Porsche has unveiled a new technology aimed at simplifying the drive system of electric vehicles (EVs). Traditionally, an EV’s drive system includes multiple separate components: a high-voltage battery, a battery management system, power electronics for motor control, and an onboard charger for AC charging. However, Porsche’s new innovation integrates these functions into a single component.
The power electronics in this system use a pulse inverter to convert the battery’s DC voltage into the sinusoidal three-phase AC voltage needed to power the vehicle’s electric motors. This integration offers significant advantages, including reduced housing size, lighter weight, lower costs, and improved reliability and efficiency.
Thomas Wenka, a specialist project manager at Porsche Engineering, explained, “The trend in the automotive industry is toward highly integrated components, which open up new possibilities in terms of housing size, weight and cost reduction, reliability and efficiency.” His team’s development has resulted in an AC battery platform that combines the battery management system, pulse inverter, low-voltage DC, and onboard charger into one streamlined unit.
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