Power flexible driving system of new energy automobile

A new energy vehicle, flexible transmission technology, applied in vehicle components, control devices, transportation and packaging, etc., can solve the problems of drive motor damage, impact, surge, etc., to reduce torsional vibration and noise, facilitate operation, reduce the The effect of gear shock

Inactive Publication Date: 2016-08-17
TANGSHAN PULIN YIWEI TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the "surge" in the start and acceleration process of traditional new energy vehicles; the vibration and impact during the gear shift process; damage and other issues, a new energy vehicle power flexible transmission system is proposed

Method used

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  • Power flexible driving system of new energy automobile

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] refer to figure 1 , a new energy vehicle power flexible transmission system, which is composed of a drive motor 1, a torsional shock absorber and a transmission 8. The driving disc 5 of the torsional shock absorber is fixedly connected to the output shaft 2 of the drive motor through an inertial flywheel 3, and the torsional shock absorber The driven disk hub 6 of the transmission is fixedly connected with the input shaft 7 of the transmission.

[0016] The transmission 8 may be an electromechanical automatic transmission (EMT), or other types of mechanical transmissions.

[0017] For new energy vehicles equipped with this device, there are four working conditions as follows during driving:

[0018] 1. Start-up acceleration condition When the car starts to accelerate from a standstill, the requested torque determined by the accelerator pedal signal a...

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Abstract

The invention relates to a power flexible driving system of a new energy automobile. The power flexible driving system comprises a drive motor and a speed changer. The power flexible driving system is characterized in that the drive motor is in drive connection with the speed changer through a torsion damper, that is, a drive disk of the torsion damper is fixedly connected with an output shaft of the drive motor through an inertia flywheel, and a driven disk of the torsion damper is fixedly connected with an input shaft of the speed changer. The system can avoid low-frequency resonance phenomenon and reduce torsional vibration and noise of the driving system, reduce gear shifting impact in the gear shifting process of a new energy automobile EMT and reduce reverse torque impact, caused when disturbance torque excitation reacts on the driving system, on the drive motor. Vehicle starting, acceleration stationarity, gear shifting smoothness and riding comfort can be improved, damage to a power driving device of shaking impact is lowered, and the power flexible driving system has important significance for improving the reliability of the motor, the EMT and the driving system and prolonging service life.

Description

technical field [0001] The invention relates to a novel new energy vehicle power transmission system. Background technique [0002] When the car is accelerating at the start or the power transmission system is disturbed by torque, under the condition of sudden load change, the transmission system has the jitter phenomenon of the natural frequency of torque vibration, which is manifested as a low-frequency and large-scale fluctuation of the longitudinal acceleration of the vehicle. This jitter phenomenon is also called It is called "surge". In the power train of a traditional automobile, a clutch assembly is installed between the engine and the transmission. The clutch can absorb the torsional vibration under the excitation of engine fluctuating torque and the torsional vibration and noise generated under the load mutation condition of the transmission system. For new energy vehicles, in the past, there was a rigid connection between the drive motor and the electric-control ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/04
CPCB60K17/04
Inventor 程秀生赵泉勇白光申徐建忠李建磊王全海闫玉刚钟建明杨正
Owner TANGSHAN PULIN YIWEI TECH CO LTD
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