Advanced shifting control of a two speed gearbox for an electric vehicle

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URI: https://hdl.handle.net/11556/2471
ISBN: 9781510809260
Publication date
2015
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Korean Society of Automotive Engineers
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Abstract
The apparition of electric vehicles on the market generates new challenges. Within them, one of the most important is related to the vehicle autonomy. In this paper an advanced shifting control system for a two speed gearbox is presented. It combines driving conditions and driving style inference techniques in conjunction with an expert decision control system for selecting the most suitable gear for energy saving. The expert control system is offline-tuned using a set of pre-specified simulation trips which characterize different scenarios. These pre-specific trips are recognized in real time to apply the expert control rules. The strategy is combined with an automatic shifting sequence with speed synchronization which reduces shifting times and torque transitions. Compared to a single-geared vehicle, an energy saving up to 10% can be achieved keeping the driver sensations while driving. An ad-hoc HIL mechatronic test bed has been developed for the complete system testing purposes.
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Driving cycle , EV , Gearbox control , GKN , HEV , HIL , Powertrain control , SVM , Fuel Technology , Automotive Engineering , Electrical and Electronic Engineering , SDG 7 - Affordable and Clean Energy
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conference output
Citation
Allende , M , Prieto , P , Hériz , B , Cubert , J M & Gassman , T 2015 , Advanced shifting control of a two speed gearbox for an electric vehicle . in 28th International Electric Vehicle Symposium and Exhibition 2015, EVS 2015 . 28th International Electric Vehicle Symposium and Exhibition 2015, EVS 2015 , Korean Society of Automotive Engineers , 28th International Electric Vehicle Exhibition, EVS 2015 , Goyang , Korea, Republic of , 3/05/15 .
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