CN111368422A - Dog-tooth type clutch tooth feeding control method - Google Patents
Dog-tooth type clutch tooth feeding control method Download PDFInfo
- Publication number
- CN111368422A CN111368422A CN202010138806.2A CN202010138806A CN111368422A CN 111368422 A CN111368422 A CN 111368422A CN 202010138806 A CN202010138806 A CN 202010138806A CN 111368422 A CN111368422 A CN 111368422A
- Authority
- CN
- China
- Prior art keywords
- meshing
- gear
- sleeve
- tooth
- dog 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.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention relates to a dog clutch tooth feeding control method, which is characterized by comprising the following steps: the method comprises the following steps: 1) determining the range of the meshing initial position of the meshing sleeve and the meshing teeth; 2) judging whether the meshing sleeve and the meshing gear have meshing force or not; 3) correspondingly adjusting the axial driving force provided by the gear shifting motor to the meshing sleeve according to the judgment result of the step 2); compared with the process that the clutch is defaulted to directly engage and then adjust the speed in the prior art, the gear engaging process is expressed in a probability mode in the application, and the process that the engaging sleeve and the engaging gear are directly engaged and engaged after surface friction in the process of mutual engagement is clearly and visually displayed; the tooth surface and the tooth groove of each gear are differentiated and refined, and an accurate judgment standard is provided for whether the meshing sleeve and the meshing gear need to enter a surface friction stage in the meshing process; and reliable basis and theoretical reference are provided for the later optimization of the axial driving force provided by the corresponding gear shifting motor.
Description
Technical Field
The invention belongs to the technical field of driving control of new energy automobiles, and particularly relates to a dog clutch tooth feeding control method.
Background
With the rapid development of the new energy automobile industry, a pure electric control system has an increasingly wide application prospect in the automobile industry field, and the electric control system in the current commercial vehicle often continues to use a gear shifting mode of a gasoline-driven vehicle when shifting gears.
The clutches used in the prior art are not probabilistic when engaged, and generally the speed regulation process is performed after the default direct gear advance. When the meshing sleeve and the meshing gear on the corresponding shifting side slide together, the contact surface of the dog clutch preferentially enters a surface friction stage, so that surface friction torque is generated, and the axial movement of the meshing sleeve is further possible until the teeth of the meshing sleeve can enter the grooves of the meshing gear on the corresponding shifting side.
The initial relative position of the sleeve and the corresponding side gear determines the relative displacement required for engagement. The prior art has seen the use of kalman filtering and event-based sampling of speed sensors to effectively estimate the position of elements of a drive train. However, the transmission system under investigation has only speed sensors on the input and output shafts of the gearbox. Since the input shaft position cannot determine the position of the secondary shaft during gear disengagement and during gear recombination, respectively, during neutral, and correspondingly, the output shaft position cannot determine the position of the primary shaft. The sensor signals therefore do not allow an accurate estimation of the respective position of the sleeve and the gear wheel when engaged.
Disclosure of Invention
In order to solve the defects and shortcomings in the prior art, the invention provides a dog clutch tooth feeding control method.
The technical scheme adopted by the invention is as follows:
a dog clutch advances tooth control method which characterized in that: the method comprises the following steps:
1) determining the range of the meshing starting position of the meshing sleeve and the meshing gear, wherein the meshing starting position of the meshing sleeve relative to the meshing gear is as follows:
wherein the content of the first and second substances,
ξ0a meshing start position of the meshing sleeve relative to the meshing gear in the circumferential direction;
z is the number of teeth of the meshing sleeve in the dog clutch;
2) judging whether the meshing force exists between the meshing sleeve and the meshing gear, wherein the meshing force between the meshing sleeve and the meshing gear is as follows:
wherein the content of the first and second substances,
FengagingThe result is 1 indicating that the meshing is smooth and the result is 0 indicating that the meshing force exists, which is the meshing force between the sleeve and the meshing gear;
m is the angle occupied by the tooth surface in each gear of the meshing sleeve in the dog clutch;
n is the angle occupied by the tooth groove in each gear of the meshing sleeve in the dog clutch;
and m is more than n;
3) and correspondingly adjusting the axial driving force provided by the gear shifting motor to the meshing sleeve according to the judgment result of the step 2).
Further, in the step 1), the meshing starting position ξ of the meshing sleeve relative to the meshing gear0Are random variables that are uniformly distributed in the direction of the unit circle.
Further, in the step 2), the angle ratio m of the tooth surface to the tooth space in each gear of the meshing sleeve in the dog clutch: n is 2: 3.
further, in the step 3), when the meshing force exists, the axial driving force provided by the gear shifting motor to the meshing sleeve can meet the friction requirement of the meshing force; when the meshing force does not exist, the axial driving force provided by the gear shifting motor to the meshing sleeve can meet the driving requirement that the meshing sleeve moves to the meshing gear in the axial direction.
Compared with the prior art, the invention has the following beneficial effects:
1) compared with the process that the clutch is defaulted to directly enter the meshing and then the speed is adjusted in the prior art, the gear meshing process is expressed in a probability mode in the application, and the process that the meshing sleeve and the meshing gear are meshed after direct meshing and surface friction in the mutual meshing process is clearly and visually displayed.
2) The tooth surface and the tooth groove of each gear are differentiated and refined, and an accurate judgment standard is provided for whether the meshing sleeve and the meshing gear need to enter a surface friction stage in the meshing process.
3) And reliable basis and theoretical reference are provided for the later optimization of the axial driving force provided by the corresponding gear shifting motor.
Drawings
Fig. 1 is a schematic structural diagram of initial positions of a meshing sleeve and a meshing gear in the dog clutch tooth feed control method.
Detailed Description
The following non-limiting examples are presented to enable those of ordinary skill in the art to more fully understand the present invention and are not intended to limit the invention in any way.
As shown in fig. 1, it includes a meshing sleeve a, a meshing gear b,
a dog clutch tooth feeding control method comprises the following steps:
1) determining the range of the meshing initial position of the meshing sleeve and the meshing gear, wherein the meshing initial position of the meshing sleeve relative to the meshing gear is
Wherein the content of the first and second substances,
ξ0a meshing start position of the meshing sleeve relative to the meshing gear in the circumferential direction;
z is the number of teeth of the meshing sleeve in the dog clutch;
this makes ξ0In that
The positions of the meshing gear and the meshing sleeve along the circumference are random, the meshing can be directly realized without a tooth surface friction stage, the meshing can be realized only by rotating the teeth and the sleeve by a certain angle, and therefore, a random variable ξ is introduced0Characterizing the relative position of the spline tooth end surface of the meshing gear and the end surface of the meshing sleeve along the circumference at the beginning of the tooth surface friction stage, wherein the unit is rad;
2) judging whether the meshing force exists between the meshing sleeve and the meshing gear, wherein the meshing force between the meshing sleeve and the meshing gear is as follows:
wherein the content of the first and second substances,
FengagingThe result is 1 indicating that the meshing is smooth and the result is 0 indicating that the meshing force exists, which is the meshing force between the sleeve and the meshing gear;
m is the angle occupied by the tooth surface in each gear of the meshing sleeve in the dog clutch;
n is the angle occupied by the tooth groove in each gear of the meshing sleeve in the dog clutch;
and m is more than n;
for example, assuming that the number of teeth of the sleeve in the dog clutch is 30, the gear is thinned into the tooth surface and the tooth groove in terms of 360 ° of one rotation, that is, the angle represented by one gear (including one tooth surface and one tooth groove) is 12 °, that is, the engagement start position ξ of the sleeve in the formula (1) with respect to the meshing gear in the circumferential direction0In the range of 0-12 °; taking m as 2 and n as 3 in the formula (2), namely distributing the tooth surface and the tooth space in a ratio of 2 to 3 to obtain a tooth surface with one occupied angle4.8 degrees and a tooth slot 7.2 degrees. If the meshing is smooth, the tooth aligning angle of the corresponding meshing tooth between the meshing sleeve and the meshing gear is between 4.8 and 7.2 degrees, and if the tooth aligning angle is smaller than 4.8 degrees or larger than 7.2 degrees, the meshing sleeve and the meshing gear are in the relative sliding friction process. By FEngagingExpressing the engagement force in the engaged state, equation (2) is expressed as:
3) and correspondingly adjusting the axial driving force provided by the gear shifting motor to the meshing sleeve according to the judgment result of the step 2).
Specifically, in the step 1), the meshing starting position ξ of the meshing sleeve relative to the meshing gear0Random variables uniformly distributed in the unit circumference direction; the positions of the meshing gear and the meshing sleeve along the circumference are random, direct meshing can be achieved without a tooth surface friction stage, and meshing can be achieved only by rotating the teeth and the sleeve by a certain angle, so that the meshing starting position of the meshing sleeve relative to the meshing gear is set to be a random variable which is uniformly distributed in the unit circumference direction, the actual meshing condition is better met, the simulation authenticity is further improved, and the accuracy and the reliability of data basis are improved.
Specifically, in the step 2), the angle ratio of the tooth surface to the tooth space in each gear of the meshing sleeve in the dog clutch is m: n is 2: 3, the angular ratio can also be selected to other values, preferably depending on the actual engagement situation.
Specifically, in the step 3), when the meshing force exists, the axial driving force provided by the gear shifting motor to the meshing sleeve can meet the friction requirement of the meshing force, so as to ensure that the gear shifting motor smoothly enters the meshing after the friction stage is passed smoothly; when the meshing force does not exist, the axial driving force provided by the gear shifting motor to the meshing sleeve can meet the driving requirement that the meshing sleeve moves to the meshing gear in the axial direction, so that the meshing can be directly achieved without a friction stage.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A dog clutch advances tooth control method which characterized in that: the method comprises the following steps:
1) determining the range of the meshing starting position of the meshing sleeve and the meshing gear, wherein the meshing starting position of the meshing sleeve relative to the meshing gear is as follows:
wherein the content of the first and second substances,
ξ0a meshing start position of the meshing sleeve relative to the meshing gear in the circumferential direction;
z is the number of teeth of the meshing sleeve in the dog clutch;
2) judging whether the meshing force exists between the meshing sleeve and the meshing gear, wherein the meshing force between the meshing sleeve and the meshing gear is as follows:
wherein the content of the first and second substances,
FengagingThe result is 1 indicating that the meshing is smooth and the result is 0 indicating that the meshing force exists, which is the meshing force between the sleeve and the meshing gear;
m is the angle occupied by the tooth surface in each gear of the meshing sleeve in the dog clutch;
n is the angle occupied by the tooth groove in each gear of the meshing sleeve in the dog clutch;
and m is more than n;
3) and correspondingly adjusting the axial driving force provided by the gear shifting motor to the meshing sleeve according to the judgment result of the step 2).
2. The method as set forth in claim 1, wherein the step 1) is a step of controlling the dog clutch to advance, wherein the starting position ξ of the meshing engagement of the sleeve with respect to the meshing gear is determined0Are random variables that are uniformly distributed in the direction of the unit circle.
3. The dog clutch feed control method according to claim 1, wherein: in the step 2), the angle ratio m of the tooth surface to the tooth socket in each gear of the meshing sleeve in the dog clutch is as follows: n is 2: 3.
4. the dog clutch feed control method according to claim 1, wherein: in the step 3), when the meshing force exists, the axial driving force provided by the gear shifting motor to the meshing sleeve can meet the friction requirement of the meshing force; when the meshing force does not exist, the axial driving force provided by the gear shifting motor to the meshing sleeve can meet the driving requirement that the meshing sleeve moves to the meshing gear in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010138806.2A CN111368422B (en) | 2020-03-03 | 2020-03-03 | Dog-tooth type clutch tooth feeding control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010138806.2A CN111368422B (en) | 2020-03-03 | 2020-03-03 | Dog-tooth type clutch tooth feeding control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111368422A true CN111368422A (en) | 2020-07-03 |
| CN111368422B CN111368422B (en) | 2021-08-13 |
Family
ID=71208390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010138806.2A Active CN111368422B (en) | 2020-03-03 | 2020-03-03 | Dog-tooth type clutch tooth feeding control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111368422B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB213021A (en) * | 1923-01-02 | 1924-03-27 | Alden Emerson Osborn | Improvements in and relating to power transmission gearing |
| CN1108603A (en) * | 1993-07-21 | 1995-09-20 | 易通公司 | System and method for sliding clutch engagement under tooth butt on torque lock conditions |
| CN1662403A (en) * | 2002-06-17 | 2005-08-31 | 沃尔沃·拉斯特韦格纳公司 | Drive means for motor vehicles |
| US20090165582A1 (en) * | 2007-12-27 | 2009-07-02 | Kousuke Tsunashima | Twin clutch type speed-change apparatus |
| JP2014149022A (en) * | 2013-01-31 | 2014-08-21 | Aisin Seiki Co Ltd | Dog clutch control device for automatic transmission |
| CN104074967A (en) * | 2013-03-25 | 2014-10-01 | 爱信精机株式会社 | Automatic shift device for automated transmission for vehicle |
| CN106080155A (en) * | 2016-06-28 | 2016-11-09 | 泰州市海博汽车科技有限公司 | A kind of optimization integrated system driving motor and automatic transmission and shift control method |
| CN109027214A (en) * | 2018-08-17 | 2018-12-18 | 清华大学 | A kind of no-clutch is without synchronizer mechanical automatic gearbox shifting system and method |
| CN110513476A (en) * | 2019-08-16 | 2019-11-29 | 上海蔚来汽车有限公司 | A kind of canine tooth halting mechanism, speed changer, parking method and release parking method |
| CN110617312A (en) * | 2019-09-12 | 2019-12-27 | 何耀华 | All-gear stepless automatic speed change and speed ratio active control system |
-
2020
- 2020-03-03 CN CN202010138806.2A patent/CN111368422B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB213021A (en) * | 1923-01-02 | 1924-03-27 | Alden Emerson Osborn | Improvements in and relating to power transmission gearing |
| CN1108603A (en) * | 1993-07-21 | 1995-09-20 | 易通公司 | System and method for sliding clutch engagement under tooth butt on torque lock conditions |
| CN1662403A (en) * | 2002-06-17 | 2005-08-31 | 沃尔沃·拉斯特韦格纳公司 | Drive means for motor vehicles |
| US20090165582A1 (en) * | 2007-12-27 | 2009-07-02 | Kousuke Tsunashima | Twin clutch type speed-change apparatus |
| JP2014149022A (en) * | 2013-01-31 | 2014-08-21 | Aisin Seiki Co Ltd | Dog clutch control device for automatic transmission |
| CN104074967A (en) * | 2013-03-25 | 2014-10-01 | 爱信精机株式会社 | Automatic shift device for automated transmission for vehicle |
| CN106080155A (en) * | 2016-06-28 | 2016-11-09 | 泰州市海博汽车科技有限公司 | A kind of optimization integrated system driving motor and automatic transmission and shift control method |
| CN109027214A (en) * | 2018-08-17 | 2018-12-18 | 清华大学 | A kind of no-clutch is without synchronizer mechanical automatic gearbox shifting system and method |
| CN110513476A (en) * | 2019-08-16 | 2019-11-29 | 上海蔚来汽车有限公司 | A kind of canine tooth halting mechanism, speed changer, parking method and release parking method |
| CN110617312A (en) * | 2019-09-12 | 2019-12-27 | 何耀华 | All-gear stepless automatic speed change and speed ratio active control system |
Non-Patent Citations (3)
| Title |
|---|
| B.K. POWELL 等: "Dynamic modeling and control of hybrid electric vehicle powertrain systems", 《IEEE CONTROL SYSTEMS MAGAZINE》 * |
| 胡芳芳 等: "内啮合齿式离合器轴向接合过程的冲击特性", 《浙江大学学报(工学版)》 * |
| 高朋: "纯电动汽车换挡控制研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑（月刊）》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111368422B (en) | 2021-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108138948B (en) | Control strategy | |
| KR101676071B1 (en) | Method for operating a transmission device of a vehicle drivetrain | |
| US9043103B2 (en) | Dog clutch control apparatus for automated transmission | |
| CN102287530B (en) | The method of control upshift in vehicle transmission | |
| CN103967969A (en) | Dog clutch control apparatus for automated transmission | |
| CN112758079B (en) | Power upshift process control method for hybrid electric vehicle | |
| US8701516B2 (en) | Power transmission control apparatus for vehicle | |
| CN101730806B (en) | Automatic transmission | |
| US10279795B2 (en) | Control device | |
| EP2829773A2 (en) | Automated transmission control apparatus | |
| WO2015068474A1 (en) | Vehicular automatic transmission | |
| EP3051182B1 (en) | Management and control method of the gear change phases of a vehicle fitted with an automated manual transmission and transmission apparatus for vehicles fitted with automated manual transmission | |
| US9321448B2 (en) | Vehicle drive system | |
| CN111368422B (en) | Dog-tooth type clutch tooth feeding control method | |
| CN107269824B (en) | The speed-change control device of automatic transmission | |
| CN102648365A (en) | Method for controlling a semiautomatic gearbox for a hybrid or dual-clutch automobile | |
| WO2016159120A1 (en) | Control apparatus | |
| CN110816247A (en) | Hybrid power system and control method thereof | |
| CN110745132A (en) | Vehicle control device | |
| US11840237B2 (en) | Control device and method for controlling a vehicle powertrain to overcome, or avoid, a cog-to-cog condition, computer program, computer-readable medium and vehicle | |
| EP2843260A1 (en) | Automatic manual transmission | |
| EP2902237A1 (en) | Drive system for vehicle and controlling method thereof | |
| WO2019088901A1 (en) | A gearbox and a method for controlling a gearbox to achieve a freewheeling mode | |
| US20190078684A1 (en) | Method for checking the configuration safety of a coupling device | |
| JP2013035404A (en) | Hybrid vehicle and method for controlling the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |