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SIDE AND CURTAIN AIR BAGS
SRS-ECU uses data of the side impact sensor, G-sensor (in SRS-ECU) and rollover sensor (in SRS-ECU) to
calculate collision or rollover severity, during side collision or rollover. SRS-ECU judges necessity of side-airbag
and curtain air bag based on the calculated collision or rollover severity.
HIGH VOLTAGE SHUTDOWN FUNCTION
In response to an impact from the vehicle front, an impact from the vehicle side, an impact from the vehicle rear,
and rollover, if the SRS-ECU judges that the high voltage shutdown is necessary according to the output from the
G sensor in the SRS-ECU (X-axis, Y-axis, Z-axis), front and rear impact sensor, and the rollover sensor in the
SRS-ECU, the SRS-ECU sends the high voltage shutdown signal to the PHEV-ECU.
Shock
above a
certain
level
Side impact against
another vehicle
When the vehicle detects
rollover of the vehicle
Rear side impact sensor (LH, RH)
Front side impact sensor (LH, RH)
High voltage shutdown judgment
(frontal collision, side collision,
rear-end collision, rollover)
Analog G-sensor
(longitudinal direction,
lateral direction)
PHEV-ECU (High voltage shutdown communication)