Supercharge Your Innovation With Domain-Expert AI Agents!

Testing device and method for starting neutral position protection of engine

A technology of engine starting and testing equipment, which is applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve problems such as high cost and safety accidents, achieve high safety, avoid purchase costs, and avoid safety problems.

Pending Publication Date: 2021-12-03
DONGFENG COMML VEHICLE CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, such a test method is not only costly, but also has a certain test risk, which is likely to cause safety accidents

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
  • Testing device and method for starting neutral position protection of engine
  • Testing device and method for starting neutral position protection of engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0036] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0037] The principle of EECU's engine start neutral protection function is: EECU checks the current state of the vehicle. The inspection process is divided into two parts, namely, the initial condition c...

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 the technical field of EECU testing, in particular to a testing device and method for starting neutral position protection of an engine. The testing device comprises a gearbox signal simulation circuit, a starting power-on signal simulation circuit and a controlled simulation engine assembly. The gearbox signal simulation circuit is used for generating a gear signal and inputting the gear signal into an EECU; the starting power-on signal simulation circuit is used for generating a starting power-on signal and inputting the starting power-on signal into the EECU; and the controlled simulation engine assembly is used for acquiring a control signal generated by the EECU according to the gear signal and the starting power-on signal, and controlling whether the controlled simulation engine assembly is started or not according to the control signal so as to judge whether the function of starting neutral position protection of the engine of the EECU is effective or not. The problems that in the prior art, adopted testing equipment is a real testing vehicle, the starting operation is executed in a non-neutral-position state, the mode of observing whether an engine is normally started or not is high in cost, testing risks exist, and safety accidents are likely to be caused can be solved.

Description

technical field [0001] The invention relates to the technical field of EECU testing, in particular to a testing device and method for engine starting neutral gear protection. Background technique [0002] Engine neutral start protection means that the engine will not turn when the start operation is performed in a non-neutral state. Only when the engine is in neutral, the engine will turn when the start operation is performed to ensure the safety of the vehicle when starting. EECU (Engine Electronic Control Unit) is an important part of the engine neutral start protection function for the vehicle inspection process, that is, when the vehicle is in a non-neutral state, in order to prevent the vehicle from driving forward suddenly and protect the driver's personal safety, at this time, EECU It is forbidden to send the activation signal of the starting relay to realize the starting neutral protection function. [0003] For the engine start neutral protection function test, 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
IPC IPC(8): F02D41/06F02D45/00G06F30/20
CPCF02D41/062F02D45/00G06F30/20Y02T10/40
Inventor 李栋文龙祥蔡西徐丹刘振华赵毅吕婷婷王磊周杰敏张衡
Owner DONGFENG COMML VEHICLE CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com