GB2232272A - Electronic control system for a motor vehicle - Google Patents

Electronic control system for a motor vehicle Download PDF

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Publication number
GB2232272A
GB2232272A GB9007842A GB9007842A GB2232272A GB 2232272 A GB2232272 A GB 2232272A GB 9007842 A GB9007842 A GB 9007842A GB 9007842 A GB9007842 A GB 9007842A GB 2232272 A GB2232272 A GB 2232272A
Authority
GB
United Kingdom
Prior art keywords
control device
sub
main control
programs
control system
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Withdrawn
Application number
GB9007842A
Other versions
GB9007842D0 (en
Inventor
Takashi Matsuura
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.)
Subaru Corp
Original Assignee
Fuji Jukogyo KK
Fuji Heavy Industries Ltd
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 Fuji Jukogyo KK, Fuji Heavy Industries Ltd filed Critical Fuji Jukogyo KK
Publication of GB9007842D0 publication Critical patent/GB9007842D0/en
Publication of GB2232272A publication Critical patent/GB2232272A/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/445—Program loading or initiating
    • 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
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2409—Addressing techniques specially adapted therefor
    • F02D41/2422—Selective use of one or more tables
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Control By Computers (AREA)

Description

"Electronic Control System for a Motor Vehicle" The present invention
relates to a system for electronically controlling the functions of a motor vehicle with a microcomputer and particularly, though not exclusively, to a system adapted to electronically control engine functions.
There are two types of the control system with the microcomputer as follows:
Type I. A control system with a single microcomputer having a large capacity.
Type II. A control system with a plurality of microcomputer having different functions from each other, as described in Japanese Patent Application Laid-Open Nos. 61 212651 and 61-277849.
The control system of the type I is expensive and requires improvement of actuators or sensors connected with the microcomputer.
In the control system of the type II, microcomputers are provided for exclusively controlling the fuel injection, ignition timing and other functions, respectively. However, the control system may be different in accordance with the type of the engine, such as fourcylinder or sixcylinder engines, and the model year. Accordingly, the control system must be made especially for each type of the vehicle.
The present invention seeks to provide an electronic control system which is adaptable for use to control various types of the motor vehicle.
According to the present invention, there is provided an electronic control system for a motor vehicle comprising a main control device having a memory for storing a plurality of basic processing programs which are common to various types of motor vehicles and also storing a plurality of identification numbers including a corresponding identification number for identifying each motor vehicle, a sub-control device having a memory for storing a plurality of individual processing programs which differ in accordance with the type of motor vehicle, command means for sending a command signal including the corresponding identification number and a command for performing predetermined individual processing programs from the main control device to the sub- control device, processing means provided in the subcontrol device and responsive to the command signal for performing the corresponding individual processing programs and for sending output from the programs to the main control device, and means provided in the main control device for performing the basic processing programs based on the output of programs from the sub-control system.
One embodiment of the invention will now be described by way of example with reference to the accompanying drawings, in which:
3 Pigs. la and lb are schematic diagrams showing a control system of the present invention..
Pigs. 2a and 2b are block diagrams in which blocks are formed in accordance with respective functions in a control operation of the control system; and Figs. 3 and 4 are flowcharts of the operation of the control system.
Referring to Fig. 1, an electronic control system 1 according to the present invention is provided for a motor vehicle and includes a subcontrol device la comprising a microcomputer, a main control device lb comprising a microcomputer1 and a driver 1c. The sub-control device la comprises a sub-central-processor-unit (Sub-CPU) 10, a read only memory (ROM) 11, a random access memory (RAM) 12, an input/output (1/0) interface 13 and a serial interface (SCI) 14. These CPU 10, ROM 11, RAM 12, interfaces 13 and 14 are connected to each other through a bus line 15.
Similarly, the main control device lb comprises a main CPU 20, a ROM 21, a RAM 22, an input/output (1/0) interface 23, a serial interface (SCI) 24 and a bus line 25 connecting these elements.
The 1/0 interface 13 of the sub-control device la is applied with various signals from sensors 26, and switches 27 for detecting operating conditions of the vehicle.
The 1/0 interface 23 of the main control device lb is connected to actuators 28 such as fuel injectors, spark plugs, etc. through the driver 1c.
The sub-CPU 10 and the main CPU 20 communicate data to each other through the SCIs 14 and 24.
The ROM 21 for the main CPU 20 stores basic programs for calculations of fuel injection quantity, ignition timing and others which are common to various types of the vehicle, and stores identification numbers Idl, Id2,. ..Idn each of which identifies an individual program which differs in dependency on the type of the vehicle.
The ROM 11 for the sub-CPU 10 stores a number of processing programs, and each of the sets comprises individual processing programs P, - Pn starting from a leading address. The set of programs performs calculations of engine speed and intake air quantity, detection of engine knock and other functions.
Referring to Fig. 2 showing functions of the control system of the present invention, the sub-control device la had sub-calculation means 30, input processing means 31, processing program selecting means 32 and processing program storing means 33 storing sets of programs P11 P2 - Pn, For example, the program P performs engine speed calculation, engine knock detecting and other functions. - -L- The main control device 1b has main calculation means 40, input processing means 41, basic program storing means 42 and output processing means 43. Both the control devicesla and lb are connected through data communication means 50.
The processing program selecting means 32 selects one of the programs P 1 P n in accordance with the identifying number Id sent from the main control device lb and sends the selected program P to the sub-calculation means 30.
The sub-calculation means 3o runs a processing program P selected by the program selecting means 32, based on input signals from the input processing means 31.
The basic program storing means 42 of the main control device 1b stores a plurality of basic processing programs such as the calculations of the fuel injection quantity and the ignition timing based on the engine speed, the intake air quantity and others obtained by the sub-control device la.
The main calculation means 40 sends one of the identification numbers Id for the vehicle to the sub-control device through the communication means 50 and performs the basic processing program'based on the data fed from the sub-control device la and operates one of the actuators 28.
The communication means 50 may be composed by a common memory such as a dual-port RAM, or the 1/0 interfaces 13 and 23 may be used for parallelly communicating the data.
6 Referring to Fig. 3, when a key switch of the vehicle is turned on, the control device lb is initialized at a step S101. At a step S102, the control device 1b sends a confirmation signal to the control device la, and at a step S103, it is determined whether the sub-control device la is ready for communicating or not.
When the sub-control device lb is ready to communicate, a corresponding identification number Id identifying the individual processing program differing from the type of the vehicle is sent to the sub-control device la. At a step SIOS, the basic programs are performed based on the data fed from the sub-control device la which is performed by the sub-control device la as described below.
Referring to Fig. 4, the sub-control device la is initialized at a step S201, and a ready signal is sent to the main control device 1b at a step S202. At a step S203, when the identification number Id is fed from the main control device, the sub-control device la stores it at a predetermined address of the RAM 12. At a step S204, a corresponding set of the programs is selected in accordance with the stored identification number Id and corresponding processing program is performed. At a step S205, results of the processing data are sent to the main control device lb.
If another identification number Id is fed from the main control device lb, the program of Fig. 4 is repeated from the step S203.
7 1 From the foregoing, it will be understood that the control system of the present invention can be used for controlling the various types of the vehicle.
While the presently preferred embodiment of the present invention has been shown and described, it is to be understood that this disclosure is for the purpose of illustration and that various changes and modifications may be made without departing from the scope of the invention as set forth in the appended claims.

Claims (4)

1. An electronic control system for a motor vehicle comprising: a main control device having a first memory for storing a plurality of basic processing programs which are common to various types of motor vehicles and also storing a plurality of identification numbers including a corresponding identification number for identifying the motor vehicle; a sub-control device having a second memory for storing a plurality of individual processing programs which differ in accordance with the motor vehicle; command means for sending a command signal including the corresponding identification number and a command for performing predetermined individual processing programs from the main control device to the sub-control device; processing means provided in the sub-control device responsive to the command signal for performing the corresponding individual processing programs and for sending output from the programs to the main control device; and means provided in the main control device, for performing the basic processing programs based on the output of programs from the sub-control system.
2. A system according to claim 1, wherein each control device comprises a microcomputer.
3. A system according to claim 1 or claim 2 in which the sub-control device is provided with inputs from sensors for detecting operating conditions of inputs from sensors for detecting operating conditions of the vehicle and the main control device is provided with outputs for control of vehicle functions.
-1 9 -
4. An electronic control system substantially as herein described with reference to the accompanying drawings.
Published 1990atThe Patent Office, State House. 66 71 High Holborn. LondonWCIR4TP. Further copies maybe obtained from The Patent Office. Wes Branch, St Maxy Cray, Orpington, Kent BR5 3RD. Printed by Multiplex techniques Ad, St Mary Cray, Kent, Con. 1187
GB9007842A 1989-04-13 1990-04-06 Electronic control system for a motor vehicle Withdrawn GB2232272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9610289A JPH02275047A (en) 1989-04-13 1989-04-13 Electronic controller for vehicle

Publications (2)

Publication Number Publication Date
GB9007842D0 GB9007842D0 (en) 1990-06-06
GB2232272A true GB2232272A (en) 1990-12-05

Family

ID=14156027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9007842A Withdrawn GB2232272A (en) 1989-04-13 1990-04-06 Electronic control system for a motor vehicle

Country Status (3)

Country Link
JP (1) JPH02275047A (en)
DE (1) DE4012003A1 (en)
GB (1) GB2232272A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5473540A (en) * 1990-09-06 1995-12-05 Delco Electronics Corp. Electronic controller for vehicle
US6091446A (en) * 1992-01-21 2000-07-18 Walker; Bradley William Consecutive frame scanning of cinematographic film
US6249731B1 (en) * 1997-05-15 2001-06-19 Robert Bosch Gmbh Method for the manipulation-proof configuration of a vehicle control unit, and a control unit
CN1067459C (en) * 1994-10-12 2001-06-20 罗伯特·博施有限公司 Device and process for controlling internal combustion engine
GB2357859A (en) * 1999-12-30 2001-07-04 Bosch Gmbh Robert Process and device for controlling operating sequences in a vehicle
EP1138918A1 (en) * 2000-04-01 2001-10-04 Robert Bosch GmbH Method and apparatus for providing control parameters to or within a control system
US8994494B2 (en) 2008-10-10 2015-03-31 Polaris Industries Inc. Vehicle security system
US9324195B2 (en) 2013-02-26 2016-04-26 Polaris Industries Inc. Recreational vehicle interactive, telemetry, mapping, and trip planning system
US9644969B2 (en) 2013-02-26 2017-05-09 Polaris Industries Inc. Recreational vehicle interactive telemetry, mapping, and trip planning system
US11102612B2 (en) 2016-02-10 2021-08-24 Polaris Industries Inc. Recreational vehicle group management system
US11209286B2 (en) 2013-02-26 2021-12-28 Polaris Industies Inc. Recreational vehicle interactive telemetry, mapping and trip planning system
US11400997B2 (en) 2016-05-23 2022-08-02 Indian Motorcycle International, LLC Display systems and methods for a recreational vehicle

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105075A1 (en) * 1991-02-19 1992-08-27 Kloeckner Humboldt Deutz Ag Electronic control system with selector for IC engine - has A=D converter in control unit for translating divided voltage into memory address signal
JPH04339158A (en) * 1991-05-16 1992-11-26 Kokusan Denki Co Ltd Controller for internal combustion engine
DE4117393A1 (en) * 1991-05-28 1992-12-03 Kloeckner Humboldt Deutz Ag DEVICE FOR CONTROLLING THE FUEL INJECTION OF AN INTERNAL COMBUSTION ENGINE
DE4140693A1 (en) * 1991-12-10 1993-06-17 Bayerische Motoren Werke Ag Electronic control module for road vehicle engine and transmission - has memory for storing variations in vehicle functions that are automatically accessed
JPH07259626A (en) * 1994-03-16 1995-10-09 Nippondenso Co Ltd Electronic controller of multiple cylinder engine
DE19527353A1 (en) * 1995-07-26 1997-01-30 Bayerische Motoren Werke Ag Universal electronic controller e.g. for vehicle engine or transmission - incorporates several programs, tabular data, constants etc for range of assemblies with automatic selection based on sensor signals
DE10052121B4 (en) * 2000-10-19 2016-03-31 Volkswagen Ag Internal combustion engine with at least two engine control units
DE10153447B4 (en) * 2001-10-30 2017-12-14 Volkswagen Ag Method and device for programming a control device of a vehicle, in particular of a motor vehicle
WO2004006146A2 (en) * 2002-07-04 2004-01-15 Ip2H Ag Method for producing a product and a product for carrying out said method
CN109356737A (en) * 2018-09-30 2019-02-19 潍柴动力股份有限公司 A kind of control method and system of multicylinder engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2216291A (en) * 1988-02-18 1989-10-04 Fuji Heavy Ind Ltd Diagnosis of an electronic control system for a motor vehicle engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE55840T1 (en) * 1985-05-09 1990-09-15 Voest Alpine Automotive MICROCOMPUTER SYSTEM.
DE3624456C2 (en) * 1986-07-19 1994-11-10 Bayerische Motoren Werke Ag Electronic system for a motor vehicle
DE3723024A1 (en) * 1987-07-11 1989-01-19 Bosch Gmbh Robert METHOD AND DEVICE FOR CONTROLLING TECHNICAL SYSTEMS AND MACHINES

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2216291A (en) * 1988-02-18 1989-10-04 Fuji Heavy Ind Ltd Diagnosis of an electronic control system for a motor vehicle engine

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5473540A (en) * 1990-09-06 1995-12-05 Delco Electronics Corp. Electronic controller for vehicle
US6091446A (en) * 1992-01-21 2000-07-18 Walker; Bradley William Consecutive frame scanning of cinematographic film
CN1067459C (en) * 1994-10-12 2001-06-20 罗伯特·博施有限公司 Device and process for controlling internal combustion engine
US6249731B1 (en) * 1997-05-15 2001-06-19 Robert Bosch Gmbh Method for the manipulation-proof configuration of a vehicle control unit, and a control unit
GB2357859A (en) * 1999-12-30 2001-07-04 Bosch Gmbh Robert Process and device for controlling operating sequences in a vehicle
US6393342B2 (en) 1999-12-30 2002-05-21 Robert Bosch Gmbh Method and device for controlling operating sequences in a vehicle
GB2357859B (en) * 1999-12-30 2002-09-11 Bosch Gmbh Robert Process and device for controlling operating sequences in a vehicle
EP1138918A1 (en) * 2000-04-01 2001-10-04 Robert Bosch GmbH Method and apparatus for providing control parameters to or within a control system
US6718250B2 (en) 2000-04-01 2004-04-06 Robert Bosch Gmbh Method and apparatus for providing control parameters to or within a control system
US10773684B2 (en) 2008-10-10 2020-09-15 Polaris Industries Inc. Vehicle security system
US8994494B2 (en) 2008-10-10 2015-03-31 Polaris Industries Inc. Vehicle security system
US11772601B2 (en) 2008-10-10 2023-10-03 Polaris Industries Inc. Vehicle security system
US9324195B2 (en) 2013-02-26 2016-04-26 Polaris Industries Inc. Recreational vehicle interactive, telemetry, mapping, and trip planning system
US10584977B2 (en) 2013-02-26 2020-03-10 Polaris Industries Inc. Recreational vehicle interactive telemetry, mapping, and trip planning system
US10203220B2 (en) 2013-02-26 2019-02-12 Polaris Industries Inc. Recreational vehicle interactive telemetry, mapping, and trip planning system
US11209286B2 (en) 2013-02-26 2021-12-28 Polaris Industies Inc. Recreational vehicle interactive telemetry, mapping and trip planning system
US9644969B2 (en) 2013-02-26 2017-05-09 Polaris Industries Inc. Recreational vehicle interactive telemetry, mapping, and trip planning system
US11102612B2 (en) 2016-02-10 2021-08-24 Polaris Industries Inc. Recreational vehicle group management system
US11963064B2 (en) 2016-02-10 2024-04-16 Polaris Industries Inc. Recreational vehicle group management system
US11400997B2 (en) 2016-05-23 2022-08-02 Indian Motorcycle International, LLC Display systems and methods for a recreational vehicle
US11691688B2 (en) 2016-05-23 2023-07-04 Indian Motorcycle International, LLC Display systems and methods for a recreational vehicle
US11919597B2 (en) 2016-05-23 2024-03-05 Indian Motorcycle International, LLC Display systems and methods for a recreational vehicle

Also Published As

Publication number Publication date
DE4012003C2 (en) 1993-08-12
DE4012003A1 (en) 1990-10-18
GB9007842D0 (en) 1990-06-06
JPH02275047A (en) 1990-11-09

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)