Battery reselection method for new energy automobile battery swap station

Abstract

The invention discloses a battery reselection method for a new energy automobile battery swap station, and relates to the technical field of battery swap stations. When the battery replacement station begins to replace the battery, if the battery locked through intelligent bin selection is abnormal in the process of taking out the battery, secondary or multiple times of selection is automatically performed through the battery reselection strategy to continue to replace the battery, so that the probability of abnormal battery replacement when the battery replacement begins is reduced, the waiting time of a vehicle owner on the station is shortened, and the battery replacement experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery swap stations, and in particular to a battery reselection method for a new energy vehicle battery swap station. Background Art

[0002] With the promotion of the unattended mode of new energy battery swap stations, reducing the failure rate of battery swaps at battery swap stations has become a key issue that the industry needs to solve urgently. At present, mainstream battery swap stations are mainly composed of key parts such as parking platforms, RGVs (automatic guided vehicles), stackers, and battery warehouses. The main function of the battery warehouse is to store batteries and realize the charging and discharging process of the batteries. In actual battery swap operations, the battery swap station uses a one-button battery swap function to quickly locate the battery that needs to be replaced based on the intelligent warehouse selection strategy. However, since the battery compartment is equipped with key equipment such as an electric push rod for controlling the lifting and lowering of the electric plug and a battery in-place detection sensor, failures may occur in the initial stage of the battery swap process.

[0003] Therefore, it is particularly important to develop an efficient battery reselection strategy, which aims to reduce the probability of failure in the initial stage of battery replacement and reduce the waiting time of car owners at battery replacement stations, thereby improving the overall battery replacement service experience. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a battery reselection method for a new energy vehicle battery swap station, which effectively reduces the probability of failure in the initial stage of battery swapping and reduces the waiting time of car owners at the battery swap station, thereby improving the overall battery swap service experience.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0006] A battery reselection method for a new energy vehicle battery replacement station comprises the following steps:

[0007] S1, start the power replacement program, and the electric push rod at the designated position performs the rising action;

[0008] S2, when the electric push rod rises to the predetermined position, if the upper sensor can sense normally, the process will go to step S6; if it is detected that the electric push rod rises abnormally, the next step will be executed;

[0009] S3, determine whether the current number of battery reselection times is less than a preset value n, if <n, proceed to the next step; if ≥n, terminate the battery replacement process and output an alarm "no available battery";

[0010] S4. Check whether there are other available batteries in the compartment. If so, proceed to the next step. If not, terminate the battery replacement process and output an alarm "no available battery";

[0011] S5, lock the selected battery, control the electric push rod of the position to rise, and the process returns to step S2;

[0012] S6, the stacker moves to the low position of the designated bin, the fork extends and rises, lifts the battery and disengages it from the positioning pin;

[0013] S7, if the battery is not detected by the in-position sensor at the lower position of the battery compartment, the process jumps to step S12; if the battery can be detected, proceed to the next step;

[0014] S8, put the battery back to the low position. If the in-position sensor can detect the battery at this time, proceed to the next step; if not, terminate the battery replacement process and output an alarm "battery in position x is abnormal"; x is the battery position number;

[0015] S9, the stacker fork retracts and enters the second stage of battery reselection judgment to determine whether the number of battery reselections in the second stage is less than n. If < n, proceed to the next step; if ≥ n, output an alarm "no available battery";

[0016] S10, judging whether there are other available batteries in the compartment, if so, proceeding to the next step; if not, outputting an alarm "no available batteries";

[0017] S11, the stacker moves to the lower position of the reselected battery bin, and increases the number of second-stage reselected batteries by 1, and the process returns to step S6;

[0018] S12, the stacker fork retracts, and the battery is successfully removed.

[0019] Furthermore, in step S2, the abnormal rise of the electric push rod is manifested as the rise exceeding the preset time, which may be due to too small floating amount between the battery and the electric plug, or the rise timeout caused by damage to the upper and lower in-place sensor of the electric push rod.

[0020] Furthermore, in step S4 and step S7, the available battery is a battery with a remaining power greater than 90%.

[0021] Furthermore, the in-position sensor includes a far-compartment in-position sensor and a near-compartment in-position sensor respectively arranged on both sides of the battery compartment.

[0022] Furthermore, in step S7, if neither the far warehouse presence sensor nor the near warehouse presence sensor detects a battery, the process jumps to step S12; if both the far warehouse presence sensor and the near warehouse presence sensor detect a battery, or one of them detects a battery, then proceed to the next step S8.

[0023] Furthermore, in step S8, if both the far warehouse presence sensor and the near warehouse presence sensor can detect the battery, proceed to the next step S9; if neither the far warehouse presence sensor nor the near warehouse presence sensor detects the battery, or only one of them detects the battery, an alarm is output.

[0024] Furthermore, in step S5, if the electric push rod has an abnormality during the rising cycle reselection process, the position will be locked, the position will be excluded from the "available battery" list, and the operation and maintenance department will be notified for processing. After completing the test and processing, the operation and maintenance personnel will release the locked state of the position.

[0025] Furthermore, in step S7, if the in-place sensor can sense the battery, the bin is locked, the bin is excluded from the "available battery" list, and the operation and maintenance department is notified for processing. After completing the test and processing, the operation and maintenance personnel release the lock state of the bin.

[0026] Furthermore, the electric push rod includes a synchronously moving electric plug, which is used to connect to a battery interface for charging the battery; when the electric push rod is in a high position, it is determined that the electric plug has been unplugged, and the battery can be removed; when the electric push rod is in a low position, it is determined that the electric plug has not been unplugged, and the battery cannot be removed.

[0027] Furthermore, the battery compartment is provided with a high position sensor and a low position sensor, the high position sensor is used to detect whether the electric push rod is located in a high position, and the low position sensor is used to detect whether the electric push rod is located in a low position.

[0028] The beneficial technical effects of the present invention are:

[0029] By implementing the battery reselection method of the present invention, the efficiency and reliability of battery replacement at the battery replacement station can be significantly improved. When the battery replacement starts at the battery replacement station, if the battery locked by the intelligent selection bin has an abnormality during the removal process, it will automatically select to continue the battery replacement for a second or multiple times, thereby reducing the probability of abnormal battery replacement at the beginning of the battery replacement, reducing the waiting time of the car owner at the station, and improving the battery replacement experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic flow chart of the battery reselection method of the present invention;

[0031] Figure 2 is a schematic diagram of a battery compartment of the present invention;

[0032] Figure 3 is a schematic diagram of a battery compartment of the present invention (another view);

[0033] The parts in the accompanying drawings are marked as follows:

[0034] 1. Positioning pin; 2. Remote warehouse in-position sensor; 3. Remote warehouse in-position sensor; 4. Electric plug; 5. High position sensor; 6. Low position sensor. DETAILED DESCRIPTION

[0035] In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples. The following examples are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0036] This specific embodiment discloses in detail a battery reselection method for a new energy vehicle battery replacement station, such as Figures 1 to 3 As shown, the following steps are included:

[0037] S1, start the power replacement program, and the electric push rod at the designated position performs the rising action;

[0038] S2, when the electric push rod rises to the predetermined position, if the upper sensor can sense normally, the process will go to step S6; if it is detected that the electric push rod rises abnormally, the next step will be executed;

[0039] S3, determine whether the current number of battery reselection times is less than a preset value of 3, if <3, proceed to the next step; if ≥3, terminate the battery replacement process and output an alarm "no available battery";

[0040] S4. Check whether there are other available batteries in the compartment. If so, proceed to the next step. If not, terminate the battery replacement process and output an alarm "no available battery";

[0041] S5, lock the selected battery, control the electric push rod of the position to rise, and the process returns to step S2;

[0042] S6, the stacker moves to the lower position of the designated bin, the fork extends and rises, lifts the battery and detaches it from the positioning pin 1;

[0043] S7, if at this time, the far bin presence sensor 2 and the near bin presence sensor 3 at the lower position of the battery bin do not detect the battery, the process jumps to step S12; if both the far bin presence sensor and the near bin presence sensor detect the battery, or one of them detects the battery, proceed to the next step; if only one can detect the battery, there is a risk of battery tilting, and the battery cannot be taken out of the bin;

[0044] S8, put the battery back to the low position. If both the far bin presence sensor and the near bin presence sensor can detect the battery, proceed to the next step. If neither the far bin presence sensor nor the near bin presence sensor detects the battery, or only one of them detects the battery, terminate the battery replacement process and output an alarm "battery in bin x is abnormal", where x is the battery bin number.

[0045] S9, the stacker fork retracts and enters the second stage of battery reselection judgment to determine whether the number of battery reselections in the second stage is less than 3. If <3, proceed to the next step; if ≥3, output an alarm "no available battery";

[0046] S10, judging whether there are other available batteries in the compartment, if so, proceeding to the next step; if not, outputting an alarm "no available batteries";

[0047] S11, the stacker moves to the lower position of the reselected battery bin, and increases the number of second-stage reselected batteries by 1, and the process returns to step S6;

[0048] S12, the stacker fork retracts, and the battery is successfully removed.

[0049] Specifically, in step S2, the abnormal rise of the electric push rod is manifested as the rise exceeding the preset time, which may be due to the small floating amount between the battery and the electric plug, or the rise timeout caused by the damage of the upper and lower in-place sensor of the electric push rod.

[0050] Specifically, in step S4 and step S7, the available battery is a battery with a remaining power greater than 90%.

[0051] Specifically, the number of battery reselections is defined as follows: when the first battery automatically selected by the system encounters an abnormality during the actual replacement process, a second selection will be made. If the second selected battery also has a problem, a third selection will be made. The initial setting of the number of reselections is three, however, this value is not fixed and can theoretically be adjusted to four, five or other values.

[0052] Specifically, when reselecting a battery, multiple factors including power must be considered. For example, the system requires that the selected battery should have a power level of 95%. If the first battery cannot be installed in the vehicle due to other factors, the reselected battery should at least meet the basic power requirements, that is, the power level should be greater than 90%. Assuming that the power level of all batteries in the battery compartment is about 10%, there is no battery that can be replaced.

[0053] Specifically, in step S5, if the electric push rod has an abnormality during the rising cycle reselection process, the position will be locked, and the position will be excluded from the "available battery" list. The operation and maintenance department will be notified through the work order system for processing. After completing the test and processing, the operation and maintenance personnel will release the locked state of the position.

[0054] Specifically, in step S7, if the in-place sensor can sense the battery, the bin is locked and excluded from the "available battery" list. The operation and maintenance department is notified through the work order system for processing. After completing the test and processing, the operation and maintenance personnel release the lock state of the bin.

[0055] Specifically, the electric push rod includes a synchronously moving electric plug 4, which is used to connect to the battery interface for battery charging; when the electric push rod is in a high position, it is determined that the electric plug has been unplugged, and the battery can be removed; when the electric push rod is in a low position, it is determined that the electric plug has not been unplugged, and the battery cannot be removed.

[0056] Specifically, the battery compartment is provided with a high position sensor 5 and a low position sensor 6, the high position sensor is used to detect whether the electric push rod is located at a high position, and the low position sensor is used to detect whether the electric push rod is located at a low position.

[0057] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A battery reselection method for a new energy vehicle battery replacement station, characterized in that: The following steps are involved: S1, start the power replacement program, and the electric push rod at the designated position performs the rising action; S2, when the electric push rod rises to the predetermined position, if the upper sensor can sense normally, the process will go to step S6; if it is detected that the electric push rod rises abnormally, the next step will be executed; S3, determine whether the current number of battery reselection times is less than a preset value n, if <n, proceed to the next step; If ≥n, the battery replacement process is terminated and an alarm "no available battery" is output; S4. Check whether there are other available batteries in the compartment. If so, proceed to the next step; if not, terminate the battery replacement process and output an alarm "no available battery"; S5, lock the selected battery, control the electric push rod of the position to rise, and the process returns to step S2; S6, the stacker moves to the low position of the designated bin, the fork extends and rises, lifts the battery and detaches it from the positioning pin; S7, if the battery is not detected by the in-position sensor at the lower position of the battery compartment, the process jumps to step S12; if the battery can be detected, proceed to the next step; S8, put the battery back to the low position. If the in-position sensor can detect the battery at this time, proceed to the next step; If not, the battery replacement process is terminated and an alarm "battery in position x is abnormal" is output; S9, the stacker fork retracts and enters the second stage of battery reselection judgment to determine whether the number of battery reselections in the second stage is less than n. If <n, proceed to the next step; If ≥n, then output alarm "no available battery"; S10, determining whether there are other available batteries in the compartment, if so, proceeding to the next step; If it does not exist, then output the alarm "No battery available"; S11, the stacker moves to the lower position of the reselected battery bin, and increases the number of second-stage reselected batteries by 1, and the process returns to step S6; S12, the stacker fork retracts, and the battery is successfully removed.

2. The battery reselection method of a new energy vehicle battery replacement station according to claim 1 is characterized in that: In step S2, the abnormal rise of the electric push rod is manifested as the rise exceeding the preset time.

3. The battery reselection method of a new energy vehicle battery replacement station according to claim 1 is characterized in that: In step S4 and step S7, the available battery is a battery with a remaining power greater than 90%.

4. The battery reselection method of a new energy vehicle battery replacement station according to claim 1 is characterized in that: The in-position sensor comprises a far-bin in-position sensor and a near-bin in-position sensor respectively arranged on two sides of the battery compartment.

5. A battery reselection method for a new energy vehicle battery replacement station according to claim 4, characterized in that: In step S7, if neither the far warehouse presence sensor nor the near warehouse presence sensor detects a battery, the process jumps to step S12; if both the far warehouse presence sensor and the near warehouse presence sensor detect a battery, or one of them detects a battery, proceed to the next step S8.

6. A battery reselection method for a new energy vehicle battery replacement station according to claim 4, characterized in that: In step S8, if both the far warehouse presence sensor and the near warehouse presence sensor can detect the battery, proceed to the next step S9; if neither the far warehouse presence sensor nor the near warehouse presence sensor detects the battery, or only one of them detects the battery, an alarm is output.

7. A battery reselection method for a new energy vehicle battery replacement station according to claim 1, characterized in that: In step S5, if the electric push rod has an abnormality during the ascending cycle reselection process, the position will be locked, the position will be excluded from the "available battery" list, and the operation and maintenance department will be notified for processing. After completing the test and processing, the operation and maintenance personnel will release the lock state of the position.

8. The battery reselection method of a new energy vehicle battery replacement station according to claim 1, characterized in that: In step S7, if the in-place sensor can sense the battery, the position is locked, the position is excluded from the "available battery" list, and the operation and maintenance department is notified for processing. After completing the test and processing, the operation and maintenance personnel release the lock state of the position.

9. The battery reselection method of a new energy vehicle battery replacement station according to claim 1, characterized in that: The electric push rod includes a synchronously moving electric plug, which is used to connect to a battery interface for charging the battery; when the electric push rod is in a high position, it is determined that the electric plug has been unplugged and the battery can be taken out; when the electric push rod is in a low position, it is determined that the electric plug has not been unplugged and the battery cannot be taken out.

10. The battery reselection method of a new energy vehicle battery replacement station according to claim 9, characterized in that: The battery compartment is provided with a high position sensor and a low position sensor, the high position sensor is used to detect whether the electric push rod is located in a high position, and the low position sensor is used to detect whether the electric push rod is located in a low position.

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