CN207439668U - Clutch safety valve fault diagnosis system - Google Patents
Clutch safety valve fault diagnosis system Download PDFInfo
- Publication number
- CN207439668U CN207439668U CN201721543281.0U CN201721543281U CN207439668U CN 207439668 U CN207439668 U CN 207439668U CN 201721543281 U CN201721543281 U CN 201721543281U CN 207439668 U CN207439668 U CN 207439668U
- Authority
- CN
- China
- Prior art keywords
- safety valve
- detection unit
- field
- effect tube
- clutch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model is related to technical field of automotive electronics, and in particular to and a kind of clutch safety valve fault diagnosis system, the clutch safety valve are mounted between pressure source and clutch, the system comprises：Control detection unit, field-effect tube, first resistor；The first resistor is connected between the source electrode of the field-effect tube and the clutch safety valve；The control detection unit is connected respectively with the grid of the field-effect tube, the source electrode of the field-effect tube, the clutch safety valve；The drain electrode of the field-effect tube is connected with power supply；The control detection unit controls the field-effect tube on or off, the control detection unit is respectively in the field-effect tube on or off, the voltage value at the first resistor both ends is gathered, and the failure of the clutch safety valve is determined according to the voltage value at the first resistor both ends.By the utility model, the security of clutch ensure that.
Description
Technical field
The utility model is related to technical field of automotive electronics, and in particular to a kind of clutch safety valve fault diagnosis system.
Background technology
Clutch safety valve is between pressure source and clutch, for increasing the oil-filled security used of clutch.Such as
Fruit clutch safety valve breaks down at work, for example is constantly in oil-filled state and cannot disengage, so as to influence clutch
Normal work.
Utility model content
For the situation for not carrying out fault diagnosis to clutch safety valve in the prior art, the utility model provides one kind
Clutch safety valve fault diagnosis system, to ensure the security of clutch.
To achieve the above object, the utility model provides following technical solution：
A kind of clutch safety valve fault diagnosis system, the clutch safety valve be mounted on pressure source and clutch it
Between, including：Control detection unit, field-effect tube, first resistor；The first resistor be connected to the source electrode of the field-effect tube with
Between the clutch safety valve；The control detection unit respectively with the grid of the field-effect tube, the field-effect tube
Source electrode, clutch safety valve connection；The drain electrode of the field-effect tube is connected with power supply；The control detection unit control institute
Field-effect tube on or off is stated, it is described to control detection unit respectively in the field-effect tube on or off, described in acquisition
The voltage value at first resistor both ends, and the former of the clutch safety valve is determined according to the voltage value at the first resistor both ends
Barrier.
Preferably, the control detection unit includes：Processor and detection unit；The processor respectively with the detection
The grid connection of unit, the field-effect tube；The detection unit respectively with the clutch safety valve, the field-effect tube
Source electrode connects；The detection unit in the field-effect tube on or off, gathers the electricity at the first resistor both ends respectively
The voltage value at the first resistor both ends is simultaneously sent to the processor by pressure value, so that the processor is according to the described first electricity
The voltage value at resistance R1 both ends determines the failure of the clutch safety valve.
Preferably, the detection unit is：Analog-digital converter.
Preferably, the model ADC0800 of the analog-digital converter.
Preferably, it is described to control the detection unit to be：Microcontroller with analog-digital converter.
Preferably, the model of the microcontroller：PIC16C711.
Preferably, further include：Second resistance and the DC constant current power supply being connected with the control detection unit；Described second
Resistance is connected between the DC constant current power supply and the clutch safety valve；It is described control detection unit respectively with the direct current
Constant-current source control terminal, DC constant current power supply output terminal connection；The control detection unit is in the field-effect tube failure or cuts
When only, the DC constant current power supply is controlled to provide constant current for the clutch safety valve, gather the DC constant current power supply output
The voltage value at end, and determined according to the voltage value at the first resistor both ends and the voltage value of the DC constant current power supply output terminal
The failure of the clutch safety valve.
Preferably, value of the voltage of the power supply between 11V~15V.
The beneficial effects of the utility model are：
Clutch safety valve fault diagnosis system provided by the utility model, the work of control detection unit control field-effect
Make, and clutch safety valve is determined according to first resistor both end voltage when the field-effect tube works or do not work respectively
Failure.By the utility model, the security of clutch ensure that.
Description of the drawings
Fig. 1 is a kind of structure diagram of the utility model embodiment clutch safety valve fault diagnosis system.
Fig. 2 is another structure diagram of the utility model embodiment clutch safety valve fault diagnosis system.
Reference numeral：
B+, power supply R1, first resistor R2, second resistance Q1, field-effect tube L, clutch safety valve I, direct current constant current
Source
Specific embodiment
In order to which those skilled in the art is enable to be further understood that the feature and technology contents of the utility model, with reference to
Drawings and embodiments elaborate to the utility model embodiment.
As shown in Figure 1, in the utility model embodiment, the clutch safety valve L be mounted on pressure source and clutch it
Between, the system comprises：Control detection unit, field-effect tube Q1, first resistor R1；The first resistor R1 is connected to the field
Between the source electrode of effect pipe Q1 and the clutch safety valve L；The control detection unit is respectively with the field-effect tube Q1's
Grid, the source electrode of the field-effect tube Q1, the clutch safety valve L connections；The drain electrode of the field-effect tube Q1 and power supply B+
Connection；The control detection unit controls the field-effect tube Q1 on or off, and the control detection unit is respectively described
During field-effect tube Q1 on or off, the voltage value at the first resistor R1 both ends is gathered, and institute is determined according to the voltage value
State the failure of clutch safety valve.
Specifically, the control detection unit controls the field-effect tube Q1 on or off：Mainly by described
The grid output high level of field-effect tube Q1 is so that the field-effect tube Q1 is turned on, so that power supply B+ is first resistor R1, institute
State clutch safety valve L loop power supplies；Or low level is exported so that the field-effect tube Q1 to the grid of the field-effect tube Q1
Cut-off.
Specifically, the control detection unit determines that the failure of the clutch safety valve includes according to the voltage value：
When the field-effect tube Q1 ends, if the control detection unit detects first resistor R1 both ends either end
Voltage value be more than first setting voltage value, it is determined that the clutch safety valve L is to electric short circuit failure.It should be noted that
First setting voltage is demarcated according to the model of the clutch safety valve to be determined, for example, first sets voltage as 18V.
When the field-effect tube Q1 is turned on, the control detection unit collects the voltage difference at first resistor R1 both ends
For first voltage V1 and second voltage V2, and first voltage V1 with second voltage V2 is made the difference and is taken absolute value, is i.e. │ V1-V2 │ work as │
When V1-V2 │ are more than the second setting value, the control detection unit determines the clutch safety valve over current fault；As │ V1-V2 │
During more than three setting values, the control detection unit determines that the 3rd setting value of the clutch safety valve shorted to earth failure is small
In the second setting value；When the difference is less than four setting values, the control detection unit determines the clutch safety valve
Open fault, the 4th setting value are less than the 3rd setting value.It should be noted that the second setting value, the 3rd setting value and the 4th
Setting value can be demarcated according to the clutch safety valve and determined, for example, the second setting value is 3.5V, the 3rd setting value is 2V,
4th setting value is 1V.
Specifically, value of the voltage of the power supply B+ between 11V~15V.
Specifically, in one embodiment of the utility model, the control detection unit can be：With analog-digital converter
Microcontroller.
Specifically, the model of the microcontroller can be：PIC16C711.
Specifically, in one embodiment of the utility model, the control detection unit includes：Processor is single with detection
Member；Grid of the processor respectively with the detection unit, the field-effect tube Q1 is connected；The detection unit respectively with institute
State the source electrode connection of clutch safety valve L, the field-effect tube Q1；The detection unit turns on respectively in the field-effect tube Q1
Or it during cut-off, gathers the voltage value at the first resistor R1 both ends and the voltage value at the first resistor R1 both ends is sent to institute
Processor is stated, so that the processor determines the clutch safety valve L's according to the voltage value at the first resistor R1 both ends
Failure.
Specifically, the detection unit can be：Analog-digital converter.
Specifically, the model ADC0800 of the analog-digital converter.
Further, when power supply breaks down, in the utility model embodiment, the system can also include：Second resistance
The R2 and DC constant current power supply I being connected with the control detection unit；The second resistance R2 is connected to the DC constant current power supply I
Between the clutch safety valve L；It is described control detection unit respectively with the DC constant current power supply I control terminals, the direct current
Constant-current source I output terminals connect；The control detection unit is permanent by the direct current in the field-effect tube Q1 failures or cut-off
Stream source I control terminals control the DC constant current power supply I work, so that the DC constant current power supply I provides for the clutch safety valve L
Constant current, gathers the voltage value of the DC constant current power supply I output terminals, and according to the voltage value at the first resistor both ends and
The voltage value of the DC constant current power supply I output terminals determines the failure of the clutch safety valve.
Specifically, when the control detection unit includes：When processor is with detection unit, as shown in Fig. 2, DC constant current power supply
I control terminals are electrically connected with the processor；Described second resistance R2 one end respectively with DC constant current power supply I output terminals, described
Detection unit connects, and the second resistance R2 other ends are connected respectively with described first resistor one end, the clutch safety valve；
One end of the first resistor R1 is also connected with the detection unit, the clutch safety valve respectively, the first resistor R1
Source electrode of the other end respectively with the detection unit, the field-effect tube Q1 be connected；The processor and the field-effect tube
The grid connection of Q1.
Specifically, when processor is when the field-effect tube Q1 ends or determine power supply B+ failures, the direct current is controlled
Constant-current source I sends constant current, and detects the voltage value of the DC constant current power supply I output terminals, if the DC constant current power supply I is defeated
The voltage value of outlet is more than the 5th setting value, it is determined that clutch safety valve failure.5th setting value is according to the clutch
The model calibration of device safety valve determines, for example, the 5th setting value is 2.5V.
Clutch safety valve fault diagnosis system provided by the utility model in summary, can be to clutch safety valve
Failure effectively diagnoses, and prevents from, because of clutch safety valve failure, causing the control of mistake.
The utility model embodiment is described in detail above, specific embodiment used herein is to this practicality
New to be set forth, the explanation of above example is only intended to help to understand the utility model；Meanwhile for the one of this field
As technical staff, according to the thought of the utility model, there will be changes in specific embodiments and applications, to sum up
Described, the utility model content should not be construed as the limitation to the utility model.
Claims (8)
1. a kind of clutch safety valve fault diagnosis system, the clutch safety valve is mounted between pressure source and clutch,
It is characterised in that it includes：Control detection unit, field-effect tube, first resistor；The first resistor is connected to the field-effect tube
Source electrode and the clutch safety valve between；It is described control detection unit respectively with the grid of the field-effect tube, the field
The source electrode of effect pipe, clutch safety valve connection；The drain electrode of the field-effect tube is connected with power supply；The control detection is single
Member controls the field-effect tube on or off, described to control detection unit respectively in the field-effect tube on or off,
The voltage value at the first resistor both ends is gathered, and the clutch safety is determined according to the voltage value at the first resistor both ends
The failure of valve.
2. clutch safety valve fault diagnosis system according to claim 1, which is characterized in that the control detection unit
Including：Processor and detection unit；Grid of the processor respectively with the detection unit, the field-effect tube is connected；Institute
Source electrode of the detection unit respectively with the clutch safety valve, the field-effect tube is stated to be connected；The detection unit is respectively in institute
When stating field-effect tube on or off, the voltage value at the first resistor both ends is gathered and by the voltage at the first resistor both ends
Value is sent to the processor, so that the processor determines the clutch according to the voltage value at the first resistor R1 both ends
The failure of safety valve.
3. clutch safety valve fault diagnosis system according to claim 2, which is characterized in that the detection unit is：
Analog-digital converter.
4. clutch safety valve fault diagnosis system according to claim 3, which is characterized in that the analog-digital converter
Model ADC0800.
5. clutch safety valve fault diagnosis system according to claim 2, which is characterized in that the control detection unit
For：Microcontroller with analog-digital converter.
6. clutch safety valve fault diagnosis system according to claim 5, which is characterized in that the type of the microcontroller
Number it is：PIC16C711.
7. according to claim 1-6 any one of them clutch safety valve fault diagnosis systems, which is characterized in that further include：
Second resistance and the DC constant current power supply being connected with the control detection unit；The second resistance is connected to the direct current constant current
Between source and the clutch safety valve；It is described control detection unit respectively with the DC constant current power supply control terminal, the direct current
Constant current source output terminal connects；The control detection unit controls the direct current constant current in the field-effect tube failure or cut-off
Source provides constant current for the clutch safety valve, gathers the voltage value of the DC constant current power supply output terminal, and according to described
The voltage value of the voltage value at first resistor both ends and the DC constant current power supply output terminal determines the event of the clutch safety valve
Barrier.
8. clutch safety valve fault diagnosis system according to claim 7, which is characterized in that the voltage of the power supply is
Value between 11V~15V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721543281.0U CN207439668U (en) | 2017-11-17 | 2017-11-17 | Clutch safety valve fault diagnosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721543281.0U CN207439668U (en) | 2017-11-17 | 2017-11-17 | Clutch safety valve fault diagnosis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207439668U true CN207439668U (en) | 2018-06-01 |
Family
ID=62286448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721543281.0U Expired - Fee Related CN207439668U (en) | 2017-11-17 | 2017-11-17 | Clutch safety valve fault diagnosis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207439668U (en) |
-
2017
- 2017-11-17 CN CN201721543281.0U patent/CN207439668U/en not_active Expired - Fee Related
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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: 20180601 Termination date: 20201117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |