US 12,247,506 B2
Systems and methods for providing a heating cycle to an after-treatment system of a vehicle
David Cox, London (GB); David Hesketh, Ingatestone (GB); and Themi Petridis, Bishop's Stortford (GB)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Jul. 14, 2023, as Appl. No. 18/221,969.
Application 18/221,969 is a continuation of application No. 17/242,564, filed on Apr. 28, 2021, granted, now 11,739,671.
Prior Publication US 2024/0011422 A1, Jan. 11, 2024
Int. Cl. F01N 3/20 (2006.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 20/16 (2016.01); B60W 20/40 (2016.01)
CPC F01N 3/2013 (2013.01) [B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 20/16 (2016.01); B60W 20/40 (2013.01); F01N 3/2026 (2013.01); B60W 2510/30 (2013.01); B60W 2710/30 (2013.01); F01N 2240/16 (2013.01); F01N 2900/08 (2013.01); F01N 2900/104 (2013.01); F01N 2900/12 (2013.01); F01N 2900/1602 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of providing a heating cycle for an after-treatment system of a vehicle, the method comprising:
receiving a start trigger;
initiating a pre-charge cycle of a DC-DC converter;
determining a temperature of the after-treatment system after the pre-charge is complete;
in response to determining that the temperature of the after-treatment system is below a threshold temperature and the pre-charge cycle being complete, initiating a heating cycle comprising heating the after-treatment system using a heating element until the after-treatment system reaches the threshold temperature, wherein the aftertreatment system is powered by a high voltage power source;
dynamically modifying, based on an ambient temperature, a minimum required state of charge of the high voltage power source at the end of a drive cycle to enable a subsequent heating cycle of the heating element; and
increasing an amount of charge held in the high voltage power source to meet the minimum allowable state of charge.