Low Power Consumption Control With BCM

BCM reduces the power consumption with the following operation in the low power consumption mode:

• The reading interval of the each switches changes from 10 ms interval to 60 ms interval.

Sleep mode activation

• BCM receives the sleep-ready signal (ready) from IPDM E/R, unified meter and A/C amp. and automatic back door control unit via CAN communication.
• BCM transmits the sleep wake up signal (sleep) to each unit when all of the CAN sleep conditions are fulfilled.
• Each unit stops the transmission of CAN communication with the sleep wake up signal. BCM is in CAN communication sleep mode.
• BCM is in the low power consumption mode and perform the low power consumption control when all of the BCM sleep conditions are fulfilled with CAN sleep condition.

Wake-up operation

• BCM changes from the low power consumption mode to the CAN communication sleep mode when the any of the BCM wake-up conditions is fulfilled. Only the control with BCM is activated.
• BCM transmits the sleep wake up signal (wake up) to each unit when any of the CAN wake-up conditions is fulfilled. It changes from the low power consumption mode or the CAN communication sleep mode to the normal mode.
• Each unit starts the transmission of CAN communication with the sleep wake up signal. In addition, the unified meter and A/C amp. transmits the wake up signal to BCM via CAN communication to report the CAN communication start.