ClassID:

166916

G01L23/226 - CPC Classification

Classification description:

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 using specific filtering

Recent Application in this class:
#1
20210341347
2021-11-04

PRESSURE DETECTION SIGNAL PROCESSING DEVICE, ENGINE CONTROL SYSTEM, AND PROGRAM

#2
20210040930
2021-02-11

Method and system for combustion control in a combustion chamber of an internal combustion engine

#3
20200347794
2020-11-05

Method and device for controlling knocking in an internal combustion engine

#4
20190017487
2019-01-17

System and method for valve event detection and control

#5
20170212000
2017-07-27

Method and device for processing a signal supplied by a sensor for measuring the pressure existing in a cylinder

#6
20170101944
2017-04-13

Engine control unit

#7
20160265454
2016-09-15

Systems and methods to distinguish engine knock from piston slap

#8
20160123841
2016-05-05

Method for processing a voltage signal relating to the pressure prevailing in a combustion chamber of a cylinder of an internal combustion engine

#9
20160084174
2016-03-24

System and method for controlling the performance of an engine

#10
20150226626
2015-08-13

Method for processing a signal of a pressure measuring device inside an internal combustion engine

#11
20140338433
2014-11-20

Method for detecting detonation phenomena in an internal combustion engine

#12
20140041439
2014-02-13

Knock control apparatus for an internal combustion engine

#13
20130060451
2013-03-07

Abnormal combustion detection apparatus and control unit of internal combustion engine

#14
20120296558
2012-11-22

Control unit of internal combustion engine

#15
20120022796
2012-01-26

Apparatus and method for detection of mechanical inputs