To provide an on-vehicle equipment cooling system capable of considering power loss in a charger and a cell, and optimally cooling the charger and cell.SOLUTION: The on-vehicle equipment cooling system comprises: a first calculation control part for calculating power loss in whole system based on power loss by a charger and a cell; a second calculation control part for calculating a system power loss change amount being a difference between power loss in whole system calculated previously by the first calculation control part and power loss in whole system calculated this time; and a third calculation control part for calculating a fan rotation number change amount being a difference between a rotation number of the cooling fan controlled previously and a rotation number of the cooling fan being controlled currently, then controlling the rotation number of the cooling fan based on the system power loss change amount and fan rotation number change amount. The third calculation control part lowers the rotation number of the cooling fan when the system power loss change amount to the fan rotation number change amount is positive, and increases the rotation number of the cooling fan when the same is negative.SELECTED DRAWING: Figure 1
【課題】充電器及び電池における電力損失を考慮して充電器及び電池を最適に冷却することができる車載機器冷却システムを提供する。【解決手段】一定時間が経過する毎に、充電器及び電池による電力損失に基づくシステム全体の電力損失を算出する第1の演算制御部と、第1の演算制御部において前回算出されたシステム全体の電力損失と今回算出されたシステム全体の電力損失との差分であるシステム電力損失変化量を算出する第2の演算制御部と、前回制御した冷却ファンの回転数と現在制御している冷却ファンの回転数との差分であるファン回転数変化量を算出し、システム電力損失変化量及びファン回転数変化量に基づいて、冷却ファンの回転数を制御する第3の演算制御部と、を備え、第3の演算制御部は、ファン回転数変化量に対するシステム電力損失変化量が、正である場合には冷却ファンの回転数を下降させ、負である場合には冷却ファンの回転数を上昇させる。【選択図】図1
ON-VEHICLE EQUIPMENT COOLING SYSTEM
車載機器冷却システム
2019-06-24
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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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