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

Vehicle delivery route acquisition method and device

A transmission path and acquisition method technology, applied in the field of vehicle transmission path acquisition, to achieve the effects of reducing vehicle weight, avoiding over-design, and reducing costs

Active Publication Date: 2019-04-09
SAIC MOTOR
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the embodiments of the present invention is how to quickly obtain the contribution of each transmission path to the noise inside the entire vehicle

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
  • Vehicle delivery route acquisition method and device
  • Vehicle delivery route acquisition method and device
  • Vehicle delivery route acquisition method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In the prior art, when using the transfer path analysis method, the user needs to analyze each transfer path in turn to obtain the contribution of each transfer path to the vehicle interior noise. However, in practical applications, the number of transmission paths is large, the workload is large, the efficiency is low, and errors are prone to occur.

[0036] In the embodiment of the present invention, the first difference curve between the interior noise and the target noise value, and the second difference curve between the interior noise signal and each transmission path are acquired. According to the first difference curve and the second difference curve, the difference between the difference between the first difference curve and the second difference curve at the same frequency point can be known, and the difference between the first difference curve and The corresponding preset threshold value is compared, and the difference value of the second difference curve i...

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 discloses a vehicle transmission path obtaining method and device, and the method comprises the steps: obtaining an in-vehicle noise signal, and carrying out the transmission path analysis of the in-vehicle noise signal; solving the difference between the amplitude value of the in-vehicle noise signal and a target noise value corresponding to the same frequency point, and obtaining a first difference curve; solving the difference between the amplitude of the in-vehicle noise signal and the noise amplitude value generated by each transmission path corresponding to the same frequency point, and obtaining a second difference curve; and obtaining the contribution coefficient of the transmission path corresponding to the frequency point according to the relation between the differences, corresponding to the same frequency point, of the first and second difference curves and the corresponding preset threshold values. The method and device can quickly obtain the contribution of each transmission path to the whole in-vehicle noise.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a method and device for acquiring a vehicle transmission route. Background technique [0002] In recent years, with the rapid development of the automobile industry, people have higher and higher requirements on the performance of vehicle noise, vibration, and harshness (NVH). important topic. [0003] In order to avoid problems such as vibration and noise being discovered and repaired after the development of the car is completed, the noise inside the car is usually analyzed by the method of transfer path analysis during the process of car development. Through the transfer path analysis method, the contribution of each transfer path to the whole interior noise can be obtained. [0004] However, when using the existing transmission path analysis method, the user needs to analyze each transmission path in turn. When the number of transmission paths is large, the workload is large, the...

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): G01M7/02G01M17/007
Inventor 饶建渊靳春梅姚斌辉刘飞邱优峰韩亮
Owner SAIC MOTOR
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