GB1460465A - Roller test stnads for motor vehicles - Google Patents

Roller test stnads for motor vehicles

Info

Publication number
GB1460465A
GB1460465A GB520274A GB520274A GB1460465A GB 1460465 A GB1460465 A GB 1460465A GB 520274 A GB520274 A GB 520274A GB 520274 A GB520274 A GB 520274A GB 1460465 A GB1460465 A GB 1460465A
Authority
GB
United Kingdom
Prior art keywords
roller
machine
lever
speed
value
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
GB520274A
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 GB1460465A publication Critical patent/GB1460465A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/0072—Wheeled or endless-tracked vehicles the wheels of the vehicle co-operating with rotatable rolls

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Electric Motors In General (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

1460465 Roller test stand ROBERT BOSCH GmbH 5 Feb 1974 [6 Feb 1973] 5202/74 Heading G1N A roller test stand for motor vehicles comprises; an electrical machine 4 e.g. an eddy current brake, for driving or braking at least one roller 3 of the stand; a control circuit for controlling the roller speed by way of the machine, the circuit having a potentiometer 9 and lever 10 for determining the desired value for the speed and a correction element in the form of a potentiometer 17 of which the tapping 16 is adjusted by lever 5 as a function of the reaction torque arising during operation of the machine. The correction is necessary because the controller 8 has proportional-plus-differential action so a permanent control deviation will occur. To correct this a lower desired speed value has to be simulated by the correction element. Thus if an undesired increase in roller speed occurs due to increase in brake horsepower from the vehicle wheel 1 the tapping 16 is adjusted by lever 5 due to torque reaction of the machine. As a result a corrective voltage of inverse polarity to that from 9, 10 is supplied to the inverting input of the amplifier 19. So a lower desired speed value is simulated and the actual speed is controlled back to the true desired value. The torque reaction produced when machine 4 brakes the roller acts on a pressure cell 6 via the lever 5 which cell is connected to an indicator 7.
GB520274A 1973-02-06 1974-02-05 Roller test stnads for motor vehicles Expired GB1460465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732305661 DE2305661C3 (en) 1973-02-06 1973-02-06 Roller dynamometer for determining the performance of motor vehicles

Publications (1)

Publication Number Publication Date
GB1460465A true GB1460465A (en) 1977-01-06

Family

ID=5871043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB520274A Expired GB1460465A (en) 1973-02-06 1974-02-05 Roller test stnads for motor vehicles

Country Status (5)

Country Link
JP (1) JPS49111301A (en)
DE (1) DE2305661C3 (en)
FR (1) FR2216574B1 (en)
GB (1) GB1460465A (en)
IT (1) IT1006278B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1455173A2 (en) * 2003-03-03 2004-09-08 Siemens Aktiengesellschaft Roller test bench and procedure for operating such roller test bench

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603508A1 (en) * 1986-02-05 1987-08-06 Haldenwang Gmbh & Co Kg Method and device for testing brakes on brake test stands for motor vehicles
DE3920277C2 (en) * 1989-06-21 1995-06-29 Licentia Gmbh Method and device for examining vehicles on test benches
DE102017104327B3 (en) * 2017-03-02 2017-11-23 Cartesy Gmbh Device and method for testing and / or calibrating a test bench

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2785367A (en) * 1954-04-05 1957-03-12 Westinghouse Electric Corp Dynamometer control
DE1154292B (en) * 1960-09-23 1963-09-12 Siemens Ag Control device for pendulum machines
FR1552255A (en) * 1967-11-24 1969-01-03
US3832894A (en) * 1969-09-10 1974-09-03 Autoscan Inc Chassis dynamometer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1455173A2 (en) * 2003-03-03 2004-09-08 Siemens Aktiengesellschaft Roller test bench and procedure for operating such roller test bench
EP1455173A3 (en) * 2003-03-03 2006-02-08 Siemens Aktiengesellschaft Roller test bench and procedure for operating such roller test bench
US7203602B2 (en) 2003-03-03 2007-04-10 Siemens Aktiengesellschaft Method for operating a roller test bench and roller test bench
CN100489480C (en) * 2003-03-03 2009-05-20 西门子公司 Method for operating rolling experiment table and rolling experiment table

Also Published As

Publication number Publication date
FR2216574A1 (en) 1974-08-30
DE2305661A1 (en) 1974-08-15
FR2216574B1 (en) 1976-10-08
DE2305661C3 (en) 1984-12-20
JPS49111301A (en) 1974-10-23
DE2305661B2 (en) 1980-08-14
IT1006278B (en) 1976-09-30

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Legal Events

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