A comprehensive overview of hybrid construction machinery

Abstract

With the increasing attention of energy saving and emission reduction technology, the recent application of hybrid powertrain technology affects the development of construction machinery industry. This article reviews these publications and provides comprehensive references. 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 accumulators, and flywheel used in hybrid construction machinery are summarized. The existing energy management strategies for hybrid construction machinery are also elaborated. The technological challenges and developing trends in the near future for hybrid construction machinery are discussed.

Optimal Design of a Novel Hybrid Electric Powertrain for Tracked Vehicles

“…It can easily be seen that the first two situations in Figure 5 cannot ensure the speed range of outputs. The last four situations can satisfy the output speed range in Equation (4).…”

“…Until now, the series hybrid has been commercialized and researched widely for TTDs. Apart from the D7E, Komatsu, and Kobelco, many other companies also developed series hybrid TTDs [4]. Research has also been done on series hybrid tracked vehicles [5].…”

Multi-parameter integrated experimental analysis of wall compaction effect on Semi-automatic plastering machine

“…1, the plastering device makes the vertical motion on the cylindrical guide rail after the wall plastering machine and the plastering device from bottom to top positioning. When the plastering device moving down, the mortar will be plastered up the wall (this is the most major characteristic of this wall plastering machine: mortar will not fall from the top of the wall [1,5]), the upward movement will be the idle stroke. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits distribution, and reproduction in any medium, provided the original work is properly cited.…”

“…According to the average level of technology workers of the construction market in recent years, the perpendicularity and flatness and compactness of the plaster have improved with the help of tools, but deviation is larger. The wall plastering machine had been designed [1,2] (device as shown in Fig. 1) and solved the problem.…”

Research on Optimized Torque‐Distribution Control Method for Front/Rear Axle Electric Wheel Loader

“…It is considered to be the trend of future in the loader field [1][2][3]. Here are some released hybrid loader prototypes of several manufacturers, as shown in Table 1.…”