FR2455519A3 - Motor vehicle tyre pressure signalling - using pressure to position magnetic detector w.r.t. coil connected to alarm - Google Patents

Motor vehicle tyre pressure signalling - using pressure to position magnetic detector w.r.t. coil connected to alarm

Info

Publication number
FR2455519A3
FR2455519A3 FR7911528A FR7911528A FR2455519A3 FR 2455519 A3 FR2455519 A3 FR 2455519A3 FR 7911528 A FR7911528 A FR 7911528A FR 7911528 A FR7911528 A FR 7911528A FR 2455519 A3 FR2455519 A3 FR 2455519A3
Authority
FR
France
Prior art keywords
pressure
alarm
motor vehicle
piston
coil connected
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Withdrawn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
FR7911528A
Other languages
French (fr)
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.)
BOUHET MICHEL
Original Assignee
BOUHET MICHEL
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 BOUHET MICHEL filed Critical BOUHET MICHEL
Priority to FR7911528A priority Critical patent/FR2455519A3/en
Publication of FR2455519A3 publication Critical patent/FR2455519A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0425—Means comprising permanent magnets, e.g. Hall-effect or Reed-switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A magnetic detector operated by the deformation of a membrane due to pressure changes allows the pressure in a motor vehicle tyre to be signalled to the driver. This can operate an alarm when abnormal pressures are present while the vehicle is moving. The tyre pressure is applied to a pressure sensor via a small tube (1). This pressure deforms a metallic bellows (2) in a housing which communicates via a calibrated orifice (3) with a cylinder (4) to displace a piston (5). This assembly is filled with hydraulic fluid and the piston is displaced against the action of a spring (6). The piston is firmly attached to a small magnet (7) in an iron housing (8) and is visible through windows (A,B). A coil connected to an alarm allows differentiation of the magnet positions when abnormal pressures are present.
FR7911528A 1979-05-03 1979-05-03 Motor vehicle tyre pressure signalling - using pressure to position magnetic detector w.r.t. coil connected to alarm Withdrawn FR2455519A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7911528A FR2455519A3 (en) 1979-05-03 1979-05-03 Motor vehicle tyre pressure signalling - using pressure to position magnetic detector w.r.t. coil connected to alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7911528A FR2455519A3 (en) 1979-05-03 1979-05-03 Motor vehicle tyre pressure signalling - using pressure to position magnetic detector w.r.t. coil connected to alarm

Publications (1)

Publication Number Publication Date
FR2455519A3 true FR2455519A3 (en) 1980-11-28

Family

ID=9225158

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7911528A Withdrawn FR2455519A3 (en) 1979-05-03 1979-05-03 Motor vehicle tyre pressure signalling - using pressure to position magnetic detector w.r.t. coil connected to alarm

Country Status (1)

Country Link
FR (1) FR2455519A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208869A1 (en) * 1982-03-11 1983-09-22 Bayerische Motoren Werke AG, 8000 München Analog tyre pressure signal generator for motor vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208869A1 (en) * 1982-03-11 1983-09-22 Bayerische Motoren Werke AG, 8000 München Analog tyre pressure signal generator for motor vehicles

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Legal Events

Date Code Title Description
ST Notification of lapse