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System Description
 
 
SYSTEM DIAGRAM
ComponentDescription
BCMSystem Description
Combination meter (FULL TFT METER)Combination Meter
Combination meter (7 INCH INFORMATION DISPLAY)Combination Meter
Steering angle sensorSteering Angle Sensor
ABS actuator and electric unit (control unit)ABS Actuator and Electric Unit (Control Unit)
ADAS control unit 2ADAS Control Unit 2
 
 
ADAS CONTROL UNIT 2 INPUT/OUTPUT SIGNAL ITEM
 
 
Input Signal Item
Transmit unitSignal nameDescription
ABS actuator and electric unit (control unit)CAN communicationVehicle speed signal (ABS)Receives the wheel speed of the four wheels
Combination meterCAN communicationSystem selection signalReceives a selection state of each item selected with the combination meter
Steering angle sensorCAN communicationSteering angle sensor signalReceives the amount of rotation, rotational angle, and rotational direction of the steering wheel
BCMCAN communicationTurn indicator signalReceives an operational state of the turn signal light and hazard light
 
 
Output Signal Item
Reception unitSignal nameDescription
Combination meterCAN communicationMeter display signalTransmits a signal and displays the status on the vehicle information display
 
 
FUNCTION DESCRIPTION
  • Operates when the vehicle speed is 55 km/h (34 MPH) or higher.
  • Detects the steering status and judges the attentiveness of the driver. The driver's attentiveness is shown on the vehicle information display in eight stages (level indicator).
  • When it is judged from the degree of minor swerving in the steering operation that the vehicle is drifting, the driver is prompted to exert caution by the drift warning, which displays on the combination meter.
  • When the engine is stopped, the system is reset.
 
 
OPERATION DESCRIPTION
  • The DAA (Driver Attention Alert(DAA)) is controlled by the ADAS control unit 2.
  • ON/OFF of the DAA is performed by using the combination meter.
  • The steering angle sensor detects the degree of swerving in the steering operation.
  • When the ADAS control unit 2 judges that the steering operation is drifting it transmits the meter display signal to the combination meter.
 
 
OPERATION CONDITION
ADAS control unit 2 performs the control when the following conditions are satisfied.
  • DAA system: ON
  • Vehicle speed: Approximately 55 km/h (34 MPH) or more
note
  • DAA system ON/OFF can be set on the information display.
  • When the engine is stopped, the system is reset.
  • The DAA system may not function properly, depending on the situation.
 
 
CANCEL CONDITION
The ADAS control unit 2 cancels the operation when the system is under any conditions of the operation cancellation condition.
  • When the system malfunction occurs.