Jean-Claude Matt

Micro-mild hybrids using ultra-cap technology

Hybridization requires energy storage elements even for the first steps like micro-hybrids. The level of hybridization determines directly the energy storage solution. Furthermore, the energy storage solution influences strongly the global cost of the system. For electrical vehicles, the cost of the battery exceeds 70 % of the hybridization costs. This fact has pushed the choice of Valeo to offer a intermediate micro-mild solution based on ultra-capacitors in order to optimize the costs of the system.

Mikro-Mildhybrid mit Ultrakondensator-Technik

Bei der Hybridisierung werden schon fur die ersten Schritte wie Mikro-Hybride Energiespeicherelemente benotigt. Die Energiespeicherlosung ergibt sich direkt aus dem Hybridisierungsgrad. Auserdem werden durch die Energiespeicherlosung die Gesamtkosten des Systems entscheidend beeinflusst. Bei Elektrofahrzeugen macht die Batterie uber 70 % der Hybridisierungskosten aus. Deswegen hat sich Valeo dafur entschieden, eine auf Ultrakondensatoren basierende Mikro-Mild-Zwischenlosung zu optimierten Kosten anzubieten.

Experimental setup for measuring the local temperature of active electronic components

A novel non-destructive and non-contacting technique for the local temperature measurement of heat spot in electronic component is presented. Highly-sensitive lock-in near infrared (NIR) thermography is used to localize the heat spot induced temperature variations down to 10-1°C at a lateral resolution down to 3 μm. Speedy temperature evolution about 10 microseconds can be followed as using an integral InGaAs PIN photodiode assembled with the matched preamplifier.