150
Vehicle Dynamics and Driver Assist Systems
May 2017
HBA Variations
Currently, there are two types of HBA input methods. However, both systems feature the same
basic functionality:
• EyeSight
®
stereo cameras for light source detection
• Monocular camera for light source detection
2017MY Forester uses the EyeSight
®
(Ver. 3) stereo camera as the primary input for HBA
judgements. On these vehicles, the EyeSight
®
system uses the vehicle’s CAN network to
transmit and receive any and all necessary information to allow for HBA function.
EyeSight® Stereo Cameras
VDC
TCM
HI-BEAM ON/OFF
HEADLIGHT
DIMMER HI SW
LIGHT AUTO SW
COMBINATION SW
ILLUMINATION INTENSITY
JUDGMENT
LIGHT CONTROL SENSOR
HBA OPERATION JUDGMENT
BODY INTEGRATED UNIT
YAW RATE SENSOR/
VEHICLE SPEED
SENSOR
GEAR POSITION
INFORMATION
MAIN COMMUNICATION BUS (CAN)
INDICATOR
VEHICLE MODEL INFORMATION
SPECIFICATION INFORMATION
COMBINATION METER
VEHICLE SPEED CONDITION JUDGMENT
FORWARD/BACKWARD JUDGMENT
FRONT RECOGNITION
STEREO CAMERA
HBA System Architecture - EyeSight®
4-85
4-86