PHEV Battery
| ITEM | DESCRIPTION |
|---|---|
| PHEV battery coolant inlet | |
| 2 | PHEV battery |
| 3 | Manual Service Disconnect (MSD) connection |
| 4 | High voltage connection to High Voltage Junction Box (HVJB) |
| 5 | 12V connections |
| 6 | High voltage connection to the High Power Inverter Converter (EPIC) |
| 7 | Coolant outlet |
The PHEV battery contains the Battery Energy Control Module (BECM) that controls the internal temperature when the vehicle is driven or the PHEV battery is charged.
Battery Energy Control Module
The Battery Energy Control Module (BECM) is an integral part of the PHEV battery. The BECM controls the individual battery cell voltages, internal PHEV battery temperatures and the high voltage relays.
The BECM communicates with the high voltage system and other vehicle systems via the High Speed (HS) Controller Area Network (CAN) power mode zero systems bus.
The PHEV battery has a temperature control system to maintain the PHEV battery internal temperature within a specific range. The temperature control system uses a PHEV battery coolant to heat and cool the inside of the PHEV battery. The PHEV battery coolant is circulated through the system by a 12V electric pump controlled by the BECM.
The heat for the PHEV battery temperature control system is provided by external 12V electric heater in the temperature control system. This increases the temperature of the PHEV battery coolant to increase the internal temperature of the PHEV battery, when the internal PHEV battery temperature is below a set temperature.
For additional information, Refer to: BATTERY AND CABLES - HIGH VOLTAGE SYSTEM