TOYOTA PARKING ASSIST-SENSOR SYSTEM

Info Added 2017-04-18


  1. CONSTRUCTION


    1. When the ultrasonic sensor transmits ultrasonic waves and receives the reflected waves from an obstacle, the buzzer sounds in stages in accordance with the distance to the obstacles.

      Figure 1. No. 1 Clearance Warning Buzzer (Front)

      B003XGS

      Figure 2. No. 2 Clearance Warning Buzzer (Rear)

      B003XH9

  2. OPERATION


    1. Depending on the detection distance and the detection area, the sound pattern of the No. 1 clearance warning buzzer will vary.

      Detection Area

      Detection Distance

      (mm (in.))

      		 Buzzer Sound Pattern

      On

      (msec.)

      Off

      (msec.)
      Front Corner Long

      500 +/- 50 to 375 +/- 37.5

      (19.7 +/- 2.0 to 14.8 +/- 1.5)

      		 200 +/- 20 200 +/- 20
      Middle

      375 +/- 37.5 to 250 +/- 25

      (14.8 +/- 1.5 to 9.8 +/- 1.0)

      		 100 +/- 10 100 +/- 10
      Short

      250 +/- 25 or less

      (9.8 +/- 1.0 or less)

      		 Continuous Sound 0
      Front Center Longest

      1000 +/- 100 to 550 +/- 55

      (39.4 +/- 3.9 to 21.7 +/- 2.2)

      		 200 +/- 20 500 +/- 50
      Long

      550 +/- 55 to 425 +/- 42.5

      (21.7 +/- 2.2 to 16.7 +/- 1.7)

      		 200 +/- 20 200 +/- 20
      Middle

      425 +/- 42.5 to 300 +/- 30

      (16.7 +/- 1.7 to 11.8 +/- 1.2)

      		 100 +/- 10 100 +/- 10
      Short

      300 +/- 30 or less

      (11.8 +/- 1.2 or less)*1

      		 Continuous Sound 0

      250 +/- 25 or less

      (9.8 +/- 1.0 or less)*2
      Front Side*3 Long

      1000 +/- 50 to 375 +/- 37.5

      (39.4 +/- 2.0 to 14.8 +/- 1.5)

      		 200 +/- 20 200 +/- 20
      Middle

      375 +/- 37.5 to 250 +/- 25

      (14.8 +/- 1.5 to 9.8 +/- 1.0)

      		 100 +/- 10 100 +/- 10
      Short

      250 +/- 25 or less

      (9.8 +/- 1.0 or less)

      		 Continuous Sound 0

      *1: While the simple-intelligent parking assist system is not operating

      *2: While the simple-intelligent parking assist system is operating

      *3: Models with simple intelligent parking assist system

    2. Depending on the detection distance and the detection area, the sound pattern of the No. 2 clearance warning buzzer will vary.

      Detection Area

      Detection Distance

      (mm (in.))

      		 Buzzer Sound Pattern

      On

      (msec.)

      Off

      (msec.)
      Rear Corner Long

      500 +/- 50 to 375 +/- 37.5

      (19.7 +/- 2.0 to 14.8 +/- 1.5)

      		 200 +/- 20 200 +/- 20
      Middle

      375 +/- 37.5 to 250 +/- 25

      (14.8 +/- 1.5 to 9.8 +/- 1.0)

      		 100 +/- 10 100 +/- 10
      Short

      250 +/- 25 or less

      (9.8 +/- 1.0 or less)

      		 Continuous Sound 0
      Rear Center Longest

      1500 +/- 150 to 550 +/- 55

      (59.1 +/- 5.9 to 21.7 +/- 2.2)

      		 200 +/- 20 500 +/- 50
      Long

      550 +/- 55 to 425 +/- 42.5

      (21.7 +/- 2.2 to 16.7 +/- 1.7)

      		 200 +/- 20 200 +/- 20
      Middle

      425 +/- 42.5 to 300 +/- 30

      (16.7 +/- 1.7 to 11.8 +/- 1.2)

      		 100 +/- 10 100 +/- 10
      Short

      300 +/- 30 or less

      (11.8 +/- 1.2 or less)*1

      		 Continuous Sound 0

      250 +/- 25 or less

      (9.8 +/- 1.0 or less)*2
      Rear Side*3 Long

      1000 +/- 50 to 375 +/- 37.5

      (39.4 +/- 2.0 to 14.8 +/- 1.5)

      		 200 +/- 20 200 +/- 20
      Middle

      375 +/- 37.5 to 250 +/- 25

      (14.8 +/- 1.5 to 9.8 +/- 1.0)

      		 100 +/- 10 100 +/- 10
      Short

      250 +/- 25 or less

      (9.8 +/- 1.0 or less)

      		 Continuous Sound 0

      *1: While the simple-intelligent parking assist system is not operating

      *2: While the simple-intelligent parking assist system is operating

      *3: Models with simple intelligent parking assist system

    3. When a sensor malfunction is detected or a sensor is frozen or dirty, the buzzer sounds 5 times according to the following timing:

      B003XGZE06

    4. The ultrasonic sensors are divided into 2 groups: a front section group (front corners, front center and front sides) and a rear section group (rear corners, rear center and rear sides). If multiple ultrasonic sensors detect obstructions at the same time, the No. 1/No. 2 clearance warning buzzer sounds as follows, in accordance with the detection distance and detection area of each group:

      Buzzer Sound Pattern ON/OFF Time (msec.)
      Detection Distance Front Section
      Short Middle Long Longest Not detected
      Rear Section Short Timing 1

      Continuous

      Sound (Rear)

      Continuous

      Sound (Rear)

      Continuous

      Sound (Rear)

      Continuous

      Sound (Rear)
      Middle

      Continuous

      Sound (Front)

      		 100/100 (*) 100/100 (Rear) 100/100 (Rear) 100/100 (Rear)
      Long

      Continuous

      Sound (Front)

      		 100/100 (Front) 200/200 (*) 200/200 (Rear) 200/200 (Rear)
      Longest

      Continuous

      Sound (Front)

      		 100/100 (Front) 200/200 (Front) 200/500 (*) 200/500 (Rear)
      Not detected

      Continuous

      Sound (Front)

      		 100/100 (Front) 200/200 (Front) 200/500 (Front) None

      *: The buzzer of the front or rear sensor, which is closest to the obstacle, sounds.

      B003XFLE01