CN115335590A - Oil amount detection device and vehicle - Google Patents
Oil amount detection device and vehicle Download PDFInfo
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- CN115335590A CN115335590A CN202180022625.6A CN202180022625A CN115335590A CN 115335590 A CN115335590 A CN 115335590A CN 202180022625 A CN202180022625 A CN 202180022625A CN 115335590 A CN115335590 A CN 115335590A
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- 238000001514 detection method Methods 0.000 title claims abstract description 92
- 239000003921 oil Substances 0.000 claims description 318
- 230000005856 abnormality Effects 0.000 claims description 40
- 238000002485 combustion reaction Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 16
- 230000002159 abnormal effect Effects 0.000 claims description 14
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 description 21
- 239000000446 fuel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
- F01M11/12—Indicating devices; Other safety devices concerning lubricant level
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The oil amount detection device is provided with: an oil level change determination unit that determines whether or not the amount of oil level change is within a first range; an operating state determining unit that determines whether or not a parameter relating to the operating state of the vehicle is within a second range; and an oil amount detection unit that detects the amount of oil when the amount of change in the oil level is within a first range and a parameter relating to the operating state is within a second range.
Description
Technical Field
The present disclosure relates to an oil amount detection device and a vehicle.
Background
Conventionally, a vehicle is provided with an oil reservoir that stores lubricating oil to be supplied to an internal combustion engine mounted on the vehicle. If the amount of lubricating oil (hereinafter referred to as "oil amount") in the oil reservoir is insufficient, lubrication shortage may occur in the internal combustion engine. Therefore, an oil level position detecting unit is provided in the oil reservoir, and the amount of oil in the oil reservoir is detected by detecting the position of the surface of the lubricating oil in the oil reservoir (hereinafter referred to as "oil level").
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2005-69079.
Disclosure of Invention
Problems to be solved by the invention
However, the variation of the oil level in the oil reservoir increases depending on the traveling state of the vehicle such as sudden acceleration or sudden braking of the vehicle, and the state of the traveling road on which the vehicle travels. Therefore, if the oil amount is detected based on the detection result of the oil level position detecting unit, the oil amount in the oil reservoir may not be accurately detected.
In the configuration described in patent document 1, since the position of the oil level based on the map prepared in advance is used, there is a possibility that the position may deviate from the actual position of the oil level in the oil reservoir.
An object of the present disclosure is to provide an oil amount detection device capable of accurately detecting the amount of oil in an oil reservoir, and a vehicle.
Means for solving the problems
The oil amount detection device according to the present disclosure detects an amount of oil in an oil reservoir mounted on a vehicle, and includes:
an oil level change determination unit that determines whether or not an amount of change in the oil level of the oil reservoir is within a first range;
an operating state determining unit that determines whether or not a parameter relating to an operating state of the vehicle is within a second range; and
and an oil amount detection unit that detects the amount of oil when the amount of change in the oil level is within the first range and the parameter relating to the operating state is within the second range.
The vehicle according to the present disclosure includes:
an internal combustion engine;
an oil reservoir that stores lubricating oil supplied to the internal combustion engine; and
the oil amount detection device is provided.
Effects of the invention
According to the present disclosure, the amount of oil in the oil reservoir can be accurately detected.
Drawings
Fig. 1 is a block diagram showing a configuration of a vehicle to which a fuel amount detection device according to an embodiment of the present disclosure is applied;
fig. 2 is a graph showing the detection result of the amount of oil with respect to time;
fig. 3 is a flowchart showing an example of the operation of the oil amount detection control in the oil amount detection device.
Detailed Description
Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Fig. 1 is a block diagram showing a configuration of a vehicle 1 to which a fuel amount detection device 100 according to an embodiment of the present disclosure is applied.
As shown in fig. 1, a vehicle 1 is a commercial vehicle such as a truck or a bus, and includes an internal combustion engine 2, an oil reservoir 3, an oil level position detection unit 4, an operating state detection unit 5, a warning unit 6, and an oil amount detection device 100. The internal combustion engine 2 is, for example, a diesel engine and includes an oil reservoir 3 and an oil level position detection unit 4 therein.
The oil reservoir 3 is an oil pan that stores the lubricating oil supplied to the internal combustion engine 2, and is provided at the bottom of the internal combustion engine 2. The lubricating oil stored in the oil reservoir 3 is supplied to each part of the internal combustion engine 2, and then returned to the oil reservoir 3.
The oil level position detecting unit 4 is a known sensor that detects the position of the oil level in the oil reservoir 3.
The operating state detecting unit 5 is, for example, a known acceleration sensor that detects the acceleration of the vehicle 1.
The warning unit 6 is, for example, a multimeter or the like mounted on the vehicle 1, and when the amount of oil in the oil reservoir 3 is abnormal (excessive or insufficient), a lamp is turned on to warn the driver of the vehicle 1 of the abnormal amount of oil.
The oil amount detection device 100 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and an input/output circuit (not shown). The oil amount detection device 100 is configured to detect the amount of oil in the oil reservoir 3 based on a preset program.
The oil amount detection device 100 includes an oil level change determination unit 110, an operating state determination unit 120, a filter processing unit 130, an oil amount detection unit 140, an abnormality determination unit 150, and a warning execution unit 160.
The oil level change determining unit 110 sequentially acquires the detection results of the oil level position detecting unit 4, and determines whether or not the amount of change in the oil level of the oil reservoir 3 is within the first range. The oil level variation is a difference between the first oil level position and the second oil level position. The first oil level position is the latest oil level position acquired from the oil level position detection unit 4.
The second oil level position is stored in a storage unit (not shown) or the like, and is the oil level position detected by the oil level position detection unit 4 before the latest oil level position (first oil level position) is acquired. Specifically, the second oil level position is the oil level position when the oil level change determining unit 110 determines that the amount of oil level change is within the first range before the latest oil level position (first oil level position) is acquired.
The first range is a range in which the vibration amplitude of the oil level in the oil reservoir 3 is small and the amount of change in the oil level of the oil level can be detected with high accuracy by the oil level position detection unit 4, and is appropriately set. The first range is, for example, a range in which the absolute values of the upper limit value (positive side value) and the lower limit value (negative side value) are equal.
When the oil level change determining unit 110 determines that the amount of change in the oil level exceeds the first range, the oil level in the oil reservoir 3 cannot be detected with high accuracy, and therefore, the second oil level position is maintained at the original value without changing the oil level. The oil level change determination unit 110 can accurately detect the oil level in the oil reservoir 3 when it is determined that the amount of change in the oil level is within the first range, and therefore, the second oil level position is updated to the first oil level position when the oil level changes.
The operating state detecting unit 5 sequentially acquires the parameters related to the operating state of the vehicle 1 (the acceleration of the vehicle 1), and the operating state determining unit 120 determines whether or not the parameters are within the second range.
The second range is a range of acceleration in which the vibration amplitude of the oil surface in the oil reservoir 3 is small, and is a range that can be appropriately set. The second range is, for example, a range in which the absolute values of the upper limit value (positive side value) and the lower limit value (negative side value) are equal.
The filter processing unit 130 performs filter processing on the detection value of the oil surface position detection unit 4. Specifically, the filter processing unit 130 sequentially acquires the detection values of the oil surface position detection unit 4, and performs, for example, 1-time delay-system filter processing (low-pass filter processing) on the acquired detection values.
The filter processing unit 130 calculates a filter processed value by performing filter processing on the latest output value (first oil level position) of the oil level position detecting unit 4, for example, based on a past processed value obtained by applying filter processing to the past output value of the oil level position detecting unit 4. In addition, the filtering process of the 1 st-order delay system can use a known method.
The oil amount detection unit 140 detects the amount of oil in the reservoir unit 3 when the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range. Specifically, the oil amount detection unit 140 detects the oil amount in the oil reservoir 3 based on the time during which the state in which the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range continues.
More specifically, the oil amount detection unit 140 detects the amount of oil in the oil reservoir 3 when the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range continues for a first predetermined time or longer. The first predetermined time is a time to which the oil level of the oil reservoir 3 can be recognized to be in a stable state, and can be set as appropriate.
When detecting the oil amount, the oil amount detection unit 140 sets the oil amount to the filter value obtained by performing the filter process on the latest output value of the oil level position detection unit 4.
The oil amount detection unit 140 does not detect the amount of oil in the reservoir unit 3 when the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range does not continue for the first predetermined time. The oil amount detection unit 140 resets the duration of the state in which the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range.
The abnormality determination unit 150 determines whether the oil amount in the oil reservoir 3 is abnormal based on the time during which the state in which the oil amount detected by the oil amount detection unit 140 is outside the third range continues.
The third range is, for example, a range in which the upper limit value is set to a value smaller than the minimum value at which the lubricant is likely to leak from the oil reservoir 3, and the lower limit value is set to a value larger than the maximum value in a state in which the lubricant is insufficient from the oil reservoir 3.
Specifically, the abnormality determination unit 150 starts the abnormality determination of the oil amount when the oil amount at the first oil level position is outside the third range.
The abnormality determination unit 150 determines that the amount of oil is excessive when the state in which the amount of oil is greater than the upper limit value of the third range continues for at least a second predetermined time. The abnormality determination unit 150 determines that the amount of oil is insufficient when the state in which the amount of oil is less than the lower limit value of the third range continues for at least a second predetermined time. The second predetermined time period can be set arbitrarily, for example, a time period during which the state in which the oil amount abnormality in the oil reservoir 3 can be allowed to continue. The second prescribed time corresponds to the "prescribed time" of the present disclosure.
The abnormality determination unit 150 determines that the oil amount is not abnormal when the state in which the oil amount is outside the third range does not continue for the second predetermined time. Then, the determination time for determining the abnormality of the oil amount is reset.
For example, as shown in fig. 2, the oil amount is initially outside the third range at time t 1. The abnormality determination unit 150 starts abnormality determination of the oil amount. Specifically, each time the oil amount detected by the oil amount detection unit 140 is acquired, the abnormality determination unit 150 monitors whether the oil amount is outside the third range.
At time t2, for example, when the acquired oil amount is within the third range, the abnormality determination unit 150 determines that the oil amount is not abnormal, and resets the determination time for abnormality determination. After that, the abnormality determination unit 150 acquires the oil amount detected by the oil amount detection unit 140 again.
Then, at time t3, when the acquired oil amount is outside the third range again, the abnormality determination unit 150 resumes the abnormality determination of the oil amount. When the determination time from the start of the abnormality determination continues for a second predetermined time (see time t 4), the abnormality determination unit 150 determines that the oil amount is abnormal.
The abnormality determination unit 150 may exclude the amount of oil detected by the oil amount detection unit 140 from the determination target according to the traveling road of the vehicle 1. The information on the traveling road of the vehicle 1 is acquired by, for example, map information stored in a storage unit (not shown), information acquired from an external GPS (Global Positioning System) or the like, and the like.
For example, when the traveling road of the vehicle 1 is a road with many curves, a road with many steps, or a road with a steep slope, the oil level of the oil reservoir 3 is likely to vibrate, and therefore, even if the oil amount is detected by the oil amount detection unit 140, the accuracy of the abnormality determination may be poor.
Therefore, in such a case, by excluding the oil amount from the determination target, it is possible to reduce the erroneous determination by the abnormality determination unit 150.
The warning execution unit 160 executes warning processing when the abnormality determination unit 150 determines that the amount of oil in the oil reservoir 3 is abnormal. The warning process is a process of outputting a warning execution command to the warning unit 6, for example.
For example, in the example shown in fig. 2, after the abnormality determination by the abnormality determination unit 150 is performed at time t4, the warning execution unit 160 executes warning processing to warn the driver of an abnormality in the oil amount by the warning unit 6.
Next, an example of the operation of the oil amount detection control in the oil amount detection device 100 will be described. Fig. 3 is a flowchart showing an example of the operation of the oil amount detection control in the oil amount detection device 100. The processing in fig. 3 is appropriately executed when the vehicle 1 starts operating, for example.
As shown in fig. 3, the oil amount detection device 100 acquires a first oil level position (step S101). The oil amount detection device 100 calculates a filter processed value of the acquired first oil surface position (step S102).
Next, the oil amount detection device 100 determines whether or not the amount of change in the oil level, which is the difference between the first oil level position and the second oil level position, is within a first range (step S103). The first oil level position related to the amount of change in oil level is the first oil level position acquired in step S101. The second oil level position is stored in the storage unit or the like at the time of step S103.
As a result of the determination, if the amount of change in the oil level is not within the first range (no at step S103), the oil amount detection device 100 maintains the value at step S103 without updating the second oil level position (step S104). After step S104, the process shifts to step S107.
On the other hand, if the amount of change in the oil level is within the first range (yes in step S103), the oil amount detection device 100 updates the second oil level position to the first oil level position (step S105).
Next, the oil amount detection device 100 determines whether the acceleration is within the second range (step S106). If the acceleration is not within the second range as a result of the determination (no at step S106), the oil amount detection device 100 resets the duration of the state in which the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range (step S107). After step S107, the process returns to step S101.
On the other hand, when the acceleration is within the second range (yes in step S106), the oil amount detection device 100 determines whether or not the duration of the state in which the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range is equal to or longer than a first predetermined time (step S108).
If the duration is less than the first predetermined time as a result of the determination (no at step S108), the process returns to step S101. On the other hand, if the duration is equal to or longer than the first predetermined time (yes in step S108), the oil amount detection device 100 determines whether or not the filter processed value is outside the third range (step S109). The filter processing value is a value obtained by performing filter processing on the first oil level position, and is calculated in step S102.
If the result of the determination is that the filter processed value is not outside the third range (no at step S109), the determination time as to whether the oil amount is abnormal is reset (step S110).
On the other hand, when the filter processed value is outside the third range (yes in step S109), the oil amount detection device 100 determines whether or not the determination time as to whether or not the oil amount is abnormal is equal to or longer than a second predetermined time (step S111).
If the determination result is that the determination time is not equal to or longer than the second predetermined time (no at step S111), the process returns to step S101. On the other hand, if the determination time is equal to or longer than the second predetermined time (yes at step S111), the oil amount detection device 100 executes a warning process (step S112).
After step S110 or step S112, the present control ends. After the end of this control, when the vehicle 1 is operating, the process is started again from step S101.
According to the present embodiment configured as described above, since the oil amount in the case where the amount of change in the oil level is within the first range and the acceleration is within the second range is detected, the oil amount in the oil reservoir 3 can be accurately detected.
Further, since the filtering process is performed on the output value of the oil surface position detection unit 4 and the filtered value is set as the oil amount, the oil amount can be detected after removing the noise component and the like.
Further, since the oil amount is detected when the state in which the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range continues for the first predetermined time, the oil amount can be detected by the oil reservoir 3 being in a relatively stable state. As a result, an accurate oil amount can be detected.
Further, since the oil amount is determined to be abnormal when the detected oil amount is outside the third range for the second predetermined time, the oil amount is not immediately determined to be abnormal when the oil amount suddenly falls outside the third range. As a result, the presence or absence of an abnormality in the erroneous determination of the oil amount can be suppressed.
Further, since the warning process is executed when it is determined that the fuel amount is abnormal, the abnormality of the fuel amount can be promptly transmitted to the driver.
In the above embodiment, the acceleration is exemplified as the parameter relating to the operating state of the vehicle 1, but the present disclosure is not limited thereto. For example, the parameter related to the operating state of the vehicle 1 may be the speed of the vehicle 1.
The speed of the vehicle 1 is acquired from, for example, a known speed sensor (operating state detecting unit) that detects the speed of the vehicle 1. The second range is a range corresponding to the speed of the vehicle 1.
For example, when the speed of the vehicle 1 is substantially constant, the change in acceleration is substantially small, and the traveling state of the vehicle 1 is stable, so the oil level of the oil reservoir 3 is also relatively stable. Therefore, by detecting the amount of oil in the oil amount detection device 100 in such a state, the accurate amount of oil can be detected.
The parameter related to the operating state of the vehicle 1 may be the rotation speed of the internal combustion engine 2. The rotation speed of the internal combustion engine 2 is acquired from, for example, a known sensor (operating state detecting unit) that detects the rotation speed of the internal combustion engine 2. The second range is a range corresponding to the rotation speed of the internal combustion engine 2.
For example, when the vehicle 1 is a commercial vehicle such as an overhead vehicle, the vehicle 1 is in a stopped state while the internal combustion engine 2 is kept in operation. When the vehicle 1 is idling, the vehicle 1 is stopped while the internal combustion engine 2 is kept running.
In this case, when the rotation speed of the internal combustion engine 2 is small, the oil level of the oil reservoir 3 is relatively stable because the vibration caused by the rotation of the internal combustion engine 2 is also small. Therefore, by detecting the amount of oil in the oil amount detection device 100 in such a state, the accurate amount of oil can be detected.
The parameter relating to the operating state of the vehicle 1 may be a parameter relating to the traveling state of the vehicle 1. The parameter related to the running state of the vehicle 1 includes, for example, a turning state of the vehicle 1. The turning state of the vehicle 1 is acquired from, for example, a known steering angle sensor (operating state detecting unit) or the like. The second range is a range corresponding to a parameter related to the traveling state of the vehicle 1.
For example, when the vehicle 1 travels in a state with few turns, such as a relatively straight traveling state, the oil level of the oil reservoir 3 is also in a relatively stable state. Therefore, by performing the oil amount detection in the oil amount detection device 100 in such a state, an accurate oil amount can be detected.
Further, in the case where the vehicle 1 travels on a road where the vehicle is repeatedly turned, since the oil level of the oil reservoir 3 also vibrates with the turning of the vehicle 1, when the oil level is detected in such a state, there is a possibility that the oil discharge amount cannot be accurately detected. Therefore, in such a case, the oil amount is not detected, and thus the accuracy of detecting the oil amount can be improved.
The operating state of the vehicle 1 may be determined by combining 2 or more parameters related to the speed of the vehicle 1, the rotation speed of the internal combustion engine 2, and the running state of the vehicle 1. In this way, the detection accuracy of the oil amount detection device 100 can be further improved.
In the above embodiment, the filter processing unit 130 is provided, but the present disclosure is not limited thereto, and the filter processing unit may not be provided.
In the above embodiment, the amount of oil in the oil reservoir 3 is detected when the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range for the first predetermined time or longer, but the present disclosure is not limited thereto. For example, the amount of oil in the oil reservoir may be detected every time the oil level position detection unit and the operating state detection unit detect that the amount of change in the oil level is within the first range and the acceleration of the vehicle 1 is within the second range.
In the above embodiment, the criterion of the determination time in the abnormality determination of the oil amount is set as the second predetermined time, but the second predetermined time may be fixed or may be adjusted according to the situation. For example, in a situation where the speed state of the vehicle 1 does not change or a situation where the state of the internal combustion engine 2 is constant when the vehicle 1 is stopped, it is considered that the abnormality determination may be performed at a short timing, and therefore, in such a situation, the second predetermined time may be set short.
In a situation where the vehicle 1 is traveling on a road with many curves, or in a situation where the operating state of the vehicle 1 is unstable, the frequency of detecting the amount of oil is low, and therefore it is considered necessary to take a long abnormality determination time. Therefore, in such a situation, the second predetermined time can be set to be long.
In the above embodiment, the abnormality determination unit is provided, but the present disclosure is not limited thereto, and the abnormality determination unit may not be provided. In this case, the oil amount detection device may be configured to notify the user of the oil amount so that the user can recognize the oil amount detected by the oil amount detection device. Specifically, a notification unit for notifying the user of the amount of oil may be provided instead of the warning execution unit.
In the above-described embodiment, the oil level change determination unit, the operation state determination unit, the filter processing unit, the oil amount detection unit, the abnormality determination unit, and the warning execution unit are incorporated in the oil amount detection device, but the present disclosure is not limited thereto. For example, an oil level change determination unit, an operation state determination unit, a filter processing unit, an oil amount detection unit, an abnormality determination unit, and a warning execution unit may be provided separately.
In the above embodiment, the oil amount detection device is mounted on the vehicle, but the present disclosure is not limited thereto, and may be a device provided outside the vehicle, for example. In this case, the oil amount detection device and the vehicle may be configured to be communicable.
In the above embodiment, the vehicle 1 is a commercial vehicle, but the present disclosure is not limited thereto, and may be a vehicle other than a commercial vehicle, for example, a passenger vehicle.
In addition, the above embodiments are merely examples of embodying the present disclosure, and the technical scope of the present disclosure should not be construed as being limited to these embodiments. That is, the present disclosure can be implemented in various forms without departing from the gist or main feature thereof.
This application is based on the japanese patent application (japanese patent application 2020-052693) filed on 3/24/2020, the contents of which are incorporated herein by reference in their entirety.
Industrial applicability
The oil amount detection device of the present disclosure is useful as an oil amount detection device capable of accurately detecting the amount of oil in an oil reservoir, and a vehicle.
Description of the symbols
1. Vehicle with a steering wheel
2. Internal combustion engine
3. Oil storage part
4. Oil level position detecting part
5. Operation state detection unit
6. Warning unit
100. Oil quantity detection device
110. Oil level change determining part
120. Operation state determination unit
130. Filter processing unit
140. Oil quantity detecting part
150. Abnormality determination unit
160. Warning execution unit
Claims (10)
1. An oil amount detection device that detects the amount of oil in an oil reservoir mounted on a vehicle, the oil amount detection device comprising:
an oil level change determination unit that determines whether or not an amount of change in the oil level of the oil reservoir is within a first range;
an operating state determination unit that determines whether or not a parameter relating to an operating state of the vehicle is within a second range; and
and an oil amount detection unit that detects the amount of oil when the amount of change in the oil level is within the first range and the parameter relating to the operating state is within the second range.
2. The oil amount detection device according to claim 1, comprising:
a filter processing unit that performs filter processing on an output value of an oil level detection unit that detects an oil level of the oil reservoir,
the oil amount detection unit detects the oil amount based on a filter process value obtained by performing the filter process on a latest output value of the oil level detection unit when the oil amount is detected.
3. The oil amount detecting device according to claim 2,
the filter processing unit calculates the filter processing value based on a past processing value obtained by performing the filter processing on a past output value in the oil level detection unit.
4. The oil amount detection device according to claim 1, comprising:
an abnormality determination unit that determines whether the amount of oil in the oil reservoir is abnormal based on a time during which a state in which the amount of oil detected by the oil amount detection unit is outside a third range continues.
5. The oil amount detecting device according to claim 4,
the abnormality determination unit determines that the amount of oil is excessive when the state in which the amount of oil is greater than the upper limit value of the third range continues for a predetermined time or longer, and determines that the amount of oil is insufficient when the state in which the amount of oil is less than the lower limit value of the third range continues for the predetermined time or longer.
6. The oil amount detection device according to claim 4, comprising:
and an alarm execution unit that executes an alarm process when the abnormality determination unit determines that the amount of oil in the oil reservoir is abnormal.
7. The oil amount detecting device according to claim 4,
the abnormality determination unit excludes the amount of oil detected by the oil amount detection unit from the determination target according to the travel path of the vehicle.
8. The oil amount detecting device according to claim 1,
the oil amount detection unit detects the amount of oil based on a time during which a state in which the amount of change in the oil level is within the first range and the parameter relating to the operating state is within the second range continues.
9. The oil amount detecting device according to claim 1,
the parameter related to the operating state of the vehicle includes at least one of a parameter related to a speed of the vehicle, a rotation speed of an internal combustion engine mounted on the vehicle, and a parameter related to a traveling state.
10. A vehicle is provided with:
an internal combustion engine;
an oil reservoir that stores lubricating oil supplied to the internal combustion engine; and
the oil amount detecting device according to claim 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020052693A JP7276220B2 (en) | 2020-03-24 | 2020-03-24 | Oil level detection device and vehicle |
| JP2020-052693 | 2020-03-24 | ||
| PCT/JP2021/011142 WO2021193365A1 (en) | 2020-03-24 | 2021-03-18 | Oil quantity detection device and vehicle |
Publications (2)
| Publication Number | Publication Date |
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| CN115335590A true CN115335590A (en) | 2022-11-11 |
| CN115335590B CN115335590B (en) | 2024-01-12 |
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| CN202180022625.6A Active CN115335590B (en) | 2020-03-24 | 2021-03-18 | Oil mass detection device and vehicle |
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| Country | Link |
|---|---|
| JP (1) | JP7276220B2 (en) |
| CN (1) | CN115335590B (en) |
| WO (1) | WO2021193365A1 (en) |
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| CN114211952B (en) * | 2021-12-29 | 2023-06-23 | 无锡坦程物联网股份有限公司 | Oil mass data monitoring method and system |
| CN114439575B (en) * | 2022-03-11 | 2023-04-28 | 中国第一汽车股份有限公司 | Method for monitoring engine oil quantity of automobile engine and automobile |
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- 2021-03-18 WO PCT/JP2021/011142 patent/WO2021193365A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2021152344A (en) | 2021-09-30 |
| JP7276220B2 (en) | 2023-05-18 |
| CN115335590B (en) | 2024-01-12 |
| WO2021193365A1 (en) | 2021-09-30 |
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