As a result, the Rubin CPX, while built on the same Rubin AI GPU architecture, is designed differently than the Rubin AI GPU, with 128GB of GDDR7 memory plus hardware encode and decode engines to support video generation.
—
Jim McGregor,
Forbes.com,
19 Sep. 2025
But the program ground to a halt when Germany blocked the export of the engines, citing a European Union arms embargo on China introduced after the 1989 Tiananmen Square crackdown in Beijing.
The research team emphasized that all core components, including motors, reducers, and motor drivers, were developed in-house, giving them technological independence.
When the vehicle is slowing down and the motors are regenerating kinetic energy into electrical energy, the PEM also converts that AC flow back to DC to charge the battery.
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