Allison Transmission has been granted a patent for transmissions, control systems, and methods of operation. The invention involves a transmission with clutches controlled by a system that adjusts fluid pressures based on vehicle input, boosting power on inclines and reverting to normal operation on level surfaces. 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 January 2024 was 61%. Grant share is based on the ratio of number of grants to total number of patents.
Method of operating vehicle transmission with boost mode control
A recently granted patent (Publication Number: US11885411B2) discloses a method for operating a vehicle's transmission using a control system. The method involves receiving input from various devices indicating the transmission's operational characteristics and boosting fluid pressures applied to clutches based on this input when the vehicle is on a surface with a grade exceeding a threshold. The controller discontinues the boost mode when the grade falls below the threshold, ensuring optimal transmission performance.
Furthermore, the patent details the process of boosting fluid pressures and input torque limits in response to the surface grade determination, enhancing the transmission's efficiency during challenging driving conditions. The method also includes provisions for discontinuing the boost mode and reverting to baseline values when the grade no longer exceeds the threshold. By integrating multiple input devices and sensors, the controller can adapt the transmission's operation dynamically, providing a seamless driving experience while optimizing performance based on real-time conditions.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
