Patent ID: 8645018
Filing Date: 2014-02-04
Classification: F16H

Abstract:
1. A method of determining an oil change timing of an automatic transmission, the method which comprises: tracing and storing oil change-related information serving as a basis for an oil change from a time point when a new car is purchased or an oil of an automatic transmission was previously changed; determining an average value of a turbine output with respect to an engine output among the stored oil change related information is less than a preset reference value for change, if a specific event of determining an oil change of the automatic transmission occurs; determining whether an average value of an oil temperature with respect to a travel time among the stored oil change-related information is more than at least one preset reference value for oil temperature, if the average value of a turbine output with respect to an engine output is less than the preset reference value for change; deducting a preset recommended travel distance corresponding to the average value of an oil temperature with respect to a travel time, if the average value of an oil temperature with respect to a travel time is more than the at least one preset reference value for oil temperature; and determining that the current time is an oil change timing of the automatic transmission and informing a driver of an oil change signal for the automatic transmission, if the travel distance among the stored oil change related information is more than the deducted recommended travel distance.