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. 12, 1994
Filed:
Jan. 22, 1993
Heinz Weiss, Bensheim, DE;
Deere & Company, Moline, IL (US);
Abstract
A vehicle power distribution and control system controls and distributes the power supplied to the wheels of a motor vehicle with at least two driven axles. One of the axles includes an axle differential gear. The control system includes a steering angle sensor, rotational speed sensors to monitor the rotational speeds of the wheels of at least one axle, and an electronic control unit. A differential lock for the axle differential gear is controlled by the control unit to equalize sliding effects that can occur between the wheels of one axle. The control unit calculates a theoretical rotational speed difference ratio from the value of the sensed steering angle for conditions of rolling without any slip and an actual rotational speed difference ratio from the sensed rotational speed values. The control unit compares the two rotational speed difference ratios with each other in predetermined time intervals and transmits control signals to the axle differential locks to increase the degree of locking of the axle differential lock when the actual rotational speed difference ratio is greater than the theoretical rotational speed difference ratio, and to reduce the degree of locking when the actual rotational speed difference ratio is smaller than the theoretical rotational speed difference ratio.