Electro-hydraulic circuits incorporating dual pumps for improved clutch fill times, transmissions and vehicles incorporating the same, and methods associated therewith

A vehicle comprising:

• a chassis;
• a plurality of wheels coupled to the chassis;
• and
• a transmission coupled to the chassis including an electro-hydraulic circuit that comprises
• at least one torque-transmitting mechanism selectively engageable in response to one or more fluid pressures applied thereto,
• a first pump to selectively deliver fluid pressure to the at least one torque-transmitting mechanism at a first pressure,
• a second pump to selectively deliver fluid pressure to the at least one torque-transmitting mechanism at a second pressure greater than the first pressure, and
• an electro-hydraulic control system to control delivery of fluid pressure from the first pump and the second pump to the at least one torque-transmitting mechanism in a plurality of operating modes of the transmission,
• wherein the electro-hydraulic control system includes a controller having a processor and memory having instructions stored therein, and wherein the instructions are executable by the processor to cause the processor to (i) direct delivery of fluid pressure at the first pressure from the first pump to the at least one torque-transmitting mechanism during a first phase of a multi-phase transition from one operating mode of the transmission to another operating mode of the transmission and (ii) direct delivery of fluid pressure at the second pressure from the second pump to the at least one torque-transmitting mechanism during a second phase of the multi-phase transition following the first phase, and
• wherein the instructions are executable by the processor to cause the processor to direct exhaustion of at least one clutch during each of the first and second phases of the multi-phase transition.