Active Electromagnetic Clutch for Crankshaft Decoupling from a Belt Drive System
Source abstract
Abstract
This work presents a novel electromagnetic clutch installed on the crankshaft pulley to decouple the internal combustion engine from the front-end accessory drive of a P0 hybrid electric vehicle. The objective is to supply the air conditioning compressor directly with the belt starter–generator electric machine without dragging the inertia of the engine during engine fuel cut-off phases. This operation yields an improved vehicle energetic efficiency and allows for uninterrupted air conditioning also when the start–stop function is activated. This paper focuses on the mechanical assembly and electromagnetic behavior of the device. Furthermore, two position-sensorless techniques are proposed to estimate the clutch state. The effectiveness of the proposed solution is experimentally validated on a dedicated test bench. Experimental tests demonstrated that the opening and closing phases required 50 and 25ms, respectively, thereby satisfying the time constraints for switching different operating modes in a vehicle (∼100ms).
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Research context
OpenAlex topics: Electric and Hybrid Vehicle Technologies · Industrial Technology and Control Systems · Industrial Automation and Control Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Center for Automotive Research and Sustainable Mobility (CARS), Politecnico di Torino, 10129 Turin, Italy
Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy
School of Engineering and Sciences, Tecnologico de Monterrey, Mexico City 14380, Mexico
Propulsion Solutions srl, 10015 Ivrea, Italy
Funding
Ministerial Decree · FSE REACT-EU-PON Ricerca e Innovazione 2014–2020
References (16)
Show source-provided references
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