STOP AND START


  1. CONSTRUCTION


    1. The backup boost converter uses a semiconductor relay. The semiconductor relay also functions as a fuse. When overcurrent is detected, the relay is turned off to protect the circuit.

    2. The backup boost converter supplies battery voltage to help make up for the voltage drop that occurs when the engine is restarted. This prevents the operation of the following equipment from being interrupted due to low battery voltage.


      • Remote Operation Switch

      • Air Conditioning Control Assembly

      • Telematics Transceiver*1

      • Radio Receiver Assembly

      • Multi-display Assembly

      • Power Steering ECU Assembly

      • Map Light Assembly

      • Forward Recognition Camera*2

      • Inner Rear View Mirror Assembly

      • Millimeter Wave Radar Sensor Assembly*2

      • Driving Support ECU Assembly*2

      • Yawrate Sensor

      • Steering Sensor

      • Skid Control ECU

      • Network Gateway ECU

      • Front Door Inside Handle Illumination Light Assembly LH

      • Front Door Inside Handle Illumination Light Assembly RH

      • Tire Pressure Warning ECU and Receiver

      • Blind Spot Monitor Sensor LH*3

      • Blind Spot Monitor Sensor RH*3

      *1: Models with Telematics Transceiver

      *2: Models with Lexus Safety System +

      *3: Models with Blind Spot Monitor System

    3. An external backup boost converter (eco run vehicle converter assembly) is used.

    4. When the audio system is used during idle stop, the external backup boost converter (eco run vehicle converter assembly) compensates for the voltage drop to supplement audio playback by stabilizing the sound quality.

      Figure 1. Backup Boost Converter

      A001GZAE03

      Figure 2. External Backup Boost Converter (Eco Run Vehicle Converter Assembly)

      A001HBBE04
      *1 BBC PA Fuse
      *2 External Backup Boost Converter (Eco Run Vehicle Converter Assembly)
      *3 Stereo Component Amplifier Assembly
      *4 Engine Stop and Start ECU