System Description
WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
- The sonar sensor installed to the front bumper and the rear bumper detects obstacles around the bumper.
- The distance between the bumper and the obstacle is informed of the driver with different frequency and sort of buzzers (low/high sound).
Activation condition
Front sensor
The front sensor activates and outputs the warning buzzer (low sound) in the following conditions.
- Cancel switch OFF
- P range signal OFF
- The vehicle speed signal is within the activation condition.
- Obstacle detection
Rear sensor
The rear sensor activates and outputs the warning buzzer (high sound) in the following conditions.
- Cancel switch OFF
- Reverse signal ON
- P range signal OFF
- Obstacle detection
CANCEL SWITCH SPECIFICATIONS
| x: applicable | |||||||
|---|---|---|---|---|---|---|---|
| Cancel switch | Reverse signal | P range signal | Vehicle speed signal | Front sensor (Buzzer integrated in sonar control unit) | Rear sensor (Buzzer separated to other unit) | ||
| OFF | ON | OFF | - | X(1) | X(1) | ||
| OFF | OFF | OFF | Within the condition | X | - | ||
|
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Vehicle speed signal activation condition range
- The sensor activation turns OFF when the vehicle drives at 15 km/h (9.3 MPH) or more to the forward direction.
- The sensor activation starts when the vehicle speed is 10 km/h (6.2 MPH) or less.
Obstacle detection distance
- The sonar control unit controls the obstacle detection distance. The detection distance differs between the corner sensor and the center sensor.
- The sonar control unit outputs the warning buzzer frequency at 3 levels according to the corner sensor detection condition.
- The sonar control unit outputs the warning buzzer frequency at 4 levels according to the center sensor detection condition.
- The detection condition setting is adjustable to 4 levels with CONSULT-III. Refer to CONSULT-III FUNCTION (SONAR) .
- CONSULT-III enables the center sensor (rear) not to detect the range of 40 cm (15.7 in) or less to prevent from the trailer hitch vehicles misdetection. Refer to CONSULT-III FUNCTION (SONAR) .
DETECTION DISTANCE TABLE
| Detection distance | ||
|---|---|---|
| Warning item | Corner sensor | Center sensor |
| First stage warning | - | 70 - 110 cm (27.5 - 43.3 in) |
| Second stage warning | 60 - 70 cm (23.6 - 27.5 in) | 60 - 70 cm (23.6 - 27.5 in) |
| Third stage warning | 40 - 60 cm (15.7 - 23.6 in) | 40 - 60 cm (15.7 - 23.6 in) |
| Fourth stage warning | Less than 40 cm (15.7 in) | Less than 40 cm (15.7 in) |
Warning buzzer frequency
- The warning buzzer output frequency changes 4 levels (for center) and 3 levels (for corner) according to the detection distance.
- The nearest sensor from the detected obstacle applies the buzzer output frequency if plural sensors detect any obstacle simultaneously.
- 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.)