# US 12,594,926 B2 · System and method for power allocation to high-voltage thermal loads from multiple energy sources in a hybrid powertrain during cold conditions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,594,926 B2 - Document ID: US12594926B2 - Status: Granted - Kind: B2 - Application number: 18/442,439 - Filed: 2024-02-15 - Published: 2025-08-21 - Granted: 2026-04-07 - Earliest claimed: 2024-02-15 - Assignees: Fca US LLC - Applicants: Fca US LLC - Inventors: Rudolf Kharpuri; Venkatasubramanian Sankara Raman - Web page: https://patentgrep.com/patent/US12594926B2 ## CPC - B60W 20/13: in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion - B60W 20/15: Control strategies specially adapted for achieving a particular effect - B60W 10/06: including control of combustion engines - B60W 10/08: including control of electric propulsion units, e.g. motors or generators - B60W 2510/0676: Engine temperature - B60W 2510/242: for electrical energy - Y02T 10/62: Hybrid vehicles - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A powertrain and control method that generates and transfers drive torque to a driveline of a hybrid electric vehicle is provided. The powertrain includes an internal combustion engine (ICE), at least one electric motor powered by a high-voltage battery, an integrated dual charge module (IDCM) and a controller. The controller is configured to: determine whether an external load is connected to the vehicle through the IDCM; determine an available engine-based power; determine whether the available engine-based power is above a threshold to support thermal loads; command power consumption from the high-voltage battery based on a determination that available engine-based power is not above the threshold; command power consumption from the ICE based on a determination that available engine-based power is above the threshold; and command a blending of power between the high-voltage battery and the ICE. ## Claims ### Claim 1 A powertrain that generates and transfers drive torque to a driveline of a hybrid electric vehicle, the powertrain comprising: an internal combustion engine (ICE); at least one electric motor powered by a high-voltage battery; an integrated dual charge module (IDCM); and a controller that controls operation of the powertrain based on operating conditions, wherein the controller is configured to: determine whether an external load is connected to the vehicle through the IDCM; determine an available engine-based power; determine whether the available engine-based power is above a threshold to support thermal loads; command power consumption from the high-voltage battery based on a determination that available engine-based power is not above the threshold; command power consumption from the ICE based on a determination that available engine-based power is above the threshold; and transition to command a blending of power between the high-voltage battery and the ICE. ### Claim 2 (depends on 1) The powertrain of claim 1, wherein the controller is further configured to: determine available engine-based power based upon a coolant temperature of the ICE. ### Claim 3 (depends on 2) The powertrain of claim 2, wherein the controller is further configured to: determine available engine-based power based on a lookup table. ### Claim 4 (depends on 1) The powertrain of claim 1, wherein the controller is further configured to: command power consumption from the ICE based on the determination that available engine-based power is above the threshold; and determine whether minimum power is active for a predetermined time. ### Claim 5 (depends on 1) The powertrain of claim 1, wherein the controller is further configured to command power consumption from the ICE based on a determination that the minimum power has been active for the predetermined time. ### Claim 6 (depends on 5) The powertrain of claim 5, wherein the controller is further configured to: determine whether fuel is out in the vehicle; and command power consumption from high-voltage battery based on a determination that the fuel is out in the vehicle. ### Claim 7 (depends on 6) The powertrain of claim 6, wherein the controller is further configured to: transition and blend power from the ICE to the high-voltage battery. ### Claim 8 (depends on 1) The powertrain of claim 1, further comprising: an electric air compressor (EAC); an electric coolant heater (ECH); and wherein the controller is further configured to allocate power to the EAC and ECH. ### Claim 9 A method for controlling a powertrain that generates and transfers drive torque to a driveline of a hybrid electric vehicle, the powertrain including an internal combustion engine (ICE), and at least one electric motor powered by a high-voltage battery, and an integrated dual charge module (IDCM), the method comprising: determining, at a controller, whether an external load is connected to the vehicle through the IDCM; determining, at the controller, an available engine-based power; determining, at the controller, whether the available engine-based power is above a threshold to support thermal loads; commanding power consumption from the high-voltage battery based on a determination that available engine-based power is not above the threshold; commanding power consumption from the ICE based on a determination that available engine-based power is above the threshold; and transition to commanding a blending of power between the high-voltage battery and the ICE. ### Claim 10 (depends on 9) The method of claim 9, further comprising: determining the available engine-based power based upon a coolant temperature of the ICE. ### Claim 11 (depends on 10) The method of claim 10, further comprising: determining the available engine-based power based on a lookup table. ### Claim 12 (depends on 9) The method of claim 9, further comprising: commanding power consumption from the ICE based on the determination that available engine-based power is above the threshold; and determining whether minimum power is active for a predetermined time. ### Claim 13 (depends on 9) The method of claim 9, further comprising: commanding power consumption from the ICE based on a determination that the minimum power has been active for the predetermined time. ### Claim 14 (depends on 13) The method of claim 13, further comprising: determining whether fuel is out in the vehicle; and commanding power consumption from high-voltage battery based on a determination that the fuel is out in the vehicle. ### Claim 15 (depends on 14) The method of claim 14, further comprising: transitioning and blending power from the ICE to the high-voltage battery. ### Claim 16 (depends on 9) The method of claim 9, further comprising: allocating power to an electric air compressor (EAC) and an electric coolant heater (ECH).