[go: up one dir, main page]

Wu, 2007 - Google Patents

A real time statistical method for engine knock detection

Wu, 2007

Document ID
15486750368300445001
Author
Wu G
Publication year

External Links

Snippet

The traditional method of engine knock detection is to compare the knock intensity with a predetermined threshold. The calibration of this threshold is complex and difficult. A statistical knock detection method is proposed in this paper to reduce the effort of calibration …
Continue reading at www.sae.org (other versions)

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
    • G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
    • G01L23/225—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines circuit arrangements therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing of internal-combustion engines, e.g. diagnostic testing of piston engines
    • G01M15/12—Testing of internal-combustion engines, e.g. diagnostic testing of piston engines by monitoring vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/027—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors

Similar Documents

Publication Publication Date Title
Naber et al. Analysis of combustion knock metrics in spark-ignition engines
US8499623B2 (en) Abnormal combustion detection method for internal-combustion engines from combustion indicator distribution modelling
US7113861B2 (en) System and method for diagnosing and calibrating internal combustion engines
Wu A real time statistical method for engine knock detection
Puzinauskas Examination of methods used to characterize engine knock
US6742499B2 (en) Method and apparatus for detecting abnormal combustion conditions in lean burn reciprocating engines
Burgdorf et al. Comparison of cylinder pressure based knock detection methods
US7290442B2 (en) Method and system of estimating MBT timing using in-cylinder ionization signal
US20060086177A1 (en) Knocking detection
CN106030273B (en) Knock Intensity Measurement
US7257482B2 (en) Misfire detection apparatus
WO2007092438A2 (en) Knock detection system and method
Malaczynski et al. Ion-sense-based real-time combustion sensing for closed loop engine control
US7415347B2 (en) Combustion knock detection and control through statistical characterization of knock levels
Hellring et al. Spark advance control using the ion current and neural soft sensors
Luo et al. Stochastic knock detection, control, software integration, and evaluation on a V6 spark-ignition engine under steady-state operation
US5153834A (en) Method and apparatus for detecting a misfire in a combustion chamber of an internal combustion engine
DE112017000262T5 (en) Knockferfassungsvorrichtung and control device for an internal combustion engine
Brecq et al. Modeling of in-cylinder pressure oscillations under knocking conditions: introduction to pressure envelope curve
US6247448B1 (en) Closed loop spark control method and system utilizing a combustion event sensor to determine borderline knock
Gazis et al. Computationally inexpensive methods of ion current signal manipulation for predicting the characteristics of engine in-cylinder pressure
Abhijit et al. Ionization signal response during combustion knock and comparison to cylinder pressure for SI engines
US7461545B2 (en) Method and apparatus for monitoring cyclic variability in reciprocating engines
Sellnau et al. Development of a practical tool for residual gas estimation in IC engines
Shayestehmanesh et al. Stochastic modeling and prediction of IMEP for closed loop knock control performance assessment