JP2007262806A - Maintenance timing notice device of construction machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a maintenance timing notice device of a construction machine, easy in storing information in a storage means, and capable of accurately noticing the maintenance timing. <P>SOLUTION: This maintenance timing notice device is composed of a present position recognizing means 1, an actual operation time detecting means 2, the storage means 3, a notice means 4, and a control means 5 outputting a driving signal of the notice means 4 by taking in an output signal of the present position recognizing means 1, the actual operation time detecting means 2 and the storage means 3. The storage means 3 stores respective areas A, B, C, etc., on a map, properties A1, B1, C1, etc., of engine fuel with respective areas, maintenance items A11, A12, B11, B12, C11, C12, etc., and the maintenance timings a, b, c, d, e, f, etc., with respective maintenance items corresponding to the properties of the engine fuel. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a construction machine maintenance time notification device, and more particularly to a construction machine maintenance time notification device in consideration of the properties of engine fuel.

  It is desirable that the construction machine perform maintenance at an appropriate interval so that the predetermined performance can be exhibited over a long period of time. There are many items of maintenance performed on construction machinery. For example, the replacement timing of the fuel filter provided in the engine fuel supply system and the timing of draining the fuel supply pipe constituting the engine fuel supply system As described above, there is an item in which the time when maintenance should be performed is affected depending on the properties of the engine fuel.

  In other words, diesel oil, kerosene, heavy oil, etc., which are the fuel for diesel engines mounted on construction machinery, have the amount of waste, moisture content, sulfur content, etc. Properties are very different. For example, when using fuel with a large amount of dust, if the fuel filter is not replaced earlier than usual, the fuel filter may become clogged and the engine output will decrease, or in the worst case the fuel pump There arises a disadvantage that the movable part or the like is seized. Also, when using fuel with a large amount of moisture, if the piping is not drained early, fuel containing excessive moisture will be blown into the combustion chamber and the engine output will be reduced. There is a problem in that moisture is mixed in the lubricating oil, the lubricating performance is lowered, and the engine piston is seized.

  Conventionally, in order to prevent the occurrence of inconvenience due to the properties of the engine fuel, the actual operating time detecting means for detecting the actual operating time of the engine and the fuel rank for determining the rank of the fuel used in the engine And a predetermined target engine oil change timing set in accordance with the fuel rank determined by the fuel rank determining means, and the corrected new target value is detected by the actual operating time detecting means. There has been proposed an oil change time determination device for a construction machine provided with a change time determination means for determining an oil change time by comparing with an integrated value (for example, see Patent Document 1).

According to the oil change time determination device for a construction machine disclosed in Patent Document 1, it is possible to determine the optimal oil change time according to the properties of the engine fuel being used. There is no damage.
JP 2005-233119 A

  However, in the construction machine oil change timing determination device disclosed in Patent Document 1, the fuel classification determining means includes work classification (hydraulic pump discharge pressure and fuel temperature), environmental classification (atmospheric pressure and external atmospheric pressure), fuel rank, and engine. A fuel rank identification map showing the relationship between the rotation frequency and the engine load factor frequency is registered in advance, and the work classification, environmental classification, engine rotation frequency and engine load factor frequency registered in the map, and work at the time of work Since the rank of the fuel being used is extracted by comparing the classification, the environmental classification, the engine speed frequency, and the engine load factor frequency, each of the different performances is produced when preparing the fuel rank identification map. There is a problem that an enormous number of tests must be performed for each construction machine.

  Further, the oil change time determination device for a construction machine disclosed in Patent Literature 1 changes various parameters stored in the fuel rank identification map in accordance with the actual operating time (aging) of the engine. There is also a problem that the fuel rank identification map must be updated.

  The present invention has been made to solve such deficiencies of the prior art, and an object thereof is to provide a maintenance time notification device for a construction machine that can easily store information in the storage means and can accurately notify the maintenance time. There is to do.

  In order to solve the above problems, the present invention firstly, a current position recognizing means for recognizing the current position of the own vehicle, an actual operating time detecting means for detecting the actual operating time of the engine, and the engine fuel for each region Storage means for storing the maintenance time for each maintenance item according to the properties and the properties of the engine fuel, and notifying the driver or manager for each maintenance item that the actual operation time of the engine has reached the maintenance time The current position information output from the current position recognition means and the area information stored in the storage means are collated to determine the area where the vehicle is present, and associated with the determined area. The maintenance time stored in the storage means is read from the storage means for each maintenance item, and the read maintenance time and the The actual operation time output from the operation time detection means is checked to determine whether the actual operation time has reached the maintenance time, and when it is determined that the operation time has been reached, the drive signal of the notification means is output. And a control means to perform the configuration.

  For example, engine fuel supplied in desert areas has a large amount of dust such as sand particles, engine fuel supplied in the rainforest zone has a high water content, and engine fuel supplied in a certain country has a high sulfur content. In other words, the properties of engine fuel supplied to construction machinery are known as attributes of each region on the earth. In addition, the appropriate maintenance time for each maintenance item according to the nature of the supplied engine fuel has also been found by accumulated experience. Therefore, the storage means stores in advance the characteristics of the engine fuel for each region and the maintenance time for each maintenance item corresponding to the characteristics of the engine fuel, and recognizes the current position on the map of the vehicle by the current position recognition means. Then, if the current position of the vehicle recognized by the current position recognition means is compared with the area information stored in the storage means, the area where the vehicle is present and the engine fuel supplied in the area The property and the maintenance time corresponding to the property of the engine fuel can be read from the storage means for each maintenance item. Further, by comparing the read maintenance time with the actual operation time output from the actual operation time detecting means, it can be determined whether or not the actual operation time has reached the maintenance time. In such a case, by notifying the state by the notification means, it is possible to reliably notify the driver or the manager that the maintenance time has been reached for a specific maintenance item.

  Further, according to the present invention, in the maintenance time notification device for the construction machine of the first configuration, the maintenance item constitutes a replacement time of a fuel filter provided in the fuel supply system of the engine and a fuel supply system of the engine. It is selected from the timing of draining the fuel supply pipe, the timing of grease-up of the engine and the vehicle body, the timing of replacing the engine oil circulating in the engine lubrication system, and the timing of replacing the cooling water circulating in the cooling water circulation system of the engine At least one item was configured.

  If the maintenance time is notified for these maintenance items, the construction machine that is affected by the difference in the properties of the engine fuel used can be appropriately maintained.

  In the construction machine maintenance time notification device of the present invention, the storage means stores the property of the engine fuel for each region and the maintenance time for each maintenance item according to the property of the engine fuel in advance, and recognizes them by the current position recognition device. Since the maintenance time corresponding to the engine fuel property is read from the storage means for each maintenance item based on the current vehicle position, the fuel rank is extracted by comparing the engine rotation state and the hydraulic pump drive state. Compared to the case, creation of information stored in the storage means can be facilitated. Further, since it is not necessary to update the storage information of the storage means according to the aging of the engine, the use can be made convenient from this point.

  Hereinafter, an embodiment of a maintenance time notification device according to the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing a configuration of a maintenance time notification device according to the embodiment, FIG. 2 is a table showing an example of an information map stored in a storage means, and FIG. 3 is a front view of a monitor showing an installation example of notification means FIG. 4 is a flowchart showing the operation of the maintenance time notification device according to the embodiment.

  As shown in FIG. 1, the maintenance time notification device of this example includes a current position recognition means 1, an actual operation time detection means 2, a storage means 3, a notification means 4, the current position recognition means 1, The operation time detection means 2 and the control means 5 that takes in the output signals of the storage means 3 and outputs the drive signals of the notification means 4 are mainly constituted.

  The current position recognizing means 1 recognizes the current position on the map of the own vehicle and can use GPS (Global Positioning System) or the like. When GPS is used as the current position recognizing means 1, the current position on the map of the host vehicle can be recognized by installing the GPS on the vehicle body of the construction machine.

  The actual operation time detection means 2 detects the actual operation time of the engine, and an hour meter or the like can be used.

  As shown in FIG. 2, the storage means 3 includes regions A, B, C,... On the map, engine fuel properties A1, B1, C1,. , A12, B11, B12, C11, C12,... And maintenance timings a, b, c, d, e, f,... For each maintenance item corresponding to the properties of the engine fuel are stored. . Maintenance for each maintenance item corresponding to the properties A1, B1, C1,... Of the engine fuel in each region A, B, C,. Times a, b, c, d, e, f,... Are stored based on data accumulated by testing or research. As the maintenance items A11, A12, B11, B12, C11, C12,..., The replacement time of the fuel filter provided in the engine fuel supply system, the water in the fuel supply pipe constituting the engine fuel supply system, It can be at least one item selected from the time of draining, the time of grease-up of the engine and the vehicle body, the time of replacement of engine oil circulating in the engine lubrication system, and the time of replacement of cooling water circulating in the cooling water circulation system of the engine.

  As the notification means 4, a lamp, a buzzer, a display device, or the like can be used. FIG. 3 is a diagram showing an example of installation of the notification means 4, and shows that the fuel filter lamp 4 a indicates that the fuel filter replacement time has been reached when lit, and that the time for draining the fuel supply pipe has been reached when lit. A drainage lamp 4 b shown is set on the monitor 10 together with the water temperature gauge 11 and the fuel gauge 12. By looking at the lamps 4a and 4b, the driver or the manager can know that the maintenance time has not yet been reached when the lamp is turned off, and can know that the maintenance time has been reached when the lamp is turned on. Therefore, by performing appropriate maintenance according to the lit lamps 4a and 4b, it is possible to prevent a failure of the construction machine and a decrease in the service life. When a display device is used as the notification means 4, various maintenance items can be displayed on the screen, and the maintenance time of the various maintenance items can be appropriately displayed.

  The control means 5 comprises a microcomputer or the like, and stores the current position information output from the current position recognition means 1, the actual operation time information output from the actual operation time detection means 2, and the storage information stored in the storage means 3. The maintenance items A11, A12, B11, B12, C11, C12,... Are determined for each maintenance item A, b, c, d, e, f,. When it is determined that the time has been reached, a drive signal is output to the notification means 4. As the storage means 3, a built-in memory of the control means 5 can be used.

  Hereinafter, based on FIG. 4, operation | movement of the maintenance time notification apparatus which concerns on embodiment is demonstrated. When the control device 5 is activated, the control means 5 fetches the current position information output from the current position recognition means 1 (step S1), and then accesses the storage means 3 to obtain the current position previously fetched. The information is compared with the area information A, B, C,... Stored in the storage means 3 (procedure S2), and the area information corresponding to the current position information previously captured is extracted (procedure S3). Next, the control means 5 sets the maintenance times a, b, c, d, e, f,... Stored in the storage means 3 in association with the extracted area information to the maintenance items A11, A12, B11. , B12, C11, C12,... Are read from the storage means 3 (step S4). Next, the control means 5 takes in the actual operation time output from the actual operation time detection means 2 (procedure S5), and the maintenance timings a, b, c, d, e, read from the storage means 3 in step S4. is compared with the actual operation time captured in step S5, and it is determined whether or not the actual operation time has reached each maintenance timing a, b, c, d, e, f,. (Procedure S6). When it is determined in step S6 that the actual operation time has reached each maintenance time a, b, c, d, e, f,..., The control means 5 outputs a drive signal to the notification means 4 ( In step S7), the driver or the administrator is urged to perform maintenance on a predetermined item. If it is determined in step S6 that the actual operation time has not reached the maintenance times a, b, c, d, e, f,..., The control means 5 returns to step S1 and repeats the above-described procedure. .

  In the construction machine maintenance time notification device of this example, the area information A, B, C,..., Engine fuel property information A1, B1, C1,. The maintenance timings a, b, c, d, e, f,... For each of the maintenance items A11, A12, B11, B12, C11, C12,. Since the maintenance time corresponding to the property of the engine fuel is read from the storage means 3 for each maintenance item based on the current position of the host vehicle recognized by the recognition means 1, the information stored in the storage means 3 is compared with the conventional technique. Creation can be made easy. Further, since it is not necessary to update the storage information of the storage means according to the aging of the engine, the use can be made convenient from this point.

It is a block diagram which shows the structure of the maintenance time notification apparatus which concerns on embodiment. It is a table | surface figure which shows an example of the information map memorize | stored in a memory | storage means. It is a front view of the monitor which shows the example of installation of a notification means. It is a flowchart which shows operation | movement of the maintenance time notification apparatus which concerns on embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Current position recognition means 2 Actual operation time detection means 3 Storage means 4 Notification means 5 Control means 10 Monitor A, B, C, ... Regional information A1, B1, C1, ... Fuel properties A11, A12, B11, B12, C11, C12, ... Maintenance items a, b, c, d, e, f, ... Maintenance time

Claims (2)

Current position recognition means for recognizing the current position of the vehicle;
An actual operating time detecting means for detecting the actual operating time of the engine;
Storage means for storing the property of the engine fuel for each region and the maintenance time for each maintenance item according to the property of the engine fuel;
Notification means for notifying a driver or an administrator for each maintenance item that the actual operation time of the engine has reached the maintenance time;
The current position information output from the current position recognizing means and the area information stored in the storage means are collated to determine the area where the host vehicle is present, and stored in the storage means in association with the determined area. The read maintenance time is read out from the storage unit for each maintenance item, and the read out maintenance time is compared with the actual operation time output from the actual operation time detection unit to determine the actual operation time as the maintenance time. And a control means for outputting a drive signal for the notification means when it is determined whether or not it has been reached. In the construction machine maintenance time notification device according to claim 1,
The maintenance items include a replacement time of a fuel filter provided in the fuel supply system of the engine, a drainage time in a fuel supply pipe constituting the fuel supply system of the engine, a grease-up time of the engine and the vehicle body, and the engine An apparatus for notifying the maintenance time of a construction machine, characterized in that it is at least one item selected from the replacement time of engine oil circulating in the lubrication system and the replacement time of cooling water circulating in the cooling water circulation system of the engine.

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