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Selective catalytic reduction (SCR) tail-gas after-treatment system fault diagnosis instrument

A technology for after-treatment of exhaust gas and system failure, which is applied in the diagnosis device of exhaust treatment device, exhaust treatment, electronic control of exhaust treatment device, etc. It can solve the problem that the failure point cannot be quickly judged, and shorten the fault finding the effect of time

Active Publication Date: 2013-06-12
KAILONG HIGH TECH
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  • Abstract
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Problems solved by technology

[0005] In view of the above technical problems, the purpose of the present invention is to provide a fault diagnosis instrument for SCR exhaust gas after-treatment system, which effectively solves the problem that the failure point cannot be quickly judged once the SCR exhaust gas after-treatment system fails, and is easy to use and portable

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  • Selective catalytic reduction (SCR) tail-gas after-treatment system fault diagnosis instrument

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.

[0020] Please refer to FIG. 1 , the SCR exhaust gas post-treatment system fault diagnosis instrument in this embodiment includes: CAN communication module 101 , micro control unit 102 , indicator light 103 , memory 104 , display screen 105 , keyboard 106 and power supply 107 .

[0021] The CAN communication module 101 is electrically connected with the SCR exhaust gas after-treatment system and the engine, and is used to obtain fault information fed back by various sensors in the SCR exhaust gas after-treatment system and engine status information.

[0...

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Abstract

The invention discloses a selective catalytic reduction (SCR) tail-gas after-treatment system fault diagnosis instrument, which comprises a controller network (CAN) communication module, a microcontrol unit, a storage device, a display screen, a keyboard and a power supply. The CAN communication module is electrically connected with an SCR tail-gas after-treatment system and an engine. The microcontrol unit is electrically connected with the CAN communication module and the display screen. The storage device is electrically connected with the microcontrol unit, and the keyboard is electrically connected with the microcontrol unit. The power supply is electrically connected with the microcontrol unit. Due to the adoption of the SCR tail-gas after-treatment system fault diagnosis instrument, the fault of the SCR tail-gas after-treatment system can be accurately judged, the fault finding time can be shortened, and convenience in use and carrying also can be realized.

Description

technical field [0001] The invention relates to the technical field of SCR tail gas after-treatment, in particular to a fault diagnosis instrument for an SCR tail gas after-treatment system. Background technique [0002] With the rapid development of China's economy and science and technology, the development of my country's automobile industry continues to grow. The increase in the number of cars has greatly improved the quality of life of the people, but the energy and environmental problems related to it have gradually emerged. On the one hand, with the increase in the number of automobiles, the consumption of fossil fuels such as oil has also increased rapidly, and has continuously broken through the international oil safety warning line; Emissions have become a major source of pollution in the urban environment. In view of the increasingly severe environmental protection and energy pressure in our country, the country has stricter and stricter requirements on vehicle ...

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Application Information

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IPC IPC(8): F01N11/00
CPCY02T10/40
Inventor 臧志成
Owner KAILONG HIGH TECH
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