A hidden exterior door handle travel, current threshold calibration and correction method

Abstract

The present invention provides a method for calibrating the travel and current threshold of a hidden exterior door handle, which belongs to the technical field of automobile parts and records the current S o , S c ,I o ,I c Calculate the mean value S of each group of collected values ov , S cv ,I ov ,I cv , compared with S ov With S cv If the difference between the two is large, the installation needs to be rechecked; if the difference between the two is not large, the mean value S of the total stroke will pop up ov The mean value of the total retracted stroke S cv The smaller value in is reduced to get S o , S c The calibration value of I ov ,I cv Set to I o ,I c A method for calibrating the stroke and current threshold of a hidden external door handle, if the stop current value of pop-up and retraction does not reach the set threshold, the total retraction stroke is increased and the total pop-up stroke remains unchanged; when the pop-up or retraction stop current value reaches the threshold current, the corresponding stroke setting value is reduced. The beneficial effects of the present invention are: the external door handle can be calibrated and corrected without manual calibration, saving the cost of manual correction.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts, and relates to a method for calibrating a hidden external door handle stroke and a current threshold, and also relates to a method for correcting a hidden external door handle stroke and a current threshold. Background Art

[0002] With the advancement of science and technology and the improvement of public aesthetic needs, automobiles are developing in the direction of simple lines, intelligence, and high-end. The traditional hand-button exterior door handles are limited by factors such as structure, appearance, and function, which seriously affects the aesthetics, intelligence, and high-end of the entire vehicle. For this reason, automobile exterior door handles are developing in the direction of hidden and intelligent.

[0003] At present, the position of hidden car exterior door handles is mainly controlled by methods such as Hall sensors and motor current. When the Hall count or motor current reaches a set threshold range, the hidden car exterior door handle is considered to be fully extended or fully retracted.

[0004] Among them, the count value and threshold value need to be tested and calibrated under various working conditions. The threshold range will be different under different temperature, humidity and other conditions. At the same time, due to factors such as environmental noise, device wear and aging, the hidden car exterior door handle cannot be fully extended or fully retracted, and it needs to be calibrated and corrected regularly; in short, it is necessary to calibrate the hidden car exterior door handle first, and then calibrate it according to the calibration results.

[0005] In the prior art, it is impossible to automatically calibrate and correct the external door handle stroke and current threshold. Even if calibration and correction are required, they usually need to be performed manually, which is very troublesome. Summary of the invention

[0006] The purpose of the present invention is to address the above-mentioned problems existing in the prior art, and to propose a method for calibrating the travel and current threshold of a hidden external door handle, and also to propose a method for correcting the travel and current threshold of a hidden external door handle.

[0007] The object of the present invention can be achieved by the following technical solution: A method for calibrating the travel and current threshold of a hidden exterior door handle, comprising the following steps:

[0008] S1: Save the external door handle stroke, reaching the limit current threshold, external door handle operation times, and fault times in the chip, where the external door handle stroke S includes the total pop-up stroke S o , total retracted stroke S c , the limit current threshold I includes the pop-up current threshold I o , retraction current threshold I c ;

[0009] S2: The exterior door handle is powered on and runs. If the number of runs is detected to be zero, the calibration process will be automatically entered.

[0010] S3: The outer door handle pops out and retracts inward, and the Hall and current signals are collected. When it is detected that the Hall count is no longer accumulated or the current has a sudden change, the operation stops, and the current Hall count value and current value are recorded to obtain the current S o , S c ,I o ,I c The collection value of

[0011] S4: Repeat step S3 multiple times and calculate the mean S of each group of collected values ov , S cv ,I ov ,I cv , compared with S ov With S cv If the difference between the two is large, the installation needs to be rechecked; if the difference between the two is not large, the mean value S of the total stroke will pop up ov The mean value S of the total retracted stroke cv The smaller value in is reduced to get S o , S c The calibration value of I ov ,I cv Set to I o ,I c The calibration value of

[0012] S5: Set the calibration value S o , S c ,I o ,I c Write to chip and save.

[0013] Preferably, in step S2, since the outer door handle stroke S, the limit current threshold I, the number of operations and the number of faults are not calibrated, the outer door handle stroke S, the limit current threshold I, the number of operations and the number of faults are all zero.

[0014] Preferably, in step S3, the outer door handle pops outward, collects Hall and current signals, and stops running when it is detected that the Hall count is no longer accumulated within a preset time or the current has a preset multiple mutation, and records the current Hall count value S o1 And the current value I o1 ; The outer door handle retracts inward, collects Hall and current signals, and stops running when it detects that the Hall count is no longer accumulated within the preset time or the current has a preset multiple mutation, and records the current Hall count value S c1 And the current value I c1 .

[0015] Preferably, in step S4, the average value S of the total ejection stroke is compared.ov The mean value S of the total retracted stroke cv When |S ov -S cv |>10, recheck the installation; if |S ov -S cv |≤10,S ov -S cv >0, let S o =S c =S cv -3,I c =I cv , I o =I ov ; If |S ov -S cv |≤10,S ov -S cv <0, let S o =S c =S ov -3,I c =I cv , I o =I ov .

[0016] A method for calibrating the travel and current threshold of a hidden exterior door handle is also provided, comprising the following steps:

[0017] S1: Save the external door handle stroke, reaching the limit current threshold, external door handle operation times, and fault times in the chip, where the external door handle stroke S includes the total pop-up stroke S o , total retracted stroke S c , the limit current threshold I includes the pop-up current threshold I o , retraction current threshold I c ;

[0018] S2: The external door handle is powered on and runs. If the number of runs is detected to be non-zero, the data stored in the chip is read.

[0019] S3: The outer door handle pops outward and retracts inward, and the Hall and current signals are collected. When it is detected that the Hall count is no longer accumulated or the current has a sudden change, the operation stops, and the current Hall count value and current value are recorded;

[0020] S4: Compare the Hall and current count values. If the stop current values ​​of the ejection and retraction do not reach the set threshold, the total retraction stroke is increased, and the total ejection stroke remains unchanged. When the ejection or retraction stop current value reaches the threshold current, the corresponding stroke setting value is reduced. If the corresponding actual stroke count deviates too much from the set value at this time, it is considered that there is an error, and the number of errors is accumulated. When the accumulated number of errors reaches a certain level, an error message is sent to the BCM to prompt the owner to repair the components. At the same time, the number of operations is increased by 1.

[0021] S5: After the exterior door handle is fully retracted, the correction value is written into the chip for storage.

[0022] Preferably, in step S3, the outer door handle pops outward, the Hall and current signals are collected, and the count value is detected to be greater than or equal to S o Or the current is greater than or equal to I o Stop running and record the current Hall counting value S oo And the current value I oo ; The outer door handle retracts inward, collects Hall and current signals, and detects that the count value is greater than or equal to S c , or the current is greater than or equal to I c Stop running and record the current Hall counting value S cc And the current value I cc .

[0023] Preferably, in step S4, the current value I oo ,I cc With the set value I o and I c For comparison, the current value I oo and I cc None of them reached the calibration threshold I o and I c , then the total retracted stroke is extended by one unit, that is, S c =S c +1; current value I oo and I cc One item reaches the calibration threshold I o and I c , and the corresponding actual stroke count at this time deviates from the set value by more than 20, then the fault number Error=Error+1, and the fault number Error≥10 will send an error message to the BCM; the current value I oo Reaching threshold I o , then refresh the pop-up itinerary S o =S oo -3; current value I cc Reaching threshold I c , then refresh the retracted stroke S c =S cc-3; number of runs Count = Count + 1.

[0024] Preferably, step S6 is also included: when the system is powered on and detects that the operation number Count ≥ 1000, the operation number Count is reset to zero, and the system will automatically run the calibration program before the next car exterior door handle pops out, and the fault number Error is reset to zero.

[0025] Preferably, in step S5, the correction value S o , S c ,I c ,I o , running times Count, and fault times Error values ​​are written into the chip for storage.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. After the exterior door handle is installed, the calibration program will be automatically run without setting the stroke and threshold, and the calibration results will be saved in the chip. No manual calibration is required, saving manual calibration costs.

[0028] 2. After each operation of the hidden car exterior door handle, the deviation between the actual collected count value and current value and the calibration value is compared and corrected, which solves the problem of not being able to fully retract.

[0029] 3. It can realize calibration or correction according to the number of detected operations, which greatly improves the degree of intelligence and automation.

[0030] 4. When the working times reach the preset value, calibration will be performed automatically to avoid regular manual inspection and correction problems.

[0031] 5. When there is a large deviation between the sampling value and the calibration value, an error warning will be automatically issued, prompting you to replace the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a diagram for selecting the travel, threshold calibration and correction function modules of the intelligent hidden automobile exterior door handle of the present invention;

[0033] Figure 2 This is a block diagram of the travel and threshold calibration principle of the intelligent hidden automobile exterior door handle of the present invention;

[0034] Figure 3 The invention discloses a block diagram of the travel and threshold correction principle of the intelligent hidden automobile exterior door handle. DETAILED DESCRIPTION

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0036] like Figure 1 , Figure 2 As shown, a method for calibrating the travel and current threshold of a hidden exterior door handle comprises the following steps:

[0037] S1: Save the external door handle stroke, reaching the limit current threshold, external door handle operation times, and fault times in the chip, where the external door handle stroke S includes the total pop-up stroke S o , total retracted stroke S c , the limit current threshold I includes the pop-up current threshold I o , retraction current threshold I c ;

[0038] S2: The exterior door handle is powered on and runs. If the number of runs is detected to be zero, the calibration process will be automatically entered.

[0039] S3: The outer door handle pops out and retracts inward, and the Hall and current signals are collected. When it is detected that the Hall count is no longer accumulated or the current has a sudden change, the operation stops, and the current Hall count value and current value are recorded to obtain the current S o , S c ,I o ,I c The collection value of

[0040] S4: Repeat step S3 multiple times and calculate the mean S of each group of collected values ov , S cv ,I ov ,I cv , compared with S ov With S cv If the difference between the two is large, the installation needs to be rechecked; if the difference between the two is not large, the mean value S of the total stroke will pop up ov The mean value S of the total retracted stroke cv The smaller value in is reduced to get S o , S c The calibration value of I ov ,I cv Set to I o ,I c The calibration value of

[0041] S5: Set the calibration value S o , S c ,I o ,I c Write to chip and save.

[0042] The intelligent hidden exterior door is a door handle that can be opened outward and retracted inward. The S o , S c ,I o,I c The calibration value (i.e. the set value) can be used for the calibration of the intelligent hidden exterior door. After the exterior door handle is installed, the calibration program will be automatically run without setting the stroke and threshold, and the calibration result will be saved in the chip. There is no need for manual calibration, thus saving the cost of manual calibration.

[0043] The calibration method first needs to save 4 sets of parameters in the chip: the travel of the outer door handle S, the limit current threshold I, the number of times the outer door handle runs Count, and the number of faults Error. Before calibration, the outer door handle needs to be assembled and then powered on for testing. During calibration, it is necessary to repeatedly collect S o , S c ,I o ,I c The value of (in actual calibration, it can be repeatedly collected 5 times or more), and then the average value S is calculated ov , S cv ,I ov ,I cv , then we need to compare S ov With S cv If the average value of the total pop-up stroke is significantly different from the average value of the total retracted stroke, it indicates that there is a problem with the assembly of the exterior door handle, because the total pop-up stroke and the total retracted stroke of the exterior door handle that can be popped out and retracted normally must be close. ov With S cv If the difference is not large, take the smaller value of the two, and then fine-tune the smaller value to reduce it by a certain value as S o With S c The calibration value, that is, S o The calibration value is equal to S c The calibration value of I ov As I o The calibration value of I cv As I c Finally, the calibration value is written into the chip for storage.

[0044] Preferably, in step S2, since the outer door handle stroke S, limit current threshold I, operation times and fault times are not calibrated, the outer door handle stroke S, limit current threshold I, operation times and fault times are all zero. The outer door handle needs to enter the calibration process when it is operated for the first time, so the operation times of the outer door handle need to be detected first, and when the operation times are zero, the calibration process is automatically entered.

[0045] Preferably, in step S3, the outer door handle pops outward, collects Hall and current signals, and stops running when it is detected that the Hall count is no longer accumulated within a preset time or the current has a preset multiple mutation, and records the current Hall count value S o1 And the current value Io1 ; The outer door handle retracts inward, collects Hall and current signals, and stops running when it detects that the Hall count is no longer accumulated within the preset time or the current has a preset multiple mutation, and records the current Hall count value S c1 And the current value I c1 .

[0046] When the outer door handle pops out to collect Hall and current signals, if it is detected that the Hall count no longer accumulates within 0.3s (not limited to 0.3s, it can also be other time units), or the current suddenly increases by 3 times (not limited to 3 times), the operation will be stopped; when the outer door handle retracts inward to collect Hall and current signals, if it is detected that the Hall count no longer accumulates within 1s (not limited to 1s, it can also be other time units), or the current suddenly increases by 3 times (not limited to 3 times), the operation will be stopped.

[0047] Preferably, in step S4, the average value S of the total ejection stroke is compared. ov The mean value S of the total retracted stroke cv When |S ov -S cv |>10, recheck the installation; if |S ov -S cv |≤10,S ov -S cv >0, let S o =S c =S cv -3,I c =I cv , I o =I ov ; If |S ov -S cv |≤10,S ov -S cv <0, let S o =S c =S ov -3,I c =I cv , I o =I ov .

[0048] It should be pointed out that in this method, the total ejection stroke S of the outer door handle is collected by Hall counting. o And the total retracted stroke S c , so the measured value is the Hall count value, not the actual distance (such as centimeters). The Hall count value is proportional to the actual distance, and the ratio of the two is a constant. Therefore, in the above-mentioned S o =S c =S cv -3 or S o =Sc =S ov In -3, -3 means the Hall count value is reduced by 3 units.

[0049] like Figure 1 , Figure 3 As shown, a method for calibrating the travel and current threshold of a hidden exterior door handle comprises the following steps:

[0050] S1: Save the external door handle stroke, reaching the limit current threshold, external door handle operation times, and fault times in the chip, where the external door handle stroke S includes the total pop-up stroke S o , total retracted stroke S c , the limit current threshold I includes the pop-up current threshold I o , retraction current threshold I c ;

[0051] S2: The external door handle is powered on and runs. If the number of runs is detected to be non-zero, the data stored in the chip is read.

[0052] S3: The outer door handle pops outward and retracts inward, and the Hall and current signals are collected. When it is detected that the Hall count is no longer accumulated or the current has a sudden change, the operation stops, and the current Hall count value and current value are recorded;

[0053] S4: Compare the Hall and current count values. If the stop current values ​​of the ejection and retraction do not reach the set threshold, the total retraction stroke is increased, and the total ejection stroke remains unchanged. When the ejection or retraction stop current value reaches the threshold current, the corresponding stroke setting value is reduced. If the corresponding actual stroke count deviates too much from the set value at this time, it is considered that there is an error, and the number of errors is accumulated. When the accumulated number of errors reaches a certain level, an error message is sent to the BCM to prompt the owner to repair the components. At the same time, the number of operations is increased by 1.

[0054] S5: After the exterior door handle is fully retracted, the correction value is written into the chip for storage.

[0055] The correction process is started when it is detected that the number of times the outer door handle is operated is greater than or equal to 1, and the correction method collects the Hall count value and current value, which are then compared with the set value, and correction is performed based on the comparison result. Finally, the correction value is written into the chip for storage; after each operation of the hidden car outer door handle, the deviation between the actual collected count value and current value and the set value is compared and corrected, thus solving the problem of being unable to fully retract.

[0056] Preferably, in step S3, the outer door handle pops outward, the Hall and current signals are collected, and the count value is detected to be greater than or equal to S o Or the current is greater than or equal to I o Stop running and record the current Hall counting value S oo And the current value Ioo ; The outer door handle retracts inward, collects Hall and current signals, and detects that the count value is greater than or equal to S c , or the current is greater than or equal to I c Stop running and record the current Hall counting value S cc And the current value I cc .

[0057] When the outer door handle pops open and retracts, the current total pop-up stroke S can be acquired. oo , Current total retracted stroke S cc 、Current pop-up current value I oo , Current retraction current value I cc .

[0058] Preferably, in step S4, the current value I oo ,I cc With the set value I o and I c For comparison, the current value I oo and I cc None of them reached the set threshold I o and I c , then the total retracted stroke is extended by one unit, that is, S c =S c +1; current value I oo and I cc One item reaches the set threshold I o and I c , and the corresponding actual stroke count at this time deviates from the set value by more than 20, then the fault number Error=Error+1, and the fault number Error≥10 will send an error message to the BCM; the current value I oo Reaching threshold I o , then refresh the pop-up itinerary S o =S oo -3; current value I cc Reaching threshold I c , then refresh the retracted stroke S c =S cc -3; number of runs Count = Count + 1.

[0059] In this step, if I oo Less than I o And I cc Less than I c , then it means that the actual total retraction stroke is too small and needs to be increased in the set value S c Based on the length of one unit, the correction value S c = Setting value S c +1.

[0060] If the current value Ioo Reaching the set threshold I o , but the current pop-up total travel S oo With the setting value S o If the difference between the current value I cc Reaching the set threshold I c , but the current pop-up total travel S cc With the setting value S c If the difference is large, an error message will be sent to BCM; therefore, when there is a large deviation between the sampled value and the set value, an error warning will be automatically issued, prompting you to replace the device.

[0061] If I oo Greater than or equal to I o , and S oo With S o If the deviation is not large, it means that the current total ejection stroke S oo The value of S is too large. oo After reduction, it is used as the correction value S o Similarly, if I cc Greater than or equal to I c , and S cc With S c If the deviation is not large, it means that the current total retracted stroke S cc The value of S is too large. cc After reduction, it is used as the correction value S c .

[0062] It should be pointed out that in this method, the total ejection stroke S of the outer door handle is collected by Hall counting. o And the total retracted stroke S c , so the measured value is the Hall count value, not the actual distance (such as centimeters). The Hall count value is proportional to the actual distance, and the ratio of the two is a constant. Therefore, in the above-mentioned S c =S c +1 or S o =S oo -3 or S c =S cc In -3, +1 means increasing the Hall count value by 1 unit, and -3 means decreasing the Hall count value by 3 units.

[0063] Preferably, it also includes step S6: when the system detects that the number of operations Count ≥ 1000 when powered on, the number of operations Count is reset to zero, and the system automatically runs the calibration program before the next car exterior door handle pops out, and resets the number of faults Error to zero. When the number of operations reaches a predetermined value, a calibration is automatically performed to avoid regular manual inspection and correction problems.

[0064] Preferably, in step S5, the correction value S o , S c ,I c ,I o , running times Count, and fault times Error values ​​are written into the chip for storage.

[0065] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0066] In addition, in the present invention, the descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0067] In the present invention, unless otherwise clearly stipulated and limited, the terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited.

[0068] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A method for calibrating the travel and current threshold of a hidden exterior door handle, characterized in that: The steps include: S1: Save the external door handle stroke, reaching the limit current threshold, external door handle operation times, and fault times in the chip, where the external door handle stroke S includes the total pop-up stroke S o , total retracted stroke S c , the limit current threshold I includes the pop-up current threshold I o , retraction current threshold I c ; S2: The exterior door handle is powered on and runs. If the number of runs is detected to be zero, the calibration process will be automatically entered. S3: The outer door handle pops out and retracts inward, and the Hall and current signals are collected. When it is detected that the Hall count is no longer accumulated or the current has a sudden change, the operation stops, and the current Hall count value and current value are recorded to obtain the current S o , S c ,I o ,I c The collection value of S4: Repeat step S3 multiple times and calculate the mean S of each group of collected values ov , S cv ,I ov ,I cv , compared with S ov With S cv If the difference between the two is large, the installation needs to be rechecked; if the difference between the two is not large, the mean value S of the total stroke will pop up ov The mean value of the total retracted stroke S cv The smaller value in is reduced to get S o , S c The calibration value of I ov ,I cv Set to I o ,I c The calibration value of S5: Set the calibration value S o , S c ,I o ,I c Write to chip for storage; In step S4, the average value S of the total ejection stroke is compared. ov The mean value of the total retracted stroke S cv When |S ov -S cv |>10, recheck the installation; if |S ov -S cv |≤10,S ov -S cv >0, let S o =S c = S cv -3,I c =I cv , I o =I ov ; If |S ov -S cv |≤10,S ov -S cv <0, let S o =S c =S ov -3,I c =I cv , I o =I ov .

2. A method for calibrating the travel and current threshold of a hidden exterior door handle as claimed in claim 1, characterized in that: In step S2, since the outer door handle stroke S, the limit current threshold I, the number of operations and the number of faults are not calibrated, the outer door handle stroke S, the limit current threshold I, the number of operations and the number of faults are all zero.

3. A method for calibrating the travel and current threshold of a hidden exterior door handle as claimed in claim 1, characterized in that: In step S3, the outer door handle pops outward, collects Hall and current signals, and stops running when it is detected that the Hall count is no longer accumulated within a preset time or the current has a preset multiple mutation, and records the current Hall count value S o1 And the current value I o1 ; The outer door handle retracts inwards, collects Hall and current signals, and stops running when it detects that the Hall count is no longer accumulated within the preset time or the current has a preset multiple mutation, and records the current Hall count value S c1 And the current value I c1 .

4. A method for calibrating the travel and current threshold of a hidden exterior door handle, characterized in that: The steps include: S1: Save the external door handle stroke, reaching the limit current threshold, external door handle operation times, and fault times in the chip, where the external door handle stroke S includes the total pop-up stroke S o , total retracted stroke S c , the limit current threshold I includes the pop-up current threshold I o , retraction current threshold I c ; S2: The external door handle is powered on and runs. If the number of runs is detected to be non-zero, the data stored in the chip is read. S3: The outer door handle pops outward and retracts inward, and the Hall and current signals are collected. When it is detected that the Hall count is no longer accumulated or the current has a sudden change, the operation stops, and the current Hall count value and current value are recorded; S4: Compare the Hall and current count values. If the stop current values ​​of the ejection and retraction do not reach the set threshold, the total retraction stroke is increased, and the total ejection stroke remains unchanged. When the ejection or retraction stop current value reaches the set threshold, the corresponding stroke setting value is reduced. If the corresponding actual stroke count deviates too much from the set value at this time, it is considered that there is an error, and the number of errors is accumulated. When the accumulated number of errors reaches a certain level, an error message is sent to the BCM to prompt the owner to repair the components. At the same time, the number of operations is increased by 1. S5: After the exterior door handle is fully retracted, the correction value is written into the chip for storage.

5. A method for calibrating the travel and current threshold of a hidden exterior door handle as claimed in claim 4, characterized in that: In step S3, the outer door handle pops outward, the Hall and current signals are collected, and the count value is detected to be greater than or equal to S o Or the current is greater than or equal to I o Stop running and record the current Hall counting value S oo And the current value I oo ; The outer door handle retracts inward, collects Hall and current signals, and detects that the count value is greater than or equal to S c , or the current is greater than or equal to I c Stop running and record the current Hall counting value S cc And the current value I cc .

6. A method for calibrating the travel and current threshold of a hidden exterior door handle as claimed in claim 5, characterized in that: In step S4, the current value I oo ,I cc With the set value I o and I c For comparison, the current value I oo and I cc None of them reached the set value I o and I c , then the total retracted stroke is extended by one unit, that is, S c =S c +1; current value I oo and I cc One item reaches the set value I o and I c , and the corresponding actual stroke count at this time deviates from the set value by more than 20, then the fault number Error = Error+1, and the fault number Error≥10 will send an error message to the BCM; the current value I oo Reaching threshold I o , then refresh the pop-up itinerary S o =S oo -3; current value I cc Reaching threshold I c , then refresh the retracted stroke S c =S cc -3; running times Count = Count+1.

7. A method for calibrating the travel and current threshold of a hidden exterior door handle as claimed in claim 6, characterized in that: It also includes step S6: when the system is powered on and detects that the operation number Count≥1000, the operation number Count is reset to zero, and the system will automatically run the calibration program before the next car outer door handle pops out, and the fault number Error is reset to zero.

8. A method for calibrating the travel and current threshold of a hidden exterior door handle as claimed in claim 6, characterized in that: In step S5, the correction value S o , S c ,I c ,I o , running times Count, and fault times Error values ​​are written into the chip for storage.

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