PROBLEM TO BE SOLVED: To provide a secondary battery cooling system that can efficiently cool a battery while charging and discharging are stopped.SOLUTION: In a secondary battery cooling system 80 including a temperature sensor for detecting the temperature of a battery 10 mounted in an electric vehicle 100, an electric cooling fan 40 for cooling the battery 10, and a controller 70, the controller 70 determines necessity of cooling of the battery 10 based on the temperature of the battery 10 detected by a temperature sensor and an estimated calorific value of the battery 10 when an ignition switch 20 secured to the electric vehicle 100 is turned off. When the temperature of the battery 10 is less than a predetermined temperature in the above determination and the estimated calorific value of the battery 10 exceeds a predetermined amount, the period from the time of the determination until the start time of the operation of the electric cooling fan 40 is set to be longer as compared with a case where the calorific value does not exceed the predetermined amount, and the battery 10 is cooled while the ignition switch 20 is turned off.SELECTED DRAWING: Figure 1
【課題】充放電停止中のバッテリを効率的に冷却する。【解決手段】電動車両100に搭載されたバッテリ10の温度を検出する温度センサと、バッテリ10を冷却する電動冷却ファン40と、制御部70と、を備える二次電池冷却システム80であって、制御部70は、電動車両100に取り付けられたイグニッションスイッチ20がオフになった際に、温度センサで検出したバッテリ10の温度と、推定したバッテリ10の発熱量とに基づいてバッテリ10の冷却要否を判断し、該判断の際にバッテリ10の温度が所定温度未満で、且つ、推定したバッテリ10の発熱量が所定量を超える場合には、発熱量が所定量を超えない場合に比べて判断の時期から電動冷却ファン40の駆動開始時期までの期間を長くし、イグニッションスイッチ20がオフである間にバッテリ10を冷却する。【選択図】図1
SECONDARY BATTERY COOLING SYSTEM
二次電池冷却システム
2016-09-29
Patent
Elektronische Ressource
Japanisch
IPC: | 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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |