Controller in oil pressure operational speed change gear for vehicle

Abstract

Abstract PURPOSE: To minimize shocks due to speed changes by modifying a buffer material installed between an oil pressure motor and a shift valve in the direction of making buffer action on the low oil pressure side in a settled high opening range of throttle opening. CONSTITUTION: Accumulators 18-1, 18-2 are connected to fourth, fifth oil passages 11-4, 11-5 formed between oil pressure motor 3a-2, 3a-3 for oil pressure cluthes 3-2, 3-3 and shift valves 13-1, 13-2. Control pressure works from a throttle material 19 through a twelfth oil passage 11-12 on the dorsal sides of pistons 18a-1, 18a-2. And, in the high opening range of throttle opening by which the throttle control pressure dorps, buffer action range is modified to the low pressure side. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Sadanori Nishimura
• 👤 Masakazu Maezono

Bibliographic Details