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US 2020/0018245 A1Published application
Method for controlling low-pressure fuel pump and fuel supply system therefor
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorYong-Sik KIM
Life of this patent
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Abstract
A method of controlling a low-pressure fuel pump may include: identifying a fuel consumption amount of the low-pressure fuel pump in response to a feedforward fuel control; determining a motor driving base duty based on the fuel consumption amount; and identifying a target fuel pressure based on the pressure of fuel.
Claims12
A method of controlling a low-pressure fuel pump, the method comprising:
- identifying a fuel consumption amount of the low-pressure fuel pump in response to a feedforward fuel control;
- determining a motor driving base duty based on the fuel consumption amount;
- and
- identifying a target fuel pressure based on a pressure of fuel.
1 more element
A fuel supply system comprising:
- an engine control unit (ECU);
- a fuel pump controller configured to receive a target fuel pressure from the ECU;
- a low-pressure fuel pump configured to pump out fuel at a low pressure based on a fuel consumption amount as a feedforward control variable;
- a pressure sensor configured to detect a pumping pressure of the low-pressure fuel pump;
- a high-pressure fuel pump configured to receive a flow rate of fuel from the low-pressure fuel pump and to pump out the fuel at a high pressure;
- and
- an injector configured to receive the fuel from the high-pressure fuel pump and to inject the fuel.
4 more elements
Dependencies are inferred from the claim text.