| 摘要 |
In a property correcting system of an automatic transmission according to the present invention, a difference of revolutions between input revolutions Nin of a torque converter and turbine revolutions Nt is compared with target rotational difference DeltaN, and is increased/reduced by the feedback operation (S 6 and S 7 ). It is checked to see if the difference of revolutions is converged to the target rotational difference DeltaN (S 8 ). When a driving duty duty which is converged to the target rotational difference DeltaN is within a shipping determining standard, the value is stored (S 10 ). A differential value between the stored driving duties duty of the respective automatic transmissions and the reference value is written to a TCU, as the amount of correction of the respective automatic transmissions, thereby correcting the variation in properties of the individual automatic transmissions, starting from the initial shipping timing. A preferable shift quality is obtained without prompting the learning based on the actual driving.
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