CN208721734U - A kind of knockdown misfire detection systems - Google Patents
A kind of knockdown misfire detection systems Download PDFInfo
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- CN208721734U CN208721734U CN201821200774.9U CN201821200774U CN208721734U CN 208721734 U CN208721734 U CN 208721734U CN 201821200774 U CN201821200774 U CN 201821200774U CN 208721734 U CN208721734 U CN 208721734U
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Abstract
The utility model discloses two kinds or three kinds that knockdown misfire detection systems of one kind include in following device: the point extinguishing detecting device based on voltage, for judging the point flameout state of engine by acquiring battery voltage；Point extinguishing detecting device based on engine luggine, for judging the point flameout state of engine by the vibration information of acquisition engine；Point extinguishing detecting device based on voltage slope, the number for being interrupted by acquisition external power supply slope signal judge the point flameout state of engine.The point misfire detection systems of the utility model include at least two o'clock extinguishing detecting device, for judging the point flameout state of engine, judgement by extinguishing detecting device to engine point flameout state, and to result carry out with or operation, final engine point flameout state is obtained, sensitivity and accuracy to the judgement of engine point flameout state are improved.
Description
Technical field
The utility model relates to smart machine fields, are related specifically to a kind of knockdown misfire detection systems.
Background technique
Along with Internet of Things, the fast development of car networking technology, vehicle electronics terminal more and more needs batch detection
Automobile point flameout state.
Currently, the flame-out method of electronic product test point generallys use reading car engine state on the market, as point
Flame-out judgment basis.This method is unfavorable for batch device installation and maintenance in actual installation practice.Meanwhile it also increasing
Hardware cost and installation cost.Due to the diversity of vehicle, it is difficult to go accurately to judge vehicle by putting a kind of flame-out characteristic
The flame-out information of point, it is easy to generate erroneous judgement.
Utility model content
The purpose of this utility model is to solve the problems, such as to detect automobile point flameout state difficulty in the prior art.
To solve the above-mentioned problems, the utility model provides a kind of knockdown misfire detection systems, including following dress
Two kinds in setting or three kinds:
Point extinguishing detecting device based on voltage, for judging the flame-out shape of point of engine by acquiring battery voltage
State；
Point extinguishing detecting device based on engine luggine, for judging engine by the vibration information of acquisition engine
Point flameout state；
Point extinguishing detecting device based on voltage slope, the number for being interrupted by acquisition external power supply slope signal are sentenced
The point flameout state of disconnected engine.
Further, the point extinguishing detecting device based on voltage includes:
MCU；
Battery voltage detection device, for detecting the voltage of battery, and the voltage data that will test is sent to
MCU；
Memory module, for storing threshold voltage parameter.
Further,
For the voltage data that MCU will test compared with the voltage parameter in memory module, the point to determine engine is flame-out
State.
Further,
MCU updates threshold voltage parameter according to the igniting steady state voltage of several groups and flame-out steady state voltage dynamic.
Further, the point extinguishing detecting device based on engine luggine includes:
MCU；
Dynamic and static sensor, acquires the vibration information of engine, and is sent to MCU.
Further, the vibration information of collected engine disappear trembling by MCU, according to the judgement of the vibration information after trembling that disappears
The point flameout state of engine.
Further, the point extinguishing detecting device based on voltage slope includes:
MCU；
Voltage slope acquisition module for acquiring the number of external power supply slope signal interruption, and is sent to MCU.
Further,
MCU counts the number that external power supply slope signal interrupts, and then judges the point flameout state of engine.
Further,
Before the number that MCU statistics external power supply slope signal interrupts, it is also necessary to disappear trembling.
The utility model is a little:
The point misfire detection systems of the utility model include at least two o'clock extinguishing detecting device, for judging the point of engine
Flameout state, the judgement by extinguishing detecting device to engine point flameout state, and to result carry out with or operation, obtain
Final engine point flameout state improves sensitivity and accuracy to the judgement of engine point flameout state.
Detailed description of the invention
Fig. 1 is the architecture diagram of knockdown misfire detection systems in the utility model first embodiment；
Fig. 2 is the architecture diagram of the point extinguishing detecting device in the utility model first embodiment based on voltage；
Fig. 3 is the architecture diagram of the point extinguishing detecting device in the utility model first embodiment based on engine luggine；
Fig. 4 is the architecture diagram of the point extinguishing detecting device in the utility model first embodiment based on voltage slope.
Specific embodiment
It is understandable to enable the above objects, features, and advantages of the utility model to become apparent, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.
First embodiment
With reference to Fig. 1, the present embodiment provides a kind of knockdown misfire detection systems, including two kinds in following device or
Three kinds of person: extinguishing detecting device, the point extinguishing detecting device based on engine luggine are put and based on voltage slope based on voltage
Point extinguishing detecting device.
With reference to Fig. 2, the point extinguishing detecting device based on voltage is used to judge engine by acquiring battery voltage
Point flameout state.
It includes MCU, battery voltage detection device and memory module.
Battery voltage detection device is used to detect the voltage of battery, and the voltage data that will test is sent to MCU；
Memory module is for storing threshold voltage parameter.In the present embodiment, the MCU can also be according to the igniting of several groups
Steady state voltage and flame-out steady state voltage dynamic update threshold voltage parameter.
For the voltage data that MCU will test compared with the voltage parameter in memory module, the point to determine engine is flame-out
State.
With reference to Fig. 3, the point extinguishing detecting device based on engine luggine is sentenced for the vibration information by acquiring engine
The point flameout state of disconnected engine.
It includes MCU and dynamic and static sensor, and dynamic and static sensor is used to acquire the vibration information of engine, and is sent to MCU.
The vibration information of collected engine disappear trembling by MCU, and according to disappearing, the vibration information after trembling judges engine
Point flameout state.
With reference to Fig. 4, the point extinguishing detecting device based on voltage slope, for being interrupted by acquisition external power supply slope signal
Number judge the point flameout state of engine.
It includes MCU and voltage slope acquisition module, and voltage slope acquisition module is for acquiring external power supply slope signal
The number of interruption, and it is sent to MCU.Disappear after trembling, MCU counts the number that external power supply slope signal interrupts, and then judges to start
The point flameout state of machine.
The point misfire detection systems of the present embodiment include at least two o'clock extinguishing detecting device, for judging that the point of engine is put out
Fiery state, the judgement by extinguishing detecting device to engine point flameout state, and to result carry out with or operation, obtain most
Whole engine point flameout state improves sensitivity and accuracy to the judgement of engine point flameout state.
Second embodiment
The present embodiment provides a kind of knockdown misfire detection methods, comprising:
The point flameout state of engine is judged using point misfire detection systems described in first embodiment；
The engine obtained according to difference extinguishing detecting device puts flameout state to judge that final engine point is put out
Fiery state.
If inevitably there are some the case where reporting by mistake and failing to report appearance only with a kind of extinguishing detecting device.
Using the method for the present embodiment, wrong report igniting is easy for the vehicle having, it is flame-out that the point based on voltage can be configured
Detection device and point extinguishing detecting device based on engine luggine combine judgement igniting, then only when stream oriented device is all examined
When measuring igniting, equipment is just considered to improve the accuracy of the flame-out judgement of transmitter point in fired state.
Some vehicles are more difficult to detect igniting, then can configure the point extinguishing detecting device based on voltage and be based on hair
The point extinguishing detecting device detection of motivation vibration, select their logical relation for or relationship, any mode detection arrives
Igniting, equipment are regarded as that the sensitivity of engine point flameout state judgement can be improved in this way in fired state.
It is more the situation for needing to avoid wrong report flame-out in reality, flame-out Rule of judgment can be enhanced accordingly, than
It such as configures three kinds of devices while detecting.After three, which detects, to stop working, just think that equipment is in flameout state, thus effectively
The situation for avoiding wrong report flame-out.
Although the utility model discloses as above, the utility model is not limited to this.Anyone skilled in the art,
It does not depart from the spirit and scope of the utility model, can make various changes or modifications, therefore the protection scope of the utility model
It should be defined by the scope defined by the claims..
Claims (9)
1. a kind of knockdown misfire detection systems, which is characterized in that including two kinds or three kinds in following device:
Point extinguishing detecting device based on voltage, for judging the point flameout state of engine by acquiring battery voltage；
Point extinguishing detecting device based on engine luggine, for judging the point of engine by the vibration information of acquisition engine
Flameout state；
Point extinguishing detecting device based on voltage slope, the number for being interrupted by acquisition external power supply slope signal judge hair
The point flameout state of motivation.
2. according to claim 1 misfire detection systems, which is characterized in that the point misfire detection dress based on voltage
It sets and includes:
MCU；
Battery voltage detection device, for detecting the voltage of battery, and the voltage data that will test is sent to MCU；
Memory module, for storing threshold voltage parameter.
3. according to claim 2 misfire detection systems, which is characterized in that
The voltage data that MCU will test is compared with the voltage parameter in memory module, to determine the point flameout state of engine.
4. according to claim 2 misfire detection systems, which is characterized in that
MCU updates threshold voltage parameter according to the igniting steady state voltage of several groups and flame-out steady state voltage dynamic.
5. according to claim 1 misfire detection systems, which is characterized in that the point based on engine luggine is flame-out
Detection device includes:
MCU；
Dynamic and static sensor, acquires the vibration information of engine, and is sent to MCU.
6. according to claim 5 misfire detection systems, which is characterized in that MCU is by the vibration of collected engine
Information disappear trembling, and the point flameout state of engine is judged according to the vibration information after trembling that disappears.
7. according to claim 1 misfire detection systems, which is characterized in that the flame-out inspection of the point based on voltage slope
Surveying device includes:
MCU；
Voltage slope acquisition module for acquiring the number of external power supply slope signal interruption, and is sent to MCU.
8. according to claim 1 misfire detection systems, which is characterized in that
MCU counts the number that external power supply slope signal interrupts, and then judges the point flameout state of engine.
9. according to claim 8 misfire detection systems, which is characterized in that
Before the number that MCU statistics external power supply slope signal interrupts, it is also necessary to disappear trembling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200774.9U CN208721734U (en) | 2018-07-25 | 2018-07-25 | A kind of knockdown misfire detection systems |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821200774.9U CN208721734U (en) | 2018-07-25 | 2018-07-25 | A kind of knockdown misfire detection systems |
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| CN208721734U true CN208721734U (en) | 2019-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828303A (en) * | 2018-07-25 | 2018-11-16 | 合肥移顺信息技术有限公司 | Knockdown misfire detection systems of one kind and method |
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2018
- 2018-07-25 CN CN201821200774.9U patent/CN208721734U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828303A (en) * | 2018-07-25 | 2018-11-16 | 合肥移顺信息技术有限公司 | Knockdown misfire detection systems of one kind and method |
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