CN115045996A - High-precision control method applied to electromagnetic valve of automobile transmission - Google Patents
High-precision control method applied to electromagnetic valve of automobile transmission Download PDFInfo
- Publication number
- CN115045996A CN115045996A CN202210561491.1A CN202210561491A CN115045996A CN 115045996 A CN115045996 A CN 115045996A CN 202210561491 A CN202210561491 A CN 202210561491A CN 115045996 A CN115045996 A CN 115045996A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- current
- value
- control method
- flow
- 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.)
- Pending
Links
Images
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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
-
- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0437—Smoothing ratio shift by using electrical signals
-
- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/2807—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
A high-precision control method applied to an electromagnetic valve of an automobile transmission relates to the technical field of automobile transmission control and is used for solving the technical problems of gear shifting power interruption, large gear shifting impact, large whole box dragging loss, low efficiency, high-temperature ablation of a gear shifting element and high-temperature alarm of the transmission in the prior art. In the high-precision control method applied to the electromagnetic valve of the automobile transmission, a basic current value obtained by checking a basic current Map table according to target control pressure and flow requirements; comprehensively considering factors of temperature, rotating speed, torque, system pressure and system flow, and determining a current compensation value, namely a current bias value of the electromagnetic valve according to test experience; and superposing the current bias value of the electromagnetic valve and the basic current value, and jointly controlling the action of the electromagnetic valve to achieve the purpose of accurately controlling the output actual pressure or flow.
Description
Technical Field
The invention relates to the technical field of automobile transmission control, in particular to a high-precision control method applied to an electromagnetic valve of an automobile transmission.
Background
Currently, in the prior art, the solenoid valve control method of the automobile transmission is generally as follows:
A. the electromagnetic valve basic current Map is a current data table obtained according to single electromagnetic valve test data or electromagnetic valve test data in a gearbox system, a hydraulic control system of the transmission queries a current value in the basic current Map data according to target control pressure and flow requirements of a whole box control system to control the action of the electromagnetic valve, and the actual pressure and flow are controlled;
B. the solenoid valve basic current Map is a current data table obtained according to single solenoid valve test data or solenoid valve test data in a gearbox system, and the transmission hydraulic control system inquires a current value in the basic current Map data according to target control pressure and flow requirements of the whole box control system and then considers compensation current caused by temperature, namely the solenoid valve current offset values are superposed to control the solenoid valve action and control actual pressure and flow.
Disclosure of Invention
The invention aims to provide a high-precision control method applied to an electromagnetic valve of an automobile transmission, which is used for solving the technical problems of gear shifting power interruption, large gear shifting impact, large whole box dragging loss, low efficiency, high-temperature ablation of a gear shifting element and high-temperature alarm of the transmission in the prior art in the aspect of automobile transmission control.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-precision control method applied to an electromagnetic valve of an automobile transmission comprises the following steps:
checking a basic current value obtained by a basic current Map table according to target control pressure and flow requirements;
comprehensively considering factors of temperature, rotating speed, torque, system pressure and system flow, and determining a current compensation value, namely a current bias value of the electromagnetic valve according to test experience;
the current bias value of the electromagnetic valve is superposed with the basic current value, and the current bias value and the basic current value together control the action of the electromagnetic valve so as to realize the purpose of accurately controlling and outputting the actual pressure or flow.
Wherein, the temperature signal corresponds to the first current compensation value.
Wherein, the rotation speed signal corresponds to the second current compensation value.
Wherein the torque signal corresponds to the third current compensation value.
Wherein the system pressure signal corresponds to the fourth current compensation value.
Wherein, the system flow signal corresponds to a fifth current compensation value.
Compared with the prior art, the high-precision control method applied to the electromagnetic valve of the automobile transmission has the following advantages:
in the high-precision control method applied to the electromagnetic valve of the automobile transmission, the electromagnetic valve basic current Map is a current data table obtained according to single electromagnetic valve test data or electromagnetic valve test data in a transmission system, the transmission hydraulic control system inquires the current value in the basic current Map data according to the target control pressure and flow demand of the whole box control system, and then controls the electromagnetic valve action by considering the compensation current caused by temperature, rotating speed, torque, system pressure and system flow, namely the electromagnetic valve current offset value is superposed, and the actual pressure and flow are controlled, namely the electromagnetic valve pressure or flow deviation caused by comprehensive factors is considered in the electromagnetic valve control mode, so that the control method is more precise and has extremely high control precision.
Drawings
Fig. 1 is a schematic frame structure diagram of a high-precision control method applied to an electromagnetic valve of an automobile transmission according to an embodiment of the invention.
Detailed Description
For the convenience of understanding, the following detailed description is made on a high-precision control method applied to an electromagnetic valve of an automobile transmission provided by the embodiment of the invention in combination with the attached drawings of the specification.
The embodiment of the invention provides a high-precision control method applied to an electromagnetic valve of an automobile transmission, which comprises the following steps as shown in figure 1:
checking a basic current value obtained by a basic current Map table according to target control pressure and flow requirements;
comprehensively considering factors of temperature, rotating speed, torque, system pressure and system flow, and determining a current compensation value, namely a current bias value of the electromagnetic valve according to test experience;
and superposing the current bias value of the electromagnetic valve and the basic current value, and jointly controlling the action of the electromagnetic valve to achieve the purpose of accurately controlling the output actual pressure or flow.
Compared with the prior art, the high-precision control method applied to the electromagnetic valve of the automobile transmission has the following advantages that:
in the high-precision control method applied to the electromagnetic valve of the automobile transmission, provided by the embodiment of the invention, the electromagnetic valve basic current Map is a current data table obtained according to single electromagnetic valve test data or electromagnetic valve test data in a transmission system, and the transmission hydraulic control system inquires the current value in the basic current Map data according to the target control pressure and flow demand of the whole box control system, and then controls the electromagnetic valve action by considering the compensation current caused by temperature, rotating speed, torque, system pressure and system flow, namely the electromagnetic valve current offset value is superposed, and controls the actual pressure and flow, namely the electromagnetic valve pressure or flow deviation caused by comprehensive factors is considered in the electromagnetic valve control mode, so that the control method is more precise and has extremely high control precision.
Wherein, the temperature signal corresponds to the first current compensation value. The temperature has a large influence on the gearbox, for example, the temperature influences the viscosity of oil, and the viscosity of the oil has a large influence on the pressure control of the electromagnetic valve; in terms of flow control, the higher the temperature the greater the flow demand, the lower the temperature, the greater the drag torque, and the lower the flow demand, requiring fine compensation control.
Wherein, the rotation speed signal corresponds to the second current compensation value. When the input rotating speed is low, the system flow is small, the pressure is insufficient, the pressure fluctuation of the electromagnetic valve control is large, and fine compensation control is needed.
Wherein the torque signal corresponds to the third current compensation value. Fine compensation control is required when input torque is low due to low demand pressure and flow.
Wherein the system pressure signal corresponds to the fourth current compensation value. Under different system pressures, the control current values of the electromagnetic valves are different when the same pressure or flow target value is required, and the control precision of the electromagnetic valves can be improved only by fine compensation control.
And the system flow signal corresponds to a fifth current compensation value. Under different system flow rates, when the same pressure or flow target value is required, the control current values of the electromagnetic valves are different, and the control precision of the electromagnetic valves can be improved only by fine compensation control.
In summary, the high-precision control method applied to the electromagnetic valve of the automobile transmission provided by the embodiment of the invention mainly has the following advantages:
firstly, the control precision is high:
the electromagnetic valve basic current Map is a current data table obtained according to single electromagnetic valve test data or electromagnetic valve test data in a gearbox system, a hydraulic control system of the transmission inquires a current value in the basic current Map data according to target control pressure and flow requirements of a whole box control system and then considers compensation current caused by temperature, rotating speed, torque, system pressure and system flow, namely electromagnetic valve current offset values are superposed to control the action of the electromagnetic valve, and the actual pressure and flow are controlled;
secondly, the system loss is small, and the efficiency is high:
because the flow can be finely controlled, the lubricating flow of parts such as a clutch, a hydraulic rheostat and the like can be properly controlled as required in time, and meanwhile, factors caused by temperature can be compatible, so that the system dragging loss is effectively reduced, and the efficiency is improved;
thirdly, the reliability of parts is high:
because the flow can be finely controlled, the lubricating flow of parts such as a clutch, a hydraulic rheostat and the like can be properly controlled in time according to needs, so that the abrasion loss can be effectively reduced, and the reliability of the parts is improved;
fourthly, the comfort of the whole vehicle is high:
because can realize the big meticulous control of pressure, consider the influence of temperature, rotational speed, moment of torsion, system pressure, system flow to spare parts such as clutch, hydraulic rheostat when starting, shifting to can effectively promote whole car responsiveness, avoid power interruption, shift impact scheduling problem, and then promote the travelling comfort that whole car was driven.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. A high-precision control method applied to an electromagnetic valve of an automobile transmission is characterized by comprising the following steps:
checking a basic current value obtained by a basic current Map table according to target control pressure and flow requirements;
comprehensively considering factors of temperature, rotating speed, torque, system pressure and system flow, and determining a current compensation value, namely a current bias value of the electromagnetic valve according to test experience;
the current bias value of the electromagnetic valve is superposed with the basic current value, and the current bias value and the basic current value together control the action of the electromagnetic valve so as to realize the purpose of accurately controlling and outputting the actual pressure or flow.
2. A high accuracy control method for a solenoid valve of an automotive transmission as described in claim 1 wherein said temperature signal corresponds to said first current offset value.
3. A high accuracy control method for a solenoid valve of an automotive transmission as described in claim 1 wherein said rotation speed signal corresponds to said second current offset value.
4. The method of claim 1, wherein the torque signal corresponds to a third current compensation value.
5. A high accuracy control method for a solenoid valve of an automotive transmission as described in claim 1 wherein said system pressure signal corresponds to said fourth current offset value.
6. A high accuracy control method for solenoid valves used in automotive transmissions as claimed in claim 1 wherein the system flow signal corresponds to a fifth current offset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210561491.1A CN115045996A (en) | 2022-05-23 | 2022-05-23 | High-precision control method applied to electromagnetic valve of automobile transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210561491.1A CN115045996A (en) | 2022-05-23 | 2022-05-23 | High-precision control method applied to electromagnetic valve of automobile transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115045996A true CN115045996A (en) | 2022-09-13 |
Family
ID=83158921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210561491.1A Pending CN115045996A (en) | 2022-05-23 | 2022-05-23 | High-precision control method applied to electromagnetic valve of automobile transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115045996A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854021A (en) * | 2022-12-13 | 2023-03-28 | 中国第一汽车股份有限公司 | Control method and device for hydraulic system solenoid valve, vehicle and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0450550A (en) * | 1990-06-18 | 1992-02-19 | Aisin Aw Co Ltd | Solenoid drive circuit for automatic transmission |
| CN105179671A (en) * | 2015-09-14 | 2015-12-23 | 中国北方车辆研究所 | Method for achieving temperature compensation of proportional electromagnetic valve based on constant-current control |
| CN105673837A (en) * | 2016-04-14 | 2016-06-15 | 安徽江淮汽车股份有限公司 | Method and system for controlling electromagnetic valves of double-clutch automatic transmission |
| CN107120427A (en) * | 2017-05-08 | 2017-09-01 | 安徽江淮汽车集团股份有限公司 | The control method and system of hydraulic shift actuator |
| CN107339418A (en) * | 2016-12-20 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | A kind of magnetic valve compensating control method and system |
-
2022
- 2022-05-23 CN CN202210561491.1A patent/CN115045996A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0450550A (en) * | 1990-06-18 | 1992-02-19 | Aisin Aw Co Ltd | Solenoid drive circuit for automatic transmission |
| CN105179671A (en) * | 2015-09-14 | 2015-12-23 | 中国北方车辆研究所 | Method for achieving temperature compensation of proportional electromagnetic valve based on constant-current control |
| CN105673837A (en) * | 2016-04-14 | 2016-06-15 | 安徽江淮汽车股份有限公司 | Method and system for controlling electromagnetic valves of double-clutch automatic transmission |
| CN107339418A (en) * | 2016-12-20 | 2017-11-10 | 安徽江淮汽车集团股份有限公司 | A kind of magnetic valve compensating control method and system |
| CN107120427A (en) * | 2017-05-08 | 2017-09-01 | 安徽江淮汽车集团股份有限公司 | The control method and system of hydraulic shift actuator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854021A (en) * | 2022-12-13 | 2023-03-28 | 中国第一汽车股份有限公司 | Control method and device for hydraulic system solenoid valve, vehicle and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103836183B (en) | For having the method for the power transmission system of speed changer and clutch | |
| CN102287530B (en) | The method of control upshift in vehicle transmission | |
| CN104279319B (en) | The oil pump systems of motor vehicle driven by mixed power and the method for controlling the oil pump systems | |
| CN102639895B (en) | Method for quickly filling a hydraulically actuated multiple disc shifting element of a motor vehicle transmission | |
| CN102535573B (en) | Intelligent automatic speed change control system for loading machine and control method for intelligent automatic speed change control system | |
| CN103244663B (en) | A kind of method of controlling wet dual clutch transmission gear joint | |
| CN104132082A (en) | Method of controlling transmission friction element by using adaptive transfer function | |
| CN111746494B (en) | Self-learning-based dry-type double-clutch torque transmission characteristic optimization method | |
| CN115045996A (en) | High-precision control method applied to electromagnetic valve of automobile transmission | |
| Meng et al. | Smooth shift control of an automatic transmission for heavy-duty vehicles | |
| CN104235344A (en) | Adaptive control of a flow control solenoid | |
| CN101008446B (en) | Electrohydraulic control system and method for controlling joint of torque transmitting mechanism | |
| CN102410365A (en) | Gear shifting and protection control strategy of wet clutch for continuously variable transmission | |
| JPS63212137A (en) | Speed change controller for speed change gear | |
| CN103883642A (en) | Control method and device for clutch oil pressure | |
| CN112049928A (en) | Bulldozer and electronic control gear shifting control method and device thereof | |
| CN103912674A (en) | Upshift control of a dry dual-clutch transmission | |
| CN107000713B (en) | Dynamic current compensation | |
| US9488267B2 (en) | Line pressure control with input shaft torque measurement | |
| CN102818007A (en) | Active damping tip-in clutch control of a vehicle transmission | |
| US20150120154A1 (en) | Speed change control system for vehicles | |
| CN103307266A (en) | Transmissioin clutch return spring pressure learn using pid control | |
| CN108895095B (en) | Pressure compensation control system of electro-hydraulic module | |
| CN104813056A (en) | Method and apparatus for clutch pressure control | |
| CN104279320A (en) | Gear-shifting control system of hydraulic automatic transmission |
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 |