Method for determining whether engine is reusable

Abstract

To provide a method for determining whether an engine is reusable, the method enabling determination of reusability of engine components by a simple method.SOLUTION: The method for determining whether an engine is reusable according to the present invention includes the determination step for determining reusability of engine components. In the determination step, in a case where there is no remaining life data or travel history data, the reusability of the engine components is determined on the basis of the amount of deposit accumulated on an EGR valve and the amounts of soot accumulated and foreign matter attached to an EGR cooler, an injector, and a throttle.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method for determining whether an engine can be reused. [Background technology]

[0002] Patent Document 1 describes an automobile part reuse system that stores information related to the operating state of powertrain parts and calculates a reuse evaluation value, which is an evaluation value of the degree to which the powertrain parts can be reused, based on that information. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-240534 Summary of the Invention [Problem to be solved by the invention]

[0004] The system described in Patent Document 1 cannot evaluate the reusability of parts for which no degradation data exists. For this reason, there has been a demand for a system that can determine the reusability of vehicle parts in a simple manner.

[0005] The present invention has been made in consideration of the above-mentioned problems, and its object is to provide a method for determining whether an engine part can be reused, which is capable of determining whether an engine part can be reused in a simple manner. [Means for solving the problem]

[0006] The method for determining whether an engine can be reused according to the present invention includes a determination step for determining whether an engine part can be reused, and in the absence of remaining life data and driving history data, the determination step determines whether the engine part can be reused based on the amount of deposits accumulated on the EGR valve and the amount of soot accumulated and foreign matter adhered to the EGR cooler, injector, and throttle. [Effects of the Invention]

[0007] According to the method for determining whether an engine can be reused according to the present invention, it is possible to determine whether an engine part can be reused in a simple manner. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a flowchart showing the flow of a method for determining whether an engine can be reused, which is an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a method for determining whether an engine can be reused, which is one embodiment of the present invention, will be described in detail with reference to the drawings.

[0010] Fig. 1 is a flowchart showing the flow of a method for determining whether an engine can be reused, which is one embodiment of the present invention. As shown in Fig. 1, in the method for determining whether an engine can be reused, which is one embodiment of the present invention, first, it is determined whether or not there is estimated data on the remaining lifespan of the engine (step S1). If the result of the determination shows that there is estimated data on the remaining lifespan (step S1: Yes), it is determined whether or not the degree of deterioration of each engine part is below the reuse threshold (step S2). If the result of the determination shows that the degree of deterioration of each part is below the reuse threshold (step S2: Yes), each part of the engine is checked and its performance is inspected (step S3), and it is determined whether or not the performance is higher than a predetermined performance (step S4).

[0011] If the result of the determination is that the performance is higher than the predetermined performance (step S4: Yes), after replacing parts other than those eligible for reuse in the engine (step S5), the engine is determined to be reusable and the compensation rank is set to compensation rank 1 (high quality, assumed to be linked to general users or companies) (step S6).On the other hand, if the performance is lower than the predetermined performance (step S4: No), after an overhaul and inspection of the engine (step S7), the results of the overhaul and inspection are fed back to the reuse technology and design department (step S8).

[0012] On the other hand, if it is determined in the processing of step S1 that there is no remaining life estimation data (step S1: No), it is determined whether or not there is driving history information (step S9). If the determination result shows that there is driving history information (step S9: Yes), it is determined whether or not the driving distance is less than a predetermined distance (step S10). If the determination result shows that the driving distance is less than the predetermined distance (step S10: Yes), each part of the engine is checked and a performance inspection is performed (step S11), and it is determined whether or not the performance is higher than a predetermined performance (step S12).

[0013] If the result of the determination is that the performance is higher than the predetermined performance (step S12: Yes), after replacing parts of the engine other than those eligible for reuse (step S13), the engine is determined to be reusable and the compensation rank is set to compensation rank 2 (medium quality, assumed to be tied to the company) (step S14).On the other hand, if the performance is lower than the predetermined performance (step S12: No), after conducting an overhaul inspection of the engine (step S7), the results of the overhaul inspection are fed back to the reuse technology and design department (step S8).

[0014] On the other hand, if it is determined in the process of step S9 that there is no driving history information (step S9: No) or if it is determined in the process of step S10 that the driving distance is equal to or greater than a predetermined distance (step S10: No), it is determined whether the amount of deposits on the EGR (Exhaust Gas Recirculation) valve is equal to or greater than a predetermined amount (step S15). If the result of the determination is that the amount of deposits is equal to or greater than the predetermined amount (step S15: Yes), all parts of the engine are disassembled (step S21) and the parts are recycled as ineligible for reuse (step S22).

[0015] On the other hand, if the amount of deposits is not equal to or greater than the predetermined amount (step S15: No), it is determined whether the amount of soot accumulated and the amount of foreign matter adhering to the EGR cooler, injector, and throttle are equal to or greater than the predetermined amount (step S16). If the result of the determination is that the amount of soot accumulated and the amount of foreign matter adhering are equal to or greater than the predetermined amount (step S16: Yes), all parts of the engine are disassembled (step S21), and the parts are recycled as ineligible for reuse (step S22).

[0016] On the other hand, if the amount of soot deposition and the amount of foreign matter adhered are not equal to or greater than the predetermined amount (step S16: No), each part of the engine is checked and a performance inspection is performed (step S17), and it is determined whether the performance is higher than the predetermined performance (step S18). If the result of the determination is that the performance is higher than the predetermined performance (step S18: Yes), the engine is determined to be reusable, and the compensation rank is set to compensation rank 3 (low quality, so it is assumed that non-genuine parts will be supplied) (step S20). On the other hand, if the performance is lower than the predetermined performance (step S18: No), the engine is disassembled and inspected (step S7), and the results of the disassembly inspection are fed back to the reuse technology and design department (step S8).

[0017] As is clear from the above description, the method for determining whether an engine can be reused according to one embodiment of the present invention includes a determination step for determining whether the engine can be reused, and in the absence of remaining life data and driving history data, the determination step determines whether the engine can be reused based on the amount of deposits on the EGR valve and the amount of soot and foreign matter adhered to the EGR cooler, injector, and throttle. This allows for a simple method for determining whether engine parts can be reused.

[0018] Although the present invention has been described above as an embodiment, the present invention is not limited to the description and drawings that form part of the disclosure of the present invention. In other words, other embodiments, examples, and operational techniques that can be made by those skilled in the art based on the present invention are all included in the scope of the present invention.

Claims

[Claim 1] a determining step of determining whether the engine can be reused; In the determination step, if there is no remaining life data or running history data, it is determined whether the engine can be reused based on the amount of deposits on the EGR valve and the amount of soot and foreign matter adhered to the EGR cooler, the injector, and the throttle. How to determine whether an engine can be reused.

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