Bootstrap reservoir concepts for electro-hydraulic compact cylinder drBootstrap reservoir concepts for electro-hydraulic compact cylinder drivesives

Ketelsen, Søren; Kolks, Giacomo; Andersen, Torben Ole; Schmidt, Lasse; Weber, Jürgen

doi:10.25368/2020.109

Cited by 2 publications

(1 citation statement)

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“…Very large or long actuators are critical because the pendulum volume is large in these cases as well, and the accumulator size must be rapidly increased [10]. Therefore, c 2 is rated 4.…”

Section: Electro-hydraulic Actuatorsmentioning

confidence: 99%

Finding the Perfect Match: Different Heavy-Duty Mobile Applications Call for Different Actuators

Fassbender

Minav

2020

The 1st International Electronic Conference on Actuator Technology: Materials, Devices and Applications

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For the longest time, valve-controlled, centralized hydraulic systems have been the state-of-the-art technology to actuate heavy-duty mobile machine (HDMM) implements. Due to the typically low energy efficiency of those systems, a high number of promising, more-efficient actuator concepts has been proposed by academia as well as industry over the last decades as potential replacements for valve control-e.g. independent metering, displacement control, different types of electro-hydraulic actuators (EHAs), electro-mechanic actuators or hydraulic transformers. This paper takes a closer look on specific HDMM applications for these actuator concepts to figure out where which novel concept can be a better alternative to conventional actuator concepts, and where novel concepts might fail to improve. For this purpose, a novel evaluation algorithm for actuator-HDMM matches is developed based on problem aspects that can indicate an unsuitable actuator-HDMM match. To demonstrate the functionality of the match evaluation algorithm, four actuator concepts and four HDMM types are analysed and rated in order to form 16 potential actuator-HDMM matches that can be evaluated by the novel algorithm. The four actuator concepts comprise a conventional valve-controlled concept and three different types of EHAs. The HDMM types are excavator, wheel loader, backhoe and telehandler. Finally, the evaluation of the 16 matches results in 16 mismatch values of which the lowest indicates the "perfect match". Low mismatch values could be found in general for EHAs in combination with most HDMMs but also for a valve-controlled actuator concept in combination with a backhoe. Furthermore, an analysis of the concept limitations with suggestions for improvement is included.

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“…Very large or long actuators are critical because the pendulum volume is large in these cases as well, and the accumulator size must be rapidly increased [10]. Therefore, c 2 is rated 4.…”

Section: Electro-hydraulic Actuatorsmentioning

confidence: 99%

Finding the Perfect Match: Different Heavy-Duty Mobile Applications Call for Different Actuators

Fassbender

Minav

2020

The 1st International Electronic Conference on Actuator Technology: Materials, Devices and Applications

View full text Add to dashboard Cite

show abstract

An Algorithm for the Broad Evaluation of Potential Matches between Actuator Concepts and Heavy-Duty Mobile Applications

Fassbender¹,

Minav²

2021

Actuators

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In recent years, a variety of novel actuator concepts for the implements of heavy-duty mobile machines (HDMMs) has been proposed by industry and academia. Mostly, novel concepts aim at improving the typically low energy efficiency of state-of-the-art hydraulic valve-controlled actuators. However, besides energy-efficiency, many aspects that are crucial for a successful concept integration are often neglected in studies. Furthermore, most of the time, a specific HDMM is focused as an application while other HDMM types can show very different properties that might make a novel concept less suitable. In order to take more aspects and HDMM types into account when evaluating actuator concepts, this paper proposes a novel evaluation algorithm, which calculates so-called mismatch values for each potential actuator-application match, based on different problem aspects that can indicate a potential mismatch between a certain actuator concept and an HDMM. The lower the mismatch value, which depends on actuator characteristics as well as HDMM attributes, the more potential is the match. At the same time, the modular nature of the algorithm allows to evaluate a large number of possible matches at once, with low effort. For the performance demonstration of the algorithm, 36 potential matches formed out of six actuator concepts and six HDMM types are exemplarily evaluated. The resulting actuator concept ratings for the six different HDMMs are in line with general reasoning and confirm that the evaluation algorithm is a powerful tool to get a first, quick overview of a large solution space of actuator-HDMM matches. However, analyzing the limitations of the algorithm also shows that it cannot replace conventional requirements engineering and simulation studies if detailed and reliable results are required.

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Bootstrap reservoir concepts for electro-hydraulic compact cylinder drBootstrap reservoir concepts for electro-hydraulic compact cylinder drivesives

Cited by 2 publications

References 0 publications

Finding the Perfect Match: Different Heavy-Duty Mobile Applications Call for Different Actuators

Finding the Perfect Match: Different Heavy-Duty Mobile Applications Call for Different Actuators

An Algorithm for the Broad Evaluation of Potential Matches between Actuator Concepts and Heavy-Duty Mobile Applications

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