Optimisation of a Parallel Hybrid Powertrain for Non-Road Applications

01.03.2011 - 28.02.2014
Forschungsförderungsprojekt
With Euro Stage IV or Tier 4 an emission legislation comes into effect in 2013/2014, which makes an after-treatment in the non-road sector essential. After the drastic reduction of ni-trogen oxide and particulate emissions, advanced by legislature in the last 15 years, the re-duction of fuel consumption comes to the fore in the near future. The hybridisation can be a convenient tool to advance the two tasks emission and fuel con-sumption reduction and to enable an optimisation between these two targets. To remain competitive with respect to the overall system costs, it is also necessary to reduce parts of the engine or the exhaust aftertreatment or at least simplify them. In summary, the research work includes the following objectives. Combustion Concepts: In a first step, different (alternative) combustion concepts will be evaluated with basic re-search on a research engine (single cylinder engine), which is subsequently transferred to a 6-cylinder complete engine (270 kW). A key content is the application and evaluation of combustion concepts, which are only meaningful in combination with a hybrid drive (e.g. due to a possible limitation of the used diesel engine operating ranges and a desensitisation). Requirement Analysis: In order that the overall concept is generally applicable to construction vehicles, the de-mands on the non-road hybrid drive have to be fully known. Therefore, cycles of different target devices are collected. Within this work package it has to be ensured that often very different operation spectra of the respective target devices can be covered. Modelling of batteries for Non-Road Applications: The development and the online-calibration of battery models are necessary to realize repro-ducible tests at the engine test bed. A Real-time battery simulator will be fundamental for the validation of the complete concept. Adaptive Energy Management System: To take advantage of the degrees of freedom a hybrid drive offers, an energy management system has to be developed. The energy management should be kept generic so that it can be stored with different strategies and thus be optimally adapted to different target devices and different applications, even taking place self-sufficient. An essential component of en-ergy management is a model predictive cycle-based control sequence. Validation of the Complete Concept: Finally, the hybrid drive will be built up on a test-bed by integrating the above components and a starter-generator (65 kW) to ensure this concept. The overall concept, developed and optimised within the project, should be applied in a fol-low-up project to a target device, so that a function owner is available for further research.

Personen

Projektleiter_in

Projektmitarbeiter_innen

Institut

Contract/collaboration

  • Liebherr Machines Bulle SA

Grant funds

  • FFG - Österr. Forschungsförderungs- gesellschaft mbH (National) Austrian Research Promotion Agency (FFG)

Forschungsschwerpunkte

  • Sustainable and Low Emission Mobility: 50%
  • Modeling and Simulation: 50%

Schlagwörter

DeutschEnglisch
MechatronikMechatronics
Hybridantriebhybrid drive

Externe Partner_innen

  • Technische Universität Graz

Publikationen