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US 10,968,850 B2Granted
Control device for internal combustion engine having pressure increasing device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakahiro Hirano, Mao Hosoda
Life of this patent
Estimating the term…
Abstract
A control device for an internal combustion engine includes a fuel injector configured to inject fuel, a pressure increasing device that is provided upstream of the feel injector and is configured to increase the pressure of fuel supplied to the fuel injector, and an electronic control unit. The electronic control unit is configured to calculate an actual fuel injection amount based on a difference between a fuel pressure in the fuel injector in a case where the pressure increasing device increases the fuel pressure without fuel injection by the fuel injector and a fuel pressure in the fuel injector in a case where the fuel injector performs fuel injection according to the driving of the pressure increasing device.
Claims15
A control device for an internal combustion engine, the control device comprising:
- a fuel injector configured to inject fuel;
- a pressure increasing device that is provided upstream of the fuel injector and is configured to increase a pressure of fuel supplied to the fuel injector;
- and
- an electronic control unit configured to calculate an actual fuel injection amount based on a difference between a first fuel pressure in the fuel injector when the pressure increasing device increases the fuel pressure without fuel injection by the fuel injector and a second fuel pressure in the fuel injector when the fuel injector performs fuel injection while driving of the pressure increasing device, wherein:
- the electronic control unit is configured to store in advance a stored fuel injection amount that is a fuel injection amount determined based on the pressure of fuel supplied to the pressure increasing device, a fuel injection time of the fuel injector, and a pressure increase time of the pressure increasing device;
- and
- the electronic control unit is configured to correct at least one of the fuel injection time and the pressure increase time using a correction value such that the actual fuel injection amount and the stored fuel injection amount are made close to each other and control the fuel injector based on the corrected fuel injection time or control the pressure increasing device based on the corrected pressure increase time.
4 more elements
A control device for an internal combustion engine, the control device comprising:
- a fuel injector configured to inject fuel;
- a pressure increasing device that is provided upstream of the fuel injector, the pressure increasing device includes a piston, the pressure increasing device configured to increase a pressure of fuel supplied to the fuel injector;
- and
- an electronic control unit configured to calculate an actual fuel injection amount based on a difference between a first fuel pressure in the fuel injector when the pressure increasing device increases the fuel pressure without fuel injection by the fuel injector and a second fuel pressure in the fuel injector when the fuel injector performs fuel injection while driving of the pressure increasing device, wherein:
- the electronic control unit is configured to store in advance a stored fuel injection amount that is a fuel injection amount determined based on the pressure of fuel supplied to the pressure increasing device, a fuel injection time of the fuel injector, and a pressure increase time of the pressure increasing device;
- and
- the electronic control unit is configured to correct at least one of the fuel injection time and the pressure increase time using a correction value such that the actual fuel injection amount and the stored fuel injection amount are made close to each other and control the fuel injector based on the corrected fuel injection time or control the pressure increasing device based on the corrected pressure increase time.
4 more elements
A control device for an internal combustion engine, the control device comprising:
- a fuel injector configured to inject fuel;
- a pressure increasing device that is provided upstream of the fuel injector, the pressure increasing device includes a housing, a piston moveable within the housing, and a spring positioned between the housing and the piston, and the pressure increasing device is configured to increase a pressure of fuel supplied to the fuel injector;
- and
- an electronic control unit configured to calculate an actual fuel injection amount based on a difference between a first fuel pressure in the fuel injector when the pressure increasing device increases the fuel pressure without fuel injection by the fuel injector and a second fuel pressure in the fuel injector when the fuel injector performs fuel injection while driving of the pressure increasing device, wherein:
- the electronic control unit is configured to store in advance a stored fuel injection amount that is a fuel injection amount determined based on the pressure of fuel supplied to the pressure increasing device, a fuel injection time of the fuel injector, and a pressure increase time of the pressure increasing device;
- and
- the electronic control unit is configured to correct at least one of the fuel injection time and the pressure increase time using a correction value such that the actual fuel injection amount and the stored fuel injection amount are made close to each other and control the fuel injector based on the corrected fuel injection time or control the pressure increasing device based on the corrected pressure increase time.
4 more elements
Dependencies are inferred from the claim text.