GB1496784A - Rate of change of speed sensors - Google Patents

Rate of change of speed sensors

Info

Publication number
GB1496784A
GB1496784A GB1152774A GB1152774A GB1496784A GB 1496784 A GB1496784 A GB 1496784A GB 1152774 A GB1152774 A GB 1152774A GB 1152774 A GB1152774 A GB 1152774A GB 1496784 A GB1496784 A GB 1496784A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
housing
chamber
accelerometer
deceleration
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
GB1152774A
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.)
Honeywell UK Ltd
Original Assignee
Bendix Westinghouse Ltd
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 Bendix Westinghouse Ltd filed Critical Bendix Westinghouse Ltd
Priority to GB1152774A priority Critical patent/GB1496784A/en
Publication of GB1496784A publication Critical patent/GB1496784A/en
Expired 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
    • G01P15/03—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means
    • G01P15/032—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means by measuring the displacement of a movable inertial mass
    • G01P15/036—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means by measuring the displacement of a movable inertial mass for indicating predetermined acceleration values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

1496784 Accelerometers BENDIX WESTINGHOUSE Ltd 28 Feb 1975 [14 March 1974] 11527/74 Heading G1K An accelerometer comprises a housing 5 rotatably mounted on a support 1 and formed by inner, intermediate, and outer body parts 6, 22, 7, the intermediate part 22 defining with the outer part 7 a helical passage 8 coaxial with the axis of rotation of the housing, the helical passage 8 being filled with hydraulic fluid and having its ends connected to respective chambers 11, 14 on opposite sides of a diaphragm 10, angular acceleration or deceleration of the housing causing a pressure difference between the ends of the helical passage 8, and the resultant movement of the diaphragm 10 being transmitted by push rods 17, 18 to the exterior of the accelerometer. The accelerometer is intended for use in a vehicle to detect wheel skidding while braking, the support 1 being mounted by a flange 2 on a part of the vehicle structure, while the housing 5 is drivingly connected to a wheel or axle by a boss 21 on the part 7. A spring 19 urges the rod 18 towards the diaphragm 10. The hydraulic connections are arranged so that when deceleration of the wheel occurs, the pressure in chamber 11 is higher than that in chamber 14, and the diaphragm areas and spring 19 force are such that when the deceleration exceeds a pre-set level, indicating skidding, the rod 18 is moved to pass a signal to a modulator valve of the vehicle braking system. A greater area of the diaphragm is exposed to the chamber 11 once the diaphragm has moved out of contact with an annular seating 23.
GB1152774A 1975-02-28 1975-02-28 Rate of change of speed sensors Expired GB1496784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1152774A GB1496784A (en) 1975-02-28 1975-02-28 Rate of change of speed sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1152774A GB1496784A (en) 1975-02-28 1975-02-28 Rate of change of speed sensors

Publications (1)

Publication Number Publication Date
GB1496784A true GB1496784A (en) 1978-01-05

Family

ID=9987879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1152774A Expired GB1496784A (en) 1975-02-28 1975-02-28 Rate of change of speed sensors

Country Status (1)

Country Link
GB (1) GB1496784A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283098A (en) * 1993-10-20 1995-04-26 Autoliv Dev Accelerometer using inertia mass in a fluid e.g.air

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283098A (en) * 1993-10-20 1995-04-26 Autoliv Dev Accelerometer using inertia mass in a fluid e.g.air

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee