SE8804088L - TIRE PRESSURE SENSOR FOR MOTOR VEHICLE - Google Patents

TIRE PRESSURE SENSOR FOR MOTOR VEHICLE

Info

Publication number
SE8804088L
SE8804088L SE8804088A SE8804088A SE8804088L SE 8804088 L SE8804088 L SE 8804088L SE 8804088 A SE8804088 A SE 8804088A SE 8804088 A SE8804088 A SE 8804088A SE 8804088 L SE8804088 L SE 8804088L
Authority
SE
Sweden
Prior art keywords
pressure sensor
tyre pressure
tyre
pressure chamber
proposed
Prior art date
Application number
SE8804088A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE466592B (en
SE8804088D0 (en
Inventor
K Neidhard
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of SE8804088D0 publication Critical patent/SE8804088D0/en
Publication of SE8804088L publication Critical patent/SE8804088L/en
Publication of SE466592B publication Critical patent/SE466592B/en

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

Landscapes

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

Abstract

A tyre pressure sensor (10) for motor vehicles is proposed which is to be attached to the circumference of a wheel rim and has a switching element which is to be acted on by the air pressure in the tyre and is arranged in a reference pressure chamber (11). In order to be able to monitor a plurality of threshold values of the tyre pressure by means of a tyre pressure sensor which is cost-effective to manufacture, it is proposed to close off the reference pressure chamber (11) with respect to the tyre pressure by means of a diaphragm which consists of a ceramic film (13) and bears on its inside a plurality of contact faces (17, 18) which are arranged offset from the outer edge with different spacing and are each connected via a conductor track (19, 20) to an oscillating circuit (21). They interact with appropriately arranged countercontact faces (22, 23) which are arranged in the state of rest a short distance apart on the face of the reference pressure chamber (11) lying opposite the contact faces and are also connected to the oscillating circuit (21). Using this tyre pressure sensor, the tyre pressure can be monitored within a desired bandwidth by the different threshold values of the tyre pressure sensor (10) and the functional reliability of the tyre pressure sensor can be tested (Figure 1). <IMAGE>
SE8804088A 1987-11-12 1988-11-11 TIRE PRESSURE SENSOR FOR MOTOR VEHICLE SE466592B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3738413A DE3738413C1 (en) 1987-11-12 1987-11-12 Tyre pressure sensor for motor vehicles

Publications (3)

Publication Number Publication Date
SE8804088D0 SE8804088D0 (en) 1988-11-11
SE8804088L true SE8804088L (en) 1989-05-13
SE466592B SE466592B (en) 1992-03-09

Family

ID=6340335

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8804088A SE466592B (en) 1987-11-12 1988-11-11 TIRE PRESSURE SENSOR FOR MOTOR VEHICLE

Country Status (4)

Country Link
DE (1) DE3738413C1 (en)
FR (1) FR2623140B1 (en)
IT (1) IT1229802B (en)
SE (1) SE466592B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723510A1 (en) * 1987-07-16 1989-01-26 Bosch Gmbh Robert TIRE PRESSURE SENSOR FOR MOTOR VEHICLES
DE3930479A1 (en) * 1989-09-12 1991-03-14 Rainer Achterholt VALVE WITH SIGNAL GENERATING DEVICE FOR VEHICLE TIRE
DE3930480A1 (en) * 1989-09-12 1991-03-14 Rainer Achterholt A VALVE CAP FOR A TIRE GENERATING A PRESSURE RELEASE SIGNAL
DE10211992C2 (en) * 2001-05-04 2003-11-27 Trafag Ag Maennedorf Pressure sensor for pressure detection in an engine combustion chamber and method for its production

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267233A (en) * 1964-01-31 1966-08-16 Sperry Rand Corp Pneumatic transducer
ES417854A1 (en) * 1973-08-13 1976-08-01 Copreci Ind Sci Construction of electrical switches sensitive to multiple pressure values
FR2308518A1 (en) * 1975-04-21 1976-11-19 Michelin & Cie IMPROVEMENTS TO DETECTORS OF VARIATION IN TIRE INFLATION PRESSURE
US4458117A (en) * 1982-08-25 1984-07-03 General Electric Company Control device and methods of operating such
DE3315605A1 (en) * 1983-04-29 1984-10-31 Standard Elektrik Lorenz Ag, 7000 Stuttgart Pressure sensor
DE3412949A1 (en) * 1984-04-06 1985-10-17 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart DEVICE FOR CONTROLLING THE AIR PRESSURE OF VEHICLE TIRES
DE3668499D1 (en) * 1985-03-27 1990-03-01 Siemens Ag CAPACITIVE PRESSURE SENSOR.
DE8529136U1 (en) * 1985-10-12 1987-02-12 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt Push button device

Also Published As

Publication number Publication date
SE466592B (en) 1992-03-09
DE3738413C1 (en) 1989-02-16
FR2623140A1 (en) 1989-05-19
FR2623140B1 (en) 1990-08-17
SE8804088D0 (en) 1988-11-11
IT8822567A0 (en) 1988-11-09
IT1229802B (en) 1991-09-13

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