| 摘要 |
PURPOSE:To prevent decrease of an engine rotation number to be less than a specified rotation number by shifting up at the time of the shifting up with engine traction control. CONSTITUTION:In a shift-up command process to shift up a transmission with engine traction control, a first time flag Fi is set from 0 to 1, the traction control is started, and on a low friction passage, when an automatic transmission is set at a first speed, with a transmission map set in a specified operation range of a first speed range (S81-S84: Yes), an engine rotation number Ne2u in the case of shifting up to a second speed is estimated (S85). Only when the engine rotation speed Ne2u is an engine stall guard rotation speed (1500rpm) or more (S86: Yes), a command signal for shifting up to the second speed is outputted, and the second speed is held for a specified time T1. |
