Gear change control system for automatic transmissions
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsAtsushi Tabata, Hideo Tomomatsu, Shinji Kasuga, Hiroji Taniguchi
Life of this patent
Estimating the term…
Abstract
A control system for an automatic transmission including a range switching mechanism for switching a shift range by electric means. It is detected that the switching of the shift range has been instructed by the range switching mechanism. It is decided that a gear change will occur according to the instructed switching of the shift range. It is decided that the decided gear change can be executed. The range switching of the shift range is inhibited, when it is not decided that the gear change is allowed.
Claims6
A control system for an automatic transmission including a range switching mechanism for switching a shift range by electric means, wherein the switching of the shift range causes the transmission to instruct an immediate gear change for some running state conditions and not for other running state conditions, comprising:
- electric range switching instruction detecting means for detecting that the switching of the shift range has been instructed by said range switching mechanism;
- gear change deciding means for deciding that a gear change will occur according to the instructed switching of the shift range;
- gear change inhibition deciding means for deciding that the decided gear change is inhibited;
- and
- range switching canceling means for restricting the switching of the shift range until another instruction for switching the shift range is made by the range switching mechanism.
Dependencies are inferred from the claim text.