Title:
ENGINE OIL QUANTITY ESTIMATING DEVICE, AND ENGINE OIL QUANTITY ESTIMATING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/189638
Kind Code:
A1
Abstract:
Provided are an engine oil quantity estimating device and an engine oil quantity estimating method capable of accurately estimating a quantity of engine oil. This engine oil quantity estimating device is provided with: a temperature acquiring unit for acquiring the temperature of engine oil collected in an oil pan of an internal combustion engine; a calculating unit for calculating the rate of decrease in the temperature after the internal combustion engine has stopped, on the basis of the acquired temperature of the engine oil; and an estimating unit for estimating the quantity of engine oil on the basis of the calculated rate of decrease in temperature. The engine oil quantity estimating method includes: acquiring the temperature of engine oil collected in an oil pan of an internal combustion engine; calculating the rate of decrease in the temperature after the internal combustion engine has stopped, on the basis of the acquired temperature of the engine oil; and estimating the quantity of engine oil on the basis of the calculated rate of decrease in temperature.
Inventors:
SHIRAO SHIN (JP)
MURASAWA NAOTO (JP)
MURASAWA NAOTO (JP)
Application Number:
PCT/JP2020/011523
Publication Date:
September 24, 2020
Filing Date:
March 16, 2020
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F01M11/12
Foreign References:
| JP2016153627A | 2016-08-25 | |||
| JP2008057476A | 2008-03-13 | |||
| JPS6293416A | 1987-04-28 | |||
| JP2017155679A | 2017-09-07 | |||
| JP2007332883A | 2007-12-27 | |||
| JP2004037303A | 2004-02-05 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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