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Automobile crane and engine cylinder deactivation control method and device thereof

A technology for truck cranes and control methods, which is applied in the direction of engine control, machine/engine, mechanical equipment, etc., and can solve problems affecting the safety of truck cranes, engine instability, and system stability, so as to avoid instability , Improve stability and safety, and improve operability

Active Publication Date: 2015-09-09
WEICHAI POWER CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above multi-state control system requires more complex control strategies and more sensors and actuators, which makes the system complex and costly, thus affecting the stability of the system
[0008] In addition, since the working state of the truck crane is determined according to the load and speed of the vehicle, it is easy to make mistakes in judgment. For example, it should be in the driving condition, but it is switched to the working condition, so that the engine stops the cylinder when it should not be stopped, resulting in Unstable engine operation affects the safety of truck crane work

Method used

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  • Automobile crane and engine cylinder deactivation control method and device thereof
  • Automobile crane and engine cylinder deactivation control method and device thereof

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Embodiment Construction

[0034] The core of the present invention is to provide an engine cylinder deactivation control method, which can control the switching of the engine working mode according to the actual working state of the truck crane, and improve the working stability and safety of the truck crane.

[0035] Another core of the present invention is to provide an engine cylinder deactivation control device and a truck crane using the control device.

[0036] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] For ease of understanding and concise description, the following description will be made in conjunction with the engine cylinder deactivation control method and device, and the beneficial effects will not be discussed repeatedly.

[0038] Please refer to figure 1 and figure 2 , figure 1 It ...

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Abstract

The invention discloses an engine cylinder deactivation control method for a single-shock type automobile crane. The engine cylinder deactivation control method comprises the steps of artificially sending a signal corresponding to a current working state of the automobile crane and switching an engine to be in a working mode corresponding to the current working state of the automobile crane according to the artificially sent signal. The current working state of the automobile crane is artificially judged and the signal is sent by means of the control method, so that the accuracy is high, mistaken judgment caused by working state judgment according to operating parameters in the prior art is avoided, instability, caused by mistaken judgment switching, of the working mode of the engine is avoided, and the working safety of the automobile crane can be improved. In addition, the invention further discloses an engine cylinder deactivation control device and an automobile crane provided with the control device.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a truck crane and a method and device for controlling deactivation of engine cylinders thereof. Background technique [0002] As a common construction machinery, truck cranes are powered by engines in both driving and working conditions. Truck cranes are divided into two types: single-type truck cranes and double-type truck cranes. [0003] For the double-engine truck crane, since the driving and working conditions are handled by one engine, the corresponding engine can be calibrated according to different working conditions, so that the engine outputs a power characteristic curve corresponding to the working condition to ensure fuel economy. [0004] However, for a single-type truck crane, one engine is responsible for both driving and working conditions. Since the load rate of the working condition is about 40% of the load rate of the driving condition, after the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D17/02F02D29/02
Inventor 李东海孙钢雷保军李艳龙
Owner WEICHAI POWER CO LTD
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