Shift control device of automatic transmission
AssigneeMazda Motor Corporation
InventorItsuo Hyakutake
Life of this patent
Estimating the term…
Abstract
A control device, in which a shift-up control is automatically executed when an engine's over revolution with a turbine speed for a shift gear set by a manual shift mode exceeding a preset limit speed A is executed, is configured such that a controller detects an engine's over revolution (Yes in step s2), and cancels the shift-up control (step s8) when detecting a closing change of an accelerator opening by a specified angle (Yes in step s5) during a period of time from an output timing of a shift-up command (step s4) to specified timing of an inertia phase start I (Yes in step s6).
Claims12
A shift control device of an automatic transmission which is equipped with a manual shift mode, in which a gear shift is executed based on a signal of a manual operation, comprising:
- a shift-up control means for executing a shift-up control, in which a gear selected by the manual shift mode is automatically shifted up to a higher-speed gear when an engine speed exceeds a specified engine speed;
- an accelerator-opening change detecting means for detecting a closing change of an accelerator opening by a specified angle during a period of time from an output timing of a shift-up command when the engine speed exceeds the specified engine speed to specified timing when a shift-process degree of the shift-up control by said shift-up control means reaches a specified process degree;
- and
- a shift-up control canceling means for canceling the shift-up control by said shift-up control means when the specified-angle closing change of the accelerator opening is detected by said accelerator-opening change detecting means.
A shift control device of an automatic transmission which is equipped with a manual shift mode, in which a gear shift is executed based on a signal of a manual operation, comprising:
- a shift-up control means for executing a shift-up control, in which a gear selected by the manual shift mode is automatically shifted up to a higher-speed gear when an engine speed exceeds a specified engine speed;
- an accelerator-opening change detecting means for detecting a closing change of an accelerator opening by a specified angle during a period of time from an output timing of a shift-up command when the engine speed exceeds the specified engine speed to specified timing when a specified period of time has passed from the shift-up command;
- and
- a shift-up control canceling means for canceling the shift-up control by said shift-up control means when the specified-angle closing change of the accelerator opening is detected by said accelerator-opening change detecting means.
A shift control device of an automatic transmission which is equipped with a manual shift mode, in which a gear shift is executed based on a signal of a manual operation,
- wherein a shift-up control is executed such that a gear selected by said manual shift mode is automatically shifted up to a higher-speed gear when it is detected that an engine speed exceeds a specified engine speed, and
- said shift-up control is cancelled when a closing change of an accelerator opening by a specified angle is detected during a period of time from an output timing of a shift-up command when it is detected that the engine speed exceeds the specified engine speed to specified timing when a shift-process degree of said shift-up control reaches a specified process degree.
Dependencies are inferred from the claim text.