Measuring and testing – Brake testing
Patent
1992-12-30
1994-10-25
Noland, Tom
Measuring and testing
Brake testing
73 39, 73168, 417 53, G01L 528
Patent
active
053578007
ABSTRACT:
A production functional test for hydraulic brake control and traction control units which utilizes compressed air as a test medium. Compressed air is applied to an external port of a hydraulic brake or traction control unit which includes valves, accumulators and a positive displacement pump driven by an electric motor connected by internal passageways. The air pressure at another external port is monitored while the various components are exercised according to a test sequence. The monitored pressure must be within predetermined limits at various points of the test to demonstrate that the brake control unit is functioning properly. Air flow rates and pump motor current are also measured at specific points in the test. The test method can identify incorrectly sized and installed components.
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Sessions, Ron, Turbo-Hydramatic 350 Handbook, 1985, HP Books, Los Angeles, p. 64.
Reuter Brian T.
Willi Gary A.
Kelsey-Hayes Company
Noland Tom
Olsen James M.
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