Idle-speed control method and device for excavator as well as control equipment

Abstract

The invention provides an idle-speed control method and device for an excavator as well as control equipment, which relate to the technical field of idle-speed control, and are applied to a controllerof the excavator. The method comprises the following steps: reducing working rotation speed of the excavator to be first-stage idle-speed rotation speed if the excavator is monitored to meet to preset speed reduction conditions which include not receiving an excavator start-up instruction within first preset time length, receiving a start-up instruction of an automatic idle-speed mode and monitoring that the excavator does not change a gear within the first preset time length; if the idle-speed instruction issued by a user is received, reducing the first-stage idle-speed rotation speed to besecond-stage idle-speed rotation speed; and increasing the second-stage idle-speed rotation speed to be working rotation speed if the excavator is monitored to meet preset speed increase conditions which include receiving a speed increase instruction, monitoring that the excavator changes the gear, receiving a cancel instruction of the automatic idle-speed mode of the excavator and receiving the excavator start-up instruction. The idle-speed control method can effectively reduce an excavator action blocking phenomenon, and reduces oil consumption.

Description

technical field [0001] The invention relates to the technical field of idle speed control, in particular to an excavator idle speed control method, device and control equipment. Background technique [0002] At present, excavators are widely used in infrastructure construction and emergency rescue and disaster relief, and are indispensable and important equipment for engineering construction. Excavators generally use diesel engines as power sources, but they need to consume a certain amount of fuel. The fuel consumption of excavators mainly includes working fuel consumption and non-working fuel consumption. In the prior art, in order to reduce non-working fuel consumption, the engine speed is usually reduced to enter the idling state to reduce fuel consumption. However, since the engine speeds up from idling to the target speed set for work, the speed-up time is too long, and the excavator controls the pump. The response of the solenoid valve still maintains a normal worki...

AI Technical Summary

Problems solved by technology

In the prior art, in order to reduce non-working fuel consumption, the engine speed is usually reduced to enter the idling state to reduce fuel consumption. However, since the engine speeds up from idling to the target speed set for work, the speed-up time is too long, and the excavator controls the pump. The response of the solenoid valve still maintains a normal working state, and the change of the engine speed cannot keep up with the change speed of the solenoid valve, causing the excavator to freeze. In order to avoid the phenomenon of the excavator moving without reducing the engine speed, it will cause high fuel consumption. The problem

Images