| 摘要 |
Herein disclosed is a range determination apparatus of a vehicle which can prevent a shift range from being undefined in the speed change states of an automatic transmission with no manual valve. The range determination apparatus comprises a gear speed change mechanism having a plurality of planetary gears each transmitting an output torque of a drive source, and a plurality of friction engagement elements operative to have respective operation states changed between an engagement state and a disengagement state, and used for an automatic transmission realizing speed changes with a torque transmission path of the gear speed change mechanism changed by the operation states of the friction engagement elements, and a real shift range determination being carried out on the basis of the operation states of the friction engagement elements, wherein a T-ECU is operative to determine a current shift range based on the detection results obtained by oil pressure sensors and the operation patterns preliminarily memorized when the operation states of the friction engagement elements are not being changed.
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