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GB1306699A - Electric generators - Google Patents

Electric generators

Info

Publication number
GB1306699A
GB1306699A GB4665470A GB4665470A GB1306699A GB 1306699 A GB1306699 A GB 1306699A GB 4665470 A GB4665470 A GB 4665470A GB 4665470 A GB4665470 A GB 4665470A GB 1306699 A GB1306699 A GB 1306699A
Authority
GB
United Kingdom
Prior art keywords
coils
disc
core
voltages
output
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
GB4665470A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1306699A publication Critical patent/GB1306699A/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
    • G01P15/003—Kinematic accelerometers, i.e. measuring acceleration in relation to an external reference frame, e.g. Ferratis accelerometers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1705—Braking or traction control means specially adapted for particular types of vehicles for rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/172—Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
    • 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
    • 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
    • G01P15/003—Kinematic accelerometers, i.e. measuring acceleration in relation to an external reference frame, e.g. Ferratis accelerometers
    • G01P15/005—Kinematic accelerometers, i.e. measuring acceleration in relation to an external reference frame, e.g. Ferratis accelerometers measuring translational acceleration
    • 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
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

1306699 Controlling differential locks ROBERT BOSCH GmbH 1 Oct 1970 [2 Oct 1969 (2)] 46654/70 Heading B7H [Also in Divisions F2, G1 and H2] A generator for use in a system for measuring acceleration of a vehicle wheel comprises a discshaped rotor 27 located adjacent three coils 32, 36, 38 wound on the parallel arms 31, 35, 37 of an E-shaped magnetic core 28. The rotor shaft 26 is coupled to the vehicle wheel and the magnetic circuit is completed by a stationary yoke 29 mounted opposite the arms of the core on the other side of the rotor. As shown in Fig. 2 the coil 32 is connected via a constant current device 33 to a D.C. source 34, so that a constant magnetic field is produced in the core. Eddy currents produced in the disc 27 by rotation thereof produce a further magnetic field which is superimposed on the first one. Changes in the superimposed field caused by acceleration or deceleration of the disc produce voltages in the coils 36, 38 which are oppositely wound and connected in series so that the voltages are added together. The output is amplified at 39 and the resulting signal may be passed to the control circuit of a vehicle braking system. Fig. 3 shows a modification in which the centre coil 32 is energized from an A.C. signal generator 136 through a transformer 134. The A.C. field produced in the core 28 induces voltages in the coils 45, 46 which are oppositely wound so that no net voltage results. The superimposed field produced by rotation of the disc generates voltages in coils 45, 46 which are added together and passed through a rectifier bridge 143. The resulting pulsating D.C. signal is filtered at 154, 155 and differentiated at 156, 157 to produce an output at 158 proportional to acceleration of the disc 27. Another application referred to is detecting wheel slip in rail or road vehicles. In the latter case the output signal may actuate locking mechanisn for a differential gear when one wheel slips. Alternatively the output may be connected to an indicator for measuring the efficiency of vehicle brakes.
GB4665470A 1969-10-02 1970-10-01 Electric generators Expired GB1306699A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19691949708 DE1949708A1 (en) 1969-10-02 1969-10-02 Device for detecting the deceleration of vehicle wheels
DE19691949709 DE1949709A1 (en) 1969-10-02 1969-10-02 Device for detecting the deceleration of vehicle wheels

Publications (1)

Publication Number Publication Date
GB1306699A true GB1306699A (en) 1973-02-14

Family

ID=25757966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4665470A Expired GB1306699A (en) 1969-10-02 1970-10-01 Electric generators

Country Status (4)

Country Link
CH (2) CH516424A (en)
DE (2) DE1949708A1 (en)
FR (2) FR2031058A5 (en)
GB (1) GB1306699A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259637A (en) 1977-07-22 1981-03-31 Ransome Hoffmann Pollard Limited Mechanical assemblies employing sensing means for sensing motion or position
JP2014530138A (en) * 2011-09-09 2014-11-17 クノル−ブレムゼ ジステーメ フューア シーネンファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツングＫｎｏｒｒ−Ｂｒｅｍｓｅ Ｓｙｓｔｅｍｅ ｆｕｅｒ Ｓｃｈｉｅｎｅｎｆａｈｒｚｅｕｇｅ ＧｍｂＨ Improved braking for rail vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259637A (en) 1977-07-22 1981-03-31 Ransome Hoffmann Pollard Limited Mechanical assemblies employing sensing means for sensing motion or position
JP2014530138A (en) * 2011-09-09 2014-11-17 クノル−ブレムゼ ジステーメ フューア シーネンファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツングＫｎｏｒｒ−Ｂｒｅｍｓｅ Ｓｙｓｔｅｍｅ ｆｕｅｒ Ｓｃｈｉｅｎｅｎｆａｈｒｚｅｕｇｅ ＧｍｂＨ Improved braking for rail vehicles

Also Published As

Publication number Publication date
DE1949709A1 (en) 1971-04-08
FR2031058A5 (en) 1970-11-13
FR2031057A5 (en) 1970-11-13
CH516424A (en) 1971-12-15
CH518204A (en) 1972-01-31
DE1949708A1 (en) 1971-04-08

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees