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BCS-18 < SYSTEM DESCRIPTION > SYSTEM POWER CONSUMPTION CONTROL SYSTEM : System Description INFOID:0000000010377992 SYSTEM DIAGRAM OUTLINE • BCM incorporates a power saving control function that reduces the power consumption according to the vehicle status. • BCM switches the status (control mode) by itself with the power saving control function. It performs the sleep request to each unit (IPDM E/R, combination meter and AV control unit) that operates with the ignition switch Normal mode (wake-up) - CAN communication is normally performed with other units CAN communication sleep mode (CAN sleep) - CAN transmission is stopped Low power consumption mode (BCM sleep) - Low power consumption control is active LOW POWER CONSUMPTION CONTROL WITH BCM BCM reduces the power consumption with the following operation in the low power consumption mode. Sleep mode activation • BCM receives the sleep-ready signal (ready) from IPDM E/R, combination meter and AV control unit via CAN communication. • BCM transmits the sleep wake up signal (sleep) to each unit when all of the CAN sleep conditions are ful- filled. • Each unit stops the transmission of CAN communication with the sleep wake up signal. BCM is in CAN com- munication 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. JMMIA1759GB |