发明申请
- 专利标题： SECONDARY BATTERY TEMPERATURE-ESTIMATING APPARATUS AND METHOD
- 专利标题（中）： 二次电池温度估算装置及方法
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申请号： US13382736申请日： 2010-07-07
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公开(公告)号： US20120099618A1公开(公告)日： 2012-04-26
- 发明人: Yuji Nishi , Hidenori Takahashi , Masatoshi Tazawa , Masanobu Matsusaka , Keiji Kaita
- 申请人： Yuji Nishi , Hidenori Takahashi , Masatoshi Tazawa , Masanobu Matsusaka , Keiji Kaita
- 申请人地址： JP Toyota-shi, Aichi-ken
- 专利权人： TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人： TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人地址： JP Toyota-shi, Aichi-ken
- 优先权： JP2009-161923 20090708
- 国际申请： PCT/IB10/01668 WO 20100707
- 主分类号： G01K13/00
- IPC分类号： G01K13/00
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.
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