Measuring and testing – Simulating operating condition – Marine
Patent
1980-09-11
1982-11-02
Myracle, Jerry W.
Measuring and testing
Simulating operating condition
Marine
G01M 1302
Patent
active
043567240
ABSTRACT:
An apparatus and method is disclosed for testing automatic vehicular transmissions. The transmission tester of the invention includes input adjustment elements and output adjustment elements which permit various makes and models of transmissions to be installed in the tester for testing. The torque converter of the transmission under test is operatively connected to a drive shaft of the transmission tester. The output of the transmission under test is operatively connected to a load device which provides a loading torque to the output shaft. During the test procedure, the torque converter is rotated at varying speeds while a loading torque is imparted to the output shaft. A vacuum is supplied to the vacuum modulator control of the transmission under test, and the hydraulic pressure of the transmission under test is monitored. A microcomputer controls and monitors the test procedure such that the transmission under test is subjected to a test procedure designed to determine whether the test transmission upshifted and downshifted within prescribed limits set by the manufacturer thereof.
REFERENCES:
patent: 2918822 (1959-12-01), Mann, Jr.
patent: 3016740 (1962-01-01), Raidl
patent: 3060730 (1962-10-01), Lucia
Ayoub Stephen J.
MacPherson Douglas
Rizzo Thomas
Ayoub Stephen J.
Myracle Jerry W.
Stein Stefan
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