Patent ID: 8447477

Claim:
An engine control device for a forklift, which is provided with a travel device driven by an engine and a working machine including an attachment driven and lifted by the engine, and which performs matching between an engine absorption torque and a load on an engine torque curve diagram having an engine speed axis and a torque axis by engine control, comprising: maximum torque curve setting means for setting in advance at least two maximum torque curves of different magnitudes of maximum torque values on the torque curve diagram, weight measuring means for measuring the weight of the attachment and a cargo loaded on the attachment, maximum torque curve selecting means for selecting a maximum torque curve having a smaller maximum torque value if the weight measured by the weight measuring means is smaller than a threshold value, and for selecting a maximum torque curve having a larger maximum torque value if the weight measured by the weight measuring means is not less than the threshold value, the threshold value being determined for selecting the at least two maximum torque curves for the weight measured by the weight measuring means, and engine control means for controlling the engine according to the maximum torque curve selected by the maximum torque curve selecting means.