US 6,295,884 B1Granted

Control method and control apparatus of gear transmission

AssigneeAisin Ai Co., Ltd.

InventorsTatsuhiro Miyake, Takeshige Miyazaki

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Abstract

An automatic speed-change control and an method speed-change control apparatus of an actuator which automatically drives a speed-change mechanism in a manual gear transmission of an automobile, includes an operating mechanism for controlling the operation of the actuators, a detecting mechanism for judging a speed-change timing and detecting the degree of accelerator depression, a calculating mechanism for calculating an operating factor corresponding to the degree of accelerator depression detected by the detecting mechanism to set a drive amount to the actuator so that the actuator operates by the calculated operate factor, and a command mechanism for supplying the drive amount to the actuator calculated by the calculating means and giving an operating command to the actuator.

Claims3

Dependent claims

A synchromesh-type transmission comprising a gear train for speed-change, a synchromesh mechanism for changing a combination of gears in the gear train, an actuator for actuating the synchromesh mechanism, and a control apparatus for controlling operation of the actuator, said control apparatus including:

judging means for judging a shifting of a shifting lever and for detecting an accelerator opened degree;
calculating means for calculating a shifting time of the actuator corresponding to the detected accelerator opened degree based on a predetermined map which sets forth a relationship between the accelerator opened degree and the shifting time of the actuator so that as the accelerator opened degree becomes smaller the shifting time becomes longer and so that as the accelerator opened degree becomes larger the shifting time becomes shorter;
command means for determining an operating speed of the actuator which will complete a speed-change within the calculated shifting time and for commanding the actuator based on the determined operating speed.

Dependencies are inferred from the claim text.

Facts

Application: 09/410,032Filed 1 Oct 1999
Priority: JP 10-30896729 Oct 1998
Granted: 2 Oct 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

F16H 61/0437
Smoothing ratio shift: by using electrical signals
F16H 61/2807
With at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted: using electric control…
F16H 59/18
Inputs being a function of torque or torque demand: dependent on the position of the accelerator pedal
F16H 59/24
Inputs being a function of torque or torque demand: dependent on the throttle opening

Family

No related US applications are recorded in the indexed filing history.

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