CONTROL DEVICE OF AUTOMATIC TRANSMISSION

PROBLEM TO BE SOLVED: To improve shift feeling in manual control of a transmission by arranging a transmission gear ratio changing amount changing means for reducing a changing amount of the transmission gear ratio when the transmission is shifted down by operation of an operating means smaller than...

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Bibliographische Detailangaben
1. Verfasser:	NOBEMOTO HIDETOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CORRECTION OF TYPOGRAPHICAL ERRORS ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LIGHTING LINING MACHINES MECHANICAL ENGINEERING PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL TRANSPORTING TYPEWRITERS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve shift feeling in manual control of a transmission by arranging a transmission gear ratio changing amount changing means for reducing a changing amount of the transmission gear ratio when the transmission is shifted down by operation of an operating means smaller than the change rate of the transmission gear ratio when the transmission is shifted up. SOLUTION: In a device formed in such a constitution that a transmission gear ratio is changed by a shift control means 115 following with the operation operating means 111, 112 when an automatic transmission 12 is changed from an automatic shift mode to a manual shift mode, a transmission gear ratio change rate changing means 116 is arranged to reduce the change rate of the transmission gear ratio when the transmission 12 is shifted down smaller than the change rate of the transmission gear ratio when the transmission 12 is shifted up. The change rate of the transmission gear rate is reduced relatively at the time of shift-down, the transmission gear ratio is switched to an increasing side by shift-down operation slightly, and the condition of an engine brake is regulated delicately. On the other hand, the change rate of the transmission gear ratio is increased relatively at the time of shift-up, and the reducing change of the transmission gear ratio accompanying shift operation is made to feel to a driver.