CN105401822A - Anti-pinch method and system for electric side-sliding door - Google Patents
Anti-pinch method and system for electric side-sliding door Download PDFInfo
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- CN105401822A CN105401822A CN201511031992.5A CN201511031992A CN105401822A CN 105401822 A CN105401822 A CN 105401822A CN 201511031992 A CN201511031992 A CN 201511031992A CN 105401822 A CN105401822 A CN 105401822A
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/531—Doors
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Abstract
The invention discloses an anti-pinch method and a system for an electric side-sliding door. Through comparing the average current value of the current location section with a current reference value thereof to obtain a difference therebetween, an anti-pinch is sent out, or preparations are made for the anti-pinch judgment during the next location section. In this way, the opening/closing operation of the electric side-sliding door is detected each time. Meanwhile, the anti-pinch judgment is made for the specific condition in each location section. Therefore, the condition that the electric side-sliding door is inconformable with the anti-pinch condition due to the fact that the reference data of the electric side-sliding door are invariable along with the increased usage time of the electric side-sliding door, the time variation or the temperature variation of the electric side-sliding door can be avoided. Meanwhile, the condition that the anti-pinch effect has a large error due to the above fact can also be avoided.
Description
Technical field
The present invention relates to side sliding door field, particularly relate to a kind of electric side preventing slide door clamping method and system.
Background technology
At present, usually adopting the design of side sliding door for large-scale riding multipurpose MPV and miniature passenger-cargo carriage, is because the design of side sliding door is easy to park, as: can car door be opened without the need to reserving larger space in the left side of vehicle or right side; The design of side sliding door also facilitates the turnover of passenger, and conveniently assemble and disassemble goods.
Present electric side slide possesses detection of obstacles function, but anti-pinch poor effect, such as: along with the increase of side sliding door service time or the change of temperature, voltage etc., its anti-pinch effect there will be larger error.
Summary of the invention
In view of this, the invention provides a kind of electric side preventing slide door clamping method and system, to solve along with the increase of side sliding door service time or the change of temperature, voltage etc. in prior art, there is the problem compared with big error in its anti-pinch effect, its concrete scheme is as follows:
A kind of electric side preventing slide door clamping method, comprising:
Detection side slide switch operates in the average current value in interval, current location;
Obtain the current reference value in interval, precalculated described current location;
Difference between the average current value and the current reference value in interval, current location in interval, described current location is greater than first threshold, send anti-pinch instruction;
Difference between the average current value and its current reference value in interval, described current location is not more than first threshold, calculate the difference of the average current value between the average current value in interval, described current location and last lane place, as the first difference between current;
From the second difference between current group prestored, obtain the second difference between current between interval and last lane place, described current location, described second difference between current group comprises: the difference between current during side sliding door switch runs between interval and its last lane place, each position of historical storage;
The second difference between current in more described first difference between current and the second difference between current group between interval and last lane place, current location, obtains the current reference value in the next position interval according to comparative result.
Further, the second difference between current in described first difference between current and the second difference between current group between interval and last lane place, current location, obtains the current reference value in the next position interval, is specially according to comparative result:
Judge whether the absolute value of the difference between the second difference between current in described first difference between current and described second difference between current group between interval, current location and last lane place is less than Second Threshold;
If so, second difference between current in the next position interval and interval, current location in described second difference between current group is then obtained, and the average current value in interval, described current location;
The average current value in interval, described current location and described the next position the second difference between current that is interval and interval, current location is utilized to calculate the current reference value in described the next position interval.
Further, the second difference between current in described first difference between current and the second difference between current group between interval and last lane place, current location, obtains the current reference value in the next position interval, is specially according to comparative result:
Judge whether the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold;
If not, then obtain second difference between current in the next position interval and interval, current location in described second difference between current group, and the current reference value in interval, described current location;
The current reference value in interval, described current location and the next position the second difference between current that is interval and interval, current location is utilized to calculate the current reference value in described the next position interval.
Further, the described current reference value utilizing the current reference value in interval, described current location and the next position the second difference between current that is interval and interval, current location to calculate described the next position interval, is specially:
Whether the difference judging the second difference between current between interval and last lane place, current location in described first difference between current and the second difference between current group is negative;
If so, then by the current reference value in interval, described current location is added with second difference between current in interval, current location with described the next position interval with, do difference with described Second Threshold, calculate the current reference value in described the next position interval;
Otherwise, be added with second difference between current in interval, current location by the current reference value in interval, described current location and described the next position interval with, calculate the current reference value in described the next position interval.
Further, the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place, after obtaining the current reference value in the next position interval, also comprises according to comparative result:
Judge whether the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than the 3rd threshold value;
If so, then the second difference between current in described second difference between current group between interval, current location and last lane place is replaced with the first difference between current; Otherwise, the second difference between current in described second difference between current group between interval, current location and last lane place is replaced with described 3rd threshold value.
A kind of electric side preventing slide door clipping system, comprise: detecting unit, first acquiring unit, the first comparing unit be connected with described detecting unit and the first acquiring unit respectively, the computing unit be connected with described first comparing unit, second acquisition unit, the second comparing unit be connected with described computing unit and second acquisition unit respectively, wherein:
Described detecting unit is used for the average current value that detection side slide switch operates in interval, current location;
Described first acquiring unit is for obtaining the current reference value in interval, precalculated described current location;
Whether the difference that described first comparing unit is used between the average current value of more described current location and the current reference value in interval, current location is greater than first threshold; If so, anti-pinch instruction is then sent, otherwise, send computations;
Described computing unit calculates the difference of the average current value between the average current value in interval, described current location and last lane place, as the first difference between current according to described computations;
Described second acquisition unit is used for obtaining the second difference between current between interval and last lane place, described current location from the second difference between current group prestored, and described second difference between current group comprises: the difference between current during side sliding door switch runs between interval and its last lane place, each position of historical storage;
Described second comparing unit is used for the second difference between current in more described first difference between current and the second difference between current group between interval, current location and last lane place, obtains the current reference value in the next position interval according to comparative result.
Further, described second comparing unit specifically comprises: the first judgment sub-unit, and be connected with described first judgment sub-unit first obtains subelement, obtains with described first the first computation subunit that subelement is connected, wherein:
Described first judgment sub-unit is for judging whether the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold;
When described first acquisition subelement is for judging that in described first judgment sub-unit the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold, obtain second difference between current in the next position interval and interval, current location in described second difference between current group, and the average current value in interval, described current location;
The current reference value of described first computation subunit for utilizing the average current value in interval, described current location and described the next position the second difference between current that is interval and interval, current location to calculate described the next position interval.
Further, described second comparing unit also comprises: obtain with described first the second computation subunit that subelement is connected, wherein:
The current reference value of described second computation subunit for utilizing the current reference value in interval, described current location and the next position the second difference between current that is interval and interval, current location to calculate described the next position interval.
Further, described second computation subunit specifically for:
Whether the difference judging the second difference between current between interval and last lane place, current location in described first difference between current and the second difference between current group is negative;
If so, then by the current reference value in interval, described current location is added with second difference between current in interval, current location with described the next position interval with, do difference with described Second Threshold, calculate the current reference value in described the next position interval;
Otherwise, be added with second difference between current in interval, current location by the current reference value in interval, described current location and described the next position interval with, calculate the current reference value in described the next position interval.
Further, also comprise: the judging unit be connected with described second comparing unit, wherein:
Described judging unit is for judging whether the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than the 3rd threshold value; If so, then the second difference between current in described second difference between current group between interval, current location and last lane place is replaced with the first difference between current; Otherwise, the second difference between current in described second difference between current group between interval, current location and last lane place is replaced with described 3rd threshold value.
As can be seen from technique scheme, electric side preventing slide door clamping method disclosed in the present application and system, the average current value in interval, current location is operated in by detection side slide switch, obtain the current reference value in interval, precalculated current location, difference between the average current value and the current reference value in interval, current location in interval, current location is greater than first threshold, send anti-pinch instruction, otherwise, calculate the difference of the average current value between the average current value in interval, current location and last lane place, as the first difference between current, the second difference between current between interval, current location and last lane place is obtained from the second difference between current group prestored, second difference between current group comprises the difference between current between the interval, each position of historical storage in the operation of side sliding door switch and its last lane place, relatively the first difference between current and the second difference between current, the current reference value in the next position interval is obtained according to comparative result.This programme is by comparing the difference between the average current value in interval, current location and its current reference value, send anti-pinch instruction, or for the next position interval anti-pinch judge prepare, achieve and the switch running of side sliding door is each time detected, and carry out anti-pinch judgement according to the concrete situation between each lane place, avoid the change of increase along with side sliding door service time or temperature, voltage etc., its reference data is unalterable, not meeting anti-pinch present situation, there is the problem compared with big error in the anti-pinch effect caused.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The flow chart of Fig. 1 a kind of electric side preventing slide door clamping method disclosed in the embodiment of the present invention;
The flow chart of Fig. 2 a kind of electric side preventing slide door clamping method disclosed in the embodiment of the present invention;
The structural representation of Fig. 3 a kind of electric side preventing slide door clipping system disclosed in the embodiment of the present invention;
The structural representation of Fig. 4 a kind of second comparing unit disclosed in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention discloses a kind of electric side preventing slide door clamping method, its flow chart as shown in Figure 1, comprising:
Step S11, detection side slide switch operate in the average current value in interval, current location;
In this side sliding door switch running, the average current value in direct-detection each position interval.
Step S12, obtain the current reference value in interval, precalculated current location;
Step S13, difference between the average current value and the current reference value in interval, current location in interval, current location are greater than first threshold, send anti-pinch instruction;
Step S14, difference between the average current value and the current reference value in interval, current location in interval, current location are not more than first threshold, calculate the difference of the average current value between the average current value in interval, current location and last lane place, as the first difference between current;
Step S15, from the second difference between current group prestored, obtain the second difference between current between interval and last lane place, current location;
Second difference between current group comprises: the difference between current during side sliding door switch runs between interval and its last lane place, each position of historical storage.
Side sliding door is in the process from standard-sized sheet to complete shut-down and from complete shut-down to standard-sized sheet, electric current is change, can in side sliding door motion process, multistage is divided into according to hall position, namely by Hall element, whole motion process is equally divided into multistage, namely between multiple lane place, in side sliding door switching movements process, obtain average current when side sliding door arrives between each lane place, and calculate between each lane place and be positioned at the difference of the average current between the last lane place between this lane place, form the first difference between current group.
Such as: be that the second place is interval between the lane place of current detection, detecting the average current difference obtaining second place interval and primary importance interval in the operation of this side sliding door is the first difference between current; Now, the difference between current in second place interval and primary importance interval during the side sliding door before that extraction is preserved from the second difference between current group of storage runs, if before preserving, in side sliding door motion, the second place is interval is the second difference between current with the difference between current in primary importance interval, obtaining the difference between the first difference between current and the second difference between current, also can be the absolute value of the difference of acquisition first difference between current and the second difference between current.
After sending anti-pinch instruction, keep the difference between current in the second difference between current group between interval, current location and its last lane place constant.
Step S16, compare the second difference between current between interval and last lane place, current location in the first difference between current and the second difference between current group, obtain the current reference value in the next position interval according to comparative result.
Can obtain the current reference value in the next position interval according to the process of step S14 ~ S16, wherein, the current reference value in interval, current location can according to same Procedure Acquisition.
Further, after step S16, can also comprise:
Judge whether the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than the 3rd threshold value;
If so, then the second difference between current in the second difference between current group between interval, current location and last lane place is replaced with the first difference between current, otherwise, the second difference between current in the second difference between current group between interval, current location and last lane place is replaced with the 3rd threshold value.
Concrete, can also be: first judge whether the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is greater than the 4th threshold value, when the absolute value of this difference is not more than the 4th threshold value, change between the second difference between current then thinking between interval and last lane place, current location in the first difference between current and the second difference between current group is little, the second difference between current in the second difference between current group prestored between interval, current location and last lane place is not upgraded, the second difference between current in the second difference between current group of preserving before namely keeping between interval, current location and last lane place is constant,
The absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is greater than the 4th threshold value, and when being less than the 3rd threshold value, then the second difference between current in the second difference between current group between interval, current location and last lane place is replaced with the first difference between current, namely the renewal of data in the second difference between current group is realized, the second difference between current group is made to continue to keep last state in electric side slide switching process, to overcome electric side slide on-off times too much or the electric current that causes of the change of temperature etc., the change of voltage etc., reduce the error at every turn detecting the current reference value obtained,
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is greater than the 3rd threshold value, then think that this difference is excessive, the second difference between current in second difference between current group between interval, current location and last lane place is replaced by the 3rd threshold value, further, the renewal of this current differential after holding whole process, just can carry out storage update to pass or from pass from holding at electric side slide.
Electric side preventing slide door clamping method disclosed in the present embodiment, the average current value in interval, current location is operated in by detection side slide switch, obtain the current reference value in interval, precalculated current location, difference between the average current value and the current reference value in interval, current location in interval, current location is greater than first threshold, send anti-pinch instruction, otherwise, calculate the difference of the average current value between the average current value in interval, current location and last lane place, as the first difference between current, the second difference between current between interval, current location and last lane place is obtained from the second difference between current group prestored, second difference between current group comprises the difference between current between the interval, each position of historical storage in the operation of side sliding door switch and its last lane place, relatively the first difference between current and the second difference between current, the current reference value in the next position interval is obtained according to comparative result.This programme is by comparing the difference between the average current value in interval, current location and its current reference value, send anti-pinch instruction, or for the next position interval anti-pinch judge prepare, achieve and the switch running of side sliding door is each time detected, and carry out anti-pinch judgement according to the concrete situation between each lane place, avoid the change of increase along with side sliding door service time or temperature, voltage etc., its reference data is unalterable, not meeting anti-pinch present situation, there is the problem compared with big error in the anti-pinch effect caused.
Present embodiment discloses a kind of electric side preventing slide door clamping method, its flow chart as shown in Figure 2, comprising:
Step S21, detection side slide switch operate in the average current value in interval, current location;
Step S22, obtain the current reference value in interval, precalculated current location;
Step S23, difference between the average current value and the current reference value in interval, current location in interval, current location are greater than first threshold, send anti-pinch instruction;
Step S24, difference between the average current value and the current reference value in interval, current location in interval, current location are not more than first threshold, calculate the difference of the average current value between the average current value in interval, current location and last lane place, as the first difference between current;
Step S25, from the second difference between current group prestored, obtain the second difference between current between interval and last lane place, current location;
Second difference between current group comprises: the difference between current during side sliding door switch runs between interval and its last lane place, each position of historical storage.
Whether step S26, the absolute value judging between interval and last lane place, current location in the first difference between current and the second difference between current group between the second difference between current difference are less than Second Threshold;
Step S27, if so, then obtain interval the second difference between current with interval, current location of the next position in the second difference between current group, and the average current value in interval, current location;
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than first threshold, anti-pinch is there will not be in this lane place, when the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is greater than first threshold, it occurs the possibility of anti-pinch, now, pre-anti-pinch instruction can be sent, but not anti-pinch instruction.
When there will not be anti-pinch in interval, current location, just needing for judge whether that anti-pinch is prepared next time, namely calculating the current reference value in the next position interval.
And the current reference value in the next position interval is the second difference between current that is interval by the next position and interval, current location, and the reference current value in the average current value in interval, current location or interval, current location calculates.
Judging to calculate the reference current value in the next position interval is average current value by interval, current location or reference current value, be by the first difference between current and in the second difference between current group interval, current location obtain with comparing of Second Threshold with the absolute value of the difference between the second difference between current between last lane place.
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold, calculated the current reference value in the next position interval by the average current value in interval, current location; When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is not less than Second Threshold, calculated the current reference value in the next position interval by the current reference value in interval, current location.
Step S28, utilize the interval current reference value calculating the next position interval with second difference between current in interval, current location of the average current value in interval, current location and the next position.
Concrete, when the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold, calculating the current reference value in the next position interval can be: the average current value in interval, current location is added with second difference between current in interval, current location with the next position interval with, be the current reference value in the next position interval;
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is not less than Second Threshold, calculating the current reference value in the next position interval can be: the current reference value value in interval, current location is added with second difference between current in interval, current location with the next position interval with, be the current reference value in the next position interval.
Concrete, if interval, current location is between N lane place, then the next position interval is between N+1 lane place, current reference value between N+1 lane place is: the average current value between N lane place adds the difference between current in the second difference between current group of preserving in advance between N+1 lane place and between N lane place, obtain and.
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is not less than Second Threshold, and interval, current location is between N lane place, then the next position interval is between N+1 lane place, current reference value between N+1 lane place is: the current reference value between N lane place adds the difference between current in the second difference between current group of preserving in advance between N+1 lane place and between N lane place, obtain and.
Wherein, the account form of the current reference value between N lane place can be identical with the obtain manner of the current reference value between N+1 lane place.
In addition, when N is 2, the current reference value between the 2nd lane place is: the difference between current in the average current value in this electric side slide switching movements between the 1st lane place and the second difference between current group of preserving in advance between the 2nd lane place and between the 1st lane place and.
In addition, when the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is not less than Second Threshold, whether the difference that can also judge the second difference between current between interval and last lane place, current location in the first difference between current and the second difference between current group is negative, if this difference is negative, then by the current reference value in interval, current location and the next position interval is added with second difference between current in interval, current location with, do difference with Second Threshold, calculate the current reference value in the next position interval; When this difference is nonnegative number, be added with second difference between current in interval, current location by the current reference value in interval, current location and the next position interval with, calculate the current reference value in the next position interval.
Now illustrate:
Suppose, first difference between current is b'-a', the second difference between current in second difference between current group between interval, current location and last lane place is b-a, in second difference between current group, the next position is interval is c-b with second difference between current in interval, current location, first threshold is K1, and the second difference between current between interval, current location and last lane place and the value of the first difference between current are
r, then
r=(
b'
-a')
-(
b-a), suppose that the current reference value in interval, current location is I2, the current reference value in the next position interval is I3.
So, when | during r| > K1, I3=I2+ (c-b), it can also specifically be divided into:
When | r| > K1, and when r is negative value, I3=I2+ (c-b)-K1;
When | r| > K1, and when r is positive, I3=I2+ (c-b);
In addition, when | during r| < K1, I3=b'+ (c-b), wherein, b' is the average current value in interval, current location.
Concrete, when appearance | during r| > K1, likely there is anti-pinch, now be anti-pinch to judge in advance, and whether it specifically there will be anti-pinch, then still need to judge with comparing of Second Threshold with the difference between its current reference value according to the average current value in the next position interval.
In addition, as long as occur | r| > K1, the mode of I3=I2+ (c-b) is adopted to calculate the current reference value in the next position interval, so, also obtained by such mode relative to the current reference value in the next position interval the next position is interval, i.e. I4=I3+ (d-c), namely only adopts current reference value to obtain, but not adopts average current value.
Electric side preventing slide door clamping method disclosed in the present embodiment, the average current value in interval, current location is operated in by detection side slide switch, obtain the current reference value in interval, precalculated current location, difference between the average current value and the current reference value in interval, current location in interval, current location is greater than first threshold, send anti-pinch instruction, otherwise, calculate the difference of the average current value between the average current value in interval, current location and last lane place, as the first difference between current, the second difference between current between interval, current location and last lane place is obtained from the second difference between current group prestored, second difference between current group comprises the difference between current between the interval, each position of historical storage in the operation of side sliding door switch and its last lane place, relatively the first difference between current and the second difference between current, the current reference value in the next position interval is obtained according to comparative result.This programme is by comparing the difference between the average current value in interval, current location and its current reference value, send anti-pinch instruction, or for the next position interval anti-pinch judge prepare, achieve and the switch running of side sliding door is each time detected, and carry out anti-pinch judgement according to the concrete situation between each lane place, avoid the change of increase along with side sliding door service time or temperature, voltage etc., its reference data is unalterable, not meeting anti-pinch present situation, there is the problem compared with big error in the anti-pinch effect caused.
Present embodiment discloses a kind of electric side preventing slide door clipping system, its structural representation as shown in Figure 3, comprising:
Detecting unit 31, first acquiring unit 32, the first comparing unit 33 be connected with detecting unit 31 and the first acquiring unit 32 respectively, the computing unit 34 be connected with the first comparing unit 33, second acquisition unit 35, the second comparing unit 36 be connected with computing unit 34 and second acquisition unit 35 respectively.
Wherein, detecting unit 31 detection side slide switch operates in the average current value in interval, current location;
In this side sliding door switch running, the average current value in direct-detection each position interval.
First acquiring unit 32 is for obtaining the current reference value in interval, precalculated current location;
Whether the first comparing unit 33 is greater than first threshold for the difference compared between the average current value of current location and the current reference value in interval, current location; If so, anti-pinch instruction is then sent, otherwise, send computations;
Computing unit 34 for calculating the difference of the average current value between the average current value in interval, current location and last lane place according to computations, as the first difference between current;
Second acquisition unit 35 for obtaining the second difference between current between interval and last lane place, current location from the second difference between current group prestored, and the second difference between current group comprises: the difference between current during side sliding door switch runs between interval and its last lane place, each position of historical storage;
Second difference between current group comprises: the difference between current during side sliding door switch runs between interval and its last lane place, each position of historical storage.
Side sliding door is in the process from standard-sized sheet to complete shut-down and from complete shut-down to standard-sized sheet, electric current is change, can in side sliding door motion process, multistage is divided into according to hall position, namely by Hall element, whole motion process is equally divided into multistage, namely between multiple lane place, in side sliding door switching movements process, obtain average current when side sliding door arrives between each lane place, and calculate between each lane place and be positioned at the difference of the average current between the last lane place between this lane place, form the first difference between current group.
Such as: be that the second place is interval between the lane place of current detection, detecting the average current difference obtaining second place interval and primary importance interval in the operation of this side sliding door is the first difference between current; Now, the difference between current in second place interval and primary importance interval during the side sliding door before that extraction is preserved from the second difference between current group of storage runs, if before preserving, in side sliding door motion, the second place is interval is the second difference between current with the difference between current in primary importance interval, obtaining the difference between the first difference between current and the second difference between current, also can be the absolute value of the difference of acquisition first difference between current and the second difference between current.
After sending anti-pinch instruction, keep the difference between current in the second difference between current group between interval, current location and its last lane place constant.
Second comparing unit 36, for comparing the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place, obtains the current reference value in the next position interval according to comparative result.
Can obtain the current reference value in the next position interval according to computing unit, second acquisition unit and the second comparing unit, wherein, the current reference value in interval, current location can according to same Procedure Acquisition.
Wherein, the structural representation of the second comparing unit 36 can as shown in Figure 4, comprise:
First judgment sub-unit 41, be connected with the first judgment sub-unit 41 first obtains subelement 42, obtains with first the first computation subunit 43 that subelement 42 is connected.
Wherein, the first judgment sub-unit 41 is for judging whether the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold;
When first acquisition subelement 42 is for judging that in the first judgment sub-unit 41 absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold, obtain second difference between current in the next position interval and interval, current location in the second difference between current group, and the average current value in interval, current location;
The current reference value of the first computation subunit 43 for utilizing the average current value in interval, current location and the next position the second difference between current that is interval and interval, current location to calculate the next position interval.
Further, the second comparing unit 36 can also comprise: obtain with first the second computation subunit 44 that subelement is connected.
The current reference value of the second computation subunit 44 for utilizing the current reference value in interval, current location and the next position the second difference between current that is interval and interval, current location to calculate the next position interval.
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than first threshold, anti-pinch is there will not be in this lane place, when the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is greater than first threshold, it occurs the possibility of anti-pinch, now, pre-anti-pinch instruction can be sent, but not anti-pinch instruction.
When there will not be anti-pinch in interval, current location, just needing for judge whether that anti-pinch is prepared next time, namely calculating the current reference value in the next position interval.
And the current reference value in the next position interval is the second difference between current that is interval by the next position and interval, current location, and the reference current value in the average current value in interval, current location or interval, current location calculates.
Judging to calculate the reference current value in the next position interval is average current value by interval, current location or reference current value, be by the first difference between current and in the second difference between current group interval, current location obtain with comparing of Second Threshold with the absolute value of the difference between the second difference between current between last lane place.
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold, calculated the current reference value in the next position interval by the average current value in interval, current location; When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is not less than Second Threshold, calculated the current reference value in the next position interval by the current reference value in interval, current location.
Concrete, when the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold, calculating the current reference value in the next position interval can be: the average current value in interval, current location is added with second difference between current in interval, current location with the next position interval with, be the current reference value in the next position interval;
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is not less than Second Threshold, calculating the current reference value in the next position interval can be: the current reference value value in interval, current location is added with second difference between current in interval, current location with the next position interval with, be the current reference value in the next position interval.
Concrete, if interval, current location is between N lane place, then the next position interval is between N+1 lane place, current reference value between N+1 lane place is: the average current value between N lane place adds the difference between current in the second difference between current group of preserving in advance between N+1 lane place and between N lane place, obtain and.
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is not less than Second Threshold, and interval, current location is between N lane place, then the next position interval is between N+1 lane place, current reference value between N+1 lane place is: the current reference value between N lane place adds the difference between current in the second difference between current group of preserving in advance between N+1 lane place and between N lane place, obtain and.
Wherein, the account form of the current reference value between N lane place can be identical with the obtain manner of the current reference value between N+1 lane place.
In addition, when N is 2, the current reference value between the 2nd lane place is: the difference between current in the average current value in this electric side slide switching movements between the 1st lane place and the second difference between current group of preserving in advance between the 2nd lane place and between the 1st lane place and.
In addition, when the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is not less than Second Threshold, whether the difference that can also judge the second difference between current between interval and last lane place, current location in the first difference between current and the second difference between current group is negative, if this difference is negative, then by the current reference value in interval, current location and the next position interval is added with second difference between current in interval, current location with, do difference with Second Threshold, calculate the current reference value in the next position interval; When this difference is nonnegative number, be added with second difference between current in interval, current location by the current reference value in interval, current location and the next position interval with, calculate the current reference value in the next position interval.
Now illustrate:
Suppose, first difference between current is b'-a', the second difference between current in second difference between current group between interval, current location and last lane place is b-a, in second difference between current group, the next position is interval is c-b with second difference between current in interval, current location, first threshold is K1, and the second difference between current between interval, current location and last lane place and the value of the first difference between current are
r, then
r=(
b'
-a')
-(
b-a), suppose that the current reference value in interval, current location is I2, the current reference value in the next position interval is I3.
So, when | during r| > K1, I3=I2+ (c-b), it can also specifically be divided into:
When | r| > K1, and when r is negative value, I3=I2+ (c-b)-K1;
When | r| > K1, and when r is positive, I3=I2+ (c-b);
In addition, when | during r| < K1, I3=b'+ (c-b), wherein, b' is the average current value in interval, current location.
Concrete, when appearance | during r| > K1, likely there is anti-pinch, now be anti-pinch to judge in advance, and whether it specifically there will be anti-pinch, then still need to judge with comparing of Second Threshold with the difference between its current reference value according to the average current value in the next position interval.
In addition, as long as occur | r| > K1, the mode of I3=I2+ (c-b) is adopted to calculate the current reference value in the next position interval, so, also obtained by such mode relative to the current reference value in the next position interval the next position is interval, i.e. I4=I3+ (d-c), namely only adopts current reference value to obtain, but not adopts average current value.
Further, electric side preventing slide door clipping system disclosed in the present embodiment, can also comprise: the judging unit be connected with the second comparing unit.
Judging unit is for judging whether the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is less than the 3rd threshold value; If so, then the second difference between current in the second difference between current group between interval, current location and last lane place is replaced with the first difference between current, otherwise, the second difference between current in the second difference between current group between interval, current location and last lane place is replaced with the 3rd threshold value.
Concrete, judging unit can also be: first judge whether the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is greater than the 4th threshold value, when the absolute value of this difference is not more than the 4th threshold value, change between the second difference between current then thinking between interval and last lane place, current location in the first difference between current and the second difference between current group is little, the second difference between current in the second difference between current group prestored between interval, current location and last lane place is not upgraded, the second difference between current in the second difference between current group of preserving before namely keeping between interval, current location and last lane place is constant,
The absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is greater than the 4th threshold value, and when being less than the 3rd threshold value, then the second difference between current in the second difference between current group between interval, current location and last lane place is replaced with the first difference between current, namely the renewal of data in the second difference between current group is realized, the second difference between current group is made to continue to keep last state in electric side slide switching process, to overcome electric side slide on-off times too much or the electric current that causes of the change of temperature etc., the change of voltage etc., reduce the error at every turn detecting the current reference value obtained,
When the absolute value of the difference between the second difference between current in the first difference between current and the second difference between current group between interval, current location and last lane place is greater than the 3rd threshold value, then think that this difference is excessive, the second difference between current in second difference between current group between interval, current location and last lane place is replaced by the 3rd threshold value, further, the renewal of this current differential after holding whole process, just can carry out storage update to pass or from pass from holding at electric side slide.
Electric side preventing slide door clipping system disclosed in the present embodiment, the average current value in interval, current location is operated in by detection side slide switch, obtain the current reference value in interval, precalculated current location, difference between the average current value and the current reference value in interval, current location in interval, current location is greater than first threshold, send anti-pinch instruction, otherwise, calculate the difference of the average current value between the average current value in interval, current location and last lane place, as the first difference between current, the second difference between current between interval, current location and last lane place is obtained from the second difference between current group prestored, second difference between current group comprises the difference between current between the interval, each position of historical storage in the operation of side sliding door switch and its last lane place, relatively the first difference between current and the second difference between current, the current reference value in the next position interval is obtained according to comparative result.This programme is by comparing the difference between the average current value in interval, current location and its current reference value, send anti-pinch instruction, or for the next position interval anti-pinch judge prepare, achieve and the switch running of side sliding door is each time detected, and carry out anti-pinch judgement according to the concrete situation between each lane place, avoid the change of increase along with side sliding door service time or temperature, voltage etc., its reference data is unalterable, not meeting anti-pinch present situation, there is the problem compared with big error in the anti-pinch effect caused.
In this manual, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random access memory (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an electric side preventing slide door clamping method, is characterized in that, comprising:
Detection side slide switch operates in the average current value in interval, current location;
Obtain the current reference value in interval, precalculated described current location;
Difference between the average current value and the current reference value in interval, current location in interval, described current location is greater than first threshold, send anti-pinch instruction;
Difference between the average current value and its current reference value in interval, described current location is not more than first threshold, calculate the difference of the average current value between the average current value in interval, described current location and last lane place, as the first difference between current;
From the second difference between current group prestored, obtain the second difference between current between interval and last lane place, described current location, described second difference between current group comprises: the difference between current during side sliding door switch runs between interval and its last lane place, each position of historical storage;
The second difference between current in more described first difference between current and the second difference between current group between interval and last lane place, current location, obtains the current reference value in the next position interval according to comparative result.
2. method according to claim 1, it is characterized in that, the second difference between current in described first difference between current and the second difference between current group between interval and last lane place, current location, obtains the current reference value in the next position interval, is specially according to comparative result:
Judge whether the absolute value of the difference between the second difference between current in described first difference between current and described second difference between current group between interval, current location and last lane place is less than Second Threshold;
If so, second difference between current in the next position interval and interval, current location in described second difference between current group is then obtained, and the average current value in interval, described current location;
The average current value in interval, described current location and described the next position the second difference between current that is interval and interval, current location is utilized to calculate the current reference value in described the next position interval.
3. method according to claim 1, it is characterized in that, the second difference between current in described first difference between current and the second difference between current group between interval and last lane place, current location, obtains the current reference value in the next position interval, is specially according to comparative result:
Judge whether the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold;
If not, then obtain second difference between current in the next position interval and interval, current location in described second difference between current group, and the current reference value in interval, described current location;
The current reference value in interval, described current location and the next position the second difference between current that is interval and interval, current location is utilized to calculate the current reference value in described the next position interval.
4. method according to claim 3, is characterized in that, the described current reference value utilizing the current reference value in interval, described current location and the next position the second difference between current that is interval and interval, current location to calculate described the next position interval, is specially:
Whether the difference judging the second difference between current between interval and last lane place, current location in described first difference between current and the second difference between current group is negative;
If so, then by the current reference value in interval, described current location is added with second difference between current in interval, current location with described the next position interval with, do difference with described Second Threshold, calculate the current reference value in described the next position interval;
Otherwise, be added with second difference between current in interval, current location by the current reference value in interval, described current location and described the next position interval with, calculate the current reference value in described the next position interval.
5. method according to claim 1, it is characterized in that, the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place, after obtaining the current reference value in the next position interval, also comprises according to comparative result:
Judge whether the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than the 3rd threshold value;
If so, then the second difference between current in described second difference between current group between interval, current location and last lane place is replaced with the first difference between current; Otherwise, the second difference between current in described second difference between current group between interval, current location and last lane place is replaced with described 3rd threshold value.
6. an electric side preventing slide door clipping system, it is characterized in that, comprise: detecting unit, first acquiring unit, the first comparing unit be connected with described detecting unit and the first acquiring unit respectively, the computing unit be connected with described first comparing unit, second acquisition unit, the second comparing unit be connected with described computing unit and second acquisition unit respectively, wherein:
Described detecting unit is used for the average current value that detection side slide switch operates in interval, current location;
Described first acquiring unit is for obtaining the current reference value in interval, precalculated described current location;
Whether the difference that described first comparing unit is used between the average current value of more described current location and the current reference value in interval, current location is greater than first threshold; If so, anti-pinch instruction is then sent, otherwise, send computations;
Described computing unit calculates the difference of the average current value between the average current value in interval, described current location and last lane place, as the first difference between current according to described computations;
Described second acquisition unit is used for obtaining the second difference between current between interval and last lane place, described current location from the second difference between current group prestored, and described second difference between current group comprises: the difference between current during side sliding door switch runs between interval and its last lane place, each position of historical storage;
Described second comparing unit is used for the second difference between current in more described first difference between current and the second difference between current group between interval, current location and last lane place, obtains the current reference value in the next position interval according to comparative result.
7. system according to claim 6, it is characterized in that, described second comparing unit specifically comprises: the first judgment sub-unit, and be connected with described first judgment sub-unit first obtains subelement, the first computation subunit that subelement is connected is obtained with described first, wherein:
Described first judgment sub-unit is for judging whether the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold;
When described first acquisition subelement is for judging that in described first judgment sub-unit the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than Second Threshold, obtain second difference between current in the next position interval and interval, current location in described second difference between current group, and the average current value in interval, described current location;
The current reference value of described first computation subunit for utilizing the average current value in interval, described current location and described the next position the second difference between current that is interval and interval, current location to calculate described the next position interval.
8. system according to claim 7, is characterized in that, described second comparing unit also comprises: obtain with described first the second computation subunit that subelement is connected, wherein:
The current reference value of described second computation subunit for utilizing the current reference value in interval, described current location and the next position the second difference between current that is interval and interval, current location to calculate described the next position interval.
9. system according to claim 8, is characterized in that, described second computation subunit specifically for:
Whether the difference judging the second difference between current between interval and last lane place, current location in described first difference between current and the second difference between current group is negative;
If so, then by the current reference value in interval, described current location is added with second difference between current in interval, current location with described the next position interval with, do difference with described Second Threshold, calculate the current reference value in described the next position interval;
Otherwise, be added with second difference between current in interval, current location by the current reference value in interval, described current location and described the next position interval with, calculate the current reference value in described the next position interval.
10. system according to claim 6, is characterized in that, also comprises: the judging unit be connected with described second comparing unit, wherein:
Described judging unit is for judging whether the absolute value of the difference between the second difference between current in described first difference between current and the second difference between current group between interval, current location and last lane place is less than the 3rd threshold value; If so, then the second difference between current in described second difference between current group between interval, current location and last lane place is replaced with the first difference between current; Otherwise, the second difference between current in described second difference between current group between interval, current location and last lane place is replaced with described 3rd threshold value.
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Address after: 4 / F, building 1, No.14 Jiuxianqiao Road, Chaoyang District, Beijing 100020 Patentee after: Beijing Jingwei Hirain Technologies Co.,Inc. Address before: 8 / F, block B, No. 11, Anxiang Beili, Chaoyang District, Beijing 100101 Patentee before: Beijing Jingwei HiRain Technologies Co.,Ltd. |
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