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

Construction method for working condition of semi-trailer tractor

A tractor and working condition technology, applied in instrumentation, geometric CAD, design optimization/simulation, etc., can solve unfavorable product promotion of semi-trailer tractors, difficulty in powertrain configuration selection, inability to fully represent the driving characteristics of tractors, etc. problem, to achieve the effect of small memory usage, fast processing speed and high precision

Active Publication Date: 2021-06-25
SINO TRUK JINAN POWER
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the driving characteristics of semi-trailer tractors are relatively fixed, such as usage, load, and transportation routes, the selection of different powertrain configurations for tractors in areas with different usage and different driving characteristics can reduce vehicle fuel consumption, reduce emissions, and improve ride quality. Performance such as feeling is of great significance. Although the industry has established the China Semi-trailer Tractor Train Driving Condition (CHTC-TT) suitable for domestic road conditions, it cannot fully represent the driving characteristics of tractors in different market fields. It brings certain difficulties to the selection of powertrain configuration, which is not conducive to the promotion of semi-trailer tractor products

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
  • Construction method for working condition of semi-trailer tractor
  • Construction method for working condition of semi-trailer tractor
  • Construction method for working condition of semi-trailer tractor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Please refer to figure 1 , this embodiment provides a method for constructing a working condition of a semi-trailer tractor.

[0054] Taking the 6×4 semi-trailer tractor as an example, the driving conditions of the short-distance transportation operation section are constructed.

[0055] Market division, data collection, and preprocessing: According to market research and the tracking and analysis results of some heavy-duty tractor driving data, the heavy-duty tractor market in eastern my country is divided into long-distance transportation, medium For long-distance transportation and short-distance transportation, vehicles with different transportation distances can be further divided according to the usage scenarios, transportation load and vehicle type: for example, a logistics company’s 6×4 vehicle type mainly transports bulk cement, sand and gravel, etc., and the operating route is Zibo-Dongying , the transportation distance is about 112km, and the standard load is ...

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 semi-trailer tractor working condition construction method, which comprises the following steps: dividing market fields by using driving characteristics of various semi-trailer tractors, collecting driving data of the semi-trailer tractors in a target field, and establishing a kinematics fragment database in the field; calculating characteristic values of all kinematics fragments, and obtaining dimensionless indexes after standardization processing; performing de-correlation and dimension reduction processing on the dimensionless indexes by using a principal component analysis method to obtain principal component values of all kinematics fragments; clustering all the kinematic fragments according to the principal component values, and segmenting the time of the representative working condition according to the proportion of each cluster in all the kinematic fragments; selecting kinematics fragments meeting representative working condition segmentation time from each cluster for random combination, and screening candidate working conditions from all combinations according to speed-acceleration joint probability distribution and characteristic values of all the combinations; and through analogue simulation, selecting one candidate working condition from the two candidate working conditions as a representative working condition of the target field.

Description

technical field [0001] The invention belongs to the field of construction of vehicle working conditions, and in particular relates to a construction method of semi-trailer tractors in typical working conditions of different markets. Background technique [0002] The most important input condition for evaluating vehicle fuel economy and emission performance is the vehicle’s driving conditions. Whether the driving conditions can accurately restore the road driving characteristics of the real vehicle is of great importance to the selection of powertrain configuration in the early stage of vehicle development and the direction of optimization in the later stage. Guiding significance is a key part of automobile research and development. [0003] Since the driving characteristics of semi-trailer tractors are relatively fixed, such as usage, load, and transportation routes, the selection of different powertrain configurations for tractors in areas with different usage and different...

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 Applications(China)
IPC IPC(8): G06F30/15G06F30/27G06K9/62
CPCG06F30/15G06F30/27G06F18/23213G06F18/2135G06F18/23
Inventor 蔡东马纬明任帅飞宁凡坤徐伟刚王殿辉黄洪印周亚运
Owner SINO TRUK JINAN POWER
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