CN111442044A - Clutch wear alarm system and judgment method - Google Patents
Clutch wear alarm system and judgment method Download PDFInfo
- Publication number
- CN111442044A CN111442044A CN202010307514.7A CN202010307514A CN111442044A CN 111442044 A CN111442044 A CN 111442044A CN 202010307514 A CN202010307514 A CN 202010307514A CN 111442044 A CN111442044 A CN 111442044A
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- China
- Prior art keywords
- clutch
- booster
- alarm
- sensor
- wear
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
- F16D66/025—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness sensing the position of parts of the brake system other than the braking members, e.g. limit switches mounted on master cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/008—Arrangements for monitoring working conditions, e.g. wear, temperature of clutches
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention relates to a clutch wear alarm system and a judgment method. The clutch wear alarm system comprises a sensor which is arranged on a clutch booster and used for measuring a displacement scale value of the booster, wherein the sensor is connected with a vehicle control unit, the vehicle control unit is connected with a clutch switch, and the clutch booster is connected with a clutch assembly through a separation shifting fork. A displacement sensor is added on the clutch booster to measure the displacement scale value of the booster; when the scale difference calculated by the VECU is larger than the limit value, the instrument can give an alarm to a driver and prompt the user to replace the clutch in time; the VECU records the service life of the clutch, and finally big data of the service life of the whole vehicle clutch are formed for product lifting and predictive maintenance.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to a clutch abrasion alarm system and a judgment method.
Background
At present, domestic commercial vehicles mainly adopt power configurations of an engine and a gearbox to provide power for the whole vehicle, and the engine and the gearbox need to be connected through a clutch.
During the use of the vehicle, the friction plates of the clutch are continuously worn. The wear thickness of the friction plate cannot be measured in real time on a manual transmission vehicle, so that a driver cannot accurately judge the replacement time of the clutch. Once the friction disc wearing and tearing exceed behind the limit thickness the driver not in time change, the required moment of torsion of whole car driving will can't be transmitted completely to the clutch, can appear the clutch and skid and cause unable normal driving, can lead to the clutch to burn the piece even the vehicle is broken down in the serious time, can't drive completely.
Disclosure of Invention
In order to solve the problems, the invention provides a clutch wear alarm system and a clutch wear judgment method, which are used for acquiring the wear thickness of a friction plate of a clutch and prompting a driver to replace the clutch in time through alarm when the friction plate is worn to the limit thickness.
The technical scheme adopted by the invention is as follows: a clutch wear alarm system and a judgment method are characterized in that: the device comprises a sensor which is arranged on a clutch booster and used for measuring a displacement scale value of the booster, wherein the sensor is connected with a vehicle control unit, the vehicle control unit is connected with a clutch switch, and the clutch booster is connected with a clutch assembly through a separation shifting fork.
Preferably, the sensor is a displacement sensor.
Preferably, the vehicle control system further comprises an alarm circuit, and the alarm circuit is connected with the vehicle control unit.
Further, the alarm circuit comprises a meter for displaying numerical values, an indicator light and a buzzer.
A method for judging clutch wear is characterized in that: a displacement sensor is added at the tail part of the clutch booster and is used for measuring the movement displacement of the piston of the booster; the method comprises the following steps:
a. after a clutch is assembled or replaced by a new vehicle, the displacement sensor records an initial scale value A when the clutch is combined;
b. in the using process of a vehicle, the displacement sensor can continuously record and update a scale value B when the clutch is combined, and meanwhile, the VECU can calculate and update a scale difference C in real time, wherein the scale difference C is the scale value B-scale value A;
c. when the scale difference C is larger than a set limit value, the instrument can give an audible alarm, a light alarm and a text prompt alarm to a driver, and meanwhile, the VECU can record the service life of the clutch.
Preferably, the clutch friction plate has an allowable limit wear thickness S, the lever ratio of the release fork is i, the limit scale difference L set by the VECU is S x i, and when the scale difference C is larger than or equal to the limit scale difference L, the instrument gives an alarm to a driver.
The beneficial effects obtained by the invention are as follows: a displacement sensor is added on the clutch booster to measure the displacement scale value of the booster; when the scale difference calculated by the VECU is larger than the limit value, the instrument can give an alarm to a driver and prompt the user to replace the clutch in time; the VECU records the service life of the clutch, and finally big data of the service life of the whole vehicle clutch are formed for product lifting and predictive maintenance.
Drawings
FIG. 1 is a schematic view of a heavy duty commercial vehicle manual transmission clutch system;
FIG. 2 is a schematic circuit diagram of a clutch wear warning system;
FIG. 3 is a functional block diagram of clutch life determination;
reference numerals: 1. a clutch pedal; 2. a clutch master cylinder; 3. a clutch booster; 4. a displacement sensor; 5. an air cylinder; 6. separating the shifting fork; 7. a clutch assembly; 8. and a clutch switch.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments.
As shown in figure 1, when the clutch needs to be disconnected, a driver steps on a clutch pedal 1, hydraulic oil is pressed into a cylinder of a clutch booster 3 by a piston of a clutch master cylinder 2 through an oil pipe, a booster servo valve is started by the movement of the piston of the cylinder of the booster, an air source of an air storage cylinder 5 enters the cylinder of the booster through the servo valve, and the cylinder piston pushes/pulls a clutch assembly 7 to be separated through a separation shifting fork 6 and a shifting fork. When the clutch needs to be combined, a driver releases the clutch pedal 1, hydraulic oil returns to the clutch master cylinder 2, the master cylinder resets, then gas in the cylinder of the clutch booster 3 is discharged, the booster resets, and finally the clutch is combined.
The invention discloses a clutch wear alarm system which comprises a sensor 4 which is arranged on a clutch booster 3 and used for measuring a displacement scale value of the booster, wherein in the embodiment, the sensor 4 adopts a displacement sensor, the displacement sensor 4 is connected with a vehicle control unit VECU, the vehicle control unit is connected with a clutch switch 8, and the clutch booster 3 is connected with a clutch assembly 7 through a separation shifting fork 6.
When the clutch assembly 7 is combined (the clutch switch 8 is not activated), the displacement sensor 4 on the clutch booster 3 can read the scale value.
In this embodiment, a clutch wear alarm system further includes an alarm circuit, and the alarm circuit is connected with the vehicle control unit, and the alarm circuit includes an instrument, an indicator light, and a buzzer that are used for displaying numerical values.
Referring to fig. 2-3, a method for determining clutch wear, in which a displacement sensor is added to the tail of a clutch booster to measure the movement displacement of the piston of the booster; the method comprises the following steps:
a. after a clutch is assembled or replaced by a new vehicle, the displacement sensor 4 records an initial scale value A (needing real vehicle calibration) when the clutch assembly 7 is combined (the clutch switch 8 is not activated);
b. in the using process of the vehicle, the displacement sensor 4 continuously records and updates a scale value B when the clutch assembly 7 is combined, and meanwhile, the VECU calculates and updates a scale difference value C (calculated according to the wear thickness of the clutch), wherein the scale difference C is equal to the scale value B-scale value A;
c. when the scale difference C is larger than the set limit scale difference L, the instrument can give an audible alarm (multifunctional buzzer), a light alarm (indicator light) and a text prompt alarm (instrument) to the driver, and prompt the user to replace the clutch in time.
Meanwhile, the VECU records the service life of the clutch (the VECU records the following information when the friction plate of the clutch is worn by 1mm, namely the time and mileage corresponding to the wear of the friction plate of each 1 mm), and finally forms big data of the service life of the whole vehicle clutch, which is used for product lifting, real-time alarm of the wear of the clutch plate and predictive maintenance.
| Vehicle model | Vehicle identification (VIN code) | Time of day | Mileage | Wear stroke of booster |
| 1mm | ||||
| 2mm | ||||
| … | ||||
| Wear to alarm value |
The clutch booster 3 is connected with the clutch assembly 7 through a separating fork 6, if the clutch friction plate has an allowable limit abrasion thickness S, and the lever ratio of the separating fork 6 is i, the limit scale difference L set by the VECU is S i (when the models of the gearbox and the clutch are changed, the L value needs to be calibrated again).
The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A clutch wear alarm system characterized in that: the device comprises a sensor which is arranged on a clutch booster and used for measuring a displacement scale value of the booster, wherein the sensor is connected with a vehicle control unit, the vehicle control unit is connected with a clutch switch, and the clutch booster is connected with a clutch assembly through a separation shifting fork.
2. The clutch wear warning system of claim 1, wherein: the sensor is a displacement sensor.
3. The clutch wear warning system of claim 1, wherein: the vehicle-mounted monitoring system further comprises an alarm circuit, and the alarm circuit is connected with the vehicle control unit.
4. The clutch wear warning system of claim 3, wherein: the alarm circuit comprises a meter for displaying numerical values, an indicator light and a buzzer.
5. A method for judging clutch wear is characterized in that: a displacement sensor is added at the tail part of the clutch booster and is used for measuring the movement displacement of the piston of the booster; the method comprises the following steps:
a. after a clutch is assembled or replaced by a new vehicle, the displacement sensor records an initial scale value A when the clutch is combined;
b. in the using process of a vehicle, the displacement sensor can continuously record and update a scale value B when the clutch is combined, and meanwhile, the VECU can calculate and update a scale difference C in real time, wherein the scale difference C is the scale value B-scale value A;
c. when the scale difference C is larger than a set limit value (when the scale difference C is larger than the set limit value, the instrument can give an audible alarm, a light alarm and a text prompt alarm to a driver, and meanwhile, the VECU can record the service life of the clutch.
6. The method for judging the clutch wear is characterized in that the allowable limit wear thickness S exists on a clutch friction plate, the lever ratio of a release fork is i, the limit scale difference L set by the VECU is S x i, and when the scale difference C is larger than or equal to the limit scale difference L, the instrument gives an alarm to a driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010307514.7A CN111442044A (en) | 2020-04-17 | 2020-04-17 | Clutch wear alarm system and judgment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010307514.7A CN111442044A (en) | 2020-04-17 | 2020-04-17 | Clutch wear alarm system and judgment method |
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| Publication Number | Publication Date |
|---|---|
| CN111442044A true CN111442044A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010307514.7A Pending CN111442044A (en) | 2020-04-17 | 2020-04-17 | Clutch wear alarm system and judgment method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896249A (en) * | 2020-08-06 | 2020-11-06 | 中国重汽集团济南动力有限公司 | Method and system for predicting service life of clutch with displacement sensor booster |
| CN111947922A (en) * | 2020-08-14 | 2020-11-17 | 中国重汽集团济南动力有限公司 | Clutch wear monitoring device and method |
| CN112413018A (en) * | 2020-11-18 | 2021-02-26 | 潍柴动力股份有限公司 | Wear alarm method, device, equipment and storage medium of electronic clutch |
| CN113864371A (en) * | 2021-11-01 | 2021-12-31 | 中国第一汽车股份有限公司 | Wet clutch and abrasion loss detection method thereof |
| CN115217872A (en) * | 2022-07-14 | 2022-10-21 | 东风商用车有限公司 | Clutch temperature measuring equipment on whole vehicle, assembling method and measuring method |
-
2020
- 2020-04-17 CN CN202010307514.7A patent/CN111442044A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896249A (en) * | 2020-08-06 | 2020-11-06 | 中国重汽集团济南动力有限公司 | Method and system for predicting service life of clutch with displacement sensor booster |
| CN111947922A (en) * | 2020-08-14 | 2020-11-17 | 中国重汽集团济南动力有限公司 | Clutch wear monitoring device and method |
| CN112413018A (en) * | 2020-11-18 | 2021-02-26 | 潍柴动力股份有限公司 | Wear alarm method, device, equipment and storage medium of electronic clutch |
| CN112413018B (en) * | 2020-11-18 | 2022-07-15 | 潍柴动力股份有限公司 | Wear alarm method, device, equipment and storage medium of electronic clutch |
| CN113864371A (en) * | 2021-11-01 | 2021-12-31 | 中国第一汽车股份有限公司 | Wet clutch and abrasion loss detection method thereof |
| CN115217872A (en) * | 2022-07-14 | 2022-10-21 | 东风商用车有限公司 | Clutch temperature measuring equipment on whole vehicle, assembling method and measuring method |
| CN115217872B (en) * | 2022-07-14 | 2023-05-12 | 东风商用车有限公司 | Clutch temperature measurement equipment on whole vehicle, assembly method and measurement method |
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