CN109944885A - A kind of vehicle starting clutch Half engagement point self-learning method - Google Patents
A kind of vehicle starting clutch Half engagement point self-learning method Download PDFInfo
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- CN109944885A CN109944885A CN201910204629.0A CN201910204629A CN109944885A CN 109944885 A CN109944885 A CN 109944885A CN 201910204629 A CN201910204629 A CN 201910204629A CN 109944885 A CN109944885 A CN 109944885A
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- engagement point
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a kind of vehicle starting clutch Half engagement point self-learning methods, including adjustable controller, the fluid drive vehicle equipped with a shaft speed transducer and engine speed sensor, specific step is as follows: S1: so that vehicle is in clutch separation, engine idling, the state of transmission neutral, issues self-studying mode and execute order；S2: clutch Half engagement point is quickly engaged clutch to initial estimated Half engagement point；S3: by clutch quick separating, after waiting input shaft rotating speed to be reduced to zero, repeat the process of step S1 to step S2, the average value for acquiring clutch Half engagement point position is Half engagement point position, start clutch Half engagement point position self-learning method of the present invention for fluid drive automobile has the speed of service fast, the accurate feature of result is obtained, not only can guarantee clutch performance but also driving experience that energy band is good to driver.
Description
Technical field
The invention belongs to technical field of automobile control, and in particular to a kind of vehicle starting clutch Half engagement point self study side
Method.
Background technique
In ideal control system, it is believed that the factors such as all parts, parameter of control system are fixed and invariable,
As long as therefore designing reliable and stable control of the control algolithm energy conservation realization to control target according to these control object characteristics.And
In actual engineer application field, to the design of control algolithm need to consider large-tonnage product in terms of have subtle difference
Different, these differences cause certain control parameters of control algolithm variant；And same a product can go out in use
It now wears, generates variation so as to cause its relevant parameter after a period of use.This requires the corresponding controls of control algolithm to join
Number carries out adaptivity variation.For example re-scale that parameter cost is too high and inconvenient consumer uses after a period of use.
Therefore the self-learning algorithm after studying the initial self-learning algorithm of control parameter and Parameters variation in the controls just has great
Meaning.
During clutch control, clutch Half engagement point position is a very important control parameter, to clutch
The performance of device process control has important influence；Therefore, there is great engineering practice to the self-learning algorithm of this position
Meaning.What clutch self character and its engaging process feature were realized is identified by clutch Half engagement point, therefore is calculated
Method needs that vehicle is made to run to the operating condition that can embody clutch Half engagement point feature, is then known according to the signal characteristic under the operating condition
Not Chu Half engagement point position.
Vehicle control system is just to have overcome vehicle resistance position judgment criteria to learn by oneself according to the torque of clutch transmitting at present
Practise clutch Half engagement point position, need time at least 30 seconds of this method, and self study is to clutch Half engagement point
When position, due to needing the torque transmitted using clutch just the vehicle moment of resistance can have been overcome as judgment criteria, algorithm is being executed
When vehicle have stationary state and become motion state, driver has impact sense, is in driver in one hazardous environment.
Summary of the invention
The purpose of the present invention is to provide a kind of vehicle starting clutch Half engagement point self-learning methods, in objects such as friction plates
Reason mechanism is when wear, clutch actuator can with adjust automatically clutch position, to guarantee normal vehicle operation, with
It solves to propose the problems of the prior art in above-mentioned background technique.
To achieve the above object, present invention employs following technical solutions: a kind of vehicle starting clutch Half engagement point from
Learning method, including adjustable controller, the fluid drive vehicle equipped with a shaft speed transducer and engine speed sensor, tool
Steps are as follows for body:
S1: making vehicle be in clutch separation, engine idling, the state of transmission neutral, issues self-studying mode and executes life
It enables；
S2: clutch Half engagement point, steps are as follows for tool:
A: clutch is quickly engaged to initial estimated Half engagement point；
B: if input shaft rotating speed is greater than zero after clutch reaches estimated Half engagement point, on the basis of former estimated Half engagement point position
On subtract step-length, new estimated Half engagement point position is obtained, until certain reaches estimated Half engagement point position in clutch position
Input shaft rotating speed is not more than zero when setting；
C: engaging clutch with jogging speed, until input shaft rotating speed and engine speed difference are less than 15r/min, clutch at this time
And playing position is exactly the clutch Half engagement point position that self study is arrived；
S3: by clutch quick separating, after waiting input shaft rotating speed to be reduced to zero, step S1 is repeated to the process of step S2, is acquired
The average value of clutch Half engagement point position is Half engagement point position.
Preferably, a shaft speed transducer and engine speed sensor are digital speed probe.
Preferably, the engine speed range is 750-900r/min.
Preferably, initially estimated Half engagement point is when going clutch not engage at estimated Half engagement point in the step S2
One position.
A kind of technical effect and advantage of the invention: vehicle starting clutch Half engagement point self study side proposed by the present invention
Method has the advantage that compared with prior art
1, the start clutch Half engagement point position self-learning method of the present invention for fluid drive automobile has operation
Speed is fast, obtains the accurate feature of result, not only can guarantee clutch performance but also driving experience that energy band is good to driver.
Detailed description of the invention
Fig. 1 is a kind of vehicle starting clutch Half engagement point self-learning method flow chart of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Herein
Described specific embodiment is only used to explain the present invention, is not intended to limit the present invention.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
Referring to Fig. 1, the present invention provides a kind of vehicle starting clutch Half engagement point self-learning method, including it is controllable
Device processed, the fluid drive vehicle equipped with a shaft speed transducer and engine speed sensor, the specific steps are as follows:
S1: making vehicle be in clutch separation, engine idling, the state of transmission neutral, issues self-studying mode and executes life
It enables；
S2: clutch Half engagement point, steps are as follows for tool:
A: clutch is quickly engaged to initial estimated Half engagement point；
B: if input shaft rotating speed is greater than zero after clutch reaches estimated Half engagement point, on the basis of former estimated Half engagement point position
On subtract step-length, new estimated Half engagement point position is obtained, until certain reaches estimated Half engagement point position in clutch position
Input shaft rotating speed is not more than zero when setting；
C: engaging clutch with jogging speed, until input shaft rotating speed and engine speed difference are less than 15r/min, clutch at this time
And playing position is exactly the clutch Half engagement point position that self study is arrived；
S3: by clutch quick separating, after waiting input shaft rotating speed to be reduced to zero, step S1 is repeated to the process of step S2, is acquired
The average value of clutch Half engagement point position is Half engagement point position.
Specifically, a shaft speed transducer and engine speed sensor are digital speed probe.
Specifically, the engine speed range is 750-900r/min.
Specifically, initially estimated Half engagement point is when going clutch not engage at estimated Half engagement point in the step S2
One position.
In summary: after self-studying mode of the present invention starts execution, if engine peed stable in idling, neutral gear simultaneously
And in the state of engine idling, clutch, which is shown, is joined to setting position rapidly, if an axis revolving speed is not more than zero at this time, from
Clutch is slowly moved to full engagement position again, and engine speed is basically unchanged in the process, and an axis revolving speed is begun to ramp up, if one
Axis revolving speed and engine speed are almost the same, then clutch position at this time is Half engagement point position.
It is of the present invention to be used for fluid drive vehicle starting clutch Half engagement point self-learning method, it is complete in vehicle
The position self study of start clutch Half engagement point is carried out in the state of static, it is highly-safe.Entire self study process is in 2 seconds
It completes, speed is faster compared to previous self-learning method.Multiple operation is averaged, and ensure that the accuracy of Half engagement point position,
Effectively improve the performance of clutch.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of vehicle starting clutch Half engagement point self-learning method, it is characterised in that: including adjustable controller, an axis is housed
The fluid drive vehicle of speed probe and engine speed sensor, the specific steps are as follows:
S1: making vehicle be in clutch separation, engine idling, the state of transmission neutral, issues self-studying mode and executes life
It enables；
S2: clutch Half engagement point, steps are as follows for tool:
A: clutch is quickly engaged to initial estimated Half engagement point；
B: if input shaft rotating speed is greater than zero after clutch reaches estimated Half engagement point, on the basis of former estimated Half engagement point position
On subtract step-length, new estimated Half engagement point position is obtained, until certain reaches estimated Half engagement point position in clutch position
Input shaft rotating speed is not more than zero when setting；
C: engaging clutch with jogging speed, until input shaft rotating speed and engine speed difference are less than 15r/min, clutch at this time
And playing position is exactly the clutch Half engagement point position that self study is arrived；
S3: by clutch quick separating, after waiting input shaft rotating speed to be reduced to zero, step S1 is repeated to the process of step S2, is acquired
The average value of clutch Half engagement point position is Half engagement point position.
2. a kind of vehicle starting clutch Half engagement point self-learning method according to claim 1, it is characterised in that: described
One shaft speed transducer and engine speed sensor are digital speed probe.
3. a kind of vehicle starting clutch Half engagement point self-learning method according to claim 1, it is characterised in that: described
Engine speed range is 750-900r/min.
4. a kind of vehicle starting clutch Half engagement point self-learning method according to claim 1, it is characterised in that: described
Initially estimated Half engagement point is position when going clutch not engage at estimated Half engagement point in step S2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910204629.0A CN109944885A (en) | 2019-03-18 | 2019-03-18 | A kind of vehicle starting clutch Half engagement point self-learning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910204629.0A CN109944885A (en) | 2019-03-18 | 2019-03-18 | A kind of vehicle starting clutch Half engagement point self-learning method |
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| CN109944885A true CN109944885A (en) | 2019-06-28 |
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| CN201910204629.0A Pending CN109944885A (en) | 2019-03-18 | 2019-03-18 | A kind of vehicle starting clutch Half engagement point self-learning method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979297A (en) * | 2019-12-19 | 2020-04-10 | 盛瑞传动股份有限公司 | Automatic clutch control method under automobile idling working condition and automobile |
| CN111677783A (en) * | 2020-05-08 | 2020-09-18 | 中国北方车辆研究所 | Calibration method for initial position parameter threshold of clutch sliding friction point |
| CN112594378A (en) * | 2020-12-29 | 2021-04-02 | 潍柴动力股份有限公司 | Self-learning method for clutch half-joint point, vehicle control method and vehicle |
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| CN105667514A (en) * | 2016-04-14 | 2016-06-15 | 安徽江淮汽车股份有限公司 | Kisspoint self-adaptation control method and system for peristaltic working condition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979297A (en) * | 2019-12-19 | 2020-04-10 | 盛瑞传动股份有限公司 | Automatic clutch control method under automobile idling working condition and automobile |
| CN111677783A (en) * | 2020-05-08 | 2020-09-18 | 中国北方车辆研究所 | Calibration method for initial position parameter threshold of clutch sliding friction point |
| CN112594378A (en) * | 2020-12-29 | 2021-04-02 | 潍柴动力股份有限公司 | Self-learning method for clutch half-joint point, vehicle control method and vehicle |
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Application publication date: 20190628 |
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