Rivian Automotive. has been granted a patent for a controller unit designed to manage mechanical load transitions between an electric motor and a vehicle axle. The unit includes a processor and memory to execute instructions for torque requests, motor speed evaluation, and status determination of the load transition. GlobalData’s report on Rivian Automotive gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Rivian Automotive, Hydrogen fuel cells was a key innovation area identified from patents. Rivian Automotive's grant share as of July 2024 was 26%. Grant share is based on the ratio of number of grants to total number of patents.
Controller unit for managing motor and mechanical load transitions
The patent US12071006B2 describes a controller unit designed to manage mechanical load transitions between an electric motor drive unit and a mechanical load, specifically in vehicles. The controller unit comprises a processor and memory that store executable instructions. These instructions enable the processor to receive requests for mechanical load transitions, send torque requests to the electric motor, and assess the status of these transitions based on motor speed values. The system can determine whether a transition has occurred or not, and it can output the status, including error signals if the transition fails to occur as requested.
The claims further detail the conditions under which the controller determines the success of the mechanical load transition. For instance, it specifies scenarios where the motor speed indicates that the mechanical load is either connected or disconnected from the electric motor, and how these conditions relate to threshold speed values. The vehicle configuration includes components such as a speed sensor, a disconnect assembly, and the electric motor drive unit, all of which work in conjunction with the controller to facilitate the connection and disconnection of the axle from the electric motor. The method outlined in the patent emphasizes the importance of monitoring motor speed and responding appropriately to requests for mechanical load transitions, ensuring efficient operation and error management within the vehicle's drive system.
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