Control unit for internal combustion engine
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsTakashi Kawabe, Fumiaki Hiraishi
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Abstract
Provided is a control unit (1) for an internal combustion engine (10) including a direct injector (11) directly injecting fuel into a cylinder (20) and a port injector (12) injecting fuel into an intake port (17). The control unit (1) includes an injection volume calculator (5) to calculate a volume of the fuel injected from the direct injector (11), a port injection controller (2) to control a volume of the fuel injected from the port injector (12), an overlap period controller (4) to control an overlap period during which both an intake valve (27) and an exhaust valve (28) are open, and a changer (6) to vary both the volume of the port injection from the port injector (12) and the overlap period based on the volume of the direct injection.
Claims7
A control unit for an internal combustion engine, the engine comprising a direct injector directly injecting fuel into a cylinder and a port injector injecting fuel into an intake port of the cylinder, the control unit comprising:
- an injection volume calculator to calculate a direct injection volume indicating a volume of the fuel injected from the direct injector;
- a port injection controller to control a port injection volume indicating a volume of the fuel injected from the port injector;
- an overlap period controller to control an overlap period during which both an intake valve and an exhaust valve of the cylinder are open;
- and
- a changer to vary both the port injection volume and the overlap period based on the direct injection volume.
Dependencies are inferred from the claim text.