Stellantis has filed a patent for a control system that optimizes automatic transmission during rock cycling maneuvers in a vehicle. The system monitors operating parameters, switches between calibrations for normal shifts and rock cycling, enhancing performance during garage shifts. GlobalData’s report on Stellantis 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 Stellantis, Battery management systems was a key innovation area identified from patents. Stellantis's grant share as of January 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.
Control system for automatic transmission optimized for rock cycling maneuvers
A newly filed patent (Publication Number: US20240035564A1) describes a control system for an automatic transmission of a vehicle. The system includes a set of sensors to monitor operating parameters related to a rock cycling maneuver, which involves consecutive garage shifts of the transmission. A controller determines if the parameters meet entry or exit criteria for the rock cycling mode and adjusts transmission control accordingly. While not in the rock cycling mode, the transmission is controlled based on calibrations optimized for normal shifts, switching to a different set of calibrations optimized for the rock cycling maneuver when in the rock cycling mode.
Additionally, the patent outlines a method for controlling the automatic transmission, involving receiving operating parameters from sensors, determining entry or exit criteria for the rock cycling mode, and adjusting transmission control accordingly. The method includes applying hysteresis to the determination process and considers parameters such as shift counter, clutch temperature, accelerator pedal position, vehicle speed, and transmission output shaft speed. The controller enters the rock cycling mode based on specific thresholds being exceeded and exits the mode when conditions return to normal, with the option for a driver-controllable enable/disable signal for rock cycling detection. The patent specifies that the system is designed for heavy-duty pickup trucks, highlighting its potential application in vehicles requiring optimized transmission control during rock cycling maneuvers.
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