System Description

SYSTEM


System Description


SYSTEM DIAGRAM






BSW CONTROL MODULE INPUT/OUTPUT SIGNAL ITEM
BSW control module receives signals via CAN communication. It also detects vehicle conditions that are necessary for BSW control.

Input Signal Item






Output Signal Item






FUNCTION DESCRIPTION
- The BSW system can help alert the driver of other vehicles in adjacent lanes when changing lanes.
- The BSW system uses side radar installed near the rear bumper to detect vehicles in an adjacent lane.
- The side radar can detect vehicles on either side of vehicle within the detection zone shown as illustrated.
- This detection zone starts from the outside mirror of vehicle and extends approximately 10 ft (3.0 m) behind the rear bumper, and approximately 10 ft (3.0 m) sideways.
- The BSW system operates above approximately 32 km/h (20 MPH).
- If the side radar detects vehicles in the detection zone, the BSW indicator illuminates.





- If the driver then activates the turn signal, a buzzer will sound twice and the BSW indicator will blink.

NOTE:
A buzzer sounds if the side radar have already detected vehicles when the driver activates the turn signal. If a vehicle comes into the detection zone after the driver activates the turn signal, then only the BSW indicator blinks and no buzzer sounds.






BSW SYSTEM OPERATION DESCRIPTION
- BSW control module enables BSW system.
- The BSW control module turns on the BSW system when the warning systems switch is turned ON.
- Side radar detects a vehicle in the adjacent lane, and transmits the vehicle detection signal to BSW control module via BSW communication.
- BSW control module starts the control as follows, based on a vehicle detection signal, turn signal and dimmer signal transmitted from BCM via CAN communication:
- Buzzer output signal transmission to combination meter via CAN communication.
- BSW indicator signal and BSW indicator dimmer signal transmission to side radar via BSW communication.
- Side radar transmits an indicator operation signal to the BSW indicator according to BSW indicator signal and BSW indicator dimmer signal.

Operation Condition of BSW System
BSW control module performs the control when the following conditions are satisfied.
- When the warning systems switch in turned ON.
- When the vehicle drives at approximately 32 km/h (20 MPH) or more to the forward direction.

NOTE:
- After the operating conditions of warning are satisfied, the warning continues until the vehicle speed reaches approximately 29 km/h (18 MPH)
- The BSW system may not function properly, depending on the situation. .

BULB CHECK ACTION AND FAIL-SAFE INDICATION







*: If BSW initial state is ON, warning systems ON indicator continues turned ON.

NOTE:
- The condition is seen regardless BSW system status (ON/OFF).
- If either of the side radars is in factory-default mode, the BSW warning lamp blinks.
- New side radars are in factory-default mode.
*1: Blinking cycle when the side radar is in factory-default mode condition





NOTE:
Time shown in the figure is approximate time.
*2: Blinking cycle when the side radar blockage condition





NOTE:
Time shown in the figure is approximate time.

BSW INITIAL STATE CHANGE

CAUTION:
Never change BSW initial state "ON" ⇒ "OFF" without the consent of the customer.
BSW initial state can be changed.
- BSW initial ON* - BSW function is automatically turned ON, when the ignition switch OFF ⇒ ON.
- BSW initial OFF - BSW function is still OFF when the ignition switch OFF ⇒ ON.
*: Factory setting

How to change FCW/LDW/BSW initial state
1. Turn ignition switch ON.
2. Switch BSW/FCW/LDW and LDP functions to OFF.
3. Push and hold warning systems switch for more than 4 seconds.
4. Buzzer sounds and blinking of the lane departure warning lamp informs that the BSW/LDW/FCW initial state changes completed.