Camera Assistance Sonar Function

• Sonar sensors are installed on front bumper and rear bumper. When an obstacle is detected while around view monitor is displayed, a sonar indicator display and buzzer sound notify the driver of the proximity of an obstacle. When an obstacle is detected while around view monitor is not displayed, around view monitor screen is displayed automatically, and then notification is similarly as per the display and buzzer sound.
• Approaching distance between bumper and obstacle is displayed in 3 stages according to the color of the sonar indicator in display and blinking cycle of indicator.
• Warning by buzzer sound notifies distance to obstacle according to a 3-stage cycle.

System Operation Description 

• Sonar control unit receives shift position signal from TCM and vehicle speed signal from ABS actuator control unit via CAN communication, and controls ON/OFF of sonar system.
• Sonar control unit transmits detection signal and detection distance signal to around view monitor via CAN communication, according to signal from corner sensor depending on conditions as shown in the following table. Around view monitor displays the applicable sonar indicator.

  Sonar system operation condition			Sonar operation
  Shift position	Vehicle speed	Obstacle	Sonar indicator	Buzzer
  R position	Less than 10 km/h (6 MPH)	Yes	Detection status is displayed	Yes
  D position	Less than 10 km/h (6 MPH)	Yes	Detection status is displayed	Yes
  P or N position	Less than 10 km/h (6 MPH)	Yes	Detection status is displayed*	None
  --	10 km/h (6 MPH) or more	Yes	Not displayed	None

  *: Only when camera image is displayed.

• When sonar is OFF in "Settings", sonar OFF display is displayed. Sonar OFF display is a function that displays frame in orange on the 4 corners of vehicle icon on Birds-Eye view to notify user of sonar OFF status. When sonar is switched to OFF by "Settings", sonar OFF display is only displayed for rear side of vehicle icon
• Sonar control unit is equipped with diagnosis function. Corner sensor malfunction and sensor harness open circuit can be detected. Malfunction status is transmitted to around view monitor control unit. Sonar OFF status is displayed and notified to the user.

Obstacle Detection Distance 

• Sonar control unit switches output of sonar indicator and buzzer in 3 stages according to obstacle detection distance from corner sensor.
• Sonar control unit can change setting of obstacle detection distance in 3 stages.
• Sonar control unit can change setting of buzzer volume in 3 stages.

Courtesy of NISSAN NORTH AMERICA, INC.

Sonar Indicator Display 

• When around view monitor control unit receives detection signal and detection distance signal from sonar control unit, the around view monitor control unit displays the sonar indicator on display control unit.
• Around view monitor control unit changes display color and indicator blinking cycle according to detection distance.

Courtesy of NISSAN NORTH AMERICA, INC.

Warning Buzzer Frequency 

• The warning buzzer cycle changes between 4 levels (for front center and rear center) and 3 levels (for corner) according to the detection distance.
• The nearest sensor from the detected obstacle determines the buzzer cycle if plural sensors detect any obstacle simultaneously detected obstacles.
• If both the front and the rear sensor detect different objects simultaneously, the sensor which detects the closer object is prior to another sensor. If the detection distance is equal between the front and the rear, warning buzzer of rear sounds. (The front and the rear buzzers do not output the sounds simultaneously.)

Courtesy of NISSAN NORTH AMERICA, INC.