Patent ID: 11867286
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 14:
15. A vehicle comprising;
a heat exchanger;
a transmission configured to transfer power within a powertrain, the transmission having,
a primary fluid circuit,
a secondary fluid circuit configured to (i) divert fluid from the primary fluid circuit and (ii) deliver the fluid to the heat exchanger, and
a valve configured to (i) close to isolate the secondary fluid circuit from the primary fluid circuit, (ii) open to direct fluid from the primary fluid circuit to the secondary fluid circuit, and (iii) transition between partially opened positions to adjust a flow rate of the fluid from the primary fluid circuit to the secondary fluid circuit; and

a controller programmed to,
in response to a temperature of the fluid being outside of a desired range, open the valve to direct the fluid toward the heat exchanger via the secondary fluid circuit,
in response to the temperature of the fluid being within the desired range, close the valve to isolate the fluid from the secondary fluid circuit and the heat exchanger, and
adjust the valve between the partially opened positions based on a temperature of a secondary fluid flowing through the heat exchanger.