| 摘要 |
PURPOSE: A power relay assembly is provided to reduce a measurement value error of the hall-IC type current sensor influenced by an electromagnetic field generated in a relay of an over-current preventing circuit. CONSTITUTION: A power relay assembly (1000) includes a battery (100), a first main relay (301), a second main relay (302), an over-current preventing circuit (300), and a current measuring sensor (200). The first main relay is connected with the anode of the battery. The second main relay is connected with the cathode of the battery. The over-current preventing circuit connects a precharge resistance with a precharge relay to be connected with the first main relay. The current measuring sensor is placed between the anode of the battery and the first main relay or the cathode of the battery and the second main relay. The current measuring sensor pushes a bus bar connecting the anode with the first main relay or the cathode with the second main relay through a hall of a hall-IC type current sensor. The current measuring sensor measures a current value for calculating a residual capacity of the battery. |
