GB1458437A - Central warning apparatus for vehicles - Google Patents

Central warning apparatus for vehicles

Info

Publication number
GB1458437A
GB1458437A GB1629374A GB1629374A GB1458437A GB 1458437 A GB1458437 A GB 1458437A GB 1629374 A GB1629374 A GB 1629374A GB 1629374 A GB1629374 A GB 1629374A GB 1458437 A GB1458437 A GB 1458437A
Authority
GB
United Kingdom
Prior art keywords
sensors
lamps
alarm
discriminators
vehicle
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.)
Expired
Application number
GB1629374A
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.)
Denso Corp
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
NipponDenso Co 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 Toyota Motor Corp, NipponDenso Co Ltd filed Critical Toyota Motor Corp
Priority to GB1629374A priority Critical patent/GB1458437A/en
Publication of GB1458437A publication Critical patent/GB1458437A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0816—Indicating performance data, e.g. occurrence of a malfunction
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/126—Checking intermittently signalling or alarm systems of annunciator circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Emergency Alarm Devices (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

1458437 Alarm systems NIPPONDENSO CO Ltd and TOYOTA JIDOSHA KOGYO KK 11 April 1974 16293/74 Heading G4H A central warning apparatus for a vehicle comprises a plurality of sensors associated with respective portions of the vehicle to be monitored and connected via discriminators to respective display means, the discriminators also feeding main warning means via an OR gate, there being a checking circuit for causing the display means to produce abnormality indications even when the sensors are producing normal outputs. Fig. 5 shows on/off sensors (contacts) 1 and analogue sensors (thermistors) 1<SP>1</SP>. An alarm condition which opens any of contacts 1 lights a corresponding alarm lamp 5 by rendering conducting a respective transistor 10 in a discriminator 2. An alarm condition which actuates a thermistor 1<SP>1</SP> sufficiently, lights a corresponding lamp 5 via a respective transistor 20 in a discriminator 2. Buzzers may replace the lamps. Any of the alarm conditions will actuate the flasher unit of a main warning lamp via an OR gate 32, 33, 34. A timer 7a actuated by the vehicle ignition switch changes over contacts of a relay 15 for a period to light all the lamps to permit the vehicle driver to check that all are functioning, the lamps 5 being lit via the circuitry of the discriminators 2 so these are checked also. The sensors may be divided into two groups (urgent and not urgent) with respective OR gates and respective main warning lamps. Fig. 3 shows a modification for one on/off sensor 1 and the associated circuitry, the checking unit 7 being actuated by a manual switch.
GB1629374A 1974-04-11 1974-04-11 Central warning apparatus for vehicles Expired GB1458437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1629374A GB1458437A (en) 1974-04-11 1974-04-11 Central warning apparatus for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1629374A GB1458437A (en) 1974-04-11 1974-04-11 Central warning apparatus for vehicles

Publications (1)

Publication Number Publication Date
GB1458437A true GB1458437A (en) 1976-12-15

Family

ID=10074715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1629374A Expired GB1458437A (en) 1974-04-11 1974-04-11 Central warning apparatus for vehicles

Country Status (1)

Country Link
GB (1) GB1458437A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465999A1 (en) * 1979-09-25 1981-03-27 Nissan Motor MULTI-FUNCTIONAL MEASURING APPARATUS FOR VEHICLES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465999A1 (en) * 1979-09-25 1981-03-27 Nissan Motor MULTI-FUNCTIONAL MEASURING APPARATUS FOR VEHICLES
US4356470A (en) 1979-09-25 1982-10-26 Nissan Motor Co., Ltd. Multifunction electronic meter for vehicle

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19940410