| 摘要 |
PURPOSE:To avoid a busy shift of an automatic transmission operation and to improve the speed change shock in a manual speed change by setting two speed change stage lines to make the difference of speed change ratio between speed change stages in the second speed change stage line smaller than that in the first speed change stage line. CONSTITUTION:An automatic transmission controller 12 to output speed change signals responding to the running condition in an automatic transmission mode, a speed change stage selector 13a to output the up and down shift signals by operating a shift lever 13 in a manual mode, and a manual transmission controller 14 to select the speed change stage and output a speed change signal are provided. And a hydraulic pressure control device 10 to feed and exhaust the hydraulic pressure to an engaging means to set the speed change stage directed by the output signals from the automatic and manual transmission controllers 12 and 14 is provided, and the speed change stage lines are set to make the difference of speed change ratio between stages in the second speed change stage line smaller than that in the first speed change stage line. |
