Energy saving and fuel consumption reduction techniques are among the principal interests for both academic institutions and industries, in particular, system optimization and hybridization. This paper presents a new hydraulic hybrid system layout for mobile machinery implemented on a middle size excavator. The hybridization procedure took advantage of a dynamic programming (DP) algorithm, which was also utilized for the hybrid components dimensioning and control strategy definition. A dedicated experimental activity on test bench was performed on the main components of the energy recovery system (ERS). The JCMAS working cycle was considered as the reference test for a fuel consumption comparison between the standard and the hybrid excavator. A fuel saving up to 8% on the JCMAS cycle, and up to 11% during the digging cycle, has been allowed by the proposed hybrid system.

Energy saving and fuel consumption reduction techniques are among the principal interests for both academic institutions and industries, in particular, system optimization and hybridization. This paper presents a new hydraulic hybrid system layout for mobile machinery implemented on a middle size excavator. The hybridization procedure took advantage of a dynamic programming (DP) algorithm, which was also utilized for the hybrid components dimensioning and control strategy definition. A dedicated experimental activity on test bench was performed on the main components of the energy recovery system (ERS). The JCMAS working cycle was considered as the reference test for a fuel consumption comparison between the standard and the hybrid excavator. A fuel saving up to 8% on the JCMAS cycle, and up to 11% during the digging cycle, has been allowed by the proposed hybrid system.

Familjeskogsbruket har sällan någon anledning att bekymra sig om grundläggande förändringar av verksamhetens inriktning. I ett slag har dock situationen förändrats för skogsägarna i de stormdrabbade områdena. Den uppkomna situationen gör att många olika beslut måste tas som kommer att forma skogsfastigheten i flera decennier. Det finns därför ett behov av att kunna styra skogsgårdens verksamhet så att varje enskilt beslut bildar ett enhetligt mönster mot ett gemensamt mål. Ett sätt att göra det på är att använda teorierna kring strategisk management och applicera dessa på familjeskogsbruken. Denna rapport har utgått från gängse metodik vid strategiframtagning och målsättningsarbete. Olika metoder och verktyg beskrivs till sitt innehåll och syfte. Därefter samlas ett antal metoder i ett arbetsflöde som passar behoven för skogsgårdens strategiframtagning. Slutligen testas metodiken på en speciell skogsgård i det storm-drabbade området För att få kontinuitet i förändringsarbetet så har en återkommande revidering av strategiarbetet föreslagits. Det är bara genom ett enträget och långsiktigt arbete som gamla vanor och arbetsprocesser kan förändras. / The family forest farms do seldom have any reason to worry about basic changes of the business plan. In an instant, that has been changed for the forest owners in the region that was hardest hit by the storm. The situation at hand calls for a lot of different decisions to be taken that will shape the forest estate for several decades. There is a need for controlling the forest farm business so that each individual decision is forming a uniform pattern against a defined objective. One way of doing just that is to use the theories of strategic management and apply those on the family forest farm business. This report is based on the generic methodology that is used for strategy definition and goal setting. Different methods and tools are described to content and purpose. After that, a couple of methods are used in a work flow that fit the needs when developing the strategies for the forest farm. As a last step, the methodology is tested on a special forest farm that is situated in the storm hit region. To achieve continuity in the change process, a reoccurring assessment of the strategy work has been proposed. It is only by dedicated and consistent work that old habits and working processes can be changed.

<p>Familjeskogsbruket har sällan någon anledning att bekymra sig om grundläggande förändringar av verksamhetens inriktning.</p><p>I ett slag har dock situationen förändrats för skogsägarna i de stormdrabbade områdena. Den uppkomna situationen gör att många olika beslut måste tas som kommer att forma skogsfastigheten i flera decennier. Det finns därför ett behov av att kunna styra skogsgårdens verksamhet så att varje enskilt beslut bildar ett enhetligt mönster mot ett gemensamt mål. Ett sätt att göra det på är att använda teorierna kring strategisk management och applicera dessa på familjeskogsbruken.</p><p>Denna rapport har utgått från gängse metodik vid strategiframtagning och målsättningsarbete. Olika metoder och verktyg beskrivs till sitt innehåll och syfte. Därefter samlas ett antal metoder i ett arbetsflöde som passar behoven för skogsgårdens strategiframtagning. Slutligen testas metodiken på en speciell skogsgård i det storm-drabbade området</p><p>För att få kontinuitet i förändringsarbetet så har en återkommande revidering av strategiarbetet föreslagits. Det är bara genom ett enträget och långsiktigt arbete som gamla vanor och arbetsprocesser kan förändras.</p> / <p>The family forest farms do seldom have any reason to worry about basic changes of the business plan.</p><p>In an instant, that has been changed for the forest owners in the region that was hardest hit by the storm. The situation at hand calls for a lot of different decisions to be taken that will shape the forest estate for several decades. There is a need for controlling the forest farm business so that each individual decision is forming a uniform pattern against a defined objective. One way of doing just that is to use the theories of strategic management and apply those on the family forest farm business.</p><p>This report is based on the generic methodology that is used for strategy definition and goal setting. Different methods and tools are described to content and purpose. After that, a couple of methods are used in a work flow that fit the needs when developing the strategies for the forest farm. As a last step, the methodology is tested on a special forest farm that is situated in the storm hit region.</p><p>To achieve continuity in the change process, a reoccurring assessment of the strategy work has been proposed. It is only by dedicated and consistent work that old habits and working processes can be changed.</p>