Patent ID: 7970522

Claim:
A gear shifting control system for a work machine which travels by transmitting the power of an engine to wheels through a torque converter and a transmission, the gear shifting control system comprising: automatic gear shifting control means having an automatic gear shifting mode in which the gear ratio in the transmission is changed based on a preset threshold value of gear shifting control thereby to perform gear shifting of the transmission; and learning correction means for learning desired gear shifting conditions in response to an operator intervention while the work machine travels, and correcting the gear shifting control threshold value so as to obtain the desired gear shifting conditions, wherein said learning correction means includes: first operating means operated by an operator; first display means for displaying a permissible gear shifting condition setting range; second display means for displaying a guidance which indicates whether a current traveling condition falls within the permissible gear shifting condition setting range displayed in said first display means so that a gear shifting condition setting is possible under the current traveling condition; gear shifting condition acquisition permission means for permitting gear shifting conditions to be acquired only when the gear shifting conditions prevailing when the first operating means is operated fall within said permissible gear shifting condition setting range displayed in said first display means; gear shifting condition acquisition means for acquiring the gear shifting conditions when said gear shifting condition acquisition permission means permits the acquisition thereof and storing a value for acquiring the gear shifting conditions; and third display means for displaying a guidance which indicates that the setting of gear shifting conditions is completed when said gear shifting condition acquisition means completes storing of the value for acquiring the gear shifting conditions; and wherein said automatic gear shifting control means includes first threshold value setup means for setting said gear shifting control threshold value by using the value stored in the gear shifting condition acquisition means.