US 11,991,943 B2
Vehicle electric motor hydraulic pump decoupling
Zachary Meyer Omohundro, Livermore, CA (US); Matthew Michael O'Brien, Livermore, CA (US); Matthew Coleman Tindall, Long Beach, CA (US); and Karan Kaushik, Dublin, CA (US)
Assigned to Zimeno Inc., Livermore, CA (US)
Filed by Zimeno, Inc., Livermore, CA (US)
Filed on Feb. 3, 2023, as Appl. No. 18/163,996.
Claims priority of provisional application 63/306,480, filed on Feb. 3, 2022.
Prior Publication US 2023/0240168 A1, Aug. 3, 2023
Int. Cl. A01B 71/06 (2006.01)
CPC A01B 71/06 (2013.01) 20 Claims
OG exemplary drawing
 
1. A vehicle comprising:
rear ground traction members;
front ground traction members;
an electric motor;
a reversible transmission operably coupling the electric motor to the rear ground traction members to drive the rear ground traction members;
a hydraulic motor operably coupled to the front ground traction members;
a hydraulic pump operably coupled to the electric motor for being powered by the electric motor and operably coupled to the hydraulic motor to drive the hydraulic motor;
a one-way clutch/bearing operably coupled between the electric motor and the hydraulic pump; and
a controller to operate in a first mode by transmitting control signals to the reversible transmission to cause the transmission to operate in a forward state and to the electric motor to cause electric motor to operate in a forward state in which the front ground traction members are driven forwardly, and in a second mode by transmitting control signals to the transmission to cause the transmission to operate in a reversed state and to the electric motor to cause the electric motor to operate in a reversed state in which the rear ground traction members are driven forwardly and in which the electric motor is operably decoupled from the hydraulic pump by the one-way clutch/bearing.