公开(公告)号：US20250127080A1

公开(公告)日：2025-04-24

申请号：US18920455

申请日：2024-10-18

Applicant: MTD PRODUCTS INC

Inventor： Zachary A. Lyzen ,  Adam J. Woodrum ,  Katharin Jensen-Nau

IPC: A01D34/00 ,  A01D101/00

Abstract: An apparatus coupled with steering and optionally drive components of a power equipment device can be utilized to implement operator-initiated autonomous turning of the power equipment device. As an example, the apparatus can turn the power equipment device from an initial heading to a second heading. The second heading can be selected to achieve a target angular displacement from the initial heading. Further, the second heading can be implemented to accomplish a linear displacement of the power equipment device in addition to the angular displacement. A steering control signal is generated and provided to an automated steering control unit to turn the power equipment device in response to an operator's input at a user input/output device. The apparatus delivers an operator-initiated limited autonomous driving module for alleviating a portion of the rote driving responsibilities for the operator of the power equipment device.

公开(公告)号：US20240407291A1

公开(公告)日：2024-12-12

申请号：US18737461

申请日：2024-06-07

Applicant: MTD PRODUCTS INC

Inventor： Zachary A. Lyzen ,  Adam Woodrum ,  Katharin Jensen-Nau

IPC: A01D34/64 ,  B62D5/04

Abstract: Systems and methods for drive and steering control in a drive-by-wire system for outdoor power equipment are discussed. Various embodiments can employ techniques related to one or more of: steering based on actively steered wheels with zero caster trail, variable output damping of vehicle control outputs, steering that compensates for drive system loss, emulation of drivability of a hydrostatic drive system by a non-hydrostatic drive system, employing a floating neutral point to improve steering on slopes, open loop techniques for hill holding and speed compensation on hills, and/or adjustment of a speed range associated with control inputs.