JP2011117348A - Oil supply timing determining device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil sensing device capable of determining properly the oil supply timing in compliance with the degree of deterioration of the oil even if one used commonly and mounted on vehicles having different types of engines. <P>SOLUTION: The oil supply timing determining device 1 is equipped with an oil tank 2, a light projecting part 7, a light receiving part 8, and a supply timing determining part 9, wherein the oil tank 2 is furnished internally with a storage chamber 4 to store the oil 6. In the oil 6 a prescribed fluorescent substance is included, which is excited with the light having a first wave-length, and when excited, emits light with a second wave-length. The projecting part 7 projects light with first wave-length, while the receiving part 8 receives the light with second wave-length. The supply timing determining part 9 determines that it is the time to supply the oil when the intensity of the light with second wave-length received by the receiving part 8 is less than the prescribed threshold. The prescribed threshold is set to the intensity of the light with second wave-length received by the receiving part 8 when the degree of deterioration of the oil 6 is the prescribed degree in the condition that the oil 6 is stored in a region containing the prescribed region 5 in the storage chamber 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an oil supply timing determination device that determines the supply timing of engine oil.

  Japanese Unexamined Patent Publication No. 2009-31068 describes an engine oil detection device. The engine oil detection device includes a sensor that detects an in-cylinder pressure, a crank angle, and a cooling water temperature of the internal combustion engine, respectively, and an engine oil deterioration degree calculation unit. The engine oil deterioration degree calculating means calculates the engine oil deterioration degree based on the in-cylinder pressure of the internal combustion engine, the crank angle, and the coolant temperature detected by the sensor.

JP 2009-31068 A

  However, the engine oil detection device disclosed in Japanese Patent Application Laid-Open No. 2009-31068 calculates a degree of deterioration of engine oil based on the in-cylinder pressure, crank angle, and cooling water temperature detected by the engine (internal combustion engine). It cannot be installed in common with vehicles equipped with other engines.

  The present invention has been made in view of the above circumstances, and even when it is mounted in common on vehicles of different engine types, the oil supply timing according to the degree of oil deterioration is accurately determined. An object of the present invention is to provide an oil detection device that can perform the above-described operation.

  In order to achieve the above object, an oil supply timing determination device of the present invention includes a container, an irradiation means, a light receiving means, and a supply timing determination means.

  A container forms the storage chamber which stores oil inside. The irradiating means irradiates a predetermined region of the storage chamber with light having the first wavelength. The light receiving means is disposed toward a predetermined region and receives light of the second wavelength. The supply timing determination unit determines that it is the oil supply timing when the intensity of the light of the second wavelength received by the light receiving unit is less than a predetermined threshold.

  The first wavelength is set to the wavelength of light that excites a predetermined phosphor. The second wavelength is set to the wavelength of the light emitted from the predetermined phosphor excited by the light of the first wavelength.

  The predetermined threshold is the second wavelength received by the light receiving means when the degree of deterioration of the oil is a predetermined level in a state where the oil mixed with the predetermined phosphor is stored in an area including the predetermined area of the storage chamber. Set to light intensity.

  The oil is, for example, engine oil. When the engine oil stored in the storage chamber is circulated and supplied to the engine and used for lubrication, the degree of deterioration gradually increases and the degree of permeability gradually decreases due to soot and sludge generated by combustion.

  In the above configuration, when the oil mixed with the predetermined phosphor is stored in a region including the predetermined region of the storage chamber, and the degree of deterioration of the oil exceeds a predetermined level, the permeability of the oil existing in the predetermined region is reduced. Since the degree is low, the phosphor mixed in the oil is difficult to be excited, and even when the phosphor is excited, the light intensity decreases with the light receiving means. For this reason, the intensity of the light of the second wavelength received by the light receiving unit becomes less than the predetermined threshold value, and the supply timing determination unit determines that it is the oil supply timing.

  Further, when the oil mixed with the predetermined phosphor is stored in a region including the predetermined region of the storage chamber, and the degree of deterioration of the oil is not more than the predetermined level, the degree of permeability of the oil existing in the predetermined region is high. Therefore, the phosphor mixed in the oil is strongly excited. For this reason, the intensity of the light of the second wavelength received by the light receiving unit is equal to or greater than a predetermined threshold, and the supply timing determination unit determines that it is not the oil supply timing.

  In addition, since the degree of oil deterioration is not directly detected based on the state of other devices, but directly based on the state of oil, the degree of oil deterioration must be detected accurately. Can do.

  In addition, since the oil supply timing is determined based on the state of oil, even if the oil supply timing determination device is commonly installed between vehicles of different engine types, the oil supply timing according to the degree of oil deterioration Can be determined accurately.

  When it is determined that the oil supply timing is reached, the degree of deterioration of the oil stored in the storage chamber exceeds a predetermined level, so the user replaces the oil whose deterioration level exceeds the predetermined level with new oil. What is necessary is just to supply.

  Further, the predetermined region of the storage chamber may be a region including the upper end portion of the side surface of the predetermined amount of oil stored in the storage chamber.

  Here, for example, when engine oil is stored in the storage chamber as oil, and the engine oil is circulated and supplied to the engine and used for lubrication, the degree of permeability gradually decreases as the degree of deterioration gradually increases. In addition to doing, the amount gradually decreases.

  The predetermined amount of oil is set to a minimum amount necessary for lubrication in a configuration in which oil is used for lubrication, for example.

  In the above configuration, when the oil mixed with the predetermined phosphor is stored in the storage chamber, the degree of deterioration of the oil exceeds the predetermined level, and the oil capacity is equal to or larger than the predetermined amount, the oil is present in the predetermined region. However, since the degree of oil permeability is low, the phosphor mixed in the oil is difficult to be excited, and the intensity of light between the light receiving means is reduced even when the phosphor is excited. For this reason, the intensity of the light of the second wavelength received by the light receiving unit becomes less than the predetermined threshold value, and the supply timing determination unit determines that it is the oil supply timing.

  Further, when the oil mixed with the predetermined phosphor is stored in the storage chamber, the degree of deterioration of the oil is not more than a predetermined degree and the capacity of the oil is not less than the predetermined amount, the oil exists in the predetermined area and the oil And the phosphor mixed in the oil existing in the predetermined region is strongly excited. For this reason, the intensity of the light of the second wavelength received by the light receiving unit is equal to or greater than a predetermined threshold, and the supply timing determination unit determines that it is not the oil supply timing.

  In addition, if the oil mixed with the predetermined phosphor is stored in the storage chamber, and the degree of deterioration of the oil is equal to or less than the predetermined level, the oil does not exist in the predetermined region when the oil capacity is less than the predetermined amount. For this reason, the intensity of the light of the second wavelength received by the light receiving unit becomes less than the predetermined threshold value, and the supply timing determination unit determines that it is the oil supply timing.

  In this way, by setting the location where it is possible to detect whether or not oil of a predetermined amount or more is present in the predetermined region, it is possible to detect the degree and amount of oil deterioration at the same time. It can be determined that it is the oil supply timing when the oil exceeding the predetermined degree is stored in the storage chamber for a predetermined amount or more, and less than the predetermined amount of oil is stored even if the deterioration degree is the predetermined degree or less. When it is stored in the chamber, it can be determined that it is the oil supply time.

  Also, since the degree and amount of oil deterioration are not detected indirectly based on the state of other devices or the distance traveled, but directly based on the state of oil, the degree of oil deterioration or The amount can be detected accurately.

  In addition, since the oil supply timing is determined based on the state of the oil, even if the oil supply timing determination device is shared between vehicles of different engine types, the oil supply timing is determined according to the amount of oil and the degree of deterioration of the oil. The oil supply timing can be accurately determined.

  When it is determined that it is the oil supply timing, the degree of deterioration of the oil stored in the storage chamber exceeds a predetermined level or the amount of oil has decreased below a predetermined level. New oil may be supplied instead of oil exceeding the predetermined degree, or new oil may be supplied in addition to the oil whose degree of deterioration is equal to or less than the predetermined degree and the amount is reduced below the predetermined amount.

  Further, the oil supply timing determination device may be provided in a vehicle provided with a power supply means, an engine, and a key switch. The power supply means can be set to a power supply state for supplying power to at least the oil supply timing determination device. The engine is circulated and supplied with the oil stored in the storage chamber in the driving state. The key switch can be set to a drive preparation position that sets the power supply means to the power supply state and allows the engine to start driving. The irradiating unit may irradiate the predetermined region with the light having the first wavelength when the key switch is set to the drive preparation position.

  In the above configuration, when the key switch is set at the driving preparation position, the light receiving unit receives the light of the second wavelength by irradiating the predetermined region with the light of the first wavelength, and the light receiving unit. Determines whether or not the supply timing determination means is the oil supply timing based on the intensity of the light of the second wavelength received. Here, since the oil stored in the storage chamber is in a state before being circulated and supplied to the engine when the key switch is in the drive preparation position, the amount of oil stored in the storage chamber varies little.

  Therefore, the exact amount of oil stored in the storage chamber can be detected.

  In addition, when the supply timing determination unit determines that it is the oil supply timing, a notification unit that notifies the user of information indicating the oil supply timing may be provided.

  In the above configuration, since the oil supply timing is notified to the user (for example, the driver of the vehicle), the user can supply new oil to the storage chamber when notified.

  In addition, in the configuration in which it is determined whether or not it is the oil supply time when the key switch is set at the drive preparation position, the user is notified whether or not it is the oil supply time before the operation. The oil shortage inside can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, even if it mounts in common with the vehicle from which an engine type differs, it can determine appropriately the oil supply time according to the deterioration degree of oil.

It is a mimetic diagram of vehicles provided with an oil supply time judging device concerning this embodiment. It is a block diagram which shows the electric constitution of the vehicle of FIG. FIG. 2 is a schematic cross-sectional view of the oil supply timing determination device of FIG. 1. FIG. 2 is a schematic cross-sectional view of a principal part showing a state in which a predetermined amount or more of oil having a degree of deterioration equal to or less than a predetermined degree is stored in a storage chamber of the oil supply timing determination device of FIG. 1. FIG. 2 is a schematic cross-sectional view showing a state where a predetermined amount or more of oil having a degree of deterioration exceeding a predetermined degree is stored in a storage chamber of the oil supply timing determination device of FIG. 1. FIG. 2 is a schematic cross-sectional view of a principal part showing a state where less than a predetermined amount of oil having a predetermined degree of deterioration is stored in a storage chamber of the oil supply timing determination device of FIG. 1. It is a flowchart which shows the process performed in the vehicle of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic diagram of a vehicle provided with an oil supply timing determination device according to the present embodiment, FIG. 2 is a block diagram showing an electrical configuration of the vehicle of FIG. 1, and FIG. 3 is an oil supply timing of FIG. FIG. 4 to FIG. 6 are cross-sectional schematic views showing the state of oil in the oil supply timing determination device of FIG. 1, and FIG. 7 is a diagram illustrating a process executed in the vehicle of FIG. 1. It is a flowchart to show.

  As shown in FIGS. 1 to 3, the oil supply timing determination device 1 according to the present embodiment includes an oil tank 2, an irradiation unit 7, a light receiving unit 8, and a supply timing determination unit 9, and is provided in a vehicle 10. In the present embodiment, the vehicle 10 is a cab overtrack having a cab 16 and includes an engine 12 as a drive source and a battery (power supply means) 11 as a power supply source. A light shielding space 17 in which light from outside the vehicle is blocked in a normal state where the cab 16 is not tilted up is formed below the cab 16 and in the vicinity of the engine 12.

  The oil tank 2 constitutes a container and is fixed to a side member (not shown) in a light shielding space 17. The oil tank 2 has a permeable window 3 and an oil gauge 30, and forms a storage chamber 4 for storing oil 6 therein. The permeable window 3 is provided at a portion facing the predetermined region 5 of the storage chamber 4 and is a permeable glass portion. Here, the predetermined region 5 of the storage chamber 4 is a region including the upper end portion of the side surface of the predetermined amount of oil 6 stored in the storage chamber 4. In the present embodiment, the predetermined amount of the oil 6 is set to the minimum amount (indicated by a one-dot chain line in FIG. 3) necessary for lubricating the engine 12. The oil gauge 30 extends from the upper side to the bottom of the storage chamber 4 and can be inserted and removed from the storage chamber 4. A person who performs maintenance such as a driver can extract the oil gauge 30 from the storage chamber 4 with the cab 16 tilted up, and the degree of deterioration of the oil 6 attached to the oil gauge 30 extracted from the storage chamber 4 Etc. can be confirmed.

  The oil 6 stored in the storage chamber 4 is engine oil mixed with a predetermined phosphor. When the engine 12 is driven, it is circulated and supplied from the storage chamber 4 to the engine 12 to lubricate the engine 12. When the oil 6 stored in the storage chamber 4 is circulated and supplied to the engine 12 and used for lubrication, the degree of permeability gradually decreases as the degree of deterioration gradually increases due to soot and sludge generated by combustion. Along with this, the amount gradually decreases. The predetermined phosphor is excited by light of the first wavelength, and emits light of the second wavelength when excited by the light of the first wavelength.

  The irradiation unit 7 constitutes an irradiation unit, which is an LED in this embodiment, is provided outside the oil tank 2 in the light shielding space 17, and has a first wavelength to the predetermined region 5 of the storage chamber 4 through the transmissive window 3. Irradiate light. In addition, the light which the irradiation part 7 irradiates should just be the light which contains a 1st wavelength and does not contain a 2nd wavelength. In this embodiment, the irradiation unit 7 irradiates the predetermined region 5 of the storage chamber 4 when the vehicle 10 is powered on.

  The light receiving unit 8 constitutes a light receiving unit, and is disposed in the light shielding space 17 from the outside of the oil tank 2 through the transmissive window 3 toward the predetermined region 5. The light receiving unit 8 includes a filter that transmits light having the second wavelength and blocks light having the first wavelength, and receives light having the second wavelength. The second wavelength is set to the wavelength of the light emitted from the predetermined phosphor excited by the light of the first wavelength.

  The supply timing determination unit 9 constitutes supply timing determination means, and determines that it is the oil supply timing when the intensity of the second wavelength light received by the light receiving unit 8 is less than a predetermined threshold. The supply timing determination unit 9 determines that it is not the oil supply timing when the intensity of the second wavelength light received by the light receiving unit 8 is equal to or greater than a predetermined threshold. The predetermined threshold value is a value that the light receiving means receives when the degree of deterioration of the oil 6 is a predetermined degree in a state where the oil 6 mixed with the predetermined phosphor is stored in an area including the predetermined area 5 of the storage chamber 4. The intensity of light having a wavelength of 2 is set.

The vehicle 10 includes a key switch 13, a notification display unit 14, and a notification control unit 15. ,
The key switch 13 is arranged in a cabin in the cab 16 and can be set to an accessory position (drive preparation position) by rotating the key in one direction with the key inserted. The ignition start position is reached by rotating in one direction. When the key switch 13 is set to the accessory position, the battery 11 supplies power to the electric system of the vehicle 10. Further, when the key switch 13 is set to the ignition start position, the engine 12 starts to be driven.

  The notification display unit 14 constitutes a notification unit, has a lamp, and is provided on the instrument panel in front of the driver's seat in the cab 16. The notification display unit 14 notifies the driver (user) of information indicating that it is the supply time of the oil 6 when the lamp is turned on. The notification control unit 15 turns off the lamp of the notification display unit 14 in a normal state. Further, the notification control unit 15 turns on the lamp of the notification display unit 14 by applying a predetermined voltage to the lamp of the notification display unit 14 when the supply timing determination unit 9 determines that it is the oil supply timing.

  Next, the process which the oil supply timing determination apparatus 1 performs according to FIGS. 4-6 is demonstrated.

  In FIG. 4, a predetermined amount or more of oil 6 having a degree of deterioration equal to or less than a predetermined level is stored in the storage chamber 4. For this reason, when the irradiation unit 7 emits light of the first wavelength, the oil 6 exists in the predetermined region 5 and the degree of permeability of the oil 6 is high, and the fluorescence mixed in the oil 6 existing in the predetermined region 5 The body is strongly excited. For this reason, the intensity of the light of the second wavelength received by the light receiving unit is equal to or greater than a predetermined threshold value, and it is determined that the supply timing determination 9 is not the oil supply timing.

  In FIG. 5, a predetermined amount or more of oil 6 having a degree of deterioration exceeding a predetermined level is stored in the storage chamber 4. For this reason, when the irradiation part 7 irradiates the light of the 1st wavelength, since the oil 6 exists in the predetermined area | region 5, but the transparency of the oil 6 is low, the fluorescent substance mixed in the oil 6 is hard to be excited. Even if the phosphor is excited, the intensity of light with respect to the light receiving means decreases. For this reason, the intensity of the light of the second wavelength received by the light receiving unit becomes less than a predetermined threshold value, and the supply timing determination unit 9 determines that it is the oil supply timing.

  In FIG. 6, less than a predetermined amount of oil 6 having a degree of deterioration equal to or less than a predetermined level is stored in the storage chamber 4. For this reason, when the irradiation part 7 irradiates light of the first wavelength, the oil 6 does not exist in the predetermined region 5. For this reason, the intensity of the light of the second wavelength received by the light receiving unit becomes less than a predetermined threshold value, and the supply timing determination unit 9 determines that it is the oil supply timing.

  Next, processing executed in the vehicle 10 equipped with the oil supply timing determination device 1 of the present invention will be described according to the flowchart shown in FIG.

  This process is executed when the key switch 13 is set to the accessory position and the battery 11 is turned on to the vehicle 10.

  First, in step S1, the irradiation unit 7 emits light of the first wavelength, and the process proceeds to step S2.

  In step S <b> 2, the supply timing determination unit 9 determines whether the intensity of the second wavelength light received by the light receiving unit 8 is less than a predetermined threshold, and the second wavelength received by the light receiving unit 8. When the light intensity is less than the predetermined threshold (step S2: YES), it is determined that it is the oil supply time (step S3), and the process proceeds to step S5. When the intensity of the second wavelength light received by the light receiving unit 8 is equal to or greater than a predetermined threshold (step S2: NO), it is determined that it is not the oil supply time (step S4), and the irradiation unit 7 performs irradiation. The process ends (step S6).

  In step S5, the notification control unit 15 turns on the lamp of the notification display unit 14, ends the irradiation of the irradiation unit 7 (step S6), and ends the present process.

  Next, a modification of the oil supply timing determination device 1 will be described.

  In the present embodiment, the irradiating unit 7 outputs light in the horizontal direction and irradiates the predetermined area 5. However, the present invention is not limited to this, and outputs light having the first frequency in a direction other than the horizontal direction. The structure which irradiates may be sufficient.

  In the present embodiment, the irradiation unit 7 irradiates the predetermined region 5 from the outside of the oil tank 2 through the permeable window 3 of the oil tank 2, but is not limited thereto, and is disposed, for example, above the storage chamber 4. The storage area 4 may irradiate the predetermined area 5.

  Moreover, in this embodiment, although the irradiation part 7 is LED, if the light which contains a 1st wavelength and does not contain a 2nd wavelength can be irradiated, it will not restrict to this.

  Further, in the present embodiment, the light receiving unit 8 is arranged from the outside of the oil tank 2 toward the predetermined region 5 through the transmissive window 3. The structure which is arrange | positioned and was fixed inside the oil tank 2 may be sufficient.

  Moreover, in this embodiment, although only the permeable window 3 is permeable among the oil tanks 2, it is not restricted to this, For example, you may comprise the whole oil tank 2 permeable.

  Further, in the present embodiment, the lamp of the notification display unit 14 is turned on to notify the driver of information indicating that it is the supply time of the oil 6. However, the present invention is not limited to this. Information indicating that it is the supply time of the oil 6 may be notified to the driver.

  Moreover, although the oil supply timing determination apparatus 1 of this embodiment is mounted in the vehicle 10, it is not restricted to this, For example, oil is stored in order to store lubricating oil for lubricating a cutting device, a power generation device, a ship engine, etc. A supply time determination device 1 may be provided.

  In the present embodiment, the oil 6 in which the predetermined phosphor is mixed in advance is stored in the storage chamber 4. However, the present invention is not limited to this. For example, the oil 6 in which the predetermined phosphor is not mixed is stored in the storage chamber 4. The oil may be stored and the oil 6 and the one containing a predetermined phosphor may be mixed. Specifically, when the oil supply timing determination device 1 is provided to lubricate a power generator or a marine engine that uses kerosene or A heavy oil containing phosphorous coumarin as fuel, such fuel (with a small amount) And the oil 6 may be mixed.

  As described above, in the present embodiment, the oil 6 mixed with a predetermined phosphor is stored in the storage chamber 4, the degree of deterioration of the oil 6 exceeds a predetermined degree, and the capacity of the oil 6 is a predetermined amount. When the above is true, the oil 6 is present in the predetermined region 5 but the degree of permeability of the oil 6 is low, so that the phosphor mixed in the oil 6 is difficult to be excited, and even if the phosphor is excited, The light intensity decreases between the two. For this reason, the intensity of the light of the second wavelength received by the light receiving unit becomes less than a predetermined threshold value, and the supply timing determination unit 9 determines that it is the oil supply timing.

  In addition, when the oil 6 mixed with a predetermined phosphor is stored in the storage chamber 4 and the degree of deterioration of the oil 6 is not more than a predetermined level and the capacity of the oil 6 is not less than a predetermined amount, the oil is stored in the predetermined region 5. 6 and the permeability of the oil 6 is high, and the phosphor mixed in the oil 6 existing in the predetermined region 5 is strongly excited. For this reason, the intensity of the light of the second wavelength received by the light receiving unit is equal to or greater than a predetermined threshold, and the supply timing determination unit 9 determines that it is not the oil supply timing.

  Further, when the oil 6 mixed with a predetermined phosphor is stored in the storage chamber 4 and the capacity of the oil 6 is less than a predetermined amount even if the degree of deterioration of the oil 6 is not more than a predetermined level, the oil 6 is predetermined. It does not exist in area 5. For this reason, the intensity of the light of the second wavelength received by the light receiving unit becomes less than a predetermined threshold value, and the supply timing determination unit 9 determines that it is the oil supply timing.

  Thus, by setting the location where it is possible to detect whether or not the oil 6 of a predetermined amount or more exists in the predetermined region 5, it is possible to detect the deterioration degree and amount of the oil 6 at the same time. It is possible to determine that it is the oil supply timing when the oil 6 whose deterioration degree exceeds a predetermined degree is stored in the storage chamber 4 for a predetermined amount or more, and even if the deterioration degree is equal to or less than the predetermined degree, a predetermined amount When less than 6 of oil 6 is stored in the storage chamber 4, it can be determined that it is the oil supply time.

  In addition, since the degree and amount of deterioration of the oil 6 are not detected indirectly based on the state of other devices or the distance traveled, but directly based on the state of the oil 6, The degree and amount of deterioration can be accurately detected.

  Further, in order to determine the oil supply time based on the state of the oil 6, even if the oil supply time determination device 1 is mounted between different vehicles, the oil 6 corresponding to a decrease in the amount of the oil 6 or a deterioration of the oil 6 is obtained. Can be accurately determined.

  Further, when the key switch 13 is set to the accessory position, the irradiating unit 7 irradiates the predetermined region 5 with the first wavelength light, so that the light receiving unit 8 receives the second wavelength light, and receives the light. Based on the intensity of the second wavelength light received by the unit 8, the supply timing determination unit 9 determines whether or not it is the oil supply timing. Here, when the key switch 13 is in the accessory position, since the oil 6 stored in the storage chamber 4 is in a state before being circulated and supplied to the engine 12, the amount of oil 6 stored in the storage chamber 4 varies. Few.

  Therefore, the exact amount of oil 6 stored in the storage chamber 4 can be detected.

  Further, since the driver is notified of the supply timing of the oil 6, the driver can supply new oil 6 to the storage chamber 4 when notified. Specifically, when the driver is informed that the oil supply timing is reached by turning on the notification display, the degree of deterioration of the oil 6 stored in the storage chamber 4 exceeds a predetermined level or the oil 6 The amount has dropped below a predetermined amount. Therefore, the driver pulls out the oil gauge 30 from the storage chamber 4 with the cab 16 tilted up, confirms the degree of deterioration of the oil 6 adhering to the extracted oil gauge 30, and the degree of deterioration of the oil 6 is high. In this case, in place of the oil 6 already stored in the storage chamber 4, new oil 6 is supplied. When the degree of deterioration of the oil 6 is low, in addition to the oil 6 already stored in the storage chamber 4 New oil 6 may be supplied.

  When the driver 16 is informed that it is the oil supply time by turning on the notification display by making the predetermined region 5 visible from the transmissive window 3 with the cab 16 tilted up. By visually observing the predetermined area 5 from the transmissive window 3, it may be visually confirmed whether or not the oil 6 is present in the predetermined area 5. In this case, when the oil 6 is present in the predetermined area 5, it is notified that the degree of deterioration has exceeded the predetermined degree, so that new oil 6 is supplied instead of the oil 6 already stored in the storage chamber 4. In addition, when the oil 6 does not exist in the predetermined region 5, it is notified that the degree of deterioration is equal to or less than the predetermined degree, so that new oil is added to the oil 6 already stored in the storage chamber 4. 6 may be supplied.

  In addition, when the key switch 13 is set to the accessory position, it is determined whether or not it is the oil supply time, so that the driver is notified before the operation whether or not the oil supply time is reached. Therefore, oil shortage during operation can be prevented.

  As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the discussion and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

1: Oil supply timing determination device 2: Oil tank (container)
3: Permeable window 4: Storage chamber 5: Predetermined area 6: Oil 7: Irradiation part (irradiation means)
8: Light receiving part (light receiving means)
9: Supply time determination unit (supply time determination means)
10: Vehicle 11: Battery (power supply means)
12: Engine 13: Key switch 14: Notification display section (notification means)
15: Notification control unit

Claims (4)

A container that internally forms a storage chamber for storing oil;
Irradiating means for irradiating light of a first wavelength to a predetermined region of the storage chamber;
A light receiving means disposed toward the predetermined region and receiving light of a second wavelength;
Supply time determination means for determining that it is oil supply time when the intensity of the light of the second wavelength received by the light receiving means is less than a predetermined threshold,
The first wavelength is set to a wavelength of light that excites a predetermined phosphor,
The second wavelength is set to a wavelength of light emitted from the predetermined phosphor excited by the light of the first wavelength,
The predetermined threshold is determined when the light receiving means receives light when the degree of deterioration of the oil is a predetermined level in a state where the oil mixed with the predetermined phosphor is stored in an area including the predetermined area of the storage chamber. The oil supply timing determination device is set to the intensity of the light having the second wavelength. The oil supply timing determination device according to claim 1,
The predetermined area of the storage chamber is an area including an upper end portion of a side surface of a predetermined amount of oil stored in the storage chamber. The oil supply timing determination device according to claim 1 or 2,
The oil supply timing determination device includes at least a power supply means that can be set to a power supply state for supplying power to the oil supply timing determination device, and an engine that circulates and supplies oil stored in the storage chamber in a driving state. A key switch that can be set to a drive preparation position that sets the power supply means to the power supply state and allows the engine to start driving.
The irradiating means irradiates the predetermined region with light of the first wavelength when the key switch is set at the drive preparation position. The oil supply timing determination device according to claim 1, wherein
Oil supply time determination characterized by comprising: a notification means for notifying a user of information indicating oil supply time when the supply time determination means determines that it is the oil supply time. apparatus.

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