ENGINE
Charging
,
GENERAL INFORMATION
The charging system uses generator output to keep
, ,
the battery charged at a constant level under various
electrical loads.
GENERATOR SPECIFICATIONS
Items
Identification No.
Part No.
Rated output
Specifications
998
Voltage
I
Time
OPERATION
.
Rotation of the excited field coil generates AC voltage in
the
This alternating current is then rectified through diodes to
produce DC voltage. Refer to the waveform shown in the
illustration at left.
The average output voltage fluctuates slightly with the genera-
tor load condition.
When the
relay
(ASD
relay) is on and the
control circuit is grounded by the powertrain control
module (PCM), current flows to the field coil, initial
energization of the field coil. The
coil starts
to
generate power after the engine is
started.
The generator output voltage rises as field current
increases and falls as field current decreases.
Accordingly, when the battery positive voltage
reaches target voltage value, the PCM turns the
Generator
field current off. When the battery positive voltage
is below target value*, the PCM turns the field cur-
rent on to maintenance generator voltage at
a
constant level. If the field current is constant, the
generator output voltage will increase along with
increases in engine speed.
The target voltage is programmed in the PCM
according to battery temperature.
TSB Revision
I
Summary of Contents for Eclipse 1997
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