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Test method and test device for number of engine cylinders

A technology of engine cylinder and test method, applied in the direction of engine components, engine control, combustion engine, etc., can solve the problem of engine starting with error report

Active Publication Date: 2021-06-22
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to at least solve the problem that when the relevant data calibration of the existing ECU does not match the actual number of cylinders of the engine, an error will be reported during the program initialization, thereby limiting the starting of the engine

Method used

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  • Test method and test device for number of engine cylinders
  • Test method and test device for number of engine cylinders
  • Test method and test device for number of engine cylinders

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Embodiment Construction

[0033] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0034] It should be understood that terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated fea...

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Abstract

The invention belongs to the technical field of vehicle engines, and in particular relates to a test method and a test device for the number of engine cylinders. The method for testing the number of engine cylinders of the present invention comprises the steps of: sending a test pulse signal to each cylinder fuel injector; obtaining the response signal returned by each cylinder fuel injector; Operational or trigger limit start failure. In the method for testing the number of engine cylinders of the present invention, according to the comparison between the number of response signals and the number of cylinders set, the normal operation is controlled or the limit start fault is triggered. Use the test pulse to confirm the connection of the fuel injectors of each cylinder during initialization, and then judge whether the set data matches the engine. Avoid engine startup failure or abnormal damage caused by incorrect data usage.

Description

technical field [0001] The invention belongs to the technical field of vehicle engines, and in particular relates to a test method and a test device for the number of engine cylinders. Background technique [0002] When the relevant data calibration of the ECU does not match the actual number of cylinders of the engine, an error will be reported during program initialization, thereby restricting the engine from starting, which will cause serious problems of engine scuffing. Contents of the invention [0003] The purpose of the present invention is to at least solve the problem that when the relevant data calibration of the existing ECU does not match the actual number of cylinders of the engine, an error will be reported when the program is initialized, thereby limiting the starting of the engine. This purpose is achieved through the following technical solutions: [0004] A first aspect of the present invention proposes a method for testing the number of engine cylinders...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/22F02B77/08G01R31/54
CPCF02B77/08F02D41/22F02D2041/228Y02T10/40
Inventor 秦涛武迎迎赵光亮曹石李苑玮赵国强
Owner WEICHAI POWER CO LTD
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