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Outline

Structural View

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Functions

Driving characteristics calculation function

• When the vehicle is driven at approx. 65 km/h {40 mph} to 140km/h {87 mph} for approx. 20 min, the connectivity master unit (CMU) sets the driver’s driving characteristics.

• The connectivity master unit (CMU) resets the determined driving characteristics data when any of the following conditions is met.

― Vehicle is stopped for 15 min or more

― Vehicle is driven at less than approx. 65 km/h {40 mph} for 30 min or more

― Ignition is switched off

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Driving characteristics monitoring function

• When the following conditions are all met, the connectivity master unit (CMU) updates the driving characteristics continuously.

― Vehicle speed calculated by the connectivity master unit (CMU), based on wheel speed signals received via CAN communication from DSC HU/CM, is approx. 65 km/h {40 mph} or more and less than approx. 140 km/h {87 mph}.

― More than 60 minutes have passed since the driver began driving vehicle

― FSC does not recognizes a sharp curve

― FSC recognizes white lines

― The vehicle is not changing lanes

• The connectivity master unit (CMU) calculates the driving time.

Warning function

• If the driver’s attention decreases, the connectivity master unit (CMU) sends the warning request signal to the instrument cluster and the body control module (BCM).

• When the instrument cluster receives the warning request signal from the connectivity master unit (CMU), it displays the alert with “Time for a Break“ message encouraging rest on the multi-information display and activates the buzzer.

― If the system does not operate normally, the connectivity master unit (CMU) sends the failure signal to the instrument cluster, and it displays the alert on the multi-information display.

― After the system has displayed the first message encouraging rest, it does not display the next one until 60 minutes have passed.

• When the body control module (BCM) receives the warning request signal from the connectivity master unit (CMU), it outputs the warning signal to the front speaker.

• The warning is not activated for approx. 60 min after being activated once.

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Personalization feature

• The driver attention alert system can be set to ON (enabled)/OFF (disabled) (initial setting is ON (enabled)). For details on the personalization features, refer to the [PERSONALIZATION FEATURES]

System Wiring Diagram

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Operation

1.The connectivity master unit (CMU) calculates the driving characteristics (1) based on the lane information from the forward sensing camera (FSC), the steering angle signal from EPS, the yaw rate signal and the wheel speed signal from the DSC HU/CM.

2.The connectivity master unit (CMU) calculates the driving time (2).

3.The connectivity master unit (CMU) determines the driver’s attention decreases (3).

4.The connectivity master unit (CMU) sends the warning request signal (4) to the instrument cluster and the body control module (BCM).

5.When the instrument cluster receives the warning request signal (4) from the connectivity master unit (CMU) via the body control module (BCM), it displays the warning display on the multi-information display (5).

6.When the body control module (BCM) receives the warning request signal (4) from the connectivity master unit (CMU) via the body control module (BCM), it outputs the warning sound signal to the Notification and Warning Speaker (Front) (4) and the Notification and Warning Speaker (Front) sounds a warning.

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