch 6, a No. 3 transmission gear 7, a lock The stopper 10, the third clutch 11, the planetary gear mechanism, the driving axle 14 and the transmission shaft 15 are composed. The gear transmission mechanism is composed of the No. 1 transmission gear 3 and the No. 2 transmission gear 4 with external meshing. The planetary gear mechanism includes the ring gear 8, Sun gear 9, planetary gear 12 and planet carrier 13. The main motor 1 and the auxiliary motor 2 are coaxially arranged on the same side of the system, and the auxiliary motor 2 is located outside the main motor 1; the rotor shaft of the main motor 1 is hollow, and the output shaft of the auxiliary motor 2 passes through the rotor of the main motor 1 Shaft inner hole, the rotor...

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Abstract

The invention discloses a power-driven automobile double-motor coupling drive system which solves the problems that working modes are less, the device is large in size and hard to arrange and the load rate of motors is low in the prior art. According to the power-driven automobile double-motor coupling drive system, a main motor and an auxiliary motor are coaxially arranged on the two sides of the system, the output shaft of the main motor is connected with a transmission gear II which is connected with a drive disc of a clutch II. A driven disc of the clutch II is connected with a sun wheel through a transmission shaft. The other end of the transmission shaft is connected with a driven disc of a clutch III. A drive disc of the clutch III is connected with the output shaft of the auxiliary motor. A transmission gear I is connected with a drive disc of a clutch I. A driven disc of the clutch I is connected with a transmission gear III which is externally meshed with a gear at one end of a gear ring. One end of a locking device is connected with a shell of a gearbox and the other end of the locking device is connected with the gear ring.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicle power assembly components, and in particular relates to a dual-motor coupling drive system for an electric vehicle. Background technique [0002] Since the high-efficiency zone of the electric vehicle drive motor driven by a single motor is fixed, and the motor operating point of the single-motor fixed-speed-ratio transmission cannot be adjusted, in order to meet the normal driving of the vehicle under various working conditions, it will result in a motor that matches the power requirements The load rate and efficiency of most working points are low. And when the motor fails, the vehicle cannot run normally. In view of the above-mentioned problems of traditional single-motor drive electric vehicles, the dual-motor coupling drive system is a good solution. Its advantage is that the operating point of the motor can be adjusted, and it can make full use of the respective high-efficiency a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K1/02B60K17/02B60K17/04H02K7/10
CPCY02T10/64
Inventor 初亮富子丞王军年张运昌许楠郭崇李育宽
Owner JILIN UNIV