Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Electric vehicle interior vibration and noise prediction method and device

A technology for electric vehicles and prediction methods, applied in the field of vehicle NVH, can solve problems such as driver and passenger discomfort, and achieve the effect of shortening the adjustment cycle and reducing R&D costs.

Active Publication Date: 2020-12-11
GUANGZHOU AUTOMOBILE GROUP CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For electric vehicles, because there is no engine excitation, the vehicle is relatively quiet when powered on, and because there is no masking effect of engine noise, the low background noise makes the electrical equipment (air conditioning compressor, steering pump, brake pump, etc.) Vibration and noise become prominent. If the vibration and noise of these electrical equipment are not well controlled, it will bring discomfort to the drivers and passengers in the car

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
  • Electric vehicle interior vibration and noise prediction method and device
  • Electric vehicle interior vibration and noise prediction method and device
  • Electric vehicle interior vibration and noise prediction method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The content of the present invention will be further described in detail below in conjunction with preferred embodiments and accompanying drawings. Apparently, the embodiments described below are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] It should be understood that although the terms "first", "second", etc. are used hereinafter to describe various information, these information should not be limited to these terms, and these terms are only used to distinguish information of the same type from each other. For example, "first" information may also be referred to as "second" information without departing from the scope of the present invention, and similarly, "second" information may also be referred to as "first" info...

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 relates to methods and devices for predicting the vibration and noise in an electric vehicle. The vibration predicting method includes the steps of acquiring a vibration transfer function from a target installation position to a vibration test position of electric equipment in an electric vehicle and an excitation force of the electric equipment; and determining the vibration response of the vibration test position when the electric equipment works at the target installation position according to the excitation force and the vibration transfer function. According to the invention, the influence on the vibration and noise in the electric vehicle when a variety of electric equipment works at different positions can be accurately predicted, the vehicle test calibration cycle is shortened, and the vehicle NVH R&D costs are reduced.

Description

technical field [0001] The invention relates to the technical field of vehicle NVH, in particular to a method and device for predicting vibration and noise inside an electric vehicle. Background technique [0002] NVH is the English abbreviation of noise, vibration and harshness (Noise, Vibration, Harshness). NVH is a comprehensive issue to measure the quality of vehicle manufacturing, and it gives the driver the most direct and superficial feeling. The NVH problem of vehicles is one of the concerns of major vehicle manufacturers and parts companies. [0003] The prediction of vibration and noise in the vehicle has always been the focus and difficulty of NVH development. For electric vehicles, because there is no engine excitation, the vehicle is relatively quiet when powered on, and because there is no masking effect of engine noise, the low background noise makes the electrical equipment (air conditioning compressor, steering pump, brake pump, etc.) Vibration and noise ...

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): G01M17/007G01M7/02
CPCG01M7/00G01M17/007
Inventor 彭程徐峰孙敏王理周
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com