| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oil level detection device which can accurately determine that an oil level decreases by accurately estimating a bubble fraction obtained from a changing temperature of oil depending on a change in an operation condition or an ambient environment of a vehicle. <P>SOLUTION: It is determined that the oil level in an oil pan 30 decreases on condition that a difference between a temperature of oil stored in the oil pan 30 and a temperature of oil ejected from an oil pump 32 is not lower than a determination value T. <P>COPYRIGHT: (C)2013,JPO&INPIT |
