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Direct current motor EGR valve controller

A technology of EGR valve and DC motor, applied in electrical control, engine control, fuel injection control, etc.

Active Publication Date: 2014-10-01
WUXI LONGSHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the field of DC motor EGR valve manufacturing, there is no controller specially designed to control the DC motor EGR valve. In the process of testing and using the DC motor EGR, there is an urgent need for a controller that can control the DC motor EGR well. The valve is tested or works according to specific requirements

Method used

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] A DC motor EGR valve controller, its structure is as follows figure 1 shown. It includes a main chip module, a power supply module, a control module, a sensor input signal processing module, a communication module, a preheating control module and an auxiliary control module. The output terminals of the power supply module are respectively connected to the power terminals of the main chip module and the sensor input signal processing module. The input end of the main chip module is connected to the output end of the sensor input signal processing module, the output end of the main chip module is respectively connected to the input ends of the control module, the preheating control module and the auxiliary control module, and the main chip module communicates with the diagnostic instrument through the communication module Or computers communicate with e...

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Abstract

The invention discloses a direct current motor EGR valve controller which comprises a master chip module, a power module, a direct current motor EGR valve control module, a sensor input signal processing module, a communication module, a preheating control module and an auxiliary control module. Signals obtained by the sensor input signal processing module are logically processed through the master chip module, corresponding signals are output to control the control modules to work normally and logically, so that the opening degree of a direct current motor EGR valve is accurately controlled, and the direct current motor EGR valve is made to work or tested.

Description

technical field [0001] The invention relates to the technical field of direct current control, in particular to a direct current motor EGR valve controller in an engine tail gas exhaust gas recirculation system. Background technique [0002] DC motor EGR valve is one of the national four electronic control products developed by domestic enterprises for domestic vehicle (engine) factories. Its principle is to convert the rotational motion of the motor into the linear motion of the valve switch, and control the engine cycle through the opening and closing of the valve. The flow of exhaust gas is then introduced into the engine intake, thereby reducing the temperature and oxygen content in the engine combustion chamber, thereby reducing the emission of pollutants NOx. Compared with the pneumatic EGR valve, the DC motor EGR valve has the characteristics of fast response, precise control, and no vacuum source. [0003] At present, in the field of DC motor EGR valve manufacturing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/07F02D41/00F02D41/20F02D41/22
Inventor 谈宏亮
Owner WUXI LONGSHENG TECH
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