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Method and apparatus for preventing engine stall of vehicle

An engine and vehicle technology, applied in mechanical equipment, engine control, machine/engine, etc., to solve problems such as engine stall

Active Publication Date: 2019-10-01
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present disclosure aims to solve the above-mentioned problems in the related art, and one object of the present disclosure is to provide a method for preventing the engine of a vehicle from stalling, and for preventing the engine of the vehicle from stalling. A stalling device that solves the problem of engine stalling when fluctuations have occurred in the output signal of a high-pressure fuel pressure sensor

Method used

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  • Method and apparatus for preventing engine stall of vehicle
  • Method and apparatus for preventing engine stall of vehicle
  • Method and apparatus for preventing engine stall of vehicle

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Embodiment Construction

[0029] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0030] figure 2 is a block diagram illustrating the configuration of an apparatus for preventing engine stall according to a preferred embodiment of the present disclosure.

[0031] The apparatus for preventing engine stall according to the present disclosure is configured to include: a fuel injection device including a high-pressure fuel pump 50, a common rail 60, and an injector 70; an engine control unit 10 for controlling the fuel injection device to prevent engine stall a high-pressure fuel pressure sensor 61 for measuring high-pressure fuel pressure downstream of the high-pressure fuel pump 50 ; and / or a low-pressure fuel pressure sensor 40 for measuring low-pressure fuel pressure upstream of the high-pressure fuel pump 50 .

[0032] First, refer to figure 2 , a fuel supply system of an engine to which the apparatus for preventing engin...

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Abstract

A method and an apparatus for preventing an engine stall of a vehicle. The engine is provided with a fuel injection device for pressurizing fuel stored in a fuel tank by a high-pressure fuel pump to transmit the fuel to a common rail, and injecting the fuel temporarily stored in the common rail into an engine through an injector. The method may include steps of determining whether or not a drift occurs in an output signal of a high-pressure fuel pressure sensor for measuring fuel pressure at a downstream side of the high-pressure fuel pump, and performing a fuel pressure control by replacing ahigh-pressure fuel pressure value with a predetermined pressure value based on the output signal of the high-pressure fuel pressure sensor.

Description

technical field [0001] The present disclosure relates to a method and apparatus for preventing an engine stall of a vehicle, and more particularly, to a method and apparatus for preventing an engine stall of a vehicle when a drift has occurred in an output signal of a high-pressure fuel pressure sensor. equipment. Background technique [0002] A fuel supply system of an engine, in particular, a fuel supply system of a gasoline direct injection (GDI) engine can be classified into a high pressure system and a low pressure system. and figure 1 Similar to the fuel injection device 2 shown, the high-pressure system may include: a high-pressure pump 2a for recompressing the fuel pumped by the low-pressure fuel pump from the high-pressure fuel tank; a fuel filter 2b for filtering the fuel pumped by the high-pressure pump 2a the fuel delivered; the common rail 2c, which is used to maintain the pressure of the high-pressure fuel filtered by the fuel filter 2b, and distributes it to...

Claims

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Application Information

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IPC IPC(8): F02D41/38F02D41/16
CPCF02D41/3836F02D41/16F02D2200/0602F02D41/08F02D2041/224F02D41/3854F02D41/3082F02D41/38F02D2200/101
Inventor 边贞燮具本昌
Owner HYUNDAI MOTOR CO LTD
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