Oil Management System

Abstract

To provide an oil management system capable of more appropriately reporting recommendation of oil replacement.SOLUTION: A vehicle control device for an oil management system includes: an actual fuel consumption amount calculation section that calculates an actual fuel consumption amount from completion of oil replacement; an engine traveling distance calculation section that calculates an engine traveling distance on the basis of operation and stop of an engine and a traveling distance after replacement from the completion of the oil replacement; an actual fuel consumption rate calculation section that calculates an actual fuel consumption rate on the basis of the engine traveling distance and the actual fuel consumption amount; a prediction fuel consumption amount calculation section that calculates a prediction fuel consumption amount required for traveling for a replacement distance on the basis of the replacement distance and the prediction fuel consumption rate; a correction section that makes a correction so that the prediction fuel consumption amount becomes smaller when the actual fuel consumption rate becomes the prediction fuel consumption rate or lower; a fuel consumption amount comparison section that compares the actual fuel consumption amount with the prediction fuel consumption amount; and a replacement recommendation instruction section that instructs reporting of the recommendation of the oil replacement to a replacement reporting device when the actual fuel consumption amount reaches the prediction fuel consumption amount.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to oil management systems. [Background technology]

[0002] Patent Document 1 describes a vehicle oil management device that manages the state of oil in a hybrid vehicle that can run using an engine as a power source and a motor as a power source. This vehicle oil management device includes a mileage management unit that can manage the mileage of the hybrid vehicle, an engine management unit that can manage the timing of starting and stopping the engine, and an engine running management unit that can manage the mileage using the engine as a power source out of the mileage managed by the mileage management unit based on the timing of starting and stopping the engine managed by the engine management unit.

[0003] According to the vehicle oil management device disclosed in Patent Document 1, the timing of oil change can be determined based on the distance traveled using the engine as the power source. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-148123 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in vehicles that can generate electricity using the engine as a power source while the vehicle is stopped, the mileage traveled using the engine as a power source may be zero even when the engine is operating, and therefore it is not sufficient to determine when to change the oil based on the mileage traveled using the engine as a power source.

[0006] In view of the above circumstances, at least one embodiment of the present invention has an object to provide an oil management system that can more appropriately notify a recommendation for an oil change. [Means for solving the problem]

[0007] (1) An oil management system according to at least one embodiment of the present invention is an oil management system including an engine control device that detects engine operation and stop, a mileage measurement device that measures a vehicle's mileage, a fuel measurement device that measures the amount of fuel in a fuel tank, an input device for inputting a predicted fuel consumption rate, an oil change completion, and the oil change distance, a vehicle control device, and an oil change notification device that notifies the recommendation of an oil change in response to an instruction from the vehicle control device, wherein the vehicle control device includes an actual fuel consumption calculation unit that calculates an actual fuel consumption amount since the end of the oil change based on a change in the amount of fuel in the fuel tank, and an actual fuel consumption calculation unit that calculates an actual fuel consumption amount since the end of the oil change based on a change in the amount of fuel in the fuel tank. The oil change notification device includes an engine mileage calculation unit that calculates an engine mileage using the engine as a power source based on the mileage after replacement, an actual fuel consumption rate calculation unit that calculates an actual fuel consumption rate based on the engine mileage and the actual fuel consumption, a predicted fuel consumption calculation unit that calculates a predicted fuel consumption required to travel the replacement distance based on the replacement distance and the predicted fuel consumption rate, a correction unit that corrects the predicted fuel consumption to be less when the actual fuel consumption rate is equal to or lower than the predicted fuel consumption rate, a fuel consumption comparison unit that compares the actual fuel consumption with the predicted fuel consumption, and a replacement recommendation instruction unit that instructs the replacement notification device to issue a notification that the oil is recommended to be replaced when the actual fuel consumption reaches the predicted fuel consumption.

[0008] According to the above configuration (1), the actual fuel consumption is compared with the predicted fuel consumption, and when the actual fuel consumption reaches the predicted fuel consumption, the oil change notification device notifies the recommendation of an oil change. Therefore, even in a vehicle that can generate electricity using the engine as a power source while the vehicle is stopped, the recommendation of an oil change can be more appropriately notified.

[0009] (2) In some embodiments, in the configuration of (1) above, the engine control device is capable of detecting the rotational speed of the engine, and the vehicle control device has a first period and a second period consecutive to the first period defined in advance, and accelerates the engine so that the difference between the rotational speed at the start of the first period and the rotational speed at the end of the first period is equal to or greater than the predetermined first rotational speed, and when the rotational speed during the second period is maintained at or greater than the rotational speed at the end of the first period, the correction unit corrects the predicted fuel consumption to be less.

[0010] It is known that when an engine is operated under low-temperature, low-load conditions and then repeatedly operated under high-temperature, high-load conditions, sludge is generated inside the engine.

[0011] According to the above configuration (2), when high temperature and high load conditions that would cause sludge to form inside the engine are met (when the engine is accelerated so that the difference between the rotation speed at the start of the first period and the rotation speed at the end of the first period is equal to or greater than a predetermined first rotation speed, and the rotation speed within the second period is maintained at or greater than the rotation speed at the end of the first period), the predicted fuel consumption is corrected to be less. Thus, the engine operating state is reflected in the timing of the oil change, and the recommended timing for the oil change can be corrected to a more appropriate time.

[0012] (3) In some embodiments, in the configuration of (1) or (2) above, the engine control device is capable of detecting a throttle opening of the engine, and the vehicle control device has a third period and a fourth period consecutive to the third period defined in advance, and if the throttle opening during the third period becomes equal to or greater than the predetermined opening and the throttle opening during the fourth period is maintained at or greater than the predetermined opening, the correction unit corrects the predicted fuel consumption to be less.

[0013] According to the above configuration (3), when high temperature and high load conditions that would cause sludge to form inside the engine are met (when the throttle opening becomes equal to or exceeds a predetermined opening within the third period and is maintained equal to or exceeds the predetermined opening within the fourth period), the predicted fuel consumption is corrected to be lower. Thus, the engine operating state is reflected in the oil change timing, and the recommended oil change timing can be corrected to a more appropriate time.

[0014] (4) In some embodiments, in any one of the configurations (1) to (3) above, a driving mode selection device is provided that enables selection of a special driving mode that has improved acceleration responsiveness compared to the normal driving mode that is set at the time of shipment from the factory, and the correction unit corrects the predicted fuel consumption to be less when the special driving mode is selected.

[0015] According to the configuration of (4) above, when the special driving mode is selected, it is determined that high temperature and high load conditions that would cause sludge inside the engine will be established, and the predicted fuel consumption is corrected to be smaller. Therefore, the operating state of the engine after the special driving mode is selected is reflected in the oil change timing, and the recommended oil change timing can be corrected to a more appropriate time.

[0016] (5) In some embodiments, in any one of the configurations (1) to (4) above, a charge mode selection device is provided that enables selection of a charge mode in which electricity generated by the engine is charged to a drive battery, and the correction unit corrects the predicted fuel consumption to be reduced when the charge mode is selected.

[0017] According to the configuration of (5) above, when the charge mode is selected, it is determined that high temperature and high load conditions that would cause sludge inside the engine will be established, and the predicted fuel consumption is corrected to be smaller. Therefore, the operating state of the engine after the selection of the charge mode is reflected in the timing of the oil change, and the timing of the recommended oil change can be corrected to a more appropriate time.

[0018] (6) In some embodiments, in any one of the configurations (1) to (5) above, a towing input device is provided for inputting towing of another vehicle, and the correction unit corrects the predicted fuel consumption to be reduced when the towing is input.

[0019] According to the configuration of (6) above, it is determined that high temperature and high load conditions that would cause sludge to form inside the engine will be established when towing is input, and the predicted fuel consumption is corrected to be lower. Therefore, the operating state of the engine after towing is input is reflected in the timing of the oil change, and the recommended timing for the oil change can be corrected to a more appropriate time.

[0020] (7) In some embodiments, in any one of the configurations (1) to (6) above, the input device is capable of inputting the completion of filter replacement and a set number of oil changes leading to replacement of the filter, and the replacement notification device is capable of notifying the recommendation of filter replacement based on an instruction from the vehicle control device, and the vehicle control device has a counting unit that counts the actual number of oil changes since the completion of filter replacement based on the completion of filter replacement and the completion of oil replacement, an replacement number comparison unit that compares the actual number of replacements with the set number of replacements, and a filter replacement recommendation instruction unit that instructs the replacement notification device to notify the recommendation of filter replacement when the actual number of replacements becomes the set number of replacements.

[0021] According to the configuration of (7) above, the number of actual oil changes is compared with the set number of oil changes, and when the number of actual oil changes reaches the set number of oil changes, the change notification device notifies the recommendation of filter change. Therefore, even in a vehicle that can generate electricity using the engine as a power source while the vehicle is stopped, the recommendation of filter change can be more appropriately notified depending on the operating state of the engine. Effect of the Invention

[0022] According to at least one embodiment of the present invention, it is possible to more appropriately notify the timing of an oil change. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a block diagram illustrating a schematic configuration of an oil management system according to first to third embodiments. [Diagram 2] 2 is a flow chart illustrating an outline of the operation of the oil management system illustrated in FIG. 1. [Diagram 3] 13 is a diagram for explaining a condition under which a correction unit corrects predicted fuel consumption to be smaller in the oil management system according to the second embodiment. FIG. [Figure 4] 10 is a flowchart illustrating an outline of the operation of a correction unit of the oil management system according to the second embodiment. [Diagram 5] FIG. 11 is a diagram for explaining a condition under which a correction unit corrects the predicted fuel consumption to be smaller in the oil management system according to the third embodiment. [Figure 6] 11 is a flowchart illustrating an outline of the operation of a correction unit of the oil management system according to the third embodiment. [Figure 7] FIG. 11 is a block diagram illustrating a schematic configuration of an oil management system according to a fourth embodiment. [Figure 8] 7 is a flow chart illustrating an outline of the operation of the oil management system illustrated in FIG. 6. [Figure 9] FIG. 11 is a block diagram illustrating a schematic configuration of an oil management system according to a fifth embodiment. [Figure 10] 10 is a flow chart illustrating an outline of the operation of the oil management system illustrated in FIG. [Figure 11] FIG. 13 is a block diagram showing the configuration of an oil management system shown in a sixth embodiment. [Figure 12] 12 is a flow chart illustrating in outline the operation of the oil management system illustrated in FIG. [Figure 13] FIG. 13 is a block diagram showing the configuration of an oil management system shown in a seventh embodiment. [Figure 14] 14 is a flowchart showing the operation of the oil management system shown in FIG. 13. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of components described as the embodiments or shown in the drawings are merely illustrative examples and are not intended to limit the scope of the present invention.

[0025] [Embodiment 1] [Configuration of the oil management system according to the first embodiment] The vehicle in which the oil management system according to the first embodiment is mounted is a hybrid vehicle powered by a motor and an engine, and is capable of running with the engine stopped (hereinafter referred to as "EV running"), running with the engine running (hereinafter referred to as "engine running"), and also capable of generating electricity using the engine as a power source. The hybrid vehicle is, for example, a plug-in hybrid vehicle (PHEV, PHV) that can be externally charged by an external power source or can be externally powered by a drive battery, but the hybrid vehicle is not limited to a plug-in hybrid vehicle.

[0026] 1, the oil management system 1A according to the first embodiment includes an engine control device 12 that detects operation and stop of an engine 10, a mileage measurement device 14 that measures the mileage of the vehicle, a fuel measurement device 16 that measures the amount of fuel in a fuel tank, an input device 18 that inputs a predicted fuel consumption rate, an oil change completion, and an oil change distance, a vehicle control device 20, and an oil change notification device 22 that notifies the recommendation of an oil change in response to an instruction from the vehicle control device 20. The engine control device 12, the mileage measurement device 14, the fuel measurement device 16, and the input device 18 are connected to the vehicle control device 20 by a CAN (Controller Area Network), and the oil change notification device 22 is connected to the vehicle control device 20 by the CAN.

[0027] The engine control device 12 is a control device that controls the engine 10, and is composed of, for example, a processor (not shown) consisting of an arithmetic unit, a register that stores instructions and information, and peripheral circuits, memories (not shown) such as ROM (Read Only Memory) and RAM (Random Access Memory), and an input / output interface (not shown).

[0028] The mileage measurement device 14 is configured, for example, by a mileage meter (trip meter) or an odometer. The fuel measurement device 16 is configured, for example, by including a fuel gauge and an A / D converter that converts analog data of the fuel gauge into digital data.

[0029] The input device 18 is, for example, configured with a multi-information display provided in the meter. The predicted fuel consumption rate is a prescribed value, and for example, a catalog value (value examined by the Ministry of Land, Infrastructure, Transport and Tourism) is used. The oil change completion is input at the time of oil change. The oil change distance is a prescribed value, and for example, a catalog value (value recommended by the manufacturer) is used. For example, the predicted fuel consumption rate is 1L / 20km (0.05L / km), and the oil change distance is 5,000km.

[0030] The vehicle control device 20 is composed of, for example, a processor (not shown) consisting of an arithmetic unit, a register for storing instructions and information, and peripheral circuits, memories (not shown) such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and an input / output interface (not shown).

[0031] The replacement notification device 22 is configured, for example, by the above-mentioned multi-information display.

[0032] The vehicle control device 20 has an actual fuel consumption calculation unit 24, an engine travel distance calculation unit 26, an actual fuel consumption rate calculation unit 28, a predicted fuel consumption calculation unit 30, a correction unit 32A, a fuel consumption comparison unit 34, and an exchange recommendation instruction unit 36.

[0033] The actual fuel consumption calculation unit 24 is configured to calculate the amount of fuel consumed since the end of the oil change (hereinafter referred to as "actual fuel consumption") based on the amount of change in the amount of fuel in the fuel tank measured by the fuel metering device 16. Among the amount of change in the amount of fuel in the fuel tank, the amount of decrease is the amount of fuel consumed, and the amount of increase is the amount of fuel supplied (amount of fuel supplied).

[0034] The engine mileage calculation unit 26 is configured to calculate the mileage using the engine 10 as the power source (hereinafter referred to as the "engine mileage") based on the operation and stop of the engine 10 detected by the engine control device 12, and the mileage from the end of the oil change (end of the previous oil change) (hereinafter referred to as the "post-change mileage"). The engine mileage is the mileage using the engine 10 as the power source among the post-change mileage, and the engine mileage is specified by detecting the operation of the engine 10.

[0035] The actual fuel consumption rate calculation unit 28 is configured to calculate the actual fuel consumption rate based on the engine traveling distance calculated by the engine traveling distance calculation unit 26 and the actual fuel consumption amount calculated by the actual fuel consumption amount calculation unit 24. The actual fuel consumption rate is calculated by dividing the actual fuel consumption amount by the engine traveling distance.

[0036] The predicted fuel consumption calculation unit 30 is configured to calculate the fuel consumption required to travel the replacement mileage (hereinafter referred to as "predicted fuel consumption") based on the replacement distance and predicted fuel consumption rate input from the input device 18. The predicted fuel consumption is calculated by multiplying the replacement distance by the predicted fuel consumption rate. For example, in the above example (where the measured fuel consumption rate is 1L / 20km (0.05L / km) and the oil replacement distance is 5,000km), the predicted fuel consumption is 250L (5,000km x 0.05L / km).

[0037] Correction unit 32A is configured to correct the predicted fuel consumption to be less when the actual fuel consumption rate calculated by actual fuel consumption rate calculation unit 28 is equal to or less than the predicted fuel consumption rate input from input device 18. Correction unit 32A corrects, for example, the fuel consumption amount required to travel the replacement mileage based on the replacement distance and the actual fuel consumption rate so that it becomes the predicted fuel consumption amount. In this case, the predicted fuel consumption amount is calculated by multiplying the replacement distance by the actual fuel consumption rate.

[0038] The fuel consumption comparing unit 34 is configured to compare the actual fuel consumption calculated by the actual fuel consumption calculating unit 24 with the predicted fuel consumption input by the input device 18 (the predicted fuel consumption corrected by the correcting unit 32A).

[0039] The replacement recommendation instruction unit 36 ​​is configured to instruct the replacement notification device 22 to notify the recommendation of an oil change when the actual fuel consumption reaches the predicted fuel consumption (when the actual fuel consumption compared by the fuel consumption comparison unit 34 becomes the same as the predicted fuel consumption).

[0040] [Operation of Oil Management System 1A] As shown in FIG. 2, in the oil management system 1A according to the first embodiment, a predicted fuel consumption rate and an oil change distance are inputted from the input device 18 (step S1) (preparation step).

[0041] In the oil management system 1A according to the first embodiment, first, the actual fuel consumption calculation unit 24 calculates the actual fuel consumption based on the amount of fuel change in the fuel tank measured by the fuel metering device 16 (step S2). Next, the engine mileage calculation unit 26 calculates the engine mileage based on the operation and stop of the engine 10 detected by the engine control device 12 and the mileage after replacement measured by the mileage measurement device 14 (step S3).

[0042] Next, the actual fuel consumption rate calculation unit 28 calculates the actual fuel consumption rate based on the engine traveling distance calculated by the engine traveling distance calculation unit 26 and the actual fuel consumption calculated by the actual fuel consumption amount calculation unit 24 (step S4). Next, the predicted fuel consumption amount calculation unit 30 calculates the predicted fuel consumption amount based on the predicted fuel consumption rate and the oil change distance input from the input device 18 (step S5).

[0043] If the actual fuel consumption rate calculated by actual fuel consumption rate calculation unit 28 is equal to or lower than the predicted fuel consumption rate input from input device 18 (step S6: Yes), correction unit 32A corrects the predicted fuel consumption to be smaller (step S7). Next, fuel consumption comparison unit 34 compares the actual fuel consumption calculated by the actual fuel consumption rate calculation unit with the predicted fuel consumption input from input device 18 (the predicted fuel consumption corrected by correction unit 32A) (step S8).

[0044] When the actual fuel consumption reaches the predicted fuel consumption (step S8: Yes), the change recommendation instructing unit 36 ​​instructs the change notification device 22 to notify the recommendation of an oil change, and the change notification device 22 notifies the recommendation of an oil change (step S9).

[0045] When the oil change operation is performed (step S10) and the completion of the oil change is input from the input device 18 (step S11), the series of operations is completed (completion of the oil change). Thereafter, this series of operations is repeated.

[0046] [Effects of Oil Management System 1A] According to the oil management system 1A of the first embodiment, the actual fuel consumption is compared with the predicted fuel consumption, and when the actual fuel consumption reaches the predicted fuel consumption, the recommendation of an oil change is notified from the oil change notification device 22. Therefore, even in a vehicle that can generate electricity using the engine 10 as a power source while the vehicle is stopped, the recommendation of an oil change can be more appropriately notified depending on the operating state of the engine 10.

[0047] [Embodiment 2] [Configuration of the oil management system according to the second embodiment] In the oil management system 1B according to the second embodiment, the engine control device 12 can detect the rotation speed of the engine 10. As shown in FIG. 3, the vehicle control device 20 has a first period and a second period that is continuous with the first period, and the engine is accelerated so that the difference between the rotation speed at the start of the first period and the rotation speed at the end of the first period is equal to or greater than the first rotation speed. When the rotation speed in the second period is maintained equal to or greater than the rotation speed at the end of the first period, the correction unit 32B corrects the predicted fuel consumption to be smaller. For example, the first period is 10 seconds, the second period is 3 minutes, and the first rotation speed is 3500 rpm. In this case, when the engine is accelerated by 3500 rpm or more for 10 seconds and is maintained equal to or greater than the accelerated rotation speed for the next 3 minutes, the correction unit 32B corrects the predicted fuel consumption to be smaller. The correction amount is predetermined, but can be arbitrarily determined depending on the conditions. The other configurations are the same as those of the oil management system 1A according to the first embodiment.

[0048] [Operation of the oil management system] In the oil management system 1B according to the second embodiment, when the vehicle is accelerated to a first rotation speed or more during engine running as shown in Fig. 4 (step S21: Yes), the period required for the acceleration is within the first period (step S22: Yes), and the rotation speed at or above the rotation speed at the end of the first period is maintained for more than the second period (step S23: Yes), the correction unit 32B corrects the predicted fuel consumption to be smaller (step S24). The other operations are the same as those of the oil management system 1A according to the first embodiment.

[0049] Therefore, the operating state of the engine 10 is reflected in the timing of the oil change, and the recommended timing for the oil change can be corrected to a more appropriate time.

[0050] [Embodiment 3] [Configuration of the oil management system according to the third embodiment] In the oil management system 1C according to the third embodiment, the engine control device 12 can detect the throttle opening of the engine 10. As shown in FIG. 5, the vehicle control device 20 has a third period and a fourth period following the third period, and when the throttle opening becomes equal to or greater than the predetermined opening during the third period and is maintained equal to or greater than the predetermined opening during the fourth period, the correction unit 32C corrects the predicted fuel consumption to be smaller. For example, the third period is 10 seconds, the fourth period is 5 seconds, and the predetermined throttle opening is 90%. In this case, when the throttle opening becomes equal to or greater than 90% within 10 seconds and is maintained equal to or greater than 90% for the next 5 seconds, the correction unit 32B corrects the reserve fuel consumption to be smaller. The correction amount is predetermined, but can be arbitrarily determined depending on the conditions. The other configurations are the same as those of the oil management systems 1A and 1B according to the first and second embodiments.

[0051] [Operation of the oil management system] In the oil management system 1C according to the third embodiment, as shown in Fig. 6, if the throttle opening becomes equal to or larger than a predetermined opening within the third period (step S31: Yes) and the opening equal to or larger than the predetermined throttle opening is maintained for more than the fifth period (step S32: Yes), the correction unit 32C corrects the predicted fuel consumption to be smaller (step S33). The other operations are the same as those of the oil management systems 1A and 1B according to the first and second embodiments.

[0052] Therefore, the operating state of the engine 10 is reflected in the timing of the oil change, and the recommended timing of the oil change can be corrected to a more appropriate time.

[0053] [Embodiment 4] [Configuration of the oil management system according to the fourth embodiment] As shown in FIG. 7, the oil management system 1D according to the fourth embodiment includes a driving mode selection device 38 that enables the selection of a special driving mode that has a higher acceleration response than the normal driving mode set at the time of shipment from the factory. The driving mode selection device 38 is, for example, configured by a drive mode selector provided near a selector lever. The normal driving mode is, for example, a driving mode called a normal mode, and the special driving mode is, for example, a driving mode called a power mode or a tarmac mode. The power mode or the tarmac mode is a driving mode that has a higher acceleration response than the normal mode. The power mode is a mode that maximizes a powerful and responsive acceleration feeling, and the tarmac mode is a driving mode suitable for driving on dry paved roads and provides the fun of driving due to agile behavior.

[0054] The correction unit 32D corrects the predicted fuel consumption to be reduced when the special driving mode is selected. The correction amount is determined in advance, but can be determined arbitrarily depending on the conditions. For example, the correction is performed to reduce the fuel for the special driving mode. The other configurations are the same as those of the oil management systems 1A, 1B, and 1C according to the first to third embodiments.

[0055] [Operation of Oil Management System 1D] In the oil management system 1D according to the fourth embodiment, when the special driving mode is selected by the driving mode selection device 38 (step S41), the correction unit 32D corrects the predicted fuel consumption to be smaller (step S42) as shown in Fig. 8. The other operations are the same as those of the oil management systems 1A, 1B, and 1C according to the first to third embodiments.

[0056] Therefore, the operating state of the engine after the special driving mode is selected is reflected in the timing of the oil change, and the recommended timing of the oil change can be corrected to a more appropriate time.

[0057] [Embodiment 5] [Configuration of the oil management system according to the fifth embodiment] As shown in Fig. 9, the oil management system 1E according to the fifth embodiment includes a charge mode selection device 40 that enables selection of a charge mode in which electricity generated by the engine 10 is charged to a drive battery. The charge mode selection device 40 is, for example, configured by an EV mode selector switch provided near a selector lever. The charge mode is, for example, a mode called a battery charge mode.

[0058] The correction unit 32E corrects the predicted fuel consumption to be less when the charge mode is selected. The correction amount is determined in advance, but can be determined arbitrarily depending on the conditions. For example, the correction is performed to reduce the fuel by the amount of the charge mode. The other configurations are the same as those of the oil management systems 1A, 1B, 1C, and 1D according to the first to fourth embodiments.

[0059] [Operation of Oil Management System 1E] In the oil management system 1E according to the fifth embodiment, when the charge mode is selected by the charge mode selection device 40 (step S51: Yes), the correction unit 32E corrects the predicted fuel consumption to be smaller (step S52) as shown in Fig. 10. The other operations are the same as those of the oil management systems 1A, 1B, 1C, and 1D according to the first to fourth embodiments.

[0060] Therefore, the operating state of the engine 10 after the selection of the charge mode is reflected in the timing of the oil change, and the recommended timing of the oil change can be corrected to a more appropriate time.

[0061] [Embodiment 6] [Configuration of the oil management system according to the sixth embodiment] The oil management system 1F according to the sixth embodiment includes a towing input device 42 for inputting a towing request from another vehicle, as shown in Fig. 11. The towing input device 42 is formed of, for example, a towing switch provided in the driver's seat.

[0062] When towing is input (step S61: Yes), the correction unit 32F corrects the predicted fuel consumption to be less (step S62). The amount of correction is predetermined, but can be determined arbitrarily depending on the conditions. For example, the correction is made so that the fuel is reduced by the amount of towing. The other configurations are the same as those of the oil management systems 1A, 1B, 1C, 1D, and 1E according to the first to fifth embodiments.

[0063] [Operation of Oil Management System 1F] In the oil management system 1F according to the sixth embodiment, as shown in Fig. 12, when towing is input from the towing input device 42, the correction unit 32F corrects the predicted fuel consumption to be smaller. The other operations are the same as those of the oil management systems 1A, 1B, 1C, 1D, and 1E according to the first to fifth embodiments.

[0064] Therefore, the operating state of the engine 10 after towing is input is reflected in the timing of the oil change, and the recommended timing of the oil change can be corrected to a more appropriate time.

[0065] [Embodiment 7] [Configuration of the oil management system according to the seventh embodiment] As shown in FIG. 13, in the oil management system 1G of the seventh embodiment, the input device 18 can input the end of filter replacement and the number of oil changes until the filter is replaced (hereinafter referred to as the "set number of replacements"), and the replacement notification device 22 can notify the recommendation of filter replacement upon instruction from the vehicle control device 20.

[0066] The vehicle control device 20 has a counting unit 44, a replacement count comparing unit 46, and a filter replacement recommendation instruction unit 48. The counting unit 44 is configured to count the number of oil replacements (hereinafter referred to as "actual replacement count") from the end of filter replacement based on the end of filter replacement and the end of oil replacement input from the input device 18. The replacement count comparing unit 46 is configured to compare the actual replacement count counted by the counting unit 44 with the set replacement count input from the input device 18. The filter replacement recommendation instruction unit 48 is configured to instruct the replacement notification device 22 to notify the recommendation of filter replacement when the actual replacement count reaches the set replacement count. The other configurations are the same as those of the oil management systems 1A, 1B, 1C, 1D, 1E, and 1F according to the first to sixth embodiments.

[0067] [Operation of Oil Management System 1G] As shown in FIG. 14, in the oil management system 1G according to the seventh embodiment, a set number of oil changes leading up to filter change is input from the input device 18 (step S71) (preparation step).

[0068] In the oil management system 1G according to the seventh embodiment, when the completion of the oil change is input from the input device 18 (step S72: Yes), the counting unit 44 adds the number of oil changes (1 time) to the actual number of changes (step S73). Next, the change number comparison unit 46 compares the actual number of changes counted by the counting unit 44 with the set number of changes inputted by the input device 18 (step S74).

[0069] When the actual replacement count reaches the set replacement count (step S74: Yes), the filter replacement recommendation instructing unit 48 instructs the replacement notification device 22 to notify the recommendation of filter replacement, and the replacement notification device 22 notifies the recommendation of filter replacement (step S75).

[0070] When the oil change work is performed (step S76) and the end of the filter change is input from the input device 18 (step S77), the series of operations ends (end of filter change). The series of operations ends thereafter. The other operations are the same as those of the oil management systems 1A, 1B, 1C, 1D, 1E, and 1F according to the first to sixth embodiments.

[0071] [Effects of Oil Management System 1G] According to the oil management system 1G of embodiment 7, even in a vehicle that can generate electricity using the engine 10 as a power source while the vehicle is stopped, the recommendation to replace the filter can be more appropriately notified based on the operating state of the engine 10. [Explanation of symbols]

[0072] 1A~1G Oil Management System 10 Engine 12 Engine control device 14 Odometer measuring device 16 Fuel Measuring Device 18 Input Devices 20 Vehicle control device 22 Replacement notification device 24 Actual fuel consumption calculation unit 26 Engine mileage calculation unit 28 Actual fuel consumption rate calculation section 30 Predicted fuel consumption calculation unit 32A~32F Correction section 34 Fuel consumption comparison section 36 Replacement recommendation section 38 Driving mode selection device 40 Charge mode selection device 42 Traction input device 44 Counting section 46 Exchange count comparison section 48 Filter replacement recommendation section

Claims

1. An engine control device that detects operation and stop of the engine; A mileage measuring device for measuring a mileage of a vehicle; a fuel metering device for measuring the amount of fuel in a fuel tank; an input device for inputting a predicted fuel consumption rate, an oil change completion date, and a distance between the oil changes; A vehicle control device; an oil change notification device that notifies the user that an oil change is recommended in response to an instruction from the vehicle control device; An oil management system comprising: The vehicle control device includes: an actual fuel consumption calculation unit that calculates an actual fuel consumption amount since the end of the oil change based on a change in the amount of fuel in the fuel tank; an engine mileage calculation unit that calculates an engine mileage using the engine as a power source based on the operation and stop of the engine and the mileage after the oil change; an actual fuel consumption rate calculation unit that calculates an actual fuel consumption rate based on the engine traveling distance and the actual fuel consumption amount; a predicted fuel consumption calculation unit that calculates a predicted fuel consumption required for traveling the replacement distance based on the replacement distance and the predicted fuel consumption rate; a correction unit that corrects the predicted fuel consumption rate so as to be smaller when the actual fuel consumption rate becomes equal to or smaller than the predicted fuel consumption rate; a fuel consumption comparison unit that compares the actual fuel consumption with the predicted fuel consumption; a replacement recommendation instruction unit that instructs the replacement notification device to notify a recommendation to replace the oil when the actual fuel consumption amount reaches the predicted fuel consumption amount; An oil management system having

2. The engine control device is capable of detecting a rotation speed of the engine, A first period and a second period consecutive to the first period are defined in advance in the vehicle control device, 2. The oil management system according to claim 1, wherein the rotational speed is accelerated so that a difference between the rotational speed at the start of the first period and the rotational speed at the end of the first period is equal to or greater than a predetermined first rotational speed, and when the rotational speed within the second period is maintained equal to or greater than the rotational speed at the end of the first period, the correction unit corrects the predicted fuel consumption to be smaller.

3. The engine control device is capable of detecting a throttle opening degree of the engine, A third period and a fourth period subsequent to the third period are defined in advance in the vehicle control device, When the throttle opening becomes equal to or greater than a predetermined opening within the third period and the throttle opening within the fourth period is maintained equal to or greater than the predetermined opening, the correction unit corrects the predicted fuel consumption to be smaller.

3. An oil management system according to claim 1 or 2.

4. A driving mode selection device is provided that enables the selection of a special driving mode that has a higher acceleration response than the normal driving mode set at the time of shipment from the factory, The oil management system according to claim 1 , wherein the correction unit corrects the predicted fuel consumption to be smaller when the special driving mode is selected.

5. a charge mode selection device that enables selection of a charge mode in which electricity generated by the engine is charged to a drive battery, The oil management system according to claim 1 , wherein the correction unit corrects the predicted fuel consumption to be smaller when the charge mode is selected.

6. A towing input device for inputting towing of another vehicle is provided, The correction unit corrects the predicted fuel consumption to be smaller when the towing is input. An oil management system according to any one of claims 1 to 5.

7. The input device is capable of inputting a set number of oil changes until the end of filter change and the replacement of the filter, The replacement notification device is capable of notifying a recommendation for filter replacement in response to an instruction from the vehicle control device, The vehicle control device includes: a counting unit that counts the number of times the oil has actually been changed since the end of the filter change based on the end of the filter change and the end of the oil change; A replacement count comparison unit that compares the actual replacement count with the set replacement count; a filter replacement recommendation instruction unit that instructs the replacement notification device to notify a recommendation to replace the filter when the actual replacement count reaches the set replacement count; The oil management system according to claim 1 , further comprising:

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