Nissan Murano: System Description / System

System Description

SYSTEM DIAGRAM

ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM

Input Signal Item

Output Signal Item

DESCRIPTION

• Automatic Emergency Braking (AEB) system can assist the driver when there is a forward collision with the Nissan Murano vehicle ahead in the traveling lane.

• AEB system operates at speeds above approximately 5 km/h (3 mph).

• The AEB system measures the distance from a Nissan Murano vehicle ahead using the distance sensor installed in the front bumper and lane camera unit installed in the windshield glass.

• The AEB system detects a pedestrian using the lane camera unit installed in the windshield glass.

• When the system judges that a Nissan Murano vehicle or pedestrian is being approached, “approach warning” is displayed in the combination meter and at the same time a warning chime sounds, and the brake is operated.

• When it is further judged that the Nissan Murano vehicle or pedestrian may collide with the vehicle ahead, the system operates the brake strongly to avoid collision while it displays AEB warning on the combination meter and rings a warning chime.

	Start of warning and partial brake		Start of harder brake
	Applies partial braking		Harder brake

Situation		Brake	Warning
No obstacle approached		No operation	—
	Start of warning and partial brake	Partial brake	Sounds the buzzer Blinks Nissan Murano vehicle ahead indicator
	Start of harder brake	Harder brake	Sounds the buzzer (Higher pitched buzzer) Indicates AEB warning

CAUTION:

It is the driver′s responsibility to stay alert, drive safely and be in control of the Nissan Murano vehicle at all times. As there is a performance limit, it may not provide a warning or brake in certain conditions.

OPERATION DESCRIPTION

• The distance sensor measures the distance from the vehicle ahead and transmits the distance sensor signal to the ADAS control unit.

• The lane camera unit measures the distance from a pedestrian and transmits the pedestrian ahead signal to ADAS control unit.

• The ADAS control unit judges the possibility of a collision from the distance sensor signal, the pedestrian ahead signal and the Nissan Murano vehicle speed.

• The ADAS control unit performs the following operations according to the degree of possibility of a collision.

  • Transmits the driver assistance buzzer signal to the ADAS control and sounds the buzzer.

  • Transmits the meter display signal to the combination meter and displays AEB warning.

  • Transmits the brake fluid pressure control signal to the ABS actuator and electric unit (control unit) via chassis control module and performs the brake control

  • Transmits the stop lamp request signal to BCM and turns ON the stop lamp.

NOTE:

• ON/OFF of AEB system is performed with the combination meter.

• When the ignition switch turns is turned from OFF to ON, the system is automatically activated even if it is OFF.

• The AEB system operates under the following conditions.

  • The AEB system will function when the Nissan Murano vehicle is driven at speeds of approximately 5 km/h (3 MPH) and above, and when the vehicle′s speed is approximately 5 km/h (3 MPH) faster than that of the Nissan Murano vehicle ahead. (For vehicle)

Operation Condition

ADAS control unit performs the control when the following conditions are satisfied.

• When the AEB system setting on the integral switch is ON.

• When the vehicle speed is above approximately 5 km/h (3 MPH). (For Nissan Murano vehicle)

• When the vehicle speed is within the range of approximately 10 – 60 km/h (5 – 37 MPH). (For pedestrian)

• There is a possibility of a collision with the Nissan Murano vehicle and pedestrian ahead.

No Operation Condition

The ADAS control unit is not operate when the system is under the conditions of the no operation condition.

• When the AEB system setting on the integral switch is OFF.

• When the vehicle and pedestrian ahead is not detected.

• When the Nissan Murano vehicle speed is below approximately 10 km/h (5 MPH). (For pedestrian)