Patent ID: 9399567
Filing Date: 2016-07-26
CPC Classification: B60K,B66F

Claim Text:
1. A traveling control device for an industrial vehicle, the industrial vehicle comprising an engine, a power transmitting mechanism for transmitting power of the engine to drive wheels, and a cargo handling device actuated by the power of the engine, the traveling control device comprising: a control unit that controls a maximum velocity of the vehicle by restricting a maximum speed of the engine; a vehicle velocity detecting unit that detects a vehicle velocity, wherein when the vehicle velocity detected by the vehicle velocity detecting unit is equal to or higher than a restriction triggering vehicle velocity obtained by subtracting a predetermined velocity from the maximum velocity, the control unit restricts the maximum speed of the engine; and a speed detecting unit that detects an actual speed of the engine, wherein when the maximum speed of the engine is restricted, the control unit compares the actual speed with a target restriction speed which is a maximum speed after restriction, and compares a first speed which is a higher speed among the target restriction speed and the actual speed, with a second speed which is a maximum speed of the engine in a non-load state, and changes the speed of the engine based on the lower speed among the first speed and the second speed.