CN105150926B - Vehicle drive system guard method - Google Patents
Vehicle drive system guard method Download PDFInfo
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- CN105150926B CN105150926B CN201510521227.5A CN201510521227A CN105150926B CN 105150926 B CN105150926 B CN 105150926B CN 201510521227 A CN201510521227 A CN 201510521227A CN 105150926 B CN105150926 B CN 105150926B
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- alarm
- engine speed
- alarm controller
- threshold value
- guard method
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Abstract
The present invention relates to field of automobile control, more particularly to a kind of transmission system guard method.A kind of vehicle drive system guard method, alarm controller is operated as follows after gathering an engine speed data at interval of the rotating speed sampling period, and counter is provided with the alarm controller：According to result of determination selection alarm controller is carried out to be failure to actuate, alarm controller alarm or it is cumulative transfinite after alarm equipment alarm.The present invention actively judges the possibility of double mass flywheel resonance by the way of setting safety condition, enable a driver to take raising accelerator open degree, downshift according to prompting in time or hang the operation such as neutral, resonance condition destroyed with this, it is to avoid the generation of double mass flywheel resonance；It is to fully take into account the influence coefficient under different rotating speeds judging; added up by the way of weighted calculation, improve the accuracy of judgement, then on the premise of not influenceing driving as far as possible; improve the service life of double mass flywheel so that transmission system is effectively protected.
Description
Technical field
The present invention relates to field of automobile control, more particularly to a kind of transmission system guard method.
Background technology
The automotive technology development in the present age is at a tremendous pace, especially Chinese automobile industry, has evolved into the first in the world
Big country of consumption.Contemporary automotive usually using double mass flywheel as the drive disk assembly between engine and gearbox, with user
Increasingly raising to the technical requirements of automobile, the use of double mass flywheel reduces noise, improves driving, but with double
Mass flywheel is generally used, and its slow-speed of revolution resonance problem increasingly highlights.
The scheme for detecting and controlling double mass flywheel to resonate by vehicle-mounted computer ECU, has evolved into control in recent years
The main flow of transmission system resonance.
How to detect that double mass flywheel resonates and takes intervening measure, destruction resonance condition has become current research and prevented
The important subject of transmission system resonance.
In current double mass flywheel resonance detection technique, double mass flywheel fluctuation of speed detection method has been increasingly becoming master
Stream, but it protects the scheme of double mass flywheel to be the resonance for detecting double mass flywheel by way of engine speed is shaken
Just take measures afterwards, be a kind of passive safeguard measure, the resonance of double mass flywheel can not be completely eliminated, to a certain degree
On can influence the service life of double mass flywheel.Detecting the measure taken after resonance can cause vehicle stall or limit to be turned round, this
The driver comfort of user can further be reduced.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of vehicle drive system guard method using the safe bar of setting
The mode of part actively judges the possibility of double mass flywheel resonance, enables a driver to take raising throttle to open according to prompting in time
Degree, downshift hang the operation such as neutral, resonance condition is destroyed with this, it is to avoid the generation of double mass flywheel resonance, improve double
The service life of mass flywheel.
What the present invention was realized in：A kind of vehicle drive system guard method, sets engine speed one-level threshold first
Value, engine speed secondary threshold, rotating speed sampling period and cumulative alarm threshold value, wherein engine speed secondary threshold are less than hair
Motivation rotating speed one-level threshold value, alarm controller is gathered after an engine speed data according to as follows at interval of the rotating speed sampling period
Mode is operated, and counter is provided with the alarm controller：
1) when the engine speed collected >=engine speed one-level threshold value, transmission system is in safe operating mode, meter
Number device is reset, and alarm controller is failure to actuate；
2) when engine speed secondary threshold<During engine speed≤engine speed one-level threshold value, in alarm controller
Counter added up corresponding numerical value according to engine speed, it is such as cumulative after the count value of counter exceed cumulative alarm threshold value
When, alarm controller alarm；When the count value of counter is no more than cumulative alarm threshold value after such as adding up, alarm controller is motionless
Make；
3) when the engine speed collected<During engine speed secondary threshold, alarm controller alarm.
When described alarm controller alarm, driver's selection improves accelerator open degree, downshift or hangs neutral.
The alarm controller Selection utilization display screen, indicator lamp, buzzer are alarmed.
With vehicle-mounted computer ECU eeprom, eprom or flash record warning message after the alarm controller alarm.
Vehicle drive system guard method of the present invention actively judges that double mass flywheel is total to by the way of setting safety condition
The possibility shaken, enables a driver to take raising accelerator open degree, downshift according to prompting in time or hangs the operation such as neutral, with this
Destroy resonance condition, it is to avoid the generation of double mass flywheel resonance；It is to fully take into account the influence system under different rotating speeds judging
Number, is added up by the way of weighted calculation, improves the accuracy of judgement, then on the premise of not influenceing driving as far as possible, is carried
The high service life of double mass flywheel so that transmission system is effectively protected.
Brief description of the drawings
Fig. 1 is the schematic diagram of vehicle drive system guard method of the present invention；
Fig. 2 is the FB(flow block) of vehicle drive system guard method of the present invention.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention stated has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiment 1
As shown in Figure 1, 2, a kind of vehicle drive system guard method, sets engine speed one-level threshold value, starts first
Machine rotating speed secondary threshold, rotating speed sampling period and cumulative alarm threshold value, wherein engine speed secondary threshold turn less than engine
Fast one-level threshold value, alarm controller enters as follows after gathering an engine speed data at interval of the rotating speed sampling period
Counter is provided with row operation, the alarm controller：
1) when the engine speed collected >=engine speed one-level threshold value, transmission system is in safe operating mode, meter
Number device is reset, and alarm controller is failure to actuate；
2) when engine speed secondary threshold<During engine speed≤engine speed one-level threshold value, in alarm controller
Counter added up corresponding numerical value according to engine speed, it is such as cumulative after the count value of counter exceed cumulative alarm threshold value
When, alarm controller alarm, this alarm species is alarmed for one-level, and the count value of such as cumulative rear counter is no more than cumulative alarm
During threshold value, alarm controller is failure to actuate；
3) when the engine speed collected<During engine speed secondary threshold, alarm controller alarm, this alarm kind
Class is secondary alarm, while the information record of this alarm to be stored into vehicle-mounted computer ECU eeprom, eprom or flash
In.
When described alarm controller alarm, driver's selection improves accelerator open degree, downshift or hangs neutral；Grasp above
It is required for driver to carry out under the premise that security is guaranteed as mode, it is newest after driver takes operation once to judge to depart from report
During alert condition, alarm controller stops the alarm of correspondence species.
The probability produced in view of the harm in the case of different rotating speeds to transmission system and resonance is different from, therefore
In the present invention, the cumulative of counter is not simple each+1, but determines accumulated value according to experimental conditions；In the present embodiment
In, counter in the alarm controller is chosen by table 1 and obtained according to the engine speed corresponding numerical value that adds up,
| Engine speed（rpm） | [500,600) | [600~800) | [800~950) | [950, one-level threshold value) |
| Accumulated value | 5 | 3 | 2 | 1 |
The engine speed of table 1 and each accumulated value mapping table of counter
Remarks：The relation of accumulated value and engine speed is determined by detailed programs
In the present embodiment, the alarm controller Selection utilization display screen, indicator lamp, buzzer alarm leads to simultaneously
Record alarm statistics in vehicle-mounted computer ECU eeprom, eprom or flash is crossed, driver is receiving warning message
Afterwards, select to take appropriate measures in the case where ensureing safety, such as improve accelerator open degree, downshift or hang the operation such as neutral,
Make double mass flywheel region out of danger, after vehicle operating parameters recovery is normal, corresponding prompting and alarm can recover automatically, make
Double mass flywheel is obtained to be effectively protected.
Claims (4)
1. a kind of vehicle drive system guard method, actively judges double mass flywheel resonance by way of setting safety condition
Possibility, enables a driver to the resonance condition of operation destruction in time, it is characterized in that：First setting engine speed one-level threshold value,
Engine speed secondary threshold, rotating speed sampling period and cumulative alarm threshold value, wherein engine speed secondary threshold, which are less than, to be started
Machine rotating speed one-level threshold value, alarm controller is gathered after an engine speed data according to such as lower section at interval of the rotating speed sampling period
Formula is operated, and counter is provided with the alarm controller：
1) when the engine speed collected >=engine speed one-level threshold value, transmission system is in safe operating mode, counter
Reset, alarm controller is failure to actuate；
2) when engine speed secondary threshold<During engine speed≤engine speed one-level threshold value, the meter in alarm controller
Number device adds up corresponding numerical value according to engine speed, it is such as cumulative after the count value of counter when exceeding cumulative alarm threshold value, report
Alert controller alarm；When the count value of counter is no more than cumulative alarm threshold value after such as adding up, alarm controller is failure to actuate；
3) when the engine speed collected<During engine speed secondary threshold, alarm controller alarm.
2. vehicle drive system guard method as claimed in claim 1, it is characterized in that：When described alarm controller is alarmed
When, driver's selection improves accelerator open degree, downshift or hangs neutral to destroy resonance condition.
3. vehicle drive system guard method as claimed in claim 1, it is characterized in that：The alarm controller Selection utilization shows
Display screen, indicator lamp, buzzer are alarmed.
4. vehicle drive system guard method as claimed in claim 1, it is characterized in that：Car is used after the alarm controller alarm
Carry computer ECU eeprom, eprom or flash record warning message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510521227.5A CN105150926B (en) | 2015-08-24 | 2015-08-24 | Vehicle drive system guard method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510521227.5A CN105150926B (en) | 2015-08-24 | 2015-08-24 | Vehicle drive system guard method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105150926A CN105150926A (en) | 2015-12-16 |
| CN105150926B true CN105150926B (en) | 2017-10-13 |
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ID=54792093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510521227.5A Active CN105150926B (en) | 2015-08-24 | 2015-08-24 | Vehicle drive system guard method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105150926B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604697B (en) * | 2015-12-28 | 2018-08-31 | 潍柴动力股份有限公司 | A kind of method for warming and device of vehicle torque limit and speed limitation |
| CN111255583B (en) * | 2020-01-20 | 2021-05-11 | 东风汽车集团有限公司 | Protection control method and storage medium for dual-mass flywheel of engine |
| CN113218664B (en) * | 2021-04-22 | 2023-03-21 | 东风柳州汽车有限公司 | Dual-mass flywheel resonance detection method, device, equipment and storage medium |
| CN116110191A (en) * | 2023-04-17 | 2023-05-12 | 淄博市中心医院 | Alarm device for baby theft |
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2015
- 2015-08-24 CN CN201510521227.5A patent/CN105150926B/en active Active
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| CN105150926A (en) | 2015-12-16 |
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