System Description
WARNING: This page is about a different car, the 2015 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
SYSTEM DIAGRAM
ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM
INPUT SIGNAL ITEM
| Transmit Unit | Signal Name | Description | ||
|---|---|---|---|---|
| ABS actuator and electric unit (control unit) | CAN communication | ABS malfunction signal | Receives a malfunction state of ABS. | |
| ABS operation signal | Receives an operational state of ABS. | |||
| ABS warning lamp signal | Receives an operational state of ABS warning lamp. | |||
| TCS malfunction signal | Receives a malfunction state of TCS. | |||
| TCS operation signal | Receives an operational state of TCS. | |||
| VDC OFF switch signal | Receives an ON/OFF state of VDC. | |||
| VDC malfunction signal | Receives a malfunction state of VDC. | |||
| VDC operation signal | Receives an operational state of VDC. | |||
| Vehicle speed signal (ABS) | Receives wheel speeds of front wheels. | |||
| Yaw rate signal | Receives yaw rate acting on the vehicle. | |||
| Stop lamp switch | Receives stop lamp switch state. | |||
| ECM | CAN communication | Engine speed signal | Receives engine speed. | |
| Stop lamp switch signal | Receives an operational state of the brake pedal. | |||
| Brake pedal position switch signal | Receives an operational state of the brake pedal. | |||
| Combination meter | CAN communication | System selection signal | Receives a selection state each item in "Driver Aids" selected with the integral switch. | |
| ICC sensor | ITS communication | ICC sensor signal | Receives detection results, such as the presence or absence of a leading vehicle and distance from the vehicle. | |
| TCM | CAN communication | Input speed signal | Receives the number of revolutions of input shaft. | |
| Shift position signal | Receives a selector lever position | |||
| Current gear position signal | Receives a current gear position | |||
| Output shaft revolution signal | Receives the number of revolutions of output shaft. | |||
| Steering angle sensor | CAN communication | Steering angle sensor malfunction signal | Receives a malfunction state of steering angle sensor. | |
| Steering angle sensor signal | Receives the number of revolutions, turning direction of the steering wheel. | |||
| Steering angle speed signal | Receives the turning angle speed of the steering wheel. | |||
OUTPUT SIGNAL ITEM
| Reception unit | Signal name | Description | ||
|---|---|---|---|---|
| Combination meter | CAN communication | Meter display signal | Vehicle ahead detection indicator signal | Transmits a signal to display a state of the system on the combination meter. |
| PFCW/FEB system indicator signal | Transmits a signal to turn ON the PFCW/FEB system indicator. | |||
| Buzzer output signal | Transmits a buzzer output signal to activate the buzzer. | |||
| ICC sensor | ITS communication | Vehicle speed signal | Transmits a vehicle speed calculated by the ADAS control unit. | |
DESCRIPTION
- The PFCW system will function when own vehicle is driven at speeds of approximately 3 MPH (5 km/h) and above.
- The Predictive Forward Collision Warning (PFCW) System alerts the driver, by the vehicle ahead detection indicator and chime, when the distance between own vehicle and a vehicle in front of the vehicle ahead becomes closer.
NOTE:
The PFCW/FEB system shares the diagnosis function with ICC system.
FUNCTION DESCRIPTION
The distance from the vehicle in front of the vehicle ahead and a relative speed are calculated by using the ICC sensor and an ICC sensor signal is transmitted to the ADAS control unit via ITS communication. When judging the necessity of warning according to the received ICC sensor signal, the ADAS control unit transmits a warning buzzer signal and meter display signal to the combination meter via CAN communication.
PFCW OPERATING CONDITION
- PFCW/FEB system display (white): ON
- Vehicle speed: Approximately 3 MPH (5 km/h) and above.
- Vehicle in front of the vehicle ahead: Detected.
NOTE:
ON/OFF of PFCW/FEB system is performed with the integral switch of the combination meter information display.