US 11,754,030 B1
Apparatus and method for optimizing engine restarts
Jason Hoon Lee, Ann Arbor, MI (US); Jinho Ha, Seoul (KR); Justin Holmer, Superior Township, MI (US); and Yong Sun, Superior Township, MI (US)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Jul. 21, 2022, as Appl. No. 17/870,027.
Int. Cl. F02N 11/08 (2006.01)
CPC F02N 11/0822 (2013.01) [F02N 2200/102 (2013.01); F02N 2200/123 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system, comprising:
an engine to power a vehicle;
a brake pedal sensor configured to detect force applied at a brake pedal; and
a controller configured to shut off the engine when a vehicle stops during an Idle Stop and Go (ISG) operation, the controller communicatively coupled to the engine and the brake pedal sensor, the controller further configured to:
detect force satisfying a first threshold at the brake pedal based on the brake pedal sensor and the vehicle being stopped;
in response to detecting the vehicle being stopped, operate the engine to shut off during the ISG operation;
detect a driving condition indicating that the engine is required to be on;
operate the engine to turn on based on the driving condition;
detect force satisfying a second threshold at the brake pedal based on the brake pedal sensor; and
in response to detecting force satisfying the second threshold at the brake pedal based on the brake pedal sensor, operate the engine to maintain an engine-off state.