Lincoln Aviator: High Voltage Battery Charging System / Description and Operation - High Voltage Battery Charging System - Plug-In Hybrid Electric Vehicle (PHEV) - Overview
Overview
The
high voltage battery charging system is responsible for charging the
high voltage battery while the vehicle is not operating. It consists of
an Electric Vehicle Supply Equipment (EVSE), SOBDM and Charge Status Indicator (CSI).
The EVSE is an external AC
charger that connects to an external voltage source and the vehicle
charge port when the vehicle is not operating to charge the high voltage
battery. The 110V (AC Level 1) charger and cord set plugs into a
standard 110V AC outlet and
comes with the vehicle when purchased. The 110V charger is rated up to
12 amps or up to 16 amps depending on the household receptacle being
used. It is recommended to use a dedicated 110V electrical outlet to
ensure adequate current supply for charging. A 220V ( AC Level 2) charging station can also be utilized which is rated up to 80 amps.
The SOBDM,
also known as the Battery Charger Control Module (BCCM), is a liquid
cooled component that charges the high voltage battery when the vehicle
is not operating and plugged into a (110V or 220V) EVSE. The SOBDM is known as the on-board charger. Its primary function is to coordinate charging operations and convert AC to DC. The SOBDM incorporates an integrated module that communicates with other modules over the HS-CAN.
When
the EVSE is plugged into the vehicle charging port the CSI (Charge
Status Indicator) indicates the current Customer State-of-Charge (CSoC)
and charging operations of the high voltage battery. The CSI is a light
ring surrounding the charge port inlet that displays charging, charging
faults and charging status using five LED light segments. The CSI is connected to the SOBDM and controlled using a LIN communication circuit.
System Diagram
Item
Description
1
SOBDMC/ISC (Inverter System Controller)
2
APIM
3
FCIM
4
BCM
5
BMS
6
DCDC
7
PCM
8
GWM
9
BECM
10
SOBDM/BCCM (Battery Charger Control Module)
11
EVSE (Electric Vehicle Supply Equipment)
12
High Voltage Battery
13
High Voltage Battery Junction Box
14
CSI (Charge Status Indicator)
System Operation
Network Message Chart — SOBDM
Broadcast Message
Originating Module
Message Purpose
High voltage battery state of charge (SOC)
BECM
Used to notify other vehicle modules that the high voltage battery has reached 100% SOC
High voltage battery charge status (not
ready, charge wait, ready, charging, charge complete, fault)
BECM
Used to transition the charger between charging and ready states
Vehicle operating mode
Inverter System Controller (ISC)
Vehicle must be in non-torque producing mode prior to charging
Low voltage support
PCM
Used to activate the low voltage output and support the low voltage system
Gear lever position
PCM
Used to determine transaxle gear state
Ambient air temperature
PCM
Ambient air temperature used for cooling strategy
Maximum current request
BECM
Used to limit and set target setpoint of charger
Maximum voltage request
BECM
Used to limit and set target setpoint of charger
Charge contactor open/close
BECM
High voltage battery charge contactor command
12V battery charge setpoint command
PCM
This message is used to set the 12V battery charging voltage...
Other information:
System Operation
System Diagram
E338887
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1
Parking Brake
Control Switch
2
LH Parking Brake
Actuator Motor
3
RH Parking Brake
Actuator Motor
4
PCM
5
GSM
6
RCM
7
BCM
8
GWM
9
IPC
10
ABS
HS-CAN 2
HS-CAN 1
FD-CAN
HS-CAN 3
Item
Description
1
Parking Brake Control Switch
2
LH Parking Brake Actuator Motor
3
RH Parking Brake Actuator Motor
4
PCM
5
GSM
6
RCM
7
BCM
8
GWM
9
IPC
10
ABS
Network Message Chart
ABS Module Electronic Parking Brake Network Input Messages
Broadcast Message
Originating Module
Message Purpose
Accelerator pedal position
PCM
This message is sent to the GWM and then to the ABS module...
WARNING: Do not place your arms
on the airbag cover or through the steering
wheel. Failure to follow this instruction
could result in personal injury.
WARNING: Keep the areas in front
of the airbags free from obstruction. Do
not affix anything to or over the airbag
covers...