GM Unveils All-New Motors For Its Future EV Range

General Motors has unveiled three new motors – a 180kW front-drive motor, 255kW rear- and front-drive motor, and 62kW all-wheel drive assist motor – that will power electric vehicles (EVs) using the company’s Ultium Drive system.

The 180kW and 255kW units are permanent magnet motors, while the 62kW unit is an induction motor. GM says all are expected to offer excellent torque and power density, enabling a wide spectrum of vehicle types, from performance cars to work trucks.

GM says its engineers have also developed the software for Ultium Drive’s motor controllers, which is key to serving the propulsion needs of various vehicle types with a minimal set of components, and the company has also designed the software of key power electronics components such as the inverter.

The inverter and other power electronics, such as the accessory power module and onboard charging module, reside outside of the drive units on GM’s current EVs. In Ultium-based vehicles, they will be integrated directly into Ultium Drive units, reducing cost and manufacturing complexity.

In a sign of how complex vehicles are becoming, and highlighting the importance of software development teams and engineers, GM says it has nearly 11,000 product development teams members currently working in software development and that number is projected to grow with software serving as a critical pillar of GM’s vision of an all-electric future.

GM’s all-new EV motors and integrated power electronics contained within its Ultium Drive units, will debut on the 2022 GMC Hummer EV.

Source: Motor Trader e-Magazine (October 2021) 

20 October 2021

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