Evaluation method for evaluating hill-start performance of vehicle

A technology of car ramps and evaluation methods, applied in the field of automobiles, can solve the problem of no relevant evaluation methods for car ramp start.

Active Publication Date: 2017-11-10
NANJING NAVECO AUTOMOBILE CO LTD
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention provides an evaluation method for a car starting on a hill, which can solve the problem that there is no relevant evalua

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
  • Evaluation method for evaluating hill-start performance of vehicle
  • Evaluation method for evaluating hill-start performance of vehicle
  • Evaluation method for evaluating hill-start performance of vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] A kind of evaluation method of automobile slope starting of the present invention, comprises the following steps:

[0039] Step 1, park the car on a ramp with a slope of n% under the maximum total mass state, and keep the car in a parking state;

[0040] Step 2. The driver drives the car to start on a hill, and after driving for a certain distance on the hill, keep the car parked;

[0041] Step 3, repeat step 2, the number of ramp starts is not less than 2 times;

[0042] Step 4, judging the completion state of each ramp start state;

[0043] Step 5, evaluating whether the automobile produces unfavorable phenomena during the start process of the automobile on a ramp.

[0044] Further, in the steps 1 to 3, the car stops on a slope of 12% under the maximum total mass state, and the driver drives the car to make the car complete the start of the slope within 8 seconds, and can finish a lot within 5 minutes. Start on the 5th ramp.

[0045] Further, the slope of the ramp...

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 an evaluation method for evaluating the hill-start performance of a vehicle and belongs to the technical field of vehicles. The method comprises the following steps of 1, parking a vehicle on a ramp at the gradient of n% when the vehicle is in the maximum total mass state, and keeping the parking state of the vehicle; 2, driving the vehicle to carry out the hill starting process by a driver, and keeping the parking state of the vehicle after the hill starting process of the vehicle is carried over a certain distance; 3, repeating the step 2, and carrying out hill starting processes for at least two times; 4, judging the state completion condition of each hill starting process; 5, evaluating and judging whether bad phenomena occur during the hill starting process of the vehicle or not, wherein the bad phenomena are composed of abnormal sound, abnormal smell, engine stall, wheel trackslip, reverse execution and the like. Therefore, the hill-start performance of the vehicle can be evaluated. Based on the evaluation method for evaluating the hill-start performance of the vehicle, the problem that no related evaluation method is available for evaluating the hill-start performances of vehicles in the prior art can be solved. As a result, the design personnel and users can evaluate the hill-start performances of vehicles.

Description

technical field [0001] The invention relates to an evaluation method for a car starting on a slope, and belongs to the technical field of cars. Background technique [0002] As far as the applicant knows, the car ramp belongs to the category of car longitudinal dynamic performance. In the past, car designers paid more attention to the ability of the car to pass through the road with a certain slope at full throttle at a certain speed in this field. In actual use, drivers often encounter the working condition of restarting after frequent parking on steep roads. [0003] So far, there is a lack of research and evaluation methods for cars starting on slopes in China. For example, GB / T12539 "Test Method for Cars Climbing Steep Slopes" only proposes that off-road vehicles stop on slopes for 2 minutes before starting to climb. There is no requirement for non-off-road vehicles, and there is no clear evaluation method for off-road vehicles' restarting and climbing. The absence of...

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
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 曹灿吕传志刘后明曹玮何岩
Owner NANJING NAVECO AUTOMOBILE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap