A control apparatus for controlling a shift operation sets an output Mout from a reference model M, which is ideally changed, as a target slip amount of a feedback controller Cpi. Methods of operating an engine employing the lubricating oil composition are also provided. Data that is stored in memory provides at least one predetermined set of characteristic values of the proximity sensor output signal versus distance between the rotatable member and the drive member, where the at least one characteristic value of the proximity sensor output signal is indicative of engagement between the rotatable member and the drive member. A threshold comparison circuit is included for converting the transient signal received into a first and second digital waveform; the first digital waveform represents cycle crossings of the transient signal associated with a first threshold value, and the second digital waveform represents cycle crossings of the transient signal associated with a second threshold value. The cured formulation can have a Tg above 150\xb0 C. The bogie includes a set of end supports and stops arranged on the casing of the motor and on the weight-bearing crosspiece.