GB1349713A – Vehicle testing apparatus
– Google Patents
GB1349713A – Vehicle testing apparatus
– Google Patents
Vehicle testing apparatus
Info
Publication number
GB1349713A
GB1349713A
GB1522570A
GB1349713DA
GB1349713A
GB 1349713 A
GB1349713 A
GB 1349713A
GB 1522570 A
GB1522570 A
GB 1522570A
GB 1349713D A
GB1349713D A
GB 1349713DA
GB 1349713 A
GB1349713 A
GB 1349713A
Authority
GB
United Kingdom
Prior art keywords
signal
speed
disc
power
wheel
Prior art date
1970-03-31
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
GB1522570A
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.)
Snap On Equipment Ltd
Original Assignee
Suntester 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.)
1970-03-31
Filing date
1970-03-31
Publication date
1974-04-10
1970-03-31
Application filed by Suntester Ltd
filed
Critical
Suntester Ltd
1974-04-10
Publication of GB1349713A
publication
Critical
patent/GB1349713A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G—PHYSICS
G01—MEASURING; TESTING
G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
G01L3/242—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity by measuring and simultaneously multiplying torque and velocity
Abstract
1349713 Measuring traction power electrically SUNTESTER Ltd 19 April 1971 [31 March 1970] 15225/70 Headings G1A G1N and G1W Motor vehicle testing apparatus comprising the combination of a chassis dynamometer 2, means for generating a signal dependent on the power absorbed by the brake 8 of the dynamometer, means for generating acceleration-power signal dependent on the product of the acceleration of the dyanamometer rollers 4, 6 and the speed of rotation of the rollers and means 42 for summing the braking-power signal and the acceleration-power signal to derive a signal dependent upon the traction power output of a vehicle being tested. The apparatus is applied to measuring tractive power of a vehicle wheel 7 the dynamometer rollers 4, 6 being driven by the wheel, the former coupled to the rotor of the eddy current brake 8 of which the stator is pivotable against springs 12 under braking torque and which stator carries an arm 14 with a forked end 16 in which a perforated disc 18 is mounted for rotation by engagement with perforated disc 20 rotatably driven by roller 6. A lamp and a photo-cell 22 act with disc 18 to provide a pulse train of which the frequency represents the product of rotary speed of the wheel and displacement of the disc 18 from the axis of disc 20 due to braking torque which product is therefore representative of traction power (wheel speed times braking torque). Similary a lamp acts with disc 20 and photo-cell 24 to produce a signal representing wheel speed and a further lamp with disc 21, photo-cell 25 and converter 29 to derive a signal representing speed of roller 4 which signal is fed to a high gain amplifier 32 which, with switches S1, S2, S3 at position 2 or 3 compares the speed signal with a signal from store 36 and controls by controller 10 the brake to equalise the input signals to the amplifier. The stored signal is a ramp signal from circuit 38 or 40 and produces a constant acceleration or deceleration respectively. With the switches at position 1 the stored signal is set to a value corresponding to the speed of rotation of the roller 4. It is stated that the power output signal and the speed signal may be applied to Y, X inputs of an X-Y plotter. In an alternative arrangement a tacho-generator is driven by one of the rollers to produce a speed-representative signal across the track of a potentiometer of which the wiper is positioned in accordance with braking torque developed by the dynamometer.
GB1522570A
1970-03-31
1970-03-31
Vehicle testing apparatus
Expired
GB1349713A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB1522570
1970-03-31
Publications (1)
Publication Number
Publication Date
GB1349713A
true
GB1349713A
(en)
1974-04-10
Family
ID=10055271
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1522570A
Expired
GB1349713A
(en)
1970-03-31
1970-03-31
Vehicle testing apparatus
Country Status (5)
Country
Link
US
(1)
US3718036A
(en)
DE
(1)
DE2113362C3
(en)
FR
(1)
FR2087958A5
(en)
GB
(1)
GB1349713A
(en)
SE
(1)
SE371500B
(en)
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4169371A
(en)
1977-08-08
1979-10-02
Walter Ruegg
Method and apparatus for measuring drive system characteristic data in dynamic operation
GB2127549A
(en)
*
1982-09-16
1984-04-11
Wai Sun Leung
Measuring and recording system for steady-state and transient torques
GB2149520A
(en)
*
1983-11-11
1985-06-12
Vickers Plc
Dynamometers
CN103557976A
(en)
*
2013-10-09
2014-02-05
奇瑞汽车股份有限公司
Method for measuring running resistance of automobile
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4450728A
(en)
*
1981-10-06
1984-05-29
Horiba Instruments Incorporated
Vehicle force measurement system
NL1014423C2
(en)
*
2000-02-18
2001-08-22
Sun Electric Systems Bv
Roller pair for a roller test bench.
CN104527322A
(en)
*
2014-12-16
2015-04-22
哈尔滨工业大学
Planet vehicle wheel integrating six-dimension force/force moment testing functions
CZ308989B6
(en)
*
2019-05-15
2021-11-10
Česká zemědělská univerzita v Praze
Method of measuring the braking performance of wheeled vehicles, device and assembly for measuring the braking performance of wheeled vehicles and their use
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2982128A
(en)
*
1957-09-25
1961-05-02
Gen Electric
Dynamometer control system
NL6715400A
(en)
*
1967-11-14
1969-05-19
1970
1970-03-31
GB
GB1522570A
patent/GB1349713A/en
not_active
Expired
1971
1971-03-19
DE
DE2113362A
patent/DE2113362C3/en
not_active
Expired
1971-03-29
SE
SE7104047A
patent/SE371500B/xx
unknown
1971-03-29
US
US00128995A
patent/US3718036A/en
not_active
Expired – Lifetime
1971-03-31
FR
FR7111394A
patent/FR2087958A5/fr
not_active
Expired
Cited By (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4169371A
(en)
1977-08-08
1979-10-02
Walter Ruegg
Method and apparatus for measuring drive system characteristic data in dynamic operation
GB2127549A
(en)
*
1982-09-16
1984-04-11
Wai Sun Leung
Measuring and recording system for steady-state and transient torques
GB2149520A
(en)
*
1983-11-11
1985-06-12
Vickers Plc
Dynamometers
CN103557976A
(en)
*
2013-10-09
2014-02-05
奇瑞汽车股份有限公司
Method for measuring running resistance of automobile
CN103557976B
(en)
*
2013-10-09
2015-12-02
奇瑞汽车股份有限公司
A kind of measuring method of automobile running resistance
Also Published As
Publication number
Publication date
DE2113362B2
(en)
1974-06-27
DE2113362A1
(en)
1971-10-14
SE371500B
(en)
1974-11-18
DE2113362C3
(en)
1975-02-13
FR2087958A5
(en)
1971-12-31
US3718036A
(en)
1973-02-27
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Legal Events
Date
Code
Title
Description
1974-08-21
PS
Patent sealed [section 19, patents act 1949]
1975-11-26
PLNP
Patent lapsed through nonpayment of renewal fees
