Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for torsional vibration analysis of a dual-motor coupling-driven electric vehicle powertrain system

A power transmission system and coupling drive technology, applied in the fields of electrical digital data processing, instruments, geometric CAD, etc., can solve complex NVH problems and other problems, and achieve the effect of shortening product development time and reducing research and development costs

Active Publication Date: 2022-07-12
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in dual-motor coupling-driven electric vehicles, after the output torque of the two motors is coupled through the transmission system, the NVH problem caused by the vehicle as a whole is relatively more complicated.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for torsional vibration analysis of a dual-motor coupling-driven electric vehicle powertrain system
  • A method for torsional vibration analysis of a dual-motor coupling-driven electric vehicle powertrain system
  • A method for torsional vibration analysis of a dual-motor coupling-driven electric vehicle powertrain system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] The invention provides a torsional vibration analysis method for a dual-motor coupling-driven electric vehicle power transmission system, such as figure 1 shown, including the following steps:

[0029] Step 1. Establish a torsional vibration model of the power transmission system based on the configuration of the power transmission system of the electric vehicle driven by the dual-motor coupling; abstract the components in the power transmission system as nodes with moment of inertia, the shaft...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a torsional vibration analysis method of a dual-motor coupling-driven electric vehicle power transmission system, in particular to the field of vehicle noise and vibration control, and aims to solve the torsional vibration NVH problem of dual-motor coupling-driven electric vehicles. This method completes a systematic and comprehensive analysis of the inherent characteristics and forced torsional vibration response of the transmission system by establishing the torsional vibration model, mathematical calculation and analysis process of the vehicle power transmission system. For torsional vibration NVH problems, the analysis results are displayed intuitively, which effectively shortens the product development cycle and reduces the development cost.

Description

technical field [0001] The invention relates to the field of vehicle noise and vibration control, in particular to a torsional vibration analysis method for a power transmission system of a dual-motor coupling-driven electric vehicle. Background technique [0002] The torsional vibration of the automobile transmission system directly affects the comfort and safety of the automobile. The quality of the torsional vibration of the automobile has become one of the important reference factors for people to evaluate the quality of the automobile, and affects the choice of people to buy a car. In the transmission system of an automobile, engine characteristics, road input, and gear backlash in the transmission system are the main excitation sources that cause the load change of the transmission system. The torsional vibration of the transmission system is coupled with other vibration forms such as engine vibration, bending vibration and axial vibration of the transmission system, w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/15G06F119/14
CPCY02T90/00
Inventor 岳宏伟何洪文
Owner BEIJING INSTITUTE OF TECHNOLOGYGY