Patent ID: 9221657
Filing Date: 2015-12-29
Classification: B60K,B66F,F16H

Abstract:
1. A forklift equipped with a variable displacement traveling hydraulic pump driven by an engine, a hydraulic motor that forms a closed circuit with the traveling hydraulic pump therebetween and is driven by hydraulic oil discharged from the traveling hydraulic pump, and driving wheels driven by the hydraulic motor, the forklift comprising: an accelerator operation unit configured to perform operation for increasing or decreasing an amount of fuel supplied to the engine; an accelerator opening sensor configured to detect an accelerator opening that is an operation amount of the accelerator operation unit; and a control device configured to calculate a target maximum absorption torque or a target swash plate tilting angle of the traveling hydraulic pump based on the accelerator opening detected by the accelerator opening sensor to control the traveling hydraulic pump, wherein the control device includes the modulation control unit includes a modulation calculation unit configured to calculate the corrected accelerator opening by correcting the accelerator opening detected by the accelerator opening sensor, using a greater value of a first setting value calculated by applying the accelerator opening detected by the accelerator opening sensor to the table, and a second setting value calculated by applying the corrected accelerator opening calculated at a timing before calculation of the first setting value to the table.