Apparatus for providing controlled mechanical braking torque
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United States of America Patent
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Aug 15, 1995
Issued Date -
N/A
app pub date -
Feb 22, 1993
filing date -
Mar 27, 1989
priority date (Note) -
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Abstract
Apparatus and method for electrically generating mechanical braking torque employs direct field drive incorporating an AC alternator plus a current regulator. The stator windings of the alternator are directly coupled to the field winding via a full wave rectifier and the current regulator. The invention simplifies electrical circuitry for generating braking torque, provides wide dynamic range of torque generation, limits voltages and currents to easily manageable levels, and reduces mechanical drive train requirements. The invention produces a constant power mechanical load from essentially 0 to over 1,000 watts from an alternator of the size typically used for automotive applications.
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