TOYOTA PARKING ASSIST-SENSOR SYSTEM(for Sedan)


  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)

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

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  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) 150 +/- 15 150 +/- 15
      Middle 375 +/- 37.5 to 250 +/- 25 (14.8 +/- 1.5 to 9.8 +/- 1.0) 75 +/- 7.5 75 +/- 7.5
      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) 150 +/- 15 650 +/- 15
      Long 550 +/- 55 to 425 +/- 42.5 (21.7 +/- 2.2 to 16.7 +/- 1.7) 150 +/- 15 150 +/- 15
      Middle 425 +/- 42.5 to 300 +/- 30 (16.7 +/- 1.7 to 11.8 +/- 1.2)*1 75 +/- 7.5 75 +/- 7.5
      425 +/- 42.5 to 250 +/- 25 (16.7 +/- 1.7 to 9.8 +/- 1.0)*2
      Short 300 +/- 30 or less (11.8 +/- 1.2 or less)*1*3 Continuous Sound 0
      250 +/- 25 or less (9.8 +/- 1.0 or less)*2
      Front Side*3 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) 150 +/- 15 150 +/- 15
      Middle 375 +/- 37.5 to 250 +/- 25 (14.8 +/- 1.5 to 9.8 +/- 1.0) 75 +/- 7.5 75 +/- 7.5
      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) 150 +/- 15 650 +/- 65
      Long 550 +/- 55 to 425 +/- 42.5 (21.7 +/- 2.2 to 16.7 +/- 1.7) 150 +/- 15 150 +/- 15
      Middle 425 +/- 42.5 to 300 +/- 30 (16.7 +/- 1.7 to 11.8 +/- 1.2)*1 75 +/- 7.5 75 +/- 7.5
      425 +/- 42.5 to 250 +/- 25 (16.7 +/- 1.7 to 9.8 +/- 1.0)*2
      Short 300 +/- 30 or less (11.8 +/- 1.2 or less)*1*3 Continuous Sound 0
      250 +/- 25 or less (9.8 +/- 1.0 or less)*2

      *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. 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 and rear center). 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:

      *: Models with simple intelligent parking assist system

      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) 75/75 (*) 75/75 (Rear) 75/75 (Rear) 75/75 (Rear)
      Long Continuous Sound (Front) 75/75 (Front) 150/150 (*) 150/150 (Rear) 150/150 (Rear)
      Longest Continuous Sound (Front) 75/75 (Front) 150/150 (Front) 150/650 (*) 150/650 (Rear)
      Not detected Continuous Sound (Front) 75/75 (Front) 150/150 (Front) 150/650 (Front) None

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

      Figure 3. Timing 1

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