Patent ID: 8777808
Filing Date: 2014-07-15
Classification: E02F,F02D,F16H,Y10T

Abstract:
1. A working vehicle control apparatus, comprising: a rotational speed control device that controls a rotational speed of a motor in accordance with an operation amount of an accelerator pedal; a hydraulic pump that is driven by the motor to supply a driving pressure to a working actuator on which a reaction force in accordance with a travel driving force acts; a travel drive device that transmits rotation of the motor to wheels through a torque converter; a speed ratio detection device that detects a speed ratio of an input shaft and an output shaft of the torque converter; a load pressure detection device that detects a load pressure of the hydraulic pump; a selection device that selects one of a power mode and an economy mode; a determination device that determines whether or not a speed restriction condition in which a speed ratio detected by the speed ratio detection device is equal to or less than a predetermined value and a load pressure detected by the load pressure detection device is equal to or greater than a predetermined value has been established; an engine rotational speed restriction device that restricts a maximum rotational speed of the motor upon selection of the economy mode to a lower speed side than a maximum rotational speed of the motor upon selection of the power mode when it is determined by the determination that the speed restriction condition has been established; and a vehicle speed restriction device that restricts a maximum vehicle speed upon selection of the economy mode to a lower speed side than a maximum vehicle speed upon selection of the power mode when it is determined by the determination device that a speed restriction condition has not been established.