System Description
SYSTEM DIAGRAM
| Component | Description |
|---|---|
| ADAS control unit | Component Description |
| ECM | ECM |
| ABS Actuator and Electric Unit (Control Unit) | ABS Actuator and Electric Unit (Control Unit) |
| Steering angle sensor | Steering Angle Sensor |
| Combination meter | Combination Meter |
| Display control unit | Display Unit |
| Distance sensor | Component Description |
ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM
Input Signal Item
| Transmit unit | Signal name | Description | ||
|---|---|---|---|---|
| ABS actuator and electric unit (control unit) | CAN communication | Vehicle speed signal (ABS) | Receives wheel speeds of four wheels | |
| Display control unit | CAN communication | System selection signal | Receives a selection state of each item in "Driving Aids" selected with the integral switch | |
| Distance sensor | CAN communication | Distance sensor signal | Receives detection results, such as the presence or absence of a leading vehicle and distance from the vehicle | |
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 information display |
| PFCW system display signal | Transmits a signal to turn ON the PFCW/FEB system indicator | |||
| Distance sensor | CAN 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 5 km/h (3 MPH) 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/ProPILOT Assist system.
FUNCTION DESCRIPTION
The distance from the vehicle in front of the vehicle ahead and a relative speed are calculated by using the distance sensor and an distance sensor signal is transmitted to the ADAS control unit via CAN communication. When judging the necessity of warning according to the received distance sensor signal, the ADAS control unit transmits a driver assistance buzzer signal to the chassis control module via CAN communication and meter display signal to the combination meter via CAN communication.
PFCW Operating Condition
- PFCW/FEB system display (white): ON (Speaker icon ON in "Forward" position)
- Vehicle speed: Approximately 5 km/h (3 MPH) and above.
- Vehicle in front of the vehicle ahead: Detected.
NOTE:
- ON/OFF of PFCW/FEB system is performed with the integral switch.
- Setting of PFCW/FEB is performed in synchronization with the log-in function of on-board personal assistant. For details of the log-in function, Refer to System Description .