Battery module output control

The battery module output control maintains the battery module SOC and temperature. It also prolongs battery life by setting the correct limits for battery output to the IMA motor and battery input from charging. Without this control, the battery module would quickly deteriorate.

Fig 1: Battery Module Output Control System Communication Diagram

Courtesy of AMERICAN HONDA MOTOR CO., INC.

HDS PARAMETER WITH NORMAL CONTROL AREA

HDS Parameter	Normal Control Area
SOC	25 - 75 %
SOC POWER SAVE (PSSOC)	ON/OFF

Fig 2: Temperature Output Control Limit

Courtesy of AMERICAN HONDA MOTOR CO., INC.

HDS PARAMETER WITH NORMAL CONTROL AREA

HDS Parameter	Normal Control Area
BATTERY MODULE TEMPERATURE SENSOR 1 (TBATT1)	Depend on outside air temperature
BATTERY MODULE TEMPERATURE SENSOR 2 (TBATT2)	Depend on outside air temperature
BATTERY MODULE TEMPERATURE SENSOR 3 (TBATT3)	Depend on outside air temperature
BATTERY MODULE TEMPERATURE POWER SAVE (PSTBATT)	ON/OFF

Consecutive output control

To prevent battery module overheating and deterioration, the battery module output control manages the consecutive outputs of battery assist and sets an allowable amount.

Fig 3: Battery Performance Limit Graph

Courtesy of AMERICAN HONDA MOTOR CO., INC.