| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To estimate the battery liquid temperature of not receiving influence of a structure of a space provided with a battery and a traveling state of a vehicle, even when using a temperature detecting value of a temperature detecting part arranged in the vicinity of the battery. <P>SOLUTION: This battery liquid temperature estimating device 1 includes a battery liquid temperature estimating part 11 for estimating the liquid temperature of the battery based on a temperature sensor value and a temperature changing factor of a battery temperature sensor 2, and a vehicle speed sensor 3 for detecting a vehicle speed, and sets the temperature changing factor in this time processing time based on a comparing result of a battery liquid temperature estimating value estimated in the last time processing time by the battery liquid temperature estimating part 11 with the temperature sensor value detected in this time processing time by the battery temperature sensor 2, and the vehicle speed detected by the vehicle speed sensor 3. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
