CN109774459A - A kind of vehicle fuel amount abnormal alarm method and device - Google Patents
A kind of vehicle fuel amount abnormal alarm method and device Download PDFInfo
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- CN109774459A CN109774459A CN201910092389.XA CN201910092389A CN109774459A CN 109774459 A CN109774459 A CN 109774459A CN 201910092389 A CN201910092389 A CN 201910092389A CN 109774459 A CN109774459 A CN 109774459A
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Abstract
The invention discloses a kind of vehicle fuel amount abnormal alarm method and devices, and method includes: step 1, judge whether vehicle fuel amount is abnormal；Step 2, the current fired state of detection vehicle；Step 3, when igniting is opened, whether detection fuel oil box switches；Step 4, amount of fuel abnormal alarm, comprising: step 41, when igniting is closed, periodically detect vehicle fuel amount, enter step 1；In the case of amount of fuel exception, amount of fuel abnormal alarm information is issued, and carry out fuel oil alarm voice broadcast and amount of fuel exception message is sent to client terminal by vehicle bus；Step 42, amount of fuel is abnormal, igniting is opened, fuel oil box is not detected switch in the case of, issue amount of fuel abnormal alarm information, and carry out fuel oil alarm voice broadcast and amount of fuel exception message is sent to client terminal by vehicle bus.The present invention can effectively remind the situation of user's vehicle fuel amount exception, reduce the stolen probability of vehicle fuel.
Description
Technical field
The present invention relates to a kind of vehicle operation exception method, more particularly to a kind of vehicle fuel amount abnormal alarm method and
Device.
Background technique
With the exploitation of corporate new car type, super truck, vehicle intellectualized degree is higher and higher, the fuel oil fed back in the market
Stolen phenomenon will also be solved by the means of intelligence, and the corresponding strategy for detecting amount of fuel exception by instrument is most important,
Amount of fuel abnormal phenomenon is urgently to be resolved.
Thus, it is desirable to have a kind of technical solution come overcome or at least mitigate in the drawbacks described above of the prior art at least one
It is a.
Summary of the invention
The purpose of the present invention is to provide a kind of vehicle fuel amount abnormal alarm method and devices to overcome or at least mitigate
At least one of drawbacks described above of the prior art.
To achieve the above object, the present invention provides a kind of vehicle fuel amount abnormal alarm method, and the vehicle fuel amount is different
Normal alarm method includes: step 1, judges whether vehicle fuel amount abnormal: the vehicle fuel amount include preceding amount of fuel information and
The comparison difference of amount of fuel information afterwards, the preceding amount of fuel information and rear amount of fuel information is greater than the first alarming value and is determined as fuel oil
Amount is abnormal；Step 2, the current fired state of detection vehicle；Step 3, in the case of step 2 is judged to lighting a fire opening state,
Whether detection fuel oil box switches；Step 4, amount of fuel abnormal alarm specifically includes: step 41, being determined as in step 2
In the case of closed state, vehicle fuel amount is periodically detected, and enter step 1, also, the rear amount of fuel information is to work as
Before the amount of fuel percent value that detects, the preceding amount of fuel information is that keyed ignition state is in close state and is recorded and protects
The amount of fuel percent value deposited；In the case of step 1 is determined as amount of fuel exception, amount of fuel abnormal alarm information is issued, and
It carries out fuel oil alarm voice broadcast and amount of fuel exception message is sent to client terminal by vehicle bus；Step 42, exist
Step 1 is determined as that amount of fuel is abnormal, step 2 is judged to lighting a fire, and opening state, step 3 are not detected what fuel oil box switched
Under situation, amount of fuel abnormal alarm information is issued, and carry out fuel oil alarm voice broadcast and pass through amount of fuel exception message
Vehicle bus is sent to client terminal.
Further, the period of " the periodically detecting vehicle fuel amount " of step 41 include: from wake-up phase and dormant period,
Wherein, described to be less than the dormant period from the phase of wake-up, it is described to enter step 1 within the wake-up phase.
Further, described to be set as 3s from the wake-up phase, the dormant period is set as 180s.
Further, the vehicle fuel amount abnormal alarm method further include: step 5, be judged to lighting a fire opening in step 2
In the case of state, current vehicle speed is detected；Step 6, it is determined as that amount of fuel exception, step 2 are determined as open shape of lighting a fire in step 1
State, step 3 are determined as the feelings of switching has occurred in fuel oil box, step 5 detects current vehicle speed less than the first preset vehicle speed value
Under shape, by present amount information update and it is stored as the preceding amount of fuel information；Wherein, " the preceding amount of fuel letter in step 1
Breath and the comparison difference of rear amount of fuel information " by the same fuel tank the preceding amount of fuel information and rear amount of fuel information comparison
Difference obtains.
Further, in step 3, by detecting fuel cock status signal, whether detection fuel oil box switches；?
In the case of two kinds of different conditions of the fuel cock status signal appearance switch over, then determine that fuel oil box is cut
It changes.
The present embodiment also provides a kind of vehicle fuel amount anomaly alarming device, the vehicle fuel amount anomaly alarming device packet
Include: fuel sensor is used to detect vehicle fuel amount；Instrument includes vehicle fuel amount abnormal deciding means, is used for
Detect whether vehicle fuel amount is abnormal, is greater than the first alarming value in the comparison difference of preceding amount of fuel information and rear amount of fuel information
Under situation, it is determined as amount of fuel exception；Fired state detection unit is used to detect the current fired state of vehicle；Fuel oil oil
Case switching judging unit, in the case of the fired state detection unit is judged to lighting a fire opening state, detection fuel oil oil
Whether case switches；Output unit is used to be judged to lighting a fire the situation of closed state in the fired state detection unit
Under, whether extremely the vehicle fuel amount abnormal deciding means periodically detects vehicle fuel amount, the rear amount of fuel information
For currently detected amount of fuel percent value, the preceding amount of fuel information is in close state for keyed ignition state and is recorded
With the amount of fuel percent value of preservation, in the case of the vehicle fuel amount abnormal deciding means is determined as amount of fuel exception,
Amount of fuel abnormal alarm information is issued, and fuel oil alarm voice broadcast is carried out by alarm and leads to amount of fuel exception message
It crosses vehicle bus and is sent to client terminal；And for being determined as that amount of fuel is different in the vehicle fuel amount abnormal deciding means
Often, combustion is not detected in the fired state detection unit be judged to lighting a fire opening state, the fuel oil box switching judging unit
In the case of fuel tank switches, amount of fuel abnormal alarm information is issued, and fuel oil alarm voice is carried out by alarm and is broadcast
It responds with and amount of fuel exception message is sent to client terminal by vehicle bus.
Further, the period packet of " the periodically detecting vehicle fuel amount " of the vehicle fuel amount abnormal deciding means
It includes: from the phase of wake-up and dormant period, wherein described to be less than the dormant period, the detection vehicle combustion within the phase of wake-up from the phase of wake-up
Oil mass simultaneously determines whether vehicle fuel amount is abnormal.
Further, described to be set as 3s from the wake-up phase, the dormant period is set as 180s.
Further, the vehicle fuel amount anomaly alarming device further include: vehicle speed sensor is used in the igniting
State detection unit is judged to lighting a fire in the case of opening state, detects current vehicle speed；Instrument also includes preceding amount of fuel information more
New storage unit is used to be determined as amount of fuel exception, fired state inspection in the vehicle fuel amount abnormal deciding means
Survey unit be judged to lighting a fire opening state, the fuel oil box switching judging unit determine fuel oil box have occurred switching and institute
In the case of current vehicle speed that vehicle speed sensor detects is stated less than the first preset vehicle speed value, simultaneously by present amount information update
It is stored as the preceding amount of fuel information；Wherein, " the preceding amount of fuel information is with after in the vehicle fuel amount abnormal deciding means
The comparison difference of amount of fuel information " is worth by the contrast differences of the preceding amount of fuel information and rear amount of fuel information of the same fuel tank
It arrives.
Further, the fuel oil box switching judging unit passes through detection fuel cock status signal, detection fuel oil oil
Whether case switches；In the case of the fuel cock status signal two kinds of different conditions of appearance switch over, then determine
Fuel oil box is switched.
The present invention is using combination instrument combination audible alarm unit and terminal and cell phone application or monitor supervision platform, to realize combustion
The function of oil mass abnormal alarm, and real-time monitoring amount of fuel exception and alarm, it can effectively remind user's vehicle to fire
The situation of oil mass exception reduces the stolen probability of vehicle fuel.
Detailed description of the invention
Fig. 1 is the schematic diagram of vehicle fuel amount anomaly alarming device provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the instrument in vehicle fuel amount anomaly alarming device shown in FIG. 1；
Fig. 3 is the method that the amount of fuel in vehicle fuel amount abnormal alarm method provided in an embodiment of the present invention judges extremely
Schematic diagram；
Fig. 4 is that the main fuel tank and auxiliary fuel tank switching in vehicle fuel amount abnormal alarm method provided in an embodiment of the present invention are sentenced
Disconnected method schematic diagram.
Specific embodiment
In the accompanying drawings, same or similar element is indicated using same or similar label or there is same or like function
Element.The embodiment of the present invention is described in detail with reference to the accompanying drawing.
In the description of the present invention, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the scope of the invention.
As shown in Figures 1 to 4, vehicle fuel amount abnormal alarm method provided in this embodiment includes:
Step 1, judge whether vehicle fuel amount is abnormal: the vehicle fuel amount includes preceding amount of fuel information and rear amount of fuel
The comparison difference of information, the preceding amount of fuel information and rear amount of fuel information is greater than the first alarming value and is determined as amount of fuel exception.
Wherein: rear amount of fuel information can be understood as currently detected amount of fuel.Preceding amount of fuel information can be understood as current upper
The amount of fuel that one-time detection arrives.Preceding amount of fuel information is the fuel oil percent value being recorded in after key OFF in EEPROM, every
40ms detects a fuel oil percent value, which is rear amount of fuel percent value, and rear amount of fuel percent value is not
It is saved in EEPROM.First alarming value can be set as 15% according to the detection accuracy of market survey fuel sensor.Institute
State the comparison difference of preceding amount of fuel information and rear amount of fuel information if more than or be equal to 15%, as fuel leakage, then trigger
The alarm of fuel leakage.
Step 2, the current fired state of detection vehicle.Generally, when car key is in ON state, instrument is in normal work
Make state, the i.e. current igniting opening state of vehicle.When car key is in OFF state, the i.e. current igniting closed state of vehicle.
Step 3, in the case of step 2 is judged to lighting a fire opening state, whether detection fuel oil box switches.It is preferred that
Ground, in step 3, by detecting fuel cock status signal, whether detection fuel oil box switches；In the fuel cock shape
In the case of state signal two kinds of different conditions of appearance switch over, then determine that fuel oil box is switched.
Step 4, amount of fuel abnormal alarm specifically includes:
Vehicle fuel amount is periodically detected, and enter in the case of step 2 judgement is in off state in step 41
Step 1, also, the rear amount of fuel information is currently detected amount of fuel percent value, and the preceding amount of fuel information is key
Spoon fired state is in close state the amount of fuel percent value being recorded and stored；It is determined as amount of fuel exception in step 1
Under situation, amount of fuel abnormal alarm information is issued, and carry out fuel oil alarm voice broadcast and pass through amount of fuel exception message
Vehicle bus is sent to client terminal.Wherein, periodically detecting the period in vehicle fuel amount includes: from wake-up phase T1 and to stop
Dormancy phase T2, wherein it is described to be less than the dormant period T2 from wake-up phase T1, vehicle fuel amount, which is detected, in the phase T1 of wake-up certainly simultaneously sentences
Whether abnormal determine vehicle fuel amount.Such as: described to be set as 3s from wake-up phase T1, the dormant period T2 is set as 180s.
Step 42, it is determined as that amount of fuel is abnormal, step 2 is judged to lighting a fire, and opening state, step 3 are not detected in step 1
In the case of fuel oil box switches, amount of fuel abnormal alarm information is issued, and carries out fuel oil alarm voice broadcast and incites somebody to action
Amount of fuel exception message is sent to client terminal by vehicle bus.
The present embodiment uses combination instrument combination audible alarm unit and terminal and cell phone application or monitor supervision platform, Lai Shixian
The function of amount of fuel abnormal alarm, and real-time monitoring amount of fuel exception and alarm, it can effectively remind user's vehicle
The situation of amount of fuel exception reduces the stolen probability of vehicle fuel.
In one embodiment, vehicle fuel amount abnormal alarm method provided in this embodiment further include:
Step 5, in the case of step 2 is judged to lighting a fire opening state, current vehicle speed is detected.
Step 6, it is determined as that amount of fuel is abnormal, step 2 is judged to lighting a fire, and opening state, step 3 are determined as fuel oil in step 1
In the case of the current vehicle speed that switching has occurred in fuel tank, step 5 detects is less than the first preset vehicle speed value, present amount is believed
Breath updates and is stored as the preceding amount of fuel information；Wherein, " the preceding amount of fuel information and rear amount of fuel information in step 1
Comparison difference " is obtained by the contrast differences value of the preceding amount of fuel information and rear amount of fuel information of the same fuel tank.
As depicted in figs. 1 and 2, vehicle fuel amount anomaly alarming device provided in this embodiment includes 1 He of fuel sensor
Instrument 2, wherein:
Fuel sensor 1 is for detecting vehicle fuel amount.The vehicle fuel amount includes preceding amount of fuel information and rear fuel oil
Information is measured, the ratio of the preceding amount of fuel information and rear amount of fuel information is determined as amount of fuel exception greater than the first alarming value.Its
In: rear amount of fuel information can be understood as currently detected amount of fuel.Preceding amount of fuel information can be understood as current upper one
The secondary amount of fuel detected.Preceding amount of fuel information is the fuel oil percent value being recorded in after key OFF in EEPROM, every
40ms detects a fuel oil percent value, which is rear amount of fuel percent value, and rear amount of fuel percent value is not
It is saved in EEPROM.First alarming value can be set as 15% according to the detection accuracy of market survey fuel sensor.Institute
State the comparison difference of preceding amount of fuel information and rear amount of fuel information if more than or be equal to 15%, as fuel leakage, then trigger
The alarm of fuel leakage.
Instrument 2 has vehicle fuel amount abnormal deciding means 21, fired state detection unit 22, output unit 23 and fuel oil
Fuel tank switching judging unit 24, in which:
Whether vehicle fuel amount abnormal deciding means 21 is abnormal for detecting vehicle fuel amount, in preceding amount of fuel information with after
The comparison difference of amount of fuel information is greater than in the case of the first alarming value, is determined as amount of fuel exception.Wherein: rear amount of fuel information
It can be understood as currently detected amount of fuel, preceding amount of fuel information can be understood as the fuel oil detected the current last time
Amount.First alarming value can be set as 15% according to the detection accuracy of market survey fuel sensor.First alarming value refers to
Be currently detected amount of fuel (rear amount of fuel information) and the last amount of fuel (preceding amount of fuel information) detected difference
Value is 15%.
Fired state detection unit 22 is for detecting and determining the current ignition-on state of vehicle.Wherein, work as car key
In ON state, instrument is in normal operating conditions, the i.e. current igniting opening state of vehicle.When car key is in OFF state, i.e.,
The current igniting closed state of vehicle.
Fuel oil box switching judging unit 24 in the case of fired state detection unit 22 is judged to lighting a fire opening state,
Whether detection fuel oil box switches.Preferably, in step 3, by detecting fuel cock status signal, fuel oil box is detected
Whether switch；In the case of the fuel cock status signal two kinds of different conditions of appearance switch over, then determine to fire
Fuel tank is switched.
Output unit 23 is used for vehicle fuel in the case of fired state detection unit 22 is judged to lighting a fire closed state
Amount abnormal deciding means 21 periodically detects whether vehicle fuel amount is abnormal, and the rear amount of fuel information is currently detected
Amount of fuel percent value, the preceding amount of fuel information are that keyed ignition state is in close state the amount of fuel being recorded and stored
It is abnormal to issue amount of fuel in the case of institute's vehicle fuel amount abnormal deciding means 21 is determined as amount of fuel exception for percent value
Warning message, and carry out fuel oil alarm voice broadcast and amount of fuel exception message is sent to client's end by vehicle bus
End.Wherein, in conjunction with Fig. 3 and Fig. 4, the period of " the periodically detecting vehicle fuel amount " of vehicle fuel amount abnormal deciding means 21
It include: from wake-up phase T1 and dormant period T2, wherein be less than the dormant period T2 from phase T1 is waken up, detect vehicle from wake-up phase T1
Amount of fuel simultaneously determines whether vehicle fuel amount is abnormal.It is set as 3s from phase T1 is waken up, dormant period, T2 was set as 180s.
Output unit 23 is also used to be determined as amount of fuel exception, fired state inspection in vehicle fuel amount abnormal deciding means 21
It surveys be judged to lighting a fire opening state, the fuel oil box switching judging unit 24 of unit 22 and the feelings that fuel oil box switches is not detected
Under shape, by alarm 3 issue amount of fuel abnormal alarm information, and carry out fuel oil alarm voice broadcast and by amount of fuel exception
Message is sent to client terminal by vehicle bus.
The present embodiment uses combination instrument combination audible alarm unit and terminal and cell phone application or monitor supervision platform, Lai Shixian
The function of amount of fuel abnormal alarm, and real-time monitoring amount of fuel exception and alarm, it can effectively remind user's vehicle
The situation of amount of fuel exception reduces the stolen probability of vehicle fuel.
In one embodiment, the vehicle fuel amount anomaly alarming device further includes vehicle speed sensor 5, in which:
Vehicle speed sensor 5 is used in the case of fired state detection unit 22 is judged to lighting a fire opening state, and detection is worked as
Preceding speed.
Instrument 2 also has preceding amount of fuel information update storage unit 25, in which:
Preceding amount of fuel information update storage unit 25 is used to be determined as amount of fuel in vehicle fuel amount abnormal deciding means 21
Abnormal, fired state detection unit 22 be judged to lighting a fire opening state, fuel oil box switching judging unit 24 determines fuel oil box
In the case of switching and the current vehicle speed that detects of vehicle speed sensor 5 has occurred less than the first preset vehicle speed value, by current fuel
Amount information update is simultaneously stored as the preceding amount of fuel information；Wherein, " the preceding fuel oil in vehicle fuel amount abnormal deciding means 21
Measure the comparison difference of information and rear amount of fuel information " by the preceding amount of fuel information and the rear amount of fuel information of the same fuel tank
Contrast differences value obtains.
As shown in Figure 3 and Figure 4, below by according to the different situations of fired state and speed, to provided by the above embodiment
Vehicle fuel amount abnormal alarm method is illustrated:
The first situation: when key is at OFF grades, i.e. the current fired state judgement of vehicle is in off state, every
Whether 3min voluntarily extremely, if detect fuel oil abnormal signal, only examining by timing wake-up instrument 2, detection vehicle fuel amount
The a cycle measured issues that 3 high level of alarm is primary, i.e., the alarm 3 installed on vehicle works primary (in view of an evening
Upper every 3min work is primary, and the power consumption of battery is too big, it is possible to lead to that vehicle can not be started within second day, alarm 3 detects
It works after to fuel oil exception primary)；But after detecting fuel oil exception, still every 3min, instrument 2 is sent out after waking up by message
To the signal of VDR6 fuel oil exception, until fuel oil abnormal alarm is eliminated, VDR6 stops alert to cell phone application or entering
Information.
Second case: when key is at OFF grades, i.e. the current fired state judgement of vehicle is in off state, every
3min voluntarily timing wake-up instrument 2, whether detection vehicle fuel amount is abnormal, if exception is not detected, instrument 2 is defeated to alarm 3
Low level/hanging out, instrument 2 will immediately enter suspend mode.
The third situation, when key is at ON grades, i.e. the current fired state judgement of vehicle is in an open state, then is persistently examined
Fuel oil abnormal signal is surveyed, if there is fuel oil abnormal signal, alarm 3 has always the alarm voice of fuel oil exception to broadcast；Meanwhile
Fuel oil exception message also persistently issues VDR6, after removing fuel oil abnormal alarm signal, then stops being sent to 3 He of alarm
VDR6 signal.
4th kind of situation is a kind of special case on the third case basis, as shown in figure 4, if digital quantity is defeated
Entering " fuel cock status signal " becomes other states (low or hanging) from height, and instrument 2 detects that fuel oil box switches,
At this time in the case of 0≤speed < 5km/h, by present amount information update and it is stored as the preceding amount of fuel information, not
Issue alarm signal.
5th kind of situation, when key is at ON grades, and in the case of speed >=5km/h, without detecting fuel leakage function.
Finally it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.This
The those of ordinary skill in field is it is understood that be possible to modify the technical solutions described in the foregoing embodiments or right
Part of technical characteristic is equivalently replaced；These are modified or replaceed, and it does not separate the essence of the corresponding technical solution originally
Invent the spirit and scope of each embodiment technical solution.
Claims (10)
1. a kind of vehicle fuel amount abnormal alarm method characterized by comprising
Step 1, judge whether vehicle fuel amount is abnormal: the vehicle fuel amount includes preceding amount of fuel information and rear amount of fuel letter
The comparison difference of breath, the preceding amount of fuel information and rear amount of fuel information is greater than the first alarming value and is determined as amount of fuel exception；
Step 2, the current fired state of detection vehicle；
Step 3, in the case of step 2 is judged to lighting a fire opening state, whether detection fuel oil box switches；
Step 4, amount of fuel abnormal alarm specifically includes:
Step 41, in the case of step 2 judgement is in off state, vehicle fuel amount is periodically detected, and enter step 1,
Also, amount of fuel information is currently detected amount of fuel percent value after described, and the preceding amount of fuel information is fired state
It is in close state the amount of fuel percent value being recorded and stored；In the case of step 1 is determined as amount of fuel exception, issue
Amount of fuel abnormal alarm information, and carry out fuel oil alarm voice broadcast and send amount of fuel exception message by vehicle bus
To client terminal；
Step 42, it is determined as that amount of fuel is abnormal, step 2 is judged to lighting a fire, and fuel oil is not detected in opening state, step 3 in step 1
In the case of fuel tank switches, amount of fuel abnormal alarm information is issued, and carries out fuel oil alarm voice broadcast and by fuel oil
It measures exception message and client terminal is sent to by vehicle bus.
2. vehicle fuel amount abnormal alarm method as described in claim 1, which is characterized in that step 41 " is periodically examined
The period of measuring car amount of fuel " includes: from wake-up phase (T1) and dormant period (T2), wherein described to be less than institute from wake-up phase (T1)
It states dormant period (T2), described from waking up, phase (T1) is interior to enter step 1.
3. vehicle fuel amount abnormal alarm method as claimed in claim 2, which is characterized in that described from wake-up phase (T1) setting
For 3s, the dormant period (T2) is set as 180s.
4. vehicle fuel amount abnormal alarm method as claimed any one in claims 1 to 3, which is characterized in that further include:
Step 5, in the case of step 2 is judged to lighting a fire opening state, current vehicle speed is detected；
Step 6, it is determined as that amount of fuel is abnormal, step 2 is judged to lighting a fire, and opening state, step 3 are determined as fuel oil box in step 1
Switching has occurred, in the case of current vehicle speed that step 5 detects is less than the first preset vehicle speed value, more by present amount information
Newly and it is stored as the preceding amount of fuel information；Wherein, " the comparison of the preceding amount of fuel information and rear amount of fuel information in step 1
Difference " is obtained by the contrast differences value of the preceding amount of fuel information and rear amount of fuel information of the same fuel tank.
5. vehicle fuel amount abnormal alarm method as claimed in claim 4, which is characterized in that in step 3, by detecting fuel oil
Whether switch state signal, detection fuel oil box switch；There are two kinds of different conditions in the fuel cock status signal
In the case of switching over, then determine that fuel oil box is switched.
6. a kind of vehicle fuel amount anomaly alarming device characterized by comprising
Fuel sensor (1), is used to detect vehicle fuel amount；
Instrument (2), includes
Whether vehicle fuel amount abnormal deciding means (21), it is abnormal to be used to detect vehicle fuel amount, preceding amount of fuel information with
Amount of fuel information comparison difference is greater than in the case of the first alarming value afterwards, is determined as amount of fuel exception；
Fired state detection unit (22) is used to detect the current fired state of vehicle；
Fuel oil box switching judging unit (24) is judged to lighting a fire opening state in the fired state detection unit (22)
Under situation, whether detection fuel oil box switches；
Output unit (23) is used in the case of the fired state detection unit (22) is judged to lighting a fire closed state,
Whether extremely the vehicle fuel amount abnormal deciding means (21) periodically detects vehicle fuel amount, the rear amount of fuel information
For currently detected amount of fuel percent value, the preceding amount of fuel information is in close state for keyed ignition state and is recorded
With the amount of fuel percent value of preservation, it is determined as the situation of amount of fuel exception in the vehicle fuel amount abnormal deciding means (21)
Under, issue amount of fuel abnormal alarm information, and by alarm (3) carry out fuel oil alarm voice broadcast and by amount of fuel exception
Message is sent to client terminal by vehicle bus；And for determining in the vehicle fuel amount abnormal deciding means (21)
For amount of fuel is abnormal, the fired state detection unit (22) is judged to lighting a fire opening state, the fuel oil box switching judging
Unit (24) is not detected in the case of fuel oil box switches, and issues amount of fuel abnormal alarm information, and pass through alarm
(3) it carries out fuel oil alarm voice broadcast and amount of fuel exception message is sent to client terminal by vehicle bus.
7. vehicle fuel amount anomaly alarming device as claimed in claim 6, which is characterized in that the vehicle fuel amount is sentenced extremely
The period of " the periodically detecting vehicle fuel amount " of disconnected unit (21) includes: from wake-up phase (T1) and dormant period (T2), wherein
Described to be less than the dormant period (T2) from wake-up phase (T1), the vehicle fuel amount that detects from wake-up phase (T1) simultaneously determines vehicle
Whether amount of fuel is abnormal.
8. vehicle fuel amount anomaly alarming device as claimed in claim 7, which is characterized in that described from wake-up phase (T1) setting
For 3s, the dormant period (T2) is set as 180s.
9. the vehicle fuel amount anomaly alarming device as described in any one of claim 6 to 8, which is characterized in that further include:
Vehicle speed sensor (5) is used in the case of the fired state detection unit (22) is judged to lighting a fire opening state,
Detect current vehicle speed；
Instrument (2) also includes
Preceding amount of fuel information update storage unit (25) is used to be determined as in the vehicle fuel amount abnormal deciding means (21)
Amount of fuel is abnormal, the fired state detection unit (22) is judged to lighting a fire opening state, the fuel oil box switching judging list
First (24) determine that the current vehicle speed that switching has occurred in fuel oil box and the vehicle speed sensor (5) detects is default less than first
In the case of vehicle speed value, by present amount information update and it is stored as the preceding amount of fuel information；Wherein, the vehicle fuel
" the comparison difference of the preceding amount of fuel information and rear amount of fuel information " is by the same fuel tank in amount abnormal deciding means (21)
The contrast differences value of the preceding amount of fuel information and rear amount of fuel information obtains.
10. vehicle fuel amount anomaly alarming device as claimed in claim 9, which is characterized in that the fuel oil box switching is sentenced
Whether disconnected unit (24) are switched by detection fuel cock status signal, detection fuel oil box；In the fuel cock shape
In the case of state signal two kinds of different conditions of appearance switch over, then determine that fuel oil box is switched.
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| CN201910092389.XA CN109774459B (en) | 2019-01-30 | 2019-01-30 | Method and device for alarming abnormality of automobile fuel quantity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982223A (en) * | 2020-07-03 | 2020-11-24 | 智博汽车科技(上海)有限公司 | Oil quantity detection device and method and vehicle |
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