ClassID:

137504

F01L2800/14 - CPC Classification

Classification description:

Methods of operation using a variable valve timing mechanism Determining a position, e.g. phase or lift

Recent Application in this class:
#1
20240247599
2024-07-25

Valve train device

#2
20230193843
2023-06-22

Control device

#3
20220325642
2022-10-13

Valve opening and closing timing control apparatus device

#4
20220259991
2022-08-18

Internal combustion engine and method for operating an electromechanical camshaft adjuster

#5
20220220870
2022-07-14

Method for operating an electromechanical camshaft phaser

#6
20220003133
2022-01-06

Valve open-close timing control device

#7
20200370451
2020-11-26

Electric variable cam timing control device

#8
20200277926
2020-09-03

CAMSHAFT PHASER INCLUDING A HEAT-TREATED TARGET WHEEL

#9
20200173380
2020-06-04

Method for alternate control of CVVD malfunction and CVVD system thereof

#10
20200063674
2020-02-27

Monitoring deviations occurring in the valve drive of an internal combustion engine, and electronic engine control units for executing such methods

#11
20200040830
2020-02-06

Method for the combined identification of phase differences of the inlet valve stroke and of the outlet valve stroke

#12
20200040829
2020-02-06

Combined identification of an inlet valve stroke phase difference and an outlet valve stroke phase difference of an internal combustion engine with the aid of lines of the same amplitude

#13
20190353558
2019-11-21

Device and method for cold testing engine component operation

#14
20190331032
2019-10-31

Method and system for variable displacement engine diagnostics

#15
20190055861
2019-02-21

Device for controlling at least one valve in an internal combustion engine

#16
20180163645
2018-06-14

Method for predicting a phase position of a camshaft

#17
20180051645
2018-02-22

Device and method for detecting abnormality in rotation phase detection device, and rotation position control device using same

#18
20180045088
2018-02-15

Variable valve system

#19
20180003113
2018-01-04

Continuously variable valve duration system and operating method thereof

#20
20170342872
2017-11-30

Methods and system for operating an exhaust valve of an internal combustion engine

#21
20170145927
2017-05-25

Two-step valvetrain preposition control strategy

#22
20170138275
2017-05-18

Control device for internal combustion engine and method of controlling internal combustion engine

#23
20170122140
2017-05-04

Variable valve timing apparatus

#24
20170096918
2017-04-06

Apparatus and method of controlling electronic continuously variable valve timing

#25
20170081992
2017-03-23

METHOD AND DEVICE FOR DIAGNOSE OF VALVES OF AN INTERNAL COMBUSTION ENGINE

#26
20170037745
2017-02-09

Continuous variable valve timing control device and control method therefor

#27
20170023699
2017-01-26

Method and device for inspecting a valve drive in an internal combustion engine

#28
20160169124
2016-06-16

Controller for internal combustion engine

#29
20160169057
2016-06-16

Continuous variable valve duration apparatus and control method using the same

#30
20150275711
2015-10-01

Engine control systems and methods for transmission upshifts

#31
20150152792
2015-06-04

Determination of a value for a valve lift of a valve of an individual cylinder of an internal combustion engine with a plurality of cylinders

#32
20140069359
2014-03-13

Variable valve timing device

#33
20140041607
2014-02-13

Control system for internal combustion engine

#34
20130325290
2013-12-05

System and method for calibrating a valve lift sensor and evaluating a valve lift sensor and a hydraulic valve actuator

#35
20130285590
2013-10-31

Reference angle detecting device

#36
20130125847
2013-05-23

Variable cam control in an engine

#37
20120247411
2012-10-04

System and method for cam phaser control in an engine

#38
20120158267
2012-06-21

Valve working angle variable system

#39
20120143466
2012-06-07

Method and device for controlling an internal combustion engine

#40
20120116646
2012-05-10

Method for compensating for valve lift deviation between engines equipped with CVVL mechanism

#41
20100263438
2010-10-21

Camshaft position measurement and diagnosis

#42
20100262355
2010-10-14

METHOD AND DEVICE FOR EXAMINING A VALVE LIFT SWITCHING PROCESS

#43
20090276145
2009-11-05

Synchronization device for an engine

#44
20090183701
2009-07-23

Process for adjusting the angular position of the camshaft of a reciprocating internal combustion engine relative to the crankshaft

#45
20090141289
2009-06-04

Method for determining at least the position of a movable part of a drive unit such as an internal combustion engine or the similar

#46
20080127936
2008-06-05

Variable pitch timing chain/belt for camshaft to crankshaft correlation

#47
20070239343
2007-10-11

Failure detection apparatus for variable valve timing and lift control system of internal combustion engine

#48
20060081203
2006-04-20

Variable valve timing controller for internal combustion engine

#49
20050223787
2005-10-13

Engine crankshaft position recognition and tracking method applicable to cam and crankshaft signals with arbitrary patterns

#50
20050193968
2005-09-08

Learning apparatus and method for variable valve control of internal combustion engine

#51
20050081611
2005-04-21

Real-time control system and method of using same

#52
20050072406
2005-04-07

Engine control advantageously using humidity

#53
20050044934
2005-03-03

Method for diagnosing incorrect valve lift adjustment in an internal combustion engine

#54
18507667
2024-08-06

Vehicle system

#55
17143079
2022-04-19

Methods and systems for engine valve timing or lift adjustment