Speed change control method of automatic speed changer

Abstract

Abstract PURPOSE:To moderate a shock at speed change time, in a speed change period before an engager device completely becomes an engaged condition, by adjusting output torque of an engine and equalizing a rotary speed of an engine side to that of a driven wheel side. CONSTITUTION:In a speed change period, before an engager device, engaged after speed change, completely becomes an engaged condition, output torque of an engine is adjusted to control a rotary speed almost equal between engine and driven wheel sides of said engager device. In case of a shift up step 58 and shift down step 60 by a kick down, the output torque of the engine is decreased, while in case of a shift down step 63 not by the kick down but by deceleration, the output torque of the engine is increased to promptly increase a rotary speed of the engine. In this way, a shock at speed change time can be moderated to perform a smooth speed change.

Inventors

• 👤 Takashi Yonekawa
• 👤 米川　隆

Bibliographic Details