The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2024
Filed:
Oct. 25, 2023
Fca Us Llc, Auburn Hills, MI (US);
Corey Allard, Fenton, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
Grade based transmission park pawl unloading techniques include in response to detecting a request to shift a transmission of a vehicle out of a park state, determining a set of load parameters using a set of sensors configured to monitor the set of load parameters of the vehicle, the set of load parameters including at least a grade of a surface that the vehicle is on and a weight of the vehicle, based on the set of load parameters, activating a series of a plurality of clutches of the transmission to cause the transmission to transfer or output a desired amount of drive torque in a desired direction to unload the park pawl, and when the park pawl is unloaded, shifting the transmission out of the park state without any noise/vibration/harshness (NVH) associated with the previous loading of the park pawl.