CN111472635A - Method and device for acquiring resistance characteristic data of electric window - Google Patents
Method and device for acquiring resistance characteristic data of electric window Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
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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
- E05Y2900/55—Windows
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Abstract
The invention provides a method and a device for acquiring resistance characteristic data of an electric window. And when the controlled object reaches a mechanical zero point, selecting a motor position and a reference motor rotating speed corresponding to the controlled object in the anti-pinch area from the stored reference motor rotating speeds corresponding to the preset motor positions, and obtaining resistance characteristic data of the electric window according to the selected motor position and the reference motor rotating speed. According to the process, the controlled object in the scheme can obtain the resistance characteristic data only by executing the closing action once (namely closing from the initial position to the mechanical zero point), so that the time required for obtaining the resistance characteristic data in the scheme is one third of that in the traditional scheme, the time required for obtaining the resistance characteristic data is greatly saved, and the production efficiency of the electric window is further improved.
Description
Technical Field
The invention belongs to the technical field of automobile electronics, and particularly relates to a method and a device for acquiring resistance characteristic data of an electric window.
Background
For the safety of users, the design of power windows (including windows and skylights) of automobiles must meet the corresponding safety design rules, i.e., the power windows must have the anti-pinch function during the closing process and the anti-pinch force is required to be less than 100N. The anti-pinch function means that the electric window can be automatically stopped or returned when meeting resistance (such as the hand of a user) in the closing process, so that the body of the user is prevented from being hurt. The anti-pinching force is an acting force that acts on an object generating a resistance after the power window encounters the resistance, and if the acting force is large, the body of the user is seriously injured, and therefore, the numerical value of the anti-pinching force is regulated in safety design and regulation.
The method comprises the steps of firstly, determining the mechanical zero position of the electric window, further determining the definition of the anti-pinch region in control software of the electric window controller according to the mechanical zero position, marking the position of the mechanical zero point, further, as shown in FIG. 1, generally, ① closing an object from an initial position (namely, a learning initial position in FIG. 1, the distance from the opening position is more than 250mm) to the mechanical zero position, ② opening a controlled object from the machine to the outside of a controlled region (namely, a sliding region 4mm-200mm in FIG. 1), ③ starting to close the controlled object from the position outside the anti-pinch region to a soft stop position, and obtaining the corresponding relation between the reference motor rotation speed of the anti-pinch region and the anti-pinch reference motor rotation speed in the anti-pinch region.
As can be seen from the above, the time taken for the current solution to complete the 3 steps in fig. 1 is about 3 times as long as one closing process of the power window, and the solution is time-consuming. The above process is performed once for each electric window on the electric window production line, which results in very low production efficiency of the electric window production line.
Disclosure of Invention
In view of the above, the present invention provides a method and an apparatus for acquiring resistance characteristic data of an electric window, so as to solve the problem of long time consumption in the current resistance characteristic data acquisition process, and the specific technical solution is as follows:
in one aspect, the present invention provides a method for acquiring resistance characteristic data of a power window, including:
calculating the actual motor rotating speed corresponding to each unit motor position of a motor in the electric window in the process that a controlled object in the electric window is closed to a mechanical zero point from an initial position;
for each unit motor position, calculating to obtain a corresponding reference motor rotating speed according to the actual motor rotating speed corresponding to the unit motor position, and obtaining and storing a reference motor rotating speed corresponding to each preset motor position according to the reference motor rotating speed corresponding to each unit motor position;
and when the controlled object reaches a mechanical zero point, selecting a preset motor position and a reference motor rotating speed corresponding to the controlled object in the anti-pinch area from the stored preset motor positions and reference motor rotating speeds, and obtaining resistance characteristic data of the electric window according to the selected preset motor position and reference motor rotating speed.
In a possible implementation manner, the obtaining of the reference motor speed corresponding to each preset motor position according to the reference motor speed corresponding to each unit motor position includes:
dividing a specified number of unit motor positions into a segment, and determining each segment as a preset motor position;
and calculating the average value of the reference motor rotating speeds corresponding to each section to obtain the reference motor rotating speed corresponding to each preset motor position of the motor.
In one possible implementation, after obtaining the resistance characteristic data, the method further comprises:
carrying out anti-clamping force test on the electric window, and measuring an anti-clamping force test value generated by the motor in the anti-clamping force test process;
if the anti-pinch force test value is within a normal anti-pinch force range, determining that the resistance characteristic data is within a normal range;
and if the anti-pinch force test value is not in the normal anti-pinch force range, determining that the resistance characteristic data is not in the normal range.
In a possible implementation manner, the obtaining resistance characteristic data of the power window according to the selected preset motor position and the reference motor rotation speed includes:
segmenting a motor position region corresponding to the anti-pinch region according to a preset segmentation strategy;
and calculating the average value of the reference motor rotating speed corresponding to each segment in the motor position area to obtain the resistance characteristic data of the electric window.
In a possible implementation manner, the segmenting the motor position region corresponding to the anti-pinch region according to a preset segmentation strategy includes:
dividing an area which is less than or equal to a preset distance from the mechanical zero point into a first preset number of preset motor positions in a motor position area corresponding to the anti-pinch area by taking the first preset number of preset motor positions as a subsection;
prevent pressing from both sides in the motor position region that the region corresponds, will with the distance at mechanical zero is greater than predetermine the region of distance to the second predetermines a quantity and predetermines the motor position and divide for a segmentation, wherein, the second predetermines a quantity and is greater than first predetermine quantity.
In another aspect, the present invention provides a device for acquiring resistance characteristic data of a power window, including:
the actual rotating speed acquisition module is used for calculating the actual motor rotating speed corresponding to each unit motor position of the motor in the electric window in the process that the controlled object in the electric window is closed to the mechanical zero point from the initial position;
the reference rotating speed acquisition module is used for calculating and obtaining the corresponding reference motor rotating speed according to the actual motor rotating speed corresponding to each unit motor position and obtaining the reference motor rotating speed corresponding to each preset motor position according to the reference motor rotating speed corresponding to each unit motor position;
the reference rotating speed storage module is used for storing the reference motor rotating speed corresponding to each preset motor position obtained in the process that the controlled object in the electric window is closed to the mechanical zero point from the initial position;
and the resistance characteristic data acquisition module is used for selecting the corresponding preset motor position and reference motor rotating speed of the controlled object in the anti-pinch area from the stored preset motor positions and reference motor rotating speeds after the controlled object reaches the mechanical zero point, and acquiring the resistance characteristic data of the electric window according to the selected preset motor position and reference motor rotating speed.
In a possible implementation manner, the reference rotation speed obtaining module is specifically configured to:
dividing a specified number of unit motor positions into a segment, and determining each segment as a preset motor position;
and calculating the average value of the reference motor rotating speeds corresponding to each section to obtain the reference motor rotating speed corresponding to each preset motor position of the motor.
In one possible implementation, the apparatus further includes:
the anti-clamping force testing module is used for testing the anti-clamping force of the electric window and measuring an anti-clamping force testing value generated by the motor in the anti-clamping force testing process;
the first determining module is used for determining that the resistance characteristic data is in a normal range when the anti-pinch force test value is in a normal anti-pinch force range;
and the second determining module is used for determining that the resistance characteristic data is not in the normal range when the anti-pinch force test value is not in the normal anti-pinch force range.
In one possible implementation, the resistance characteristic data obtaining module is specifically configured to:
segmenting a motor position region corresponding to the anti-pinch region according to a preset segmentation strategy;
and calculating the average value of the reference motor rotating speed corresponding to each segment in the motor position area to obtain the resistance characteristic data of the electric window.
In a possible implementation manner, the resistance characteristic data acquisition module is configured to, according to a preset segmentation strategy, segment a motor position region corresponding to the anti-pinch region, and specifically configured to:
dividing an area which is less than or equal to a preset distance from the mechanical zero point into a first preset number of preset motor positions in a motor position area corresponding to the anti-pinch area by taking the first preset number of preset motor positions as a subsection;
prevent pressing from both sides in the motor position region that the region corresponds, will with the distance at mechanical zero is greater than predetermine the region of distance to the second predetermines a quantity and predetermines the motor position and divide for a segmentation, wherein, the second predetermines a quantity and is greater than first predetermine quantity.
In yet another aspect, the present invention also provides a power window controller, including a processor, and a memory and a bus connected to the processor;
the processor and the memory are communicated with each other through the bus;
the memory stores program instructions, and the processor is used for calling the program instructions in the memory to execute any one of the above resistance characteristic data acquisition methods of the power window.
The invention provides a resistance characteristic data acquisition method of an electric window, which is characterized in that in the process that a controlled object of the electric window is closed to a mechanical zero point from an initial position, the actual motor rotating speed corresponding to each unit motor position of a motor is obtained through calculation; and calculating to obtain the reference motor rotating speed corresponding to each unit motor position according to the actual motor rotating speed corresponding to each unit motor position. And then, obtaining and storing the reference motor rotating speed corresponding to each preset motor position according to the reference motor rotating speed corresponding to each unit motor position. And when the controlled object reaches a mechanical zero point, selecting the corresponding motor position and the reference motor rotating speed when the controlled object is in the anti-pinch area from the stored reference motor rotating speeds corresponding to the preset motor positions. And finally, acquiring resistance characteristic data of the electric window according to the selected preset motor position and the reference motor rotating speed. According to the scheme, the controlled object can obtain the resistance characteristic data only by performing closing action once, namely closing from the initial position to the mechanical zero point, so that the time required for obtaining the resistance characteristic data is one third of that of the traditional scheme, the time required for obtaining the resistance characteristic data is greatly saved, and the production efficiency of the electric window production line is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the steps in a conventional resistance characteristic data acquisition scheme for a motorized window;
fig. 2 is a flowchart of a method for acquiring resistance characteristic data of a power window according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of a motor position zone segmentation provided by an embodiment of the present invention;
fig. 4 is a flowchart of another method for acquiring resistance characteristic data of a power window according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for acquiring resistance characteristic data of a power window according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a resistance characteristic data acquisition apparatus for a power window according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another resistance characteristic data acquisition apparatus for a power window according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, a flowchart of a method for acquiring resistance characteristic data of a power window according to an embodiment of the present invention is shown, where the method is applied to a power window controller for learning to obtain the resistance characteristic data of the power window. As shown in fig. 2, the method comprises the steps of:
and S110, calculating the actual motor rotating speed corresponding to each unit motor position of the motor in the electric window in the process that the controlled object is closed to the mechanical zero point from the initial position.
The controlled object is an object which is driven by a motor to automatically move in the electric window, such as glass and a curtain which can be automatically lifted on a door and a window, or glass which can be automatically opened and closed on a skylight.
Taking the skylight as an example, the initial position refers to the position of the controlled object after the skylight is assembled on the production line, for example, the initial position of the skylight glass is generally in the middle position of the skylight (the position with the distance from the opening being more than 250 mm).
In an application scene, the position of the motor is obtained through the Hall sensor, and then the position of the controlled object is determined according to the position of the motor. Of course, in other application scenarios, the motor position may be calculated by other schemes.
The electric window controller obtains the motor position and the actual rotating speed of the motor through obtaining Hall pulses sent by a Hall sensor of the motor. The unit motor position refers to the smallest position unit in software, such as each position sensed by a hall sensor, namely a hall position.
And S120, calculating and obtaining the corresponding reference motor rotating speed according to the actual motor rotating speed corresponding to each unit motor position for each unit motor position, and obtaining and storing the reference motor rotating speed corresponding to each preset motor position according to the reference motor rotating speed corresponding to each unit motor position.
After obtaining each unit motor position of the motor and the actual motor rotating speed corresponding to each unit motor position, determining the current position of the controlled object according to the unit motor position; and then, calculating to obtain the reference motor rotating speed corresponding to the unit motor position according to the actual motor rotating speed of the unit motor position and the sectional position parameters of the position of the controlled object corresponding to the unit motor position. The segmentation position parameters are set in advance according to anti-clamping force design requirements corresponding to corresponding segmentation areas, and the corresponding segmentation areas refer to position areas corresponding to positions of controlled objects corresponding to the unit motor positions.
In one embodiment of the present invention, each unit motor position and corresponding reference motor speed during the process of closing the controlled object from the initial position to the mechanical zero point are stored in a memory (e.g., random access memory, RAM) as raw reference speed data for subsequent steps. In this embodiment, one unit motor position is a preset motor position.
And S130, after the controlled object is detected to reach the mechanical zero point, selecting the corresponding preset motor position and reference motor rotating speed when the controlled object is in the anti-pinch area from the stored preset motor positions and reference motor rotating speeds, and obtaining resistance characteristic data of the electric window according to the selected preset motor position and reference motor rotating speed.
After the controlled object is closed to the mechanical zero point, intercepting the data corresponding to the controlled object in the anti-pinch area from the stored data of all the preset motor positions and the corresponding reference motor rotating speeds, wherein the anti-pinch area is an area with a preset distance range from the opening position of the electric window, for example, an area 4mm-200mm away from the sliding area in fig. 1.
If the reference motor rotation speed corresponding to each preset motor position stored in the RAM is stored as resistance characteristic data in the nonvolatile memory of the power window controller, a large number of storage resources need to be occupied, and therefore, in order to reduce the storage resources occupied by the resistance characteristic data, a large data volume can be converted into a small data volume for storage, in one embodiment of the present invention, the conversion process is as follows:
(1) and segmenting the motor position area corresponding to the anti-pinch area according to a preset segmentation strategy.
In an embodiment of the present invention, since the closer to the opening position of the power window, the higher the control accuracy is required, and the farther from the opening position of the power window, the lower the control accuracy is required, the motor position region corresponding to the anti-pinch region may be divided according to different division criteria:
for example, the number of preset motor positions included in each segment is smaller at a position closer to the opening position of the power window, and the number of preset motor positions included in each segment is larger at a position farther from the opening position of the power window.
In one possible implementation manner, in an area which is within an anti-pinch area and is less than or equal to a preset distance from a mechanical zero point, dividing the area by taking a first preset number of preset motor positions as a section; and in the area which is in the anti-pinch area and is more than the preset distance from the mechanical zero point, dividing the area by taking the preset motor positions with the second preset number as a section.
The first preset number is smaller than the second preset number, and if the first preset number is 7, the second preset number is 10.
In other embodiments of the present invention, the anti-pinch region may be segmented according to more division criteria, for example, the first m segments of the anti-pinch region, each segment including x unit motor positions; m +1 th to m + n th segments, each segment including y unit motor positions; of the m + n +1 th to m + n + o th segments, each segment includes z unit motor positions. As shown in FIG. 3, the first three segments of the anti-pinch region each include 7 unit motor positions and each segment includes 10 unit motor positions from the 4 th segment.
(2) And calculating the average value of the reference motor rotating speed corresponding to each section in the motor position area to obtain the resistance characteristic data of the electric window.
After the motor position area corresponding to the anti-pinch area is divided into a plurality of sections, the average value of the rotating speed of the reference motor corresponding to the sections is calculated. And each section corresponding to the anti-pinch area and the corresponding reference motor rotating speed average value are resistance characteristic data. Finally, the resistance characteristic data is stored in a non-volatile memory of the power window controller.
In the method for acquiring resistance characteristic data of the electric window provided by the embodiment, in the process that a controlled object of the electric window is closed to a mechanical zero point from an initial position, the actual motor rotating speed of the motor corresponding to each unit motor position is obtained through calculation; and calculating to obtain the reference motor rotating speed corresponding to each unit motor position according to the actual motor rotating speed corresponding to each unit motor position. And then, obtaining and storing the reference motor rotating speed corresponding to each preset motor position according to the reference motor rotating speed corresponding to each unit motor position. And when the controlled object reaches a mechanical zero point, selecting the corresponding motor position and the reference motor rotating speed when the controlled object is in the anti-pinch area from the stored reference motor rotating speeds corresponding to the preset motor positions. And finally, acquiring resistance characteristic data of the electric window according to the selected preset motor position and the reference motor rotating speed. According to the scheme, the controlled object can obtain the resistance characteristic data only by performing closing action once, namely closing from the initial position to the mechanical zero point, so that the time required for obtaining the resistance characteristic data is one third of that of the traditional scheme, the time required for obtaining the resistance characteristic data is greatly saved, and the production efficiency of the electric window production line is further improved.
In the resistance characteristic data obtaining method provided in the above embodiment, the reference motor rotation speed corresponding to each unit motor position (that is, hall position) needs to be stored in the process of closing the power window from the initial position to the mechanical zero point, and the process of opening the controlled object from the initial position to the mechanical zero point includes a plurality of hall positions, for example, 3000 hall positions, assuming that each reference rotation speed occupies 1 byte, and the reference rotation speed data corresponding to the hall position corresponding to the entire closing process needs to occupy 3000 bytes.
In order to reduce the amount of storage resources occupied by the original reference motor rotation speed data, referring to fig. 4, the present invention further provides another method for acquiring resistance characteristic data of an electric window, in this embodiment, a process of acquiring a reference motor rotation speed corresponding to a preset motor position will be described in detail, and other steps are the same as those in the embodiment shown in fig. 2, and are not described herein again.
As shown in fig. 4, the present embodiment mainly includes the following steps:
and S110, calculating the actual motor rotating speed corresponding to each unit motor position of the motor in the electric window in the process that the controlled object in the electric window is closed to the mechanical zero point from the initial position.
And S121, calculating the corresponding reference motor rotating speed according to the actual motor rotating speed corresponding to each unit motor position.
After the motor position is obtained, the current position of the controlled object is determined according to the motor position, and the segmented position parameters corresponding to the segmented regions are obtained according to the segmented regions of the current position of the controlled object. And then, calculating according to the actual motor rotating speed corresponding to the motor position and the sectional position parameters to obtain a reference motor rotating speed corresponding to the motor position.
And S122, dividing the unit motor positions with the specified number into segments, determining each segment as a preset motor position, and calculating the average value of the reference motor rotating speed corresponding to each segment to obtain the reference motor rotating speed corresponding to each preset motor position of the motor.
In order to reduce the RAM resources occupied by the reference motor speed, in this embodiment, a plurality of (e.g., N) unit motor positions are divided into a motor position segment, and each segment is a preset motor position. Then, an average value of the reference motor rotation speeds corresponding to the N unit motor positions is calculated as the reference motor rotation speed of the segment.
It should be noted that the value of N needs to be determined by comprehensively considering hardware resource consumption and the influence on the magnitude of the anti-pinch force. If the value of N is too large, although the hardware resource consumption can be reduced, the clamping force can be influenced; on the contrary, if the value of N is too small, although the influence on the anti-pinch force can be avoided, the hardware resource consumption is not obviously reduced.
And S123, storing each preset motor position and the corresponding reference motor rotating speed in the RAM.
And storing each segment and the reference motor rotating speed average value corresponding to each segment into the RAM as original reference motor rotating speed data.
And S130, after the controlled object reaches the mechanical zero point, selecting the corresponding preset motor position and reference motor rotating speed when the controlled object is in the anti-pinch area from the stored preset motor positions and reference motor rotating speeds, and obtaining resistance characteristic data of the electric window according to the selected preset motor position and reference motor rotating speed.
In the embodiment of the invention, the motor position area corresponding to the anti-pinch area can be segmented according to a preset segmentation strategy, and then the average value of the reference motor rotating speed corresponding to each segment is calculated, so that the resistance characteristic data of the electric window is finally obtained.
That is, the resistance characteristic data finally obtained in this embodiment is obtained by dividing a specified number of unit motor positions into segments, and calculating a reference speed average value corresponding to each segment as a reference motor speed of the preset motor position; and segmenting the reference motor rotating speed of each preset motor position according to a preset segmentation strategy, calculating the average value of the reference motor rotating speeds of each preset motor position contained in each segment as the final reference motor rotating speed of the segment, and forming resistance characteristic data by each segment and the final reference motor rotating speed of each segment. Therefore, the scheme is equivalent to performing two times of compression on the reference motor rotating speed of each original unit motor position to obtain the final resistance characteristic data, so that the required storage resources are further reduced, and the hardware cost is further reduced.
According to the method for acquiring the resistance characteristic data of the electric window, the specified number of unit motor positions are divided into the segments, each segment and the reference speed average value corresponding to each segment are stored in the RAM as the original reference motor rotating speed data, so that the reference motor rotating speed corresponding to each unit motor position does not need to be stored, the storage resources occupied by the original reference motor rotating speed data are greatly reduced, and the hardware cost is further reduced.
In addition, in actual production, the situation that the anti-pinch force on the electric window production line is too large or too small may occur, and the magnitude of the anti-pinch force is related to the resistance characteristic data, so that the invention provides another resistance characteristic data acquisition method for the electric window, which is mainly used for verifying whether the resistance characteristic data is in a normal range.
As shown in fig. 5, the method further includes the following steps based on the embodiment shown in fig. 2:
s210, carrying out anti-pinch force test on the electric window, and measuring an anti-pinch force test value generated by the motor in the anti-pinch force test process.
In an application scenario, the formula for calculating the anti-pinch force is as follows:
f ═ × Kt × Kv (formula 1)
Wherein, F represents the anti-clamping force, MotorSpeed is the actual rotating speed of the motor collected by the electric window controller, Profile speed is the reference motor rotating speed stored in the electric window controller, Kt is the temperature calculation coefficient, Kv is the voltage calculation coefficient, and Kt and Kv are the parameters determined after static calibration. Therefore, the resistance characteristic data is important data for calculating the anti-clamping force, and therefore whether the resistance characteristic data is in the normal range can be judged by testing whether the anti-clamping force is in the normal range.
After resistance characteristic data of the electric window are obtained, an anti-pinch force test is carried out on the electric window, and whether the obtained resistance characteristic data are in a normal range or not is determined by judging whether the anti-pinch force is in the normal range or not.
When the anti-pinch force test is carried out on the electric window, the electric window is controlled to be closed, when the controlled object is in the anti-pinch area, the real-time rotating speed of the motor is controlled according to the resistance characteristic data, resistance is applied to the controlled object outside, and the anti-pinch force generated by the electric window is measured.
S220, judging whether the anti-pinch force test value is within a normal anti-pinch force range or not; if so, go to S230; if not, S240 is performed.
For example, if the normal range of the anti-pinching force is 65N-85N, whether the anti-pinching force test value is in the range is judged, if so, the anti-pinching force is normal, and then the resistance characteristic data is in the normal range; and if the anti-pinch force test value is not in the range of 65N-85N, indicating that the anti-pinch force is abnormal, and further indicating that the resistance characteristic data is not in the normal range.
And S230, determining that the resistance characteristic data is in a normal range.
If the resistance characteristic data are determined to be normal, the process is ended, and the resistance characteristic data acquisition process of the next electric window is continued.
And S240, determining that the resistance characteristic data is not in a normal range.
And if the resistance characteristic data obtained by learning is determined to be abnormal, moving the controlled object to a position larger than the maximum value of the anti-pinch area, and repeating the resistance characteristic data acquisition method.
According to the method for acquiring the resistance characteristic data of the electric window, after the resistance characteristic data is acquired at this time, the electric window is subjected to an anti-pinch force test, whether the resistance characteristic data is in a normal range is judged by judging whether the anti-pinch force is in the normal range, and whether the resistance characteristic data is accurate can be simply and quickly judged by the method.
Of course, since the resistance characteristic data is related to the actual anti-pinch force, in other embodiments, the determination of whether the resistance characteristic data is normal may be performed by determining the resistance characteristic data. If the resistance characteristic data is not in the normal range, the resistance characteristic data is relearned, that is, the steps 2 and 3 in fig. 1 are completed again. For another example, when completing the resistance characteristic data learning, it is determined whether the anti-pinch force corresponding to the resistance characteristic data is normal, and if not, the resistance characteristic data is relearned, that is, steps 2 and 3 in fig. 1 are completed again. The normal range of the resistance characteristic data can be determined according to the anti-pinch force, and the anti-pinch force of various resistance characteristic data can be obtained through calibration.
Corresponding to the embodiment of the method for acquiring the resistance characteristic data of the electric window, the invention also provides an embodiment of a device for acquiring the resistance characteristic data of the electric window.
As shown in fig. 6, a resistance characteristic data acquiring apparatus for a power window according to an embodiment of the present invention includes:
and an actual rotation speed obtaining module 110, configured to calculate an actual motor rotation speed corresponding to each unit motor position of the motor in the power window in a process that the controlled object in the power window is closed from the initial position to the mechanical zero point.
The reference rotation speed obtaining module 120 is configured to calculate, for each unit motor position, a corresponding reference motor rotation speed according to an actual motor rotation speed corresponding to the unit motor position, and obtain a reference motor rotation speed corresponding to each preset motor position according to a reference motor rotation speed corresponding to each unit motor position.
In an embodiment of the present invention, the reference rotation speed obtaining module 120 is specifically configured to:
dividing a specified number of unit motor positions into a segment, and determining each segment as a preset motor position; and calculating the average value of the reference motor rotating speeds corresponding to each section to obtain the reference motor rotating speed corresponding to each preset motor position of the motor.
And the reference rotating speed storage module 130 is configured to store reference motor rotating speeds corresponding to the preset motor positions obtained in a process that the controlled object in the power window is closed from the initial position to the mechanical zero point.
The resistance characteristic data obtaining module 140 is configured to, after the controlled object reaches the mechanical zero point, select a preset motor position and a reference motor rotation speed, which correspond to the controlled object when the controlled object is in the anti-pinch region, from among the stored preset motor positions and reference motor rotation speeds, and obtain resistance characteristic data of the electric window according to the selected preset motor position and reference motor rotation speed.
In an embodiment of the present invention, the resistance characteristic data obtaining module 140 is specifically configured to:
segmenting a motor position region corresponding to the anti-pinch region according to a preset segmentation strategy; and calculating the average value of the reference motor rotating speed corresponding to each section in the motor position area to obtain the resistance characteristic data of the electric window.
In an embodiment of the present invention, the resistance characteristic data obtaining module 140 is configured to, when segmenting the motor position region corresponding to the anti-pinch region according to a preset segmentation policy, specifically:
dividing an area which is less than or equal to a preset distance from a mechanical zero point into a first preset number of preset motor positions in a motor position area corresponding to the anti-pinch area by taking the first preset number of the preset motor positions as a subsection; in the motor position region that the anti-pinch region corresponds, will be greater than the region of predetermineeing the distance with the distance at mechanical zero point to the second predetermines a quantity of motor positions and divide for a segmentation, and wherein, the second predetermines a quantity and is greater than first predetermineeing quantity.
In the resistance characteristic data acquisition device of the power window provided by the embodiment and the method, in the process that the controlled object of the power window is closed from the initial position to the mechanical zero point, the reference motor rotating speed corresponding to each preset motor position of the motor is obtained through calculation and stored in the memory. And when the controlled object reaches a mechanical zero point, selecting a motor position and a reference motor rotating speed corresponding to the controlled object in the anti-pinch area from the stored reference motor rotating speeds corresponding to the preset motor positions, and obtaining resistance characteristic data of the electric window according to the selected motor position and the reference motor rotating speed. According to the process, the controlled object in the scheme can obtain the resistance characteristic data only by executing the closing action once (namely closing from the initial position to the mechanical zero point), so that the time required for obtaining the resistance characteristic data in the scheme is one third of that in the traditional scheme, the time required for obtaining the resistance characteristic data is greatly saved, and the production efficiency of the electric window production line is further improved.
Referring to fig. 7, a schematic structural diagram of another resistance characteristic data acquiring apparatus for a power window according to an embodiment of the present invention is shown, and this embodiment focuses on determining whether the learned resistance characteristic data is accurate by using an anti-pinch test.
As shown in fig. 7, the apparatus further includes, on the basis of the embodiment shown in fig. 6:
and the anti-clamping force testing module 210 is used for testing the anti-clamping force of the electric window and measuring the anti-clamping force testing value generated by the motor in the anti-clamping force testing process.
The first determination module 220 is configured to determine that the resistance characteristic data is within a normal range when the anti-pinch test value is within the normal anti-pinch range.
The second determination module 230 is configured to determine that the resistance characteristic data is not within the normal range when the anti-pinch test value is not within the normal anti-pinch range.
Of course, in other embodiments, the normal range of the resistance characteristic data may be determined directly according to the anti-pinch force, and then, it may be directly determined whether the learned resistance characteristic number is within the normal range of the resistance characteristic data. If the current resistance characteristic data is abnormal, in such a case, the controlled object needs to be moved to a position outside the anti-pinch region, and then the above process of learning the resistance characteristic data is repeated, that is, the process of the steps 2 and 3 in fig. 1 is completed.
The resistance characteristic data acquisition device of electric window that this embodiment provided, after this obtains resistance characteristic data, carries out the anti-pinch force test to electric window, judges whether resistance characteristic data is in normal range through judging whether anti-pinch force is in normal range, and this kind of mode can judge whether resistance characteristic data is accurate simply, swiftly.
The invention provides a power window controller, which comprises a processor, a memory and a bus, wherein the memory and the bus are connected with the processor; the processor and the memory are communicated with each other through a bus. The memory has stored therein program instructions executable on the processor. The processor implements any of the above-described methods of acquiring the resistance characteristic data of the power window when executing the program stored in the memory.
The processor comprises a kernel, the kernel fetches corresponding programs from the memory, and the kernel can be set to one or more than one.
The present invention also provides a storage medium executable by a computing device, the storage medium having stored therein a program that, when executed by the computing device, implements any of the above-described resistance characteristic data acquisition methods for a motorized window.
While, for purposes of simplicity of explanation, the foregoing method embodiments have been described as a series of acts or combination of acts, it will be appreciated by those skilled in the art that the present invention is not limited by the illustrated ordering of acts, as some steps may occur in other orders or concurrently with other steps in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
It should be noted that the embodiments in the present specification are mainly described as different from other embodiments, technical features adopted by the embodiments may be replaced and combined with each other, and the same and similar parts between the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The steps in the method of each embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs.
The device and the modules and sub-modules in the terminal in the embodiments of the present invention can be combined, divided and deleted according to actual needs.
In the embodiments provided in the present invention, it should be understood that the disclosed terminal, apparatus and method may be implemented in other ways. For example, the above-described terminal embodiments are merely illustrative, and for example, the division of a module or a sub-module is only one logical division, and there may be other divisions when the terminal is actually implemented, for example, a plurality of sub-modules or modules may be combined or integrated into another module, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules or sub-modules described as separate parts may or may not be physically separate, and parts that are modules or sub-modules may or may not be physical modules or sub-modules, may be located in one place, or may be distributed over a plurality of network modules or sub-modules. Some or all of the modules or sub-modules can be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, each functional module or sub-module in each embodiment of the present invention may be integrated into one processing module, or each module or sub-module may exist alone physically, or two or more modules or sub-modules may be integrated into one module. The integrated modules or sub-modules may be implemented in the form of hardware, or may be implemented in the form of software functional modules or sub-modules.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method of acquiring resistance characteristic data of a power window, comprising:
calculating the actual motor rotating speed corresponding to each unit motor position of a motor in the electric window in the process that a controlled object in the electric window is closed to a mechanical zero point from an initial position;
for each unit motor position, calculating to obtain a corresponding reference motor rotating speed according to the actual motor rotating speed corresponding to the unit motor position, and obtaining and storing a reference motor rotating speed corresponding to each preset motor position according to the reference motor rotating speed corresponding to each unit motor position;
and when the controlled object reaches a mechanical zero point, selecting a preset motor position and a reference motor rotating speed corresponding to the controlled object in the anti-pinch area from the stored preset motor positions and reference motor rotating speeds, and obtaining resistance characteristic data of the electric window according to the selected preset motor position and reference motor rotating speed.
2. The method of claim 1, wherein obtaining the reference motor speed corresponding to each preset motor position according to the reference motor speed corresponding to each unit motor position comprises:
dividing a specified number of unit motor positions into a segment, and determining each segment as a preset motor position;
and calculating the average value of the reference motor rotating speeds corresponding to each section to obtain the reference motor rotating speed corresponding to each preset motor position of the motor.
3. The method of claim 1, wherein after obtaining the resistance property data, the method further comprises:
carrying out anti-clamping force test on the electric window, and measuring an anti-clamping force test value generated by the motor in the anti-clamping force test process;
if the anti-pinch force test value is within a normal anti-pinch force range, determining that the resistance characteristic data is within a normal range;
and if the anti-pinch force test value is not in the normal anti-pinch force range, determining that the resistance characteristic data is not in the normal range.
4. A method according to any one of claims 1 to 3, wherein obtaining the resistance characteristic data of the power window based on the selected predetermined motor position and the reference motor speed comprises:
segmenting a motor position region corresponding to the anti-pinch region according to a preset segmentation strategy;
and calculating the average value of the reference motor rotating speed corresponding to each segment in the motor position area to obtain the resistance characteristic data of the electric window.
5. The method of claim 4, wherein segmenting the motor position zone corresponding to the anti-pinch zone according to a preset segmentation strategy comprises:
dividing an area which is less than or equal to a preset distance from the mechanical zero point into a first preset number of preset motor positions in a motor position area corresponding to the anti-pinch area by taking the first preset number of preset motor positions as a subsection;
prevent pressing from both sides in the motor position region that the region corresponds, will with the distance at mechanical zero is greater than predetermine the region of distance to the second predetermines a quantity and predetermines the motor position and divide for a segmentation, wherein, the second predetermines a quantity and is greater than first predetermine quantity.
6. A resistance characteristic data acquisition apparatus for a power window, comprising:
the actual rotating speed acquisition module is used for calculating the actual motor rotating speed corresponding to each unit motor position of the motor in the electric window in the process that the controlled object in the electric window is closed to the mechanical zero point from the initial position;
the reference rotating speed acquisition module is used for calculating and obtaining the corresponding reference motor rotating speed according to the actual motor rotating speed corresponding to each unit motor position and obtaining the reference motor rotating speed corresponding to each preset motor position according to the reference motor rotating speed corresponding to each unit motor position;
the reference rotating speed storage module is used for storing the reference motor rotating speed corresponding to each preset motor position obtained in the process that the controlled object in the electric window is closed to the mechanical zero point from the initial position;
and the resistance characteristic data acquisition module is used for selecting the corresponding preset motor position and reference motor rotating speed of the controlled object in the anti-pinch area from the stored preset motor positions and reference motor rotating speeds after the controlled object reaches the mechanical zero point, and acquiring the resistance characteristic data of the electric window according to the selected preset motor position and reference motor rotating speed.
7. The apparatus according to claim 6, wherein the reference rotation speed obtaining module is specifically configured to:
dividing a specified number of unit motor positions into a segment, and determining each segment as a preset motor position;
and calculating the average value of the reference motor rotating speeds corresponding to each section to obtain the reference motor rotating speed corresponding to each preset motor position of the motor.
8. The apparatus of claim 6, further comprising:
the anti-clamping force testing module is used for testing the anti-clamping force of the electric window and measuring an anti-clamping force testing value generated by the motor in the anti-clamping force testing process;
the first determining module is used for determining that the resistance characteristic data is in a normal range when the anti-pinch force test value is in a normal anti-pinch force range;
and the second determining module is used for determining that the resistance characteristic data is not in the normal range when the anti-pinch force test value is not in the normal anti-pinch force range.
9. The device according to any one of claims 6 to 8, wherein the resistance characteristic data acquisition module is specifically configured to:
segmenting a motor position region corresponding to the anti-pinch region according to a preset segmentation strategy;
and calculating the average value of the reference motor rotating speed corresponding to each segment in the motor position area to obtain the resistance characteristic data of the electric window.
10. The device of claim 9, wherein the resistance characteristic data acquisition module is configured to segment the motor position zone corresponding to the anti-pinch zone according to a preset segmentation strategy, and is specifically configured to:
dividing an area which is less than or equal to a preset distance from the mechanical zero point into a first preset number of preset motor positions in a motor position area corresponding to the anti-pinch area by taking the first preset number of preset motor positions as a subsection;
prevent pressing from both sides in the motor position region that the region corresponds, will with the distance at mechanical zero is greater than predetermine the region of distance to the second predetermines a quantity and predetermines the motor position and divide for a segmentation, wherein, the second predetermines a quantity and is greater than first predetermine quantity.
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