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

Method and system for providing engine knock detection dynamic gains

An engine and knocking technology, applied in the direction of electric engine control automatic control, engine components, combustion engines, etc., can solve the problems of inability to detect engine knocking, engine fuel efficiency loss, engine knocking, etc., to improve engine knocking Detect, improve fuel consumption, improve the effect of signal-to-noise ratio

Pending Publication Date: 2021-12-24
FORD GLOBAL TECH LLC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Direct fuel injectors may tend to produce noise as components of the direct fuel injector move as the direct fuel injector opens and closes
Similarly, poppet valve closing, variable cylinder displacement operation, and engine noise associated with rapid engine speed changes and load changes can produce noise that can make accurate detection of knock more difficult
Specifically, background engine noise levels may change rapidly such that engine knock may not be detected
Alternatively, background engine noise levels may change, leading to false indications of engine knock, which may result in a loss of engine fuel efficiency

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 system for providing engine knock detection dynamic gains
  • Method and system for providing engine knock detection dynamic gains
  • Method and system for providing engine knock detection dynamic gains

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The following description relates to systems and methods include an engine knock control system for operating. The engine may also include one or more sources of noise, the noise source may result in vibration of the engine, the engine so as to change the reference background or noise level. The engine may be figure 1 Of the type shown in FIG. figure 2 and image 3 It is shown in each portion of the engine knock control system of the prior art. Figure 4 to 6 It is shown in each portion of the engine knock control system according to the present description. Figure 7 Shows a method for operating the engine knock control system.

[0014] Turning now to the drawings, figure 1 Depicts an exemplary internal combustion engine 10 of the cylinder 14, the internal combustion engine 10 may be included in the vehicle 5. The engine 10 may be a variable displacement engine (VDE) as further described herein. Engine 10 may be at least partially comprises a control system 130 by the control...

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

Methods and systems for adjusting engine knock control system dynamic gains are presented. In one example, a plurality of tables or functions output gain values, each of which is adjusted via a unique weighting factor. A rectified and integrated engine knock sensor level is adjusted according to a sum of weighted gain output values of the plurality of tables or functions.

Description

Technical field [0001] The present application relates to an internal combustion engine knock detection system and method and in response thereto. Background technique [0002] An internal combustion engine knock control system may be rectifying and integrating the output of a knock sensor, to determine the presence or absence of engine knocking. It can also filter the knock sensor signal is rectified and integrated to generate a reference signal or background noise level of the engine. May be divided by the background noise level signal via an engine knock sensor signal is rectified and filtered to determine the knock intensity signal. Finally, the knock intensity signal with a threshold value of the knocking level may be compared to determine the presence or absence of engine knocking. If it detects engine knock, the engine controller can take mitigation measures to limit engine knock. For example, the controller may delay the possibility of engine spark timing to reduce engine...

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 Applications(China)
IPC IPC(8): F02D35/02F02P5/04F02P5/152
CPCF02D35/027F02P5/045F02P5/152Y02T10/40F02D41/401F02D2041/389F02D2200/101F02D41/2422F02D2041/001F02D13/0203G01M15/12
Inventor 兰尼·基万李·麦奎因克里斯·格鲁格拉
Owner FORD GLOBAL TECH LLC
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com