HYBRID BATTERY SYSTEM


  1. CONSTRUCTION


    1. The hybrid battery junction block assembly consists of the System Main Relays (SMRs), precharge resistor and battery current sensor.

    2. The SMRs are relays that connect and disconnect the HV battery and power cable (frame wire) in accordance with the signal from the hybrid vehicle control ECU. 3 relays are provided; SMRB for the battery positive (+) side, SMRG for the battery negative (-) side, and SMRP for pre-charging.

      A001LPZC02
      *1 Hybrid Battery Junction Block *2 SMRB
      *3 SMRP *4 SMRG
      *a Battery Current Sensor *b Precharge Resistor

    3. A battery current sensor, which is built into the hybrid battery junction block assembly, is used to detect the HV battery charging and discharging amperage.

    4. The hybrid vehicle control ECU optimally controls the hybrid system so that the SOC of the HV battery can always be within a specified range according to the amperage information that is received via the battery smart unit (battery voltage sensor).