Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Particulate matter sensor unit

Inactive Publication Date: 2013-06-13
HYUNDAI MOTOR CO LTD +2
View PDF19 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a particulate matter sensor unit that can accurately detect the amount of particulate matter (PM) that is released from a particulate filter and can also detect any damage that might occur to the filter. The sensor unit includes a silicone electrode layer with a front surface that is etched to a specific depth to form a protruding electrode, followed by the addition of an insulation layer to cover the protruding electrode. The insulation layer is then selectively removed to form a sensing electrode pad and a heater electrode. This design allows for the accurate detection of PM and ensures compliance with exhaust gas regulations. Overall, the particulate matter sensor unit offers improved accuracy in detecting PM and damage to the particulate filter.

Problems solved by technology

In the future, a pressure difference sensor will not be used to detect damage to the DPF according to exhaust gas regulations, and further, the detection precision of the pressure difference sensor is low.

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
  • Particulate matter sensor unit
  • Particulate matter sensor unit
  • Particulate matter sensor unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036]Reference will now be made in detail to various embodiments of the present invention(s), examples of which are illustrated in the accompanying drawings and described below. While the invention(s) will be described in conjunction with exemplary embodiments, it will be understood that the present description is not intended to limit the invention(s) to those exemplary embodiments. On the contrary, the invention(s) is / are intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.

[0037]An exemplary embodiment of the present invention will hereinafter be described in detail with reference to the accompanying drawings.

[0038]FIG. 1 is a schematic interior perspective view showing a condition that a particulate matter sensor unit is disposed in an exhaust line according to an exemplary embodiment of the presen...

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

A particulate matter (PM) sensor unit may include an exhaust line where exhaust gas passes, and a PM sensor that may be disposed at one side of the exhaust line and that generates a signal when particulate matter included in the exhaust gas passes the vicinity thereof, wherein the PM sensor may be an electrostatic induction type that generates an induction charge while the particulate matter having an electric charge passes the vicinity thereof.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]The present application claims priority to Korean Patent Application No. 10-2011-0132255 filed in the Korean Intellectual Property Office on Dec. 9, 2011, the entire contents of which is incorporated herein for all purposes by this reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a particulate matter sensor unit that accurately and effectively detects damage to a particulate filter filtering particulate matter (PM) included in exhaust gas and transmits the detected signal to a control portion.[0004]2. Description of Related Art[0005]A diesel particulate filter (DPF) has been being applied to a diesel vehicle so as to reduce PM thereof, and a pressure difference sensor is applied to detect a PM amount that is trapped in the diesel particulate filter.[0006]In the future, a pressure difference sensor will not be used to detect damage to the DPF according to exhaust gas regulations, and...

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): G01N7/06H05K13/00
CPCG01N15/0656G01N33/0027G01N27/02F01N2560/05F01N3/021F01N11/00
Inventor LEE, JIN HACHO, JI HOCHUN, KUKJINKANG, SUNGCHANJANG, KEUNHO
Owner HYUNDAI MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com