DE102006051909A1 - Electronic motor vehicle control device for use in e.g. electrical brake system, has additional control circuit provided for restarting microprocessor, when error occurs in device, where error results in failure of microprocessor - Google Patents
Electronic motor vehicle control device for use in e.g. electrical brake system, has additional control circuit provided for restarting microprocessor, when error occurs in device, where error results in failure of microprocessor Download PDFInfo
- Publication number
- DE102006051909A1 DE102006051909A1 DE102006051909A DE102006051909A DE102006051909A1 DE 102006051909 A1 DE102006051909 A1 DE 102006051909A1 DE 102006051909 A DE102006051909 A DE 102006051909A DE 102006051909 A DE102006051909 A DE 102006051909A DE 102006051909 A1 DE102006051909 A1 DE 102006051909A1
- Authority
- DE
- Germany
- Prior art keywords
- microprocessor
- microprocessor system
- error
- circuit
- memory
- 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
Links
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000015654 memory Effects 0.000 claims description 25
- 230000004913 activation Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 230000006399 behavior Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/24—Resetting means
-
- 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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0751—Error or fault detection not based on redundancy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
Abstract
Description
Die Erfindung betrifft ein elektronisches Kraftfahrzeugsteuergerät gemäß Anspruch 1 und dessen Verwendung.The The invention relates to an electronic vehicle control unit according to claim 1 and its use.
Kraftfahrzeugbremsensteuergeräte mit ABS, ESP etc., die als Kernstück der Elektronik einen fehlerabgesicherten Mikrocontroller (z.B. in zweikerniger Mikroprozessortechnik aufgebaut) und einen integrierten Gemischtsignalschaltkreis umfassen, sind an sich bekannt. Die Trennung des mit dem Mikroprozessorsystem ausgestatteten Mikrocontroller und des Gemischtsignalchips ist erforderlich, um Leistungstreiber zur Ansteuerung beispielsweise der Ventilspulen eines ABS-Systems bei der eingesetzten Halbleitertechnologie ebenfalls in integrierten Bauweise herstellen zu können.Motor vehicle brake control units with ABS, ESP etc., as the centerpiece the electronics have a fail-safe microcontroller (e.g. binuclear microprocessor technology) and an integrated Mixed signal circuit include, are known per se. The separation of the microcontroller equipped with the microprocessor system and the mixed signal chip is required to power drivers For controlling, for example, the valve coils of an ABS system in the used Semiconductor technology also in integrated construction to be able to.
Innerhalb des Gemischtsignalschalkreises ist neben den Leistungstreibern auch die Spannungsversorgung sowie die Fehlerüberwachung (watch dog) für den Mikroprozessor integriert. Weiterhin sind verschiedene Logikelemente darin enthalten, welche die Zustände der Steuerleitungen, wie z.B. die Leitung "Zündung" zum Anschalten des Steuergeräts überwachen. Diese Logikelemente umfassen ferner eine Weckschaltung, die das Steuergerät im Falle einer Aktivität auf dem CAN-Bus des Fahrzeugs aktiviert.Within the mixed signal circuit is in addition to the power drivers as well the power supply as well as the error monitoring (watch dog) for the microprocessor integrated. Furthermore, various logic elements are included therein, which the states the control lines, such as monitor the "Ignition" wire to turn on the controller. These logic elements further comprise a wake-up circuit, which the control unit in the case of an activity activated on the CAN bus of the vehicle.
Es besteht nun in den Kraftfahrzeugsteuergeräten der oben beschriebenen Gattung das Problem, dass darin Fehlerzustände auftreten können, die zwar ein Abtrennen des Steuergeräts von sicherheitskritischen Teilen der Peripherie (z.B. ABS-Ventilspulentreiber) im Sinne einer Stilllegung bewirken, aber dennoch der Mikrocontroller selbst auf Grund eines darin aufgetretenen Fehlers das Abschalten der Zündung (IGN-Leitung auf "Low"-Pegel) nicht mehr erkennt. Für einen Neustart (Reset) des Mikrocontrollers ist dann ein Trennen des Steuergeräts von der Stromversorgung bzw. der Fahrzeugbatterie notwendig.It now exists in the motor vehicle control units of the type described above Genus the problem that it can occur fault conditions, the Although a disconnection of the controller safety-critical parts of the periphery (for example ABS solenoid driver) in the sense of a shutdown effect, but still the microcontroller even switching off due to an error occurred the ignition (IGN line to "low" level) no longer recognizes. For one Restart (reset) of the microcontroller is then disconnecting the controller from the power supply or the vehicle battery necessary.
Die Aufgabe der vorliegenden Erfindung besteht nun darin, ein elektronisches Steuergerät mit einer Schaltungsanordnung anzugeben, welches eine verbesserte Fehlerbehandlungsschaltung aufweist und insbesondere dahingehend verbessert ist, dass nach einem internen Fehler des Mikrocontrollers oder Mikroprozessors in allen Fällen ein Betätigen der Zündung ("Aus" und wieder "An") zum Reaktivieren des Mikroprozessors und damit des Steuergerätes ausreicht.The Object of the present invention is now an electronic control unit specify with a circuit arrangement which has an improved Has error handling circuit and in particular to the effect that is improved after an internal error of the microcontroller or Microprocessors in all cases pressing the ignition ("Off" and again "on") to reactivate the microprocessor and thus the controller is sufficient.
Diese Aufgabe wird erfindungsgemäß gelöst durch das elektronische Kraftfahrzeugsteuergerät gemäß Anspruch 1.These The object is achieved by the electronic vehicle control unit according to claim 1.
Weitere bevorzugte Ausführungsformen ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung.Further preferred embodiments emerge from the dependent claims and the description below.
Die
Erfindung wird nun an Hand von
In
der schematischen Darstellung der Schaltungsanordnung in
Gemäß einem
weiteren, nicht dargestellten Beispiel ist vorgesehen, die Schaltungsteile
von Chip
Das
Mikroprozessorsystem
Speicher
In
Chip
Die
korrekte Funktion von Mikroprozessorsystem
Fällt der
Mikroprozessor durch einen Fehler aus, so bewirkt Fehlerüberwachungsschaltung
Um
dieses Problem zu beseitigen, besitzt Speicher
Wird
Mikroprozessorsystem
Gegenüber dem
Stand der Technik ist die vorstehend beschrie bene Schaltung durch
einen zusätzlichen
Kontrollschaltkreis
Bevorzugt
ist Zeitglied
Es
ist außerdem
bevorzugt, dass das Mikroprozessorsystem eine Logik oder ein Programm
umfasst, mit dem zum Beispiel über
SPI-Bus
Über ODER-Glied
Gemäß einer
bevorzugten Ausführungsform der
Schaltung ist vorgesehen, dass im Fall, wenn die Überwachungsschaltung
Während des
Betriebs der zuvor beschriebenen Schaltung besteht die Möglichkeit,
das Mikroprozessorsystem über
einen „High"-Pegel an einem der Eingänge
Erkennt
Schaltung
Gemäß einer
bevorzugten Ausführungsform des
weiter oben beschriebenen elektronischen Steuergeräts ist ein
weiterer Speicher
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006051909A DE102006051909A1 (en) | 2005-11-02 | 2006-10-31 | Electronic motor vehicle control device for use in e.g. electrical brake system, has additional control circuit provided for restarting microprocessor, when error occurs in device, where error results in failure of microprocessor |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005052542.3 | 2005-11-02 | ||
DE102005052542 | 2005-11-02 | ||
DE102006051909A DE102006051909A1 (en) | 2005-11-02 | 2006-10-31 | Electronic motor vehicle control device for use in e.g. electrical brake system, has additional control circuit provided for restarting microprocessor, when error occurs in device, where error results in failure of microprocessor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006051909A1 true DE102006051909A1 (en) | 2007-07-12 |
Family
ID=38170062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006051909A Ceased DE102006051909A1 (en) | 2005-11-02 | 2006-10-31 | Electronic motor vehicle control device for use in e.g. electrical brake system, has additional control circuit provided for restarting microprocessor, when error occurs in device, where error results in failure of microprocessor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006051909A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011009183A1 (en) * | 2011-01-21 | 2012-07-26 | Continental Automotive Gmbh | Circuit device for use in control device of motor car, has voltage monitoring lines formed with switch that is controlled by microcontroller, where switch is closed with successful initialization of control device by microcontroller |
US9566920B2 (en) | 2011-01-21 | 2017-02-14 | Continental Automotive Gmbh | Circuit arrangement comprising a monitoring device |
CN111824046A (en) * | 2019-04-13 | 2020-10-27 | 比亚迪股份有限公司 | Integrated chip, vehicle control system, equipment and vehicle |
DE102022107282A1 (en) | 2022-03-28 | 2023-09-28 | Bayerische Motoren Werke Aktiengesellschaft | Method for operating an electrical on-board network of a motor vehicle by means of a control device and control device |
DE102022116145A1 (en) | 2022-06-29 | 2024-01-04 | Connaught Electronics Ltd. | Electronic circuit and method for supplying energy to several electronic systems of an electronic control unit of a vehicle, and electronic control arrangement of a vehicle |
-
2006
- 2006-10-31 DE DE102006051909A patent/DE102006051909A1/en not_active Ceased
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011009183A1 (en) * | 2011-01-21 | 2012-07-26 | Continental Automotive Gmbh | Circuit device for use in control device of motor car, has voltage monitoring lines formed with switch that is controlled by microcontroller, where switch is closed with successful initialization of control device by microcontroller |
US9566920B2 (en) | 2011-01-21 | 2017-02-14 | Continental Automotive Gmbh | Circuit arrangement comprising a monitoring device |
CN111824046A (en) * | 2019-04-13 | 2020-10-27 | 比亚迪股份有限公司 | Integrated chip, vehicle control system, equipment and vehicle |
CN111824046B (en) * | 2019-04-13 | 2022-03-18 | 比亚迪股份有限公司 | Integrated chip, vehicle control system, equipment and vehicle |
DE102022107282A1 (en) | 2022-03-28 | 2023-09-28 | Bayerische Motoren Werke Aktiengesellschaft | Method for operating an electrical on-board network of a motor vehicle by means of a control device and control device |
DE102022116145A1 (en) | 2022-06-29 | 2024-01-04 | Connaught Electronics Ltd. | Electronic circuit and method for supplying energy to several electronic systems of an electronic control unit of a vehicle, and electronic control arrangement of a vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
R163 | Identified publications notified |
Effective date: 20110503 |
|
R012 | Request for examination validly filed |
Effective date: 20130831 |
|
R084 | Declaration of willingness to licence | ||
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final | ||
R081 | Change of applicant/patentee |
Owner name: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: CONTINENTAL TEVES AG & CO. OHG, 60488 FRANKFURT, DE |