DE3539407A1 - COMPUTER SYSTEM WITH TWO PROCESSORS - Google Patents
COMPUTER SYSTEM WITH TWO PROCESSORSInfo
- Publication number
- DE3539407A1 DE3539407A1 DE19853539407 DE3539407A DE3539407A1 DE 3539407 A1 DE3539407 A1 DE 3539407A1 DE 19853539407 DE19853539407 DE 19853539407 DE 3539407 A DE3539407 A DE 3539407A DE 3539407 A1 DE3539407 A1 DE 3539407A1
- Authority
- DE
- Germany
- Prior art keywords
- processors
- computer system
- processor
- control
- target
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2035—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant without idle spare hardware
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/266—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the computer being backed-up or assisted by another circuit, e.g. analogue
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2023—Failover techniques
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2023—Failover techniques
- G06F11/203—Failover techniques using migration
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Automation & Control Theory (AREA)
- Quality & Reliability (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
Description
Die Erfindung geht aus von einem Rechnersystem mit zwei Prozessoren zur Regelung von Kenngrößen einer Brennkraftmaschine nach der Gattung des Hauptanspruchs. Es sind Rechnersysteme mit einer Funktionsaufteilung bekannt, bei denen ein Hauptrechner im Normalbetrieb, der den störungsfreien Zustand darstellt, die gesamte Rechnerbelastung für die erforderlichen Steuer- und Regelfunktionen übernimmt. Ein zweiter Rechner, der ausschließlich als Notrechner dient, kann bei Ausfall des Hauptrechners Notfunktionen übernehmen und damit einen eingeschränkten Betrieb aufrechterhalten. Da jedoch der Hauptrechner für den Normalbetrieb sämtliche Rechnerfunktionen, beispielsweise zur Bestimmung der Einspritzmenge und des Einspritzzeitpunkts in Abhängigkeit von der Drehzahl und der Stellung des Fußfahrgebers, zu übernehmen hat, ist für den Hauptrechner eine entsprechend große Speicher- und Rechenkapazität erforderlich. Der außerdem notwendige Notrechner kommt nur im Störungsfall zum Einsatz, weshalb dieser Notrechner im allgemeinen ungenutzt bleibt.The invention is based on a computer system with two Processors for controlling parameters of an internal combustion engine according to the genus of the main claim. It computer systems with a division of functions are known, where a main computer in normal operation, which the trouble-free State represents the total computer load for the necessary control functions takes over. A second computer that is used exclusively as Emergency computer serves, can emergency functions in the event of a failure of the main computer take over and thus a restricted operation maintain. However, since the main computer for normal operation all computer functions, for example for determining the injection quantity and the injection timing depending on the speed and the The position of the pedestrian to take over is for the main computer a correspondingly large storage and Computing capacity required. The also necessary Emergency computers are only used in the event of a fault, which is why this emergency computer generally remains unused.
Das erfindungsgemäße Rechnersystem mit den Merkmalen des Hauptanspruchs hat den Vorteil aufgrund der Verteilung der Rechnerbelastung im Normalbetrieb auf zwei Prozessoren, eine hohe Rechnergeschwindigkeit bei der Bestimmung wesentlicher Stellgrößen zu ermöglichen. Dabei ist es besonders vorteilhaft, wenn zur Regelung der Regelstange einer Diesel-Einspritzpumpe die Bestimmung des Sollwerts im einen Prozessor, dagegen die Berechnung der Stellgröße in Abhängigkeit von der Differenz zwischen Sollwert und Istwert im anderen Prozessor erfolgt. Durch diese Maßnahme kann die Regelgeschwindigkeit stark erhöht werden, ohne daß die übrigen Steuerungs- und Überwachungsaufgaben, die von den beiden Prozessoren durchgeführt werden müssen, beeinträchtigt würden.The computer system according to the invention with the features of Main claim has the advantage due to the distribution of the Computer load in normal operation on two processors, a high computer speed in the determination to enable essential manipulated variables. It is particularly advantageous when regulating the control rod a diesel injection pump to determine the setpoint in one processor, but the calculation of the manipulated variable depending on the difference between the setpoint and actual value is done in the other processor. Through this Measure can significantly increase the control speed without the other control and monitoring tasks, carried out by the two processors would have to be affected.
Zur Erhöhung der Betriebssicherheit werden den beiden Prozessoren die wesentlichen Betriebszustände über jeweils duplizierte Geber zugeführt. Insbesondere Drehzahlgeber, Fußfahrgeber und der die Bremsenstellung überwachende Geber können doppelt vorgesehen sein. Bei Ausfall eines dieser Geber erfolgt eine Umschaltung auf den entsprechenden anderen Geber.To increase operational safety, the two Processors the main operating states each duplicated encoder fed. In particular speed sensors, Pedal encoder and the one monitoring the brake position Donors can be provided twice. In the event of failure one of these encoders is switched to the corresponding other donor.
Zur Überwachung der Einstellung der Einspritzpumpe bzw. der Stellung der Regelstange ist ein Regelweggeber vorgesehen, der den Istwert an die Prozessoren meldet. Tritt im Regelweggeber ein Defekt auf, kann die Regelstange über einen Proportional-Differential-Verstellregler durch den Sollwert eingestellt werden. Dadurch wird zumindest näherungsweise die Regelstange dem jeweiligen Betriebszustand entsprechend eingestellt.To monitor the setting of the injection pump or a control path encoder is provided for the position of the control rod, which reports the actual value to the processors. If a defect occurs in the control path encoder, the control rod can via a proportional differential adjuster can be set by the setpoint. Thereby the control rod is at least approximately the respective Operating status set accordingly.
Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. The invention is described below with reference to a drawing illustrated embodiment explained in more detail.
Das in der Zeichnung dargestellte Blockschaltbild zeigt ein Rechnersystem mit einem ersten Prozessor P 1 und einem zweiten Prozessor P 2, die teilweise identische Steuer- und Regeleinrichtungen aufweisen. Der Prozessor P 1 umfaßt eine Mengenregelung 11, der eingangsseitig Gebersignale von der Bremse, dem Fußfahrgeber FFG und einem ersten Drehzahlgeber D 1 zugeführt werden. Der Drehzahlgeber D 1 ist über einen steuerbaren Umschalter S 11 mit der Mengenregelung 11 verbunden. Das Ausgangssignal der Mengenregelung, welches den Sollwert U SOLL darstellt, wird einem Proportional-Differential-Verstellregler 12 und einem Vergleicher 13 an seinem positiven Eingang zugeführt. Am negativen Eingang des Vergleichers 13 liegt der Istwert U IST an, der die Stellung der Regelstange der Einspritzpumpe repräsentiert. Das ausgangsseitige Differenzsignal des Vergleichers 13 wird einem Stellregler 14 zugeführt. Die Ausgänge des PD-Verstellreglers 12 und des Stellreglers 14 sind wahlweise über einen nachgeschalteten steuerbaren Umschalter S 12 und über zwei weitere externe Umschalter S 1, S 2 mit dem Eingang einer Endstufe E verbindbar, die zur Betätigung der als Einstellorgan dienenden Regelstange einer Einspritzpumpe vorgesehen ist.The block diagram shown in the drawing shows a computer system with a first processor P 1 and a second processor P 2 , some of which have identical control and regulating devices. The processor P 1 comprises a quantity control 11 , to which input signals from the brake, the foot pedal FFG and a first speed sensor D 1 are fed on the input side. The speed sensor D 1 is connected to the quantity control 11 via a controllable changeover switch S 11 . The output signal of the quantity control, which represents the target value U TARGET , is fed to a proportional-differential adjustment controller 12 and a comparator 13 at its positive input. The actual value U IST , which represents the position of the control rod of the injection pump, is present at the negative input of the comparator 13 . The difference signal on the output side of the comparator 13 is fed to a control controller 14 . The outputs of the PD adjuster 12 and the adjuster 14 can optionally be connected via a downstream controllable changeover switch S 12 and two further external changeover switches S 1 , S 2 to the input of an output stage E , which are provided for actuating the control rod of an injection pump which serves as the setting element is.
Der zweite Prozessor P 2 besitzt ebenfalls eine Mengenregelung 21, die jedoch nur bei einem Defekt in der Mengenregelung 11 oder im Prozessor P 1 mittels eines nchgeschalteten Umschalters S 23 wirksam geschaltet wird. Um dies zu veranschaulichen sind entsprechende Signalleitungen, die bei einem Defekt im Prozessor P 1 oder bei einem Defekt in der Mengenregelung 11 eine logisch "I" aufweisen über eine ODER-Schaltung mit dem Steuereingang des Umschalters S 23 verbunden, der bei Anliegen einer logischen "I" die andere, hier nicht dargestellte Schalterstellung einnimmt und den Ausgang der Mengenregelung 21 mit dem Eingang des PD-Verstellreglers 22 verbindet. The second processor P 2 likewise has a quantity control 21 , which, however, is only activated in the event of a defect in the quantity control 11 or in the processor P 1 by means of a toggle switch S 23 . To illustrate this, corresponding signal lines which have a logic "I" in the event of a defect in the processor P 1 or a defect in the quantity control 11 are connected via an OR circuit to the control input of the changeover switch S 23 which, when a logic " I "assumes the other switch position, not shown here, and connects the output of the quantity control 21 to the input of the PD adjustment controller 22 .
Ein im Prozessor P 2 vorgesehener Umschalter S 21, ein Vergleicher 23, ein Stellregler 24 und ein steuerbarer Umschalter S 22 entsprechen in ihrer Funktion den entsprechenden oben beschriebenen Einrichtungen. Entsprechend werden auch der Mengenregelung 21 Gebersignale von einem Drehzahlgeber D 2, vom Fußfahrgeber FFG und von einem die Stellung der Bremse kennzeichnenden Geber zugeführt.A changeover switch S 21 provided in the processor P 2 , a comparator 23 , a positioner 24 and a controllable changeover switch S 22 correspond in their function to the corresponding devices described above. Correspondingly, the quantity control 21 is also supplied with sensor signals from a speed sensor D 2 , from the pedestrian sensor FFG and from a sensor which characterizes the position of the brake.
Die im Ausführungsbeispiel dargestellten Schalterstellungen entsprechen dem störungsfreien Normalbetrieb. Der Sollwert U SOLL wird in diesem Fall über eine serielle Schnittstelle und über den Umschalter S 23 von der Mengenregelung 11 zum Vergleicher 23 des Prozessors P 2 übertragen. Dort erfolgt der Vergleich mit dem Istwert U IST und in Abhängigkeit von der ermittelten Differenz gibt der Stellregler 24 über den Umschalter S 22 den Stellwert U STELL an die Endstufe E zur Einstellung der Regelstange weiter. Die Mengenregelung 21 ist in diesem Zustand nicht wirksam.The switch positions shown in the exemplary embodiment correspond to the normal, trouble-free operation. In this case, the setpoint U SOLL is transmitted from the quantity control 11 to the comparator 23 of the processor P 2 via a serial interface and the changeover switch S 23 . There the comparison is made with the actual value U IST and, depending on the difference determined, the control controller 24 passes the control value U SET to the output stage E via the changeover switch S 22 for setting the control rod. The quantity control 21 is not effective in this state.
Ist einer der Drehzahlgeber D 1, D 2 defekt, veranlaßt die jeweils zugehörige Steuerung 15 oder 25 eine Umschaltung des zugehörigen Umschalters S 11 oder S 21. Tritt beispielsweise im Drehzahlgeber D 1 ein Defekt auf, wird der Umschalter S 11 über die zugeordnete Steuerung 15 in die andere, hier nicht dargestellte Stellung gebracht, so daß über eine Brücke die Gebersignale des Drehzahlgebers D 2 zum Eingang der Mengenregelung 11 gelangen können.If one of the speed sensors D 1 , D 2 is defective, the associated control 15 or 25 causes the associated switch S 11 or S 21 to be switched over . If, for example, a defect occurs in the speed sensor D 1 , the changeover switch S 11 is brought into the other position (not shown here) via the associated controller 15 , so that the sensor signals of the speed sensor D 2 can reach the input of the quantity control 11 via a bridge.
Den Umschaltern S 12 und S 22 sind Steuerungen 16 und 26 zugeordnet, die bei einem Defekt am Regelweggeber eine Umschaltung bewirken, so daß die Stellregler 14, 24 wirkungslos und die PD-Verstellregler 12, 22 wirksam werden. The switches S 12 and S 22 are assigned controls 16 and 26 which, in the event of a defect in the regulating path transmitter , cause a switchover, so that the regulators 14, 24 have no effect and the PD regulators 12, 22 become effective.
Die beiden Prozessoren P 1, P 2 werden mittels zugeordneten Überwachungsschaltungen UE 1 und UE 2 in ihrer Funktion überwacht. Stellen beide Überwachungsschaltungen UE 1, UE 2 Störungen in den zugeordneten Prozessoren P 1, P 2 fest, wird über das nachgeschaltete UND-Gatter eine Umschaltung des Schalters S 2 und damit eine Abschaltung der Endstufe E bewirkt. Eine elektronische Abschaltung der Kraftstoffzufuhr erfolgt auch dann, wenn eine bleibende Regelabweichung im Prozessor P 2 oder eine bleibende Regelabweichung im Prozessor P 1 bei gleichzeitigem Defekt im Prozessor P 2 festgestellt werden. Diese Funktionen sind durch UND-Schaltungen 31, 32 und eine ODER- Schaltung 33 dargestellt. Der ODER-Schaltung 33 ist ein symbolisch als Transistor dargestellter elektronischer Schalter 34 nachgeschaltet, mit dem die elektronische Abschaltung der Kraftstoffzufuhr erfolgt.The function of the two processors P 1 , P 2 is monitored by means of assigned monitoring circuits UE 1 and UE 2 . If both monitoring circuits UE 1 , UE 2 detect faults in the assigned processors P 1 , P 2 , the switch S 2 is switched over via the downstream AND gate and the output stage E is thus switched off. The fuel supply is also switched off electronically if a permanent control deviation in the processor P 2 or a permanent control deviation in the processor P 1 is detected with a simultaneous defect in the processor P 2 . These functions are represented by AND circuits 31, 32 and an OR circuit 33 . The OR circuit 33 is followed by an electronic switch 34 , symbolically represented as a transistor, by means of which the fuel supply is switched off electronically.
Claims (7)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853539407 DE3539407A1 (en) | 1985-11-07 | 1985-11-07 | COMPUTER SYSTEM WITH TWO PROCESSORS |
JP50536686A JPS63501303A (en) | 1985-11-07 | 1986-09-19 | Computer system with two processors |
EP19860905738 EP0245296A1 (en) | 1985-11-07 | 1986-09-19 | Computer system with two processors |
PCT/DE1986/000407 WO1987003044A1 (en) | 1985-11-07 | 1986-09-19 | Computer system with two processors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853539407 DE3539407A1 (en) | 1985-11-07 | 1985-11-07 | COMPUTER SYSTEM WITH TWO PROCESSORS |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3539407A1 true DE3539407A1 (en) | 1987-05-14 |
Family
ID=6285322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853539407 Withdrawn DE3539407A1 (en) | 1985-11-07 | 1985-11-07 | COMPUTER SYSTEM WITH TWO PROCESSORS |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0245296A1 (en) |
JP (1) | JPS63501303A (en) |
DE (1) | DE3539407A1 (en) |
WO (1) | WO1987003044A1 (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3700986A1 (en) * | 1987-01-15 | 1988-07-28 | Bosch Gmbh Robert | DEVICE FOR MONITORING A COMPUTER SYSTEM WITH TWO PROCESSORS IN A MOTOR VEHICLE |
DE3726489A1 (en) * | 1987-08-08 | 1989-02-16 | Bosch Gmbh Robert | Device for the monitoring of a computer system with two processors in a motor vehicle |
DE3733623A1 (en) * | 1987-10-05 | 1989-04-13 | Bosch Gmbh Robert | DEVICE FOR ADJUSTING THE OPERATING CHARACTERISTICS OF AN INTERNAL COMBUSTION ENGINE |
FR2646687A1 (en) * | 1989-05-02 | 1990-11-09 | Bosch Gmbh Robert | FUEL DOSING SYSTEM WITH REDUNDANT CONTROL SYSTEM |
DE3926377A1 (en) * | 1989-08-04 | 1991-02-07 | Bosch Gmbh Robert | Two-watchdog electronic control equipment for IC engine - provides self-checking of both computers and switches out faulty computer supplying two driver outputs |
EP0536557A1 (en) * | 1991-10-08 | 1993-04-14 | Robert Bosch Gmbh | Apparatus for controlling the ouput power of a motor vehicle |
WO1994000682A1 (en) * | 1992-06-20 | 1994-01-06 | Robert Bosch Gmbh | Motor vehicle control device |
FR2694341A1 (en) * | 1992-07-31 | 1994-02-04 | Robin Centre Est Aeronautique | Power control system for internal combustion engine in e.g. light aircraft - uses dual system of sensors and electronic calculators to back each other up in case of failure |
FR2697585A1 (en) * | 1992-10-29 | 1994-05-06 | Solex | Motor control system with motorized throttle body. |
US5320076A (en) * | 1991-10-10 | 1994-06-14 | Robert Bosch Gmbh | Arrangement for detecting the position of an accelerator pedal and/or a power-determining element of the internal combustion engine of a motor vehicle |
US5654888A (en) * | 1992-06-20 | 1997-08-05 | Robert Bosch Gmbh | Control arrangement for vehicles |
DE19640432A1 (en) * | 1996-09-30 | 1998-04-09 | Siemens Ag | Diesel internal combustion engine monitoring method |
WO2000018613A1 (en) * | 1997-10-01 | 2000-04-06 | Continental Teves Ag & Co. Ohg | Method for detecting errors of microprocessors in control devices of an automobile |
WO2001023737A1 (en) * | 1999-09-30 | 2001-04-05 | Robert Bosch Gmbh | Device and method for controlling a drive unit |
WO2001065110A2 (en) * | 2000-03-01 | 2001-09-07 | Robert Bosch Gmbh | Method for knock regulation in an internal combustion engine |
DE4231449C2 (en) * | 1992-09-19 | 2002-04-11 | Bosch Gmbh Robert | Device for controlling the drive power of an engine constructed from at least two cylinder banks |
DE4336130C2 (en) * | 1992-10-27 | 2002-06-20 | Honda Motor Co Ltd | Electronic control device for a motor vehicle engine |
US6675320B1 (en) | 1998-10-01 | 2004-01-06 | Robert Bosch Gmbh | Method and device for synchronizing and testing a processor and a monitoring circuit |
DE4314118B4 (en) * | 1993-04-29 | 2006-08-31 | Robert Bosch Gmbh | Method and device for controlling the drive power of a vehicle |
WO2012113385A2 (en) * | 2011-02-18 | 2012-08-30 | Conti Temic Microelectronic Gmbh | Semiconductor circuit and method in a safety concept for use in a motor vehicle |
US10920736B2 (en) | 2018-03-22 | 2021-02-16 | Continental Motors, Inc. | Engine ignition timing and power supply system |
WO2021072617A1 (en) * | 2019-10-15 | 2021-04-22 | 北京理工大学 | Fault tolerance control method of electromechanical composite transmission system of aircraft |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3816254A1 (en) * | 1988-05-11 | 1989-11-23 | Siemens Ag | CONTROL UNIT FOR STEERING THE REAR WHEELS OF A ROAD VEHICLE |
US5448480A (en) * | 1988-05-11 | 1995-09-05 | Siemens Aktiengesellschaft | Fail-safe operation via controller redundancy for steering the back wheels of a road vehicle |
DE4128658A1 (en) * | 1991-08-29 | 1993-03-04 | Bosch Gmbh Robert | METHOD FOR CONTROLLING OPERATING PARAMETER DEPENDENT AND CYCLICALLY REPEATING OPERATING PROCESSES OF INTERNAL COMBUSTION ENGINES |
FR2796420B1 (en) * | 1999-07-15 | 2005-08-19 | Renault | INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINE |
GB2360856B (en) * | 2000-03-30 | 2004-06-23 | Llanelli Radiators Ltd | Intelligent control unit |
CN102890487A (en) * | 2012-09-24 | 2013-01-23 | 三一重机有限公司 | Multi-controller electrical control system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5810246A (en) * | 1981-07-13 | 1983-01-20 | Nissan Motor Co Ltd | Digital controller for vehicle |
DE3303102A1 (en) * | 1983-01-31 | 1984-08-02 | Siemens AG, 1000 Berlin und 8000 München | FLOW RATE CONTROL ARRANGEMENT |
DE3342379A1 (en) * | 1983-11-24 | 1985-06-05 | Robert Bosch Gmbh, 7000 Stuttgart | EMERGENCY CONTROL SYSTEM FOR FUEL MEASURING DEVICES |
-
1985
- 1985-11-07 DE DE19853539407 patent/DE3539407A1/en not_active Withdrawn
-
1986
- 1986-09-19 EP EP19860905738 patent/EP0245296A1/en not_active Ceased
- 1986-09-19 JP JP50536686A patent/JPS63501303A/en active Pending
- 1986-09-19 WO PCT/DE1986/000407 patent/WO1987003044A1/en not_active Application Discontinuation
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3700986A1 (en) * | 1987-01-15 | 1988-07-28 | Bosch Gmbh Robert | DEVICE FOR MONITORING A COMPUTER SYSTEM WITH TWO PROCESSORS IN A MOTOR VEHICLE |
DE3726489A1 (en) * | 1987-08-08 | 1989-02-16 | Bosch Gmbh Robert | Device for the monitoring of a computer system with two processors in a motor vehicle |
DE3733623A1 (en) * | 1987-10-05 | 1989-04-13 | Bosch Gmbh Robert | DEVICE FOR ADJUSTING THE OPERATING CHARACTERISTICS OF AN INTERNAL COMBUSTION ENGINE |
FR2646687A1 (en) * | 1989-05-02 | 1990-11-09 | Bosch Gmbh Robert | FUEL DOSING SYSTEM WITH REDUNDANT CONTROL SYSTEM |
US4989569A (en) * | 1989-05-02 | 1991-02-05 | Robert Bosch Gmbh | Fuel-metering system having a redundant control arrangement |
DE3926377C2 (en) * | 1989-08-04 | 2003-03-06 | Bosch Gmbh Robert | Electronic control device for an internal combustion engine |
DE3926377A1 (en) * | 1989-08-04 | 1991-02-07 | Bosch Gmbh Robert | Two-watchdog electronic control equipment for IC engine - provides self-checking of both computers and switches out faulty computer supplying two driver outputs |
EP0536557A1 (en) * | 1991-10-08 | 1993-04-14 | Robert Bosch Gmbh | Apparatus for controlling the ouput power of a motor vehicle |
US5339782A (en) * | 1991-10-08 | 1994-08-23 | Robert Bosch Gmbh | Arrangement for controlling the drive power of a motor vehicle |
US5320076A (en) * | 1991-10-10 | 1994-06-14 | Robert Bosch Gmbh | Arrangement for detecting the position of an accelerator pedal and/or a power-determining element of the internal combustion engine of a motor vehicle |
WO1994000682A1 (en) * | 1992-06-20 | 1994-01-06 | Robert Bosch Gmbh | Motor vehicle control device |
US5654888A (en) * | 1992-06-20 | 1997-08-05 | Robert Bosch Gmbh | Control arrangement for vehicles |
FR2694341A1 (en) * | 1992-07-31 | 1994-02-04 | Robin Centre Est Aeronautique | Power control system for internal combustion engine in e.g. light aircraft - uses dual system of sensors and electronic calculators to back each other up in case of failure |
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Also Published As
Publication number | Publication date |
---|---|
JPS63501303A (en) | 1988-05-19 |
EP0245296A1 (en) | 1987-11-19 |
WO1987003044A1 (en) | 1987-05-21 |
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