US 9,810,316 B2
Control apparatus and control method for automatic transmission
Hiroshi Natsume, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken (JP)
Filed on Oct. 11, 2016, as Appl. No. 15/290,390.
Claims priority of application No. 2015-204053 (JP), filed on Oct. 15, 2015.
Prior Publication US 2017/0108117 A1, Apr. 20, 2017
Int. Cl. F16H 61/02 (2006.01); F16H 59/44 (2006.01); F16H 3/66 (2006.01)
CPC F16H 61/0204 (2013.01) [F16H 59/44 (2013.01); F16H 61/0213 (2013.01); B60Y 2300/184 (2013.01); F16H 3/663 (2013.01); F16H 3/666 (2013.01); F16H 2061/0234 (2013.01); F16H 2200/006 (2013.01); F16H 2200/2007 (2013.01); F16H 2200/2023 (2013.01); F16H 2200/2046 (2013.01); F16H 2200/2066 (2013.01); F16H 2200/2082 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A control apparatus for an automatic transmission with which a vehicle is equipped, comprising:
an acceleration requirement determination unit configured to determine whether or not a drive requirement amount for the vehicle is larger than a predetermined requirement amount, and that determines whether an acceleration requirement is large or small, based on whether a change in the drive requirement amount is larger or smaller than a predetermined requirement amount change, when it is determined that the drive requirement amount is larger than the predetermined requirement amount; and
a shift control unit configured to form a gear stage that is lower in vehicle speed than a predetermined gear stage by one stage when the acceleration requirement determination unit determines that the acceleration requirement is large, and that forms a gear stage that is higher in vehicle speed than the predetermined gear stage by one stage when the acceleration requirement determination unit determines that the acceleration requirement is small, in a case where the shift control unit determines that a shift to the predetermined gear stage, at which a maximum load is applied to a predetermined rotary member of the automatic transmission in which a plurality of gear stages having different gear ratios are selectively formed, is to be performed.