GB968041A - Improvements in or relating to apparatus for testing or monitoring the value of a quantity - Google Patents

Improvements in or relating to apparatus for testing or monitoring the value of a quantity

Info

Publication number
GB968041A
GB968041A GB223662A GB223662A GB968041A GB 968041 A GB968041 A GB 968041A GB 223662 A GB223662 A GB 223662A GB 223662 A GB223662 A GB 223662A GB 968041 A GB968041 A GB 968041A
Authority
GB
United Kingdom
Prior art keywords
coils
coil
wheel
vehicle
oscillators
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
GB223662A
Inventor
Alan John Bayliss
Alfred Bloch
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB223662A priority Critical patent/GB968041A/en
Publication of GB968041A publication Critical patent/GB968041A/en
Expired 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
    • B60C23/0427—Near field transmission with inductive or capacitive coupling means
    • B60C23/0428—Near field transmission with inductive or capacitive coupling means using passive wheel mounted resonance circuits
    • 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
    • B60C23/0427—Near field transmission with inductive or capacitive coupling means
    • B60C23/043—Near field transmission with inductive or capacitive coupling means using transformer type signal transducers, e.g. rotary transformers

Landscapes

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

Abstract

968,041. Monitoring tyre pressures. GENERAL ELECTRIC CO. Ltd. Jan. 15, 1963 [Jan. 22, 1962], No. 2236/62. Heading B7C. A device 5, responsive to tyre pressure, controls contacts 6 in a circuit comprising coils 4, 7 and non-linear impedance 8 mounted on a rotating vehicle wheel. Electrical oscillations supplied by oscillators 2, 3 on the vehicle chassis (Fig. 1) are transmitted by electromagnetic coupling from stationary coil 1 to moving coil 4 when the coils are adjacent and, if contacts 6 are closed by an excessively low tyre pressure, the impedance 8 generates oscillations, of different frequency from those supplied, which are transmitted by electromagnetic coupling from coil 7 to stationary coil 9 and then through filter 10, amplifier 11 to actuate a detector 12, which gives visual or audible warning in the driving cab and may reduce the speed of the vehicle. In Fig. 1 oscillators 2, 3 supply two different frequencies (30, 40 kc./s.) which are heterodyned by the crystal diode 8 to produce a frequency (70 kc./s.) which filter 11 is tuned to pass. Coils 1, 9 and 4, 7 may be mounted adjacently on chassis and wheel, so that coils 1, 4 and 7, 9 couple at the same time during the wheel's rotation. Fig. 3 (not shown) illustrates an arrangement with only one coil each on chassis and wheel, to couple oscillations in both directions. The non-linear impedance may act as a frequency multiplier instead of a mixer, in which case only one oscillator is needed. On a vehicle, the oscillators, filter, amplifier and detector may be common to several wheels each having the coils, diode &c.
GB223662A 1962-01-22 1962-01-22 Improvements in or relating to apparatus for testing or monitoring the value of a quantity Expired GB968041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB223662A GB968041A (en) 1962-01-22 1962-01-22 Improvements in or relating to apparatus for testing or monitoring the value of a quantity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB223662A GB968041A (en) 1962-01-22 1962-01-22 Improvements in or relating to apparatus for testing or monitoring the value of a quantity

Publications (1)

Publication Number Publication Date
GB968041A true GB968041A (en) 1964-08-26

Family

ID=9736002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB223662A Expired GB968041A (en) 1962-01-22 1962-01-22 Improvements in or relating to apparatus for testing or monitoring the value of a quantity

Country Status (1)

Country Link
GB (1) GB968041A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2175067A1 (en) * 1972-03-08 1973-10-19 Pirelli
EP0045401A2 (en) * 1980-08-05 1982-02-10 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Transmission method for variable measurement values from vehicle wheels
FR2493775A1 (en) * 1980-11-13 1982-05-14 Dba Remote tyre pressure sensor for motor vehicle - has coupled coils mounted on car structure and wheel respectively, with latter actuated by pressure sensitive switch
EP0067547A2 (en) * 1981-05-26 1982-12-22 Peter A. Hochstein Condition monitoring system (tyre pressure)
GB2172708A (en) * 1985-02-01 1986-09-24 Porsche Ag Wireless transmission of measuring signals, eg. tyre pressures }or temperatures}

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2175067A1 (en) * 1972-03-08 1973-10-19 Pirelli
EP0045401A2 (en) * 1980-08-05 1982-02-10 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Transmission method for variable measurement values from vehicle wheels
EP0045401A3 (en) * 1980-08-05 1982-02-17 Bayerische Motoren Werke Aktiengesellschaft Transmission method for variable measurement values from vehicle wheels
US4567459A (en) * 1980-08-05 1986-01-28 Bayerische Motoren Werke Aktiengesellschaft Transmission method for variable measured values from vehicle wheels utilizing ambient temperature compensation
FR2493775A1 (en) * 1980-11-13 1982-05-14 Dba Remote tyre pressure sensor for motor vehicle - has coupled coils mounted on car structure and wheel respectively, with latter actuated by pressure sensitive switch
EP0067547A2 (en) * 1981-05-26 1982-12-22 Peter A. Hochstein Condition monitoring system (tyre pressure)
EP0067547A3 (en) * 1981-05-26 1984-01-18 Peter A. Hochstein Condition monitoring system (tyre pressure)
EP0201149A2 (en) * 1981-05-26 1986-11-12 Peter A. Hochstein Condition monitoring system (tyre pressure)
EP0201149A3 (en) * 1981-05-26 1987-02-25 Peter A. Hochstein Condition monitoring system (tyre pressure)
GB2172708A (en) * 1985-02-01 1986-09-24 Porsche Ag Wireless transmission of measuring signals, eg. tyre pressures }or temperatures}

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