Figure 1 from Development of Power Train of Hybrid Power Excavator
To enhance the energy saving efficiency, this paper proposes an innovative electric hybrid hydraulic excavator, as shown in Fig. 1. The engine, electric motor/generator, invertor, battery, hydraulic pump, and planetary gear are installed in the powertrain of the excavator. The hydraulic motor and generator are installed in the return line of.
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Order Download Introduction During the excavator design, we need to consider several key factors, such as the special demand of the market, noise and emissions regulations, reducing costs while improving performance.
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Electric power train system is one of the energy saving technologies of excavator [3], [4], [5]. However, because of cost and reliability of batteries, the development of electric excavators is restricted.
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The structure of the HPTS in the excavator is given as Fig. 3.In this system, an engine and an electric machine are adopted to co-drive pumps. The system uses the electric machine of high efficiency to balance the load fluctuation by working in motor mode and generator mode, to stabilize the working points of the engine in the high efficiency area, and then to improve the overall efficiency of.
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The new 16-ton wheeled excavator and 30-ton crawler excavator feature an electric powertrain in place of the diesel engines typically used to power these machines. Included in the electric powertrain are several Danfoss components, including a permanent magnet motor from Danfoss' Editron division. A Danfoss controller is used to for control.
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The electric excavator's powertrain system โ provided by Danfoss Editron, a subsidiary of Danfoss Power Solutions โ eliminates the noisy, dirty diesel engine in the 323F and replaces it with a battery pack and electric motor to power the excavator's hydraulic system.
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Currently, there are several energy saving methods for HE and they mainly concentrate on the following three aspects: (1) improving the performance of working components; (2) reforming the hydraulic system; (3) ameliorating the situation of power matching between the diesel engine, the hydraulic system and the load.
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The main factor for low efficiency and high emissions of the traditional excavator is the low efficiency of the power train system. 1 Currently, the main method of improving the efficiency of the power train system is hybrid power train systems (HPTSs). 2 - 4 The HPTSs adopt two or more power sources to drive the load 5 - 7 and to make full use.
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This article reviews the state-of-art for the hybrid wheel loader and excavator, which focuses on powertrain configuration, energy storage devices, and energy management strategies. The basis of classification and characteristic of each powertrain configuration are described. Advantages and disadvantages of batteries, supercapacitors, hydraulic.
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An innovative powertrain is proposed for hybrid hydraulic excavator. โข A gear box is integrated to adjust torque and speed of power source. โข An online energy management strategy is proposed to improve the engine's efficiency. โข Proposed system offers improvements in energy saving and regeneration up to 5.86% and 48.2%. โข
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In a mini excavator, for example, the powertrain consists of a diesel engine which is hooked up to a set of hydraulic pumps. Together, they generate the critical gallons per minute (gpm) of hydraulic fluid that energize the undercarriage, cab swing, bucket curl, attachment operation and everything in between.
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This paper presents an innovative powertrain design and an energy regeneration system for hybrid hydraulic excavators to reduce energy consumption and emissions. The proposed system is designed to maximize engine efficiency and make full use of the energy gained from boom and arm retraction. The powertrain features an innovative design that incorporates a continuously variable transmission.
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To reduce the energy consumption and emission, an innovative powertrain and the energy management strategy are proposed for hydraulic excavator in this paper. The novel powertrain consists of the engine, motor/generator, planetary gear, gearbox, and variable hydraulic pump. The energy regeneration system is also applied on the system to regenerate the potential energy and charge the battery.