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

Method and device for monitoring sensor

A sensor and parameter technology, applied in the field of monitoring sensors, can solve problems such as the failure of the intake pressure sensor, and achieve the effect of reliable identification

Inactive Publication Date: 2008-06-04
ROBERT BOSCH GMBH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of this approach is that it requires another sensor to be configured or this monitoring can only be done under certain operating conditions
If this operating condition occurs only infrequently, the intake air pressure sensor may have failed during prolonged operation

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
  • Method and device for monitoring sensor
  • Method and device for monitoring sensor
  • Method and device for monitoring sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be described below by taking an intake air pressure sensor as an example. However, the present invention is not limited to this use. The measure according to the invention can be used in various sensors in which a change in an operating parameter causes a corresponding change in the sensor output signal. The inventive measure can be used in particular with sensors for detecting the air quantity or a parameter which is dependent on or indicates the intake pressure. This measure can be used in particular in sensors for detecting the intake air quantity.

[0015] A sensor for detecting the intake air pressure and its associated analog / digital converter is indicated at 100 in FIG. 1 . The analog / digital converter supplies a signal UP to characteristic map 110 , which corresponds to the intake pressure. In this case, the parameters are converted into a signal PR which in turn is passed to a filter 120 . The output signal P of the filter 120 rea...

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 method and device for monitoring a sensor, in particular, a sensor for determining a pressure parameter which characterises the pressure of the inlet air in an internal combustion engine is disclosed. An error is recognised when a change in an operating parameter which characterises the injected amount of fuel has no corresponding change in the output parameter from the sensor as a result.

Description

technical field [0001] The invention relates to a method and a device for monitoring a sensor, in particular a sensor for monitoring a pressure parameter indicative of the pressure of the air fed into an internal combustion engine. Background technique [0002] A device and method for monitoring a sensor which detects a pressure parameter which corresponds to the air pressure entering the internal combustion engine is known from DE-4032451A1. Various monitoring methods and devices for intake air pressure sensors are described therein. The output signal of the intake pressure sensor is compared with a reference parameter. On the one hand, the output signal of the second intake air pressure sensor is used as a reference parameter. In another variant, the output signal of the intake pressure sensor is compared with a barometric pressure sensor under certain operating conditions, such as low load and low speed. In a fixed operating state, the measured value is compared with a...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/22F02D45/00G05B23/00
CPCF02D2200/0406Y02T10/40F02D41/222F02D45/00
Inventor 奥特温·兰施奥夫
Owner ROBERT BOSCH GMBH
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