₩18,450,000
판매 대리인 : 기율특허
전화번호 : 02-782-1004
메일주소 : kiyul@kiyul.co.kr
영문 원어 : The present invention relates to a depreciation modelling technology of a battery using a depreciation density function, and a controlling technology of a battery depreciation model. The depreciation modelling method of a battery is as follows: measuring an achievable cycle count (ACC) of a battery; using the measured ACC and a total amount of usage, according to a depth of discharge (DoD), which represents a degree of discharging of a rating capacity of a battery, to calculate an average wear cost (AWC) from a price of the battery; and transforming the calculated AWC into a function relating to the DoD by polynomial curve-fitting, to derive a depreciation density function representing a depreciation depending on a state of charge (SoC) of the battery. The technological objective of the present invention is to overcome a limit to obtaining a depreciation of a battery based on the SoC of the battery because a requirement of usages cannot be met after a complete charging of the battery, and to solve a problem of big error from a depreciation in a measured DoD because of an over-fitting, even though a depreciation function is derived.
출원번호 : 10-2016-0053009 (2016-04-29)
등록번호 : 10-1839994 (2018-03-13)
특허권자 : 서강대학교 산학협력단
요약 : 본 발명은 감가상각밀도 함수를 이용한 배터리의 감가상각 모델링 기술 및 배터리 감가상각 모델의 제어 기술에 관한 것으로, 배터리의 감가상각 모델링 방법은, 배터리의 한계수명(achievable cycle count, ACC)을 측정하고, 측정된 한계수명과 배터리의 정격용량의 방전 정도를 나타내는 방전심도(depth of discharge, DoD)에 따른 총 사용량을 이용하여 배터리의 가격으로부터 평균감가상각(average wear cost, AWC)을 산출하며, 산출된 평균감가상각을 다항 곡선접합하여 방전심도에 관한 함수로 변형함으로써 배터리의 충전 상태(state of charge, SoC)에 따른 감가상각을 나타내는 감가상각밀도 함수를 도출한다.
kr00001839994b1p
