SE8804088D0 - TIRE PRESSURE SENSOR FOR MOTOR VEHICLE - Google Patents
TIRE PRESSURE SENSOR FOR MOTOR VEHICLEInfo
- Publication number
- SE8804088D0 SE8804088D0 SE8804088A SE8804088A SE8804088D0 SE 8804088 D0 SE8804088 D0 SE 8804088D0 SE 8804088 A SE8804088 A SE 8804088A SE 8804088 A SE8804088 A SE 8804088A SE 8804088 D0 SE8804088 D0 SE 8804088D0
- Authority
- SE
- Sweden
- Prior art keywords
- pressure sensor
- tyre pressure
- tyre
- pressure chamber
- proposed
- Prior art date
Links
- 239000000919 ceramic Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
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>
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 true SE8804088D0 (en) | 1988-11-11 |
SE8804088L 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)
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)
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 |
ATE49807T1 (en) * | 1985-03-27 | 1990-02-15 | 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 |
-
1987
- 1987-11-12 DE DE3738413A patent/DE3738413C1/en not_active Expired
-
1988
- 1988-10-14 FR FR888813556A patent/FR2623140B1/en not_active Expired - Lifetime
- 1988-11-09 IT IT8822567A patent/IT1229802B/en active
- 1988-11-11 SE SE8804088A patent/SE466592B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3738413C1 (en) | 1989-02-16 |
SE466592B (en) | 1992-03-09 |
FR2623140A1 (en) | 1989-05-19 |
IT8822567A0 (en) | 1988-11-09 |
SE8804088L (en) | 1989-05-13 |
IT1229802B (en) | 1991-09-13 |
FR2623140B1 (en) | 1990-08-17 |
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Legal Events
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NUG | Patent has lapsed |
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