Engine speed control method, system and crane

A technology of engine speed and control method, which is applied in the direction of engine control, machine/engine, mechanical equipment, etc. It can solve the problems that high-power engines cannot be used, and cannot meet the needs of engine control of wheeled cranes, etc., so as to avoid the influence of speed , the effect of saving fuel

Active Publication Date: 2019-03-19
XUZHOU HEAVY MASCH CO LTD
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Problems solved by technology

The existing technology is not suitable for high-power engines,

Method used

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  • Engine speed control method, system and crane
  • Engine speed control method, system and crane
  • Engine speed control method, system and crane

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[0023] The present invention will be described more fully below with reference to the accompanying drawings, in which exemplary embodiments of the present invention are illustrated. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention. The technical solutions of the present invention will be described in various aspects in combination with various figures and embodiments.

[0024] figure 1 A flowchart of an embodiment of the method for controlling engine speed according to the present invention is a...

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Abstract

The invention discloses a control method and system for the rotation speed of an engine and a crane. The control method comprises the steps that an operation signal of an aboard handle and the work state of the crane are collected; the running mode of the engine is determined according to the operation signal and the work state; when the running mode is a standby mode, the rotation speed of the engine is controlled at a preset rotation speed constantly; and when the running mode is a work mode, the rotation speed of the engine is controlled according to an operation signal of an accelerator of the engine. According to the control method and system for the rotation speed of engine and the crane, the operation of the engine is divided into two modes during an aboard operation, so that the requirements for the rotation speed of the engine required by certain working conditions of a wheeled crane are lowered, and the rotation speed of the engine is limited, and accordingly the purpose of saving fuel oil is achieved. In addition, when the mode is changed, the rotation speed is released in a section-dividing mode, so that the influence on the rotation speed due to mode switching is avoided.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a method and system for controlling engine speed and a crane. Background technique [0002] With the rapid development of industrial technology worldwide, the problems of energy shortage and environmental pollution are becoming more and more serious, and energy saving has also become the technical research and development direction of construction machinery products with high fuel consumption. The engine power of wheeled cranes is much larger than that of traditional vehicles, and when they are on the vehicle, they are often in standby mode. If the engine is continuously operated at a certain power output at this time, it will cause fuel waste. However, because it is a high-power engine, if the vehicle is turned off and then restarted, it will take a long time to stabilize, and the start-up is relatively large in terms of battery power and engine fuel consumption, a...

Claims

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Application Information

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IPC IPC(8): F02D29/02
Inventor 肖云博张鑫刘艳昭王帅
Owner XUZHOU HEAVY MASCH CO LTD
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