CN108859741B - Fuel sensor, fuel alarm triggering method and fuel automobile - Google Patents

Fuel sensor, fuel alarm triggering method and fuel automobile Download PDF

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Publication number
CN108859741B
CN108859741B CN201810215707.2A CN201810215707A CN108859741B CN 108859741 B CN108859741 B CN 108859741B CN 201810215707 A CN201810215707 A CN 201810215707A CN 108859741 B CN108859741 B CN 108859741B
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fuel
alarm
distance data
data
time data
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CN108859741A (en
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高伟
樊振洋
刘晓庆
朱黎明
孙锡钰
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Beiqi Foton Motor Co Ltd
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Beiqi Foton Motor Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/0321—Fuel tanks characterised by special sensors, the mounting thereof
    • B60K2015/03217—Fuel level sensors
    • B60K2015/03223—Fuel level sensors comprising at least two level fuel sensors

Abstract

The invention discloses a fuel sensor, a fuel alarm triggering method and a fuel automobile. The fuel sensor includes: the device comprises a controller and a plurality of probes, wherein the detection angle of each probe in the plurality of probes and the relative position relation between the plurality of probes are set according to preset configuration information; each probe is used for detecting distance data between the position of the probe and the liquid level in the fuel tank and time data for acquiring the distance data; and the controller is used for comparing the distance data and the time data acquired from each probe with the previously stored distance data and time data and determining whether to trigger a fuel alarm and/or emergency operation according to the comparison result, wherein the fuel alarm is used for prompting that the fuel quantity in the fuel tank is in an abnormal descending state, and the emergency operation is used for controlling the fuel tank to be in a locking state. The invention solves the technical problem that the fuel alarm can not be sent out in time under the condition that the fuel quantity in the fuel tank is abnormally reduced in the related technology.

Description

Fuel sensor, fuel alarm triggering method and fuel automobile
Technical Field
The invention relates to the field of automobile electric appliances, in particular to a fuel sensor, a fuel alarm triggering method and a fuel automobile.
Background
With the lightweight design of large truck fuel tanks, fuel tanks made of plastic materials are becoming more and more popular. In view of the great volume of fuel tank, in order to prevent that the fuel of whole car is stolen, most drivers can only select the position of being convenient for to keep watch on whether the fuel is stolen to have a rest or encapsulate the fuel tank through adding iron box and tool to lock manually, reduce the stolen risk of fuel.
However, the above operation method not only increases the operation complexity in each refueling, but also has a limited anti-theft capability by simply relying on the lock.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
At least part of embodiments of the invention provide a fuel sensor, a fuel alarm triggering method and a fuel automobile, so as to at least solve the technical problem that the fuel alarm cannot be timely sent out under the condition that the fuel quantity in a fuel tank is abnormally reduced in the related art.
According to an embodiment of the present invention, there is provided a fuel sensor including:
the device comprises a controller and a plurality of probes, wherein the detection angle of each probe in the plurality of probes and the relative position relation between the plurality of probes are set according to preset configuration information; each probe is used for detecting distance data between the position of the probe and the liquid level in the fuel tank and time data for acquiring the distance data; and the controller is used for comparing the distance data and the time data acquired from each probe with the previously stored distance data and time data and determining whether to trigger a fuel alarm and/or emergency operation according to the comparison result, wherein the fuel alarm is used for prompting that the fuel quantity in the fuel tank is in an abnormal descending state, and the emergency operation is used for controlling the fuel tank to be in a locking state.
Optionally, the controller is configured to perform a summation operation using the distance data and the time data collected by each probe to obtain the acquired distance data and time data, read previously stored distance data and time data from a preset storage area, compare the acquired distance data with the previously stored distance data, determine a distance variation amplitude value, and compare the acquired time data with the previously stored time data to determine a time variation amplitude value.
Optionally, the controller is configured to trigger a fuel alarm and/or an emergency operation when the distance variation amplitude value is greater than a first preset threshold value or the time variation amplitude value is greater than a second preset threshold value.
Optionally, the fuel sensor further comprises: a Controller Area Network (CAN) bus transceiver; and the controller is also used for triggering the whole vehicle controller to control the steering lamp of the current vehicle to send an alarm prompt through the bus signal under the condition that the CAN bus transceiver is determined to be connected with the CAN bus of the whole vehicle controller of the current vehicle.
Optionally, the fuel sensor further comprises: an alarm element; and the warning element is used for sending out a fuel warning through an acoustic signal or an optical signal under the control of the controller.
Optionally, the fuel sensor further comprises: a global system for mobile communications (GSM) component; and the controller is also used for prompting the terminal associated with the current vehicle to monitor fuel alarm and/or emergency operation through the GSM component.
Optionally, the fuel sensor further comprises: a backup battery; and the standby battery is used for supplying power to the fuel sensor and triggering power supply alarm under the condition that the power supply device of the current vehicle is determined to be abnormal.
According to one embodiment of the invention, a fuel alarm triggering method is further provided, which includes:
acquiring distance data acquired by each probe in the plurality of probes and time data of the acquired distance data, wherein the detection angle of each probe in the plurality of probes and the relative position relation between the plurality of probes are set according to preset configuration information; comparing the acquired distance data and time data with previously stored distance data and time data to obtain a comparison result; and determining whether to trigger a fuel alarm and/or emergency operation according to the comparison result, wherein the fuel alarm is used for prompting that the fuel quantity in the fuel tank is in an abnormal descending state, and the emergency operation is used for controlling the fuel tank to be in a locking state.
Optionally, comparing the acquired distance data and time data with previously stored distance data and time data, and obtaining a comparison result includes: summing operation is carried out on the distance data and the time data collected by each probe to obtain the obtained distance data and time data; reading previously stored distance data and time data from a preset storage area; comparing the acquired distance data with previously stored distance data to determine a distance variation amplitude value, and comparing the acquired time data with previously stored time data to determine a time variation amplitude value.
Optionally, the determining whether to trigger the fuel alarm and/or the emergency operation according to the comparison result comprises: when the distance change amplitude value is larger than a first preset threshold value or the time change amplitude value is larger than a second preset threshold value, triggering fuel oil alarm and/or emergency operation; and when the distance change amplitude value is smaller than or equal to a first preset threshold value and the time change amplitude value is smaller than or equal to a second preset threshold value, refusing to trigger fuel oil alarm and/or emergency operation.
Optionally, after determining whether to trigger a fuel alarm and/or an emergency operation according to the comparison result, the method further includes: determining that a CAN bus transceiver arranged in a fuel sensor is connected with a CAN bus of a vehicle controller of a current vehicle; and triggering the whole vehicle controller through the bus signal to control a steering lamp of the current vehicle to send an alarm prompt.
Optionally, after determining whether to trigger a fuel alarm and/or an emergency operation according to the comparison result, the method further includes: and prompting a terminal associated with the current vehicle to monitor fuel alarm and/or emergency operation through a GSM (global system for mobile communications) component arranged in the fuel sensor.
Optionally, before acquiring the distance data acquired by each probe of the plurality of probes and the time data of acquiring the distance data, further comprising: determining that a power supply device of the current vehicle is abnormal; and starting a standby battery arranged in the fuel sensor to supply power for the fuel sensor and triggering a power supply alarm.
According to an embodiment of the present invention, there is also provided a fuel-powered vehicle including: the fuel sensor is provided.
In at least some embodiments of the invention, the distance data acquired by each probe in a plurality of probes and the time data of the acquired distance data are acquired, the detection angle of each probe in the plurality of probes and the relative position relation between the plurality of probes are set according to preset configuration information, the acquired distance data and time data are compared with the previously stored distance data and time data to obtain a comparison result, and whether to trigger fuel oil alarm and/or emergency operation is determined according to the comparison result, so that the purpose of integrating the alarm function and/or emergency function in the fuel oil sensor so as to trigger the fuel oil alarm and/or emergency operation in time under the condition that the fuel oil quantity in the fuel oil tank is in an abnormal descending state is achieved, thereby realizing the technical effects of reducing the operation complexity and reminding a user of taking effective measures for the fuel oil alarm in time, and then solved the technical problem that can't send out the fuel warning in time under the condition that the fuel quantity in the fuel tank descends unusually among the correlation technique.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall circuit structure of a sensor according to one embodiment of the present invention;
FIG. 2 is a flow chart of a method of triggering a fuel alarm according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the behavior of a vehicle according to a preferred embodiment of the present invention on a horizontal road;
FIG. 4 is a schematic diagram of a vehicle operating downhill according to a preferred embodiment of the present invention;
fig. 5 is a schematic view of the vehicle during uphill conditions according to a preferred embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic diagram of an overall circuit structure of a sensor according to an embodiment of the present invention, and as shown in fig. 1, a fuel sensor may include, but is not limited to: a plurality of probes (three probes are illustrated in the following figures, wherein the probes are respectively a front probe, a middle probe and a rear probe), a controller (for example, a single chip microcomputer controller), a Controller Area Network (CAN) bus transceiver, a GSM assembly, an alarm element (for example, a buzzer), a voltage stabilizer and a built-in backup battery. The specific functions of each component in the fuel sensor are as follows:
(1) the detection angle of each probe in the plurality of probes and the relative position relation between the plurality of probes are set according to preset configuration information, wherein each probe is used for detecting distance data between the position of the probe and the liquid level in the fuel tank and acquiring time data of the distance data.
In the usual case, if there are only two radars, these are located in a central position above the tank and a fixed angle is formed between them. If there are more than two radars, the radars are at a fixed angle to each other and can be located anywhere above the fuel tank.
(2) The controller may include, but is not limited to: and the processing device comprises a Microprocessor (MCU) or a programmable logic device (FPGA) and the like, and is used for comparing the distance data and the time data acquired from each probe with the previously stored distance data and time data and determining whether to trigger a fuel alarm and/or emergency operation according to the comparison result, wherein the fuel alarm is used for prompting that the fuel quantity in the fuel tank is in an abnormal descending state, and the emergency operation is used for controlling the fuel tank to be in a locking state.
Specifically, firstly, the controller performs summation operation by using distance data and time data acquired by each probe to obtain acquired distance data and time data. Second, the controller reads previously stored distance data and time data from a preset storage area. Again, the controller compares the acquired distance data with previously stored distance data, determines a distance variation amplitude value and compares the acquired time data with previously stored time data, determines a time variation amplitude value. And then, when the distance change amplitude value is larger than a first preset threshold value or the time change amplitude value is larger than a second preset threshold value, the controller triggers fuel alarm and/or emergency operation.
(3) And the warning element is used for sending out a fuel warning through an acoustic signal or an optical signal under the control of the controller.
In the practical application process, the acquisition principle of the radar probes is basically the same as the principle of the reversing radar, and the three radar probes need to form a certain angle for arrangement, wherein the arrangement angle is fixed. Therefore, on a horizontal road surface, the distance detected by the front probe and the rear probe is the same and greater than the distance detected by the middle probe. The acquisition signal of the radar probe has two variables, which are respectively: the temporal algebraic sum and the distance algebraic sum. And each variable is subjected to addition and calculation by three sub-variables (each sub-variable corresponds to one radar probe) respectively to obtain a final value, and the final value is stored in a preset array. If the comparison result of the currently acquired data and the previously stored data shows that the currently acquired data is obviously increased, the abnormality of the fuel consumption can be judged according to the result, and then an alarm element is triggered to give out sound and light alarm.
(4) The CAN bus transceiver CAN be connected with a CAN bus of a vehicle control unit of the current vehicle. The controller triggers the whole vehicle controller to control the steering lamp of the current vehicle to flash through the bus signal to send an alarm prompt.
(5) The GSM module uses international modules, usually operated by printf commands, and a mini-phone card is built in. The controller can prompt the terminal associated with the current vehicle to monitor the fuel alarm through the GSM component. The terminal can be terminal equipment such as a smart phone (e.g., an Android phone, an iOS phone), a tablet computer, a palm computer and a Mobile Internet Device (MID). For example: the controller can send a short message or upload data to the associated mobile phone through the GSM component, and can control the GSM component to initiate a call to the terminal through the pre-bound user mobile phone number when the fuel alarm is detected.
(6) And the standby battery is used for supplying power to the fuel sensor and triggering power supply alarm under the condition that the power supply device of the current vehicle is determined to be abnormal.
The standby battery is represented by a capacitor in the figure, and the functions of the standby battery are as follows: when the breakage of the wire harness is detected and the external power supply (such as the power supply of a storage battery) is suddenly lost, the standby battery supplies power to the system, and the alarm element is directly triggered to send out an alarm signal. When the voltage of the standby battery is lower, the power can be supplied by the storage battery.
(7) And the voltage stabilizer is used for converting the 12V voltage of the external power supply into 5V voltage suitable for the fuel sensor.
In the above operating environment, an embodiment of the present invention also provides an embodiment of a method for triggering a fuel alarm, and it should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system, such as a set of computer-executable instructions, and that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from the order shown.
Fig. 2 is a flowchart of a fuel alarm triggering method according to an embodiment of the present invention, as shown in fig. 2, the method includes the following steps:
step S22, acquiring distance data acquired by each probe in a plurality of probes and time data of the acquired distance data, wherein the detection angle of each probe in the plurality of probes and the relative position relation between the plurality of probes are set according to preset configuration information;
step S24, comparing the acquired distance data and time data with the previously stored distance data and time data to obtain a comparison result;
and step S26, determining whether to trigger a fuel alarm and/or an emergency operation according to the comparison result, wherein the fuel alarm is used for prompting that the fuel quantity in the fuel tank is in an abnormal descending state, and the emergency operation is used for controlling the fuel tank to be in a locking state.
Through the steps, the distance data acquired by each probe in the plurality of probes and the time data of the acquired distance data can be acquired, the detection angle of each probe in the plurality of probes and the relative position relation between the plurality of probes are set according to the preset configuration information, the acquired distance data and the acquired time data are compared with the previously stored distance data and the previously stored time data to obtain a comparison result, and whether the fuel oil alarm and/or emergency operation is triggered or not is determined through the comparison result, so that the aim of integrating the alarm function and/or the emergency function in the fuel oil sensor so as to trigger the fuel oil alarm and/or emergency operation in time under the condition that the fuel oil quantity in the fuel oil tank is in an abnormal descending state is fulfilled, and the technical effects of reducing the operation complexity and reminding a user of taking effective measures for the fuel oil alarm in time are realized, and then solved the technical problem that can't send out the fuel warning in time under the condition that the fuel quantity in the fuel tank descends unusually among the correlation technique.
Alternatively, in step S24, comparing the acquired distance data and time data with the previously stored distance data and time data, and obtaining the comparison result may include performing the following steps:
step S241, summing the distance data and the time data acquired by each probe to obtain the acquired distance data and time data;
step S242, reading previously stored distance data and time data from a preset storage area;
in step S243, the acquired distance data is compared with the previously stored distance data to determine a distance variation amplitude value, and the acquired time data is compared with the previously stored time data to determine a time variation amplitude value.
Based on the combination of the radar probe technology, the CAN bus architecture technology and the GSM component, the fuel quantity in the fuel tank is collected through the radar probe technology. And the controller acquires signals acquired by the three radar probes and performs data integration. Then, an accumulative method is used, algebraic sums are calculated, and comparison is carried out for multiple times to determine whether an abnormity occurs. And if the abnormality occurs, triggering an alarm element to send out an alarm.
Optionally, in step S26, determining whether to trigger the fuel alarm and/or the emergency operation according to the comparison result may include the following steps:
step S261, when the distance change amplitude value is larger than a first preset threshold value or the time change amplitude value is larger than a second preset threshold value, a fuel oil alarm and/or emergency operation is triggered;
and step S262, when the distance change amplitude value is less than or equal to a first preset threshold value and the time change amplitude value is less than or equal to a second preset threshold value, refusing to trigger fuel oil alarm and/or emergency operation.
Fig. 3 is a schematic diagram of the operating condition of the vehicle on a horizontal road according to a preferred embodiment of the present invention, as shown in fig. 3, assuming that the detection distance of the front probe is L1 and the detection time is t1, the detection distance of the middle probe is L2 and the detection time is t2, the detection distance of the rear probe is L3 and the detection time is t3, the included angle between L1 and L2 is a, and the included angle between L3 and L2 is a, so that signals collected by the three radar probes can be obtained by the controller after L1-L3-L2/cos a and t 1-t 3-2/cos a.
The initial maximum oil consumption is recorded through the setting and learning functions, and the initial maximum oil consumption can be continuously refreshed and learned according to various factors (such as the type of the vehicle, the driving habits of a driver and the use frequency of the vehicle), so that the target maximum oil consumption is obtained. And when detecting that the abnormal descending speed of the fuel liquid level far exceeds the normal descending speed corresponding to the recorded target maximum fuel consumption, for example: an abnormal descent speed of five times the normal descent speed may trigger an alarm signal, i.e. emit a loud sound of about 75 dB.
When the whole vehicle is in an uphill or downhill working condition, the controller calculates data acquired by the three radar probes and accumulates distance and time as the three radar probes are adopted for data acquisition. It is normal if the distance accumulation is within a suitable range compared to the previously stored data and the time accumulation is also within a suitable range compared to the previously stored data.
Fig. 4 is a schematic diagram of the operation conditions of the vehicle during downhill driving according to a preferred embodiment of the present invention, as shown in fig. 4, although L1 and L3 are changed compared to a horizontal road, the distance algebraic sum Σ L is L1 + L2 + L3 is not changed and the time algebraic sum Σ t is t1+ t2+ t3 is not changed, so that a false alarm generated by the sensor due to the downhill driving condition is not generated.
Fig. 5 is a schematic diagram of an operation condition when the vehicle ascends a slope according to a preferred embodiment of the present invention, as shown in fig. 5, although L1 and L3 change compared with a horizontal road, the distance algebraic sum Σ L is L1 + L2 + L3 and the time algebraic sum Σ t is t1+ t2+ t3 do not change, so that a false alarm generated by the sensor due to the uphill operation condition is not generated.
It should be noted that △L, △ t change accumulation, in other words, the integral of distance and time, can also be used if more accurate calculation results are required.
Optionally, in step S26, after determining whether to trigger the fuel alarm and/or the emergency operation according to the comparison result, the following steps may be further included:
step S27, determining that a CAN bus transceiver arranged in the fuel sensor is connected with a CAN bus of a vehicle controller of the current vehicle;
and step S28, triggering the whole vehicle controller to control the turn lights of the current vehicle to send out an alarm prompt through the bus signal.
If the whole vehicle is provided with CAN bus components such as a vehicle body controller and the like and the CAN bus transceiver CAN be connected with a CAN bus of the whole vehicle controller of the current vehicle, the controller CAN trigger the whole vehicle controller to control a steering lamp of the current vehicle to flash through a bus signal to send an alarm prompt.
Optionally, in step S26, after determining whether to trigger the fuel alarm and/or the emergency operation according to the comparison result, the following steps may be further included:
and step S29, prompting a terminal associated with the current vehicle to monitor fuel alarm and/or emergency operation through a GSM component arranged in the fuel sensor.
If a rapid decrease in the fuel level in the fuel tank is detected (e.g., fuel theft or fuel leakage), the detection may also be sent to the mobile terminal via the GSM module. The CAN interface CAN be reserved for the fuel sensor, if the whole vehicle is provided with the monitoring camera, the vehicle state image CAN be shot through the camera, and the vehicle state image is sent to the mobile terminal, or the user is reminded to realize remote monitoring alarm through Application (APP) of the mobile terminal.
Optionally, before acquiring the distance data acquired by each probe of the plurality of probes and the time data of the acquired distance data in step S22, the method may further include the following steps:
step S20, determining that the power supply device of the current vehicle is abnormal;
and step S21, starting a standby battery arranged in the fuel sensor to supply power for the fuel sensor, and triggering a power supply alarm.
When the breakage of the wire harness is detected and the external power supply (for example, the power supply of the storage battery) is suddenly disappeared, the system power supply is carried out by the standby battery, and the alarm signal is directly triggered at the moment. When the voltage of the standby battery is lower, the power can be supplied by the storage battery.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A fuel sensor, comprising: the device comprises a controller and a plurality of probes, wherein the detection angle of each probe in the plurality of probes and the relative position relation among the plurality of probes are set according to preset configuration information;
each probe is used for detecting distance data between the position of the probe and the liquid level in the fuel tank and acquiring time data of the distance data;
the controller is used for comparing the distance data and the time data acquired from each probe with the previously stored distance data and time data and determining whether to trigger a fuel alarm and/or emergency operation according to the comparison result, wherein the fuel alarm is used for prompting that the fuel quantity in the fuel tank is in an abnormal descending state, and the emergency operation is used for controlling the fuel tank to be in a locking state;
the controller is configured to perform summation operation using distance data and time data acquired by each probe to obtain the acquired distance data and time data, read the previously stored distance data and time data from a preset storage area, compare the acquired distance data with the previously stored distance data, determine a distance variation amplitude value, and compare the acquired time data with the previously stored time data to determine a time variation amplitude value.
2. The fuel sensor of claim 1, wherein the controller is configured to trigger a fuel alarm and/or emergency operation when the distance change amplitude value is greater than a first predetermined threshold value or the time change amplitude value is greater than a second predetermined threshold value.
3. The fuel sensor of claim 2, further comprising: a Controller Area Network (CAN) bus transceiver;
the controller is further used for triggering the whole vehicle controller to control a steering lamp of the current vehicle to send an alarm prompt through a bus signal under the condition that the CAN bus transceiver is determined to be connected with a CAN bus of the whole vehicle controller of the current vehicle.
4. The fuel sensor of claim 1, further comprising: a global system for mobile communications (GSM) component;
the controller is further used for prompting a terminal associated with the current vehicle through the GSM component to monitor the fuel alarm and/or emergency operation.
5. A method for triggering a fuel alarm is characterized by comprising the following steps:
acquiring distance data between the position of each probe in a plurality of probes and the liquid level in a fuel tank and time data of the acquired distance data, wherein the detection angle of each probe in the plurality of probes and the relative position relation between the plurality of probes are set according to preset configuration information;
comparing the acquired distance data and time data with previously stored distance data and time data to obtain a comparison result;
determining whether to trigger a fuel alarm and/or emergency operation according to the comparison result, wherein the fuel alarm is used for prompting that the fuel quantity in the fuel tank is in an abnormal descending state, and the emergency operation is used for controlling the fuel tank to be in a locking state;
wherein, comparing the acquired distance data and time data with the previously stored distance data and time data to obtain the comparison result comprises: summing operation is carried out by adopting the distance data and the time data collected by each probe to obtain the obtained distance data and time data; reading the previously stored distance data and time data from a preset storage area; comparing the acquired distance data with the previously stored distance data to determine a distance variation amplitude value, and comparing the acquired time data with the previously stored time data to determine a time variation amplitude value.
6. The method of claim 5, wherein determining whether to trigger a fuel alarm and/or emergency operation based on the comparison comprises:
when the distance change amplitude value is larger than a first preset threshold value or the time change amplitude value is larger than a second preset threshold value, triggering fuel oil alarm and/or emergency operation;
and when the distance change amplitude value is smaller than or equal to a first preset threshold value and the time change amplitude value is smaller than or equal to a second preset threshold value, refusing to trigger the fuel oil alarm and/or emergency operation.
7. The method of claim 6, after determining whether to trigger a fuel alarm and/or emergency operation based on the comparison, further comprising:
determining that a Controller Area Network (CAN) bus transceiver arranged in a fuel sensor is connected with a CAN bus of a vehicle controller of a current vehicle;
and triggering the whole vehicle controller through a bus signal to control a steering lamp of the current vehicle to send an alarm prompt.
8. The method of claim 5, further comprising, after determining whether to trigger a fuel alarm and/or emergency operation based on the comparison result:
and prompting a terminal associated with the current vehicle to monitor fuel alarm and/or emergency operation through a global system for mobile communication (GSM) component arranged in the fuel sensor.
9. A fuel-powered vehicle, comprising: a fuel sensor as claimed in any one of claims 1 to 4.
CN201810215707.2A 2018-03-15 2018-03-15 Fuel sensor, fuel alarm triggering method and fuel automobile Active CN108859741B (en)

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