Alternator power-supply type electric heating control apparatus

Details Alternator power-supply type electric heating control apparatus Alternator power-supply type electric heating control apparatus

1995-12-29

1997-10-28

Paschall, Mark H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219481, 219508, 322 15, 322 90, 1231425R, H05B 102

Patent

active

056814950

ABSTRACT:
An alternator power-supply type electric heating control apparatus, comprising (1) a switch for switching an output of an alternator including a field coil, a stator coil, and a rectifier to a first state where the output is connected to a battery and vehicle-mounted electrical load side or a second state where the output is connected to an object to be heated which is heated by current conduction; (2) a controller which performs an output control of the alternator by a duty control of a field current that is supplied to the field coil, performs the switching of the switch, detects a failed state, and causes a display unit to display the failed state to warn a driver; and (3) an object to be heated voltage control unit for controlling the duty control of the field current by a rectification wave of one phase of an output voltage of the alternator, rectified by the rectifier, so that a voltage of the object to be heated does not exceed a predetermined value.

REFERENCES:
patent: 5087869 (1992-02-01), Kuriyama et al.
patent: 5321231 (1994-06-01), Schmalzriedt et al.
"Development of an Alternator-Powered Electrically-Heated Catalyst System", by P. Laing, SAE paper 941042 pp. 137-143.

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