Lock-up type automatic speed change gear

Abstract

Abstract PURPOSE:To prevent idling of an engine and the generation of a speed change shock by matching a lock-up interruption time with a speed change operation time even under any kind of speed change and engine load. CONSTITUTION:There are provided 1 2 speed change detection circuits 207a- 207c, 1 2 speed change detection circuits 208a-208c, 2 3 speed change detection circuits 218a-218c and 2 3 speed change detection circuits 219a-219c. These speed change detection circuits are properly used depending upon the kind of a speed change command and the size of engine load. The output time of a speed change signal (lock-up interruption signal) from these circuits is individually adjusted in such a manner as to correspond to speed change operation times varying depending upon the kind of a speed change command and the size of engine load by adjusting time constant of RC circuit in each speed change detection circuit. Thus, idling of an engine or the generation of a speed change shock can be prevented.

Inventors

• 👤 Masaaki Suga
• 👤 雅明 菅
• 👤 Yoshiro Morimoto
• 👤 守本　佳郎
• 👤 Hideo Hamada
• 👤 浜田　ひで夫
• 👤 Masaaki Futaki
• 👤 二木　正明
• 👤 Sunao Suzuki
• 👤 直 鈴木

Bibliographic Details