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Diesel engine transient-emission control system based on intelligent transportation system and control method of diesel engine transient-emission control system

A diesel engine, transient technology, applied in engine control, electrical control, exhaust treatment and other directions, can solve the problems of engine intake and exhaust path time lag, limited effect, etc., to improve transient emissions, simple control strategy, easy to industrial The effect of practice

Active Publication Date: 2017-02-08
JILIN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the serious time lag problem in the intake and exhaust passages of the engine, the method of judging by sensor signals has limited effect

Method used

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  • Diesel engine transient-emission control system based on intelligent transportation system and control method of diesel engine transient-emission control system

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Experimental program
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Embodiment Construction

[0022] see figure 1 As shown, the diesel engine transient emission control system based on the intelligent transportation system of the present invention consists of an electronically controlled EGR valve 1, a throttle valve 2, a variable geometry section supercharger 3, a compressor 4, an SCR catalyst 5, and a urea injector 6 , three-way 7, engine exhaust manifold 8, engine intake manifold 9, engine sensor information acquisition unit 10, intake and exhaust control actuator electronic control unit 11, intelligent transportation system information acquisition and transient condition prediction unit 12. , wherein the engine sensor information acquisition unit 10 and the intelligent transportation system information acquisition and transient operating condition prediction unit 12 are connected to the electronic control unit 11 of the intake and exhaust control actuator; the electronic control unit 11 of the intake and exhaust control actuator is connected to the electronically co...

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Abstract

The invention discloses a diesel engine transient-emission control system based on an intelligent transportation system and a control method of the diesel engine transient-emission control system, and belongs to the technical field of diesel engine transient-emission control. The control system is characterized in that an engine sensor information acquisition unit and an intelligent transportation system information acquisition and transient operating condition prejudgment unit are connected with an intake / exhaust control actuator electric control unit; and the intake / exhaust control actuator electric control unit is connected with an electric control EGR (Exhaust Gas Recirculation) valve, a throttle valve, a VGT (Variable Geometry Turbocharger) and an urea injector. According to the invention, the vehicle-mounted intelligent transportation system is used to acquire such information as traffic flow, road length and traffic light ahead; and based on certain driving optimization and intelligent driving strategies, transient operating conditions can be predicted in advance to guide the transient-emission control system to make a response in advance, so that the diesel engine transient-emission control efficiency can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of diesel engine transient emission control, in particular to a diesel engine transient emission control system and a control method based on an intelligent traffic system. Background technique [0002] It's been over a century since the advent of the internal combustion engine. Modern industry, transportation, mechanized agriculture and other fields have a particularly large demand for it, and its power output accounts for about 90% of mobile power devices, which has huge advantages. The world is a unity of contradictions, and the internal combustion engine is no exception. While providing a powerful driving force for the development of human beings, it also inevitably brings up many serious problems for human beings, one of which is environmental pollution. [0003] Among the internal combustion engines, the largest proportions are gasoline engines and diesel engines. Compared with gasoline engines, die...

Claims

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Application Information

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IPC IPC(8): F02D43/00F02D29/02
CPCF01N2900/1616F02D29/02F02D37/00F02D2200/70F02D2200/701F02D2200/702
Inventor 赵靖华丛飚周伟谭振江吕凯
Owner JILIN NORMAL UNIV