Engine with EGR system, control method and vehicle

A control method and engine technology, applied in the field of vehicles, can solve problems such as unstable combustion

Pending Publication Date: 2022-02-18
深圳臻宇新能源动力科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the EGR rate is too large, it will cause combustion instability

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
  • Engine with EGR system, control method and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0028] Reference below figure 1 An engine 100 with an EGR system, a control method, and a vehicle according to embodiments of the present invention are described.

[0029] like figure 1 As shown, the engine 100 with the EGR system according to the embodiment of the first aspect of the present invention includes: an engine body 10, a plurality of cylinders are arranged in the engine body 10, and the engine body 10 has an intake manifold 11 and an exhaust manifold 12; EGR assembly 20, o...

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 invention discloses an engine with an EGR system, a control method and a vehicle, the engine comprises an engine body, wherein a plurality of air cylinders are arranged in the engine body, and the engine body is provided with an intake manifold and an exhaust manifold; an EGR assembly, wherein one end of the EGR assembly is communicated with the exhaust manifold; and a three-way valve and a catalyst, wherein an air inlet of the three-way valve communicates with the exhaust manifold, and a first air outlet and a second air outlet of the three-way valve communicate with the other end of the EGR assembly and the catalyst correspondingly so that waste gas in the exhaust manifold can selectively enter the catalyst or the EGR assembly. Therefore, the engine can be rapidly ignited, it is guaranteed that tail gas emission under the idling and starting working conditions meets the use requirements, the engine can operate in the low-temperature state, and after the temperature of the catalyst is high and the engine is switched to the medium-high-speed working condition, the EGR assembly is controlled to intervene in the working process of the engine, and the application range of the engine is widened.

Description

technical field [0001] The present invention relates to the technical field of vehicles, and in particular, to an engine with an EGR system, a control method and a vehicle. Background technique [0002] In related technologies, with the high requirements of fuel consumption and emission regulations, especially the implementation of the National VI emission targets, further requirements have been put forward for engine fuel consumption reduction and emission reduction. The application of exhaust gas recirculation system (EGR) can effectively reduce engine NO. X emissions. [0003] The EGR system re-introduces the engine exhaust gas into the intake system, mixes it with fresh gas and enters the combustion chamber. During the gas mixing process, due to the high exhaust gas temperature, the engine intake air temperature increases as a whole. [0004] With conventional exhaust gas recirculation systems, the exhaust gas flows out of the exhaust pipe and is cooled by an EGR cooler...

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): F02M26/16F02M26/15F02M26/28
CPCF02M26/16F02M26/15F02M26/28
Inventor 张小坤姚博
Owner 深圳臻宇新能源动力科技有限公司
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
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap