Anjolle kirjutas:
Aina segasemaks läheb. Manualist lugesin:
2000_LH_LHS_300M_Concorde_Intrepid kirjutas:
The PCM incorporates a Battery Temperature Sensor
(BTS) on its circuit board.
Et siis aku temp. andur on mootori juhtplokki sisse ehitatud?!
Kõigil võib õigus olla. Minu andmed pärinevad 2004.a. manuaalist. Nagu altpoolt tsitaatidest näha, on seal mainitud isegi kolme temperatuuriandurit, kusjuures kõik kolm võivad olla või puududa (If equipped). Konkreetset väidet, et aku temperatuuri andur on PCM sees, enam ei ole.
Asi on ilmselt selles, et alates 2002.a. hakkas Chrysler oma autodel vahetama vanu PCM-e uute, nn. NGC (Next Generation Controller) tüüpi kontrollerite vastu. 2005.aastaks olid juba Chrysleri kõikidel autodel NGC tüüpi PCM-d. Kahjuks ei tea, millal see vahetus 300m-l toimus. Märkusena veel, et uus PCM täidab ka TCB (Transmission Control Block) funktsioone, seega eraldi TCB puudub.
Nii, et kõigepealt peaks uurima väljalaske aastat. Kui on tegemist enne 2002 aasta masinaga, siis ongi temperatuuri andur PCM-i sees ja välja tuleb vahetada terve plokk, kui just head elektroonikut käepärast ei ole. Hilisemate autode puhul on asi segasem, aga kuna välistemperatuuri näit ka puudub, siis suure tõenäosusega on vigane just see andur.
SERVICE MANUAL 2004 300M, CONCORDE AND INTREPID kirjutas:
DESCRIPTION - CHARGING SYSTEM
The charging system consists of:
² Generator
² Decoupler Pulley (If equipped)
² Electronic Voltage Regulator (EVR) circuitry
within the Powertrain Control Module (PCM)
² Ignition switch (refer to the Ignition System section
for information)
² Battery (refer to the Battery section for information)
² Ambient Air Temperature (If equipped)
² Inlet Air Temperature (calculated battery temperature)(
If equipped)
² Voltmeter (refer to the Instrument Cluster section
for information if equipped)
² Wiring harness and connections (refer to the
Wiring section for information)
² Accessory drive belt (refer to the Cooling section
for more information)
² Battery Temperature sensor (if equipped)
The PCM uses the inlet air temperature sensor or
ambient temperature sensor to control the charge
system voltage. This temperature, along with data
from monitored line voltage, is used by the PCM to
vary the battery charging rate. The system voltage is
higher at cold temperatures and is gradually reduced
as the calculated battery temperature increases.
The ambient temperature sensor is used to control
the battery voltage based upon ambient temperature
(approximation of battery temperature). The PCM maintains
the optimal output of the generator by monitoring
battery voltage and controlling it to a range of 13.5 -
14.7 volts based on battery temperature.
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The amount of DC current produced by the generator
is controlled by the EVR (field control) circuitry
contained within the PCM. This circuitry is connected
in series with the second rotor field terminal
and ground.
An Ambient air temperature sensor is mounted on
the bumper used to calculate the temperature near
the battery. This temperature data, along with data
from monitored line voltage (battery voltage sense
circuit), is used by the PCM to vary the battery
charging rate. This is done by cycling the feed path
to control the strength of the rotor magnetic field.
The PCM then compensates and regulates generator
current output accordingly to maintain system voltage
at the targeted system voltage based on battery
temperature.
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