Press Products Competencies CareerCompanies Downloads Contact DE EN ELECTROMOBILITY DRIVING THE FUTURE TODAY - WITH PREH Whether with a purely electric drive or as a hybrid vehicle - Preh has been developing pioneering e-mobility solutions for more than 10 years. Home>Products>E-mobility DC / DC CONVERTER & HIGH-VOLTAGE BOOSTER SOLUTIONS FOR 800V ELECTRIC VEHICLES The first electric vehicles with an 800V battery have been on sale since the end of 2019. These high-performance units make e-vehicles particularly fast - also when charging. 20 minutes at an 800V High Power Charge charging station and approx. 80 percent of the battery is recharged. Thanks to the integrated high-voltage booster from Preh, charging is also possible at any 400V fast charging station with an output of up to 150kW - for extra fast charging, anywhere. This 800V not only results in high performance and short charging times, but with the Preh DC voltage converter, three lower voltages can also be generated, which supply important components of the vehicle. Strictly speaking, it is a multi-converter that transforms the 800V into three voltages: into 400V (for the air conditioning compressor) as well as a bidirectional 48V voltage (for roll stabilization of the chassis) and 12V for the on-board power supply. The 48V voltage is used to supply the roll stabilization of the vehicle and works bidirectionally. The voltage can be converted back from 48V to 800V by recuperation. DC / DC CONVERTER, PORSCHE TAYCAN BOOSTER, PORSCHE TAYCAN 3.5 KW GENERIC ON-BOARD CHARGER 48V BATTERY MANAGEMENT CONTROL UNIT, MERCEDES-BENZ, VARIOUS MODELS 3.6 KW ON-BOARD CHARGER, VOLVO, LYNK & CO, VARIOUS MODELS 11 KW ON-BOARD CHARGER, VOLVO TRUCKS AND BUSES, VARIOUS MODELS ELECTRIC VEHICLES HIGH-VOLTAGE BATTERY MANAGEMENT Unter- und Überspannung, Temperaturschwankungen oder unterschiedliche Fertigungstoleranzen können die Lebensdauer von Batteriezellen in Elektrofahrzeugen verkürzen. Deswegen überwachen Hochvolt-Batteriemanagementsysteme (BMS) von Preh stetig die Spannung und Temperatur jeder einzelnen Batteriezelle. Zudem erreicht ein nach ASIL C-Standard konzipierter hochgenauer Stromsensor bei 0,1 Prozent Anfangskalibrierung noch nach zehn Jahren eine Messgenauigkeit von 1,0 Prozent. Auftretende Ladungs- oder Temperaturunterschiede werden durch das BMS ausgeglichen, für eine optimale Batterie-Performance und längere Lebensdauer. Ebenso kann die Restreichweite präzise ermittelt werden. Neben den für E-Fahrzeuge elementaren Aspekten der Performance, Lebensdauer und Restreichweite verfügen die Preh-Systeme auch über ein zweistufiges Sicherheitskonzept. © 2021 | PREH GMBH IMPRESSUM DATA PROTECTION CONTACT