Heavy-duty diesel vehicle and engine aftertreatment anti-cheating method and system thereof

A heavy-duty diesel and engine technology, applied in engine components, combustion engines, machines/engines, etc., can solve environmental pollution and other problems

Active Publication Date: 2020-09-08
ANHUI HUALING AUTOMOBILE
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this kind of cheating method has

Method used

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  • Heavy-duty diesel vehicle and engine aftertreatment anti-cheating method and system thereof
  • Heavy-duty diesel vehicle and engine aftertreatment anti-cheating method and system thereof
  • Heavy-duty diesel vehicle and engine aftertreatment anti-cheating method and system thereof

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0041] Please refer to figure 1 , the anti-cheating method of the engine aftertreatment of the heavy-duty diesel vehicle provided by the application comprises the following steps:

[0042] Step S1, obtaining the rotational speed and torque of the engine 1, and determining the exhaust gas temperature reference range through the rotational speed and torque;

[0043] Specifically, the rotational speed of the engine 1 and the torque of the engine 1 can be directly read by an ECU (Elect...

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Abstract

The invention discloses a heavy-duty diesel vehicle and an engine aftertreatment anti-cheating method and system thereof. The engine aftertreatment anti-cheating method of the heavy-duty diesel vehicle comprises the following steps of acquiring the rotating speed and torque of an engine, and determining the exhaust temperature reference range; acquiring an exhaust temperature detection value; judging whether the exhaust temperature detection value is within an exhaust temperature reference range or not; and if not, sending an external torque request instruction to the ECU to limit the output torque of the engine. According to the engine aftertreatment anti-cheating method of the heavy-duty diesel vehicle, a response can be made when the aftertreatment system has a cheating condition, the torque output of the engine is limited, a driver is forced to recover the normal working state of a exhaust temperature sensor, and the effect of protecting the environment is achieved.

Description

technical field [0001] The present application relates to the technical field of post-processing, and more specifically, to a heavy-duty diesel vehicle and its engine post-processing anti-cheating method and system. Background technique [0002] The current national heavy-duty diesel engine emission regulations have certain requirements on the emission of nitrogen oxides in the exhaust. In this regard, various engine companies have added an after-treatment system to the design, and the after-treatment system needs to add urea solution to react with the nitrogen oxides in the exhaust gas. The urea solution is a consumable, which not only does not increase any income for the users of the vehicle, but also increases the operating cost. [0003] The inventors found that some users increased the position of the exhaust temperature sensor above the catalytic converter of the aftertreatment system by changing the installation bolts of the exhaust temperature sensor, so that the af...

Claims

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Application Information

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IPC IPC(8): F01N11/00
CPCF01N11/002Y02T10/40
Inventor 马永兵彭升平于洋马明罗江张理志翁海溶
Owner ANHUI HUALING AUTOMOBILE
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