![]() ![]() This means a faster cycle time to build and more consistent performance results during operation Construction features The C7 features a standard set of frame, rotor and stator components that can fit into the majority of common application configurations. ![]() Fast builds with pre-engineered components A specially designed frame and stator in the C7 that cools so effectively, that higher power ratings are easily achieved by smaller frame sizes. Our machines efficiently operate in challenging applications and severe environments where reliability and ease of maintenance is critical. So we were really focused on reducing losses inside of the unit, whether it be i2r losses or magnetic losses or switching losses," he said.Built on extensive rotating machines experienceīuild based on 100+ years of experience and know-how we continue to deliver innovative electrical and mechanical power solutions to the world. "We want every single joule of electric energy that goes into the motor to propel the wheels. As you might expect, the main focus for this third generation of electric motors has been efficiency. Then again, GM has a bit of experience with electric motor design, too, thanks to the Volt, Bolt, and EV1. So things like interchangeability, common datums and manufacturing locators things that allow us to scale and vertically integrate those concepts are just part of our propulsion design DNA at GM," he told me. "A lot of the same tenets and ideas are completely fungible in the electric propulsion space. Kwiatkowski told me that the process of developing a new family of electric motors wasn't all that different to designing a new internal combustion engine, something that occupied him for the first 15 years of his career. the amount of power or torque divided by the volume of the motor) will be industry leading. Kwiatkowski wouldn't be drawn more on the specs other than to tell me that both power and torque density (i.e. We know that the GMC Hummer will use three motors in total (a front truck drive unit and the dual-motor truck drive unit, at a guess) with a combined output of 745kW (1,000hp). Advertisementįurther Reading Cadillac reveals the Lyriq, its new long-range electric SUVGM is still being coy about power and torque outputs for the motors. And inside each drive unit is one of three electric motors in the Ultium Drive family: a permanent magnet primary front-wheel drive motor, a permanent magnet primary drive motor that's happy in either front- or rear-wheel drive configurations, and a smaller induction magnet assist motor. One of these can be used for the front or rear axle, while the other is a dual motor drive unit for rear axles. There are drive units for front-wheel drive, rear-wheel drive, and an assist all-wheel drive unit, and then a pair of drive units for trucks. In total, there are five drive units, each of which integrates the power electronics as well as the electric motors. GM has developed a new family of modular drive units called Ultium Drive that it will mix and match in cars, crossovers, SUVs, and trucks. And this week it was time for motors to take to the stage. Further Reading General Motors announces new battery platform, claims $100/kWh soon We already learned a little about GM's modular Ultium battery packs, which it claims will break the $100/kWh barrier "early in the platform's life." As the reveal of the Hummer approaches, the company is opening up about other aspects of its new BEV brigade. ![]()
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