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Home >> Infiniti Truck >> 2012 >> QX56 RWD V8-5.6L (VK56VD) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Collision Avoidance and Parking Assist Systems >> Description and Operation >> Blind Spot Intervention System >> System Description

System Description




SYSTEM

BLIND SPOT INTERVENTION SYSTEM : System Description


SYSTEM DIAGRAM







ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM

Input Signal Item





Output Signal Item






FUNCTION DESCRIPTION

- The Blind Spot Intervention system can help alert the driver of other vehicles in adjacent lanes when changing lanes. Blind Spot Intervention always operates together with BSW.
- The Blind Spot Intervention system operates above approximately 60 km/h (37 MPH).
- The Blind Spot Intervention system uses side radar installed near the rear bumper to detect other vehicles beside vehicle in an adjacent lane.
- The side radar can detect vehicles on either side of vehicle within the detection zone shown as illustrated.
- This detection zone starts from the outside mirror of vehicle and extends approximately 10 ft (3.0 m) behind the rear bumper, and approximately 10 ft (3.0 m) sideways.
- If the Blind Spot Warning/Blind Spot Intervention indicator is illuminated while vehicle is approaching a lane marker, the Blind Spot Warning/Blind Spot Intervention indicator blinks and an audible warning will sound three times. Then the system applies the brakes on one side of the vehicle for a short period of time to help return the vehicle back to the center of the lane.





- Blind Spot Intervention operates regardless of turn signal usage.
- The brightness of Blind Spot Warning/Blind Spot Intervention indicator lights is adjusted automatically depending on the brightness of the ambient light.
NOTE:
- Blind Spot Intervention is typically activated earlier than LDP when getting closer to the lane marker.
- Warning and brake control will only be activated if the Blind Spot Warning/Blind Spot Intervention indicator is already illuminated when vehicle approaches a lane marker.
- If another vehicle comes into the detection zone after vehicle has crossed a lane marker, no warning or brake control will be activated.

BLIND SPOT INTERVENTION SYSTEM OPERATION DESCRIPTION

- ADAS control unit enables Blind Spot Intervention system.
- Turn ON the dynamic driver assistance switch, and Blind Spot Intervention system setting on the navigation screen. Then Blind Spot Intervention ON indicator comes on.
- Combination meter turns Blind Spot Intervention ON indicator lamp ON/OFF according to the signals from
ADAS control unit via CAN communication.
- Side radar detects a vehicle in the adjacent lane, and transmits the vehicle detection signal to ADAS control unit via ITS communication.
- Side radar receives vehicle speed signal from ADAS control unit and changes its detecting function.
- Lane camera unit monitors lane markers of the traveling lane and transmits the detected lane condition signal to ADAS control unit via ITS communication.
- ADAS control unit starts the control as follows, based on a vehicle detection signal, lane condition signal, turn signal and dimmer signal transmitted from BCM via CAN communication:
- Blind Spot Warning/Blind Spot Intervention indicator signal and Blind Spot Warning/Blind Spot Intervention indicator dimmer signal transmission to side radar.
- Buzzer signal transmission to warning buzzer.
- Calculation of necessary yaw moment and transmission of the target yaw moment signal to ABS actuator and electric unit (control unit).
- Side radar transmits an indicator operation signal to the Blind Spot Warning/Blind Spot Intervention indicator according to Blind Spot Warning/Blind Spot Intervention indicator operation signal and Blind Spot Warning/
Blind Spot Intervention indicator dimmer signal.
- ABS actuator and electric unit (control unit) controls brake pressure of four wheels respectively according to the target yaw moment signal.
Operation Condition of Blind Spot Intervention System
ADAS control unit performs the control when the following conditions are satisfied.
- Blind Spot Intervention ON indicator: ON
- When the vehicle drives at 60 km/h (37 MPH) or more to the forward direction.
NOTE:
- When the Blind Spot Intervention system setting on the navigation screen is ON.
- The Blind Spot Intervention system may not function properly, depending on the situation. Precautions For Blind Spot Warning/Blind Spot Intervention.
- Blind Spot Intervention braking will not operate or will stop operating and only a warning chime will sound under the following conditions.
- When the brake pedal is depressed.
- When the accelerator pedal is depressed while brake control assist is provided.
- When steering quickly.
- When the ICC, DCA, FCW or IBA warnings sound.
- When the hazard warning flashers are operated.
- When driving on a curve at a high speed.
- Under the following conditions, the Blind Spot Intervention system will be turned off automatically, a beep will sound and the Blind Spot Intervention ON indicator will blink. The BSW system is still available, but the Blind
Spot Intervention system will not be available until the conditions no longer exist.
- When the VDC system (except TCS function) or ABS operates.
- When the VDC system is turned OFF.
- When the 4WD shift switch is not AUTO position.
- When the SNOW mode switch is turned ON.

BULB CHECK ACTION AND FAIL-SAFE INDICATION.












NOTE:
Time shown in the figure is approximate time.
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