System Description

SYSTEM DIAGRAM

Courtesy of NISSAN NORTH AMERICA, INC.

ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM

Input Signal Item

Transmit unit	Signal name		Description
ABS actuator and electric unit (control unit)	CAN communication	Vehicle speed signal	Receives wheel speeds of front wheels.
Combination meter	CAN communication	System selection signal	Receives a selection state each item selected on the information display.
Steering angle sensor	CAN communication	Steering angle sensor signal	Receives the number of rotation, rotational angle, and rotational direction of the steering wheel.

Output Signal Item

Reception unit	Signal name		Description
Combination meter	CAN communication	Meter display signal	Transmits a signal to display a status on the vehicle information display.

FUNCTION DESCRIPTION

The Driver Attention Alert (DAA) is controlled by the ADAS control unit.
ON/OFF of the DAA is performed through the vehicle information display.
Intelligent Drive Alertness system helps alert the driver when the system detects a lack of attention or driving fatigue.
The system monitors driving style and steering behavior over a period of time, the system uses an audible and visual warning to suggest that the driver take a break.

OPERATION DESCRIPTION

When the system detects that driver fatigue or that driver attention is decreasing, the message "Take a break?" appears in the vehicle information display and a chime sounds when the vehicle is driven at speeds above 60 km/h (37 MPH).
The system continuously monitors driver attention and can provide multiple warnings per trip.
The system resets and starts reassessing driving style and steering behavior when the ignition switch is cycled from on to off and back on.

Operation Condition

NOTE:

DAA system ON/OFF can be set on the information display.
When the ignition switch OFF, the system is rest.
The DAA system may not function properly, depending on the situation. Refer to Handling Precaution .