An automatic control circuit for a battery replacement base stand

Abstract

The application discloses a battery replacement base rack automatic control circuit, which comprises a direct-current stabilized power supply, a time relay 1, a time relay 2, an automobile relay, a locking motor, a reversing electromagnetic valve, a battery replacement controller, an offline data recorder and a sensor module; two time relays output control signals by setting different time parameters, simulating the running or stopping in the actual use process of the battery replacement base rack; the automobile relay controls the working state of the locking motor according to the control signal; the reversing electromagnetic valve realizes the reversing control and signal feedback of the hydraulic system of the locking motor according to the control signal; the battery replacement controller detects, collects, analyzes and processes the sensor state signal, the state signal of the reversing electromagnetic valve and the test cumulative number and converts them into CAN signals for output; the offline data recorder collects the CAN signals and stores them for data analysis; and the sensor module detects whether the external mechanical structure is locked or released and outputs the corresponding state signal.

Description

Technical Field

[0001] This invention belongs to the field of reliability bench testing of pneumatic and hydraulic locking mechanical structures, and specifically relates to an automatic control circuit for a battery swapping base bench. Background Technology

[0002] With the increasing popularity of battery swapping for new energy commercial vehicles and the continuous enrichment of battery swapping scenarios, reliable and stable battery swapping packs and battery swapping base systems are particularly important for the market promotion of battery swapping commercial vehicles.

[0003] Currently, the reliability test of the battery swapping base mainly involves adapting the technology to the target vehicle model, performing vehicle-side installation, debugging, and functional testing. After the test is completed, the battery swapping base is installed on the actual new energy battery swapping heavy truck. Along with the functional and reliability verification test of the whole vehicle, the locking and reliability test of the battery swapping base are carried out.

[0004] Disadvantages of existing technology:

[0005] 1. When the battery swapping base is installed on a real vehicle for reliability verification, the verification environment and test process must fully comply with the real vehicle test outline. This results in high installation risk, low flexibility in test adjustments, long verification cycle, and high verification cost.

[0006] 2. The lack of a separate testing and verification environment for the battery swapping base system makes it impossible to conduct timely test adjustments and fault analysis during vehicle reliability verification, and the causes of system test problems and faults are not easy to find and resolve. Summary of the Invention

[0007] To address the aforementioned problems in the existing technology, this invention provides an automatic control circuit for a battery swapping base platform. The technical problem to be solved by this invention is achieved through the following technical solution:

[0008] An automatic control circuit for a battery swapping base platform includes:

[0009] DC regulated power supply, time relay 1, time relay 2, automotive relay, locking motor, reversing solenoid valve, battery swapping controller, offline data logger, and sensor module; among which,

[0010] The DC regulated power supply provides power to the automatic control circuit of the battery swapping base platform by simulating the vehicle's electrical system.

[0011] The time relay 1 and the time relay 2 output control signals by setting different time parameters, periodically control the on and off of the car relay, and output commutation solenoid valve signals to control the working state of the commutation solenoid valve, simulating the operation or stop of the battery swapping base platform in actual use.

[0012] The automotive relay is used to control the working state of the locking motor according to the control signal;

[0013] The reversing solenoid valve is used to adjust its own working state according to the reversing solenoid valve signal, thereby controlling the locking motor to perform corresponding operations;

[0014] The battery swapping controller is used to detect, collect, analyze and process the sensor status signals of the sensor module, the status signals of the commutation solenoid valve, and the cumulative number of tests, and convert them into CAN signals for external output.

[0015] The offline data logger is used to collect the CAN signal output by the battery swapping controller in real time and store it in a memory card for data analysis.

[0016] The sensor module is used to collect and detect whether the external mechanical structure connected to the automatic control circuit of the battery swapping base is locked or released, and output the corresponding status signal.

[0017] In one embodiment of the present invention, the DC regulated power supply, the time relay 1, the time relay 2, the automotive relay, the locking motor, and the reversing solenoid valve constitute an automatic control module; the automatic control module is used to control the battery swapping base frame to perform locking or releasing operations.

[0018] In one embodiment of the present invention, the circuit connection method of the automatic control module includes:

[0019] The 7th interface of the time relay 1 is connected to the positive terminal of the DC regulated power supply, the 5th interface of the time relay 1 is connected to the positive terminal of the DC regulated power supply, the 2nd interface of the time relay 1 is connected to the negative terminal of the DC regulated power supply, and the 8th interface of the time relay 1 is connected to the 8th interface of the time relay 2.

[0020] The 7th interface of the time relay 2 is connected to the positive terminal of the DC regulated power supply, the 5th interface of the time relay 2 is connected to the 85th interface of the automotive relay, the 6th interface of the time relay 2 is connected to the positive terminal of the reversing solenoid valve, and the 2nd interface of the time relay 2 is connected to the negative terminal of the DC regulated power supply.

[0021] The 30 interface of the automotive relay is connected to the positive terminal of the DC regulated power supply, the 87 interface of the automotive relay is connected to the positive terminal of the locking motor, and the 86 interface of the automotive relay is connected to the negative terminal of the DC regulated power supply.

[0022] The negative terminal of the locking motor is connected to the negative terminal of the DC regulated power supply;

[0023] The negative terminal of the commutation solenoid valve is connected to the negative terminal of the DC regulated power supply.

[0024] In one embodiment of the present invention, in the automatic control module, the working state of the automotive relay is controlled by setting the closing and opening time of the time relay 1, thereby controlling the working state of the locking motor.

[0025] In one embodiment of the present invention, in the automatic control module, the working state of the reversing solenoid valve is controlled by setting the closing and opening time of the time relay 2, thereby controlling the locking motor to lock or release.

[0026] In one embodiment of the present invention, the locking motor includes an oil pump motor or an air pump motor.

[0027] In one embodiment of the present invention, the sensor module includes:

[0028] The sensor module for detecting the locking circuit includes: sensor 1, sensor 2, sensor 3, sensor 4, sensor 5 and sensor 6;

[0029] The sensor module for detecting the release circuit includes: sensor 7, sensor 8, sensor 9, sensor 10, sensor 11 and sensor 12.

[0030] In one embodiment of the present invention, the battery swapping controller, the offline data logger, and the sensor module constitute a data monitoring module; the circuit connection method of the data monitoring module includes:

[0031] Sensors 1, 2, and 3 are connected to the IO1 port of the battery swapping controller; Sensors 4, 5, and 6 are connected to the IO2 port of the battery swapping controller.

[0032] Sensors 7, 8, and 9 are connected to port IO3 of the battery swapping controller; sensors 10, 11, and 12 are connected to port IO4 of the battery swapping controller.

[0033] The IO5 port of the battery swapping controller is connected to the 6th interface of the time relay 2 in the automatic control module, and the output port of the battery swapping controller that outputs the CAN signal is connected to the input port of the offline data logger that receives data.

[0034] The beneficial effects of this invention are:

[0035] The present invention provides an automatic control circuit for a battery swapping base platform. This circuit, in conjunction with the locking system and external mechanical structure of the battery swapping base platform, completes the technical solution verification, reliability test logic automatic control, automatic data acquisition, automatic counting, and protection of the battery swapping base platform before vehicle installation. This solves the problems of high risk associated with installing the battery swapping base system on a real vehicle without prior testing, excessively long modification cycles, and limited verification methods. The advantages of this invention are as follows:

[0036] 1. Identify technical risks in advance, verify the feasibility and reliability of circuit and mechanical structure solutions in advance, reduce project implementation risks, and shorten the development cycle;

[0037] 2. By configuring time relay parameters and configurable detection sources, test and control parameters can be flexibly set, improving the flexibility of test schemes, comparing the advantages and disadvantages of different test schemes, and increasing the coverage of the bench test range;

[0038] 3. The embodiments of the present invention can adapt to and meet different types, parameters and purposes of experimental test benches by changing the test setting cycle, changing the battery swapping controller, changing the type of detection source, changing the type of locking motor or changing the external mechanical structure;

[0039] 4. In the embodiments of the present invention, while conducting bench verification, physical controllers and wiring harnesses can be introduced, as well as other vehicle control system modules. While conducting bench system verification, the functions of the controller, wiring harness, and other vehicle control modules can also be verified simultaneously to ensure that they meet the design requirements, thus achieving the goal of simultaneous verification of multiple systems on one bench. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of an automatic control circuit for a battery swapping base frame provided in an embodiment of the present invention;

[0041] Figure 2 A circuit diagram of the automatic control module in an automatic control circuit for a battery swapping base provided in an embodiment of the present invention;

[0042] Figure 3 This is a circuit diagram of the data monitoring module in an automatic control circuit for a battery swapping base provided in an embodiment of the present invention. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Reference Figure 1 This invention provides an automatic control circuit for a battery swapping base platform, comprising:

[0045] DC regulated power supply, time relay 1, time relay 2, automotive relay, locking motor, reversing solenoid valve, battery swapping controller, offline data logger, and sensor module; among which,

[0046] The DC regulated power supply provides power to the automatic control circuit of the battery swapping base platform by simulating the vehicle's electrical system.

[0047] Time relay 1 and time relay 2 output control signals by setting different time parameters, periodically control the on and off of the car relay, and output commutation solenoid valve signals to control the working state of the commutation solenoid valve, simulating the operation or stop of the battery swapping base platform in actual use.

[0048] Automotive relays are used to control the operating state of the locking motor based on control signals.

[0049] The reversing solenoid valve is used to adjust its own working state according to the signal from the reversing solenoid valve, thereby controlling the locking motor to perform corresponding operations;

[0050] The battery swapping controller is used to detect, collect, analyze, and process the sensor status signals from the sensor module, the status signals from the commutation solenoid valve, and the cumulative number of tests, and convert them into CAN signals for external output.

[0051] The offline data logger is used to collect the CAN signal output by the battery swapping controller in real time and store it in a memory card for data analysis.

[0052] The sensor module is used to collect and detect whether the external mechanical structure connected to the automatic control circuit of the battery swapping base is locked or released, and output the corresponding status signal.

[0053] An automatic control circuit for a battery swapping base platform consists of an automatic control module and a data monitoring module. For ease of understanding, the two modules will be explained in detail below.

[0054] The automatic control circuit for the battery swapping base platform provided in this embodiment of the invention, in conjunction with the external mechanical structure and locking system, completes the functions of technical solution verification, reliability testing logic automatic control, automatic data acquisition, automatic counting, and protection of the battery swapping base platform before vehicle installation. The details are as follows:

[0055] I. Automatic Control Module

[0056] The components, including a DC regulated power supply module, time relay 1, time relay 2, automotive relay, locking motor, and commutator solenoid valve, are as follows: Figure 2The automatic control module shown is used to control the battery swapping base frame to perform locking or releasing operations.

[0057] The circuit connection methods for the automatic control module include:

[0058] Connect the 7th terminal of time relay 1 to the positive terminal of the DC regulated power supply, connect the 5th terminal of time relay 1 to the positive terminal of the DC regulated power supply, connect the 2nd terminal of time relay 1 to the negative terminal of the DC regulated power supply, and connect the 8th terminal of time relay 1 to the 8th terminal of time relay 2.

[0059] Connect the 7th pin of time relay 2 to the positive terminal of the DC regulated power supply, connect the 5th pin of time relay 2 to the 85th pin of the automotive relay, connect the 6th pin of time relay 2 to the positive terminal of the reversing solenoid valve, and connect the 2nd pin of time relay 2 to the negative terminal of the DC regulated power supply.

[0060] The 30 terminal of the automotive relay is connected to the positive terminal of the DC regulated power supply, the 87 terminal of the automotive relay is connected to the positive terminal of the locking motor, and the 86 terminal of the automotive relay is connected to the negative terminal of the DC regulated power supply.

[0061] The negative terminal of the locking motor is connected to the negative terminal of the DC regulated power supply;

[0062] The negative terminal of the directional solenoid valve is connected to the negative terminal of the DC regulated power supply.

[0063] (1) DC regulated power supply

[0064] The DC regulated power supply simulates the vehicle's electrical power distribution system, providing a stable 12 / 24V voltage source for the battery swapping base platform. It powers two time relays, locking motors, reversing solenoid valves, battery swapping controllers, and offline data loggers. Simultaneously, it provides a high-level or low-level detection source for the sensor circuit. The selection of a high-level or low-level detection source is determined by the level detection characteristics of the battery swapping controller's I / O port. In this embodiment of the invention, a high-level detection source signal is selected.

[0065] (2) Time relay

[0066] This invention introduces a dual-time relay series / cascade scheme. Through the circuit control of the dual-time relays, a nested technical implementation scheme is achieved, where the large-cycle operation of the locking motor and the small-cycle reversing operation of the reversing solenoid valve are nested. A detailed description follows:

[0067] By setting the timing parameters of time relay 1 and time relay 2, the timing parameters of time relay 1 are set to T1 and T2, and the timing parameters of time relay 2 are set to t1 and t2. That is, the control terminal of time relay 1 closes for time T1 and then opens for time T2 each time, and the control terminal of time relay 2 closes for time t1 and then opens for time t2 each time, and the cycle continues.

[0068] (3) Automotive relays

[0069] In the automatic control module, the working state of the automotive relay is controlled by setting the closing and opening time of the time relay 1, thereby controlling the working state of the locking motor.

[0070] Specifically, the control terminal of time relay 1 is connected to the control terminal of the automotive relay, and the power supply of the locking motor is connected to the controlled terminal of the automotive relay. When the control terminal of time relay 1 is closed, the control terminal of the automotive relay is powered, and when the controlled terminal of the automotive relay is closed, the motor starts to work.

[0071] (4) Locking motor

[0072] Optionally, the locking motor includes an oil pump motor or an air pump motor. In practical use, other types of motors may also be used, and this should not be construed as limiting the embodiments of the present invention.

[0073] (5) Reversing solenoid valve

[0074] In the automatic control module, the working state of the reversing solenoid valve is controlled by setting the closing and opening time of the time relay 2, thereby controlling the locking motor to lock or release.

[0075] Specifically, the time relay 2 is set with a closing time t1 and an opening time t2. The control terminal of the time relay 2 controls the reversing solenoid valve to close within time t1 and open within time t2, thereby controlling the reversing solenoid valve of the control circuit to stop or rotate, thus realizing the locking or releasing function.

[0076] In this embodiment of the invention, time relay 1 and time relay 2 are cascaded. The control output of time relay 1 is connected to the control input of time relay 2. The output of time relay 1 is also connected to the power supply of the locking motor, and the output of time relay 2 is connected to the control terminal of the reversing solenoid valve. This allows the locking motor to operate during time T1 and to stop operating during time T2. During time T1, the motor operates in segment t1 and the solenoid valve is closed, causing the base locking mechanism to perform a release operation. During time T2, the motor operates in segment t2 and the solenoid valve is open, causing the base locking mechanism to begin the locking operation. Since the motor stops operating during time T2, the solenoid valve circuit no longer operates, and both the motor and the solenoid valve stop during this time period.

[0077] This invention introduces a circuit scheme combining time relay control and automotive relay conversion to achieve low-current logic control of high-current power distribution. It completes the technical solution verification and reliability test logic automatic control of the battery swapping base test bench before vehicle installation. At the same time, it can achieve technical solution matching by replacing different automotive relays according to different locking motor types.

[0078] In this embodiment of the invention, the time relay cascade scheme can also be implemented by writing a control program for the battery swapping controller, controlling the output port of the battery swapping controller to output a periodic level signal, and using automotive relays for circuit control output.

[0079] II. Data Monitoring Module

[0080] The battery swapping controller, offline data logger, and sensor module constitute the following: Figure 3 The data monitoring module shown; the circuit connection methods of the data monitoring module include:

[0081] Sensors 1, 2, and 3 are connected to the IO1 port of the battery swapping controller; Sensors 4, 5, and 6 are connected to the IO2 port of the battery swapping controller.

[0082] Sensors 7, 8, and 9 are connected to IO3 port of the battery swapping controller; sensors 10, 11, and 12 are connected to IO4 port of the battery swapping controller.

[0083] The IO5 port of the battery swapping controller is connected to the 6th interface of the time relay 2 in the automatic control module, and the output port of the battery swapping controller that outputs the CAN signal is connected to the input port of the offline data logger that receives data.

[0084] (1) Battery swapping controller

[0085] In this embodiment of the invention, the commutation solenoid valve signal output by the time relay 2 is synchronously connected to the battery swapping controller. The battery swapping controller collects the commutation solenoid valve signal and the detection signals from each sensor circuit, and converts the level signals into CAN signals to be sent to the bus. An offline data logger is connected to the CAN bus circuit of the battery swapping controller.

[0086] In this embodiment of the invention, a circuit scheme of reliability test bench + sensor detection is set up. The battery swapping controller can realize real-time acquisition of the control process status, ensure the closed loop of the control logic throughout the process, and detect the problem points in the reliability test process, which facilitates the location of the number and time of test problems, as well as the functions of automatic data acquisition and automatic counting.

[0087] (2) Offline data logger

[0088] The offline data logger receives and stores the status signals sent by the battery swapping controller into a local memory card for review and analysis of sensor status data after the test, and to analyze the test process; thus protecting the recorded data.

[0089] (3) Sensor Module

[0090] The sensor module includes:

[0091] The sensor module used to detect the locking circuit includes: sensor 1, sensor 2, sensor 3, sensor 4, sensor 5 and sensor 6;

[0092] The sensor module used to detect the release circuit includes: sensor 7, sensor 8, sensor 9, sensor 10, sensor 11 and sensor 12.

[0093] This invention introduces a scheme in which two similar sensors are connected in series and different types of sensors are connected in parallel. By adjusting the type of high and low level of the detection source, the sensor signal detection requirements are met while matching the feasibility of high-level detection or low-level detection at the battery swapping controller.

[0094] In this embodiment of the invention, when the time relay periodically controls the locking motor to lock or release, the sensor module can detect whether the external mechanical structure is locked or released through the corresponding sensor module that detects the locking circuit or the release circuit. By connecting each locking or release sensor in series, applying a detection source level signal at the initial end of the sensor circuit, and connecting the rear end of the sensor circuit to the battery swapping controller, the battery swapping controller can collect the rear circuit signal, thereby realizing the detection of the circuit status of the locking or release sensor.

[0095] The offline data logger receives the status signals sent by the battery swapping controller and stores them in the local memory card for later review and analysis of sensor status data and analysis of the test process after the test is completed.

[0096] The present invention provides an automatic control circuit for a battery swapping base platform. This circuit can work with the locking system and external mechanical structure of the battery swapping base platform to complete the technical solution verification, reliability test logic automatic control, automatic data acquisition, automatic counting and protection of the battery swapping base platform before vehicle installation. This solves the problems of high risk of battery swapping base system being installed on actual vehicles without testing, long modification cycle and single verification method.

[0097] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A battery replacement base station automatic control circuit, characterized in that, The application relates to an automatic control module for a battery replacement base platform, which comprises a direct-current stabilized power supply, a time relay 1, a time relay 2, an automobile relay, a locking motor, a reversing electromagnetic valve, a battery replacement controller, an offline data recorder and a sensor module. The direct-current stabilized power supply provides power supply for the automatic control circuit of the battery replacement base platform through simulation of the whole vehicle electrical system. The time relay 1 and the time relay 2 output control signals by setting different time parameters, periodically control the on-off of the automobile relay, and output a reversing electromagnetic valve signal to control the working state of the reversing electromagnetic valve, simulating the running or stopping in the actual use process of the battery replacement base platform. The automobile relay is used for controlling the working state of the locking motor according to the control signal. The reversing electromagnetic valve is used for adjusting its working state according to the reversing electromagnetic valve signal, thereby controlling the locking motor to perform corresponding operation. The direct-current stabilized power supply, the time relay 1, the time relay 2, the automobile relay, the locking motor and the reversing electromagnetic valve constitute an automatic control module. The 7 interface of the time relay 1 is connected with the positive pole of the direct-current stabilized power supply, the 5 interface of the time relay 1 is connected with the positive pole of the direct-current stabilized power supply, the 2 interface of the time relay 1 is connected with the negative pole of the direct-current stabilized power supply, and the 8 interface of the time relay 1 is connected with the 8 interface of the time relay 2. The 7 interface of the time relay 2 is connected with the positive pole of the direct-current stabilized power supply, the 5 interface of the time relay 2 is connected with the 85 interface of the automobile relay, the 6 interface of the time relay 2 is connected with the positive pole of the reversing electromagnetic valve, and the 2 interface of the time relay 2 is connected with the negative pole of the direct-current stabilized power supply. The 30 interface of the automobile relay is connected with the positive pole of the direct-current stabilized power supply, the 87 interface of the automobile relay is connected with the positive pole of the locking motor, and the 86 interface of the automobile relay is connected with the negative pole of the direct-current stabilized power supply. The negative pole of the locking motor is connected with the negative pole of the direct-current stabilized power supply. The negative pole of the reversing electromagnetic valve is connected with the negative pole of the direct-current stabilized power supply. The battery replacement controller is used for detecting, collecting, analyzing and processing the sensor state signal of the sensor module, the state signal of the reversing electromagnetic valve and the test cumulative number, and converting the signals into CAN signals for output. The offline data recorder is used for collecting the CAN signals output by the battery replacement controller in real time and storing the signals into a storage card for data analysis. The sensor module is used for collecting and detecting whether the external mechanical structure connected with the automatic control circuit of the battery replacement base platform is locked or released and outputting corresponding state signals. In the automatic control module, the working state of the automobile relay is controlled by setting the closing and opening time of the time relay 1, thereby controlling the working state of the locking motor.

2. The automatic control circuit of the battery swap station rack according to claim 1, wherein, ​ 3. The automatic control circuit of the battery swap station rack according to claim 1, wherein, In the automatic control module, the working state of the reversing electromagnetic valve is controlled by setting the closing and opening time of the time relay 2, and then the locking motor is controlled to lock or release.

4. The automatic control circuit of the battery swap station rack according to claim 1, wherein, The locking motor includes an oil pump motor or a gas pump motor.

5. The automatic control circuit of the battery swap station rack according to claim 1, wherein, The sensor module includes: The sensor module for detecting the locking circuit includes sensors 1, 2, 3, 4, 5, and 6. The sensor module for detecting the release circuit includes sensors 7, 8, 9, 10, 11, and 12.

6. The automatic control circuit of the battery swap station rack according to claim 5, wherein, The data monitoring module includes the battery replacement controller, the offline data recorder, and the sensor module; the circuit connection mode of the data monitoring module includes: The sensors 1, 2, and 3 are connected to the IO1 port of the battery replacement controller; the sensors 4, 5, and 6 are connected to the IO2 port of the battery replacement controller; The sensors 7, 8, and 9 are connected to the IO3 port of the battery replacement controller; the sensors 10, 11, and 12 are connected to the IO4 port of the battery replacement controller; The IO5 port of the battery replacement controller is connected to the 6 interface of the time relay 2 in the automatic control module, and the output port of the battery replacement controller outputting the CAN signal is connected to the input port of the offline data recorder receiving data.

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