To improve the comfortableness by suppressing the shock in chip-in acceleration regardless of a knocking measure and to improve the deterioration of fuel consumption or traveling performance while suppressing the generation of muffled sound.
When the delay control of ignition timing of an engine 12 is performed by a knocking counter measure means 104 when an accelerator operation is performed from idling traveling in the engagement of a lock-up clutch 26, an annealing treatment is not properly performed by an annealing treatment means 106. Therefore, the lock-up clutch 26 is released to prevent the shock. When the engine speed is raised by the accelerator operation, in the engagement of the lock-up clutch 26, and gets in a muffle sound generating area, the lock-up clutch 26 is released, a continuously variable transmission 18 is changed in speed so that the turbine rotating speed gets out of the muffled sound generating area, and the lock-up clutch 26 is then re-engaged to extend the engagement area of the lock-up clutch 26.
WO/2015/093240 | WORK VEHICLE, AND METHOD OF CONTROLLING WORK VEHICLE |
JPS58174023 | AUTOMATIC OPEPATING DEVICE FOR GEAR TRANSMISSION |
JP4100444 | Hybrid drive |
HANEBUCHI RYOJI