Function test device and method of engine variable valve timing (VVT) system

A technology for testing equipment and system functions, which is applied in the direction of engine testing, measuring equipment, testing of machine/structural components, etc., and can solve problems such as complex process, high cost, new engine development, and production plan impact

Inactive Publication Date: 2012-06-27
HARBIN DONGAN AUTO ENGINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the invisibility of the engine VVT ​​system, in the development stage of the VVT ​​engine, due to the lack of complete matching electronic control unit (ECU) data, it is impossible to effectively judge whether the function of the engine VVT ​​system is effective, which may affect...

Method used

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  • Function test device and method of engine variable valve timing (VVT) system
  • Function test device and method of engine variable valve timing (VVT) system
  • Function test device and method of engine variable valve timing (VVT) system

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Embodiment Construction

[0007] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Depend on Figure 1-Figure 3 It can be seen that the present invention includes an alligator clip 1, a wire 2 and a phase control valve plug-in 3, and one end of the wire 2 is divided into two branches to connect a pair of alligator clips 1, and the other end is connected to a phase control valve plug-in 3, and one end of the alligator clip 1 is used for connecting External power supply, one for grounding, and phase control valve plug-in 3 connected to the phase control valve of the VVT ​​system. Take the following steps: a. Start the engine and the engine works normally; b. The test device is connected correctly, the two alligator clips are respectively connected to the external power supply and grounding, and the phase control valve plug-in is plugged into the phase control valve of the VVT ​​system. The phase control valve is powered indepen...

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Abstract

The invention relates to a function test device and a function test method of an engine variable valve timing (VVT) system, wherein the function test device comprises crocodile clips, a lead and a phase control valve plug-in unit, one end of the lead is divided into two branches to be connected with a pair of crocodile clips, the other end of the lead is connected with the phase control valve plug-in unit, one crocodile clip is used for being connected with an external power source, the other crocodile clip is used for grounding, and the phase control valve plug-in unit is connected with a phase control valve of the VVT system. The device and the method have the advantages that the structure is simple, the design is reasonable, the cost is low, the test method has simple processes, is easy to use, whether the function of the engine VVT system is ineffective or not can be judged through dependently controlling the phase control valve during the development period of a VVT engine under the premise of no VVT drive data, the development period of the engine is shortened, and the research and development of new products are promoted.

Description

technical field [0001] The invention relates to an engine VVT ​​system function test device and a test method, belonging to the technical field of automobile engine maintenance and detection. Background technique [0002] At present, with the continuous development of automobile technology, variable valve timing (VVT) technology can significantly improve the charging efficiency and increase engine power, and is more and more widely used in the field of automobile engines. However, due to the invisibility of the engine VVT ​​system, in the development stage of the VVT ​​engine, due to the lack of complete matching electronic control unit (ECU) data, it is impossible to effectively judge whether the function of the engine VVT ​​system is effective, which may affect the development of new engines. 1. The production plan has a serious impact; if the VVT ​​function of the VVT ​​engine fails after batch production, it is often necessary to use a professional fault diagnosis instru...

Claims

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Application Information

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IPC IPC(8): G01M15/00
Inventor 肖凌翔王子英杨宝全滕红段奎军王德春王强王欣
Owner HARBIN DONGAN AUTO ENGINE
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