FR2271063A1 - Tyre pressure monitor for car - with electronic wheel speed monitor and comparator for actual car speed - Google Patents

Tyre pressure monitor for car - with electronic wheel speed monitor and comparator for actual car speed

Info

Publication number
FR2271063A1
FR2271063A1 FR7416459A FR7416459A FR2271063A1 FR 2271063 A1 FR2271063 A1 FR 2271063A1 FR 7416459 A FR7416459 A FR 7416459A FR 7416459 A FR7416459 A FR 7416459A FR 2271063 A1 FR2271063 A1 FR 2271063A1
Authority
FR
France
Prior art keywords
car
monitor
speed
comparator
tyre pressure
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.)
Granted
Application number
FR7416459A
Other languages
French (fr)
Other versions
FR2271063B3 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7416459A priority Critical patent/FR2271063A1/en
Priority to DE19752518816 priority patent/DE2518816A1/en
Publication of FR2271063A1 publication Critical patent/FR2271063A1/en
Application granted granted Critical
Publication of FR2271063B3 publication Critical patent/FR2271063B3/fr
Granted 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
    • B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/061—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by monitoring wheel speed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds

Abstract

Each wheel is fitted with an electronic monitor to determine the actual wheel speed and provide a signal for a comparator circuit, with the other input to the circuit coming from an accurately calculated vehicle speed. This is determined by a Doppler Radar system or an inertial sensor. If the measured signal differs from the reference signal by more than a set amount then a tyre pressure warning is activated. The system has no physical connections between the tyre and the circuit and can be incorporated as part of an anti-blocking control circuit.
FR7416459A 1974-05-13 1974-05-13 Tyre pressure monitor for car - with electronic wheel speed monitor and comparator for actual car speed Granted FR2271063A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7416459A FR2271063A1 (en) 1974-05-13 1974-05-13 Tyre pressure monitor for car - with electronic wheel speed monitor and comparator for actual car speed
DE19752518816 DE2518816A1 (en) 1974-05-13 1975-04-28 DEVICE FOR MEASURING AND DISPLAYING THE PRESSURE OF A TIRE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7416459A FR2271063A1 (en) 1974-05-13 1974-05-13 Tyre pressure monitor for car - with electronic wheel speed monitor and comparator for actual car speed

Publications (2)

Publication Number Publication Date
FR2271063A1 true FR2271063A1 (en) 1975-12-12
FR2271063B3 FR2271063B3 (en) 1977-03-11

Family

ID=9138743

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7416459A Granted FR2271063A1 (en) 1974-05-13 1974-05-13 Tyre pressure monitor for car - with electronic wheel speed monitor and comparator for actual car speed

Country Status (2)

Country Link
DE (1) DE2518816A1 (en)
FR (1) FR2271063A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0554131A1 (en) * 1992-01-31 1993-08-04 Honda Giken Kogyo Kabushiki Kaisha System and method for determining a reduction in the pneumatic tire pressure
EP0607695A1 (en) * 1992-12-24 1994-07-27 Sumitomo Rubber Industries Ltd. Method and device for detecting pneumatic abnormalities of a tyre
EP0607690A1 (en) * 1992-12-21 1994-07-27 Sumitomo Rubber Industries Limited Method and device for detecting pneumatic abnormalities of tyre
EP2511108A1 (en) * 2011-04-14 2012-10-17 Robert Bosch Gmbh Tire pressure monitoring system and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236520A1 (en) * 1982-10-02 1984-04-05 Robert Bosch Gmbh, 7000 Stuttgart Device for indicating the state of vehicle tyres
DE4025210A1 (en) * 1990-08-09 1992-02-13 Jusupov Malik Sarifovic Prof TIRE PRESSURE GAUGE THAT CHECKS AND DISPLAYS THE AIR PRESSURE IN THE DRIVING VEHICLE
DE4114047B4 (en) * 1991-04-29 2006-06-01 Wabco Gmbh & Co.Ohg Electronic braking or starting control system for vehicles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0554131A1 (en) * 1992-01-31 1993-08-04 Honda Giken Kogyo Kabushiki Kaisha System and method for determining a reduction in the pneumatic tire pressure
US5343741A (en) * 1992-01-31 1994-09-06 Honda Giken Kogyo Kabushiki Kaisha System for determining pneumatic tire pressure for motor vehicle by comparing actual to adequate wheel rotational speed
EP0607690A1 (en) * 1992-12-21 1994-07-27 Sumitomo Rubber Industries Limited Method and device for detecting pneumatic abnormalities of tyre
US5442331A (en) * 1992-12-21 1995-08-15 Sumitomo Rubber Industries, Ltd. Method and device for detecting a deflated tire by comparing angular velocity and forward/backward speed data with a data table
EP0607695A1 (en) * 1992-12-24 1994-07-27 Sumitomo Rubber Industries Ltd. Method and device for detecting pneumatic abnormalities of a tyre
AU663018B2 (en) * 1992-12-24 1995-09-21 Sumitomo Rubber Industries, Ltd. Method and device for detecting pneumatic abnormalities of tyre
US5483220A (en) * 1992-12-24 1996-01-09 Sumitomo Rubber Industries, Ltd. Detecting a deflated tire by comparing angular velocity data of all wheels, a data table, and the directly-measured pressure of a single tire
US5524482A (en) * 1992-12-24 1996-06-11 Sumitomo Rubber Industries, Ltd. Detecting a deflated vehicle tire by comparing angular velocity data of all wheels, a data table, and the directly-measured pressure of a single tire
EP2511108A1 (en) * 2011-04-14 2012-10-17 Robert Bosch Gmbh Tire pressure monitoring system and method
US8612088B2 (en) 2011-04-14 2013-12-17 Robert Bosch Gmbh Tire pressure monitoring systems and methods

Also Published As

Publication number Publication date
FR2271063B3 (en) 1977-03-11
DE2518816A1 (en) 1975-12-04

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Legal Events

Date Code Title Description
ST Notification of lapse