Collision Avoidance and Parking Assist Systems: Description and Operation

DESCRIPTION

The Back Warning System is active in 'R' range. This system uses ultrasonic sensors to detect objects behind the vehicle; the driver is alerted using 3-stage audible warning.

ALARM RANGE

First alarm : Object comes near to the sensor located at the rear of vehicle, within 81-120cm ± 15cm
Second alarm : Object comes near to the sensor located at the rear of vehicle, within 41-80cm ± 10cm
Third alarm : Object comes near to the sensor located at the rear of vehicle, within 40cm ± 10cm





NOTE:
1. Time tolerance of the above waveform : Time ± 10%
2. At nearer distance than 40cm, detection may not occur.
3. Alarm will be generated with vehicle reversing speed 10km/h or less.
For moving target, maximum operation speed shall be target approach speed of 10km/h.
4. When the vehicle or the target is moving, sequential alarm generation or effective alarm may fail.
5. False alarm may occur in the following conditions.
- Irregular road surface, gravel road, reversing toward grass.
- Horn, motor cycle engine noise, large vehicle air brake, or other object generating ultrasonic wave is near.
- When a wireless transmitter is used near the sensor.
- Dirt on the sensor.
- Sequential alarm may not occur due to the reversing speed or the target shape.