Porsche’s 800V system, everyone has always been curious As more car companies like to tell us about this engineering design, the media interviewed these two directors: Otmar Bitsche, Director of Development Electrics, Electronics, Electromobility at Porsche Michael Kiefer, Director of High-Voltage Systems at Porsche Engineering From the picture, we can interpret some information How many modules the 90kWh is divided into is a problem, and it is arranged in three rows At present, there are 25 modules that can be directly seen. According to the estimation under the cover, there may be a total of 30 modules, each with 3 The two modules are VDA bundled together. According to the communication cable, it should be a distributed CMU design Through high-voltage, the size and wiring harness of the entire high-voltage connector are relatively thin Two big fuses are used An independent fuse is also configured on this side The processing of the copper busbars is also more interesting, and the details are not visible. Battery energy density interview, the old NCM 111 may be used, about 180wh/kg plan Currently high-voltage batteries using the latest lithium-ion technology are the gold standard. They offer an energy density of currently about 180 watt hours per kilogram Cooling scheme According to this design, the entire liquid cooling channel is integrated in the battery frame, and the liquid cooling pipeline is taken from the frame, and the cooling plate is directly below the frame, forming the outer frame and the inner frame. The cooling line input is a red tube The output is a blue tube, go straight down About 800V fast charging design variant: How to make 800V system compatible with the traditional 400V low-voltage charging pile of about 100kW on the battery system. Porsche’s idea here is to use a variant booster and use the Boost method. The voltage rises. We have two different variants, the charging park and the ChargeBox. The park is designed for locations with more available space in which a very high volume of charges is to be expected, 24 hours a day, seven days a week. With a small compact station, however, a charging park is possible in the city as well, for example in a residential area. For all areas with extreme space constraints, there is our second variant, the ChargeBox with an integrate battery. It can be connected to the normal low-voltage grid and enables fast charging in spite of its compact dimensions. Summary: A normal Porsche car is difficult to match the benchmark. It is not the official information given to us. We generally don’t have a good idea of ​​its sports car to see how it is designed. Another very important point is the integrated liquid-cooled tray design. Very interesting, Land Rover, Audi and Porsche all come here Wall-hung Boiler Pressure Sensor Shenzhen Ever-smart Sensor Technology Co., LTD , https://www.fluhandy.com
