DE102017220534A1 - Simplification of the control interface between control ASIC and microcontroller - Google Patents
Simplification of the control interface between control ASIC and microcontroller Download PDFInfo
- Publication number
- DE102017220534A1 DE102017220534A1 DE102017220534.2A DE102017220534A DE102017220534A1 DE 102017220534 A1 DE102017220534 A1 DE 102017220534A1 DE 102017220534 A DE102017220534 A DE 102017220534A DE 102017220534 A1 DE102017220534 A1 DE 102017220534A1
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- Germany
- Prior art keywords
- phase
- phases
- charging
- control
- signal
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zur Steuerung von Kraftstoff-Einspritzvorrichtungen einer Brennkraftmaschine, wobei zur Steuerung der Einspritzungen ein ON-Signal verwendet wird, wobei pro Bank ein ON-Signal vorhanden ist, wobei mit der fallenden ON-Flanke eine Ladephase oder eine Entladephase gesteuert wird. Der anzusteuerende Zylinder auf der Bank wird vor der Ansteuerung durch einen SPI-Burst Befehl ausgewählt. Es wird vorgeschlagen, dass mit der fallenden ON-Flanke eine Phase gestartet und mit der steigenden Flanke diese Phase beendet wird. The invention relates to a method for controlling fuel injection devices of an internal combustion engine, wherein an ON signal is used to control the injections, wherein an ON signal is present per bank, wherein a charging phase or a discharge phase is controlled with the falling ON edge , The cylinder to be controlled on the bank is selected by an SPI Burst command prior to activation. It is suggested that a phase is started with the falling ON edge and that phase is ended with the rising edge.
Description
Stand der TechnikState of the art
Die Ansteuerung von Commonrail-Piezo Injektoren erfolgt herkömmlicherweise über drei Signale pro Bank, ein „ON“-Signal, über die der Beginn des Lade- und der Beginn des Entladevorgangs getriggert wird, sowie über zwei Select-Signale. Über die Select-Signale wird der zu ansteuerende Injektor auf der Bank ausgewählt. Bisher werden nur Ansteuerungen mit einer Lade- und einer Entladeflanke abgesetzt. Über eine SPI-Übertragung werden mittels Burst-Befehlen vor jeder Ansteuerung die Ansteuerparameter für die nachfolgende Ansteuerung vom Steuergeräte-Mikrocontroller zum Ansteuer-ASIC übertragen, wie in der
Offenbarung der ErfindungDisclosure of the invention
Durch das erfindungsgemäße Verfahren zur Steuerung von Kraftstoff-Einspritzvorrichtungen kann die Ansteuerschnittstelle zwischen Steuergeräte-Mikrocontroller und Ansteuer-ASIC vereinfacht werden. Die Anzahl der Pins am ASIC und die Anzahl der Leiterbahnen auf der Leitplatte können reduziert werden. Weiterhin werden weniger Mikrocontroller-Pins bzw. Mikrocontroller-Ports belegt. Dabei werden die Zylinder-Auswahlschalter pro Bank nicht wie bisher über zwei separate Pins am ASIC und zwei Leiterbahnen ausgewählt, sondern die Auswahl des Zylinder-Auswahlschalters erfolgt über einen speziellen SPI Burst-Zugriff. Die SPI-Schnittstelle ist bereits vorhanden und kann durch eine neue Befehlsart hierfür verwendet werden.By means of the method according to the invention for controlling fuel injection devices, the control interface between the control unit microcontroller and the control ASIC can be simplified. The number of pins on the ASIC and the number of traces on the baffle can be reduced. Furthermore, fewer microcontroller pins or microcontroller ports are occupied. The cylinder selection switches per bank are not selected as before via two separate pins on the ASIC and two tracks, but the selection of the cylinder selector switch via a special SPI burst access. The SPI interface already exists and can be used by a new command type.
Des Weiteren kann bei einer reduzierten Ansteuerschnittstelle eine höhere Funktionalität dargestellt werden.Furthermore, a higher functionality can be displayed with a reduced drive interface.
Beschreibungdescription
Beim Ladevorgang und beim Entladevorgang können jeweils bis zu zwei Phasen durch das ON-Signal getriggert werden, wie in
Vor jeder Ansteuerung muss zuerst ein Synchronisationspuls am ON-Signal gesendet werden (
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102005003273 A1 [0001]DE 102005003273 A1 [0001]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102017220534.2A DE102017220534A1 (en) | 2017-11-17 | 2017-11-17 | Simplification of the control interface between control ASIC and microcontroller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102017220534.2A DE102017220534A1 (en) | 2017-11-17 | 2017-11-17 | Simplification of the control interface between control ASIC and microcontroller |
Publications (1)
Publication Number | Publication Date |
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DE102017220534A1 true DE102017220534A1 (en) | 2019-05-23 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102017220534.2A Pending DE102017220534A1 (en) | 2017-11-17 | 2017-11-17 | Simplification of the control interface between control ASIC and microcontroller |
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DE (1) | DE102017220534A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005003273A1 (en) | 2005-01-25 | 2006-07-27 | Robert Bosch Gmbh | Fuel injection device operating method for internal combustion engine, involves generating control parameter in form of reference values, and transferring parameter to controller in burst mode for operation of piezo-electric actuator |
DE102007014328A1 (en) * | 2007-03-26 | 2008-10-02 | Robert Bosch Gmbh | Activation of a piezoelectric element for fuel injection |
DE102014111422A1 (en) * | 2013-08-20 | 2015-02-26 | Infineon Technologies Ag | Driver circuit for driving electromagnetic actuators |
DE102014201479A1 (en) * | 2013-12-04 | 2015-06-11 | Hyundai Autron Co., Ltd. | Injector driver and method of operation of the same |
DE102014220635A1 (en) * | 2014-06-17 | 2015-12-17 | Hyundai Motor Company | Device for controlling a fuel injector |
DE102016121767A1 (en) * | 2015-11-18 | 2017-05-18 | Infineon Technologies Ag | System and method for a synchronized driver circuit |
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2017
- 2017-11-17 DE DE102017220534.2A patent/DE102017220534A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005003273A1 (en) | 2005-01-25 | 2006-07-27 | Robert Bosch Gmbh | Fuel injection device operating method for internal combustion engine, involves generating control parameter in form of reference values, and transferring parameter to controller in burst mode for operation of piezo-electric actuator |
DE102007014328A1 (en) * | 2007-03-26 | 2008-10-02 | Robert Bosch Gmbh | Activation of a piezoelectric element for fuel injection |
DE102014111422A1 (en) * | 2013-08-20 | 2015-02-26 | Infineon Technologies Ag | Driver circuit for driving electromagnetic actuators |
DE102014201479A1 (en) * | 2013-12-04 | 2015-06-11 | Hyundai Autron Co., Ltd. | Injector driver and method of operation of the same |
DE102014220635A1 (en) * | 2014-06-17 | 2015-12-17 | Hyundai Motor Company | Device for controlling a fuel injector |
DE102016121767A1 (en) * | 2015-11-18 | 2017-05-18 | Infineon Technologies Ag | System and method for a synchronized driver circuit |
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