CN105150926A - Vehicle transmission system protective method - Google Patents
Vehicle transmission system protective method Download PDFInfo
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- CN105150926A CN105150926A CN201510521227.5A CN201510521227A CN105150926A CN 105150926 A CN105150926 A CN 105150926A CN 201510521227 A CN201510521227 A CN 201510521227A CN 105150926 A CN105150926 A CN 105150926A
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- engine speed
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Abstract
The invention relates to the field of automobile control, in particular to a transmission system protective method. According to the vehicle transmission system protective method, after an alarm controller collects rotation speed data of an engine once in every rotation speed sampling period, operation is conducted as follows; a counter is arranged in the alarm controller, and according to a judgment result, the alarm controller selects not to act or give an alarm or give an alarm when the accumulative number exceeds a limitation. According to the vehicle transmission system protective method, the possibility of resonance of a dual mass flywheel is actively judged by setting safety conditions, a driver can increase the throttle index or downshift or put an automobile into the neutral gear so as to destroy resonance conditions, and therefore resonance of the dual mass flywheel is avoided; during judgment, the influence coefficients at different rotation speeds are fully considered, a weighted calculation manner is adopted for accumulation, and therefore the judgment accuracy is improved; and on the premise of not influencing drive to the greatest extent, the service life of the dual mass flywheel is prolonged, and a transmission system is effectively protected.
Description
Technical field
The present invention relates to field of automobile control, particularly relate to a kind of driving system guard method.
Background technology
The automotive technology development in the present age is at a tremendous pace, and especially the auto trade of China, has developed into the large country of consumption of the first in the world.Contemporary automotive uses double mass flywheel as the drive disk assembly between driving engine and change speed gear box usually, along with user is to the raising day by day of the technical requirements of automobile, the use of double mass flywheel reduces noise, improves driving, but along with the generally use of double mass flywheel, its slow speed of revolution resonance problem highlights day by day.
Detect and pass through the scheme that vehicle-mounted computer ECU controls double mass flywheel resonance, in recent years progressively having developed into the main flow controlling driving system resonance.
How to detect double mass flywheel resonate and take intervening measure, destroying resonant condition has become the important subject studied now and prevent driving system from resonating.
In current double mass flywheel resonance detection technique; double mass flywheel degree of cyclic irregularity detection method becomes main flow gradually; but the scheme of its protection double mass flywheel is just taken measures after the mode of being shaken by engine speed detects the resonance of double mass flywheel; it is a kind of passive safety method; the resonance of double mass flywheel can not be eliminated completely, the service life of double mass flywheel can be affected to a certain extent.The measure taked after resonance being detected can cause vehicle to stop working or limit is turned round, and this can reduce the driver comfort of user further.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of vehicle drive system guard method and adopts the mode of setting safety condition initiatively to judge the possibility that double mass flywheel resonates; chaufeur is enable to take improve accelerator open degree, downshift or hang the operations such as neutral according to prompting in time; resonant condition is destroyed with this; avoid the generation of double mass flywheel resonance, improve the service life of double mass flywheel.
The present invention is achieved in that a kind of vehicle drive system guard method; first engine speed one-level threshold value, engine speed secondary threshold, rotating speed sampling period and cumulative alarm threshold value is set; wherein engine speed secondary threshold is less than engine speed one-level threshold value; alarm controller operates after gathering an engine speed data at interval of the rotating speed sampling period in the following manner, is provided with counting machine in described alarm controller:
1) when the engine speed collected >=engine speed one-level threshold value, driving system is in safe operating mode, counter O reset, and alarm controller is failure to actuate;
2) when engine speed secondary threshold < engine speed≤engine speed one-level threshold value, counting machine in alarm controller to add up corresponding numerical value according to engine speed, when count value as cumulative rear counting machine exceedes cumulative alarm threshold value, alarm controller is reported to the police; When count value as cumulative rear counting machine is no more than cumulative alarm threshold value, alarm controller is failure to actuate;
3) when the engine speed < engine speed secondary threshold collected, alarm controller is reported to the police.
When described alarm controller is reported to the police, chaufeur is selected improve accelerator open degree, downshift or hang neutral.
Described alarm controller Selection utilization read-out, indicator lamp, buzzer phone are reported to the police.
Described alarm controller records alarm message with eeprom, eprom or flash of vehicle-mounted computer ECU after reporting to the police.
Vehicle drive system guard method of the present invention adopts the mode of setting safety condition initiatively to judge the possibility that double mass flywheel resonates, chaufeur is enable to take improve accelerator open degree, downshift or hang the operations such as neutral according to prompting in time, destroy resonant condition with this, avoid the generation of double mass flywheel resonance; Judging it is the influence coefficient fully taken into account under different rotating speeds; adopt the mode of weighted calculation to add up, improve the accuracy of judgement, then under not affecting the prerequisite of driving as far as possible; improve the service life of double mass flywheel, driving system is effectively protected.
Accompanying drawing explanation
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.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's statement.
Embodiment 1
As shown in Figure 1, 2; a kind of vehicle drive system guard method; first engine speed one-level threshold value, engine speed secondary threshold, rotating speed sampling period and cumulative alarm threshold value is set; wherein engine speed secondary threshold is less than engine speed one-level threshold value; alarm controller operates after gathering an engine speed data at interval of the rotating speed sampling period in the following manner, is provided with counting machine in described alarm controller:
1) when the engine speed collected >=engine speed one-level threshold value, driving system is in safe operating mode, counter O reset, and alarm controller is failure to actuate;
2) when engine speed secondary threshold < engine speed≤engine speed one-level threshold value, counting machine in alarm controller to add up corresponding numerical value according to engine speed, when count value as cumulative rear counting machine exceedes cumulative alarm threshold value, alarm controller is reported to the police, this alarm kind is that one-level is reported to the police, when count value as cumulative rear counting machine is no more than cumulative alarm threshold value, alarm controller is failure to actuate;
3) when the engine speed < engine speed secondary threshold collected, alarm controller is reported to the police, this alarm kind is secondary alarm, is stored in eeprom, eprom or flash of vehicle-mounted computer ECU by the information record of this warning simultaneously.
When described alarm controller is reported to the police, chaufeur is selected improve accelerator open degree, downshift or hang neutral; Above operating mode all needs chaufeur to carry out under the premise that security is guaranteed, and when chaufeur takes up-to-date once judgement disengaging alert if after operation, alarm controller stops the warning of corresponding kind.
Consider that the probability produced the harm of driving system and resonance in different rotating speeds situation is not identical, therefore in the present invention, counting machine cumulative is not simple each+1, but experimentally situation determination accumulated value; In the present embodiment, the counting machine in described alarm controller to be chosen by table 1 obtain 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 |
Table 1 engine speed and each accumulated value mapping table of counting machine
Remarks: the relation of accumulated value and engine speed is determined by specific items
In the present embodiment; described alarm controller Selection utilization read-out, indicator lamp, buzzer phone carry out recording warning statistics in eeprom, eprom or the flash reported to the police simultaneously by vehicle-mounted computer ECU; chaufeur is after receiving alarm message; select when ensureing safety to take appropriate measures; such as improve accelerator open degree, downshift or hang the operations such as neutral; make double mass flywheel region out of danger; vehicle operating parameters is recovered normally; corresponding prompting and the meeting of warning recover automatically, and double mass flywheel is effectively protected.
Claims (4)
1. a vehicle drive system guard method; it is characterized in that: first set engine speed one-level threshold value, engine speed secondary threshold, rotating speed sampling period and cumulative alarm threshold value; wherein engine speed secondary threshold is less than engine speed one-level threshold value; alarm controller operates after gathering an engine speed data at interval of the rotating speed sampling period in the following manner, is provided with counting machine in described alarm controller:
1) when the engine speed collected >=engine speed one-level threshold value, driving system is in safe operating mode, counter O reset, and alarm controller is failure to actuate;
2) when engine speed secondary threshold < engine speed≤engine speed one-level threshold value, counting machine in alarm controller to add up corresponding numerical value according to engine speed, when count value as cumulative rear counting machine exceedes cumulative alarm threshold value, alarm controller is reported to the police; When count value as cumulative rear counting machine is no more than cumulative alarm threshold value, alarm controller is failure to actuate;
3) when the engine speed < engine speed secondary threshold collected, alarm controller is reported to the police.
2. vehicle drive system guard method as claimed in claim 1, is characterized in that: when described alarm controller is reported to the police, and chaufeur is selected improve accelerator open degree, downshift or hang neutral.
3. vehicle drive system guard method as claimed in claim 1, is characterized in that: described alarm controller Selection utilization read-out, indicator lamp, buzzer phone are reported to the police.
4. vehicle drive system guard method as claimed in claim 1, is characterized in that: described alarm controller records alarm message with eeprom, eprom or flash of vehicle-mounted computer ECU after reporting to the police.
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 |
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| Publication Number | Publication Date |
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| CN105150926A true CN105150926A (en) | 2015-12-16 |
| CN105150926B CN105150926B (en) | 2017-10-13 |
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| CN201510521227.5A Active CN105150926B (en) | 2015-08-24 | 2015-08-24 | Vehicle drive system guard method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604697A (en) * | 2015-12-28 | 2016-05-25 | 潍柴动力股份有限公司 | Method and device for warning vehicle torque limit and vehicle speed limit |
| CN111255583A (en) * | 2020-01-20 | 2020-06-09 | 东风汽车集团有限公司 | Protection control method and storage medium for dual-mass flywheel of engine |
| CN113218664A (en) * | 2021-04-22 | 2021-08-06 | 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 |
-
2015
- 2015-08-24 CN CN201510521227.5A patent/CN105150926B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604697A (en) * | 2015-12-28 | 2016-05-25 | 潍柴动力股份有限公司 | Method and device for warning vehicle torque limit and vehicle speed limit |
| 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 |
| CN111255583A (en) * | 2020-01-20 | 2020-06-09 | 东风汽车集团有限公司 | Protection control method and storage medium for dual-mass flywheel of engine |
| CN113218664A (en) * | 2021-04-22 | 2021-08-06 | 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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| Publication number | Publication date |
|---|---|
| CN105150926B (en) | 2017-10-13 |
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