G - Physics – 01 – R
Patent
G - Physics
01
R
320/12
G01R 31/00 (2006.01) H02J 7/14 (2006.01)
Patent
CA 1150349
Abstract An in situ self-diagnostic automotive alternator battery charging system is disclosed. Included are: a battery; voltage regulator sensing battery voltage and generating an excitation signal; and an alternator driven by a vehicle engine provide a rectified electrical signal to charge the battery in response to the excitation signal. Electronic circuit status detectors, variously coupled to the battery, voltage regulator and alternator, maintain a first logic state when a corresponding signal characteristic is within a predetermined range and a second logic state when the corresponding characteristic is outside the predetermined range. Combinatorial logic means respond to a logic state sequence from the detec- tors to identify predetermined sequences of the logic states resulting in the identification of faults in the charging system. The logic means also provides a warning to the operator of detection of a fault and a display of the location of the fault as occurring in one of the major components of the charging system.
375418
Mortonson Robert W.
Sievers Kirk A.
Gowling Lafleur Henderson Llp
Motorola Inc.
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