Hydraulic construction machinery multi-curve power matching energy-saving control system and method

A technology of hydraulic engineering machinery and energy-saving control system, which is applied in the direction of engine control, mechanical equipment, machine/engine, etc., can solve problems such as consumption, achieve timely matching of absorbed power, reduce unit fuel consumption rate, and realize energy-saving optimization.

Active Publication Date: 2020-01-21
CHTC JOVE HEAVY IND
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a multi-curve power matching energy-saving control system and method for hydraulic engineering machinery, aiming to solve the problem of consumption caused by the use of a set of characteristic power torque curves in existing engines

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  • Hydraulic construction machinery multi-curve power matching energy-saving control system and method

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0042]In addition, in th...

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Abstract

The invention discloses a multi-curve power-matching energy saving control system and method for a hydraulic engineering machine. The multi-curve power-matching energy saving control system and methodfor the hydraulic engineering machine comprises the following steps that S1, the matching relation of the load condition and working gear of an engine with external characteristic power torque curvesand speed regulation rates is set; S2, the matching relation, of the working mode and gear with the external characteristic power torque curves and the speed regulation rates, set in the step S1, corresponding parameters and operating parameters of a main pump are written into an external controller; S3, the external controller acquires a control signal; S4, the external controller conducts calculation; and S5, the external controller controls an engine controller and an electric proportional control valve. According to the multi-curve power-matching energy saving control system and method for the hydraulic engineering machine, multiple sets of external characteristic power torque curves and speed regulation rates are set to be matched with different load conditions so that multi-curve power torque output by an electric-control diesel engine can be matched with the absorption power of the hydraulic main pump in time, the energy utilization rate is increased, and unit fuel consumptionrate of whole hydraulic engineering machine is decreased.

Description

technical field [0001] The invention relates to the technical field of hydraulic engineering machinery, in particular to a multi-curve power matching energy-saving control system and method for hydraulic engineering machinery. Background technique [0002] At present, the main manufacturers of hydraulic engineering machinery all use a default external characteristic curve of diesel engines, adopt the default external characteristic power curve performance and fixed speed adjustment, and use the maximum absorbed power of the hydraulic main pump for power matching to meet hydraulic engineering requirements. The maximum operating capacity of the complete machine. However, in the actual construction process, hydraulic engineering machinery and equipment often have various working conditions such as heavy load, economical and light load. For economical and light load working conditions, the power absorbed by the hydraulic system will be reduced. The output power of the engine wi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D29/04
CPCF02D29/04F02D2250/18
Inventor 刘祥彪杨球李春雷刘健
Owner CHTC JOVE HEAVY IND
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