Driving Support System Description - Overview (2017 2018 2019 2020)

Integrated Driver Support System 

This vehicle is equipped with the Integrated Driver Support System, which integrates and analyzes the information transmitted from the millimeter wave radar and the multipurpose camera to recognize objects.

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*: Depending on the vehicle trim level, some vehicles may use a millimeter wave radar and a multipurpose camera while other trims may only use a multipurpose camera.

Roles of Each Function 

The integrated Driver Support System has three main categories of functions: Safety, Comfort and Lighting control functions. When the Integrated Driver Support System detects a hazard, an alarm and/or warning notification is triggered. The system provides safety functions that perform a hazard evasion assistance if the driver does not (or cannot) respond to the warning notification or alarm. The system also provides comfort and lighting control functions controlling the vehicle behavior according to the road conditions to assist the driver.

Safety Functions	Comfort Functions	Lighting Control Function
CMBS, Road Departure Mitigation (RDM)	ACC with Low Speed Follow, LKAS	Auto High-Beam
The function is basically ON all the time (can be turned off by switch operation)	The function is selectable by the users	The function is ON by turning the combination light switch to the AUTO position

Operational priority of each function 

Operation priority of each function is set among systems. The CMBS gets activated when a risk of collision becomes greater while the ACC control is in operation. Once the CMBS becomes active, the ACC will be canceled. When the RDM System is activated, its operation has higher priority than LKAS. Between CMBS and RDM, the brake control of the CMBS has higher priority.

Operation of the Millimeter Wave Radar 

The millimeter wave radar uses millimeter wave bands to detect vehicles and pedestrians (vehicle ahead, oncoming vehicles and pedestrian) in front of the vehicle. The radar also calculates the relative speed of the objects and the distance between the objects and the vehicle by transmitting and receiving the millimeter waves.

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Operation Conditions 

Item		Vehicle ahead	Oncoming vehicle*	Pedestrian*
Accuracy of horizontal field	Distance	0.5 - 120 m (2 - 394 ft)	1 - 120 m (3 - 394 ft)	1 - 40 m (3 - 131 ft)

*: Except Mexico model

Vehicle/Object Detection Process 

The multipurpose camera unit determines if there is a vehicle ahead and/or detected objects that are moving based on the outlines of the objects, relative position and speed of the objects. In order to distinguish between a leading vehicle and pedestrians, the system uses the recognition result received from both the millimeter wave radar and the multipurpose camera as follows.

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Pedestrian Image Processing 

The multipurpose camera is able to detect pedestrians. When the system detects an object that could be a pedestrian, the system compares the object's characteristics against programmed characteristics for the system to determine if the object is likely a pedestrian or other object.

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Function Failure Indication 

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Courtesy of HONDA, U.S.A., INC.