Driving Support System Description (Integrated Driver Support System) (2025)
Integrated Driver Support System
This vehicle is equipped with the integrated driver support system, which analyzes information from the monocular camera (multipurpose camera) and millimeter wave radar in a comprehensive manner to recognize an object.
The difference between the integrated driver support system (camera and five radars) and the integrated driver support system is shown below.
| System Name | Confirmation Method | Installed Sensors | Control Function |
|---|---|---|---|
| Integrated Driver Support System (Camera and Five Radars) | If the active lane change assist warning indicator come on when the system checks are being performed or if your vehicle is equipped with the Type S emblem, the vehicle is equipped with integrated driver support system (camera and five radars). |
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| Integrated Driver Support System |
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Roles of Each Function
The integrated driver support system has four main categories of functions: safety support, driving support, lighting control, and notification functions. When the integrated driver support system detects a hazard, an alarm and/or warning notification is triggered. The system provides safety support functions that perform hazard evasion assistance if the driver does not (or cannot) respond to the warning notification or alarm. The system also provides driving support, lighting control, and notification functions controlling the vehicle behavior according to the road conditions to assist the driver.
| Safety Support Functions | Driving Support Functions | Lighting Control Function | Notification Function |
|---|---|---|---|
| CMBS, Road Departure Mitigation | ACC with LSF, LKAS with Traffic Jam Assist | Auto High-Beam | Traffic Sign Recognition System* |
| The driver can turn on and off these functions using the gauge control module | The function is selectable by the driver | The function is ON by turning the combination light switch to the AUTO position | The function is selectable by the driver |
*: USA and Canada models
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 cancelled. When the road departure mitigation system is activated, its operation has higher priority than LKAS. Between CMBS and road departure mitigation system, 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 (leading and opposing vehicles), pedestrians, and bicycles 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.
Vehicle/Object Detection Process
The multipurpose camera unit determines if there is any leading vehicle 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 leading vehicles and pedestrians, the system uses the recognition result received from both the millimeter wave radar and the multipurpose camera as follows:
- The lane lines are recognized by managing the width, length, continuity of the line from the image captured by the multipurpose camera.
- The road sign is recognized by comparing the image captured by the multipurpose camera with the sign information registered in the system.
Pedestrian Image Processing
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 a different object.
Function Failure Indication
| System Temporary Stop | The system detects that the electric wave of the millimeter wave radar is blocked (such as dirt attached on the radar surface/radar cover). | ACC with LSF, CMBS, and road departure mitigation stops functioning, safety support indicator (amber) comes on, stores DTC, and a fault indication is triggered on the MID. After the dirt has been removed, the system recovers and the indicators turn off. |
Some driver assist systems cannot operate: Clean area shown |
| The system detects the multipurpose camera image is covered (foggy/dirty windshield). | ACC, LKAS, CMBS, Road Departure Mitigation, and Traffic Sign Recognition stops functioning, and stores the DTC, and a fault indication is triggered on the MID. After the obstruction has been removed or weather conditions are restored, the function is enabled and the warning indicator and messages are turned off. |
Some driver assist systems unavailable: Clean windshield or poor visibility. |
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| The temperature in the multipurpose camera unit reaches the upper limit of the operating temperature because of a temperature increase in the vehicle interior (temperature rise caused by sunlight). | Temporary stop of all functions, safety support indicator (amber) comes on, and a fault indication is triggered on the MID. When the temperature on the inside drops, the system recovers and the indicators turn off. |
Some driver assist systems cannot operate: Camera temperature too high |
| System Failure | Components failure:
Communication failure:
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Stop of all functions, system indicator and brake system indicator (amber) come on, and fault indication appears on the MID. | Function | System Indicator (on the MID) |
| ACC |
Adaptive cruise control system problem. See your dealer. |
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| CMBS |
Collision mitigation braking system problem. See your dealer. |
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| LKAS |
Lane keeping assist system problem. See your dealer. |
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| Road Departure Mitigation System |
Road departure mitigation system problem. See your dealer. |
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| Auto High-Beam |
Auto high-beam problem. Manual controls available. See your dealer. |
Dynamic Aiming
The vehicle is equipped with dynamic aiming, which can complete the multipurpose camera or the millimeter wave radar aiming process just by driving the vehicle around, and without the need for special tools. Dynamic aiming of the multipurpose camera calculates and adjusts the aiming correction value based on the flow of the background of the multipurpose camera image information while driving the vehicle. Dynamic aiming of the millimeter wave radar calculates and adjusts the aiming correction value based on the flow of the target captured by the millimeter wave radar while driving the vehicle. When dynamic aiming is performed, make sure to drive safely at a constant speed with reference to the recommended environment. When dynamic aiming is performed, static aiming is not required.
Camera Heater
The camera heater is located on the windshield near the multipurpose camera. The camera heater heats the area around the multipurpose camera to warm the windshield. This helps prevent fogging of the windshield, facilitates the removal of icing, and provides a clear view for the multipurpose camera.