US 12,270,350 B2
Engine control apparatus
Katsuya Matsuura, Wako (JP); and Kohtaro Hashimoto, Wako (JP)
Assigned to Honda Motor Co., Ltd., Tokyo (JP)
Filed by Honda Motor Co., Ltd., Tokyo (JP)
Filed on Feb. 26, 2024, as Appl. No. 18/587,431.
Claims priority of application No. 2023-051061 (JP), filed on Mar. 28, 2023.
Prior Publication US 2024/0328368 A1, Oct. 3, 2024
Int. Cl. F02D 19/06 (2006.01); F02D 41/00 (2006.01); F02D 41/14 (2006.01); F02D 41/40 (2006.01); F02M 27/02 (2006.01); F02P 5/15 (2006.01); F02D 41/38 (2006.01)
CPC F02D 19/061 (2013.01) [F02D 19/0634 (2013.01); F02D 19/0649 (2013.01); F02D 19/0689 (2013.01); F02D 41/009 (2013.01); F02D 41/1497 (2013.01); F02D 41/40 (2013.01); F02M 27/02 (2013.01); F02P 5/1502 (2013.01); F02D 2041/389 (2013.01); F02D 2200/0611 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An engine control apparatus, comprising:
an engine including an injector configured to inject fuel into a combustion chamber and an ignition plug configured to ignite an air-fuel mixture of the fuel and air in the combustion chamber; and
a controller configured to control the injector and the ignition plug to switch a combustion mode based on a required torque of the engine, wherein
the fuel is one of gasoline fuel and reformed fuel obtained by reforming a portion of the gasoline fuel into peroxide, wherein
the combustion mode includes:
a spark ignition combustion of the gasoline fuel with ignition;
a first homogenous charge compression ignition combustion of the reformed fuel without ignition;
a second homogenous charge compression ignition combustion of the reformed fuel with ignition; and
a diffusion combustion of the reformed fuel without ignition, wherein the controller controls the injector and the ignition plug:
to switch the combustion mode to the second homogenous charge compression ignition combustion when the required torque is less than a first predetermined value;
to switch the combustion mode to the first homogenous charge compression ignition combustion when the required torque is equal to or more than the first predetermined value and less than a second predetermined value larger than the first predetermined value;
to switch the combustion mode to the spark ignition combustion when the required torque is equal to or more than the second predetermined value and less than a third predetermined value larger than the second predetermined value; and
to switch the combustion mode to the diffusion combustion when the required torque is equal to or more than the third predetermined value.