An Energy Management Strategy of Pure Electric Mini Hydraulic Excavator
Abstract. Pure Electric Mini Hydraulic Excavators (PEMHE), endowed with zero-emission, compactness, and quick dynamic properties, play an indispensable role in confined spaces
Based on these insights, a novel energy regeneration system for the swing drive of the hydraulic excavators is proposed. This system integrates an automatic switch control system, designed to optimize energy savings and enhance regeneration efficiency, along with an intelligent brake control system for precise tracking of the swivel angle.
In order to improve excavator energy eficiency, an electric excavator scheme using a hydraulic-electric dual-power drive boom system is proposed. A linear actuator, including electro-mechanical unit and hydraulic unit, was adopted in the boom system.
Chen et al. studied a variable speed pump control boom system in which hydraulic accumulator and supercapacitor are used to recover gravitational potential energy. The energy consumption of the system is reduced by 33.1% . Yoon et al. proposed an electric excavator system that each hydraulic actuator is driven by a closed pump control system.
According to related literatures, the energy eficiency of the excavator multi-way valve control system is only 30%. The shortage of low energy eficiency leads to high installed power, high cost and short endurance of excavator batteries, which seriously restricts the promotion and application of electric technology in excavators.
Abstract. Pure Electric Mini Hydraulic Excavators (PEMHE), endowed with zero-emission, compactness, and quick dynamic properties, play an indispensable role in confined spaces
Approach: reduce energy consumption while increasing the benefits Electric drives offer technologically advanced possibilities compared to purely hydrau-lic drives. In many applications, new or extended
EV Magazine has ranked the top electric loaders and excavators transforming construction, spotlighting machines that deliver powerful performance with zero emissions.
For existing traditional hydraulic excavators, High energy loss and energy is still too low. Regarding these issues, a new pure electro-hydraulic excavator potential energy recovery system is discussed
ABSTRACT In the existing electric excavators, the energy eficiency of the hydraulic system is less than 30% due to a large amount of throttling loss and waste of potential energy. In order to improve
A Novel Integrated Energy Management Strategy of Energy Storage System for a Pure Electric-Driven Mining Hydraulic Excavator May 2025 Chinese Journal of Mechanical Engineering 38 (1)
In order to improve the energy efficiency of hydraulic excavator, a pure electric drive excavator with energy recovery function for boom and arm is proposed. The hydraulic accumulator is
Therefore, this article presents a comprehensive review of these techniques, which include hydraulic accumulator-based energy regeneration systems, electric accumulator-based
Innovations in this field have resulted in the development of hybrid systems that combine the strong energy storage capabilities of batteries with the dynamic power delivery of hydraulic
Compared to pure electric-driven excavators without an ESS, the peak power of the grid for the developed excavators was reduced by 10%. This study designed an integrated energy
PDF version includes complete article with source references. Suitable for printing and offline reading.