ELECTRIC PARKING BRAKE SYSTEM


  1. CONSTRUCTION


    1. A Hall IC type tension sensor is used. This sensor is connected to the equalizer in order to detect the tension of the parking brake cable.

    2. When the equalizer is pulled to the left (as shown in the illustration below) due to the motor operating, the shaft and built-in magnet are also moved in the same direction.

    3. When the shaft is moved to the left, the case is moved in the same direction via the springs. Thus, the parking brake cable is pulled.

    4. The springs compress in accordance with the tension acting on the parking brake cable, causing the positions of the case and magnet to change. As a result, the magnetic flux density changes. Hall ICs detect changes in the magnetic flux density, convert those changes into electrical signals, and then transmit them to the parking brake ECU assembly. Based on the signals received from Hall ICs, the parking brake ECU assembly calculates the tension of the parking brake cable.

      A004CD5C01
      *1 Equalizer *2 Parking Brake Cable
      *3 Case *4 Spring
      *5 Shaft *6 Hall IC
      *7 Magnet - -