PROBLEM TO BE SOLVED: To provide a cooling device for a secondary battery that speedily resets a warning of clogging of a filter when the filter is cleaned after starting giving the warning.SOLUTION: A cooling device 100 for a secondary battery comprises a cooling fan 10, a filter 1 for the cooling fan 10, a battery temperature sensor 42 detecting a temperature of the secondary battery 20, and a control part 50 varying a correction coefficient of an expression for calculating cooling capability. The control part 50 is configured to: calculate an estimated temperature of the secondary battery 20 using the cooling capability and a heating value of the secondary battery 20; compare the estimated temperature with a battery temperature detected by the battery temperature sensor 42; perform correction coefficient update processing for increasing or decreasing the correction coefficient by a certain quantity according to a comparison result at predetermined intervals of time; let a notice part 80 give a warning and cancel the warning according to a value of the correction coefficient; and increase the correction coefficient by a quantity larger than the certain quantity when the estimated temperature is higher than the battery temperature continuously in the correction coefficient update processing.SELECTED DRAWING: Figure 1
【課題】二次電池用の冷却装置において、フィルタの目詰まりの警告を開始した後に、フィルタの清掃が行われた際には、速やかに警告を解除する。【解決手段】二次電池用の冷却装置100において、冷却ファン10と、冷却ファン10のフィルタ1と、二次電池20の温度を検出する電池温度センサ42と、冷却能力を算出する式における補正係数を変化させる制御部50と、を備え、制御部50は、冷却能力と二次電池20の発熱量とを用いて二次電池20の推定温度を算出し、推定温度と電池温度センサ42で検出した電池温度とを比較し、比較結果に応じて補正係数を一定量だけ増減させる補正係数更新処理を予め定められた時間の間隔で行い、補正係数の値に応じて報知部80に警告と警告の解除を行わせ、補正係数更新処理において推定温度が電池温度よりも高い状態が連続する場合には、補正係数を、一定量よりも大きな量だけ増加させる。【選択図】図1
COOLING DEVICE FOR SECONDARY BATTERY
二次電池用の冷却装置
2017-06-29
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |