CN113864354B - Flywheel clutch heat dissipation device control method - Google Patents
Flywheel clutch heat dissipation device control method Download PDFInfo
- Publication number
- CN113864354B CN113864354B CN202111154907.XA CN202111154907A CN113864354B CN 113864354 B CN113864354 B CN 113864354B CN 202111154907 A CN202111154907 A CN 202111154907A CN 113864354 B CN113864354 B CN 113864354B
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- Prior art keywords
- clutch
- flywheel
- ecu
- air
- storage tank
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/72—Features relating to cooling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a flywheel clutch heat dissipation device control method, which is based on a flywheel clutch heat dissipation device, wherein an ECU judges the state of a clutch based on the speed ratio of the rotational speed of an engine and the rotational speed of an output shaft of a gearbox, if the clutch is in a semi-clutch state for a long time or is separated for a plurality of times in a certain time, the surface of the flywheel and the clutch are in sliding friction for a long time, the surface temperature of a friction plate of the flywheel and the clutch is rapidly increased due to sliding friction, at the moment, the ECU opens an electromagnetic valve of an air storage tank according to the speed ratio of the rotational speed of the engine and the rotational speed of the output shaft of the gearbox when judging that the clutch is in sliding friction for a long time or is separated for a plurality of times in a short time, air in the air storage tank is driven into the inner cavity of a flywheel shell, and the surface of the flywheel and the clutch are actively cooled, so that the problems of Wen Guilie caused by sliding friction between the flywheel and the clutch are solved, and the service life of the flywheel and the clutch is long.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a control method of a flywheel clutch heat dissipation device.
Background
When the clutch pedal is released, the flywheel and the clutch friction plate are in sliding friction, and high temperature is generated in the combining process, so that the flywheel is cracked due to high temperature and the clutch friction plate is ablated. The existing flywheel mainly relies on the mode of adding heat dissipation ribs on the back to passively dissipate heat, and the heat dissipation effect is poor.
Disclosure of Invention
In order to solve the above-mentioned shortcomings, the invention aims to provide a control method of a flywheel clutch heat dissipation device, which actively cools the flywheel and the clutch when the flywheel and the clutch need to dissipate heat, and solves the problems of high Wen Guilie caused by sliding friction between the flywheel and the clutch, clutch burning and the like.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a flywheel clutch heat dissipating double-fuselage control method, this method is based on flywheel clutch heat dissipating double-fuselage;
the flywheel clutch heat dissipation device comprises an air inlet pipeline, an electromagnetic valve, an air storage tank and an ECU, wherein the air inlet pipeline is respectively connected with an air inlet of a flywheel shell and the air storage tank, the flywheel shell is also provided with an air outlet, the electromagnetic valve is electrically connected with the ECU, and the electromagnetic valve is used for controlling the on-off of the air inlet pipeline and the air storage tank;
the method comprises the following steps:
s1, the ECU judges the state of the clutch based on the speed ratio of the rotation speed of the engine and the rotation speed of the output shaft of the gearbox, if the clutch is judged to be in a multi-clutch state or in a semi-clutch state for a long time, S2 is executed, otherwise S7 is executed,
wherein if the speed ratio exceeds the calibration value, the ECU judges that the clutch is in a multi-clutch state when the number of times that the speed ratio exceeds the calibration value exceeds the calibration number of times in the first calibration time in the process of gear engagement or clutch engagement,
when the time that the difference value between the actual speed ratio of the gearbox in a certain gear and the calibrated speed ratio of the gearbox in the gear exceeds the calibrated deviation exceeds the second calibrated time, the ECU judges that the clutch is in a half-clutch state for a long time;
s2, judging whether the system runs normally or not by the ECU, if the ECU detects that the transmission gear signal, the clutch signal, the electromagnetic valve signal and the pressure sensor signal do not have overtime faults, judging that the system runs normally, executing S3, otherwise, executing S7;
s3, the ECU judges whether the gearbox is in a neutral position, if not, S4 is executed, otherwise S7 is executed;
s4, the ECU judges whether the air pressure value of the air storage tank meets the cooling requirement, if the air pressure value of the air storage tank detected by the pressure sensor is larger than a calibration value, the air pressure value of the air storage tank is defaulted to meet the cooling requirement, S5 is executed, and otherwise S7 is executed;
s5, the ECU controls the electromagnetic valve to be opened, the air storage tank releases air to the inner cavity of the flywheel shell through an air inlet pipeline, and the flywheel and the clutch are cooled;
s6, when the ECU detects that the opening time of the electromagnetic valve reaches the target time, the ECU controls the electromagnetic valve to be closed;
s7, ending.
Preferably, the target time is obtained by searching for a time-rotation speed MAP calibrated in advance according to the rotation speed of the engine in the current state.
Preferably, steps S3 and S4 are interchangeable in order.
Preferably, steps S3 and S4 may be performed simultaneously.
Preferably, the intake line is provided with a muffler.
After the technical scheme is adopted, the invention has the beneficial effects that:
when the clutch is in a half-clutch state for a long time or is separated for a plurality of times within a certain time, the surface of the flywheel and the clutch are in sliding friction for a long time, the surface temperature of the flywheel and the friction plate of the clutch is rapidly increased due to sliding friction, at the moment, the ECU opens the electromagnetic valve of the air storage tank when judging that the clutch is in sliding friction for a long time or is separated for a plurality of times within a short time, and the air in the air storage tank is pumped into the inner cavity of the flywheel shell to actively cool the surface of the flywheel and the clutch, so that the problem that the flywheel and the clutch are high Wen Guilie due to sliding friction is solved, the problem of plate burning of the clutch is solved, and the service life of the flywheel and the clutch is long.
Drawings
FIG. 1 is a schematic structural view of a flywheel clutch heat sink;
FIG. 2 is a schematic bottom view of FIG. 1;
FIG. 3 is a schematic side elevational view of the flywheel of FIG. 1;
FIG. 4 is a flow chart of a method of controlling a flywheel clutch heat sink in accordance with the present invention;
in the figure: 1. flywheel casing; 2. an air inlet joint; 3. an air intake line; 4. a clutch; 5. a gas storage tank; 6. a muffler; 7. an air outlet; 8. and (3) a flywheel.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, 2 and 3 together, a flywheel clutch heat dissipation device, flywheel housing 1 is provided with an air inlet and an air outlet 7 communicated with its inner cavity, the air inlet is provided with an air inlet joint 2 connected with an air inlet pipeline 3, the flywheel clutch heat dissipation device comprises: the air inlet pipeline 3, the solenoid valve, the cooling air source and the controller, the cooling air source is preferably the gas holder 5 of vehicle, the controller is preferably the ECU of engine, the air inlet pipeline 3 is connected with the gas outlet of gas holder 5, the gas outlet department of gas holder 5 is located to the solenoid valve, the solenoid valve is connected with the ECU electricity, the solenoid valve is used for controlling the break-make of air inlet pipeline 3 and gas holder 5.
The air storage tank 5 is provided with a pressure sensor for detecting the air pressure inside the air storage tank, and the air inlet pipeline 3 is provided with a silencer 6.
The control method of the flywheel clutch heat dissipation device is based on the flywheel clutch heat dissipation device and comprises the following steps of:
s1, the ECU judges the state of the clutch 4 based on the speed ratio of the engine speed and the speed of the output shaft of the gearbox, if the clutch 4 is judged to be in a multi-clutch state or in a half-clutch state for a long time, S2 is executed, otherwise S7 is executed,
if the speed ratio exceeds the calibration value, the ECU judges that the clutch 4 is in a gear or in the clutch process, if the number of times of the speed ratio exceeding the calibration value exceeds the calibration number of times in the first calibration time, the ECU judges that the clutch 4 is in a multiple clutch state,
when the time that the difference value of the actual speed ratio of the gearbox in a certain gear and the calibrated speed ratio of the gearbox in the gear exceeds the calibrated deviation exceeds the second calibrated time, the ECU judges that the clutch 4 is in a half-clutch state for a long time;
s2, the ECU judges whether the system normally operates, if the ECU detects that the transmission gear signal, the clutch signal, the electromagnetic valve signal and the pressure sensor signal do not have overtime faults, the system is judged to normally operate, S3 is executed, and otherwise S7 is executed;
s3, the ECU judges whether the gearbox is in a neutral position, if the gearbox is not in the neutral position, S4 is executed, otherwise S7 is executed;
s4, the ECU judges whether the air pressure value of the air storage tank 5 meets the cooling requirement, if the air pressure value of the air storage tank 5 detected by the pressure sensor is larger than a calibration value, the air storage tank 5 defaults to meet the cooling requirement, the air storage tank 5 has sufficient air, the cooling requirements of the flywheel 8 and the clutch 4 are met, the braking effect of the vehicle is not affected, S5 is executed, and otherwise S7 is executed;
s5, the ECU controls the electromagnetic valve to be opened, the air storage tank 5 releases air to the inner cavity of the flywheel housing 1 through the air inlet pipeline 3, and the flywheel 8 and the clutch 4 are cooled;
s6, when the ECU detects that the opening time of the electromagnetic valve reaches the target time, the ECU controls the electromagnetic valve to be closed;
s7, ending.
And searching a time-rotating speed MAP calibrated in advance according to the rotating speed of the engine in the current state to obtain target time. Steps S3 and S4 may be interchanged in order, and steps S3 and S4 may also be performed simultaneously.
When the clutch 4 is in a half-clutch state for a long time or is separated for a plurality of times within a certain time, the surface of the flywheel 8 and the clutch 4 are in sliding friction for a long time, the surface temperature of a friction plate of the flywheel 8 and the clutch 4 is rapidly increased due to sliding friction, at the moment, the ECU opens an electromagnetic valve of the air storage tank 5 when judging that the clutch 4 is in sliding friction for a long time or is separated for a plurality of times within a short time according to the speed ratio of the rotation speed of an engine to the rotation speed of an output shaft of a gearbox, and air in the air storage tank 5 is pumped into an inner cavity of the flywheel shell 1 to actively cool the surface of the flywheel 8 and the clutch 4, so that the problem that the flywheel 8 and the clutch 4 are high Wen Guilie due to sliding friction is solved, the plate burning of the clutch 4 is solved, and the service lives of the flywheel 8 and the clutch 4 are long.
The foregoing is illustrative of the best mode of carrying out the invention, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the invention is defined by the claims, and any equivalent transformation based on the technical teaching of the invention is also within the protection scope of the invention.
Claims (5)
1. The control method of the flywheel clutch heat dissipation device is characterized in that the method is based on the flywheel clutch heat dissipation device;
the flywheel clutch heat dissipation device comprises an air inlet pipeline, an electromagnetic valve, an air storage tank and an ECU, wherein the air inlet pipeline is respectively connected with an air inlet of a flywheel shell and the air storage tank, the flywheel shell is also provided with an air outlet, the electromagnetic valve is electrically connected with the ECU, and the electromagnetic valve is used for controlling the on-off of the air inlet pipeline and the air storage tank;
the method comprises the following steps:
s1, the ECU judges the state of the clutch based on the speed ratio of the rotation speed of the engine and the rotation speed of the output shaft of the gearbox, if the clutch is judged to be in a multi-clutch state or in a semi-clutch state for a long time, S2 is executed, otherwise S7 is executed,
wherein if the speed ratio exceeds the calibration value, the ECU judges that the clutch is in a multi-clutch state when the number of times that the speed ratio exceeds the calibration value exceeds the calibration number of times in the first calibration time in the process of gear engagement or clutch engagement,
when the time that the difference value between the actual speed ratio of the gearbox in a certain gear and the calibrated speed ratio of the gearbox in the gear exceeds the calibrated deviation exceeds the second calibrated time, the ECU judges that the clutch is in a half-clutch state for a long time;
s2, judging whether the system runs normally or not by the ECU, if the ECU detects that the transmission gear signal, the clutch signal, the electromagnetic valve signal and the pressure sensor signal do not have overtime faults, judging that the system runs normally, executing S3, otherwise, executing S7;
s3, the ECU judges whether the gearbox is in a neutral position, if not, S4 is executed, otherwise S7 is executed;
s4, the ECU judges whether the air pressure value of the air storage tank meets the cooling requirement, if the air pressure value of the air storage tank detected by the pressure sensor is larger than a calibration value, the air pressure value of the air storage tank is defaulted to meet the cooling requirement, S5 is executed, and otherwise S7 is executed;
s5, the ECU controls the electromagnetic valve to be opened, the air storage tank releases air to the inner cavity of the flywheel shell through an air inlet pipeline, and the flywheel and the clutch are cooled;
s6, when the ECU detects that the opening time of the electromagnetic valve reaches the target time, the ECU controls the electromagnetic valve to be closed;
s7, ending.
2. The flywheel clutch radiator control method according to claim 1, wherein the target time is obtained by searching for a time-rotation speed MAP calibrated in advance according to the rotation speed of the engine in the current state.
3. The method of controlling a flywheel clutch heat sink as claimed in claim 1, wherein steps S3 and S4 are interchangeable in sequence.
4. The method of controlling a flywheel clutch heat sink as claimed in claim 1, wherein steps S3 and S4 are performed simultaneously.
5. The flywheel clutch heat sink control method as claimed in claim 1, wherein the intake pipe is provided with a muffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154907.XA CN113864354B (en) | 2021-09-29 | 2021-09-29 | Flywheel clutch heat dissipation device control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154907.XA CN113864354B (en) | 2021-09-29 | 2021-09-29 | Flywheel clutch heat dissipation device control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113864354A CN113864354A (en) | 2021-12-31 |
| CN113864354B true CN113864354B (en) | 2023-11-17 |
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|---|---|---|---|
| CN202111154907.XA Active CN113864354B (en) | 2021-09-29 | 2021-09-29 | Flywheel clutch heat dissipation device control method |
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