Work vehicle having a controller that controls the hydraulic cylinders and the electrically driven motor on a basis of a distribution ratio of a first torque and a distribution ratio of a second torque

A work vehicle comprising:

• an engine that is mounted on a vehicle body;
• a hydraulic pump that is driven by the engine;
• hydraulic cylinders that are extended and contracted by pressurized fluid delivered from the hydraulic pump;
• a work device that is moved according to the extension/contraction operations of the hydraulic cylinders;
• a travel device that is driven independently of the work device;
• an electrically driven motor that is driven by electric power generated by the engine to operate the travel device;
• and
• a controller that controls the hydraulic cylinders and the electrically driven motor on a basis of a distribution ratio of a first torque and a distribution ratio of a second torque, the first torque being consumed by the work device among torques output by the engine, the second torque being consumed by the travel device among torques output by the engine, wherein
• the controller is configured to:
• calculate a reaction force received by the vehicle body when the work vehicle penetrates into an excavation target on a basis of a traction force and a vehicle velocity of the vehicle body;
• determine the distribution ratio of the first torque and the distribution ratio of the second torque such that as the calculated reaction force received by the vehicle body becomes larger, the first torque becomes smaller, the second torque becomes larger, and a ratio of an increase in the distribution ratio of the second torque to an increase in the reaction force received by the vehicle body becomes smaller, while the work vehicle is performing excavation work;
• and
• control output power of the hydraulic pump and output power of the electrically driven motor on the basis of the determined distribution ratio of the first torque and the determined distribution ratio of the second torque.