BMW has made great efforts to discuss its new round battery cells for NEE class EVS. We have learned to expect an increase in energy density by 20% compared to existing prismatic cells. In addition, the gene6 batteries increase the loading speed by 30%thanks to the 800 volt technology. The range of an electric car will increase by 30%and in some cases 900 kilometers (560 miles) will be reached. Oh, and bidirectional fees will be standard. But what about the engines that supply future electric cars with electricity?
New electric motors
The German luxury brand is finally ready to reveal details about their brand new electric motors. EVS of the next generation will benefit from improvements to all fronts compared to the current harvest of zero emission models. For new class models with XDrive, BMW assembles an asynchronous motor (ASM) on the front axle.
In addition, the engineers improve the rear electrically excited synchronous engines (EESM) to optimize the rotor, the stator and the inverter for the 800 V architecture. Less weight and increased rigidity are promised together with a revision of the oil and water cooling systems. The two -stage helical design of the gearbox receives updates for cooling and geometry, whereby lower friction levels and “more pleasant acoustics” are achieved.
As can be seen in the IX Facelifting, new class models use silicium carbide -hal writer (sic) for greater efficiency. BMW will completely integrate the inverter into the housing of the electric motor for improved packaging. The combination of the two motor types in a NEE-class model with XDRIVE reduces the weight compared to an existing all-wheel drive EV. BMW will reduce energy losses by 40% and SLASH production costs by 20%.
Up to four engines
BMW intends to assemble one, two, three and even four electric motors in its next generation. Logic informs us that the M models include the quad engine setups, but probably not from the beginning. We previously reported how the electric M3 “ZA0” will initially have a dual engine agreement. It should deliver 670 hp and go up from there with subsequent hotter derivatives.
BMW combines the new engines and batteries and aims to improve the overall efficiency of an eV by 20%. It is actually somewhat lower than promised. When the vision of new class X stopped cover last year, the Munich -based car manufacturer mentioned an increase in total vehicle fabric by 25%. The electrical frequency of frequency also had an aerodynamic body with a reduction in air resistance by 20% compared to the outgoing Clar-based IX3. It had a new set of brakes and tires that were specially optimized for EVS.
This autumn, BMW will include its electrification efforts in higher equipment if it reveals the new IX3. The i3 sedan will go into production in the Munich plant next year. Several other EVs in the new class architecture will arrive until 2028, possibly an i3 touring and an IX4.
Source: BMW
