US 12,331,880 B2
Systems and method for controlling lubrication
Srinarayanprasaadh Srinivasaraghavan, Palatine, IL (US)
Assigned to International Engine Intellectual Property Company, LLC, Lisle, IL (US)
Filed by International Engine Intellectual Property Company, LLC, Lisle, IL (US)
Filed on Nov. 27, 2023, as Appl. No. 18/519,398.
Prior Publication US 2025/0172243 A1, May 29, 2025
Int. Cl. F01M 5/00 (2006.01); F16N 29/02 (2006.01)
CPC F16N 29/02 (2013.01) [F16N 2250/04 (2013.01); F16N 2250/08 (2013.01); F16N 2270/52 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A system for controlling lubrication, the system comprising:
a temperature control module that controls temperature for a lubricant in a vehicle;
a pressure control module that controls pressure for the lubricant in the vehicle; and
a lubrication controller operatively coupled to the temperature control module and the pressure control module, wherein the lubrication controller:
receives a temperature from at least one temperature sensor and a pressure from at least one pressure sensor;
determines a viscosity of the lubricant in the vehicle using the temperature, the pressure, and a pressure-temperature-viscosity correlation;
performs a comparison to determine whether the viscosity is within a predetermined viscosity range or whether the viscosity differs from a predetermined value;
based on the comparison, sends a temperature control signal to the temperature control module, and responsive to the temperature control signal, the temperature control module modifies or maintains the temperature of the lubricant to control lubrication; and
sends a pressure control signal to the pressure control module, and responsive to the pressure control signal, the pressure control module modifies or maintains the pressure of the lubricant to control lubrication.