EP2016268A1 - Abgasbremssteuerung - Google Patents

Abgasbremssteuerung

Info

Publication number
EP2016268A1
EP2016268A1 EP07748425A EP07748425A EP2016268A1 EP 2016268 A1 EP2016268 A1 EP 2016268A1 EP 07748425 A EP07748425 A EP 07748425A EP 07748425 A EP07748425 A EP 07748425A EP 2016268 A1 EP2016268 A1 EP 2016268A1
Authority
EP
European Patent Office
Prior art keywords
engine
parameter
exhaust
registered
exhaust gas
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.)
Withdrawn
Application number
EP07748425A
Other languages
English (en)
French (fr)
Other versions
EP2016268A4 (de
Inventor
Klas Telborn
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.)
Scania CV AB
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
Publication of EP2016268A1 publication Critical patent/EP2016268A1/de
Publication of EP2016268A4 publication Critical patent/EP2016268A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F02D41/045—Detection of accelerating or decelerating state
    • 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
    • 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
    • F02D41/145—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 with determination means using an estimation
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1409—Introducing closed-loop corrections characterised by the control or regulation method using at least a proportional, integral or derivative controller
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0406—Intake manifold pressure
    • 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
    • F02D41/1446—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 exhaust temperatures

Definitions

  • Exhaust brake systems for combustion-engine vehicles typically include a valve, which is arranged in the engine's exhaust passage. When the exhaust brake is activated, the valve is controlled to a position wherein it obstructs the exhaust gasses flowing from the engine. Thereby, the pistons in the engine experience an increased resistance during the engine's exhaust stroke, and consequently a brake effect occurs.
  • the object is achieved by the initially described exhaust brake system, wherein the system includes a second pressure sensor adapted to register an input pressure in an air intake to the engine.
  • the brake torque regulator includes a processing means, which is adapted to receive the registered input pressure, receive an engine para- meter reflecting a speed of the engine, model a gas exchange work performed by the engine and generate a reference parameter based on this model.
  • the brake torque regulator also includes a control means that is adapted to receive at least the reference parameter, and based thereon, produce the control sig- nal. I.e., the control signal is produced, directly or indirectly, based on the registered exhaust gas pressure, the reference parameter and a set value, which designates a desired brake torque.
  • the object is achie- ved by the method described initially, wherein an input pressure is registered in an air intake to the engine; an engine parameter is registered that reflects a speed of the engine, and a reference parameter is generated based on a model of a gas exchange work performed by the engine and in response to the registered input pressure and the registered engine parameter. Finally, the control signal is produced on the further basis of the reference parameter.
  • the processing means 120 is adapted to receive an input pressure P in registered by the second pressure sensor 145, which is arranged in the air intake 140. Additionally, the processing means 120 is adapted to receive an engine parameter rpm reflecting a speed of the engine 1 10 (e.g. the number of revolutions per unit time performed by the engine's 1 10 crank axle). In response to these parameters rpm, P in and T req , the processing means 120 is adapted to gene- rate a reference parameter P m-mod -
  • the processing means 120 is adapted to model a gas exchange work being performed by the engine 1 10.
  • the processing means 120 produces the refe- rence parameter in the form of a first modeled parameter P m - mOd that reflects an estimation of the exhaust gas pressure in the exhaust conduit 150 between the engine 1 10 and the valve 135.
  • the first modeled parameter P m - moc i is produced based on the engine speed rpm, the exhaust gas pressure P m and the set value T req .
  • Figure 2 shows a block diagram over an exhaust brake system according to a second embodiment of an exhaust brake system according to the invention. All reference labels occurring in Figure 2, which are identical to those used Figure 1 designate the same entities, parameters and variables as those described above with reference to this figure.
  • the model of the gas exchange work performed by the engine 1 10 may derived by applying a polynomial regression algorithm to least-square fit a set of measurement data from the engine 1 10.
  • the resulting polynomial includes a respective term pertaining to the input pressure P in , the exhaust gas pressure P m and the engine speed rpm.
  • the polynomial further includes an offset term and possibly a number of cross terms and/or relevant temperature parameters.
  • T m designates the temperature in the exhaust conduit 150 between the engine 1 10 and the valve 135.
  • a step 460 produces a control signal for the ad- justable valve, so as to obstruct the exhaust gasses from the engine, and thus accomplish a brake torque during the engine's exhaust stroke to counteract a drive torque produced during the engine's combustion phase.
  • the control signal is produced based on the reference parameter and either of the exhaust gas pressure and the set value. Specifically, (i) if the reference parameter is based on the input pressure, the engine parameter and set value, the exhaust gas pressure is used; and (ii) if the reference parameter is based on the input pressure, the exhaust gas pressure and the engine parameter, the set value is used.
  • the procedure is preferably executed repeatedly, or continuously, such that for examp- Ie while the step 460 operates on data registered at a particular instance t, the steps 410, 420, 430 and 440 operate on data registered at a somewhat later instance t + ⁇ t.

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)
EP07748425.1A 2006-05-09 2007-04-24 Abgasbremssteuerung Withdrawn EP2016268A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0601033A SE529870C2 (sv) 2006-05-09 2006-05-09 Avgasbromsstyrning
PCT/SE2007/050264 WO2007129970A1 (en) 2006-05-09 2007-04-24 Exhaust gas brake control

Publications (2)

Publication Number Publication Date
EP2016268A1 true EP2016268A1 (de) 2009-01-21
EP2016268A4 EP2016268A4 (de) 2015-01-14

Family

ID=38668003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07748425.1A Withdrawn EP2016268A4 (de) 2006-05-09 2007-04-24 Abgasbremssteuerung

Country Status (3)

Country Link
EP (1) EP2016268A4 (de)
SE (1) SE529870C2 (de)
WO (1) WO2007129970A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101484677B (zh) * 2006-07-13 2012-10-10 沃尔沃拉斯特瓦格纳公司 用于操作内燃发动机制动器的方法和系统
WO2010068146A1 (en) * 2008-12-12 2010-06-17 Volvo Lastvagnar Ab Diagnostic method and apparatus for an exhaust pressure regulator
AT510237B1 (de) * 2010-07-26 2015-12-15 MAN Truck & Bus Österreich AG Verfahren zur motorbremsung
AT510236B1 (de) * 2010-07-26 2015-12-15 MAN Truck & Bus Österreich AG Verfahren zur motorbremsung
US11014547B1 (en) * 2019-12-09 2021-05-25 GM Global Technology Operations LLC Exhaust brake torque systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808832A1 (de) * 1998-03-03 1999-09-09 Daimler Chrysler Ag Verfahren zur Regelung des Ladeluftmassenstroms einer aufgeladenen Brennkraftmaschine
WO2002086300A1 (en) * 2001-04-20 2002-10-31 Jenara Enterprises Ltd. Apparatus and control for variable exhaust brake
US20020174654A1 (en) * 2001-05-22 2002-11-28 Zhou Yang Method and system for engine braking in an internal combustion engine with exhaust pressure regulation and turbocharger control

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9611015D0 (en) * 1996-05-25 1996-07-31 Holset Engineering Co Variable geometry turbocharger control
DE19732642C2 (de) * 1997-07-29 2001-04-19 Siemens Ag Einrichtung zum Steuern einer Brennkraftmaschine
DE19814572B4 (de) * 1998-04-01 2008-05-15 Daimler Ag Verfahren und Bremseinrichtung für einen Abgasturbolader mit variabler Turbinengeometrie

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808832A1 (de) * 1998-03-03 1999-09-09 Daimler Chrysler Ag Verfahren zur Regelung des Ladeluftmassenstroms einer aufgeladenen Brennkraftmaschine
WO2002086300A1 (en) * 2001-04-20 2002-10-31 Jenara Enterprises Ltd. Apparatus and control for variable exhaust brake
US20020174654A1 (en) * 2001-05-22 2002-11-28 Zhou Yang Method and system for engine braking in an internal combustion engine with exhaust pressure regulation and turbocharger control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007129970A1 *

Also Published As

Publication number Publication date
EP2016268A4 (de) 2015-01-14
SE529870C2 (sv) 2007-12-18
SE0601033L (sv) 2007-11-10
WO2007129970A1 (en) 2007-11-15

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