CN203479457U - An engine knock detecting apparatus - Google Patents
An engine knock detecting apparatus Download PDFInfo
- Publication number
- CN203479457U CN203479457U CN201320475811.8U CN201320475811U CN203479457U CN 203479457 U CN203479457 U CN 203479457U CN 201320475811 U CN201320475811 U CN 201320475811U CN 203479457 U CN203479457 U CN 203479457U
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- China
- Prior art keywords
- engine
- knock
- control unit
- electronic control
- detecting apparatus
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- Expired - Fee Related
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- Combined Controls Of Internal Combustion Engines (AREA)
- Testing Of Engines (AREA)
Abstract
The utility model relates to an engine knock detecting apparatus comprising a knock sensor and a sound box. The knock sensor is connected with the sound box and an engine electronic control unit through an adapter. The engine knock detecting apparatus has characteristics of simple structure, reasonable design, low manufacturing difficulty and cost, decreased influences of noise surrounding an engine on the knock detecting accuracy, high test reliability, unaffected engine knock information reception of the electronic control unit, easy manipulation, and flexible application.
Description
Technical field
The utility model relates to a kind of vibration detection device, particularly relates to a kind of combustion knock pick-up unit.
Background technology
At present, the develop rapidly of automobile electronic information technology, increasing sensor is applied in automobile engine control system, and detonation sensor is also widely applied simultaneously, yet has also brought the problem of engine knock detection in demarcation and troubleshooting process thereupon.In engine calibration and troubleshooting process, monitoring pinking is not obvious and with noise with the sense of hearing directly perceived, and special-purpose knock detection equipment cost is high, measures dirigibility poor, and field monitoring is more difficult with troubleshooting realization.
Summary of the invention
The purpose of this utility model is to overcome the weak point existing in above-mentioned technology, provides a kind of simple in structure, reasonable in design, and combustion knock pick-up unit easy and simple to handle, with low cost.
In order to achieve the above object, the technical solution adopted in the utility model is: comprise detonation sensor, audio amplifier, described detonation sensor is connected with audio amplifier, engine electronic control unit respectively by adapter.
The utility model has the advantages that:
1, reasonable in design, simple, manufacture difficulty and cost are low;
2, reduce the impact of engine ambient noise on knock detection accuracy, test reliability is high;
3, do not affect electronic control unit and receive combustion knock information, simple to operation, applying flexible.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1, the utility model comprises detonation sensor 1, audio amplifier 9, and described detonation sensor 1 is connected with audio amplifier 9, engine electronic control unit 3 respectively by adapter 11.
A kind of combustion knock monitoring device of the present utility model, comprises detonation sensor 1, audio amplifier 9, and described detonation sensor 1 is connected with audio amplifier 9, engine electronic control unit 3 respectively by adapter 11.Adapter 11 is provided with the first switching pin 8, the second switching pin 10, the 3rd switching pin 4, the first switching pin 8 connects the first output pin of detonation sensor 1 by contact 7, and connect the first input pin of audio amplifier 9 and a signal input pin of electronic control unit 3, the second switching pin 10 connects the second output pin of detonation sensor 1 by contact 7, and connect the second input pin of audio amplifier 9 and another signal input pin of electronic control unit 3, the 3rd switching pin 4 connects the shielding line of detonation sensor 1 by contact 7, and connect the shielding line pin of audio amplifier 9 and the shielding line pin of electronic control unit 3.
In engine operation process, when having pinking to produce, the vibration of engine cylinder block is delivered on piezoelectric ceramic body 6 by the seismic mass 5 being sleeved in detonation sensor 1 outside derby 2, piezoelectric ceramic body 6 is owing to being subject to the pressure of seismic mass 5 generation of vibrations, on two pole-faces, produce voltage, vibration signal is transformed into voltage signal output, and the voltage signal of output is delivered to audio amplifier 9, and detonation signal just presents clearly by audio amplifier 9.
The utility model, by simple and clear design, has been realized the detection to combustion knock, has saved the input of substantial contribution, simple to operation in addition, applying flexible, and test reliability is high, but also can be applicable to the investigation to detonation sensor fault.
Claims (1)
1. a combustion knock pick-up unit, comprise detonation sensor (1), audio amplifier (9), it is characterized in that: described detonation sensor (1) is connected with audio amplifier (9), engine electronic control unit (3) respectively by adapter (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475811.8U CN203479457U (en) | 2013-07-31 | 2013-07-31 | An engine knock detecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475811.8U CN203479457U (en) | 2013-07-31 | 2013-07-31 | An engine knock detecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479457U true CN203479457U (en) | 2014-03-12 |
Family
ID=50227769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320475811.8U Expired - Fee Related CN203479457U (en) | 2013-07-31 | 2013-07-31 | An engine knock detecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110732A (en) * | 2015-01-09 | 2017-08-29 | 罗伯特·博世有限公司 | For the vibration reception device for the vibration for receiving the component for causing vibration |
| CN113339135A (en) * | 2021-06-21 | 2021-09-03 | 哈尔滨东安汽车动力股份有限公司 | Engine detonation monitor and operation method thereof |
-
2013
- 2013-07-31 CN CN201320475811.8U patent/CN203479457U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110732A (en) * | 2015-01-09 | 2017-08-29 | 罗伯特·博世有限公司 | For the vibration reception device for the vibration for receiving the component for causing vibration |
| CN107110732B (en) * | 2015-01-09 | 2020-11-10 | 罗伯特·博世有限公司 | Vibration receiving device for receiving vibrations of a vibration-causing component |
| CN113339135A (en) * | 2021-06-21 | 2021-09-03 | 哈尔滨东安汽车动力股份有限公司 | Engine detonation monitor and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20190731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |