F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 48/20 (2006.01) B60K 17/34 (2006.01) B60K 23/04 (2006.01)
Patent
CA 2313425
An articulated four wheel drive work vehicle is provided with a front axle having a front differential and a rear axle having a rear differential. Both differentials are provided with hydraulically operated differential locks that are coupled to respective solenoid control valves. The solenoid control valves are coupled to a microprocessor. The microprocessor has a manual mode in which the differential locks are controlled by a foot pedal in the operators cab and an automatic mode in which the microprocessor controls the differential locks in response to speed signals from the axles and the transmission. The microprocessor calculates a predicted axle speed based on the transmission output speed signal received by a transmission speed sensor. The microprocessor then compares this signal to the actual axle speed signals received from axle speed sensors and triggers the respective solenoid valve if the difference is greater than a programmed amount. An articulation angle sensor sends an articulation angle signal to the microprocessor. If the articulation is greater than a programmed amount the solenoid locks are released.
Porter Thomas Alan
Werner Gregory Keith
Borden Ladner Gervais Llp
Deere & Company
LandOfFree
Automatic differential lock does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic differential lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic differential lock will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1394456