GM details the motors that will power its electric Hummer and other EVs
General Motors has spent a lot of time recently talking up the capabilities of its upcoming Ultium battery technology but has said significantly less so about the motors those cells will power. That changed on Tuesday when the company detailed its new Ultium Drive motors. With today’s announcement, the series consists of three different models: a 180 kW front-drive model, a 255 kW rear- and front-drive variant and a 62 kW all-wheel drive assist motor. The first two models are permanent magnet motors GM designed in such a way so as to try and reduce its dependence on heavy rare metals.
The company didn’t speak to the specific torque and power density characters of each motor but claimed they should deliver “excellent” performance on those fronts. It also revealed the 2022 Hummer EV will feature three of the 255 kW models. GM claims they will enable the vehicle to produce a combined 11,500 ft/lb of torque and accelerate from zero to 60 miles per hour in approximately three seconds.
GM says its engineers designed the motors with scalability in mind. Each one can be made using similar tools and manufacturing techniques. It also found a way to integrate components like the power inverter directly into the motors, a feat the company said should reduce costs and simplify manufacturing.
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