Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Exhaust temperature heat management method and equipment

An exhaust temperature and thermal management technology, applied in mechanical equipment, electrical control, fuel injection control, etc., can solve the problems of low engine load and low exhaust temperature, reduce the generation of carbon particles, reduce the amount of carbon deposits, good oxidative effect

Inactive Publication Date: 2019-12-17
WEICHAI POWER CO LTD
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a thermal management method and equipment for exhaust gas temperature to overcome the problem that due to the slow vehicle speed and low throttle, the engine often returns to idle speed, the engine load is low, and the exhaust temperature is still low only through the air intake throttle valve. The problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Exhaust temperature heat management method and equipment
  • Exhaust temperature heat management method and equipment
  • Exhaust temperature heat management method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] figure 1 A schematic diagram of the structure of the electronically controlled engine system provided by the embodiment of the present invention. Such as figure 1 As shown, the system provided in this embodiment includes: an engine 100 , an electronic control unit (Electronic Control Unit, ECU for short) 200 , and a selective catalytic re...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention provides an exhaust temperature heat management method and equipment. The method includes the steps that the opening of an accelerator of an engine, the aftertreatmenttemperature of an SCR system, the rotating speed of the engine and the working manner of the engine are acquired; and when it is detected that the opening of the accelerator is smaller than or equal to a preset opening threshold value, the aftertreatment temperature is smaller than or equal to a preset temperature lower limiting value, the rotating speed of the engine is located within a preset rotating speed threshold value range value and the working manner of the engine is in a preset manner, an exhaust butterfly valve is controlled to hold breath in order to increase the exhaust temperature, it can still be guaranteed that the exhaust temperature is located in the temperature needed by aftertreatment when the vehicle speed is low, the accelerator is low, the engine returns to an idlingstate and the load of the engine is low, the temperature of an aftertreatment carrier is increased, a good oxidizing effect is achieved, nitrogen oxides in tail gas are effectively reduced, generation of carbon particles is reduced, and the DPF carbon deposition amount is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of engines, in particular to a method and equipment for thermal management of exhaust gas temperature. Background technique [0002] With the increasingly stringent national regulations and the improvement of vehicle emission levels, diesel engine drainage levels are gradually increasing, and the requirements for vehicle exhaust management capabilities are becoming more and more stringent. Improving the thermal management capabilities of engine exhaust can greatly reduce pollution in exhaust gas production of things. [0003] At present, in electronically controlled engines, thermal management generally uses the air intake throttle valve to hold the air, thereby reducing the amount of gas entering the cylinder to increase the exhaust temperature of the engine; when the exhaust temperature is increased, the after-treatment carrier is increased. problem, thereby promoting the reducing ab...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F02D9/04F02D41/02
CPCF02D9/04F02D41/024F02D41/029F02D2200/0802F02D2200/101
Inventor 侯健鹏刘帅姚泽光
Owner WEICHAI POWER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products