FR2437651A1 - Microprocessor controlled safety monitor in motor vehicle - re-runs program to avoid erroneous operation due to parasitic disturbances - Google Patents

Microprocessor controlled safety monitor in motor vehicle - re-runs program to avoid erroneous operation due to parasitic disturbances

Info

Publication number
FR2437651A1
FR2437651A1 FR7924336A FR7924336A FR2437651A1 FR 2437651 A1 FR2437651 A1 FR 2437651A1 FR 7924336 A FR7924336 A FR 7924336A FR 7924336 A FR7924336 A FR 7924336A FR 2437651 A1 FR2437651 A1 FR 2437651A1
Authority
FR
France
Prior art keywords
monitoring system
motor vehicle
program
microprocessor controlled
monostable
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.)
Granted
Application number
FR7924336A
Other languages
French (fr)
Other versions
FR2437651B1 (en
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
Priority claimed from DE2842393A external-priority patent/DE2842393C2/en
Priority claimed from DE19792903638 external-priority patent/DE2903638A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2437651A1 publication Critical patent/FR2437651A1/en
Application granted granted Critical
Publication of FR2437651B1 publication Critical patent/FR2437651B1/fr
Granted 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
    • G05B19/048—Monitoring; Safety
    • 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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • G06F11/1417—Boot up procedures

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Quality & Reliability (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

The program controlled monitoring system, such as a microprocursor system in a motor vehicle, can indicate an apparent failure due to parasitic disturbances. This is resolved by running the program again before operating any safety devices. The microprocessor controlled monitoring system (10) contains a monostable (101) whose inverting output is connected to another monostable (11). A JK bistable (13) acts as a coincidence detector whose output is connected via an OR gate (14) to a safety switch circuit (15). When the monitoring system monostable returns to its original state a short pulse is generated which passes via an RC circuit (18, 19) to a NAND gate (20). This causes the monitoring system to restart its program. An RC tuning circuit (22, 23) is switched from the monitor system to reset the JK bistable.
FR7924336A 1978-09-29 1979-09-28 Microprocessor controlled safety monitor in motor vehicle - re-runs program to avoid erroneous operation due to parasitic disturbances Granted FR2437651A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2842393A DE2842393C2 (en) 1977-12-23 1978-09-29 Process for the production of gold-colored coatings
DE19792903638 DE2903638A1 (en) 1979-01-31 1979-01-31 Microprocessor controlled safety monitor in motor vehicle - re-runs program to avoid erroneous operation due to parasitic disturbances

Publications (2)

Publication Number Publication Date
FR2437651A1 true FR2437651A1 (en) 1980-04-25
FR2437651B1 FR2437651B1 (en) 1985-03-22

Family

ID=25775880

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7924336A Granted FR2437651A1 (en) 1978-09-29 1979-09-28 Microprocessor controlled safety monitor in motor vehicle - re-runs program to avoid erroneous operation due to parasitic disturbances

Country Status (1)

Country Link
FR (1) FR2437651A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525367A1 (en) * 1982-04-16 1983-10-21 Bosch Gmbh Robert CIRCUIT FOR MONITORING ELECTRONIC CALCULATION SUBSYSTEMS WITH AN INITIAL STATEMENT CIRCUIT
EP0098915A2 (en) * 1982-06-23 1984-01-25 WABCO Westinghouse Fahrzeugbremsen GmbH Electronic control
FR2536878A1 (en) * 1982-11-29 1984-06-01 Tektronix Inc AUTOMATIC TRANSFER CIRCUIT IN THE ACTIVITY OF A PROCESSOR
EP0125682A2 (en) * 1983-05-17 1984-11-21 Nissan Motor Co., Ltd. Digital control system with error monitor operative upon starting system operation
WO1985001597A1 (en) * 1983-10-03 1985-04-11 Johnson Service Company Controller for combustible fuel burner
WO1986000155A1 (en) * 1984-06-09 1986-01-03 Robert Bosch Gmbh Resetting circuit for a microprocessor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072852A (en) * 1976-08-23 1978-02-07 Honeywell Inc. Digital computer monitoring and restart circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072852A (en) * 1976-08-23 1978-02-07 Honeywell Inc. Digital computer monitoring and restart circuit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525367A1 (en) * 1982-04-16 1983-10-21 Bosch Gmbh Robert CIRCUIT FOR MONITORING ELECTRONIC CALCULATION SUBSYSTEMS WITH AN INITIAL STATEMENT CIRCUIT
EP0098915A2 (en) * 1982-06-23 1984-01-25 WABCO Westinghouse Fahrzeugbremsen GmbH Electronic control
EP0098915A3 (en) * 1982-06-23 1985-05-22 Wabco Westinghouse Fahrzeugbremsen Gmbh Electronic control
FR2536878A1 (en) * 1982-11-29 1984-06-01 Tektronix Inc AUTOMATIC TRANSFER CIRCUIT IN THE ACTIVITY OF A PROCESSOR
EP0125682A2 (en) * 1983-05-17 1984-11-21 Nissan Motor Co., Ltd. Digital control system with error monitor operative upon starting system operation
EP0125682A3 (en) * 1983-05-17 1987-09-02 Nissan Motor Co., Ltd. Digital control system with error monitor operative upon starting system operation
WO1985001597A1 (en) * 1983-10-03 1985-04-11 Johnson Service Company Controller for combustible fuel burner
GB2161295A (en) * 1983-10-03 1986-01-08 Johnson Service Co Controller for combustible fuel burner
WO1986000155A1 (en) * 1984-06-09 1986-01-03 Robert Bosch Gmbh Resetting circuit for a microprocessor

Also Published As

Publication number Publication date
FR2437651B1 (en) 1985-03-22

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Legal Events

Date Code Title Description
ST Notification of lapse