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FR2667031B1 - Detecteur de variation de vitesse avec sollicitation par ressort perfectionne. - Google Patents

Detecteur de variation de vitesse avec sollicitation par ressort perfectionne.

Info

Publication number
FR2667031B1
FR2667031B1 FR9111764A FR9111764A FR2667031B1 FR 2667031 B1 FR2667031 B1 FR 2667031B1 FR 9111764 A FR9111764 A FR 9111764A FR 9111764 A FR9111764 A FR 9111764A FR 2667031 B1 FR2667031 B1 FR 2667031B1
Authority
FR
France
Prior art keywords
speed variation
spring stress
improved spring
variation detector
detector
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 - Fee Related
Application number
FR9111764A
Other languages
English (en)
Other versions
FR2667031A1 (fr
Inventor
Allen Breed
Ted Thuen
Carl Grossi
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.)
Breed Automotive Technology Inc
Original Assignee
Breed Automotive Technology Inc
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 Breed Automotive Technology Inc filed Critical Breed Automotive Technology Inc
Publication of FR2667031A1 publication Critical patent/FR2667031A1/fr
Application granted granted Critical
Publication of FR2667031B1 publication Critical patent/FR2667031B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/135—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by making use of contacts which are actuated by a movable inertial mass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H01H35/141—Details
    • H01H35/142—Damping means to avoid unwanted response

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Air Bags (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
FR9111764A 1990-09-24 1991-09-24 Detecteur de variation de vitesse avec sollicitation par ressort perfectionne. Expired - Fee Related FR2667031B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/587,262 US5098122A (en) 1989-12-06 1990-09-24 Velocity change sensor with improved spring bias

Publications (2)

Publication Number Publication Date
FR2667031A1 FR2667031A1 (fr) 1992-03-27
FR2667031B1 true FR2667031B1 (fr) 1994-01-14

Family

ID=24349069

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9111764A Expired - Fee Related FR2667031B1 (fr) 1990-09-24 1991-09-24 Detecteur de variation de vitesse avec sollicitation par ressort perfectionne.

Country Status (8)

Country Link
US (1) US5098122A (fr)
JP (1) JP3160026B2 (fr)
CA (1) CA2052025C (fr)
DE (1) DE4130897C2 (fr)
FR (1) FR2667031B1 (fr)
GB (1) GB2249871B (fr)
IT (1) IT1251210B (fr)
SE (1) SE514374C2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322325A (en) * 1989-10-19 1994-06-21 Breed Automotive Technology, Inc. Safing velocity change sensor
US5178410A (en) * 1991-06-14 1993-01-12 Breed Automotive Technology, Inc. Velocity change sensor with lateral shock absorber
FR2681695B1 (fr) * 1991-09-24 1997-01-10 Breed Automotive Tech Detecteur de variation de vitesse de securite.
DE4140691A1 (de) * 1991-12-10 1993-06-17 Trw Repa Gmbh Fahrzeugsensitiver mechanischer kontaktgeber
US6149190A (en) * 1993-05-26 2000-11-21 Kionix, Inc. Micromechanical accelerometer for automotive applications
US6199874B1 (en) 1993-05-26 2001-03-13 Cornell Research Foundation Inc. Microelectromechanical accelerometer for automotive applications
US5472231A (en) * 1994-04-25 1995-12-05 France; John J. Retrofit airbag system for vehicles
JPH08105911A (ja) * 1994-10-06 1996-04-23 Nippon Soken Inc 衝突検出装置
US5642902A (en) * 1995-09-14 1997-07-01 France; John Josh Retrofit airbag system for vehicles
US5845730A (en) * 1996-12-31 1998-12-08 Breed Automotive Technology, Inc. Electro-mechanical accelerometer to actuate a vehicular safety device
US5756948A (en) * 1996-12-31 1998-05-26 Breed Automotive Technology, Inc. Side-impact electro-mechanical accelerometer to actuate a vehicular safety device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141936A (en) * 1962-10-17 1964-07-21 John M Boyle Conductive springs and ball acceleration switch
US3509299A (en) * 1968-11-25 1970-04-28 Garrett Corp Acceleration sensor switch
US3623449A (en) * 1969-08-15 1971-11-30 Vexiler Inc Impact acceleration indicator
US3655929A (en) * 1970-10-23 1972-04-11 Ford Motor Co Device for detecting and signalling a change of more than a prescribed amount in the rate of movement of an object
US3812726A (en) * 1972-09-28 1974-05-28 Technar Inc Velocity responsive apparatus
US3889130A (en) * 1973-06-04 1975-06-10 Breed Corp Mass in liquid vehicular crash sensor
US4116132A (en) * 1976-12-17 1978-09-26 Technar Incorporated Inertial sensors
SE402557B (sv) * 1977-01-13 1978-07-10 Foerenade Fabriksverken Kollisionsdetektor
US4329549A (en) 1980-04-29 1982-05-11 Breed Corporation Magnetically biased velocity change sensor
US4594485A (en) * 1985-04-04 1986-06-10 Brown Jr Milton F Impact sensor
US4816627A (en) * 1987-12-24 1989-03-28 Ford Motor Company Fluid damped acceleration sensor
US4900880A (en) * 1988-08-15 1990-02-13 Automotive Technologies International, Inc. Gas damped crash sensor
US4857680A (en) * 1988-12-22 1989-08-15 Ford Motor Company Acceleration sensor

Also Published As

Publication number Publication date
SE9102744D0 (sv) 1991-09-23
SE9102744L (sv) 1992-03-25
GB2249871B (en) 1994-09-21
GB2249871A (en) 1992-05-20
ITTO910714A1 (it) 1993-03-20
ITTO910714A0 (it) 1991-09-20
IT1251210B (it) 1995-05-04
DE4130897C2 (de) 1997-05-15
GB9118987D0 (en) 1991-10-23
CA2052025C (fr) 1995-10-31
CA2052025A1 (fr) 1992-03-25
JP3160026B2 (ja) 2001-04-23
DE4130897A1 (de) 1992-03-26
JPH0682470A (ja) 1994-03-22
US5098122A (en) 1992-03-24
FR2667031A1 (fr) 1992-03-27
SE514374C2 (sv) 2001-02-19

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Legal Events

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