JP2023121569A - oil management system - Google Patents

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

The present disclosure relates to oil management systems.

Patent Literature 1 describes a vehicle oil management device that manages the state of oil in a hybrid vehicle capable of running using an engine as a power source and running using a motor as a power source. Such a vehicle oil management device includes a mileage management unit capable of managing the mileage of a hybrid vehicle, an engine management unit capable of managing the timing of starting and stopping operation of the engine, and the operation of the engine managed by the engine management unit. and an engine travel management unit capable of managing the travel distance driven by the engine, out of the travel distance managed by the travel distance management unit, based on the timing of operation start and operation stop.

According to the vehicle oil management device disclosed in Patent Document 1, it is possible to determine when to change the oil based on the mileage driven by the engine.

JP 2020-148123 A

However, in a vehicle that can generate electricity using the engine as a power source while the vehicle is stopped, the mileage using the engine as the power source may be 0 even if the engine is operated. It is not enough to determine when to change the oil based on the mileage alone.

In view of the circumstances described above, it is an object of at least one embodiment of the present invention to provide an oil management system capable of more appropriately informing of oil replacement recommendations.

(1) An oil management system according to at least one embodiment of the present invention includes an engine control device for detecting the running and stopping of an engine, a mileage measuring device for measuring the mileage of a vehicle, and fuel in a fuel tank. a fuel measuring device for measuring the amount of fuel, an input device for inputting a predicted fuel consumption rate, the end of oil replacement, and the oil replacement distance, a vehicle control device, and an oil according to instructions from the vehicle control device and a replacement notification device for notifying replacement recommendation of the oil, wherein the vehicle control device calculates the actual fuel consumption from the end of the oil replacement based on the amount of change in the amount of fuel in the fuel tank. and an engine travel distance calculation unit that calculates the engine travel distance powered by the engine based on the operation and stop of the engine and the post-change travel distance from the completion of the oil replacement. an actual fuel consumption rate calculation unit for calculating an actual fuel consumption rate based on the engine travel distance and the actual fuel consumption amount; and a predicted fuel consumption required to travel the replacement distance based on the replacement distance and the predicted fuel consumption rate a predicted fuel consumption calculation unit that calculates the amount of fuel consumption; a correction unit that corrects the predicted fuel consumption to decrease when the actual fuel consumption rate is equal to or lower than the predicted fuel consumption rate; and the actual fuel consumption and a fuel consumption comparison unit that compares the predicted fuel consumption with the predicted fuel consumption, and a replacement that instructs the replacement notification device to notify the replacement of the oil when the actual fuel consumption reaches the predicted fuel consumption and a recommendation indicator.

According to the above configuration (1), the actual fuel consumption amount is compared with the predicted fuel consumption amount, and when the actual fuel consumption amount reaches the predicted fuel consumption amount, the oil replacement notification device notifies that the oil replacement is recommended. be done. Therefore, even in a vehicle that can generate power using the engine as a power source while the vehicle is stopped, it is possible to more appropriately notify the user of the recommendation to replace the oil.

(2) In some embodiments, in the configuration of (1) above, the engine control device is capable of detecting the rotation speed of the engine, and the vehicle control device has in advance the first period and the first A second period that follows the period is determined such 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 a predetermined first rotational speed. When the vehicle is accelerated and the rotation speed within the second period is maintained at or above the rotation speed at the end of the first period, the correction unit corrects the predicted fuel consumption amount to be reduced.

It is known that sludge is generated inside the engine when the engine is operated under low temperature and low load conditions and then repeatedly operated under high temperature and high load conditions.

According to the above configuration (2), when a high temperature and high load condition that causes sludge to occur inside the engine is established (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 When the engine is accelerated to a predetermined first rotation speed or more, and the rotation speed within the second period is maintained at or above the rotation speed at the end of the first period), the predicted fuel consumption is reduced. is corrected to Therefore, the operating state of the engine is reflected in the oil replacement timing, and the oil replacement recommendation timing can be corrected to a more appropriate timing.

(3) In some embodiments, in the configuration of (1) or (2) above, the engine control device is capable of detecting the throttle opening of the engine, and the vehicle control device has in advance a third A period and a fourth period continuing from the third period are determined, the throttle opening becomes equal to or greater than the predetermined opening within the third period, and the throttle opening within the fourth period increases to the predetermined opening. The correcting unit corrects the predicted fuel consumption so as to decrease when the opening is maintained at a predetermined opening or more.

According to the above configuration (3), when a high temperature and high load condition that causes sludge to be generated in the engine is established (the throttle opening becomes a predetermined opening or more within the third period, is maintained at a predetermined opening or more, the predicted fuel consumption amount is corrected to decrease. Therefore, the operating state of the engine is reflected in the oil replacement timing, and the oil replacement recommendation timing can be corrected to a more appropriate timing.

(4) In some embodiments, in any one of the above configurations (1) to (3), it is possible to select a special driving mode with higher acceleration responsiveness than the normal driving mode set at the time of shipment from the factory. The correcting unit corrects the predicted fuel consumption amount to decrease when the special traveling mode is selected.

According to the above configuration (4), when the special driving mode is selected, it is determined that a high temperature and high load condition that causes sludge is generated in the engine is established, and the predicted fuel consumption amount is corrected to decrease. be. Therefore, the operating state of the engine after the special driving mode is selected is reflected in the oil replacement timing, and the oil replacement recommendation timing can be corrected to a more appropriate timing.

(5) In some embodiments, in the configuration of any one of (1) to (4) above, a charge mode that enables selection of a charge mode for charging a drive battery with electricity generated by the engine. A selection device is provided, and the correction unit corrects the predicted fuel consumption amount to decrease when the charge mode is selected.

According to the above configuration (5), when the charge mode is selected, it is determined that a high temperature and high load condition that causes sludge to occur inside the engine is established, and the predicted fuel consumption amount is corrected so as to decrease. . Therefore, the operating state of the engine after the charge mode is selected is reflected in the oil replacement timing, and the recommended timing for oil replacement can be corrected to a more appropriate timing.

(6) In some embodiments, in the configuration of any one of (1) to (5) above, a traction input device for inputting traction of another vehicle is provided, and the correction unit receives the input of the traction. If so, the predicted fuel consumption amount is corrected to decrease.

According to the above configuration (6), it is determined that a high temperature and high load condition that causes sludge to occur inside the engine when towing is input, and the predicted fuel consumption amount is corrected to decrease. Therefore, the operating state of the engine after the traction is input is reflected in the oil replacement timing, and the oil replacement recommendation timing can be corrected to a more appropriate timing.

(7) In some embodiments, in the configuration of any one of (1) to (6) above, the input device controls the end of filter replacement and the set number of oil replacements leading to replacement of the filter. The replacement notification device is capable of informing recommendation of replacement of the filter according to an instruction from the vehicle control device, and the vehicle control device is configured to notify the end of replacement of the filter and the end of replacement of the oil. a counting unit that counts the actual number of times the oil has been replaced since the end of the replacement of the filter; a replacement frequency comparison unit that compares the actual number of replacement times with the set number of replacement times; and a filter replacement recommendation instructing unit for instructing the replacement notification device to notify the replacement recommendation of the filter.

According to the above configuration (7), the actual number of oil changes is compared with the set number of oil changes, and when the actual number of oil changes reaches the set number of oil changes, the change notification device notifies the user that the filter has been replaced. A replacement recommendation is notified. Therefore, even in a vehicle that can generate power using the engine as a power source while the vehicle is stopped, it is possible to more appropriately notify the user of the recommendation to replace the filter depending on the operating state of the engine.

According to at least one embodiment of the present invention, it is possible to more appropriately notify the timing of the oil change.

1 is a block diagram schematically showing the configuration of an oil management system according to Embodiments 1 to 3; FIG. 2 is a flow chart schematically showing the operation of the oil management system shown in FIG. 1; FIG. 10 is a diagram illustrating conditions under which a correction unit corrects the predicted fuel consumption amount to decrease in the oil management system according to the second embodiment; 9 is a flow chart schematically showing the operation of the correction unit of the oil management system according to Embodiment 2; FIG. 11 is a diagram for explaining conditions under which a correction unit corrects the predicted fuel consumption amount to be reduced in the oil management system according to the third embodiment; 10 is a flow chart schematically showing the operation of the correction unit of the oil management system according to Embodiment 3; FIG. 11 is a block diagram schematically showing the configuration of an oil management system according to Embodiment 4; 7 is a flow chart schematically showing the operation of the oil management system shown in FIG. 6; FIG. 11 is a block diagram schematically showing the configuration of an oil management system according to Embodiment 5; FIG. 10 is a flow chart schematically showing the operation of the oil management system shown in FIG. 9; FIG. FIG. 11 is a block diagram showing the configuration of an oil management system shown in Embodiment 6; 12 is a flowchart schematically showing the operation of the oil management system shown in FIG. 11; FIG. 12 is a block diagram showing the configuration of an oil management system shown in Embodiment 7; 14 is a flow chart showing the operation of the oil management system shown in FIG. 13;

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

[Embodiment 1]
[Configuration of Oil Management System According to Embodiment 1]
A vehicle in which the oil management system according to the first embodiment is installed is a hybrid vehicle using a motor and an engine as power sources, and is capable of running with the engine stopped (hereinafter referred to as "EV running") or running with the engine running (hereinafter referred to as "EV running"). (referred to as "engine running"), power generation using the engine as a power source is possible. A hybrid vehicle is, for example, a plug-in hybrid vehicle (PHEV, PHV) capable of being externally charged by an external power supply or externally powered by a drive battery, but the hybrid vehicle is not limited to a plug-in hybrid vehicle.

As shown in FIG. 1, an oil management system 1A according to the first embodiment includes an engine control device 12 that detects the running and stopping of an engine 10, a mileage measuring device 14 that measures the mileage of a vehicle, a fuel A fuel measuring device 16 for measuring the amount of fuel in the tank, an input device 18 for inputting a predicted fuel consumption rate, oil change completion, and oil change distance, a vehicle control device 20, and a vehicle control device 20 and a replacement notification device 22 for notifying recommendation of oil replacement by an instruction from. The engine control device 12, the mileage measuring device 14, the fuel measuring device 16, and the input device 18 are connected to the vehicle control device 20 by CAN (Controller Area Network), and the replacement notification device 22 is connected to the vehicle control device 20 by CAN. It is

The engine control device 12 is a control device for controlling the engine 10, and includes, for example, a processor (not shown) composed of an arithmetic unit, registers for storing instructions and information, peripheral circuits, etc., ROM (Read Only Memory). ), a memory (not shown) such as a RAM (Random Access Memory), and an input/output interface (not shown).

The mileage measuring device 14 is composed of, for example, a mileage meter (trip meter) or an accumulated mileage meter (odometer). The fuel measuring device 16 includes, for example, a fuel gauge and an A/D converter that converts analog data of the fuel gauge into digital data.

The input device 18 is configured by, for example, a multi-information display provided within the meter. The predicted fuel consumption rate is a specified value, and for example, a catalog value (value examined by the Ministry of Land, Infrastructure, Transport and Tourism) is used. The end of the oil change is input when the oil is changed. The oil change distance is a specified value, and for example, a catalog value (manufacturer's recommended value) is used. For example, the predicted fuel consumption rate is 1 L/20 km (0.05 L/km) and the oil change distance is 5,000 km.

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

The replacement notification device 22 is configured by, for example, the above-described multi-information display.

The vehicle control device 20 includes 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 a replacement unit. It has a recommendation indicator 36 .

The actual fuel consumption calculation unit 24 calculates the fuel consumption (hereinafter referred to as "actual fuel consumption") from the end of the oil change based on the amount of change in the amount of fuel in the fuel tank measured by the fuel measuring device 16. It is a configuration that The amount of decrease in the amount of change in the amount of fuel in the fuel tank is the amount of fuel consumption, and the amount of increase is the amount of fuel supply (refueling amount).

The engine travel distance calculation unit 26 calculates the operation and stop of the engine 10 detected by the engine control device 12, and the travel distance from the end of the oil change (the end of the previous oil change) (hereinafter referred to as "post-change travel distance"). is a configuration for calculating the traveling distance using the engine 10 as a power source (hereinafter referred to as "engine traveling distance"). The engine travel distance is the travel distance using the engine 10 as a power source in the post-exchange travel distance, and the engine travel distance is specified by detecting the operation of the engine 10 .

The actual fuel consumption rate calculation unit 28 is configured to calculate the actual fuel consumption rate based on the engine travel distance calculated by the engine travel 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 obtained by dividing the actual fuel consumption amount by the engine travel distance.

The predicted fuel consumption calculation unit 30 calculates the fuel consumption (hereinafter referred to as "predicted fuel consumption") required to travel the replacement mileage based on the replacement mileage and predicted fuel consumption rate input from the input device 18. Configuration. The predicted fuel consumption amount is obtained by multiplying the exchange distance by the predicted fuel consumption rate. For example, in the above example (when the measured fuel consumption rate is 1 L/20 km (0.05 L/km) and the oil change distance is 5,000 km), the predicted fuel consumption is 250 L (5,000 km x 0 .05 L/km).

The correction unit 32A corrects the predicted fuel consumption amount to decrease when the actual fuel consumption rate calculated by the actual fuel consumption rate calculation unit 28 is equal to or lower than the predicted fuel consumption rate input from the input device 18. is. The correcting unit 32A corrects, for example, the amount of fuel consumption required to travel the replacement mileage based on the replacement mileage and the actual fuel consumption rate so that it becomes the predicted fuel consumption amount. In this case, the predicted fuel consumption amount is obtained by multiplying the replacement distance by the actual fuel consumption rate.

The fuel consumption comparison unit 34 compares the actual fuel consumption calculated by the actual fuel consumption calculation unit 24 with the predicted fuel consumption input by the input device 18 (predicted fuel consumption corrected by the correction unit 32A). This is the configuration for comparison.

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), the replacement recommendation instructing unit 36 recommends replacement. This is a configuration for instructing the notification device 22 to notify the recommendation of oil replacement.

[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 input from the input device 18 (step S1) (preparation step).

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 change in the amount of fuel in the fuel tank measured by the fuel measuring 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 post-replacement mileage measured by the mileage measurement device 14 (step S3). .

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

When the actual fuel consumption rate calculated by the actual fuel consumption rate calculation unit 28 is equal to or less than the predicted fuel consumption rate input from the input device 18 (step S6: Yes), the correction unit 32A determines that the predicted fuel consumption amount is Correction is made so as to decrease (step S7). Next, the fuel consumption comparison unit 34 compares the actual fuel consumption calculated by the actual fuel consumption calculation unit with the predicted fuel consumption input by the input device 18 (predicted fuel consumption corrected by the correction unit 32A). are compared (step S8).

When the actual fuel consumption reaches the predicted fuel consumption (step S8: Yes), the replacement recommendation instructing unit 36 instructs the oil replacement notification device 22 to notify the oil replacement recommendation, and the replacement notification device 22 recommends the oil replacement. Notify (step S9).

When the oil replacement work is carried out (step S10) and the end of oil replacement is input from the input device 18 (step S11), a series of operations is completed (end of oil replacement). This series of operations is repeated.

[Effect of oil management system 1A]
According to the oil management system 1A according to the first embodiment, the actual fuel consumption amount and the predicted fuel consumption amount are compared, and when the actual fuel consumption amount reaches the predicted fuel consumption amount, the replacement notification device 22 notifies the oil replacement amount. A replacement recommendation is notified. Therefore, even in a vehicle that can generate power using the engine 10 as a power source while the vehicle is stopped, it is possible to more appropriately notify the user of the recommendation to replace the oil according to the operating state of the engine 10 .

[Embodiment 2]
[Configuration of Oil Management System According to Embodiment 2]
In the oil management system 1B according to the second embodiment, the engine control device 12 can detect the rotational speed of the engine 10. FIG. As shown in FIG. 3, the vehicle control device 20 is provided with a first period and a second period that follows the first period in advance. When the rotation speed is accelerated so that the difference from the rotation speed becomes equal to or greater than a predetermined first rotation speed, and the rotation speed within the second period is maintained at or above the rotation speed at the end of the first period, the correction unit 32B , corrects so that the predicted fuel consumption is reduced. 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 vehicle is accelerated to 3500 rpm or more for 10 seconds and then maintained at the post-acceleration rotational speed or higher for 3 minutes, the correction unit 32B corrects the predicted fuel consumption amount to be reduced. Although the correction amount is predetermined, it can be arbitrarily determined depending on the conditions. Other configurations are the same as those of the oil management system 1A according to the first embodiment.

[Oil management system operation]
In the oil management system 1B according to the second embodiment, as shown in FIG. 4, during engine running of the vehicle, there is acceleration at the first rotation speed or more (step S21: Yes), and the period required for the acceleration is the first period. within (step S22: Yes), and the rotation speed equal to or higher than the rotation speed at the end of the first period is maintained beyond the second period (step S23: Yes), the correction unit 32B determines the predicted fuel consumption Correction is made so that the amount is reduced (step S24). Other operations are the same as those of the oil management system 1A according to the first embodiment.

Therefore, the operating state of the engine 10 is reflected in the oil replacement timing, and the oil replacement recommendation timing can be corrected to a more appropriate timing.

[Embodiment 3]
[Configuration of Oil Management System According to Embodiment 3]
In the oil management system 1</b>C according to Embodiment 3, the engine control device 12 can detect the throttle opening of the engine 10 . In the vehicle control device 20, as shown in FIG. 5, a third period and a fourth period continuing from the third period are determined in advance, and the throttle opening is set to the predetermined opening degree within the third period. As described above, when the throttle opening degree within the fourth period is maintained at or above the predetermined opening degree, the correction unit 32C corrects the predicted fuel consumption amount to be reduced. For example, the third period is 10 seconds, the fourth period is 5 seconds, and the predetermined throttle opening is 90%. In this case, if the throttle opening becomes 90% or more within 10 seconds and the throttle opening is maintained at 90% or more for 5 seconds after that, the correction unit 32B corrects so that the preliminary fuel consumption is reduced. do. Although the correction amount is determined in advance, the correction amount can be arbitrarily determined depending on the conditions. Other configurations are the same as those of the oil management systems 1A and 1B according to the first or second embodiment.

[Oil management system operation]
In the oil management system 1C according to the third embodiment, as shown in FIG. 6, the throttle opening becomes equal to or larger than the predetermined opening within the third period (step S31: Yes), and the throttle opening becomes equal to or larger than the predetermined throttle opening. is maintained beyond the fifth period (step S32: Yes), the correction unit 32C corrects the predicted fuel consumption amount to be reduced (step S33). Other operations are the same as those of the oil management systems 1A and 1B according to the first or second embodiment.

Therefore, the operating state of the engine 10 is reflected in the oil replacement timing, and the oil replacement recommendation timing can be corrected to a more appropriate timing.

[Embodiment 4]
[Configuration of Oil Management System According to Embodiment 4]
The oil management system 1D according to the fourth embodiment, as shown in FIG. 7, includes a driving mode selection device 38 that enables selection of a special driving mode with higher acceleration responsiveness than the normal driving mode set at the time of shipment from the factory. It has The driving mode selection device 38 is composed of, for example, a drive mode selector provided near the selector lever. The normal running mode is, for example, a running mode called normal mode, and the special running mode is, for example, a running mode called power mode or tarmac mode. A power mode or a tarmac mode is a driving mode in which the acceleration response is enhanced compared to the normal mode. Power mode is a mode that maximizes the feeling of powerful and responsive acceleration, while Tarmac mode is a driving mode that is suitable for driving on dry paved roads and provides driving pleasure with agile behavior. mode.

The correction unit 32D corrects the predicted fuel consumption amount to decrease when the special driving mode is selected. Although the correction amount is predetermined, it can be arbitrarily determined depending on the conditions. For example, correction is made so that the amount of fuel for the special running mode is reduced. Other configurations are the same as those of the oil management systems 1A, 1B, and 1C according to the first to third embodiments.

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

Therefore, the operating state of the engine after the special driving mode is selected is reflected in the oil replacement timing, and the oil replacement recommendation timing can be corrected to a more appropriate timing.

[Embodiment 5]
[Configuration of Oil Management System According to Embodiment 5]
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 for charging the drive battery with electricity generated by the engine 10. The charge mode selection device 40 is composed of, for example, an EV mode selector switch provided near the selector lever. The charge mode is, for example, a mode called battery charge mode.

The correction unit 32E corrects the predicted fuel consumption amount to decrease when the charge mode is selected. Although the correction amount is predetermined, it can be arbitrarily determined depending on the conditions. For example, the correction is made so that the amount of fuel in the charge mode is reduced. Other configurations are the same as those of the oil management systems 1A, 1B, 1C, and 1D according to the first to fourth embodiments.

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

Therefore, the operating state of the engine 10 after the charge mode is selected is reflected in the oil replacement timing, and the oil replacement recommendation timing can be corrected to a more appropriate timing.

[Embodiment 6]
[Configuration of Oil Management System According to Embodiment 6]
The oil management system 1F according to Embodiment 6 includes a traction input device 42 for inputting traction of another vehicle, as shown in FIG. The traction input device 42 is configured by, for example, a traction switch provided in the driver's seat.

When towing is input (step S61: Yes), the correction unit 32F corrects the predicted fuel consumption amount to decrease (step S62). Although the correction amount is predetermined, it can be arbitrarily determined depending on the conditions. For example, correction is made so that the amount of fuel required for towing is reduced. 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.

[Operation of Oil Management System 1F]
In the oil management system 1F according to the sixth embodiment, as shown in FIG. 12, when traction is input from the traction input device 42, the correction unit 32F corrects the predicted fuel consumption to decrease. 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.

Therefore, the operating state of the engine 10 after the traction input is reflected in the oil replacement timing, and the oil replacement recommendation timing can be corrected to a more appropriate timing.

[Embodiment 7]
[Configuration of Oil Management System According to Embodiment 7]
As shown in FIG. 13, in the oil management system 1G according to the seventh embodiment, the input device 18 can input the end of filter replacement and the number of oil replacements leading up to filter replacement (hereinafter referred to as "set number of replacements"). The replacement notification device 22 is capable of notifying the replacement recommendation of the filter according to an instruction from the vehicle control device 20 .

The vehicle control device 20 has a counting section 44 , a replacement frequency comparing section 46 , and a filter replacement recommendation instructing section 48 . The counting unit 44 is configured to count the number of times of oil replacement from the end of filter replacement (hereinafter referred to as "actual number of times of replacement") based on the end of filter replacement and the end of oil replacement input from the input device 18. The number-of-replacements comparison unit 46 is configured to compare the actual number of replacements counted by the counting unit 44 with the set number of replacements 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 replacement recommendation of the filter when the actual number of replacement times reaches the set number of replacement times. 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.

[Operation of oil management system 1G]
As shown in FIG. 14, in the oil management system 1G according to the seventh embodiment, the set number of oil replacement times leading to filter replacement is input from the input device 18 (step S71) (preparation step).

In the oil management system 1G according to the seventh embodiment, when the completion of oil replacement is input from the input device 18 (step S72: Yes), the count unit 44 adds the number of oil replacements (one) to the actual number of oil replacements (step S73). Next, the number-of-replacements comparison unit 46 compares the actual number of replacements counted by the counting unit 44 with the set number of replacements input by the input device 18 (step S74).

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

When the oil change operation is carried out (step S76) and the completion of filter replacement is input from the input device 18 (step S77), a series of operations is completed (filter replacement is completed). Hereafter, this series of operations ends. 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.

[Effect of oil management system 1G]
According to the oil management system 1G according to the seventh embodiment, even in a vehicle that can generate power using the engine 10 as a power source while the vehicle is stopped, replacement of the filter is recommended more appropriately depending on the operating state of the engine 10. can be notified.

1A to 1G Oil management system 10 Engine 12 Engine control device 14 Travel distance measurement device 16 Fuel measurement device 18 Input device 20 Vehicle control device 22 Replacement notification device 24 Actual fuel consumption calculation unit 26 Engine travel distance calculation unit 28 Actual fuel consumption rate Calculation unit 30 Predicted fuel consumption calculation units 32A to 32F Correction unit 34 Fuel consumption comparison unit 36 Replacement recommendation instruction unit 38 Driving mode selection device 40 Charge mode selection device 42 Traction input device 44 Count unit 46 Replacement frequency comparison unit 48 Filter replacement Recommended indication part

Claims (7)

an engine control device for detecting running and stopping of the engine;
a mileage measuring device for measuring the mileage of a vehicle;
a fuel measuring device for measuring the amount of fuel in the fuel tank;
an input device for inputting a predicted fuel consumption rate, an oil change end, and the oil change mileage;
a vehicle control device;
An oil management system comprising an oil replacement notification device that notifies an oil replacement recommendation according to an instruction from the vehicle control device,
The vehicle control device includes:
an actual fuel consumption calculation unit that calculates the actual fuel consumption from the end of the oil replacement based on the amount of change in the amount of fuel in the fuel tank;
an engine travel distance calculation unit that calculates an engine travel distance powered by the engine based on the operation and stop of the engine and the post-change travel distance from the completion of the oil replacement;
an actual fuel consumption rate calculation unit that calculates an actual fuel consumption rate based on the engine travel distance 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 amount to decrease when the actual fuel consumption rate is equal to or lower than the predicted fuel consumption rate;
a fuel consumption amount comparison unit that compares the actual fuel consumption amount and the predicted fuel consumption amount;
an oil replacement recommendation instructing unit that instructs the oil replacement notification device to notify the oil replacement recommendation when the actual fuel consumption reaches the predicted fuel consumption. The engine control device is capable of detecting the rotation speed of the engine,
A first period and a second period following the first period are defined in advance in the vehicle control device,
Acceleration is performed 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 a predetermined first rotational speed, and the rotational speed within the second period is accelerated. 2 . The oil management system according to claim 1 , wherein the correction unit corrects the predicted fuel consumption amount to decrease when is maintained at or above the rotational speed at the end of the first period. The engine control device is capable of detecting a throttle opening of the engine,
A third period and a fourth period following the third period are defined in advance in the vehicle control device,
When the throttle opening becomes equal to or greater than the predetermined opening during the third period, and the throttle opening during the fourth period is maintained equal to or greater than the predetermined opening, the correction unit , correcting the predicted fuel consumption so as to decrease;
3. An oil management system according to claim 1 or 2. Equipped with a driving mode selection device that enables selection of a special driving mode with improved acceleration response compared to the normal driving mode set at the time of shipment from the factory.
4. The oil management system according to any one of claims 1 to 3, wherein said correction unit corrects said predicted fuel consumption amount to decrease when said special driving mode is selected. a charge mode selection device that enables selection of a charge mode for charging a drive battery with electricity generated by the engine;
5. The oil management system according to any one of claims 1 to 4, wherein said correction unit corrects said predicted fuel consumption amount to decrease when said charge mode is selected. Equipped with a traction input device for inputting traction of other vehicles,
The correction unit corrects the predicted fuel consumption amount to decrease when the traction is input.
6. An oil management system according to any one of claims 1-5. The input device is capable of inputting the completion of filter replacement and the set number of times of oil replacement leading to replacement of the filter,
The replacement notification device is capable of notifying a filter replacement recommendation according to an instruction from the vehicle control device,
The vehicle control device includes:
a counting unit that counts the actual number of times of oil replacement from the end of replacement of the filter based on the end of replacement of the filter and the end of replacement of the oil;
a replacement frequency comparison unit that compares the actual replacement frequency and the set replacement frequency;
7. The filter replacement recommendation unit according to claim 1, further comprising a filter replacement recommendation instructing unit that instructs the replacement notification device to notify the replacement recommendation of the filter when the actual number of replacement times reaches the set number of replacement times. Oil management system as described.

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