WO1999048021A2 - Systeme informatique destine a des vehicules automobiles - Google Patents

Systeme informatique destine a des vehicules automobiles Download PDF

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Publication number
WO1999048021A2
WO1999048021A2 PCT/EP1999/001613 EP9901613W WO9948021A2 WO 1999048021 A2 WO1999048021 A2 WO 1999048021A2 EP 9901613 W EP9901613 W EP 9901613W WO 9948021 A2 WO9948021 A2 WO 9948021A2
Authority
WO
WIPO (PCT)
Prior art keywords
computer system
graphics
memory
processor
modules
Prior art date
Application number
PCT/EP1999/001613
Other languages
German (de)
English (en)
Other versions
WO1999048021A3 (fr
Inventor
Peter Fiedler
Original Assignee
Valeo Electronics Gmbh & Co. Kg
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 Valeo Electronics Gmbh & Co. Kg filed Critical Valeo Electronics Gmbh & Co. Kg
Publication of WO1999048021A2 publication Critical patent/WO1999048021A2/fr
Publication of WO1999048021A3 publication Critical patent/WO1999048021A3/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network

Definitions

  • the invention relates to a computer system for motor vehicles.
  • Computer systems of this type are installed in motor vehicles in order to inform the vehicle occupants about partially safety-relevant vehicle data while driving.
  • Typical data collected with such computer systems are e.g. the engine speed, air conditioning setting, outside temperature display and others also the set radio frequency.
  • the recorded vehicle data are usually transmitted to the computer system via the in-vehicle data bus and displayed to the occupants via suitable vehicle instruments.
  • the object of the invention is to create an expandable computer system for motor vehicles which can thus be adapted to different and growing requirements, in which the system parts, the multimedia tasks and those which perform safety-related tasks are also strictly decoupled for security reasons. Furthermore, the computing power, memory expansion and graphics capabilities must be kept variable for future applications.
  • the computer system in addition to further assemblies, is divided into at least two mutually independent processor assemblies, each of which has microprocessors.
  • the independent processor modules provide a high degree of variability, since both processor modules can be used simultaneously for different, mutually independent tasks and can also be adapted to different vehicle manufacturers and vehicle types.
  • the computer system for motor vehicles according to the invention can simultaneously meet the high security requirements of the automotive industry.
  • the first processor module is used for real-time monitoring of safety and comfort-relevant vehicle data and for communication with the vehicle environment and the second processor module is used for multimedia tasks.
  • the first processor module also important vehicle data such as engine speed, fuel consumption, remaining range, air conditioning and other interior settings, system failures or, for example, the station identification on the radio can also be monitored in real time.
  • the second processor module it is possible to use the second processor module to carry out multimedia applications, such as information and data exchange via the Internet, for example e-mail, World Wide Web, fax or other services.
  • the second processor module for multimedia applications generally requires operating systems, as are known from currently customary personal computers.
  • Such an operating system can e.g. deal with the program "Windows”, so that, among other things, conventional PC programs can also be run with the vehicle-internal computer system.
  • the first processor module which i.a. is used for security-relevant data processing to use a different and much more stable operating system.
  • This can e.g. are the operating system "OSEK” that was specially developed for use in motor vehicles.
  • each processor module has its own memory area, so that memory-intensive programs can also be executed, particularly in the field of multimedia applications. Also from the Security-related considerations regarding the operating systems used, as already mentioned above, are recommended to equip the first processor module intended for security applications with its own memory in which the vehicle data is stored and further processed.
  • a graphic input / output module is provided for the input of video and TV signals or other graphic information as well as the output of these signals and graphic data.
  • the input / output module which among other things responsible for displaying the screen memory on an in-vehicle screen can also be used for communication between the two processor modules, each of which can store its data in a part of a graphics memory.
  • a further graphics microcontroller is provided for graphics processing for particularly demanding and / or fast graphics.
  • the use of such a microcontroller can be recommended if particularly computing-intensive graphics applications are used, e.g. the 3D animation of maps or the like.
  • This graphics controller which e.g. is responsible for particularly fast drawing of lines, is freely programmable and can thus be variably adapted to the desired task within wide limits.
  • the graphics microcontroller also works with hardware support. In this case it is e.g. conceivable that the graphics microcontroller contains a hardware floating point unit with which particularly computing-intensive applications, such as Matrix operations or polynomial calculations can be carried out.
  • the first processor module which is responsible for safety-related applications, for example, can communicate with the various vehicle systems, such as the engine electronics, via a special in-vehicle bus system.
  • This bus system is preferably a CAN bus (controller area network).
  • CAN bus controller area network
  • Other bus systems are also conceivable here.
  • a graphics memory can be divided into several areas, e.g. Communication areas, program memory or screen memory, etc. can be divided. It is therefore possible that e.g. important vehicle data are stored by the first processor module, which are stored by the second processor module e.g. continue to be used in multimedia applications.
  • Hardware MMUs can be used in the respective processors to ensure secure communication.
  • An MMU is a memory management unit.
  • a computer system suitable for a motor vehicle which takes over the tasks of already known computer systems, but also offers flexible and individual expandability, so that the computer system according to the invention completely replaces the known computer systems can replace and still, depending on the vehicle type or vehicle class, in the simplest way by adding the special modules to the desired requirement.
  • FIG. 1 The basic computer system structure with all essential assemblies
  • FIG. 2 A computer system that has been expanded to the maximum for multimedia and graphics applications
  • FIG. 3 A computer system for standard applications
  • FIG. 4 A minimally expanded computer system
  • FIG. 1 shows a computer system for motor vehicles which, in addition to further assemblies, is divided into at least two mutually independent processor assemblies, each of which has microprocessors.
  • the processor modules are module 1, which is used for real-time monitoring of safety and comfort-relevant vehicle data and for communication with the vehicle environment, and processor module 2, which is used for multimedia tasks.
  • the processor module 1 is connected to the CAN bus of the vehicle via serial connections 7.
  • the processor module 1 has its own memory area 10, which can be expanded depending on the desired application.
  • the graphic input / output module 3 is in turn subdivided into a DMA controller 14, a memory bus interface 15 and input and output units 16 and 17 for video data. It is therefore possible that, for example, video data present at video input 8, which is made available, for example, by a video camera or also by a TV receiver, via video input 16 of module 3 and a subsequent DMA transfer (direct memory access) is read into the screen memory 13 of the graphics memory 4 via the memory bus interface 15 of the module 3.
  • the screen memory of the graphics memory 4 to which in turn all modules of the computer system have access, can conversely be displayed on a screen 9 via the memory bus interface 15 of the module 3 and a DMA transfer via the video output unit 17.
  • the expansion stages of the processor modules 1 and 2 as well as the graphics memory 4 and the graphics microcontroller 5 can be freely selected. This means that these modules can be individually adapted to the desired application by differently sized memory areas or by differently fast processors.
  • the graphic microcontroller 5 which in turn is connected to its program memory 12 in the graphic memory 4 via the graphic module 3 by means of a DMA transfer and the memory bus interface 15, can be used for particularly computationally intensive graphic applications and manipulates e.g. the data to be displayed stored in the screen memory. Because the program memory 12 of the graphic microcontroller 5 is located in the graphic memory 4, the programs for the graphic microcontroller 5 can be individually adapted to any desired application.
  • FIG. 2 shows a possible maximum expansion stage of the computer system suitable for motor vehicles.
  • the processor module equipped for multimedia applications is equipped with a 200 MHz processor.
  • the processor can be, for example, standard Pentium processors or other types.
  • connection between the graphics module 3 and the common graphics memory 4 is implemented via a 64-bit-wide memory bus interface 15.
  • the graphics microcontroller is also equipped with a 200 MHz processor.
  • FIG. 3 shows a standard version of the computer system for motor vehicles, in which the multimedia processor 2 is equipped with its own smaller memory area and with a CPU clocked at only 80 MHz.
  • the graphic microcontroller 5 has only a clock frequency of 80 MHz for smaller graphic applications.
  • the minimum equipment is shown in Figure 4.
  • the multimedia-compatible processor module 2 is completely omitted here. Because of the low demands on the graphics capability of the entire system, the graphics memory 4 is designed to be smaller and only has a memory bus interface 15 of 32 bit width. The clock frequency of the graphics microcontroller is also only designed for 60 MHz.
  • this minimal system in addition to a video display, only the most important vehicle data can be monitored and displayed on a vehicle-internal screen 9, as is already known from existing computer systems. Compared to these known computer systems the present minimal system, however, still offers the possibility of being subsequently adapted to growing tasks and requirements. As the most cost-effective variant, this minimal system is therefore suitable to replace the existing computer systems and, as a basic version, to be installed in lower-class vehicles.
  • the computer system is only to be used to inform the vehicle occupants about data and status of the vehicle systems, the use of a graphics microcontroller 5 and a video input unit 8 can be dispensed with. It is also sufficient to equip communication processor 1 with a data width of only 8 bits. Such a system is shown in FIG. 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

L'invention concerne un système informatique destiné à des applications multimédias dans les véhicules automobiles. Ce système informatique comprend différents modules (3, 4, 5) et, en plus, il est subdivisé en au moins 2 modules processeurs (1, 2) qui sont indépendants et possédent chacun des microprocesseurs.
PCT/EP1999/001613 1998-03-14 1999-03-12 Systeme informatique destine a des vehicules automobiles WO1999048021A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998111235 DE19811235A1 (de) 1998-03-14 1998-03-14 Computer-System für Kraftfahrzeuge
DE19811235.1 1998-03-14

Publications (2)

Publication Number Publication Date
WO1999048021A2 true WO1999048021A2 (fr) 1999-09-23
WO1999048021A3 WO1999048021A3 (fr) 1999-11-04

Family

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PCT/EP1999/001613 WO1999048021A2 (fr) 1998-03-14 1999-03-12 Systeme informatique destine a des vehicules automobiles

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DE (1) DE19811235A1 (fr)
WO (1) WO1999048021A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002100045A1 (fr) * 2001-06-06 2002-12-12 Robert Bosch Gmbh Station de bus embarquee dans un vehicule
EP1000810A3 (fr) * 1998-11-09 2003-01-15 Volkswagen Aktiengesellschaft Système d'ordinateur pour véhicule
WO2004068344A1 (fr) * 2003-01-31 2004-08-12 Robert Bosch Gmbh Systeme d'ordinateurs monte dans un vehicule
EP1615141A2 (fr) 2004-07-01 2006-01-11 Harman Becker Automotive Systems GmbH Architecture d'ordinateur pour un système multimedia mobile utilisé dans un véhicule
WO2006024957A2 (fr) * 2004-07-01 2006-03-09 Harman Becker Automotive Systems Gmbh Systeme multimedia pour automobile

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JP3900778B2 (ja) * 2000-02-22 2007-04-04 アイシン・エィ・ダブリュ株式会社 ナビゲーション装置
DE10123842A1 (de) * 2001-05-16 2002-12-05 Bosch Gmbh Robert System zur Steuerung von elektrisch ansteuerbaren Komponenten, entsprechende Zentralsteuereinheit und entsprechendes Modul
EP1447281A1 (fr) * 2003-02-13 2004-08-18 ESG Elektroniksystem-und Logistik-Gesellschaft mit beschränkter Haftung Système de composants électroniques modulaire et cadrable
DE10335812A1 (de) * 2003-02-13 2004-09-02 Esg Elektroniksystem- Und Logistik-Gmbh Modulares uns skalierbares System von Elektronikkomponenten für Fahrzeuge
DE102010052486B4 (de) * 2010-11-26 2015-08-27 Bombardier Transportation Gmbh Steuerungsanordnung zur Steuerung des Betriebs eines spurgebundenen Fahrzeugs sowie Verfahren zum Herstellen der Steuerungsanordnung

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DE19650104A1 (de) * 1995-12-04 1997-06-05 Toyota Motor Co Ltd Elektronische Steuervorrichtung für ein Kraftfahrzeug
WO1997019833A2 (fr) * 1995-11-29 1997-06-05 Microsoft Corporation Systeme ordinateur pour vehicule
EP0817096A2 (fr) * 1996-04-02 1998-01-07 Texas Instruments Incorporated Circuit intégré

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JPS59214710A (ja) * 1983-05-23 1984-12-04 Hitachi Ltd ナビゲ−シヨン装置
JPH02148163A (ja) * 1988-11-29 1990-06-07 Nec Software Ltd マルチオペレーティングシステム
JP2904296B2 (ja) * 1990-03-30 1999-06-14 マツダ株式会社 車両用多重伝送装置
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5608884A (en) * 1995-05-17 1997-03-04 Dell Usa, L.P. Commonly housed multiple processor type computing system and method of manufacturing the same
WO1997019833A2 (fr) * 1995-11-29 1997-06-05 Microsoft Corporation Systeme ordinateur pour vehicule
DE19650104A1 (de) * 1995-12-04 1997-06-05 Toyota Motor Co Ltd Elektronische Steuervorrichtung für ein Kraftfahrzeug
EP0817096A2 (fr) * 1996-04-02 1998-01-07 Texas Instruments Incorporated Circuit intégré

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1000810A3 (fr) * 1998-11-09 2003-01-15 Volkswagen Aktiengesellschaft Système d'ordinateur pour véhicule
WO2002100045A1 (fr) * 2001-06-06 2002-12-12 Robert Bosch Gmbh Station de bus embarquee dans un vehicule
US7315094B2 (en) 2001-06-06 2008-01-01 Robert Bosch Gmbh Bus station in a vehicle
WO2004068344A1 (fr) * 2003-01-31 2004-08-12 Robert Bosch Gmbh Systeme d'ordinateurs monte dans un vehicule
US8571782B2 (en) 2003-01-31 2013-10-29 Robert Bosch Gmbh Computer system for use in vehicles
EP1615141A2 (fr) 2004-07-01 2006-01-11 Harman Becker Automotive Systems GmbH Architecture d'ordinateur pour un système multimedia mobile utilisé dans un véhicule
WO2006024957A2 (fr) * 2004-07-01 2006-03-09 Harman Becker Automotive Systems Gmbh Systeme multimedia pour automobile
EP1615141A3 (fr) * 2004-07-01 2006-07-12 Harman Becker Automotive Systems GmbH Architecture d'ordinateur pour un système multimedia mobile utilisé dans un véhicule
WO2006024957A3 (fr) * 2004-07-01 2006-11-16 Harman Becker Automotive Sys Systeme multimedia pour automobile
US7664931B2 (en) 2004-07-01 2010-02-16 Harman Becker Automotive Systems Gmbh Scalable and configurable multimedia system for a vehicle

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Publication number Publication date
WO1999048021A3 (fr) 1999-11-04
DE19811235A1 (de) 1999-09-16

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