| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a neutral controller for automatic transmission for vehicle capable of suppressing fluctuation of engine rotation speed when neutral control is started. SOLUTION: In a neutral controller for automatic transmission provided with an automatic transmission transmitting a driving force from an engine to a drive wheel and a main control part 1 controlling the operation of the engine and the automatic transmission, a neutral control means 1a neutral- controlling the automatic transmission under a predetermined condition, an ISC control means 1c controlling an idle rotation speed of the engine by adjusting a flow rate of air so that it becomes a predetermined target value, and a neutral control permission means 1b permitting the start of neutral control for the neutral control means 1a in accordance with rotation speed of the engine are provided in the main control part 1. The neutral control permission means 1b is provided with a rotation speed judging function permitting neutral control when rotation speed of the engine drops below a predetermined value in the vicinity of the target value.</p> |
