发明名称 |
Secondary battery temperature-estimating apparatus and method |
摘要 |
An alternating current impedance-estimating section (106) estimates an alternating current impedance (Rh) of the secondary battery based on electric current (I) and voltage (V) of the secondary battery detected when a ripple generating section causes a ripple current to flow in the secondary battery. A temperature estimating section (108) estimates the temperature (T) of the secondary battery based on the alternating current impedance (Rh) estimated by the alternating current impedance-estimating section (106) with the use of the relation, obtained in advance, between the temperature (T) of the secondary battery and the alternating current impedance (Rh) of the secondary battery at a ripple frequency. |
申请公布号 |
US8684596(B2) |
申请公布日期 |
2014.04.01 |
申请号 |
US201013382736 |
申请日期 |
2010.07.07 |
申请人 |
NISHI YUJI;TAKAHASHI HIDENORI;TAZAWA MASATOSHI;MATSUSAKA MASANOBU;KAITA KEIJI;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
NISHI YUJI;TAKAHASHI HIDENORI;TAZAWA MASATOSHI;MATSUSAKA MASANOBU;KAITA KEIJI |
分类号 |
G01K13/00;G01K1/00 |
主分类号 |
G01K13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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