Shift control apparatus for an automatic transmission

• Main Authors: INAGAKI NOBUAKI, TUTUI HIROSHI, DOI HIRONORI, TUKAMOTO YASUO
• Format: Patent
• Language: Chinese; English
• Published: 15.04.2009
• 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

There is provided a speed change control device for an automatic transmission, which is constituted such that, in case a reverse jumping speed change to return to a preceding gear is decided during a jumping speed change control, load deciding means (35) decides that a load on a frictional engagement element is within a permissible range, such that, on the basis of the decision result, multiplex control permitting means (37) permits the execution of a multiplex speed change control (32) for a reverse jumping speed change, and such that speed change control means (30) executes, when permitted by the multiplex control permitting means (37), the multiplex speed change control (32) for the reverse jumping speed change. On the other hand, the speed change control means (30) executes, when not permitted by the multiplex control permitting means (37), a reverse jumping bypass speed change control (34), and changes the speed once to an intermediate gear and then to a target gear. As a result,it is possible to make co