| 摘要 |
<p>A system 20 for discharging the electric charge stored in a traction battery 12 of an electric vehicle or hybrid electric vehicle in a crash event comprises a traction battery having a plurality of cells C1, C2, C3, C4, C5, a battery management system 19 and a sensor 16 for detecting a crash event. The battery management system, upon receiving a signal indicative that a crash event has occurred, initiates a discharge cycle of the electrical energy stored in one or more of the cells of the battery. The battery management system may comprise a passive battery regulator including resistors R1, R2, R3 connected across respective cells and switches S1, S2, S3 connected in series with respective resistors. The sensor may measure deceleration or detect a collision impact. The switches may closed simultaneously or in a predetermined sequential order. A temperature sensor may be provided to monitor the temperature of the battery as the cells are discharged.</p> |
