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Method of diagnosing an electric actuator connected to a computer

A technology of electric actuators and computers, applied in the field of data transmission, can solve problems such as identification

Active Publication Date: 2021-06-15
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technique is not sufficient to identify faults that are not known to the computer later, especially after the sale

Method used

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  • Method of diagnosing an electric actuator connected to a computer
  • Method of diagnosing an electric actuator connected to a computer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] exist figure 1 In this case, a motor vehicle 1 is equipped with an internal combustion engine 2 to enable movement of the motor vehicle. The internal combustion engine 2 is not limited to a gasoline engine or a diesel engine.

[0028] The internal combustion engine 2 is equipped with a fuel supply line 3 connecting a fuel tank 4 provided on the motor vehicle 1 with the internal combustion engine 2 . The fuel tank 4 is equipped with a fuel pump 5 adapted to circulate fuel contained inside the fuel tank 4 from the fuel tank to the internal combustion engine 2 .

[0029] The fuel pump 5 includes a diagnostic module 6 and is connected to a computer 7 .

[0030] As shown in Table 1 below, the diagnostic module 6 is arranged to detect a predetermined number of predetermined faults in the operation of the fuel pump 5 , here eight faults represented by D1 to D8 . The diagnostic module 6 is also arranged to assign to each of these faults a signal indicative of the detected fa...

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PUM

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Abstract

The invention relates to a method of diagnosing an electric actuator connected to a computer (7), the actuator comprising a diagnostic module (6) arranged to detect a certain number of faults in the operation of the actuator and to provide for these faults Each fault distribution of each fault represents a detected fault signal, the computer (7) includes a memory (12) and is arranged to record in this memory (12) the fault signal of a certain number of faults of the actuator operation, said certain The number is less than the determined number of faults that the module (6) is able to detect, and, when the module (6) detects a fault not recorded by the computer (7), the module sends a sequence to the computer (7) and the computer stores the sequence in In the memory (12), the sequence follows: the computer (7) provides a recorded fault signal and the computer (7) does not provide a recorded fault signal.

Description

technical field [0001] The present invention relates to data transmission. More specifically, the present invention relates to a method of diagnosing an electric actuator connected to a computer. Background technique [0002] In a vehicle, the computer that controls the engine is connected by control lines to various electric components, such as the module including the fuel pump. Therefore, the computer controls the fuel pump module through control signals transmitted via the control line. In turn, the module is also connected to the computer by a diagnostic line, and the fuel pump module includes a diagnostic unit that detects and transmits a signal indicating a malfunction to the computer. Computers typically include memory in which signals indicative of detected faults are stored. This memory is then read by a diagnostic tool, for example after the sale, allowing the operator to determine the fault of the violation. [0003] However, if the computer does not provide ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/42G07C5/08G06F11/00
CPCG05B23/0264G06F13/42G07C5/085
Inventor 萨米·艾塔布
Owner PEZHO SITROEN AUTOMOBILS SA