EP1915654A1 - Control chip for providing the basic functionality of a control device - Google Patents

Control chip for providing the basic functionality of a control device

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Publication number
EP1915654A1
EP1915654A1 EP06792712A EP06792712A EP1915654A1 EP 1915654 A1 EP1915654 A1 EP 1915654A1 EP 06792712 A EP06792712 A EP 06792712A EP 06792712 A EP06792712 A EP 06792712A EP 1915654 A1 EP1915654 A1 EP 1915654A1
Authority
EP
European Patent Office
Prior art keywords
control chip
control
driver
chip
additional
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.)
Ceased
Application number
EP06792712A
Other languages
German (de)
French (fr)
Inventor
Immanuel Krauter
Uwe Guenther
Manfred Kirschner
Beate Leibbrand
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1915654A1 publication Critical patent/EP1915654A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • 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
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428—Safety, monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/125—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M3/135—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M3/137—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/23—Pc programming
    • G05B2219/23282—Detect erroneous instructions in asic systems
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25258—ASIC

Definitions

  • Control chip for providing the basic functionality of a controller
  • Control chip for providing the basic functionality of an engine control unit
  • the invention relates to a control (peripheral / power amplifier) chip for providing the basic functionality of a control device according to claim 1, which is also referred to below as a U-chip.
  • Modern control devices in particular for motor control, consist of a computer core (micro-controller) and a peripheral chipset for realizing the required hardware functions.
  • This peripheral chipset typically consists of various application-specific integrated chipsets
  • ASICs Application Circuits
  • partitioning The division of the required hardware functions among the various ASICs and modules.
  • a prior art peripheral ECU chipset of the prior art engine control typically has 2 ASIC partitioning.
  • a first ASIC (ASIC 1) which has the following components: a power supply (switching regulator, which can also be configured as a linear regulator) with four different output voltages; three 5V encoder supplies, two of which can be independently configured to 3, SV output voltage, where the encoder supplies are diagnosable for short circuit to ground and short to battery voltage; a monitoring module; a driver for bidirectional interfaces; a CAN driver with wake-up functionality; a tracking control; a main relay output stage with fault diagnosis Short circuit to battery voltage, short circuit to earth, load drop and overtemperature; a stop counter, and a bidirectional serial interface (SPI) to communicate with the microcontroller.
  • a power supply switching regulator, which can also be configured as a linear regulator
  • three 5V encoder supplies two of which can be independently configured to 3, SV output voltage, where the encoder supplies are diagnosable for short circuit to ground and short to battery voltage
  • a monitoring module a driver for bidirectional interfaces
  • a CAN driver with wake-up functionality a tracking control
  • a second ASIC (ASIC 2) has the following components: Power output stages with nominal currents of 1.1 A to 3 A; a diagnostic function for faults short circuit to battery voltage, short circuit to earth, load drop and excess temperature; a 5V supply voltage monitoring; a bidirectional serial interface for communicating with the microcontroller, and a unidirectional serial interface ( ⁇ s bus) for controlling the power amplifiers.
  • DE 103 34 014 describes a peripheral chipset in which the basic functionality of a controller as described above is partitioned onto two ASICs. Depending on the requirements of the hardware functions, additional blocks are required.
  • a control chip comprising a power supply with at least two, in particular three, output voltages; at least two, in particular three encoder supplies, in particular with 5 V or 3.3 V output voltage; at least one driver for bidirectional interfaces; a CAN driver; a tracking control; a main relay output stage with diagnostic function; at least one bidirectional serial interface for controlling the power amplifiers and communicating with a microcontroller; at least six power output stages, in particular with nominal currents of 0.6 A to 3 A; at least one small signal output stage, in particular with nominal currents of 50 rtiA, and four ignition drivers.
  • An essential point of the present invention is that the benefits of high integration are exploited to realize innovative partitioning for base segment controllers.
  • the hardware functions represented by ASIC 1 and 2 as well as possibly also by extension ICs can be applied to the elementary functions, which are eg. B. in an engine control unit of the base segment can be reduced, resulting in a cost savings.
  • redundant ASIC circuit parts such. B. power supply and SPI (single-point injection) on each ASIC 1 and 2 by their integration with expansion ICs on a U-chip, which has a further cost savings.
  • ASIC packaging will be reduced by at least two to one, which will again save costs.
  • the space requirement on the printed circuit board is also reduced, whereby a loss of usefulness with additional cost advantages Part is created.
  • the ⁇ s bus can be consistently used to reduce the number of lines and the device pins.
  • the diagnostic function can be designed to detect faulty conditions, in particular for short circuit to battery voltage, short circuit to ground, load drop or excess temperature.
  • OBD off-board diagnostics
  • an additional module may be provided for its monitoring.
  • the controller checks itself by z. For example, a memory with test patterns is written and read again, and a comparison with checksums ensures that data and programs are stored correctly.
  • An additional driver for serial interfaces can be used to connect devices that require such drivers.
  • So z. B. the above-mentioned test device can be used, which usually uses a serial communication interface (ISO 9141) with a free baud rate of 10 to 10 kBaud.
  • ISO 9141 serial communication interface
  • additional power output stages in particular with nominal currents of 0.6 A to 3 A, can be integrated in the U-chip.
  • an engine control unit such as the setting of the driver desired operating condition can thus z.
  • transmission and air conditioning are controlled.
  • two additional small signal stages in particular with nominal currents of 50 mA, can be provided. This allows more small devices with low control voltage such. Relays, displays, etc. can be controlled.
  • two VoIl-H bridges can be provided, which allow the control of devices with high control voltage at the same time small footprint of the bridges. These can optionally be configured as single high-side and low-high-side switches to ensure high adaptability to the respective operating conditions.
  • This adaptability is increased by also the encoder supply from 3.3 V to 5 V is configurable.
  • the U chip is suitable for a control unit, in particular for an engine control unit of a future generation, and in particular for gasoline and diesel engines.
  • the engine control unit can be designed as a control device for an engine management system, in particular a fuel injection system.
  • the peripheral chip set is formed modularly from integrated application-specific elementary switching circuits for providing a basic functionality of the control device and optionally with application-specific integrated supplementary circuits for providing requirements beyond the basic functionality to the control device. Due to the flexible and modular design of the peripheral chip set, which is constructed according to the requirements, an individual size adaptation to specific functionalities of a control unit can be realized.
  • the chip 10 has a power supply, three sensor supplies 1 - 3, a main relay stage with diagnostics and tracking control, four ignition drivers, one driver for a bidirectional interface, a small signal stage 50 rtiA, three output voltages 1 - 3, a bidirectional serial interface to the controller, a CAN driver and six output stages 0.6 A - 3 A as a base segment on.
  • a further driver for a bidirectional interface two small-signal stages 50 rtiA, two VoIl-H bridges, an additional monitoring module and a further six output stages 0.6 A - 3 A are provided, which are each indicated by dashed lines.
  • the components outside the voltage and Geberversorgun- gene as well as the output voltages communicate with one another through a serial connection 11.
  • the respective input and / or output terminals 12, 12 ', 12 ff of the components are shown by corresponding arrows to its edge 13 side.
  • the chip 10 may be designed according to the figure. Due to the possibility of flexible and modular construction of the chip 10, hardware functions of the control unit beyond the basic segment can be supplemented individually. Optional components of the chip 10 as shown in the figure may be replaced by other components as appropriate.
  • the partitioning of the peripheral chipset is adapted to future requirements.
  • An additional advantage of the new partitioning is in particular its great flexibility.
  • the basic functionality of a control unit is already presentable with an electronic unit or ASIC.
  • individual basic functionalities can be provided with an electronic unit or ASIC modular. Thus, it is not necessary that complex ASICs be used for these basic functions.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Microcomputers (AREA)

Abstract

The invention relates to a control chip (10) for providing the basic functionality of a control device. Said control chip (10) comprises a supply voltage with at least two, especially three output voltages, at least two, particularly three sensor power supplies, especially with an output voltage of 5 V or 3.3 V, at least one driver for bi-directional interfaces, a CAN driver, a servo control, a main relay output featuring a diagnostic function, at least one bi-directional serial interface for controlling the outputs and communicating with a microcontroller, at least six power outputs, particularly with nominal currents ranging from 0.6 A to 3 A, at least one low-level signal output, especially with nominal currents of 50 mA, and four ignition drivers.

Description

Beschreibungdescription
Titeltitle
Steuerungs-Chip zum Bereitstellen der Grundfunktionalität eines SteuergerätsControl chip for providing the basic functionality of a controller
Beschreibungdescription
Steuerungs-Chip zum Bereitstellen der Grundfunktionalität eines MotorsteuergerätsControl chip for providing the basic functionality of an engine control unit
Die Erfindung betrifft einen Steuerungs- (Peripherie- / Endstufen) Chip zum Bereitstellen der Grundfunktionalität eines Steuergeräts nach Anspruch 1, der im Folgenden auch kurz als U-Chip bezeichnet wird.The invention relates to a control (peripheral / power amplifier) chip for providing the basic functionality of a control device according to claim 1, which is also referred to below as a U-chip.
Moderne Steuergeräte, insbesondere zur Motorsteuerung, bestehen aus einem Rechnerkern (Mikro-Controller) sowie einem Peripherie-Chipsatz zum Realisieren der benötigten Hardware- Funktionen. Dieser Peripherie-Chipsatz besteht typischerweise aus verschiedenen applikationsspezifischen integriertenModern control devices, in particular for motor control, consist of a computer core (micro-controller) and a peripheral chipset for realizing the required hardware functions. This peripheral chipset typically consists of various application-specific integrated chipsets
Schaltkreisen (ASICs) und weiteren elektronischen Baugruppen. Die Aufteilung der benötigten Hardware-Funktionen auf die verschiedenen ASICs und Baugruppen wird als Partitionierung bezeichnet .Circuits (ASICs) and other electronic assemblies. The division of the required hardware functions among the various ASICs and modules is called partitioning.
Ein Peripherie-Chipsatz der Motorsteuergerätegeneration gemäß dem Stand der Technik weist typischerweise eine 2 ASICs umfassende Partitionierung auf.A prior art peripheral ECU chipset of the prior art engine control typically has 2 ASIC partitioning.
Hierbei ist ein erster ASIC (ASIC 1) vorgesehen, der folgende Komponenten aufweist: eine Spannungsversorgung (Schaltregler, der auch als Linearregler konfiguriert werden kann) mit vier verschiedenen Ausgangsspannungen; drei 5V-Geberversorgungen, von denen zwei unabhängig voneinander auch auf 3, SV- AusgangsSpannung konfiguriert werden können, wobei die Geberversorgungen auf Kurzschluss nach Masse und Kurzschluss nach Batteriespannung diagnostizierbar sind; ein Überwachungsmodul; ein Treiber für bidirektionale Schnittstellen; ein CAN- Treiber mit Wake-Up-Funktionalität; eine NachlaufSteuerung; eine Hauptrelaisendstufe mit Diagnose der Fehlerfälle Kurzschluss nach Batteriespannung, Kurzschluss nach Masse, Last- abfall und Übertemperatur; einen Stopp-Counter, und eine bidirektionale serielle Schnittstelle (SPI) zur Kommunikation mit dem Mikro-Controller .Here, a first ASIC (ASIC 1) is provided which has the following components: a power supply (switching regulator, which can also be configured as a linear regulator) with four different output voltages; three 5V encoder supplies, two of which can be independently configured to 3, SV output voltage, where the encoder supplies are diagnosable for short circuit to ground and short to battery voltage; a monitoring module; a driver for bidirectional interfaces; a CAN driver with wake-up functionality; a tracking control; a main relay output stage with fault diagnosis Short circuit to battery voltage, short circuit to earth, load drop and overtemperature; a stop counter, and a bidirectional serial interface (SPI) to communicate with the microcontroller.
Ein zweiter ASIC (ASIC 2) weist folgende Komponenten auf : Leistungsendstufen mit Nennströmen von 1,1 A bis 3 A; eine Diagnosefunktion für die Fehlerfälle Kurzschluss nach Batteriespannung, Kurzschluss nach Masse, Lastabfall und Ü- bertemperatur; eine 5V-Versorgungsspannungsüberwachung; eine bidirektionale serielle Schnittstelle zum Kommunizie- ren mir dem Mikro-Controller, und eine unidirektionale serielle Schnittstelle (μs-Bus) zum Steuern der Endstufen.A second ASIC (ASIC 2) has the following components: Power output stages with nominal currents of 1.1 A to 3 A; a diagnostic function for faults short circuit to battery voltage, short circuit to earth, load drop and excess temperature; a 5V supply voltage monitoring; a bidirectional serial interface for communicating with the microcontroller, and a unidirectional serial interface (μs bus) for controlling the power amplifiers.
Die DE 103 34 014 beschreibt einen Peripherie-Chipsatz, bei dem die Grundfunktionalität eines Steuergeräts wie vorstehend beschrieben auf zwei ASICs partitioniert ist. Abhängig von den Anforderungen an die Hardware-Funktionen sind noch zusätzlich Bausteine erforderlich.DE 103 34 014 describes a peripheral chipset in which the basic functionality of a controller as described above is partitioned onto two ASICs. Depending on the requirements of the hardware functions, additional blocks are required.
Für die Darstellung von Motorsteuergeräten des Basis-Segments (Steuergeräte-Segment mit den allernötigsten Funktionen) sind die oa Hardware-Funktionen allerdings nur teilweise erforderlich. Das bedeutet, dass die heutigen Peripherie-Chipsätze sowohl unter (Leiterkarten) Flächenbedarfs- als auch Kostengesichtspunkten 'überdimensioniert' sind.For the representation of engine control units of the basic segment (ECU segment with the most necessary functions), the above hardware functions are only partially required. This means that today's peripheral chipsets are 'oversized' in both footprint and cost considerations.
Es ist Aufgabe der vorliegenden Erfindung, eine Partitionie- rung anzugeben, welche die elementaren Hardware-Funktionen ei- nes Steuergeräts auf möglichst kleiner Fläche zusammenführt, und die einfach und kostengünstig zu realisieren ist.It is an object of the present invention to provide a partitioning which performs the elementary hardware functions of a nes control unit merges on the smallest possible area, and is easy and inexpensive to implement.
Diese Aufgabe wird durch einen Steuerungs-Chip gelöst, umfas- send eine Spannungsversorgung mit wenigstens zwei, insbesondere drei Ausgangsspannungen; wenigstens zwei, insbesondere drei Geberversorgungen, insbesondere mit 5 V beziehungsweise 3,3 V Ausgangsspannung; wenigstens einen Treiber für bidirektionale Schnittstellen; einen CAN-Treiber; eine Nachlaufsteu- erung; eine Hauptrelaisendstufe mit Diagnosefunktion; wenigstens eine bidirektionalen seriellen Schnittstelle zum Steuern der Endstufen und zum Kommunizieren mit einem MikroController; wenigstens sechs Leistungsendstufen, insbesondere mit Nennströmen von 0,6 A bis 3 A; wenigstens eine Kleinsig- nalendstufe, insbesondere mit Nennströmen von 50 rtiA, und vier Zündtreiber.This object is achieved by a control chip, comprising a power supply with at least two, in particular three, output voltages; at least two, in particular three encoder supplies, in particular with 5 V or 3.3 V output voltage; at least one driver for bidirectional interfaces; a CAN driver; a tracking control; a main relay output stage with diagnostic function; at least one bidirectional serial interface for controlling the power amplifiers and communicating with a microcontroller; at least six power output stages, in particular with nominal currents of 0.6 A to 3 A; at least one small signal output stage, in particular with nominal currents of 50 rtiA, and four ignition drivers.
Ein derart hochintegrierter U-Chip trägt den Anforderungen hinsichtlich Kostenoptimierung und Optimierung des Flächenbe- darfs auf der Leiterplatte Rechnung.Such a highly integrated U-chip takes account of the requirements with regard to cost optimization and optimization of the area required on the printed circuit board.
Ein wesentlicher Punkt der vorliegenden Erfindung besteht dabei darin, dass die Vorteile der Hochintegration zum Realisieren einer innovativen Partitionierung für Steuergeräte des Basis-Segments genutzt werden. Dadurch können die durch ASIC 1 und 2 sowie ggf. auch durch Erweiterungs-ICs dargestellten Hardwarefunktionen auf die elementaren Funktionen, die z. B. in einem Motorsteuergerät des Basis-Segments zu realisieren sind, reduziert werden, was zu einer Kosteneinsparung führt. Gleichzeitig entfallen redundante ASIC-Schaltungsteile wie z. B. Spannungsversorgung und SPI (Single-Point-Injection) auf jeweils ASIC 1 und 2 durch deren Zusammenführung mit Erweiterungs-ICs auf einen U-Chip, was eine weitere Kosteneinsparung zur Folge hat. Des Weiteren werden ASIC-Verpackungen von min- destens zwei auf eine reduziert, wodurch nochmals Kosten entfallen. Auch der Flächenbedarf auf der Leiterplatte wird reduziert, wodurch ein Nutzensprung mit zusätzlichem Kostenvor- teil entsteht. Überdies kann der μs-Bus konsequent zum Reduzieren der Anzahl der Leitungen und der Bauelemente-Pins genutzt werden.An essential point of the present invention is that the benefits of high integration are exploited to realize innovative partitioning for base segment controllers. As a result, the hardware functions represented by ASIC 1 and 2 as well as possibly also by extension ICs can be applied to the elementary functions, which are eg. B. in an engine control unit of the base segment can be reduced, resulting in a cost savings. At the same time accounts redundant ASIC circuit parts such. B. power supply and SPI (single-point injection) on each ASIC 1 and 2 by their integration with expansion ICs on a U-chip, which has a further cost savings. In addition, ASIC packaging will be reduced by at least two to one, which will again save costs. The space requirement on the printed circuit board is also reduced, whereby a loss of usefulness with additional cost advantages Part is created. Moreover, the μs bus can be consistently used to reduce the number of lines and the device pins.
Vorteilhafte Weiterbildungen des Steuerungs-Chips sind in den folgenden Unteransprüchen 2 bis 11 angegeben.Advantageous developments of the control chip are given in the following subclaims 2 to 11.
In einer vorteilhaften Ausgestaltung der vorliegenden Erfindung kann die Diagnosefunktion zum Erkennen von Fehlerfällen, insbesondere für Kurzschluss nach Batteriespannung, Kurz- schluss nach Masse, Lastabfall oder Übertemperatur ausgebildet sein. Die Ergebnisse können damit von OBD (Off Board Diagnose) -Testgeräten ausgewertet werden, was die Fehlerfindung im Wartungsfall erleichtert.In an advantageous embodiment of the present invention, the diagnostic function can be designed to detect faulty conditions, in particular for short circuit to battery voltage, short circuit to ground, load drop or excess temperature. The results can thus be evaluated by OBD (off-board diagnostics) testers, which facilitates fault finding during maintenance.
Um eine Beschädigung des Steuergeräts durch Fehler zu vermeiden, kann ein zusätzliches Modul zu dessen Überwachung vorgesehen sein. Das Steuergerät prüft sich dann selbst, indem z. B. ein Speicher mit Prüfmustern beschrieben und wieder gele- sen wird, und ein Vergleich mit Prüfsummen sicherstellt, dass Daten und Programme richtig abgespeichert sind.In order to prevent damage to the control unit due to errors, an additional module may be provided for its monitoring. The controller then checks itself by z. For example, a memory with test patterns is written and read again, and a comparison with checksums ensures that data and programs are stored correctly.
Durch einen zusätzlichen Treiber für serielle Schnittstellen können Geräte angeschlossen werden, die solche Treiber vor- aussetzen. So kann z. B. das vorstehend genannte Testgerät genutzt werden, das üblicherweise eine serielle Kommunikationsschnittstelle (ISO 9141) mit einer freie Baudrate von 10 bis 10 kBaud nutzt.An additional driver for serial interfaces can be used to connect devices that require such drivers. So z. B. the above-mentioned test device can be used, which usually uses a serial communication interface (ISO 9141) with a free baud rate of 10 to 10 kBaud.
Zum Realisieren von Zusatzfunktionen eines Steuergeräts können sechs zusätzliche Leistungsendstufen, insbesondere mit Nennströmen von 0,6 A bis 3 A in dem U-Chip integriert sein. Neben den Grundfunktionen z. B. eines Motorsteuergeräts wie dem Einstellen des von Fahrer gewünschten Betriebszustands können damit z. B. Getriebe und Klimaanlage gesteuert werden. Als weitere Schaltungskomponenten können zwei zusätzliche Kleinsignalstufen, insbesondere mit Nennströmen von 50 mA, vorgesehen sein. Damit können weitere Kleingeräte mit geringer Steuerspannung wie z. B. Relais, Anzeigen usw. angesteu- ert werden.To implement additional functions of a control unit, six additional power output stages, in particular with nominal currents of 0.6 A to 3 A, can be integrated in the U-chip. In addition to the basic functions z. B. an engine control unit such as the setting of the driver desired operating condition can thus z. As transmission and air conditioning are controlled. As additional circuit components, two additional small signal stages, in particular with nominal currents of 50 mA, can be provided. This allows more small devices with low control voltage such. Relays, displays, etc. can be controlled.
In einer weiteren Ausgestaltung können weiterhin zwei VoIl-H- Brücken vorgesehen sein, welche die Steuerung von Geräten mit hoher Steuerspannung bei gleichzeitig geringem Platzbedarf der Brücken zulassen. Diese können wahlweise als Einzel-High- Side- und Low-High-Side-Schalter konfigurierbar sein, um eine hohe Anpassbarkeit an die jeweiligen Einsatzbedingungen zu gewährleisten .In a further embodiment, two VoIl-H bridges can be provided, which allow the control of devices with high control voltage at the same time small footprint of the bridges. These can optionally be configured as single high-side and low-high-side switches to ensure high adaptability to the respective operating conditions.
Diese Anpassbarkeit wird dadurch erhöht, indem auch die Geberversorgung von 3,3 V auf 5 V konfigurierbar ist.This adaptability is increased by also the encoder supply from 3.3 V to 5 V is configurable.
Erfindungsgemäß ist der U-Chip für ein Steuergerät, insbesondere für ein Motorsteuergerät einer zukünftigen Generation, und dabei insbesondere für Benzin- und Dieselmotoren geeignet. Das Motorsteuergerät kann dabei als Steuereinrichtung für ein Motormanagementsystem, insbesondere ein Kraftstoffeinspritzsystem, ausgebildet sein. Der Peripheriechipsatz ist modular aus integrierten applikationsspezifischen EIe- mentarschaltkreisen zur Bereitstellung einer Grundfunktionalität des Steuergerätes sowie optional mit applikationsspezifischen integrierten Ergänzungsschaltkreisen zur Bereitstellung von über die Grundfunktionalität hinausgehenden Anforderungen an das Steuergerät ausgebildet. Aufgrund der flexiblen und modularen Bauweise des Peripheriechipsatzes, welcher den Anforderungen entsprechend aufgebaut ist, ist eine individuelle Größenanpassung an konkrete Funktionalitäten eines Steuergerätes realisierbar.According to the invention, the U chip is suitable for a control unit, in particular for an engine control unit of a future generation, and in particular for gasoline and diesel engines. The engine control unit can be designed as a control device for an engine management system, in particular a fuel injection system. The peripheral chip set is formed modularly from integrated application-specific elementary switching circuits for providing a basic functionality of the control device and optionally with application-specific integrated supplementary circuits for providing requirements beyond the basic functionality to the control device. Due to the flexible and modular design of the peripheral chip set, which is constructed according to the requirements, an individual size adaptation to specific functionalities of a control unit can be realized.
Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels näher erläutert. Gleiche oder gleichwirkende Teile sind mit gleichen Bezugszeichen versehen. In der einzigen Figur ist gemäß eines bevorzugten Ausführungsbeispiels der Erfindung eine konkrete Partitionierung eines U-Chips 10 für ein Motorsteuergerät schematisch darge- stellt. Der erfindungsgemäße Chip 10 weist eine Spannungsversorgung, drei Geberversorgungen 1 - 3, eine Hauptrelaisstufe mit Diagnose und NachlaufSteuerung, vier Zündtreiber, jeweils einen Treiber für eine bidirektionale Schnittstelle, eine Kleinsignalstufe 50 rtiA, drei AusgangsSpannungen 1 - 3, eine bidirektionale serielle Schnittstelle zum Controller, einen CAN-Treiber und sechs Leistungsendstufen 0,6 A - 3 A als Basis-Segment auf. Optional dazu sind in der gezeigten Ausführungsform ein weiterer Treiber für eine bidirektionale Schnittstelle, zwei Kleinsignalstufen 50 rtiA, zwei VoIl-H- Brücken, ein zusätzliches Überwachungsmodul und weitere sechs Leistungsendstufen 0,6 A - 3 A vorgesehen, die jeweils gestrichelt angedeutet sind.The invention will be explained in more detail below with reference to an embodiment. The same or equivalent parts are provided with the same reference numerals. In the single figure, according to a preferred embodiment of the invention, a concrete partitioning of a U-chip 10 for an engine control unit is shown schematically. The chip 10 according to the invention has a power supply, three sensor supplies 1 - 3, a main relay stage with diagnostics and tracking control, four ignition drivers, one driver for a bidirectional interface, a small signal stage 50 rtiA, three output voltages 1 - 3, a bidirectional serial interface to the controller, a CAN driver and six output stages 0.6 A - 3 A as a base segment on. Optionally, in the embodiment shown, a further driver for a bidirectional interface, two small-signal stages 50 rtiA, two VoIl-H bridges, an additional monitoring module and a further six output stages 0.6 A - 3 A are provided, which are each indicated by dashed lines.
Die Komponenten außerhalb der Spannungs- und Geberversorgun- gen sowie der AusgangsSpannungen kommunizieren untereinander über eine serielle Verbindung 11. Die jeweiligen Ein- und/oder Ausgangsanschlüsse 12, 12', 12 f f der Komponenten sind durch entsprechende Pfeile zu dessen Rand 13 hin dargestellt. Abhängig von den Anforderungen, die an die Funktiona- lität eines Steuergeräts gestellt werden, kann der Chip 10 gemäß der Figur ausgebildet sein. Aufgrund der Möglichkeit, den Chip 10 flexibel und modular aufzubauen, sind Hardwarefunktionen des Steuergeräts über das Basis-Segment hinaus individuell ergänzbar. Optionale Komponenten des Chips 10, wie in der Figur abgebildet, können jeweiligen Anforderungen entsprechend durch andere Komponenten ersetzt werden.The components outside the voltage and Geberversorgun- gene as well as the output voltages communicate with one another through a serial connection 11. The respective input and / or output terminals 12, 12 ', 12 ff of the components are shown by corresponding arrows to its edge 13 side. Depending on the requirements that are placed on the functionality of a control unit, the chip 10 may be designed according to the figure. Due to the possibility of flexible and modular construction of the chip 10, hardware functions of the control unit beyond the basic segment can be supplemented individually. Optional components of the chip 10 as shown in the figure may be replaced by other components as appropriate.
Mit der erfindungsgemäßen Ausgestaltung wird die Partitionierung des Peripherie-Chipsatzes an zukünftige Erforder- nisse angepasst. Ein zusätzlicher Vorteil der neuen Parti- onierung besteht insbesondere in ihrer großen Flexibilität. Somit ist die Grundfunktionalität eines Steuergeräts be- reits mit einer elektronischen Einheit bzw. ASIC darstellbar. Damit ist eine kostengünstige Abdeckung des Niedrigpreissegmentes möglich. Insbesondere individuelle Grundfunktionalitäten können mit einer elektronischen Einheit bzw. ASIC modular bereitgestellt werden. Somit ist nicht erforderlich, dass für diese Grundfunktionalitäten komplex konstruierte ASICs zum Einsatz kommen. With the embodiment according to the invention, the partitioning of the peripheral chipset is adapted to future requirements. An additional advantage of the new partitioning is in particular its great flexibility. Thus, the basic functionality of a control unit is already presentable with an electronic unit or ASIC. For a cost-effective coverage of the low price segment is possible. In particular, individual basic functionalities can be provided with an electronic unit or ASIC modular. Thus, it is not necessary that complex ASICs be used for these basic functions.

Claims

Patentansprüche claims
1. Steuerungs-Chip (10) zum Bereitstellen der Grundfunktionalität eines Steuergeräts, umfassend eine Spannungsversorgung mit wenigstens zwei, insbesonde- re drei Ausgangsspannungen; wenigstens zwei, insbesondere drei Geberversorgungen, insbesondere mit 5 V beziehungsweise 3,3 V Ausgangsspannung; wenigstens einen Treiber für bidirektionale Schnittstel- len; einen CAN-Treiber; eine NachlaufSteuerung; eine Hauptrelaisendstufe mit Diagnosefunktion; wenigstens eine bidirektionalen seriellen Schnittstelle zum Steuern der Endstufen und zum Kommunizieren mit einemA control chip (10) for providing the basic functionality of a control device, comprising a power supply having at least two, in particular three output voltages; at least two, in particular three encoder supplies, in particular with 5 V or 3.3 V output voltage; at least one driver for bidirectional interfaces; a CAN driver; a tracking control; a main relay output stage with diagnostic function; at least one bidirectional serial interface for controlling the power amplifiers and communicating with one
Mikro-Controller; wenigstens sechs Leistungsendstufen, insbesondere mitMicro-controller; at least six output stages, especially with
Nennströmen von 0,6 A bis 3 A; wenigstens eine Kleinsignalendstufe, insbesondere mit Nennströmen von 50 rtiA, und vier Zündtreiber.Rated currents from 0.6 A to 3 A; at least one small signal output stage, in particular with nominal currents of 50 rtiA, and four ignition drivers.
2. Steuerungs-Chip (10) nach Anspruch 1, bei dem die Diagnosefunktion zum Erkennen von Fehlerfällen, insbesondere für Kurzschluss nach Batteriespannung, Kurzschluss nach Masse, Lastabfall oder Übertemperatur ausgebildet ist.2. Control chip (10) according to claim 1, wherein the diagnostic function for detecting error cases, in particular for short circuit to battery voltage, short circuit to ground, load drop or overtemperature is formed.
3. Steuerungs-Chip (10) nach Anspruch 1 oder 2, bei dem ein zusätzliches Modul zum Überwachen des Steuergeräts vorge- sehen ist. 3. Control chip (10) according to claim 1 or 2, wherein an additional module for monitoring the control device is provided.
4. Steuerungs-Chip (10) nach einem der vorstehenden Ansprüche, bei dem ein zusätzlicher Treiber für serielle Schnittstellen vorgesehen ist.4. Control chip (10) according to one of the preceding claims, in which an additional driver for serial interfaces is provided.
5. Steuerungs-Chip (10) nach einem der vorstehenden Ansprüche, bei dem sechs zusätzliche Leistungsendstufen, insbesondere mit Nennströmen von 0,6 A bis 3 A vorgesehen sind.5. control chip (10) according to any one of the preceding claims, are provided in the six additional power stages, in particular with nominal currents of 0.6 A to 3 A.
6. Steuerungs-Chip (10) nach einem der vorstehenden Ansprüche, bei dem zwei zusätzliche Kleinsignalstufen, insbesondere mit Nennströmen von 50 rtiA vorgesehen sind.6. control chip (10) according to any one of the preceding claims, in which two additional small signal stages, in particular with nominal currents of 50 rtiA are provided.
7. Steuerungs-Chip (10) nach einem der vorstehenden Ansprü- che, bei dem zwei Voll-H-Brücken vorgesehen sind.7. Control chip (10) according to one of the preceding claims che, in which two full-H bridges are provided.
8. Steuerungs-Chip (10) nach Anspruch 7, bei dem die Voll-H- Brücken wahlweise als Einzel-High-Side- und Low-High- Side-Schalter konfigurierbar sind.8. Control chip (10) according to claim 7, wherein the full-H bridges are configurable either as a single high-side and low-high side switch.
9. Steuerungs-Chip (10) nach einem der vorstehenden Ansprüche, bei dem die Geberversorgung von 3,3 V auf 5 V konfigurierbar ist.9. Control chip (10) according to any one of the preceding claims, wherein the encoder supply from 3.3 V to 5 V is configurable.
10. Motorsteuergerät, insbesondere für ein Kraftfahrzeug, mit einem Steuerungs-Chip (10) nach einem der vorstehenden Ansprüche .10. Engine control unit, in particular for a motor vehicle, with a control chip (10) according to one of the preceding claims.
11. Motorsteuergerät nach Anspruch 10, welches als Steuerein- richtung für ein Motormanagementsystem, insbesondere ein Kraftstoffeinspritzsystem, ausgebildet ist. 11. Engine control unit according to claim 10, which is designed as a control device for an engine management system, in particular a fuel injection system.
EP06792712A 2005-08-08 2006-08-04 Control chip for providing the basic functionality of a control device Ceased EP1915654A1 (en)

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US8583345B2 (en) 2013-11-12
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CN101243363A (en) 2008-08-13
RU2008108470A (en) 2009-09-20

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