GB1487276A - Vehicle ignition systems - Google Patents

Vehicle ignition systems

Info

Publication number
GB1487276A
GB1487276A GB5542/75A GB554275A GB1487276A GB 1487276 A GB1487276 A GB 1487276A GB 5542/75 A GB5542/75 A GB 5542/75A GB 554275 A GB554275 A GB 554275A GB 1487276 A GB1487276 A GB 1487276A
Authority
GB
United Kingdom
Prior art keywords
contact breaker
key
closes
contacts
switch
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
GB5542/75A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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 ASEA AB filed Critical ASEA AB
Publication of GB1487276A publication Critical patent/GB1487276A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

1487276 Preventing unauthorized use ASEA AB 10 Feb 1975 [11 Feb 1974] 5542/75 Heading F1B A vehicle ignition system includes two electrical switches 11, 12 operated by a key 10, which when turned closes switch 11 which connects the positive battery terminal to coil 13 and through the coil to contact breaker 18, the ignition circuit remaining inoperative since the contact breaker is shunted by the normally closed switch 22. Key 10 also momentarily operates switch 12 which energizes signal generator 15 to produce a series of pulses which are detected by device 17 which in turn provides an output signal to energize relay 21. Movement of the relay closes holding contacts 24, closes contacts 23 to earth the contact breaker and opens contacts 22 to remove the shunt across the contact breaker. The system can therefore be energized only by using the correct key or corresponding member e.g. a card.
GB5542/75A 1974-02-11 1975-02-10 Vehicle ignition systems Expired GB1487276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7401745A SE391900B (en) 1974-02-11 1974-02-11 DEVICE FOR VEHICLE IGNITION SYSTEM

Publications (1)

Publication Number Publication Date
GB1487276A true GB1487276A (en) 1977-09-28

Family

ID=20320164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5542/75A Expired GB1487276A (en) 1974-02-11 1975-02-10 Vehicle ignition systems

Country Status (4)

Country Link
DE (1) DE2503266C3 (en)
GB (1) GB1487276A (en)
IT (1) IT1030107B (en)
SE (1) SE391900B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677663A (en) * 1992-06-18 1997-10-14 British Technology Group Limited Security enabling and switching devices

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989007815A1 (en) * 1988-02-18 1989-08-24 Australian Security, Technology And Development Pt Security apparatus
DE4405708C2 (en) * 1994-02-23 1998-10-29 Daimler Benz Ag Motor vehicle with theft protection through engine start blocking

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1750538A (en) * 1927-08-05 1930-03-11 Delco Remy Corp Lock switch
US3515891A (en) * 1968-08-15 1970-06-02 Theodore M Margeson Electric selective control circuit
GB1258120A (en) * 1969-10-24 1971-12-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677663A (en) * 1992-06-18 1997-10-14 British Technology Group Limited Security enabling and switching devices

Also Published As

Publication number Publication date
SE7401745L (en) 1975-08-12
DE2503266A1 (en) 1975-08-14
IT1030107B (en) 1979-03-30
DE2503266C3 (en) 1981-10-15
SE391900B (en) 1977-03-07
DE2503266B2 (en) 1981-01-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee