SE0700761L - Exhaust Brake Control - Google Patents

Exhaust Brake Control

Info

Publication number
SE0700761L
SE0700761L SE0700761A SE0700761A SE0700761L SE 0700761 L SE0700761 L SE 0700761L SE 0700761 A SE0700761 A SE 0700761A SE 0700761 A SE0700761 A SE 0700761A SE 0700761 L SE0700761 L SE 0700761L
Authority
SE
Sweden
Prior art keywords
engine
exhaust gas
threshold level
control signal
adjustable valve
Prior art date
Application number
SE0700761A
Other languages
Swedish (sv)
Other versions
SE530717C2 (en
Inventor
Klas Telborn
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE0700761A priority Critical patent/SE530717C2/en
Priority to PCT/SE2008/050305 priority patent/WO2008118073A1/en
Publication of SE0700761L publication Critical patent/SE0700761L/en
Publication of SE530717C2 publication Critical patent/SE530717C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
    • F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
    • F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1448—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an exhaust gas pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
    • F02D9/06—Exhaust brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
    • F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
    • F02D41/0055—Special engine operating conditions, e.g. for regeneration of exhaust gas treatment apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

An exhaust brake system for a motor vehicle, comprising an adjustable valve (107) in a recirculation passage (115) connecting an exhaust gas conduit (150) with an air intake (105) to the engine (110), and a control unit (120) that produces a first control signal (Cl) in response to a set value (Treq) designating a desired brake -torque, the control unit being adapted to: check if the set value (Treq) designates a brake-torque below a first threshold level and the engine (110) is controlled to a drive-torque below a second threshold level, and if both these conditions are fulfilled, generate a second control signal (C2) such that the adjustable valve (107) is adjusted to a closed position, generate a third control signal (C3) such that the turbo unit (160) opens up maximally with respect to the exhaust gasses (Eout), test if the exhaust gas pressure level (Pm) exceeds a third threshold level, and if so, produces an alarm triggering signal (A) in respect of a first adjustable valve (135) that obstructs the exhaust gas from the engine.
SE0700761A 2007-03-27 2007-03-27 Exhaust Brake Control SE530717C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0700761A SE530717C2 (en) 2007-03-27 2007-03-27 Exhaust Brake Control
PCT/SE2008/050305 WO2008118073A1 (en) 2007-03-27 2008-03-18 Exhaust gas brake control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0700761A SE530717C2 (en) 2007-03-27 2007-03-27 Exhaust Brake Control

Publications (2)

Publication Number Publication Date
SE0700761L true SE0700761L (en) 2008-08-19
SE530717C2 SE530717C2 (en) 2008-08-19

Family

ID=39684020

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0700761A SE530717C2 (en) 2007-03-27 2007-03-27 Exhaust Brake Control

Country Status (2)

Country Link
SE (1) SE530717C2 (en)
WO (1) WO2008118073A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT510237B1 (en) * 2010-07-26 2015-12-15 MAN Truck & Bus Österreich AG METHOD FOR MOTOR BRAKING
US20130008417A1 (en) * 2011-07-06 2013-01-10 Caterpillar Inc. Control system for engine with exhaust gas recirculation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19814572B4 (en) * 1998-04-01 2008-05-15 Daimler Ag Method and braking device for a turbocharger with variable turbine geometry
JP2001280173A (en) * 2000-03-31 2001-10-10 Nissan Diesel Motor Co Ltd Auxiliary brake device
JP2004324417A (en) * 2003-04-21 2004-11-18 Isuzu Motors Ltd Exhaust gas recirculation system

Also Published As

Publication number Publication date
WO2008118073A1 (en) 2008-10-02
SE530717C2 (en) 2008-08-19

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