New energy automobile working parameter simulation display device and display method

Abstract

This invention discloses a simulation display device and method for operating parameters of new energy vehicles, comprising: at least one simulation module; the simulation module comprising: a mapping unit for converting target parameters in the technical principle of the target new energy vehicle into mapping parameters under the safety domain; a first control unit for generating control commands; a physical simulation model unit connected to the first control unit and the mapping unit respectively, for receiving control commands and outputting mapping parameters based on an equivalent physical model; and a display unit connected to the physical simulation model unit; wherein the display unit includes a driving subunit and a physical effect generator; the driving subunit is used to drive one or more locally configured physical effect generators according to the mapping parameters; the dynamic response characteristics of the physical effect generator reflect the time-varying law of the target parameters, thereby reducing the cost of use and improving the operator's understanding of data changes.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, and in particular to a device and method for simulating and displaying the operating parameters of a new energy vehicle. Background Technology

[0002] With the development of the new energy vehicle industry, the demand for training related professional and technical personnel is becoming increasingly urgent. However, existing teaching and training equipment faces significant bottlenecks in supporting the teaching of core principles. First, there is a serious misalignment in teaching objectives. Existing solutions mostly focus on recognizing equipment structure, training measurement skills, or reading fault codes. While students can grasp static results such as "circuit continuity" and "voltage values," they struggle to intuitively understand dynamic working principles such as "how energy flows" and "how control logic makes decisions," leading to a dilemma of "knowing what but not why."

[0003] Secondly, there is an irreconcilable paradox between cost and safety. To achieve a certain level of realism in simulation, traditional solutions often have to use automotive-grade or industrial-grade components with voltage reduction modifications. This not only results in high costs for a single system, typically ranging from tens of thousands to hundreds of thousands of yuan, making it difficult to popularize in ordinary classrooms or personal learning scenarios; but even after modification, the system still retains the risk of medium- to high-voltage electric shock or mechanical injury, limiting students' exploratory experiments under extreme conditions.

[0004] Furthermore, existing technologies lack a universally applicable method for visualizing principles. Abstract key parameters such as current, voltage, control signals, and energy states cannot be directly transformed into physical phenomena that are intuitively perceptible to human senses. Students, faced with cold data screens, find it difficult to establish an intuitive connection between parameter changes and engineering principles. Therefore, there is an urgent need to develop a low-cost, high-security dynamic simulation technology based on parameter domain mapping to transform the internal operating mechanisms of complex systems into intuitive phenomena such as light, motion, and color, achieving an immersive teaching effect where "phenomena are principles." Summary of the Invention

[0005] This invention provides a simulation display device and method for the operating parameters of new energy vehicles, which reduces the cost of use and improves the operator's understanding of data changes.

[0006] In a first aspect, embodiments of the present invention provide a simulation and display device for the operating parameters of a new energy vehicle, comprising: at least one simulation module; the simulation module is configured to simulate and display the time-varying pattern of target parameters in the technical principle of the target new energy vehicle within a preset safe operating parameter range; The simulation module includes: The mapping unit is used to convert the target parameters in the target new energy vehicle technology principle into mapping parameters under the security domain; The first control unit is used to generate control commands; The physical simulation model unit is connected to the first control unit and the mapping unit respectively, and is used to receive the control command and output the mapping parameters based on the equivalent physical model; A demonstration unit is connected to the physical simulation model unit; wherein, the demonstration unit includes a driving subunit and a physical effect generator; the driving subunit is used to drive one or more locally configured physical effect generators according to the mapping parameters; the dynamic response characteristics of the physical effect generators reflect the time-varying law of the target parameters.

[0007] Optionally, the simulation module includes a standardized linkage interface and a second control unit; The standardized linkage interface includes a communication interface; When at least two of the simulation modules are interconnected through the communication interface, the second control unit is used to detect the communication connection status and broadcast identity information to the remaining second control units; The second control unit is also used to execute master-slave determination logic based on a preset negotiation algorithm and the received identity information, and to configure the current simulation module as a master node or a slave node; The second control unit of the simulation module configured as the master node is used to send the control command to the first control unit of the simulation module configured as the slave node according to the preset linkage demonstration script, so as to realize the collaborative linkage display between multiple modules.

[0008] Optionally, the communication protocol between the communication interfaces includes at least one of asynchronous serial communication, I2C, or a custom single-bus protocol.

[0009] Optionally, the simulation display device includes a power module; The standardized linkage interface also includes a power interface; The power module is connected to the power interface and is used to supply power to the simulation display device.

[0010] Optionally, the target new energy vehicle technology principle includes at least one of the following: regenerative braking, active battery pack balancing, bidirectional energy management, high-voltage interlock detection, fast charging, slow charging, high-voltage pre-charging, and active braking.

[0011] Optionally, the target parameters include at least one of the following: vehicle kinetic energy, drive motor torque, battery cell voltage difference, and high-voltage circuit insulation resistance.

[0012] Optionally, the mapping parameters include at least one of analog voltage signals and analog current signals; The physical effect generator includes an LED array for visually displaying parameter values ​​or trends of change; The communication interface and power interface in the standardized linkage interface are integrated into a magnetic spring pin connector, which is used to realize quick plugging and electrical connection between adjacent analog modules.

[0013] Secondly, embodiments of the present invention provide a method for simulating and displaying the operating parameters of a new energy vehicle, applied to the simulation and display device described in any embodiment of the present invention, comprising: The mapping unit converts the target parameters in the target new energy vehicle technology principle into mapping parameters under the security domain; The first control unit generates a control command and sends the control command to the physical simulation model unit; the physical simulation model unit responds to the control command and outputs the mapping parameters based on the equivalent physical model; The driving subunit drives one or more locally configured physical effect generators according to the mapping parameters; the dynamic response characteristics of the physical effect generators reflect the time-varying law of the target parameters.

[0014] Optionally, the target parameters in the target new energy vehicle technology principle are converted into mapping parameters under the safety domain, including: By using a linear transformation function or a nonlinear fitting algorithm, the numerical range of the target parameter is mapped to the numerical range of the mapped parameter under the security domain.

[0015] Optionally, the simulation module includes a standardized linkage interface and a second control unit; the standardized linkage interface includes a communication interface. The simulation demonstration method further includes: When at least two of the simulation modules are interconnected through the communication interface, the second control unit detects the communication connection status and broadcasts identity information to the remaining second control units; The second control unit executes master-slave determination logic based on a preset negotiation algorithm and the received identity information, configuring the current simulation module as a master node or a slave node; In this process, the second control unit of the simulation module configured as the master node sends the control command to the first control unit of the simulation module configured as the slave node according to the preset linkage demonstration script, so as to realize the collaborative linkage display between multiple modules.

[0016] The simulation demonstration device of this invention converts target parameters into mapped parameters within the safety domain through a mapping unit, reducing demonstration risks. Furthermore, by constructing a physical simulation model unit, it avoids the need for building automotive-grade experimental systems, reducing usage costs and facilitating the popularization of principle-based teaching tools. During the demonstration process, a physical effect generator can be integrated to transform the abstract time-varying patterns of target parameters into observable display information, improving the operator's understanding of data changes. Attached Figure Description

[0017] Figure 1 This invention provides a schematic diagram of the structure of a device for simulating and displaying the operating parameters of a new energy vehicle, as an embodiment of the present invention. Figure 2 This is a schematic diagram of the equivalent physical model for energy recovery provided in an embodiment of the present invention. Figure 3 A schematic diagram of the equivalent physical model for battery balancing provided in an embodiment of the present invention; Figure 4 A schematic diagram of the equivalent physical model for battery balancing is provided for another embodiment of the present invention; Figure 5 A schematic diagram of the structure of another simulation display device for the operating parameters of a new energy vehicle is provided for embodiments of the present invention; Figure 6 A schematic diagram of the structure of another simulation display device for the operating parameters of a new energy vehicle is provided for embodiments of the present invention; Figure 7 This is a flowchart illustrating a method for simulating and displaying the operating parameters of a new energy vehicle, as provided in an embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0019] Figure 1 This is a schematic diagram of the structure of a simulation display device for the operating parameters of a new energy vehicle provided in an embodiment of the present invention. See also: Figure 1 It includes: at least one simulation module 100; the simulation module 100 is configured to simulate and display the time-varying law of the target parameters in the target new energy vehicle technology principle within a preset safety domain operating parameter range; Simulation module 100 includes: Mapping unit 110 is used to convert the target parameters in the target new energy vehicle technology principle into mapping parameters under the safety domain; The first control unit 120 is used to generate control commands; The physical simulation model unit 130 is connected to the first control unit 120 and the mapping unit 110 respectively, and is used to receive control commands and output mapping parameters based on the equivalent physical model; The display unit 140 is connected to the physical simulation model unit 130; wherein, the display unit 140 includes a driving subunit 141 and a physical effect generator 142; the driving subunit 141 is used to drive one or more locally configured physical effect generators 142 according to the mapping parameters; the dynamic response characteristics of the physical effect generator 142 reflect the time-varying law of the target parameters.

[0020] Specifically, the mapping unit 110 converts the actual physical quantities in the target new energy vehicle technology principle, i.e., target parameters, such as vehicle kinetic energy, drive motor torque, battery cell voltage difference, and high-voltage circuit insulation resistance, into mapping parameters under the safety domain based on internally pre-stored linear or nonlinear transformation algorithms. The safety domain is a pre-set safe electrical environment for the teaching scenario, and the operating parameter range of the safety domain is a preset safe electrical parameter range. For example, the above mapping parameters may include at least one of analog voltage signals and analog current signals. For instance, the 0-400V drive bus voltage is mapped to 0-12V; the tens of amps of drive current are mapped to the milliamp level to ensure operational safety, thereby eliminating the risk of electrical injury at the source and allowing operators to conduct independent exploration in a desktop environment without strict supervision, greatly expanding the teaching scenario. It should be noted that the target parameters can be selected according to the specific new energy vehicle technology principle simulated by the simulation module 100. The technology principle may include regenerative braking, active battery pack balancing, bidirectional energy management, high-voltage interlock detection, fast charging, slow charging, high-voltage precharging, and active braking, etc. For example, for the technical principle of energy recovery, vehicle kinetic energy can be selected as the target parameter, and mapping unit 110 maps the vehicle kinetic energy to a mapping parameter within the safe kinetic energy range. For active battery pack balancing, the target parameter can be the voltage difference between individual cells. Mapping unit 110 converts the voltage difference into a millivolt-level voltage mapping parameter. For high-voltage pre-charging, the target parameter can be the voltage rise curve and peak inrush current during the bus capacitor charging process. Mapping unit 110 linearly compresses the high-voltage ramp-up process of several hundred volts to the 0-12V safe range. For high-voltage interlock detection, the target parameter can be the circuit on / off state. Mapping unit 110 converts the on / off state into a low-voltage logic level. For fast / slow charging, the target parameters are the charging power and battery temperature rise rate. Mapping unit 110 maps the high-power thermal effect into a current mapping parameter. For the principle of active braking technology, the target parameter can be the radar detection range change rate. Mapping unit 110 converts the radar detection range change rate into a mapping parameter of resistance change.

[0021] The first control unit 120 can be a microcontroller or FPGA. Based on a preset teaching script or real-time input signals, it generates precise control commands to schedule the operation logic of the equivalent physical model in the physical simulation model unit 130 and the display unit 140. The physical simulation model unit 130 provides an equivalent physical model, which can refer to an object model or a circuit model. For example, for simulating the principle of energy recovery technology, the equivalent physical model can be an object model, constructed using a miniature DC motor, a small-inertia flywheel, and a load. Figure 2 This is a schematic diagram of the equivalent physical model for energy recovery provided in an embodiment of the present invention. See [link / reference]. Figure 2The system includes a miniature DC motor 210, a metal flywheel 220, an energy management unit 240, and a switching unit 230. The miniature DC motor 210 is a bidirectional electromechanical conversion device. When energized, it can act as a motor, outputting mechanical torque to drive a load; when driven by an external force, it can act as a generator, converting mechanical energy into electrical energy. The metal flywheel 220 is a mechanical device that stores kinetic energy through a rotating mass. It can effectively store the kinetic energy input when the motor is running as a motor and continue to rotate due to inertia after power failure, driving the motor into a generator state. The energy management unit 240 is a circuit module used to convert external AC power into controllable DC power and supply power to the miniature DC motor 210. For example, the energy management unit 240 can integrate an AC-DC rectifier module and an adjustable DC voltage regulator circuit. The AC-DC rectifier module is used to convert 220V AC mains power into the operating voltage of the adjustable DC voltage regulator circuit; the adjustable DC voltage regulator circuit is used to output a continuously adjustable DC output voltage of 0-24V. The energy management unit 240 can be powered by mains electricity, thereby reducing power requirements and improving power compatibility in different areas. The switching unit 230 is used to switch the connection path of the miniature DC motor 210. The common terminal of the switching unit 230 is connected to the power input terminal of the miniature DC motor 210, the first terminal of the switching unit 230 is connected to the power output terminal of the energy management unit 240, and the second terminal of the switching unit 230 is connected to the display unit 140. The physical simulation model unit 130 can receive instructions from the first control unit 120 and dynamically adjust the internal physical model or circuit state. For example, in simulating the principle of energy recovery technology, the energy management unit 240 can respond to control commands by outputting a speed control signal, thereby adjusting the speed of the miniature DC motor 210. The switching unit 230 can respond to control commands by adjusting its conduction state.

[0022] For simulating the principle of battery equalization technology, the equivalent physical model can also be a circuit model. Figure 3 This is a schematic diagram of the equivalent physical model for battery balancing provided in an embodiment of the present invention. See [link / reference]. Figure 3 The system comprises three voltmeters: a first voltmeter V1, a second voltmeter V2, and a third voltmeter V3. The first voltmeter V1 collects the voltage signal of the first battery B1, and the voltage value of the second battery B2 is used to represent the remaining charge of the second battery B2. The third voltmeter V3 collects the voltage signal of the third battery B3, and the voltage value of the third battery B3 is used to represent the remaining charge of the third battery B3. These voltmeters transform the abstract difference in state of charge into a concrete voltage reading difference.

[0023] Based on the remaining power of the first battery B1, the second battery B2, and the third battery B3, the battery with the largest remaining power is selected for dissipation. Taking the second battery B2 as an example, when the switch of the circuit containing LED light L2 and the switches of the circuits containing the first voltmeter V1, the second voltmeter V2, and the third voltmeter V3 are closed, the second resistor R2 generates heat after being connected to the voltage of the second battery B2, thus dissipating the remaining power of the second battery B2. Simultaneously, the light illuminates to indicate the remaining power as the second resistor R2 dissipates the remaining power of the second battery B2. As the remaining power is consumed, the voltage of the second battery B2 gradually decreases. Finally, when the readings of the first voltmeter V1, the second voltmeter V2, and the third voltmeter V3 are the same, the analog voltage balancing is considered complete.

[0024] Figure 4 A schematic diagram of the equivalent physical model for battery balancing is provided for another embodiment of the present invention. See [link to diagram]. Figure 4 The fourth voltmeter V4 can collect the voltage signal of the fourth battery B4, and the voltage value of the fourth battery B4 can be used to characterize the remaining power of the fourth battery B4; the fifth voltmeter V5 can collect the voltage signal of the fifth battery B5, and the voltage value of the fifth battery B5 can be used to characterize the remaining power of the fifth battery B5; the sixth voltmeter V6 can collect the voltage signal of the sixth battery B6, and the voltage value of the sixth battery B6 can be used to characterize the remaining power of the sixth battery B6.

[0025] Taking the fifth battery B5 with the lowest remaining power as an example, switches S1, S2, S3, and S4 are closed. The charging module connects to the fifth battery B5 to charge it, and LED L5 is powered on, thus lighting up to indicate the charging process. As power is injected, the voltage of the fifth battery B5 gradually increases. Finally, when the readings of the fourth voltmeter V4, the fifth voltmeter V5, and the sixth voltmeter V6 are the same, the simulated voltage equalization experiment is considered complete. A passive equalization circuit for resistive energy consumption and an active equalization circuit are established based on the circuit model. The physical simulation model unit 130 can receive instructions from the first control unit 120 to dynamically adjust the internal physical model or circuit state. For example, the switching unit 230 in the circuit model can respond to control commands to adjust its switching action. Thus, the electrical characteristics of the target parameters are reproduced through an equivalent physical model.

[0026] The demonstration unit 140 includes a drive subunit 141 and a physical effect generator 142. The drive subunit 141 can generate a drive signal based on the mapping parameters of the physical simulation model. For example, in simulating the principle of energy recovery technology, the rotational speed of the micro DC motor 210 is converted into an electrical signal. The drive subunit 141 drives the physical effect generator 142 based on the electrical signal, and the physical effect generator 142 outputs a light signal for the operator to observe. The physical effect generator 142 may include an LED array for intuitively displaying parameter values ​​or trends. The color, brightness, and other dynamic feedback of the LED array reflect the energy recovery process, thereby reflecting the law of target parameter change over time, allowing the operator to intuitively see the energy flow process.

[0027] For example, the operation of simulation module 100 is explained through a simulation of the principle of energy recovery technology: Mapping unit 110 converts target parameters, such as vehicle kinetic energy, into mapping parameters under the safety domain. Vehicle kinetic energy can be expressed as mass × rotational speed. 2 / 2, the mapping parameter can be the kinetic energy of the metal flywheel 220, that is, there can be a corresponding relationship between the speed of the vehicle motor and the speed of the metal flywheel 220.

[0028] The equivalent physical model can be analogous to the three basic states of car driving: When the micro DC motor 210 is in motor mode, i.e., throttle drive mode: the first control unit 120 controls the common terminal and the first terminal of the switch unit 230 to conduct, establishing an electrical path between the energy management unit 240 and the micro DC motor 210. This is the drive mode; the first control unit 120 controls the energy management unit 240 to output DC power, and the micro DC motor 210 drives the metal flywheel 220 to rotate, converting electrical energy into kinetic energy for storage. When the micro DC motor 210 is in generator mode, i.e., regenerative braking mode: the first control unit 120 controls the common terminal and the second terminal of the switch unit 230 to conduct, establishing an electrical path between the micro DC motor 210 and the display unit 140; the micro DC motor 210 and the display unit 140 form a closed loop. This is the regeneration mode; the micro DC motor 210 is in generator mode and can output regenerated current. The rotational energy of the micro DC motor 210 comes from the inertial rotation of the metal flywheel 220. The drive subunit 141 drives the physical effect generator 142 based on the recovered current. This recovered current is positively correlated with the rotational speed of the micro DC motor 210. The physical effect generator 142 includes an LED array; driving the subunit 141 with the recovered current illuminates the LEDs, and the brightness changes with the magnitude of the recovered current, visually reflecting the intensity of energy recovery. When the micro DC motor 210 is in neutral, the first control unit 120 controls the common terminal of the switch unit 230 to be disconnected from any other terminal, all electrical paths are broken, and the system is in a safe standby or inertial coasting state.

[0029] The simulation demonstration device of this invention converts target parameters into mapped parameters within the safety domain through the mapping unit 110, reducing demonstration risks. Furthermore, by constructing the physical simulation model unit 130, it avoids the need for building automotive-grade experimental systems, reducing usage costs and facilitating the popularization of principle-based teaching tools. During the demonstration process, it can be combined with the physical effect generator 142 to transform the abstract time-varying patterns of target parameters into observable display information, improving the operator's understanding of data changes.

[0030] Figure 5 A schematic diagram of the structure of another simulation display device for the operating parameters of new energy vehicles is provided for embodiments of the present invention. See also Figure 5 The simulation module 100 includes a standardized linkage interface 160 and a second control unit 150; The standardized linkage interface 160 includes a communication interface; When at least two analog modules 100 are interconnected through a communication interface, the second control unit 150 is used to detect the communication connection status and broadcast identity information to the remaining second control units 150. Based on the preset negotiation algorithm and the received identity information, the master-slave determination logic is executed to configure the current simulation module 100 as a master node or a slave node. The second control unit 150 of the simulation module 100, which is configured as the master node, is used to send control commands to the first control unit 120 of the simulation module 100, which is configured as the slave node, according to a preset linkage demonstration script, so as to realize the collaborative linkage display between multiple modules.

[0031] Specifically, the standardized linkage interface 160 is mounted on the casing of the simulation module 100. The standardized linkage interface 160 can include a communication interface, such as asynchronous serial communication, I2C, Ethernet, or a custom single-bus protocol, with a speed between 1200bps and 9600bps to meet the synchronization requirements of control commands. When the operator needs to demonstrate complex operating conditions, the required simulation modules 100 can be connected through the standardized linkage interface 160. The second control unit 150 of the simulation module 100 monitors the communication interface level in real time. Once a physical link connection is detected, it immediately broadcasts identity information. The second control unit 150, based on a preset negotiation algorithm, for example, designates one of the simulation modules 100, or elects a master node based on the identity information of each simulation module 100, such as its identity ID value, with the module having the largest ID value. The remaining simulation modules 100 become slave nodes. The second control unit 150 of the master node's simulation module 100 retrieves a preset linkage demonstration script and sends control commands to the first control unit 120 of the simulation module 100 configured as a slave node. The preset linkage demonstration script can represent the technical principles that require the linkage demonstration of various modules. Each simulation module 100 responds to control commands and drives its respective equivalent physical module and display unit 140 to move.

[0032] For example, regarding vehicle-to-grid (V2G) technology. Figure 6 A schematic diagram of the structure of another simulation display device for the operating parameters of new energy vehicles is provided for embodiments of the present invention. See also Figure 6The simulation module 100, representing the power grid module 310, bidirectional charger module 320, battery management module 330, and home load module 340, can be connected via a standardized linkage interface 160. Specifically, the physical simulation model unit 130 in the power grid module 310 is equipped with an LED array, using a constant first color to simulate the power grid; the physical simulation model unit 130 in the battery management module 330 is equipped with LED light pillars, using gradient colors to simulate the battery's energy reserve. This maps the current flow information in the technical principle to light effect information. The physical simulation model unit 130 in the bidirectional charger module 320 is equipped with a first switch S5, a second switch S6, and an AC / DC to DC / DC simulation unit (AC / DC-DC / DC) 321, which uses the first switch S5 and the second switch S6 to simulate the conversion of the current path. The first output terminal of the power grid module 310 is connected to the first terminal of the AC / DC to DC / DC simulation unit 321 through the first switch S5, and the first output terminal of the power grid module 310 is connected to the second terminal of the AC / DC to DC / DC simulation unit 321. The second switch S6 includes a normally closed switch S61, a first normally open switch S62, and a second normally open switch S63. The first output terminal of the AC / DC to DC / DC simulation unit 321 is connected to the battery management module 330 through the normally closed switch S61, the second output terminal of the AC / DC to DC / DC simulation unit 321 is connected to the battery management module 330 through the first normally open switch S62, and the third output terminal of the AC / DC to DC / DC simulation unit 321 is connected to the household load module 340 through the second normally open switch S63. The connection path can be made using LED light strips, with the direction of the LED light strips illuminating simulating the current path.

[0033] The second control unit 150 of each simulation module 100 monitors the communication interface level in real time. Once a physical link connection is detected, it immediately broadcasts its identity information. The second control unit 150, based on a preset negotiation algorithm, may designate one of the simulation modules 100, or elect a master node based on the identity information of each simulation module 100, such as its ID value, with the module having the largest ID value. The remaining simulation modules 100 become slave nodes. For example, taking the bidirectional charger module 320 as the master node, the second control unit 150 of the bidirectional charger module 320 retrieves a preset linkage demonstration script and sends control commands to the first control unit 120 of the simulation module 100 configured as a slave node. The preset linkage demonstration script can provide information such as the grid module 310 charging the battery management module 330 through the bidirectional charger module 320, and the battery management module 330 supplying power to the grid module 310 and the home load module 340, respectively. Each slave simulation module 100 responds to the control commands, driving the local equivalent physical module and display unit 140 to operate. For example, it may illuminate an LED and control corresponding switching actions. During the charging process, the first switch S5 of the bidirectional charger module 320 closes, and the LED strip between the grid module 310 and the bidirectional charger module 320 illuminates to show the flow direction. The normally closed switch S61 closes, the first normally open switch S62 and the second normally open switch S63 turn off, and the LED strip along the path of the normally closed switch S61 illuminates to show the current flow direction, thus simulating the charging process from the grid module 310 to the battery management module 330 using light effects. During the discharging process, the normally closed switch S61 turns off, the first normally open switch S62 turns on, and the second normally open switch S63 turns on, and the LED strip along the path of the first normally open switch S62 and the second normally open switch S63 illuminates to show the current flow direction. The LED strip between the grid module 310 and the bidirectional charger module 320 also illuminates, thus simulating the discharging process from the battery management module 330 to the grid module 310 and the household load module 340 using light effects. By introducing a standardized 160-level linkage interface and automated master-slave determination logic, operators can freely combine the number of modules according to teaching needs. The system automatically identifies the topology, greatly reducing the operational threshold. This allows the demonstration device to be freely assembled according to teaching needs, enabling rapid construction from single-principle demonstrations to complex linkages.

[0034] Optionally, the simulation display device includes a power module; The standardized linkage interface 160 also includes a power interface; The power module connects to the power interface to supply power to the simulation display device. The power module is equipped with a miniature lithium battery or USB power interface, and a physical switch / button, enabling immediate use without external devices and improving ease of use. Optionally, the communication and power interfaces in the standardized linkage interface 160 are integrated into a magnetic spring-loaded connector, allowing for quick mating and electrical connection between adjacent simulation modules 100.

[0035] Figure 7 This is a flowchart illustrating a method for simulating and demonstrating the operating parameters of a new energy vehicle according to an embodiment of the present invention. This embodiment is applicable to the simulation and teaching demonstration of the operating parameters of new energy vehicles. The method can be executed by a simulation demonstration device, which can be implemented in hardware and / or software. The method specifically includes the following steps: S110 and mapping unit 110 convert the target parameters in the target new energy vehicle technology principle into mapping parameters under the safety domain; Specifically, the mapping unit 110 converts the actual physical quantities in the target new energy vehicle technology principle, i.e., target parameters, such as vehicle kinetic energy, drive motor torque, battery cell voltage difference, and high-voltage circuit insulation resistance, into mapping parameters under the safety domain based on internally pre-stored linear or nonlinear transformation algorithms. The safety domain is a pre-set safe electrical environment for the teaching scenario, and the operating parameter range of the safety domain is a preset safe electrical parameter range. For example, the above mapping parameters may include at least one of analog voltage signals and analog current signals. For instance, the 0-400V drive bus voltage is mapped to 0-12V; the tens of amps of drive current are mapped to the milliamp level to ensure operational safety, thereby eliminating the risk of electrical injury at the source and allowing operators to conduct independent exploration in a desktop environment without strict supervision, greatly expanding the teaching scenario. It should be noted that the target parameters can be selected according to the specific new energy vehicle technology principle simulated by the simulation module 100. The technology principle may include regenerative braking, active battery pack balancing, bidirectional energy management, high-voltage interlock detection, fast charging, slow charging, high-voltage precharging, and active braking, etc. For example, for the technical principle of energy recovery, vehicle kinetic energy can be selected as the target parameter, and mapping unit 110 maps the vehicle kinetic energy to a mapping parameter within the safe kinetic energy range. For active battery pack balancing, the target parameter can be the voltage difference between individual cells. Mapping unit 110 converts the voltage difference into a millivolt-level voltage mapping parameter. For high-voltage pre-charging, the target parameter can be the voltage rise curve and peak inrush current during the bus capacitor charging process. Mapping unit 110 linearly compresses the high-voltage ramp-up process of several hundred volts to the 0-12V safe range. For high-voltage interlock detection, the target parameter can be the circuit on / off state. Mapping unit 110 converts the on / off state into a low-voltage logic level. For fast / slow charging, the target parameters are the charging power and battery temperature rise rate. Mapping unit 110 maps the high-power thermal effect into a current mapping parameter. For the principle of active braking technology, the target parameter can be the radar detection range change rate. Mapping unit 110 converts the radar detection range change rate into a mapping parameter of resistance change.

[0036] S120, the first control unit 120 generates control commands and sends the control commands to the physical simulation model unit 130; the physical simulation model unit 130 responds to the control commands and outputs mapping parameters based on the equivalent physical model; Specifically, the first control unit 120 can be a microcontroller or FPGA. Based on a preset teaching script or real-time input signals, it generates precise control commands to schedule the operation logic of the equivalent physical model in the physical simulation model unit 130 and the display unit 140. The physical simulation model unit 130 provides an equivalent physical model, which can refer to an object model or a circuit model. For example, for simulating the principle of energy recovery technology, the equivalent physical model can be an object model, constructed using a micro DC motor 210, a small inertia flywheel, and a load. The physical simulation model unit 130 can receive commands from the first control unit 120 and dynamically adjust the internal physical model or circuit state. For example, for simulating the principle of energy recovery technology, the micro DC motor 210 can respond to control commands to adjust its speed. The control switch unit 230 can respond to control commands to adjust its conduction state.

[0037] For simulating the principle of battery balancing technology, the equivalent physical model can also be a circuit model. For example, in the circuit model, a low-voltage lithium battery cell can be simulated using a parallel adjustable resistor, and an active balancing circuit can be established based on capacitance or inductance, or a passive balancing circuit can be established based on resistive energy consumption. The physical simulation model unit 130 can receive instructions from the first control unit 120 and dynamically adjust the internal physical model or circuit state. For example, for simulating the principle of battery balancing technology, the switching unit 230 in the circuit model can respond to control instructions to adjust the switching action. Thus, the electrical characteristics of the target parameters can be reproduced through the equivalent physical model.

[0038] S130, the driving subunit 141 drives one or more locally configured physical effect generators 142 according to the mapping parameters; the dynamic response characteristics of the physical effect generators 142 reflect the time-varying law of the target parameters.

[0039] Specifically, the display unit 140 includes a drive subunit 141 and a physical effect generator 142. The drive subunit 141 can generate drive signals based on the mapping parameters output by the physical simulation model. For example, in simulating the principle of energy recovery technology, the rotational speed of the micro DC motor 210 is converted into an electrical signal. The physical effect generator 142 can convert the electrical signal into an audio-visual signal for the operator to observe. For example, the physical effect generator 142 includes an LED array for intuitively displaying parameter values ​​or trends. The color, brightness, and other dynamic feedback of the LED array reflect the energy recovery process, thereby reflecting the law of target parameter change over time, allowing the operator to intuitively see the energy flow process.

[0040] Optionally, the target parameters in the target new energy vehicle technology principle are converted into mapping parameters under the safety domain, including: By using linear transformation functions or nonlinear fitting algorithms, the numerical range of the target parameters can be mapped to the numerical range of the mapped parameters under the safe region.

[0041] Specifically, the mapping parameter is the equivalent value of the target parameter after mathematical processing, falling within the safety region and maintaining the original physical change trend. Linear transformation functions are suitable for scenarios where the input and output are directly proportional; nonlinear fitting algorithms are used to handle complex physical curves with exponential, logarithmic, or saturation characteristics, such as the nonlinear relationship between battery SOC and open-circuit voltage. The simulation's technical principles and corresponding target parameters are obtained, for example, the target parameter is the bus drive voltage of 0-400V. Using a linear transformation function and setting a scaling factor, the high-voltage bus voltage is mapped to a safe voltage signal of 0-12V. If the simulated real voltage increases at a constant rate, the mapping parameter also increases linearly within the safety region, driving the LED light strip of display unit 140 to brighten uniformly. When simulating the remaining SOC of a lithium battery, the target parameters are the SOC value and the corresponding open-circuit voltage. Since the two exhibit a complex nonlinear curve relationship, a nonlinear fitting algorithm, such as polynomial fitting or lookup table interpolation, can be used to compress the real OCV curve characteristics into the safe region of 0~3.3V. When the target parameter experiences a sharp voltage drop in the low-charge region, the mapping parameter will show the same change trend within the safety region. The converted mapping parameters are sent to the display unit 140 in real time to drive the audio-visual equipment.

[0042] Optionally, the simulation module 100 includes a standardized linkage interface 160 and a second control unit 150; the standardized linkage interface 160 includes a communication interface. The simulation demonstration method also includes: When at least two analog modules 100 are interconnected through a communication interface, the second control unit 150 detects the communication connection status and broadcasts identity information to the remaining second control units 150. Based on the preset negotiation algorithm and the received identity information, the master-slave determination logic is executed to configure the current simulation module 100 as a master node or a slave node. The second control unit 150 of the simulation module 100, which is configured as the master node, sends control commands to the first control unit 120 of the simulation module 100, which is configured as the slave node, according to a preset linkage demonstration script, so as to realize the collaborative linkage display between multiple modules.

[0043] Specifically, the standardized linkage interface 160 is mounted on the casing of the simulation module 100. The standardized linkage interface 160 can include a communication interface, such as asynchronous serial communication, I2C, Ethernet, or a custom single-bus protocol, with a speed between 1200bps and 9600bps to meet the synchronization requirements of control commands. When the operator needs to demonstrate complex operating conditions, the required simulation modules 100 can be connected through the standardized linkage interface 160. The second control unit 150 of the simulation module 100 monitors the communication interface level in real time. Once a physical link connection is detected, it immediately broadcasts identity information. The second control unit 150, based on a preset negotiation algorithm, for example, designates one of the simulation modules 100, or elects a master node based on the identity information of each simulation module 100, such as its identity ID value, with the module having the largest ID value. The remaining simulation modules 100 become slave nodes. The second control unit 150 of the master node's simulation module 100 retrieves a preset linkage demonstration script and sends control commands to the first control unit 120 of the simulation module 100 configured as a slave node. The preset linkage demonstration script can represent the technical principles that require the linkage demonstration of various modules. Each simulation module 100 responds to control commands and drives its respective equivalent physical module and display unit 140 to move.

[0044] By introducing a standardized 160-level linkage interface and automated master-slave determination logic, operators can freely combine the number of modules according to teaching needs. The system automatically identifies the topology, greatly reducing the operational threshold. This allows the demonstration device to be freely assembled according to teaching needs, enabling rapid construction from single-principle demonstrations to complex linkages.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for simulating and displaying the operating parameters of a new energy vehicle, characterized in that, include: At least one simulation module; the simulation module is configured to simulate and display the time-varying law of the target parameters in the target new energy vehicle technology principle within a preset safety domain operating parameter range; The simulation module includes: The mapping unit is used to convert the target parameters in the target new energy vehicle technology principle into mapping parameters under the security domain; The first control unit is used to generate control commands; The physical simulation model unit is connected to the first control unit and the mapping unit respectively, and is used to receive the control command and output the mapping parameters based on the equivalent physical model; A demonstration unit is connected to the physical simulation model unit; wherein, the demonstration unit includes a driving subunit and a physical effect generator; the driving subunit is used to drive one or more locally configured physical effect generators according to the mapping parameters; the dynamic response characteristics of the physical effect generators reflect the time-varying law of the target parameters.

2. The simulation and display device for the operating parameters of new energy vehicles according to claim 1, characterized in that, The simulation module includes a standardized linkage interface and a second control unit; The standardized linkage interface includes a communication interface; When at least two of the simulation modules are interconnected through the communication interface, the second control unit is used to detect the communication connection status and broadcast identity information to the remaining second control units; The second control unit is also used to execute master-slave determination logic based on a preset negotiation algorithm and the received identity information, and to configure the current simulation module as a master node or a slave node; The second control unit of the simulation module configured as the master node is used to send the control command to the first control unit of the simulation module configured as the slave node according to the preset linkage demonstration script, so as to realize the collaborative linkage display between multiple modules.

3. The simulation and display device for the operating parameters of new energy vehicles according to claim 2, characterized in that, The communication protocol between the communication interfaces includes at least one of asynchronous serial communication, I2C, or a custom single-bus protocol.

4. The simulation and display device for the operating parameters of new energy vehicles according to claim 3, characterized in that, The simulation display device includes a power module; The standardized linkage interface also includes a power interface; The power module is connected to the power interface and is used to supply power to the simulation display device.

5. The simulation and display device for the operating parameters of new energy vehicles according to claim 1, characterized in that, The target new energy vehicle technology principle includes at least one of the following: regenerative braking, active battery pack balancing, bidirectional energy management, high-voltage interlock detection, fast charging, slow charging, high-voltage pre-charging, and active braking.

6. The simulation and display device for the operating parameters of new energy vehicles according to claim 1, characterized in that, The target parameters include at least one of the following: vehicle kinetic energy, drive motor torque, battery cell voltage difference, and high-voltage circuit insulation resistance.

7. The simulation and display device for the operating parameters of new energy vehicles according to claim 4, characterized in that, The mapping parameters include at least one of analog voltage signals and analog current signals; The physical effect generator includes an LED array for visually displaying parameter values ​​or trends of change; The communication interface and power interface in the standardized linkage interface are integrated into a magnetic spring pin connector, which is used to realize quick plugging and electrical connection between adjacent analog modules.

8. A method for simulating and displaying the operating parameters of a new energy vehicle, applied to the simulation and display device as described in any one of claims 1 to 7, characterized in that, include: The mapping unit converts the target parameters in the target new energy vehicle technology principle into mapping parameters under the security domain; The first control unit generates a control command and sends the control command to the physical simulation model unit; the physical simulation model unit responds to the control command and outputs the mapping parameters based on the equivalent physical model; The driving subunit drives one or more locally configured physical effect generators according to the mapping parameters; the dynamic response characteristics of the physical effect generators reflect the time-varying law of the target parameters.

9. The method for simulating and displaying the operating parameters of a new energy vehicle according to claim 8, characterized in that, Converting the target parameters in the principle of the target new energy vehicle technology into mapping parameters under the security domain includes: By using a linear transformation function or a nonlinear fitting algorithm, the numerical range of the target parameter is mapped to the numerical range of the mapped parameter under the security domain.

10. The method for simulating and displaying the operating parameters of a new energy vehicle according to claim 8, characterized in that, The simulation module includes a standardized linkage interface and a second control unit; the standardized linkage interface includes a communication interface. The simulation demonstration method further includes: When at least two of the simulation modules are interconnected through the communication interface, the second control unit detects the communication connection status and broadcasts identity information to the remaining second control units; The second control unit executes master-slave determination logic based on a preset negotiation algorithm and the received identity information, configuring the current simulation module as a master node or a slave node; In this process, the second control unit of the simulation module configured as the master node sends the control command to the first control unit of the simulation module configured as the slave node according to the preset linkage demonstration script, so as to realize the collaborative linkage display between multiple modules.

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