Control Apparatus and Control Method for Automatic Transmission

Control Apparatus and Control Method for Automatic Transmission

The invention relates to a control apparatus and control method for automatic transmission. According to the invention, when throttle valve opening degree is larger than predetermined throttle valve opening degree Y in the case where a decision on shift to gear stage (X) at which maximum load is app...

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1. Verfasser: NATSUME, HIROSHI
Format: Patent
Sprache:chi ; eng
Schlagworte:
BLASTING
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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creator NATSUME, HIROSHI
description The invention relates to a control apparatus and control method for automatic transmission. According to the invention, when throttle valve opening degree is larger than predetermined throttle valve opening degree Y in the case where a decision on shift to gear stage (X) at which maximum load is applied to predetermined rotary member (such as a second rotary part RM 2) of automatic transmission (22) is made, the gear stage (X) is not formed. Therefore, large load is restrained from being applied to the predetermined rotary member of the automatic transmission (22). Besides, gear stage (X-1) that is lower in vehicle speed than the gear stage (X) by one stage or gear stage (X+1) that is higher in vehicle speed than the gear stage (X) by one stage is formed depending on whether acceleration requirement is large or small. Therefore, driving torque corresponding to the acceleration requirement is likely to be obtained. In consequence, the load applied to the predetermined rotary member of the automatic transmissio
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According to the invention, when throttle valve opening degree is larger than predetermined throttle valve opening degree Y in the case where a decision on shift to gear stage (X) at which maximum load is applied to predetermined rotary member (such as a second rotary part RM 2) of automatic transmission (22) is made, the gear stage (X) is not formed. Therefore, large load is restrained from being applied to the predetermined rotary member of the automatic transmission (22). Besides, gear stage (X-1) that is lower in vehicle speed than the gear stage (X) by one stage or gear stage (X+1) that is higher in vehicle speed than the gear stage (X) by one stage is formed depending on whether acceleration requirement is large or small. Therefore, driving torque corresponding to the acceleration requirement is likely to be obtained. 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subjects BLASTING
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
title Control Apparatus and Control Method for Automatic Transmission
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