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Patent Searching and Data


Title:
DIFFERENTIAL TRACTION DRIVE WITH STEERING AXIS COORDINATION SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2020/117640
Kind Code:
A3
Abstract:
A system and method for differential traction drive and steering axis coordination for an autonomous mower or other turf device includes initiating a steering motion based on determining a target forward speed and a steering rotational speed, calculating a left wheel speed and a right wheel speed, and applying the left and right wheel speeds, wherein the steering rotational speed is driven by a steering motor and the traction wheels associated with the autonomous mower, and the left and right wheel speeds are based on the target forward speed, a distance from a steering axle to the center of the respective wheel, and the steering rotational speed.

Inventors:
CHANG HER-JYE (US)
SMITH AARON (US)
MAGGARD JAY E (US)
Application Number:
US2019/063931
Publication Date:
August 20, 2020
Filing Date:
December 02, 2019
Export Citation:
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Assignee:
MTD PRODUCTS INC (US)
International Classes:
B62D5/04; B62D7/04; B62D9/00; B62D11/00
Domestic Patent References:
WO2007062858A12007-06-07
Foreign References:
US20070295545A12007-12-27
US20110160963A12011-06-30
Attorney, Agent or Firm:
HAWK, Julie D. et al. (US)
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