Martin Hochwallner

Martin Hochwallner
Linköping University | LiU · Department of Management and Engineering (IEI)

Dipl.-Ing. PhD

About

19
Publications
4,694
Reads
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90
Citations
Additional affiliations
August 2018 - present
Linköping University
Position
  • Biträdande Universitetslektor
Description
  • Division of Manufacturing Engineering
July 2017 - August 2018
Linköping University
Position
  • Universitetsadjunkt
January 2017 - February 2017
Linköping University
Position
  • Teaching Mechatronics: Lessons and Laboratoies
Description
  • The lessons are about sensors and actuators. In the laboratory students connect components and control a DC motor via TI LaunchPad programmed with X2C http://www.mechatronic-simulation.org/. I designed this part of the course. 139 students.
Education
March 1996 - January 2004
Johannes Kepler University Linz
Field of study
  • Mechatronics

Publications

Publications (19)
Conference Paper
This contribution presents the novel Hydraulic Infinite Linear Actuator (HILA). It focuses on the control of motion and is based on simulation and analysis. The novel actuator consists of two symmetric double acting cylinders with a common piston rod and hydraulically detachable pistons. Alternatingly one cylinder engages and drives the load while...
Conference Paper
Full-text available
Rotational hydraulic actuators, e.g. motors, provide infinite stroke as there is no conceptual limit to how far they can turn. By contrast linear hydraulic actuators like cylinders provide only limited stroke by concept. In the world of electrical drives, linear motors provide infinite stroke also for linear motion. In hydraulics, the presented Hyd...
Conference Paper
The focus of this paper is the applicability of SysML [2] for modelling certain aspects of both, mechatronic systems and the corresponding engineering processes. SysML is derived from UML, which was developed for software engineering, with the intention to support the engineering of technical systems in general. Although the usefulness of UML is wi...
Chapter
The remanufacturing industry currently relies significantly on manual work when, for example, sorting and disassembling. Due to several issues, including process time and sequence, operations number, disassembly planning and scheduling, process cost, and performance measurement, it is challenging to stay competitive. Based on this, it is assumed th...
Chapter
Full-text available
Remanufacturing is the industrial process of returning used products (cores) to a like-new or better condition. During this industrial process, the cores go through several process steps, e.g., inspection, disassembly, cleaning, reprocess (repairs), storage, reassembly and final testing. Manufacturing companies also see remanufacturing as a way to...
Conference Paper
Linear Incremental Hydraulic Actuators are a class of actuators consisting of one or more double-acting cylinders with are detachable from a common piston rod. The actuator works in a kind of rope-climbing motion. The cylinders engage to the rod, drive the load, disengage and retract. The various patterns, how these base actions of the realized cyl...
Article
Full-text available
The concept of the Hydraulic Infinite Linear Actuator, HILA, consists of two double-acting cylinders with hydraulically detachable pistons driving a common rod. Alternatingly one cylinder engages and drives the load while the other retracts; the actuator thus works in a kind of rope-climbing motion. The actuator has three degrees of freedom, DoFs,...
Article
Full-text available
Establishing mass-customization practices, in a sustainable way, at a time of increased market uncertainty, is a pressing challenge for modern producing companies and one that traditional automation solutions cannot cope with. Industry 4.0 seeks to mitigate current practice’s limitations. It promotes a vision of a fully interconnected ecosystem of...
Thesis
Full-text available
Linear Incremental Hydraulic Actuators combine one or more short-stroke cylinders, and two or more engaging/disengaging mechanisms into one actuator with long, medium, or even unlimited stroke length. The motion of each single short-stroke actuator concatenated by the engaging/disengaging mechanisms forms the motion of the linear incremental hydrau...
Conference Paper
Full-text available
The Hydraulic Infinite Linear Actuator, HILA, has been presented in previous publications. The novel actuator consists of one, two or more double-acting cylinders with a common piston rod and hydraulically detachable pistons. In the basic gait, one cylinder alternatingly engages and drives the load while the other retracts. The HILA thus works in a...
Conference Paper
Full-text available
Interest in the control of variable fluid power pumps/motors has increased in recent years. The actuators used are inefficient and expensive and this reduces the variable units' usability. This paper introduces displacement control of pumps/motors by means of a rotating valve plate. By changing the angle of the valve plate, the effective use of the...
Poster
stroke length, stiffness, compactness, …
Conference Paper
In the area of linear motion, infinite stroke only is provided by electric actuators today, until now there has been no hydraulic alternative. The novel linear hydraulic actuator consists of two double acting cylinders with a common piston rod. The working principle of this actuator for short movements is that at least one piston is connected to th...
Poster
How to teach Mechatronics to Mechine Design students? The poster presents a students lab featuring a DC motor, LanchPad from TI as controller and X2C (http://www.mechatronic-simulation.org/) as controller development environment. Mechanical Engineering students get hands on a simple but comprehensive mechatronic system. They get a glimpse beyond th...
Conference Paper
In this study we present a new free tool-chain for model based control design for mechatronic plants applicable to small embedded systems based among other software on the open simulator Scilab-XCos. After a very short introduction of model based design terms this article focuses on the code generator and the other programs of the tool-chain. The d...
Presentation
Full-text available
X2C is a free and open source tool for the model-based development and code generation of real time control algorithms for micro processor units. See http://www.mechatronic-simulation.org/.
Conference Paper
Each engineering domain, such as mechanical, electrical, hydraulic and software engineering has developed specialized tools to support its engineering work. Also for the management of the design process a lot of customized tools are used. Most of them have independent programming interfaces making the coupling error prone and resource intensive. In...

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