Displacement Control for Electric Motor Driven Open Center Mobile Hydraulics

Juho Lehto, Jari Vepsäläinen

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

Abstrakti

Fluid power systems in mobile machinery are inefficient, with significant energy losses due to throttling in directional valves. Electrification enables new hydraulic designs that utilize electric drive features like bidirectional operation and energy recovery, resulted in innovations such as electrohydraulic actuator (EHA) systems. However, EHAs are costly in mobile machinery due to their complex component requirements.

In the present study, an alternative open center mobile hydraulic architecture is presented that enables displacement control (DC) capabilities of actuators in certain use scenarios while maintaining centralized circuit architecture, limited number of components and concurrent multi-actuator control. The structure, control and operation of the system are presented and analyzed. A MATLAB/Simulink® model was developed to evaluate the feasibility of the proposed system, from which usability and initial energy saving potential is analyzed in the case of a wheel loader. Results are compared to a conventional open-center type negative flow control system.
AlkuperäiskieliEnglanti
OtsikkoThe 12th JFPS International Symposium on Fluid Power
KustantajaJFPS International Symposium on Fluid Power
TilaJulkaistu - 24 lokak. 2024
OKM-julkaisutyyppiEi sovellu
TapahtumaJFPS International Symposium on Fluid Power - Hiroshima, Japani
Kesto: 22 lokak. 202425 lokak. 2024
Konferenssinumero: 12

Conference

ConferenceJFPS International Symposium on Fluid Power
Maa/AlueJapani
KaupunkiHiroshima
Ajanjakso22/10/202425/10/2024

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