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AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHiroshi Ito, Hideki Yasue, Daisuke Inoue, Hiromichi Kimura
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A control system for an automatic transmission which includes a first speed change unit for executing a predetermined speed change by applying/releasing two of a plurality of frictional engagement elements simultaneously and a second speed change unit capable of executing speed changes in at least two higher and lower stages are connected in tandem. The control system comprises: a speed change abnormality detector for detecting an abnormality in the speed change which is executed by applying/releasing the two frictional engagement elements of the first speed change unit simultaneously; and a first speed change unit speed change inhibitor for inhibiting the speed change, which is executed by applying/releasing the two frictional engagement elements in the first speed change unit, when the speed change abnormality is detected by the speed change abnormality detector.
A control system for an automatic transmission which includes a first speed change unit for executing a predetermined speed change by applying/releasing two of a plurality of independently engagable frictional engagement elements simultaneously and a second speed change unit capable of executing speed changes in at least two higher and lower stages are connected in tandem, comprising:
Dependencies are inferred from the claim text.