CH639520GA3 - - Google Patents

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Publication number
CH639520GA3
CH639520GA3 CH46482A CH46482A CH639520GA3 CH 639520G A3 CH639520G A3 CH 639520GA3 CH 46482 A CH46482 A CH 46482A CH 46482 A CH46482 A CH 46482A CH 639520G A3 CH639520G A3 CH 639520GA3
Authority
CH
Switzerland
Prior art keywords
pressure
timer
brake
actual
measuring
Prior art date
Application number
CH46482A
Other languages
German (de)
Other versions
CH639520B (en
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
Publication of CH639520B publication Critical patent/CH639520B/en
Application filed filed Critical
Priority to CH46482A priority Critical patent/CH639520B/en
Priority to DE19833302236 priority patent/DE3302236A1/en
Publication of CH639520GA3 publication Critical patent/CH639520GA3/de

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Classifications

    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Measuring Fluid Pressure (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

A test apparatus for detecting the time response of pressure changes, preferably in multi-circuit vehicle brake systems, comprises, for each brake circuit to be tested, a measuring element (4, 5; 4', 5'), each of which is connected electrically to a common timer (1) in such a way that a separate time display (t1, t2 = 11, 11') for each brake circuit and at least one common time-difference display (tDiff=11D) for all the time displays (t1, t2 = 11, 11') are arranged in the timer (1). Each measuring element (4, 5; 4', 5') is formed by a pressure-measuring device (4, 4') with a signal transmitter (5, 5') connected in series, each pressure-measuring device (4, 4') having an amplifier (41, 41'), an analog-to-digital convertor (42, 42') and an actual pressure display (Pactual, P'actual = 43, 43'), and each signal transmitter (5, 5') having a comparator (51, 51') and a desired pressure value input (Pdesired, P'desired = 52, 52'). Each comparator (51, 51') is electrically connected on the input side to the corresponding convertor (42, 42') and to the actual pressure display (Pactual, P'actual = 43, 43') and, on the output side, to the timer (1). The measuring elements (4, 5; 4', 5') of the test apparatus are connected to the test connections (73, 73') of the individual brake circuits via measuring lines (3, 3') provided with pressure sensors (2, 2'). Each brake circuit is furthermore connected to the timer (1) by start contact lines (8, 8') by means of the brake-pedal actuating device (71). <IMAGE>
CH46482A 1982-01-26 1982-01-26 TEST DEVICE FOR DETERMINING THE RESPONSE TIME IN COMPRESSED AIR SYSTEMS. CH639520B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH46482A CH639520B (en) 1982-01-26 1982-01-26 TEST DEVICE FOR DETERMINING THE RESPONSE TIME IN COMPRESSED AIR SYSTEMS.
DE19833302236 DE3302236A1 (en) 1982-01-26 1983-01-24 Test apparatus for detecting the response time in compressed-air systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH46482A CH639520B (en) 1982-01-26 1982-01-26 TEST DEVICE FOR DETERMINING THE RESPONSE TIME IN COMPRESSED AIR SYSTEMS.

Publications (2)

Publication Number Publication Date
CH639520B CH639520B (en)
CH639520GA3 true CH639520GA3 (en) 1983-11-30

Family

ID=4187612

Family Applications (1)

Application Number Title Priority Date Filing Date
CH46482A CH639520B (en) 1982-01-26 1982-01-26 TEST DEVICE FOR DETERMINING THE RESPONSE TIME IN COMPRESSED AIR SYSTEMS.

Country Status (2)

Country Link
CH (1) CH639520B (en)
DE (1) DE3302236A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431130C2 (en) * 1984-08-24 1996-09-26 Werner Dipl Ing Wallrafen Device for displaying barometric changes in air pressure
DE4200302C2 (en) * 1992-01-09 1995-08-10 Telefunken Microelectron Method for determining the coupling state of a truck with an electro-pneumatic brake system
SE515781C2 (en) * 2000-08-16 2001-10-08 Scania Cv Ab Method and apparatus for pressure measurement in a compressed air system for a heavy vehicle
DE10138777A1 (en) * 2001-08-07 2003-02-20 Kunze Silvia Leak detection method for use with the pressure lines of a hydraulic or pneumatic machine, whereby pressure is measured over time and compared with stored reference pressure values to determine if a threshold is exceeded
CN103162967A (en) * 2011-12-14 2013-06-19 北汽福田汽车股份有限公司 Method of conducting brake response performance standard reaching test in vehicle trail-produce phase
DE102013019240A1 (en) 2013-11-15 2015-06-03 Wabco Gmbh Method and system for detecting operating conditions of a vehicle and vehicle with such a system
CN105910833B (en) * 2016-06-30 2018-03-06 吉林大学 A kind of air-pressure brake procedural test system and error calibration method

Also Published As

Publication number Publication date
DE3302236A1 (en) 1983-08-04
CH639520B (en)

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