DE3328219A1 - Device for reducing the braking torque of internal combustion engines, especially diesel engines, in motor vehicles in overrun conditions - Google Patents

Device for reducing the braking torque of internal combustion engines, especially diesel engines, in motor vehicles in overrun conditions

Info

Publication number
DE3328219A1
DE3328219A1 DE19833328219 DE3328219A DE3328219A1 DE 3328219 A1 DE3328219 A1 DE 3328219A1 DE 19833328219 DE19833328219 DE 19833328219 DE 3328219 A DE3328219 A DE 3328219A DE 3328219 A1 DE3328219 A1 DE 3328219A1
Authority
DE
Germany
Prior art keywords
reducing
motor vehicles
internal combustion
braking torque
engines
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Withdrawn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
DE19833328219
Other languages
German (de)
Inventor
Johannes 8949 Dirlewang Guggenmos
Helmut 8000 München Wick
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE19833328219 priority Critical patent/DE3328219A1/en
Priority to DE8383109049T priority patent/DE3376666D1/en
Priority to AT83109049T priority patent/ATE34430T1/en
Priority to EP83109049A priority patent/EP0104539B1/en
Publication of DE3328219A1 publication Critical patent/DE3328219A1/en
Withdrawn legal-status Critical Current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
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D41/0005—Controlling intake air during deceleration
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/406—Electrically controlling a diesel injection pump
    • F02D41/407—Electrically controlling a diesel injection pump of the in-line type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02D2041/0022—Controlling intake air for diesel engines by throttle control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/18—Control of the engine output torque
    • 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
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/1055—Details of the valve housing having a fluid by-pass
    • 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 Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

In the case of a device for reducing the braking torque of internal combustion engines, especially diesel engines, in motor vehicles in overrun conditions, in which the power output is controlled by way of the engine speed, the power output is monitored by means of a torque sensor and in the event of a deviation from the appropriate reference values, corrected by way of a control circuit.

Description

Vorrichtung zum Reduzieren des Bremsmomentes von Brenn-Device for reducing the braking torque of combustion

kraftmaschinen, insbesondere Dieselmotoren, in Kraftfahrzeugen beim Schubbetrieb Die Erfindung bezieht sich auf eine Vorrichtung zum Reduzieren des Bremsmomentes von Brennkraftmaschinen, insbesondere Dieselmotoren, in Kraftfahrzeugen beim Schubbetrieb, bei der die Leistungsabgabe beim Schubbetrieb in Abhängigkeit von der Maschinendrehzahl gesteuert ist, nach Patent ... (Patentanmeldung P 32 35 619.6).engines, in particular diesel engines, in motor vehicles at Overrun The invention relates to a device for reducing the Braking torque of internal combustion engines, in particular diesel engines, in motor vehicles during overrun, in which the power output during overrun as a function of is controlled by the machine speed, according to patent ... (patent application P 32 35 619.6).

Der Erfindung liegt die Aufgabe zugrunde, die beim Hauptpatent vorgesehene Steuerung dahingehend zu verbessern, daß sie auch langfristig bzw. bei einer Störung der Steuerungsorgane das Bremsmoment reduziert.The invention is based on the object provided for in the main patent To improve control in such a way that it can also be used in the long term or in the event of a malfunction the control system reduces the braking torque.

Die Erfindung löst diese Aufgabe dadurch, daß die Steuerung der Leistungsabgabe innerhalb eines Regelkreises erfolgt, bei dem das Ist-Maschinenmoment mit dem Soll-Maschinenmoment verglichen und bei fehlender Übereinstimmung mit diesem in Übereinstimmung gebracht wird.The invention solves this problem in that the control of the power output takes place within a control loop, in which the actual machine torque with the target machine torque compared and, in the event of a lack of agreement, brought into agreement with this will.

Durch die Bestimmung des Ist-Maschinenmoments, beispielsweise mit Hilfe eines bekannten, an der Kardanwelle angeordneten induktiven Momentensensors kann auf einfache Weise das tatsächlich abgegebene Moment und die sich durch Multiplikation des Moments mit der Drehzahl ergebende tatsächlich abgegebene Leistung bestimmt werden.By determining the actual machine torque, for example with With the help of a known inductive torque sensor arranged on the cardan shaft can in a simple way the actually delivered moment and which is obtained by multiplication of the torque with the speed resulting actually delivered power is determined will.

Stimmen diese Leistung bzw. dieses Moment mit den entsprechenden Sollwerten z.B. aufgrund einer Störung oder von im Langzeitbetrieb auftretenden Toleranzen der Steuerungsorgane nicht überein, so verhindert der Regelkreis das Auftreten eines zu großen Bremsmomentes.Do this power or this moment match the corresponding setpoints e.g. due to a malfunction or tolerances occurring in long-term operation of the control organs do not match, the control loop prevents the occurrence of a braking torque too great.

Claims (1)

Patentanspruch: Vorrichtung zum Reduzieren des Bremsmomentes von Brennkraftmaschinen, insbesondere Dieselmotoren, in Kraftfahrzeugen beim Schubbetrieb, bei der die Leistungsabgabe beim Schubbetrieb in Abhängigkeit von der Maschinendrehzahl gesteuert ist, nach Patent ... (Patentanmeldung P 32 35 619.6), dadurch gekennzeichnet, daß die Steuerung der Leistungsabgabe innerhalb eines Regelkreises erfolgt, bei dem das Ist-Maschinenmoment mit dem Soll-Maschinenmoment verglichen und bei fehlender übereinstimmung mit diesem in übereinstimmung gebracht wird.Claim: Device for reducing the braking torque of internal combustion engines, in particular diesel engines, in motor vehicles during overrun, in which the power output is controlled in overrun mode depending on the engine speed, according to Patent ... (patent application P 32 35 619.6), characterized in that the control the power output takes place within a control loop in which the actual machine torque compared with the target machine torque and if there is no agreement with this is brought into conformity.
DE19833328219 1982-09-25 1983-08-04 Device for reducing the braking torque of internal combustion engines, especially diesel engines, in motor vehicles in overrun conditions Withdrawn DE3328219A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19833328219 DE3328219A1 (en) 1983-08-04 1983-08-04 Device for reducing the braking torque of internal combustion engines, especially diesel engines, in motor vehicles in overrun conditions
DE8383109049T DE3376666D1 (en) 1982-09-25 1983-09-14 Apparatus for reducing the resistant moment of combustion engines, especially diesel engines, in decelerating lorries
AT83109049T ATE34430T1 (en) 1982-09-25 1983-09-14 DEVICE FOR REDUCING THE BRAKING TORQUE OF INTERNAL COMBUSTION ENGINES, PARTICULARLY DIESEL ENGINES, IN MOTOR VEHICLES DURING OVERRUN.
EP83109049A EP0104539B1 (en) 1982-09-25 1983-09-14 Apparatus for reducing the resistant moment of combustion engines, especially diesel engines, in decelerating lorries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833328219 DE3328219A1 (en) 1983-08-04 1983-08-04 Device for reducing the braking torque of internal combustion engines, especially diesel engines, in motor vehicles in overrun conditions

Publications (1)

Publication Number Publication Date
DE3328219A1 true DE3328219A1 (en) 1985-02-21

Family

ID=6205808

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833328219 Withdrawn DE3328219A1 (en) 1982-09-25 1983-08-04 Device for reducing the braking torque of internal combustion engines, especially diesel engines, in motor vehicles in overrun conditions

Country Status (1)

Country Link
DE (1) DE3328219A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942862A1 (en) * 1989-12-23 1991-06-27 Bosch Gmbh Robert METHOD FOR LIMITING THE MOTOR TOWING TORQUE
US5313922A (en) * 1989-12-23 1994-05-24 Robert Bosch Gmbh Method for controlling a flow of fuel to an engine of a vehicle during overrun operation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2139230A1 (en) * 1971-08-05 1973-02-15 Teldix Gmbh ARRANGEMENT FOR SELF-INFLUENCING THE ENGINE TORQUE OF A VEHICLE
DE2842389A1 (en) * 1978-09-29 1980-04-17 Bosch Gmbh Robert DEVICE FOR ADJUSTING THE TORQUE OF AN INTERNAL COMBUSTION ENGINE
DE3205079A1 (en) * 1981-02-16 1982-09-09 Nippondenso Co., Ltd., Kariya, Aichi FUEL INJECTION SYSTEM WITH ELECTRONIC CONTROL

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2139230A1 (en) * 1971-08-05 1973-02-15 Teldix Gmbh ARRANGEMENT FOR SELF-INFLUENCING THE ENGINE TORQUE OF A VEHICLE
DE2842389A1 (en) * 1978-09-29 1980-04-17 Bosch Gmbh Robert DEVICE FOR ADJUSTING THE TORQUE OF AN INTERNAL COMBUSTION ENGINE
DE3205079A1 (en) * 1981-02-16 1982-09-09 Nippondenso Co., Ltd., Kariya, Aichi FUEL INJECTION SYSTEM WITH ELECTRONIC CONTROL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942862A1 (en) * 1989-12-23 1991-06-27 Bosch Gmbh Robert METHOD FOR LIMITING THE MOTOR TOWING TORQUE
US5313922A (en) * 1989-12-23 1994-05-24 Robert Bosch Gmbh Method for controlling a flow of fuel to an engine of a vehicle during overrun operation
DE3942862C2 (en) * 1989-12-23 2001-04-12 Bosch Gmbh Robert Procedure for engine drag torque limitation

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