Method and arrangement for reading out data of a fuel metering system

• US 20040249553A1
• Filed: 04/29/2004
• Published: 12/09/2004
• Est. Priority Date: 10/30/2001
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Liskow, Uwe
• Application Number:
  US10/494,226
• Publication Number:
  US 20040249553A1
• Time in Patent Office: Days
• US Class Current: 701/104
• CPC Class Codes: F02D 2200/1015 Engines misfires
• CPC Class Codes: F02D 41/0085 Balancing of cylinder outputs, e.g. speed, torque or air-fuel ratio
• CPC Class Codes: F02D 41/1498 measuring engine roughness
• CPC Class Codes: F02D 41/2432 Methods of calibration
• CPC Class Codes: F02D 41/2464 Characteristics of actuators
• CPC Class Codes: F02D 41/2467 for injectors

Abstract

The invention relates to a method for reading out data of a fuel metering system for an internal combustion engine of a motor vehicle, especially of a fuel pump or an injector. Data of the fuel pump and/or of the injector are assigned at least to one electronic component; the data are considered by a control unit of the motor vehicle in the control of the internal combustion engine of the motor vehicle. The control unit includes a cylinder-equalization function.

Claims

1. to 6 (Cancelled).

7. A method for reading out data of a fuel metering system for an internal combustion engine of a motor vehicle, the fuel metering system including a fuel pump and/or injectors, the method comprising the steps of:

assigning data of at least one of said fuel pump and injectors to an electronic component;

causing a control unit to consider said data during the control of said internal combustion engine of said motor vehicle;

providing said control unit with a cylinder-equalization function; and

,

considering said data for a precontrol of the cylinder-equalization function.

8. The method of claim 7, comprising the further step of applying said data to corrections of a characteristic field.

9. The method of claim 7, comprising the further steps of:

reading out said data when said control unit is taken into service; and

,

storing said data in said control unit.

10. The method of claim 7, comprising the further step of manually inputting said data in one or more of the following situations:

(a) for service;

(b) for an exchange of said fuel pump; and

,

(c) for an exchange of one of said injectors.

11. The method of claim 7, further comprising the step of considering said data in a diagnosis routine and/or in a fault routine.

12. An arrangement for reading out data of a fuel metering system for an internal combustion engine of a motor vehicle, the fuel metering system including a fuel pump and/or injectors, the arrangement comprising:

means for assigning data of at least one of said fuel pump and injectors to an electronic component;

means for causing a control unit to consider said data during the control of said internal combustion engine of said motor vehicle;

means for providing said control unit with a cylinder-equalization function; and

,

means for considering said data for a precontrol of the cylinder-equalization function.