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

A technology for transportation systems and diesel engines, which is applied to the transient emission control system and control field of diesel engines, can solve problems such as limited effect and time lag of engine intake and exhaust paths, and achieves a simple control strategy, improved transient emissions, and strong versatility. Effect

Active Publication Date: 2019-03-29
JILIN NORMAL UNIV
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  • Abstract
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  • Claims
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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 and control method based on intelligent transportation system

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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, an air compressor 4, an SCR catalytic converter 5, and a urea injector 6 , tee 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 working 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 with the intake and exhaust control actuator electronic control unit 11; the intake and exhaust control actuator electronic control unit 11 is connected with the electronic...

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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, and in particular relates to a diesel engine transient emission control system and control method based on an intelligent transportation system. Background technique [0002] It has been more than a century since the invention of the internal combustion engine. Modern industry, transportation, mechanized agriculture and other fields are in great 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 human development, it inevitably also raises many serious problems for human beings, one of which is environmental pollution. [0003] Among the internal combustion engines, gasoline engines and diesel engines have the largest proportion. Compared with gasoline engines, diesel...

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Application Information

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Patent Type & Authority Patents(China)
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