CN105422840A - AMT gear shifting control method and system with gear shifting displacement tracking compensation function - Google Patents
AMT gear shifting control method and system with gear shifting displacement tracking compensation function Download PDFInfo
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- CN105422840A CN105422840A CN201610014155.XA CN201610014155A CN105422840A CN 105422840 A CN105422840 A CN 105422840A CN 201610014155 A CN201610014155 A CN 201610014155A CN 105422840 A CN105422840 A CN 105422840A
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- Prior art keywords
- gear shifting
- displacement
- signal
- control method
- compensation
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- 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
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- 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
- F16H61/0204—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 for gearshift control, e.g. control functions for performing shifting or generation of shift signal
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- 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
- F16H2306/00—Shifting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses an AMT gear shifting control method and system with the gear shifting displacement tracking compensation function. The method and system involve a gear shifting fork rigidity compensating strategy, a vehicle speed signal, an engine rotating speed signal, a throttle valve opening degree signal, a gear shifting driving device, a gear shifting executing mechanism, a displacement sensor, a force sensor, a TCU and a speed changer transmission mechanism. The TCU receives the vehicle speed signal, the engine rotating speed signal and the throttle valve opening degree signal and controls gear shifting. Meanwhile, according to the gear shifting fork rigidity compensating strategy, a displacement signal acquired by the displacement sensor and a force signal acquired by the force sensor, deformation compensation is performed on a gear shifting fork, and accurate control over the gear shifting process is achieved. The AMT gear shifting control method and system with the gear shifting displacement tracking compensation function are applicable to the technical field of automobiles, particularly when a full-electric type automatic speed changer high in responding speed is applied to an automobile transmission system, a better system integration effect is achieved, gear shifting precision is improved, and therefore the automobile gear shifting quality can be improved to a large extent.
Description
Technical field
The present invention relates to technical field of vehicle control, more particularly, relate to AMT shift control method and system that compensation is followed in a kind of displacement of shifting gears.
Background technique
Economic sustained and rapid development makes the problem such as energy scarcity and environmental pollution become increasingly conspicuous, and accelerates cultivate and develop the grand strategy behave that efficient new auto technology is automobile industry.The Effec-tive Function of automotive powerplant is one of energy saving and the main solution route reducing discharge, the AMT shift control method of compensation is followed in a kind of displacement of shifting gears and system is the impact considering that the distortion exchange gear of selector fork moves, make control strategy of more reasonably shifting gears, reduce shift shock, improve shift quality.
Along with the development of electronic technology and the rapid advances of modern control theory and application, all electric AMT becomes a focus of automatic transmission exploitation, and partial automobile enterprise both domestic and external and related scientific research unit have done a large amount of research work to all electric AMT; In formulation gearshift control strategy, domestic and international research institution and experts and scholars have done a large amount of work, and achieve a series of achievement in research, dynamic three parameter schedules and clutch are formulated in conjunction with rule, propose speed changer, motor and clutch in conjunction with rule, and to put into gear process controller etc. based on the series connection of fuzzy algorithmic approach, above research well facilitates the raising of AMT shift quality, but still the space that has a certain upgrade.
In shift process, the displacement of clutch collar is actual gearshift displacement, and the displacement signal that displacement transducer collects is the displacement at selector fork axis hole place, and can not reflect actual gearshift displacement, this will affect the gearshift control accuracy of AMT, produces shift shock.In order to improve the gearshift control accuracy of AMT, reduce shift shock, inventor proposes a kind of AMT shift control method and system of following compensation based on gearshift displacement, the distortion that selector fork produces because of stressed is considered in the process of vehicle shift, and the amount of deformation of selector fork is incorporated in the control system of gearshift drive unit as compensation rate, TCU is according to selector fork rigidity compensation strategy, obtain more accurate gearshift displacement, control shift process, and then the control accuracy of AMT can be promoted, reduce shift shock, improve shift quality.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention proposes a kind of gearshift displacement and follows compensation AMT shift control method and system, object is, consider that in shift process, selector fork distortion will affect the gearshift control accuracy of AMT, cause occurring the problems such as the increase of gearshift probability of failure and shift shock increase, by to the stiffness analysis of selector fork and experimental research, the strategy that compensation is followed in gearshift displacement is proposed, gearshift drive unit control accuracy can be promoted, realize accurately controlling in real time of shift process, improve shift quality.
For solving the problems of the technologies described above, present invention employs gearshift displacement and following the method for compensation, TCU is according to selector fork rigidity compensation strategy, and controlling gear shifting actuating mechanism by gearshift drive unit, to carry out selector fork deformation-compensated, realizes accurately controlling.
AMT shift control method and the system of compensation are followed in gearshift displacement of the present invention, on the basis considering AMT process for gear, take into account selector fork distortion to the impact of gearshift precision, introduce the strategy that selector fork is deformation-compensated, after displacement transducer collects the displacement signal at selector fork axis hole place, TCU is according to selector fork rigidity compensation strategy, revise displacement signal, thus obtain actual gearshift displacement, gearshift control accuracy can be improved, reduce shift shock, improve shift quality.
The AMT shift control method of compensation is followed in a kind of displacement of shifting gears of the present invention and system is applicable to automobile technical field, particularly during using vehicle art drive systems field, more accurate system intergration control effects will be obtained, gearshift control accuracy can be improved largely, improve gearshift success rate, the shift quality of lifting vehicle; And established good theoretical foundation for applying of directly driving type AMT with the accurate control of intelligent automobile.Gearshift displacement of the present invention will bring larger economic benefit after following the AMT shift control method of compensation and system industryization application.
Accompanying drawing explanation
Fig. 1 is AMT shift control method and the system diagram that compensation is followed in gearshift displacement of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, AMT shift control method and the system of compensation are followed in a kind of displacement of shifting gears that the present invention proposes, it comprises: selector fork rigidity compensation strategy (1), vehicle speed signal (2), engine rotational speed signal (3), throttle opening amount signal (4), gearshift drive unit (5), gear shifting actuating mechanism (6), displacement transducer (7), force snesor (8), and gearing actuator (10) TCU(9), wherein: the TCU(9 storing described selector fork rigidity compensation strategy (1)) receive vehicle speed signal (2), engine rotational speed signal (3), throttle opening amount signal (4), after the displacement signal that displacement transducer (7) gathers and the force signal that force snesor (8) gathers, TCU(9) revise according to selector fork rigidity compensation strategy (1) displacement signal that displacement transducer (7) gathers in real time, described gearshift drive unit (5) drives gear shifting actuating mechanism (6), institute's displacement sensors (7) is placed on the declutch shift shaft of gear shifting actuating mechanism (6), described force snesor (8) is placed in the output shaft end of gearshift drive unit.
Present invention further optimization scheme is.
Described selector fork rigidity compensation strategy (1) is by carrying out finite element analysis to selector fork and experiment obtains.
Described vehicle speed signal (2) is collected by vehicle speed sensor, and described engine rotational speed signal is collected by speed probe by (3), and described throttle opening amount signal (4) is collected by engine load sensor.
Described gear shifting actuating mechanism (6) comprises shift lever, gearshift shifting block, selector fork axle and selector fork, and described gear shifting actuating mechanism (6) is connected with gearing actuator (10).
Described gearshift drive unit (5) is moving coil type electromagnetic final controlling element.
AMT shift control method and the system of compensation are followed in a kind of displacement of shifting gears of the present invention, as shown in Figure 1, TCU(9) according to vehicle speed signal (2), engine rotational speed signal (3) and throttle opening amount signal (4), make gearshift decision-making; Displacement transducer (7) is placed on the selector fork axle of gear shifting actuating mechanism, and force snesor (8) is placed in the output shaft end of gearshift drive unit (5); The axial force signal of the gearshift drive unit (5) that the displacement signal at the selector fork axis hole place that displacement transducer (7) gathers and force snesor (8) gather is as feedback signal, feed back to TCU(9), TCU(9) according to selector fork rigidity compensation strategy (1), the displacement signal that corrected received arrives, controls gearshift drive unit (5) and drives gear shifting actuating mechanism (6) realization gearshift displacement to follow compensation.AMT shift control method and the system of compensation are followed in a kind of displacement of shifting gears of the present invention, consider the impact of selector fork rigidity on clutch collar actual displacement, have employed the strategy that compensation is followed in selector fork displacement, the displacement of clutch collar in more accurate shift process can be obtained, improve gearshift control accuracy to a great extent, improve gearshift success rate, reduce shift shock, the shift quality of AMT can be promoted, for applying of directly driving type AMT establishes good theoretical foundation.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. AMT shift control method and the system of compensation is followed in a displacement of shifting gears, it is characterized in that, comprise: selector fork rigidity compensation strategy (1), vehicle speed signal (2), engine rotational speed signal (3), throttle opening amount signal (4), gearshift drive unit (5), gear shifting actuating mechanism (6), displacement transducer (7), force snesor (8), and gearing actuator (10) TCU(9), wherein: the TCU(9 storing described selector fork rigidity compensation strategy (1)) receive vehicle speed signal (2), engine rotational speed signal (3), throttle opening amount signal (4), after the displacement signal that displacement transducer (7) gathers and the force signal that force snesor (8) gathers, TCU(9) revise according to selector fork rigidity compensation strategy (1) displacement signal that displacement transducer (7) gathers in real time, described gearshift drive unit (5) drives gear shifting actuating mechanism (6), institute's displacement sensors (7) is placed on the declutch shift shaft of gear shifting actuating mechanism (6), described force snesor (8) is placed in the output shaft end of gearshift drive unit.
2. AMT shift control method and the system of compensation is followed in a kind of displacement of shifting gears according to claim 1, it is characterized in that: described selector fork rigidity compensation strategy (1) is by carrying out finite element analysis to selector fork and experiment obtains.
3. AMT shift control method and the system of compensation is followed in a kind of displacement of shifting gears according to claim 1, it is characterized in that: described vehicle speed signal (2) is collected by vehicle speed sensor, described engine rotational speed signal (3) is collected by speed probe, and described throttle opening amount signal (4) is collected by engine load sensor.
4. AMT shift control method and the system of compensation is followed in a kind of displacement of shifting gears according to claim 1, it is characterized in that: described gear shifting actuating mechanism (6) comprises shift lever, gearshift shifting block, selector fork axle and selector fork; Described gear shifting actuating mechanism (6) is connected with gearing actuator (10).
5. AMT shift control method and the system of compensation is followed in a kind of displacement of shifting gears according to claim 1, it is characterized in that: described gearshift drive unit (5) is moving coil type electromagnetic final controlling element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610014155.XA CN105422840A (en) | 2016-01-11 | 2016-01-11 | AMT gear shifting control method and system with gear shifting displacement tracking compensation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610014155.XA CN105422840A (en) | 2016-01-11 | 2016-01-11 | AMT gear shifting control method and system with gear shifting displacement tracking compensation function |
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| CN105422840A true CN105422840A (en) | 2016-03-23 |
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| CN201610014155.XA Pending CN105422840A (en) | 2016-01-11 | 2016-01-11 | AMT gear shifting control method and system with gear shifting displacement tracking compensation function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443486A (en) * | 2018-03-28 | 2018-08-24 | 潍柴动力股份有限公司 | A kind of AMT drive ranges self-regulating method and device |
Citations (5)
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|---|---|---|---|---|
| US4852006A (en) * | 1988-04-18 | 1989-07-25 | Eaton Corporation | Amt off-highway downshift logic |
| CN201214409Y (en) * | 2008-05-22 | 2009-04-01 | 李润东 | Mechanical gearshift case automatic gear shift control system |
| CN201484285U (en) * | 2009-05-29 | 2010-05-26 | 柳光日 | Best shifting time reminder for manual transmission cars |
| CN102734458A (en) * | 2011-04-12 | 2012-10-17 | 辽宁华勋实业有限公司 | Energy-efficient full-automatic speed change system |
| CN203362900U (en) * | 2013-07-03 | 2013-12-25 | 李英杰 | Clutch automatic control system of manual transmission |
-
2016
- 2016-01-11 CN CN201610014155.XA patent/CN105422840A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4852006A (en) * | 1988-04-18 | 1989-07-25 | Eaton Corporation | Amt off-highway downshift logic |
| CN201214409Y (en) * | 2008-05-22 | 2009-04-01 | 李润东 | Mechanical gearshift case automatic gear shift control system |
| CN201484285U (en) * | 2009-05-29 | 2010-05-26 | 柳光日 | Best shifting time reminder for manual transmission cars |
| CN102734458A (en) * | 2011-04-12 | 2012-10-17 | 辽宁华勋实业有限公司 | Energy-efficient full-automatic speed change system |
| CN203362900U (en) * | 2013-07-03 | 2013-12-25 | 李英杰 | Clutch automatic control system of manual transmission |
Non-Patent Citations (1)
| Title |
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| 李波: "基于直驱技术的AMT换挡系统设计与性能设计", 《中国博士学位论文全文数据库 工程科技II辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443486A (en) * | 2018-03-28 | 2018-08-24 | 潍柴动力股份有限公司 | A kind of AMT drive ranges self-regulating method and device |
| CN108443486B (en) * | 2018-03-28 | 2020-03-10 | 潍柴动力股份有限公司 | AMT gear shifting position self-adjusting method and device |
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Application publication date: 20160323 |
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