To improve user's convenience in the case where a charge rate of a battery mounted on a vehicle is displayed on a display part.SOLUTION: A charge rate display device 1 comprises: a first estimation part 121 for estimating a charge rate α of a battery B using a voltage of the battery B or a current flowing to the battery B; a second estimation part 122 for estimating an estimation error between the charge rate α estimated by the first estimation part 121 and a true charge rate of the battery B; an adjustment part 123 for estimating a correction amount on the basis of the estimation error estimated by the second estimation part 122 and adjusting the charge rate α estimated by the first estimation part 121 using the correction amount; and a display control part 124 for causing a display part 6 to display a charge rate β obtained as a result of the adjustment by the adjustment part 123.SELECTED DRAWING: Figure 1
【課題】車両に搭載される電池の充電率を表示部に表示させる場合において、ユーザの利便性を向上させる。【解決手段】電池Bの電圧または電池Bに流れる電流を用いて、電池Bの充電率αを推定する第1の推定部121と、第1の推定部121により推定される充電率αと電池Bの真の充電率との推定誤差を推定する第2の推定部122と、第2の推定部122により推定される推定誤差に基づいて補正量を推定し、その補正量を用いて第1の推定部121により推定される充電率αを調整する調整部123と、調整部123により調整される充電率βを表示部6に表示させる表示制御部124とを備えて充電率表示装置1を構成する。【選択図】図1
CHARGE RATE DISPLAY DEVICE
充電率表示装置
2021-03-01
Patent
Electronic Resource
Japanese
IPC: | 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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