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:
Apr. 24, 1984
Filed:
May. 13, 1982
Applicant:
Inventors:
Royal R Hawkins, Burlington, MN (US);
Leland E Kuntz, Edina, MN (US);
Assignee:
Sundstrand Corporation, Rockford, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
180197 ; 60451 ; 180243 ;
Abstract
The present invention is directed to a torque control with overspeed regulation and a method of controlling a hydrostatic drive for use in an auxiliary wheel drive of a vehicle which has both primary driven wheels and auxiliary driven wheels. The torque control permits maximum torque drive of the auxiliary wheels when the primary driven wheels slip but yet prevents overspeed operation of the auxiliary wheels. Preferably the torque control with overspeed regulation has both an aggressive control and a sensitivity control so that the auxiliary wheel drive can be selectively modulated with respect to the primary wheel drive.