VEHICLE BATTERY PACK SAFETY MONITORING DEVICE

• Main Authors: MURAMATSU KATSUYOSHI, IWASHITA SATOSHI, HIRAI TOSHIHARU, YOKOTSUJI HOKUTO
• Format: Patent
• Language: English; Japanese
• Published: 24.06.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

To provide a vehicle battery pack safety monitoring device that can quickly and reliably determine the thermal runaway of a battery cell that requires the evacuation of an occupant.SOLUTION: A vehicle battery pack safety monitoring device includes an atmospheric pressure sensor that is installed in a vehicle battery pack that detects the atmospheric pressure in the vehicle battery pack, an atmospheric pressure change calculation unit that calculates a change in atmospheric pressure detected by the atmospheric pressure sensor, and an abnormality determination unit that determines whether the battery cell housed in the vehicle battery pack is abnormal on the basis of the change in atmospheric pressure calculated by the atmospheric pressure change calculation unit.SELECTED DRAWING: Figure 1 【課題】乗員の避難を要するような電池セルの熱暴走を迅速かつ確実に判定できる車両用電池パックの安全監視装置を提供する。【解決手段】車両用電池パックの安全監視装置は、車両用電池パック内に設置され、前記車両用電池パック内の気圧を検出する気圧センサと、前記気圧センサで検出された気圧の変化を演算する気圧変化演算部と、前記気圧変化演算部によって演算された気圧の変化に基づいて前記車両用電池パック内に収容された電池セルが異常であるか否かを判定する異常判定部とを備える。【選択図】 図１