| 摘要 |
PROBLEM TO BE SOLVED: To eliminate need for an expensive hydraulic actuator by decreasing rotation on an input side at a prescribed rate by torque reduction of a power source during an inertia phase in shifting-up. SOLUTION: When a S14 determines that preparation for starting an inertia phase is completed, this shift-up shock absorber retrieves an initial torque- reduction amount Td and performs retard control for delaying an engine ignition timing so that a S21 may realize the torque-reduction. Then an S22 retrieves a target input rotation dropping rate ΔNit, and if ΔNi<ΔNit, a S26 performs torque-reduction (retard) so that the engine torque Te may decrease by a fixed value ΔTe, or if ΔNi>=ΔNit, an S27 performs torque-increase (advance) so that the Te may increase by the value ΔTe, thus decreasing Ni at the target input rotation dropping rate ΔNit. Shift-up shock absorbing operation mentioned above terminates when an S23 determines that a retard returning start command is made, and normal ignition timing is restored at torque return speed ΔTb after retarding, which is obtained based on a map 24. |
