Allison Transmission. has been granted a patent for an electric axle assembly designed for vehicles. The assembly features a suspension frame, drive assemblies, and a drive module that controls the drive assemblies, providing motive force to the vehicle’s wheels while allowing for modular design and maintenance. GlobalData’s report on Allison Transmission 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 Allison Transmission, Hybrid powertrains was a key innovation area identified from patents. Allison Transmission's grant share as of July 2024 was 63%. Grant share is based on the ratio of number of grants to total number of patents.
Electric axle assembly for vehicle propulsion
The patent US12059958B2 describes an innovative electric axle assembly designed to enhance vehicle performance through an integrated drive assembly and control module. The assembly features a suspension frame with a defined recess, housing a drive assembly that includes an electric drive unit and a drive train within a protective case. A drive module, which controls the operation of the drive assembly, is coupled to the suspension frame and includes a sealed enclosure that houses a drive circuit. This enclosure is designed to be easily inserted and removed from the recess, allowing for maintenance and flexibility in design.
Further details of the electric axle assembly include a drive circuit that comprises an inverter and a controller, which selectively powers the inverter for the electric drive unit's operation. The design also incorporates a cooling circuit and sealed connectors for secure communication between the drive module and the drive assembly. The assembly allows for various interconnects for power and control signal delivery, as well as cooling fluid delivery. Additionally, the drive module is supported by isolation mounts that dampen forces from the suspension frame, enhancing durability and performance. Overall, this patent presents a comprehensive solution for electric axle assemblies, focusing on modularity, ease of maintenance, and effective thermal management.
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