Speed change controller for automatic transmission

Abstract

Abstract PURPOSE:To reduce the speed change shock by starting the speed change of the first transmission in precedence to the speed change of the second transmission and terminating the speed change of the both transmissions at a same time. CONSTITUTION:The speed change starting instruction (square mark) of the first transmission is outputted in precedence to the speed-change starting instruction ( ) of the second transmission, and control is performed so that the speed change completion time of the both transmissions is made equal. Therefore, even if the first and the second transmissions are shifted in the reverse directions each other, the shift-up and -down feeling can be maintained favorably, and the strange drive feeling such as the down-shift after up-shift or the up-shift after down-shift is not generated.

Inventors

• 👤 Koji Taniguchi
• 👤 浩司 谷口
• 👤 Kunihiro Iwatsuki
• 👤 邦裕 岩月
• 👤 Yoshio Shindo
• 👤 新藤　義雄

Bibliographic Details