Vehicle chassis height control method, device, vehicle, storage medium and electronic device

Abstract

The present invention discloses a vehicle chassis height control method, device, vehicle, storage medium and electronic device, which relates to the technical field of vehicles. Among them, the method includes: determining a first current range and a first self-inductance of a transmitting coil, a second current range and a second self-inductance of a receiving coil, and an initial coupling coefficient between the transmitting coil and the receiving coil; determining a target output power of a battery according to the first current, the first self-inductance, the second current, the second self-inductance and the initial coupling coefficient; comparing the target output power with an output power threshold to obtain a comparison result; and adjusting the chassis height of the vehicle based on the comparison result. The present invention solves the technical problem that the power of the related wireless charging system is strongly related to in-vehicle devices and ground devices, so that when the battery voltage is low and the deviation degree is large, the power transmission capacity is greatly reduced, resulting in low charging efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to a method and device for controlling the chassis height of a vehicle, a vehicle, a storage medium, and an electronic device. Background Art

[0002] The development of wireless power transfer (WPT) technology has brought a new way for the energy supply of electric vehicles - electric vehicle wireless power transfer (EV WPT). The primary task of an electric vehicle wireless charging system is to achieve efficient wireless energy supply for electric vehicles. Therefore, efficient and safe power conversion and transmission are the core of the wireless charging system. In actual scenarios, due to the inaccuracy of the vehicle parking position, there is a certain deviation in the position of the in-vehicle charging device relative to the ground charging device, which seriously affects the power transmission ability of vehicle wireless charging and results in low charging efficiency. Therefore, it is very important to control the position of the in-vehicle charging device of the vehicle to make it coincide with the position of the ground charging device.

[0003] Currently, the power of existing wireless charging systems is strongly related to in-vehicle devices and ground devices, resulting in a significant reduction in power transmission ability and low charging efficiency when the battery voltage is low and the deviation degree is large.

[0004] For the above problems, no effective solution has been proposed yet. Summary of the Invention

[0005] Embodiments of the present invention provide a method and device for controlling the chassis height of a vehicle, a vehicle, a storage medium, and an electronic device, so as to at least solve the technical problem that the power of the wireless charging system in the related art is strongly related to in-vehicle devices and ground devices, resulting in a significant reduction in power transmission ability and low charging efficiency when the battery voltage is low and the deviation degree is large.

[0006] According to an embodiment of the present invention, there is provided a method for controlling the chassis height of a vehicle, including:

[0007] Determine the first current range and the first self-inductance of the transmitting coil, the second current range and the second self-inductance of the receiving coil, and the initial coupling coefficient between the transmitting coil and the receiving coil. The transmitting coil and the receiving coil are used to transfer the energy provided by the charging pile to the vehicle's battery, and the initial coupling coefficient is determined by the initial current of the transmitting coil and the initial current of the receiving coil. Determine the target output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient. The target output power is the maximum output power of the battery, the first current is the maximum current in the first current range, and the second current is the maximum current in the second current range. Compare the target output power with the output power threshold to obtain a comparison result. The output power threshold is determined according to the power coefficient of the control device and the desired output power. The control device is used to control the chassis height of the vehicle, and the desired output power is determined according to the specifications of the battery. Adjust the chassis height of the vehicle based on the comparison result.

[0008] Optionally, the output power threshold includes a first output power threshold, and the first output power threshold is used to represent the maximum output power that satisfies the power transmission ability. Comparing the target output power with the output power threshold to obtain a comparison result includes: in response to the target output power being greater than the first output power threshold, obtaining a first comparison result, where the first comparison result is used to represent raising the chassis of the vehicle.

[0009] Optionally, the output power threshold further includes a second output power threshold, and the second output power threshold is used to represent the minimum output power that satisfies the power transmission ability. It further includes: in response to the target output power being less than the second output power threshold, obtaining a second comparison result, where the second comparison result is used to represent lowering the chassis of the vehicle.

[0010] Optionally, the method further includes: in response to the target output power being less than or equal to the first output power threshold and greater than or equal to the second output power threshold, obtaining a third comparison result, where the third comparison result is used to represent keeping the chassis height of the vehicle unchanged.

[0011] Optionally, the method further includes: updating the initial coupling coefficient to obtain a target coupling coefficient, where the target coupling coefficient is used to adjust the chassis height of the vehicle.

[0012] Optionally, adjusting the chassis height of the vehicle based on the comparison result includes: determining the adjustment range of the control device, where the adjustment range is used to represent the range of adjustment of the chassis height; adjusting the chassis height of the vehicle according to the comparison result and the adjustment range.

[0013] According to one embodiment of the present invention, there is also provided a vehicle chassis height control device, including: a first determination module configured to determine a first current range and a first self-inductance of a transmitting coil, a second current range and a second self-inductance of a receiving coil, and an initial coupling coefficient between the transmitting coil and the receiving coil, wherein the transmitting coil and the receiving coil are used to transfer the energy provided by a charging pile to the battery of the vehicle, and the initial coupling coefficient is determined by an initial current of the transmitting coil and an initial current of the receiving coil; a second determination module configured to determine a target output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient, wherein the target output power is the maximum output power of the battery, the first current is the maximum current in the first current range, and the second current is the maximum current in the second current range; a comparison module configured to compare the target output power with an output power threshold to obtain a comparison result, wherein the output power threshold is determined according to a power coefficient of a control device and an expected output power, the control device is used to control the chassis height of the vehicle, and the expected output power is determined according to the specifications of the battery; an adjustment module configured to adjust the chassis height of the vehicle based on the comparison result.

[0014] Optionally, the comparison module is further configured to obtain a first comparison result in response to the target output power being greater than a first output power threshold, wherein the first comparison result is used to indicate raising the chassis of the vehicle.

[0015] Optionally, the comparison module is further configured to obtain a second comparison result in response to the target output power being less than a second output power threshold, wherein the second comparison result is used to indicate lowering the chassis of the vehicle.

[0016] Optionally, the comparison module is further configured to obtain a third comparison result in response to the target output power being less than or equal to the first output power threshold and greater than or equal to the second output power threshold, wherein the third comparison result is used to indicate keeping the chassis height of the vehicle unchanged.

[0017] Optionally, the comparison module is further configured to update the initial coupling coefficient to obtain a target coupling coefficient, wherein the target coupling coefficient is used to adjust the chassis height of the vehicle.

[0018] Optionally, the adjustment module is further configured to determine an adjustment range of the control device, wherein the adjustment range is used to represent the range of adjustment of the chassis height; and adjust the chassis height of the vehicle according to the comparison result and the adjustment range.

[0019] According to one embodiment of the present application, there is also provided a vehicle, which is used to execute the vehicle chassis height control method in any one of the above.

[0020] According to one embodiment of the present invention, there is also provided a computer-readable storage medium storing a computer program, wherein the computer program is configured to execute the vehicle chassis height control method in any one of the above when running on a computer or a processor.

[0021] According to one embodiment of the present invention, there is also provided an electronic device including a memory and a processor, the memory storing a computer program, and the processor being configured to run the computer program to execute the vehicle chassis height control method in any one of the above.

[0022] In an embodiment of the present invention, by determining a first current range and a first self-inductance of a transmitting coil, a second current range and a second self-inductance of a receiving coil, and an initial coupling coefficient between the transmitting coil and the receiving coil, wherein the transmitting coil and the receiving coil are used to transmit the energy provided by a charging pile to the battery of the vehicle, the initial coupling coefficient is determined by a first current of the transmitting coil and a second current of the receiving coil, the first current is the maximum current in the first current range, the second current is the maximum current in the second current range, then determining the maximum output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance and the initial coupling coefficient, and comparing the target output power with an output power threshold to obtain a comparison result, wherein the output power threshold is determined according to a power coefficient of a control device and an expected output power, the control device is used to control the chassis height of the vehicle, the expected output power is determined according to the specifications of the battery, and finally adjusting the chassis height of the vehicle based on the comparison result. Thus, when the battery voltage is low and the offset is large (low coupling coefficient), the chassis height of the vehicle can be automatically adjusted to increase the coupling between the transmitting coil and the receiving coil of the wireless charging system, further improving the transmission power of the electric vehicle wireless charging system, and then solving the technical problem that the power of the wireless charging system in the related art is strongly related to the in-vehicle device and the ground device, so that the power transmission ability of the system is greatly reduced when the battery voltage is low and the offset degree is large, resulting in low charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the illustrative embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation to the present invention. In the drawings:

[0024] Figure 1 is a typical principle block diagram of an electric vehicle wireless charging system according to one embodiment of the present invention;

[0025] Figure 2 is a typical schematic diagram of a 10kW wireless charging system for an electric vehicle according to one embodiment of the present invention;

[0026] Figure 3It is a flowchart of a vehicle chassis height control method according to an embodiment of the present invention;

[0027] Figure 4 It is a flowchart of enhancing the power transmission capacity of an electric vehicle wireless charging system based on an air suspension system according to an embodiment of the present invention;

[0028] Figure 5 It is a structural block diagram of a vehicle chassis height control device according to an embodiment of the present invention. Detailed implementation manners

[0029] For ease of understanding, some explanations of concepts related to the embodiments of the present invention are exemplarily given for reference.

[0030] As shown below:

[0031] Electric vehicle wireless charging system: It transmits electrical energy in the form of a high-frequency alternating magnetic field through a power supply guide buried underground to a power pickup mechanism of a vehicle receiver running within a certain range on the ground, and then supplies power to an in-vehicle energy storage device.

[0032] Figure 1 It is a typical principle block diagram of an electric vehicle wireless charging system according to an embodiment of the present invention, as Figure 1 shown in Figure 1 It includes a power factor corrector (PFC) module, a buck converter circuit (BUCK circuit) module, an inverter module, a primary compensation circuit, a secondary compensation circuit, and a rectifier module. Among them, the PFC module is an AC / DC circuit, which is used to convert industrial frequency alternating current into a stable DC voltage and ensure a unity power factor. The BUCK module is a DC / DC circuit, which is used for voltage regulation and provides a suitable DC voltage for the inverter. The inverter module is a DC / AC circuit, which is used to convert the DC voltage into a high-frequency AC voltage to obtain a high-frequency electric field for energy transmission. The primary compensation circuit and the secondary compensation circuit are generally resonant (LCC-LCC) circuits, which are used to compensate the inductance of the transmitting and receiving coils so that a sufficient excitation current can be generated under a limited voltage. The rectifier module is an AC / DC circuit, which is used to convert the high-frequency AC current into a DC current to supply power to the battery.

[0033] Figure 1The current and voltage are output from the power grid. The PFC module converts the industrial-frequency alternating current into a stable direct current voltage, and the BUCK module provides a suitable direct current voltage for the inverter. Then, the inverter converts the direct current voltage into a high-frequency alternating current voltage. After compensating for the inductance of the transmitting and receiving coils through the primary compensation circuit and the secondary compensation circuit, the rectifier module converts the high-frequency alternating current into a direct current to complete the battery power supply.

[0034] In the actual scenario, the energy transfer during vehicle charging is completed through the transmitting coil at the ground end and the receiving coil at the vehicle-mounted end, and its coupling coefficient is closely related to the parking position. It can be understood that in actual situations, the accuracy of the parking position is affected by the driver's skills, the positioning accuracy of the vehicle, the environment, etc., resulting in different offsets in the vehicle position. Table 1 shows the position offsets in the X, Y, and Z directions that need to be satisfied as specified by the international general electric vehicle wireless charging standard SAE J2954.

[0035] Table 1 Position offsets in the X, Y, and Z axes that the vehicle-mounted device needs to satisfy

[0036] Offset direction Offset (mm) ΔX ±75 ΔY ±100 Z Determined by the supplier and vehicle model

[0037] As shown in Table 1, the position offsets in the X, Y, and Z directions that are satisfied will cause the coupling coefficient to vary within a wide range of 0.088 - 0.245. The power P of the electric vehicle wireless power transmission system o max The expression is shown in the following formula (1):

[0038]

[0039] Among them, in the above formula (1), ω represents the working angular frequency of the system, which is generally a fixed value, Lga and Lva represent the self-inductances of the transmitting and receiving coils, k is the coupling coefficient, and Iga and Iva are the currents in the transmitting and receiving coils, and their maximum currents are Iga_max and Iva_max.

[0040] It can be understood that the value of Iga_max is proportional to the voltage of the inverter, and the value of Iva_max is proportional to the battery voltage. Therefore, when the BUCK circuit is used at the ground end to adjust Iga, the vehicle-mounted end cannot adjust the voltage value of the rectifier. Moreover, when the position of the electric vehicle is relatively off (the coupling coefficient k is small) and the battery voltage is low (Iva_max is small), the maximum output power Po_max of the system is extremely limited. Therefore, in the actual scenario, the coupling coefficient between the transmitting coil and the receiving coil is strongly related to its position. When the vehicle chassis is lower, its coupling coefficient is larger; when the vehicle chassis is higher, its coupling coefficient is smaller instead.

[0041] Figure 2It is a typical schematic diagram of a 10kW wireless charging system for electric vehicles according to one embodiment of the present invention. As Figure 2 shown in Figure 2 it includes an electromagnetic interference filter and a relay (EMI filter and relay), a power factor correction (PFC) module, a buck converter circuit (BUCK circuit) module, an inverter module, a ground-side resonant network, a transmitting coil, a receiving coil, a vehicle-mounted resonant network, and a rectifier module. Among them, the electromagnetic interference filter and the relay (EMI filter and relay) are used to suppress electromagnetic interference and control the switch of the electromagnet. The PFC module is used to convert industrial-frequency alternating current into a stable direct current voltage and ensure a unity power factor. The BUCK module is used for voltage regulation to provide a suitable direct current voltage for the inverter. The inverter module is used to convert the direct current voltage into a high-frequency alternating current voltage to obtain a high-frequency electric field for energy transmission. The ground-side resonant network is used to compensate for the inductance of the transmitting coil. The transmitting coil is used to transmit electromagnetic signals and inductance. The receiving coil is used to receive electromagnetic signals and inductance. The vehicle-mounted resonant network is used to compensate for the inductance of the receiving coil. The rectifier module is used to convert the high-frequency alternating current into a direct current to supply power to the battery.

[0042] Figure 2 After the input signal, the electromagnetic interference is suppressed and the switch of the electromagnet is controlled by the EMI filter and relay. The industrial-frequency alternating current is converted into a stable direct current voltage by the PFC module, and the voltage is regulated by the BUCK module to provide a suitable direct current voltage for the inverter. Then, the direct current voltage is converted into a high-frequency alternating current voltage by the inverter module. The inductance of the transmitting coil is compensated by the ground-side resonant network, and the inductance of the receiving coil is compensated by the vehicle-mounted resonant network. Finally, the high-frequency alternating current is converted into a direct current by the rectifier module to complete the battery power supply.

[0043] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0045] According to one embodiment of the present invention, an embodiment of a method for controlling the height of a vehicle chassis is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0046] This method embodiment can be executed in an electronic device, a similar control device or system including a memory and a processor. Taking the electronic device as an example, the electronic device can include one or more processors and a memory for storing data. Optionally, the above-mentioned electronic device can also include a communication device for communication functions and a display device. Those of ordinary skill in the art can understand that the above structural description is only illustrative and does not limit the structure of the above-mentioned electronic device. For example, the electronic device can also include more or fewer components than the above structural description, or have a configuration different from the above structural description.

[0047] The processor may include one or more processing units. For example, the processor may include a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a Digital Signal Processing (DSP) chip, a Micro Controller Unit (MCU), a Field-Programmable Gate Array (FPGA), a Neural-network Processing Unit (NPU), a Tensor Processing Unit (TPU), an Artificial Intelligent (AI) type processor, and other processing devices. Among them, different processing units may be independent components or integrated in one or more processors. In some instances, the electronic device may also include one or more processors.

[0048] The memory can be used to store computer programs. For example, it can store the computer program corresponding to the vehicle chassis height control method in the embodiments of the present invention. The processor realizes the above vehicle chassis height control method by running the computer program stored in the memory. The memory may include a high-speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memories. In some instances, the memory may further include a memory remotely set relative to the processor, and these remote memories can be connected to the electronic device through a network. Examples of the above network include but are not limited to the Internet, enterprise intranet, local area network, mobile communication network, and their combinations.

[0049] The communication device is used to receive or send data via a network. Specific examples of the above network may include the wireless network provided by the communication provider of the mobile terminal. In one instance, the communication device includes a Network Interface Controller (NIC), which can be connected to other network devices through a base station and thus communicate with the Internet. In one instance, the communication device may be a Radio Frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0050] The display device may be, for example, a touch-screen liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display enables a user to interact with the user interface of the mobile terminal. In some embodiments, the above-mentioned mobile terminal has a graphical user interface (GUI), and the user can perform human-computer interaction with the GUI through finger contacts and / or gestures on the touch-sensitive surface. The human-computer interaction function may optionally include the following interactions: creating web pages, drawing, word processing, creating electronic documents, games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital videos, playing digital music, and / or web browsing, etc. The executable instructions for performing the above human-computer interaction functions are configured / stored in a computer program product or a readable storage medium executable by one or more processors.

[0051] In this embodiment, a method for controlling the height of a vehicle chassis running on an electronic device is provided. Figure 3 It is a flowchart of a method for controlling the height of a vehicle chassis according to an embodiment of the present invention, as Figure 3 shown. The process includes the following steps:

[0052] Step S30: Determine the first current range and the first self-inductance of the transmitting coil, the second current range and the second self-inductance of the receiving coil, and the initial coupling coefficient between the transmitting coil and the receiving coil.

[0053] Among them, the transmitting coil and the receiving coil are used to transmit the energy provided by the charging pile to the vehicle's battery, and the initial coupling coefficient is determined by the initial current of the transmitting coil and the initial current of the receiving coil.

[0054] It can be understood that when the vehicle is wirelessly charged, the transmitting coil is located at the transmitting end on the ground, and the receiving coil is located at the vehicle-mounted receiving end, specifically at the vehicle chassis. That is, the transmitting coil is used to transmit the energy provided by the charging pile to the vehicle's battery, and the receiving coil is used to receive the energy provided by the charging pile to the vehicle's battery.

[0055] The first current range of the transmitting coil can be understood as the range of transmission current values that the transmitting coil can withstand, and the first self-inductance can be understood as the coil self-inductance value of the transmitting coil. It can be understood that when the transmitting coil leaves the factory, the range of transmission current values that can be withstood and the coil self-inductance value are set according to its own number of coil turns and material. Optionally, the range of transmission current values that the transmitting coil can emit and the coil self-inductance value can be read through a software program, so as to determine the first current range and the first self-inductance of the transmitting coil. The embodiments of the present invention are not limited thereto.

[0056] The second current range of the receiving coil can be understood as the range of transmission current values that the receiving coil can withstand, and the second self-inductance can be understood as the self-inductance value of the coil of the receiving coil. It can be understood that when the receiving coil leaves the factory, the range of transmission current values that can be withstood and the self-inductance value of the coil are set according to the number of turns and material of its own coil. Optionally, the range of transmission current values that the receiving coil can receive and the self-inductance value of the coil can be read through a software program, so as to determine the second current range and the second self-inductance of the receiving coil. The embodiments of the present invention are not limited thereto.

[0057] The initial coupling coefficient between the transmitting coil and the receiving coil is used to represent the degree of coincidence and matching between the transmitting coil and the receiving coil. It can be understood that the transmitting coil and the receiving coil are used to transmit the energy provided by the charging pile to the vehicle's battery, that is, the electromagnetic signal and current provided by the charging pile to the vehicle's battery are transmitted through the transmitting coil and the receiving coil. The degree of coincidence and matching between the two can determine the power of the transmitted energy. Exemplarily, the larger the initial coupling coefficient, the greater the maximum transmitted energy power of the transmitting coil and the receiving coil.

[0058] The initial coupling coefficient is determined by the first current of the transmitting coil and the second current of the receiving coil. It can be understood that after the transmitting coil and the receiving coil start to work, the initial coupling coefficient is determined by the initial current emitted by the transmitting coil and the initial current received by the receiving coil. Optionally, the initial current emitted by the transmitting coil can be denoted as I ga_init , and the initial current received by the receiving coil can be denoted as I va_init , and the output initial power can be denoted as P o_init , then the initial coupling coefficient k can be calculated and determined through a mathematical formula. The specific calculation process is shown in the following formula (2):

[0059]

[0060] Among them, ω in the above formula (2) represents the working angular frequency of the system, which is generally a fixed value. Thus, the initial coupling coefficient is determined.

[0061] Step S31, determine the target output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance and the initial coupling coefficient;

[0062] Among them, the target output power is the maximum output power of the battery, the first current is the maximum current in the first current range, and the second current is the maximum current in the second current range.

[0063] The target output power can be understood as the maximum power for energy transmission between the transmitting coil and the receiving coil. It can be understood that the greater the power of energy transmission between the transmitting coil and the receiving coil, the higher the energy transmission efficiency and the better the transmission performance. However, due to the limitations of the first current range and the first self-inductance of the transmitting coil, and the second current range and the second self-inductance of the receiving coil, the power of energy transmission between the transmitting coil and the receiving coil is limited. That is, the target output power is the maximum output power of the battery.

[0064] The first current can be understood as the maximum current that the transmitting coil can emit, that is, the maximum current in the first current range. The second current can be understood as the maximum current that the receiving coil can receive, that is, the maximum current in the second current range. Optionally, the first current can be denoted as I ga_max , and the second current can be denoted as I va_max , the first self-inductance can be denoted as L ga , the second self-inductance can be denoted as L va , the initial coupling coefficient is denoted as k, then the maximum output power P o_max of the battery can be calculated by the above formula (1), and thus the target output power is determined. The embodiments of the present invention are not limited thereto.

[0065] It can be understood that determining the target output power of the battery, that is, determining the maximum power of energy transmission between the transmitting coil and the receiving coil. Then, when the system is running, by comparing with the target output power, the gap between the current transmission power and the target output power can be known.

[0066] Step S32: Compare the target output power with the output power threshold to obtain a comparison result;

[0067] Among them, the output power threshold is determined according to the power coefficient of the control device and the expected output power. The control device is used to control the chassis height of the vehicle, and the expected output power is determined according to the specifications of the battery.

[0068] The output power threshold can be understood as the power threshold of the output energy required by the charging device system. The control device can be understood as a system device for adjusting the chassis height of the vehicle, such as an air suspension system. The embodiments of the present invention are not limited thereto.

[0069] It can be understood that the control device system has set the charging voltage and current required by the device at the time of production and factory. That is, the expected output power is determined according to the specifications of the battery. The power coefficient of the control device can be understood as a value representing the allowable power deviation percentage, generally a fixed value. Optionally, the power coefficient of the control device can be determined by reading the value through a software program. The embodiments of the present invention are not limited thereto.

[0070] The output power threshold is determined according to the power coefficient of the control device and the desired output power. It can be understood that it is determined according to the value of the percentage of power deviation allowed by the control device and the required charging power. Optionally, it can be determined by a mathematical expression, which is not limited in the embodiments of the present invention.

[0071] This step can be understood as comparing the maximum power transmitted between the transmitting coil and the receiving coil with the power threshold of the output energy required by the charging device system to obtain a comparison result.

[0072] Step S33, adjust the chassis height of the vehicle based on the comparison result.

[0073] Compare the target output power with the output power threshold. After obtaining the comparison result, when the comparison result indicates that the target output power is greater than the output power threshold, that is, the maximum power transmitted between the transmitting coil and the receiving coil is greater than the power threshold of the output energy required by the charging device system, it means that the transmission power of the current charging device system can meet the current charging requirements. Optionally, at this time, the chassis height of the vehicle can be adjusted to increase the distance between the vehicle chassis and the ground charging end, that is, to increase the distance between the transmitting coil and the receiving coil, thereby reducing the initial coupling system and further reducing the target output power to avoid the problem of resource waste caused by excessive performance.

[0074] When the comparison result indicates that the target output power is less than the output power threshold, that is, the maximum power transmitted between the transmitting coil and the receiving coil is less than the power threshold of the output energy required by the charging device system, it means that the transmission power of the current charging device system cannot meet the current charging requirements. Optionally, at this time, the chassis height of the vehicle can be adjusted to reduce the distance between the vehicle chassis and the ground charging end, that is, to reduce the distance between the transmitting coil and the receiving coil, thereby increasing the initial coupling system and further increasing the target output power so that the transmission power of the charging device system meets the current charging requirements.

[0075] Through the above steps, by determining the first current range and the first self-inductance of the transmitting coil, the second current range and the second self-inductance of the receiving coil, and the initial coupling coefficient between the transmitting coil and the receiving coil, wherein the transmitting coil and the receiving coil are used to transmit the energy provided by the charging pile to the vehicle battery, the initial coupling coefficient is determined by the first current of the transmitting coil and the second current of the receiving coil, the first current is the maximum current in the first current range, the second current is the maximum current in the second current range, then determining the maximum output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance and the initial coupling coefficient, and comparing the target output power with the output power threshold to obtain a comparison result, wherein the output power threshold is determined according to the power coefficient of the control device and the desired output power, the control device is used to control the chassis height of the vehicle, the desired output power is determined according to the specifications of the battery, and finally adjusting the chassis height of the vehicle based on the comparison result. Thus, when the battery voltage is low and the offset is large (coupling coefficient is low), the chassis height of the vehicle can be automatically adjusted to increase the coupling between the transmitting coil and the receiving coil of the wireless charging system, further improving the transmission power of the electric vehicle wireless charging system, and then solving the technical problem that the power of the wireless charging system in the related technology is strongly related to the in-vehicle device and the ground device, so that the power transmission ability of the system is greatly reduced when the battery voltage is low and the offset degree is large, resulting in low charging efficiency.

[0076] Optionally, in step S32, the output power threshold includes a first output power threshold, and the first output power threshold is used to represent the maximum output power that satisfies the power transmission ability. Comparing the target output power with the output power threshold to obtain a comparison result may include the following execution steps:

[0077] Step S320, in response to the target output power being greater than the first output power threshold, obtaining a first comparison result.

[0078] Wherein, the first comparison result is used to represent raising the chassis of the vehicle.

[0079] The first output power threshold is used to represent the maximum output power that satisfies the power transmission ability, which can be understood as when the charging power reaches the first output power threshold, it means that the current charging power has exceeded the charging demand.

[0080] This step can be understood as that when the target output power is greater than the first output power threshold, that is, the maximum power for transmitting energy between the current transmitting coil and the receiving coil is greater than the maximum output power of the power transmission ability required by the charging device system, it means that the transmission power of the current charging device system has exceeded the charging requirement, and at this time, the first comparison result is obtained.

[0081] The first comparison result is used to indicate raising the chassis of the vehicle. It can be understood that when the target output power is greater than the first output power threshold, it means that the transmission power of the current charging device system has exceeded the charging requirement, and the transmission power of the current charging device system needs to be reduced, that is, the target output power is reduced, so as to avoid waste of resources.

[0082] It can be understood that the target output power is determined according to the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient. The distance between the transmitting coil and the receiving coil can affect the magnitude of the initial coupling coefficient. Therefore, by raising the chassis height of the vehicle to increase the distance between the transmitting coil and the receiving coil, the initial coupling system is reduced, and then the target output power is reduced, avoiding the problem of waste of resources caused by over-performance, that is, the first comparison result is used to indicate raising the chassis of the vehicle.

[0083] Optionally, the first comparison result can be obtained by comparing the mathematical expressions of the target output power and the first output power threshold, which is not limited in the embodiments of the present invention. Exemplarily, the target output power calculated according to formula (1) is denoted as P o_max , the output power threshold determined according to the power coefficient of the control device and the desired output power is denoted as P ref , the first output power threshold is denoted as (1 + m)P ref , by comparing the magnitude relationship between P o_max and (1 + m)P ref , when P o_max is greater than (1 + m)P reff , the first comparison result is obtained.

[0084] Optionally, in step S32, the output power threshold further includes a second output power threshold, and the second output power threshold is used to represent the minimum output power that satisfies the power transmission ability, and the following execution steps can also be included:

[0085] Step S321, in response to the target output power being less than the second output power threshold, a second comparison result is obtained.

[0086] Wherein, the second comparison result is used to indicate lowering the chassis of the vehicle.

[0087] The second output power threshold is used to represent the minimum output power that satisfies the power transmission ability. It can be understood that when the charging power does not reach the second output power threshold, it means that the current charging power cannot meet the charging requirement.

[0088] This step can be understood as follows: when the target output power is less than the second output power threshold, that is, the maximum power transmitted between the current transmitting coil and the receiving coil is less than the minimum output power of the power transmission capacity required by the charging device system, it means that the transmission power of the current charging device system cannot meet the current charging requirements. At this time, a second comparison result is obtained.

[0089] The second comparison result is used to indicate lowering the chassis of the vehicle. It can be understood that when the target output power is less than the second output power threshold, it means that the transmission power of the current charging device system cannot meet the current charging requirements, and the transmission power of the current charging device system needs to be increased to ensure that the current charging requirements are met.

[0090] It can be understood that the target output power is determined according to the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient. The distance between the transmitting coil and the receiving coil can affect the magnitude of the initial coupling coefficient. Therefore, by lowering the chassis height of the vehicle to reduce the distance between the transmitting coil and the receiving coil, the initial coupling system is increased, and then the target output power is increased to ensure that the current charging requirements are met, that is, the second comparison result is used to indicate lowering the chassis of the vehicle.

[0091] Optionally, the second comparison result can be obtained by comparing the mathematical expressions of the target output power and the second output power threshold, which is not limited in the embodiments of the present invention. Exemplarily, the target output power calculated according to formula (1) is denoted as P o_max , the output power threshold determined according to the power coefficient of the control device and the desired output power is denoted as P ref , the second output power threshold is denoted as (1 - m)P ref , by comparing the magnitude relationship between P o_max and (1 - m)P ref , when P o_max is less than (1 - m)P ref , a second comparison result is obtained.

[0092] Optionally, in step S32, the following execution steps may further be included:

[0093] Step S322, in response to the target output power being less than or equal to the first output power threshold and greater than or equal to the second output power threshold, a third comparison result is obtained.

[0094] Wherein, the third comparison result is used to indicate keeping the chassis height of the vehicle unchanged.

[0095] It can be understood that the first output power threshold is used to represent the maximum output power that satisfies the power transmission capacity, and the second output power threshold is used to represent the minimum output power that satisfies the power transmission capacity. That is, when the charging power is less than or equal to the first output power threshold and greater than or equal to the second output power threshold, the current charging requirements can be met.

[0096] This step can be understood as follows: when the target output power is less than or equal to the first output power threshold and greater than or equal to the second output power threshold, that is, the maximum power transmitted between the current transmitting coil and the receiving coil is less than or equal to the maximum output power that satisfies the power transmission capacity and greater than or equal to the minimum output power that satisfies the power transmission capacity, it indicates that the transmission power of the current charging device system can meet the current charging requirements. At this time, a third comparison result is obtained.

[0097] The third comparison result is used to represent lowering the vehicle's chassis. It can be understood that when the target output power is less than or equal to the first output power threshold and greater than or equal to the second output power threshold, it indicates that the transmission power of the current charging device system can meet the current charging requirements. At this time, the current state can be maintained to ensure continuous satisfaction of the current charging requirements.

[0098] It can be understood that the target output power is determined based on the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient. Moreover, the distance between the transmitting coil and the receiving coil can affect the magnitude of the initial coupling coefficient. Therefore, by keeping the vehicle's chassis height unchanged, the distance between the transmitting coil and the receiving coil is ensured to be unchanged, thereby ensuring that the initial coupling system remains unchanged, and further ensuring that the target output power remains unchanged to ensure continuous satisfaction of the current charging requirements. That is, the third comparison result is used to represent keeping the vehicle's chassis height unchanged.

[0099] Optionally, the second comparison result can be obtained by comparing the mathematical expressions of the target output power and the second output power threshold, which is not limited in the embodiments of the present invention. Exemplarily, the target output power calculated according to formula (1) is denoted as P o_max , the output power threshold determined according to the power coefficient of the control device and the desired output power is denoted as P ref , the first output power threshold is denoted as (1 + m)P ref , the second output power threshold is denoted as (1 - m)P ref , by comparing P o_max with (1 - m)P ref , (1 + m)P ref and the size relationship between them, when P o_max is less than or equal to (1 + m)P ref and greater than or equal to (1 - m)P ref , a third comparison result is obtained.

[0100] Optionally, in step S32, the following execution steps may further be included:

[0101] Step S323, update the initial coupling coefficient to obtain a target coupling coefficient.

[0102] Wherein, the target coupling coefficient is used to adjust the chassis height of the vehicle.

[0103] It can be understood that after comparing the target output power with the output power threshold to obtain the first, second, and third comparison results, the chassis height of the vehicle is adjusted respectively based on each comparison result, resulting in a change in the distance between the transmitting coil and the receiving coil, and then the initial coupling coefficient changes, that is, the initial coupling coefficient is updated.

[0104] The target coupling coefficient is used to adjust the chassis height of the vehicle. It can be understood that the target coupling coefficient is the coupling coefficient after adjusting the chassis height of the vehicle according to the comparison result, and the target coupling coefficient represents the degree of matching between the adjusted transmitting coil and the receiving coil. According to this matching degree, the adjusted target output power can be determined again, so as to compare the adjusted target output power with the output power threshold again to adjust the chassis height of the vehicle to a suitable position, thereby ensuring the normal operation of the charging process.

[0105] Optionally, in step S33, adjusting the chassis height of the vehicle based on the comparison result may include the following execution steps:

[0106] Step S330, determine the adjustment range of the control device;

[0107] Wherein, the adjustment range is used to represent the range of adjustment of the chassis height;

[0108] It can be understood that when the control device leaves the factory, its adjustment range has been set. The adjustment range is used to represent the range of adjustment of the chassis height. For example, in the air suspension system of a vehicle, optionally, the height range of the liftable chassis of the air suspension system can be read through a software program, that is, the adjustment range of the control device is determined.

[0109] It can be understood that the adjustment range of the control device limits the adjustment range that the device can execute. For example, when exceeding this adjustment range, it may cause damage to the control device, etc.

[0110] Step S331, adjust the chassis height of the vehicle according to the comparison result and the adjustment range.

[0111] This step can be understood as after obtaining the comparison result, adjusting the chassis height of the vehicle according to the specific content of the comparison result and the adjustment range that the control device can execute.

[0112] Exemplarily, when the comparison result is the first result, the chassis height of the vehicle can be gradually increased within the adjustment range to reduce the target output power; when the comparison result is the second result, the chassis height of the vehicle can be gradually decreased within the adjustment range to increase the target output power.

[0113] Through the above steps, in the embodiments of the present invention, by comparing the target output power with the output power threshold, the height of the vehicle chassis can be automatically adjusted to a suitable position to adjust the coupling coefficient between the transmitting coil and the receiving coil of the wireless charging system, so as to adjust the transmission power, and further realize dynamic adjustment, and further improve the transmission power of the wireless charging system under the conditions of low battery voltage and low coupling coefficient.

[0114] Figure 4 is a flowchart of improving the power transmission ability of an electric vehicle wireless charging system based on an air suspension system according to an embodiment of the present invention, as Figure 4 shown, comprehensively illustrating the specific implementation process of the above steps. After the system starts running, first determine the maximum current and self-inductance of the transmitting coil, and the maximum current and self-inductance of the receiving coil (i.e., step S30); and determine the range that the air suspension can adjust the vehicle chassis, so as to determine the desired output power (i.e., step S32); then determine the power coefficient that requires the air suspension to adjust the height, and detect the coupling coefficient of the transmitting coil and the receiving coil, and calculate the power transmission ability according to the formula (i.e., step S31); and judge when P o_max is greater than (1 + m)P ref , use the air suspension system to increase the height of the electric vehicle chassis. When P o_max is less than (1 - m)P ref , use the air suspension system to lower the height of the electric vehicle chassis. When P o_max is less than or equal to (1 + m)P ref and greater than or equal to (1 - m)P ref , keep the height of the electric vehicle chassis unchanged and end the process (i.e., step S33).

[0115] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that makes a contribution to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the embodiments of the present invention.

[0116] In this embodiment, a vehicle chassis height control device is also provided. This device is used to implement the above-mentioned embodiments and preferred implementation manners, and those that have been described will not be repeated. As used hereinafter, the term "module" can be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0117] Figure 5 is a structural block diagram of a vehicle chassis height control device according to an embodiment of the present invention. As Figure 5 shown, taking the vehicle chassis height control device 500 as an example, the device includes: a first determination module 501, the first determination module 501 is used to determine the first current range and the first self-inductance of the transmitting coil, the second current range and the second self-inductance of the receiving coil, and the initial coupling coefficient between the transmitting coil and the receiving coil. Among them, the transmitting coil and the receiving coil are used to transmit the energy provided by the charging pile to the vehicle's battery, and the initial coupling coefficient is determined by the initial current of the transmitting coil and the initial current of the receiving coil; a second determination module 502, the second determination module 502 is used to determine the target output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient. Among them, the target output power is the maximum output power of the battery, the first current is the maximum current in the first current range, and the second current is the maximum current in the second current range; a comparison module 503, the comparison module 503 is used to compare the target output power with an output power threshold to obtain a comparison result. Among them, the output power threshold is determined according to the power coefficient of the control device and the desired output power, and the control device is used to control the chassis height of the vehicle, and the desired output power is determined according to the specifications of the battery; an adjustment module 504, the adjustment module 504 is used to adjust the chassis height of the vehicle based on the comparison result.

[0118] Optionally, the comparison module 503 is further used to obtain a first comparison result in response to the target output power being greater than a first output power threshold, where the first comparison result is used to indicate raising the chassis of the vehicle.

[0119] Optionally, the comparison module 503 is further used to obtain a second comparison result in response to the target output power being less than a second output power threshold, where the second comparison result is used to indicate lowering the chassis of the vehicle.

[0120] Optionally, the comparison module 503 is further used to obtain a third comparison result in response to the target output power being less than or equal to the first output power threshold and greater than or equal to the second output power threshold, where the third comparison result is used to indicate keeping the chassis height of the vehicle unchanged.

[0121] Optionally, the comparison module 503 is further configured to update the initial coupling coefficient to obtain a target coupling coefficient, where the target coupling coefficient is used to adjust the chassis height of the vehicle.

[0122] Optionally, the adjustment module 504 is further configured to determine the adjustment range of the control device, where the adjustment range is used to represent the range of adjustment of the chassis height; and adjust the chassis height of the vehicle according to the comparison result and the adjustment range.

[0123] It should be noted that the above-mentioned modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to this: the above-mentioned modules are all located in the same processor; or, the above-mentioned modules are respectively located in different processors in any combination form.

[0124] An embodiment of the present application further provides a vehicle, which is used to execute the steps in any one of the above method embodiments.

[0125] Optionally, in this embodiment, the above vehicle can be set to store a computer program for executing the following steps:

[0126] Step S1, determine the first current range and the first self-inductance of the transmitting coil, the second current range and the second self-inductance of the receiving coil, and the initial coupling coefficient between the transmitting coil and the receiving coil;

[0127] Step S2, determine the target output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient;

[0128] Step S3, compare the target output power with the output power threshold to obtain a comparison result;

[0129] Step S4, adjust the chassis height of the vehicle based on the comparison result.

[0130] An embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored, where the computer program is configured to execute the steps in any one of the above method embodiments when running on a computer or a processor.

[0131] Optionally, in this embodiment, the above computer-readable storage medium can be set to store a computer program for executing the following steps:

[0132] Step S1, determine the first current range and the first self-inductance of the transmitting coil, the second current range and the second self-inductance of the receiving coil, and the initial coupling coefficient between the transmitting coil and the receiving coil;

[0133] Step S2, determine the target output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient;

[0134] Step S3: Compare the target output power with the output power threshold to obtain a comparison result;

[0135] Step S4: Adjust the chassis height of the vehicle based on the comparison result.

[0136] Optionally, in this embodiment, the above computer-readable storage medium may include, but is not limited to: various media such as USB flash drives, read-only memory (ROM), random access memory (RAM), mobile hard disks, magnetic disks, or optical discs that can store computer programs.

[0137] An embodiment of the present invention also provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0138] Optionally, in this embodiment, the processor in the above electronic device may be configured to run the computer program to execute the following steps:

[0139] Step S1: Determine the first current range and the first self-inductance of the transmitting coil, the second current range and the second self-inductance of the receiving coil, and the initial coupling coefficient between the transmitting coil and the receiving coil;

[0140] Step S2: Determine the target output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient;

[0141] Step S3: Compare the target output power with the output power threshold to obtain a comparison result;

[0142] Step S4: Adjust the chassis height of the vehicle based on the comparison result.

[0143] Optionally, specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and will not be elaborated herein.

[0144] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments.

[0145] In the above embodiments of the present invention, the descriptions of each embodiment have their own focuses. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0146] In several embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of units or modules can be in electrical or other forms.

[0147] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0148] In addition, in each embodiment of the present invention, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0149] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present invention. The foregoing storage medium includes: various media such as USB flash drives, read-only memories (ROMs), random access memories (RAMs), mobile hard disks, magnetic disks, or optical discs that can store program codes.

[0150] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A vehicle chassis height control method, characterized in that, Including: Determine a first current range and a first self-inductance of the transmitting coil, a second current range and a second self-inductance of the receiving coil, and an initial coupling coefficient between the transmitting coil and the receiving coil, wherein the transmitting coil and the receiving coil are used to transfer the energy provided by the charging pile to the battery of the vehicle, and the initial coupling coefficient is determined by the initial current of the transmitting coil and the initial current of the receiving coil; Determine a target output power of the battery according to the first current, the first self-inductance, the second current, the second self-inductance, and the initial coupling coefficient, wherein the target output power is the maximum output power of the battery, the first current is the maximum current in the first current range, and the second current is the maximum current in the second current range; Compare the target output power with an output power threshold to obtain a comparison result, wherein the output power threshold is determined according to a power coefficient of the control device and a desired output power, the control device is used to control the chassis height of the vehicle, and the desired output power is determined according to the specification of the battery; Adjust the chassis height of the vehicle based on the comparison result.

2. The method according to claim 1, characterized in that The output power threshold includes a first output power threshold, and the first output power threshold is used to represent the maximum output power that satisfies the power transmission ability. The comparing the target output power with the output power threshold to obtain a comparison result includes: In response to the target output power being greater than the first output power threshold, obtain a first comparison result, wherein the first comparison result is used to represent raising the chassis of the vehicle.

3. The method according to claim 2, wherein The output power threshold further includes a second output power threshold, and the second output power threshold is used to represent the minimum output power that satisfies the power transmission ability. It further includes: In response to the target output power being less than the second output power threshold, obtain a second comparison result, wherein the second comparison result is used to represent lowering the chassis of the vehicle.

4. The method according to claim 3, wherein It further includes: In response to the target output power being less than or equal to the first output power threshold and greater than or equal to the second output power threshold, obtain a third comparison result, wherein the third comparison result is used to represent keeping the chassis height of the vehicle unchanged.

5. The method according to claim 2 or 3, characterized in that, It further includes: Update the initial coupling coefficient to obtain a target coupling coefficient, wherein the target coupling coefficient is used to adjust the chassis height of the vehicle.

6. The method according to claim 1, characterized in that, The adjusting the chassis height of the vehicle based on the comparison result includes: Determine an adjustment range of the control device, wherein the adjustment range is used to represent the range of adjustment of the chassis height; Adjust the chassis height of the vehicle according to the comparison result and the adjustment range.

7. A vehicle chassis height control device, characterized in that, Including: A first determination module, which is used to determine a first current range and a first self-inductance of the transmitting coil, a second current range and a second self-inductance of the receiving coil, and an initial coupling coefficient between the transmitting coil and the receiving coil, wherein the transmitting coil and the receiving coil are used to transfer the energy provided by the charging pile to the battery of the vehicle, and the initial coupling coefficient is determined by the initial current of the transmitting coil and the initial current of the receiving coil; A second determination module, configured to determine a target output power of the battery according to a first current, the first self-inductance, a second current, the second self-inductance, and the initial coupling coefficient, where the target output power is the maximum output power of the battery, the first current is the maximum current in the first current range, and the second current is the maximum current in the second current range; A comparison module, configured to compare the target output power with an output power threshold to obtain a comparison result, where the output power threshold is determined according to a power coefficient of a control device and an expected output power, the control device is configured to control a chassis height of the vehicle, and the expected output power is determined according to the specification of the battery; An adjustment module, configured to adjust the chassis height of the vehicle based on the comparison result.

8. A vehicle, characterized in that, The vehicle is configured to execute the vehicle chassis height control method according to any one of claims 1 to 6 above.

9. A computer-readable storage medium, characterized in that, A computer program is stored in the computer-readable storage medium, where the computer program is configured to execute the vehicle chassis height control method according to any one of claims 1 to 6 above when running on a computer or a processor.

10. An electronic device, comprising a memory and a processor, characterized in that, A computer program is stored in the memory, and the processor is configured to run the computer program to execute the vehicle chassis height control method according to any one of claims 1 to 6 above.

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