DE69617196T2 - Internal combustion engine for vehicles and control methods - Google Patents

Internal combustion engine for vehicles and control methods

Info

Publication number
DE69617196T2
DE69617196T2 DE69617196T DE69617196T DE69617196T2 DE 69617196 T2 DE69617196 T2 DE 69617196T2 DE 69617196 T DE69617196 T DE 69617196T DE 69617196 T DE69617196 T DE 69617196T DE 69617196 T2 DE69617196 T2 DE 69617196T2
Authority
DE
Germany
Prior art keywords
vehicles
combustion engine
internal combustion
control methods
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69617196T
Other languages
German (de)
Other versions
DE69617196D1 (en
Inventor
Francesco Cuniberti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iveco SpA
Original Assignee
Iveco Fiat SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Iveco Fiat SpA filed Critical Iveco Fiat SpA
Application granted granted Critical
Publication of DE69617196D1 publication Critical patent/DE69617196D1/en
Publication of DE69617196T2 publication Critical patent/DE69617196T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic

Abstract

A heat engine (1) provided with a plurality of cylinders having at least one inlet valve (3), at least one exhaust valve (4) and an auxiliary valve (6) forming part of a vacuum braking device (5); the valves (3, 4, 6) are controlled by an electronic control unit (8) which, in response to an actuating signal of the vacuum braking device, prevents the injection of fuel into the cylinders (2) and varies the timing sequence from a conventional four-stroke cycle to a two-stroke cycle in which the inlet valve (3) and the auxiliary valve (6) open alternately in accordance with each dead centre of the associated cylinder (2). <IMAGE>
DE69617196T 1995-08-11 1996-08-08 Internal combustion engine for vehicles and control methods Expired - Lifetime DE69617196T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT95TO000682A IT1280907B1 (en) 1995-08-11 1995-08-11 ENDOTHERMAL ENGINE FOR A VEHICLE AND RELATED CONTROL METHOD

Publications (2)

Publication Number Publication Date
DE69617196D1 DE69617196D1 (en) 2002-01-03
DE69617196T2 true DE69617196T2 (en) 2002-07-18

Family

ID=11413789

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69617196T Expired - Lifetime DE69617196T2 (en) 1995-08-11 1996-08-08 Internal combustion engine for vehicles and control methods

Country Status (5)

Country Link
EP (1) EP0791729B1 (en)
AT (1) ATE209296T1 (en)
DE (1) DE69617196T2 (en)
ES (1) ES2168418T3 (en)
IT (1) IT1280907B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1920143B1 (en) 2005-08-18 2010-10-13 Renault Trucks Control method for the intake and exhaust valves of an engine and internal combustion engine comprising such valves
FR2900200B1 (en) * 2006-04-19 2009-06-12 Peugeot Citroen Automobiles Sa METHOD OF CREATING A NEGATIVE TORQUE BY AN INTERNAL COMBUSTION ENGINE AND ADJUSTING THE VALUE OF SAID TORQUE
FR2900199B1 (en) * 2006-04-19 2008-06-27 Peugeot Citroen Automobiles Sa METHOD OF CREATING A NEGATIVE TORQUE BY AN INTERNAL COMBUSTION ENGINE AND ADJUSTING THE VALUE OF SAID TORQUE
SE538553C2 (en) 2014-10-15 2016-09-13 Freevalve Ab Internal combustion engine and method of engine braking of such an internal combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB307753A (en) * 1928-03-12 1930-06-11 Motorwagenfabrik Berna A.G.
DE577588C (en) * 1930-06-11 1933-06-01 Motorwagenfabrik Berna A G Brake control for four-stroke diesel vehicle engines
SE466320B (en) * 1989-02-15 1992-01-27 Volvo Ab PROCEDURES AND DEVICE FOR ENGINE BRAKING WITH A FIREWORKS ENGINE
DE4125831A1 (en) * 1991-08-03 1992-10-15 Daimler Benz Ag IC engine brake - has cylinder venting valve and solenoid driven valve with spring closure

Also Published As

Publication number Publication date
ITTO950682A0 (en) 1995-08-11
ITTO950682A1 (en) 1997-02-11
IT1280907B1 (en) 1998-02-11
ES2168418T3 (en) 2002-06-16
EP0791729A1 (en) 1997-08-27
DE69617196D1 (en) 2002-01-03
EP0791729B1 (en) 2001-11-21
ATE209296T1 (en) 2001-12-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: IVECO S.P.A., TURIN, IT