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News 14 September 2023

Electric machines and recyclable magnets: cutting-edge technologies to save material

The IFPEN Transports Energie and Énergies du futur (CEA-Liten) Carnot Institutes pooled their expertise for the Melchior project (Machines électriques dans une chaîne de valeur orientée vers le recyclage, or Electric Machines in a Recycling-Oriented Value Chain), conducted from 2022 to 2023 and aimed at developing an electric machine prototype based on recyclable magnet technology. This prototype significantly reduces the quantity of magnets habitually used and its innovative architecture facilitates recycling while guaranteeing excellent performance.

Issue 53 of Science@ifpen
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Magnets for future generations of electric vehicles

Permanent magnet synchronous motors (PMSM) are a reference technology for electric vehicle propulsion. However, their large-scale deployment is subject to the constraints associated with magnets: the capacity to obtain resources as well as the environmental challenges related to mining, recycling and refining. In addition, PMSMs often require flux-weakening1 strategies in order to operate at high speeds, which can result in energy losses...
Issue 52 of Science@ifpen
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Power electronics at the heart of electric mobility challenges

In the case of electrified vehicles, whether battery-powered (electric or hybrid) or powered by fuel cells (FC), power electronics (PE) converters play a major role, as they are used for a variety of functions. For example, they are used to drive electric motors, manage on-board energy or control traction battery recharging...
Issue 52 of Science@ifpen
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Electrical machines: Design, optimization, control and diagnosis

Like all sectors concerned by electrification, the transport sector requires the design of high-performance, efficient electrical systems that respond to multiple constraints, such as cost and compactness. In this context, optimisation has become an essential step in the design process of these systems, particularly for electrical machines...
Issue 51 of Science@ifpen
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SC1 - New experimental set up to study battery safety

The electrification of mobility is a major transformation aimed at reducing greenhouse gas and pollutant emissions by the transport sector. In this context, the Li-ion battery is currently the technology employed by all car manufacturers to provide the energy storage required for the roll-out of electric vehicles...
Issue 44 of Science@ifpen
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The 48-volts system: mild hybrid with significant potential

Electrification of the vehicle powertrain is one of the keys to sustainable mobility and hybridization with internal combustion engines is becoming increasingly common. In this context, the “48-volt” mild hybrid system is a low-cost, flexible and easy-to-integrate option, with reduced safety constraints and outstanding performances.
Science@ifpen n°32
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Ignition simulation

In order to reduce fuel consumption in gasoline engines , manufacturers are focusing their efforts on turbocharging and downsizing . However, this option leads to an increase in the knock phenomenon
Issue 30 Science@ifpen
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Energy in vehicles: we’ve got it under control!

In hybrid vehicles, onboard algorithms are aimed at splitting power between the various energy sources in order to minimize fuel consumption and/or pollutant emissions . This real-time management