Multistage automatic speed control device

Abstract

Abstract PURPOSE:To synchronize the speed change operations of both main and auxiliary speed change units, by controlling specified frictional components in accordance with signals from rotational speed sensors attached to specified components disposed in the main and auxiliary speed change units. CONSTITUTION:Rotational speed sensors A2, A1 are attached to specified components in at lease one of auxiliary and main speed change units. Further, there is arranged a B0 release control valve 66 for controlling the release pressure of an O/D brake B0, which is controlled by means of a solenoid SD in accordance with a signal from a control section E which receives signals from the rotational speed sensors A2, A2 so that a down-shift operation of the auxiliary speed change device due to the release of the O/D brake B0, synchronizes with a shift-up operation of the main speed change device due to engagement of the brake.

Inventors

• 👤 Koji Sumiya
• 👤 角谷　孝二
• 👤 Yoshikazu Sakaguchi
• 👤 坂口　吉一
• 👤 Takuji Taniguchi
• 👤 谷口　卓司
• 👤 Yutaka Taga
• 👤 豊 多賀
• 👤 Yoshio Shindo
• 👤 新藤　義雄

Bibliographic Details