Hybrid construction machinery power control system, controller and control method
A power control system and construction machinery technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., to optimize the power system and prevent overcharging and overdischarging
Active Publication Date: 2014-10-29
SHANTUI CONSTR MASCH CO LTD
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Problems solved by technology
[0002] Hybrid power generally refers to the mixing of fuel and electric energy. At present, hybrid power has been successfully applied to automobiles and has achieved good energy-saving effects. However, there are no successful examples of applying hybrid power to construction machinery.
[0003] Hybrid vehicles mainly run on flat roads, while the operating conditions of construction machinery are complex, and their load conditions are significantly different from those of hybrid vehicles. The load of construction machinery changes drastically during work. Therefore, hybrid vehicles cannot Application of hybrid system control method of electric vehicle to hybrid construction machinery
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[0042] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0043] An embodiment of the present application provides a power control system for a hybrid construction machine, please refer to figure 1 , shows a schematic structural diagram of a power control system of a hybrid construction machine.
[0044] The power control system of the hybrid construction machinery mainly includes: engine 1, ge...
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The invention discloses a power control system, a power system controller and a control method for hybrid engineering machines. According to the power control system, the controller and the control method, the energy storage and discharging processes of an electricity storage unit and the operating state of an engine are controlled reasonably by collecting the busbar voltage of a rectifier, the voltage of the electricity storage unit and the rotate speed information of the engine to prevent the electricity storage unit from being overcharged and overdischarged and prevent the engine from changing oil injection quantity frequently, so that the effects of energy conservation and emission reduction of the engineering machines are achieved. In addition, the power system controller can control the charging and discharging processes of the electricity storage unit, so the power system for the integral hybrid engineering machines is optimized.
Description
technical field [0001] The present application relates to the technical field of hybrid engineering machinery, in particular to a hybrid engineering machinery power control system, controller and control method. Background technique [0002] Hybrid power generally refers to the mixing of fuel and electric energy. At present, hybrid power has been successfully applied to automobiles and has achieved good energy-saving effects. However, there is no successful example of applying hybrid power to construction machinery. [0003] Hybrid vehicles mainly run on flat roads, while the operating conditions of construction machinery are complex, and their load conditions are significantly different from those of hybrid vehicles. The load of construction machinery changes drastically during work. Therefore, hybrid vehicles cannot The control method of the hybrid power system of the electric vehicle is applied to the hybrid power engineering machinery. Contents of the invention [000...
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IPC IPC(8): B60W20/00B60W10/06B60W10/26B60W10/08B60W20/13B60W20/16
CPCY02T10/6286Y02T10/62
Inventor 赵勇周琳张西金樊新宇刘存波田从丰
Owner SHANTUI CONSTR MASCH CO LTD