Charging and discharging control method and device for automobile starting power supply

Abstract

The invention relates to the technical field of automobiles, and provides a charging and discharging control method and device for an automobile starting power supply, the charging and discharging control method and device are applied to an automobile starting control system, the control system comprises a control unit, a battery unit and a super capacitor unit, and the control method comprises the steps of obtaining a starting signal of the starting power supply based on the control unit; performing analog-to-digital conversion on the starting signal to obtain a digital signal; filtering the digital signal to obtain an output signal; amplifying the output signal to obtain an amplified signal, and performing level conversion on the amplified signal to obtain a charge-discharge control signal; and controlling the super capacitor unit to charge and discharge the starting power supply according to the charge and discharge control signal. Through processing modes of analog-to-digital conversion, filtering, logical operation, level conversion and the like, the accuracy and the stability of signals are ensured, the response speed and the reliability of the starting power supply are improved, and the problems of low energy conversion efficiency and response time delay in an extreme temperature condition or battery aging are solved.

Description

Technical Field

[0001] The present application relates to the technical field of automobiles, and in particular to a method and device for controlling the charging and discharging of an automobile starting power supply. Background Art

[0002] With the rapid development of the automotive industry, the reliability and efficiency of the automotive power system, especially the starting power supply, has become the focus of attention of manufacturers and consumers. The automotive starting power supply must not only ensure sufficient starting efficiency, but also have good energy management and maintain the battery life, especially in various driving environments.

[0003] In the related technical means, traditional lead-acid batteries or lithium batteries are combined with supercapacitors as starting power sources. This combination uses batteries to provide continuous power supply, while supercapacitors provide high peak current at the moment of starting, working together to improve starting efficiency and power management flexibility. This system usually includes a battery management system (BMS) and an energy control unit to achieve efficient conversion and distribution of energy between batteries and supercapacitors.

[0004] Regarding the above technical solution, although the combination of batteries and supercapacitors can provide higher starting efficiency and better energy utilization efficiency, there are problems of low energy conversion efficiency and delayed response time under extreme temperature conditions or battery aging, which limits the overall performance and reliability of the starting system. Summary of the invention

[0005] In order to improve the problems of low energy conversion efficiency and delayed response time under extreme temperature conditions or battery aging, the present application provides a charging and discharging control method and device for an automobile starting power supply.

[0006] The present invention provides a charge and discharge control method for an automobile starting power supply, which is applied to an automobile starting control system. The control system includes a control unit, a battery unit and a super capacitor unit. The control method includes: obtaining a starting signal of the starting power supply based on the control unit, performing analog-to-digital conversion on the starting signal to obtain a digital signal; filtering the digital signal to obtain a first processing signal and a second processing signal, generating a correction signal based on the first processing signal, performing a logic operation on the correction signal and the second processing signal to obtain an output signal; amplifying the output signal to obtain an amplified signal, and controlling the connectivity between the battery unit and the super capacitor unit according to the amplified signal; when the battery unit is connected to the super capacitor unit, performing level conversion on the amplified signal to obtain a charging signal and a discharging signal of the starting power supply; performing signal shaping on the charging signal and the discharging signal to obtain a charging and discharging control signal; and controlling the super capacitor unit to charge and discharge the starting power supply according to the charging and discharging control signal.

[0007] As a preferred solution, the step of obtaining the engine start signal based on the control unit, performing analog-to-digital conversion on the start signal, and obtaining a digital signal includes: monitoring the voltage fluctuation of the start power supply by the control unit to obtain the start signal; The start signal is sampled and quantized by a high-speed analog-to-digital converter to obtain a voltage sampling value and a current sampling value; the voltage sampling value is denoised by multiplexing to obtain a pure voltage signal; the pure voltage signal and the current sampling value are phase-aligned to obtain a digital signal.

[0008] As a preferred solution, the steps of filtering the digital signal to obtain a first processed signal and a second processed signal, generating a correction signal based on the first processed signal, and performing a logical operation on the correction signal and the second processed signal to obtain an output signal include: performing bandpass filtering on the digital signal through a digital filter to obtain a spectrum signal, a current signal and a reference signal; performing frequency selection on the spectrum signal using a fast Fourier transform to obtain a frequency signal and a phase signal, performing harmonic compensation on the current signal through the frequency signal to obtain a first processed signal; performing incremental detection using the phase signal and the reference signal to obtain a second processed signal; The first processed signal and the second processed signal are synthesized according to a fuzzy logic algorithm to obtain a corrected signal; and the corrected signal and the second processed signal are logically operated by Boolean algebra to obtain an output signal.

[0009] As a preferred solution, the step of amplifying the output signal to obtain an amplified signal includes: linearly amplifying the amplitude of the output signal through an operational amplifier to obtain an amplified output; performing gain adjustment on the amplified output using a gain control algorithm to obtain a gain adjustment signal and a reference adjustment signal, performing modulation correction on the gain adjustment signal through amplitude modulation to obtain a modulated signal, and adjusting the flatness of the reference adjustment signal according to the modulated signal to obtain a differential signal; performing phase shift processing on the differential signal to obtain a positive phase signal and a negative phase signal; performing distortion compensation on the positive phase signal through impedance matching to obtain a compensation signal, and performing signal enhancement on the compensation signal in combination with power factor correction to obtain an enhanced signal; performing voltage adjustment on the negative phase signal through a feedback network to obtain an adjustment signal, and performing precision optimization on the enhanced signal based on the adjustment signal to obtain an amplified signal.

[0010] As a preferred solution, the step of level converting the amplified signal to obtain a charging signal and a discharging signal for starting the power supply includes: limiting the amplitude of the amplified signal by a level converter to obtain a primary conversion signal, a signal segment and a compression signal, applying a limiting filter to filter the primary conversion signal to obtain a low-pass signal and a high-pass signal, using the low-pass signal to perform edge detection on the signal segment to obtain an identification signal, dynamically compressing the high-pass signal and the compression signal to obtain a compression processing signal; logically combining the compression processing signal with the identification signal to obtain a charging signal; using a linear level conversion technology to phase synchronize the charging signal to obtain a synchronization signal and an offset signal, flipping the polarity of the synchronization signal to obtain a flipping signal, and adjusting the amplitude of the offset signal to obtain an adjusted offset signal; and merging the flipping signal with the adjusted offset signal to obtain a discharge signal.

[0011] As a preferred embodiment, the step of performing signal shaping on the charging signal and the discharging signal to obtain the charging and discharging control signal includes: performing phase correction on the charging signal and the discharging signal through a waveform shaping circuit to obtain a phase matching signal and a reference signal; performing amplitude-frequency optimization on the phase matching signal to obtain an optimized amplitude-frequency signal, and comparing the amplitude of the optimized amplitude-frequency signal with the reference signal to obtain a comparison signal; performing frequency domain conversion on the comparison signal using an amplitude converter to obtain a frequency domain signal, performing pulse shaping on the frequency domain signal to obtain a pulse signal and a DC deviation signal, performing harmonic modulation on the pulse signal to obtain a harmonic modulation signal, and performing DC offset correction on the DC deviation signal using the harmonic modulation signal to generate a charging and discharging control signal.

[0012] As a preferred embodiment, the step of controlling the supercapacitor unit to charge and discharge the power supply according to the charge and discharge control signal includes: performing power analysis on the charge and discharge control signal through a charge and discharge control circuit to obtain a frequency component, performing no-load voltage regulation on the frequency component to obtain an regulated voltage signal and an regulated current signal; performing amplitude adjustment on the regulated voltage signal to obtain a voltage stabilization signal, performing dynamic load regulation on the regulated current signal using the voltage stabilization signal to obtain a dynamic current signal, and controlling the charge and discharge path of the supercapacitor unit according to the dynamic current signal.

[0013] The present application also provides a charge and discharge control device for an automobile starting power supply, which is applied to an automobile starting control system, wherein the control system includes a control unit, a battery unit and a super capacitor unit, and the device includes: an acquisition module, which is used to acquire a starting signal of the starting power supply based on the control unit, and perform analog-to-digital conversion on the starting signal to obtain a digital signal; a filtering module, which is used to perform filtering processing on the digital signal to obtain a first processing signal and a second processing signal, generate a correction signal based on the first processing signal, and perform a logical operation on the correction signal and the second processing signal to obtain an output signal; an amplification module, which is used to amplify the output signal to obtain an amplified signal, and control the connectivity between the battery unit and the super capacitor unit according to the amplified signal; a conversion module, which is used to perform level conversion on the amplified signal when the battery unit is connected to the super capacitor unit to obtain a charging signal and a discharging signal of the starting power supply; a shaping module, which is used to use the charging signal as the charging signal of the power supply, perform signal shaping on the charging signal and the discharging signal, and obtain a charge and discharge control signal; and a charge and discharge module, which is used to control the super capacitor unit to charge and discharge the starting power supply according to the charge and discharge control signal.

[0014] The present application also provides an electronic device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the computer program, the above-mentioned method for controlling the charging and discharging of the automobile starting power supply is implemented.

[0015] The present application also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the processor executes the above-mentioned method for controlling the charge and discharge of a vehicle starting power supply.

[0016] Compared with the prior art, the present application has the following beneficial effects: high conversion efficiency and fast response speed. Through processing methods such as analog-to-digital conversion, filtering, logical operation and level conversion, the accuracy and stability of the signal are ensured, and the response speed and reliability of the starting power supply are improved. At the same time, the use of amplified signals enhances the connectivity control between the battery unit and the supercapacitor unit, making the energy transfer more efficient. Then, through the charge and discharge control signal, the supercapacitor unit can be quickly charged or discharged when needed, optimizing the utilization of energy, reducing energy loss, increasing the overall efficiency and the service life of the battery, and effectively improving the performance and economic benefits of the automobile starting power supply system, and improving the problems of low energy conversion efficiency and delayed response time under extreme temperature conditions or battery aging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0019] Figure 1 It is a flow chart of a method for controlling charging and discharging of a vehicle starting power supply provided by an embodiment of the present invention; Figure 2 It is a schematic block diagram of the structure of a charge and discharge control device for an automobile starting power supply provided by an embodiment of the present invention; Figure 3 It is a schematic block diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0020] Description of reference numerals: 10. A charge and discharge control device for a vehicle starting power supply; 11. An acquisition module; 12. A filtering module; 13. An amplification module; 14. A conversion module; 15. A shaping module; 16. A charge and discharge module; 20. An electronic device; 21. A memory; 22. A processor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0023] It should also be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0024] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0025] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0026] Embodiment 1: The present application provides a charge and discharge control method for an automobile starting power supply, which is applied to an automobile starting control system. The control system includes a control unit, a battery unit, and a supercapacitor unit. The control method includes steps S100 to S600.

[0027] Step S100: obtaining a start signal for starting the power supply based on the control unit, performing analog-to-digital conversion on the start signal to obtain a digital signal.

[0028] In this step, the control unit first identifies the electrical signal from the vehicle start button; specifically, this signal is converted into a digital signal through an analog-to-digital converter to facilitate subsequent electronic processing.

[0029] For example, if the start button is pressed, the traditional analog signal is converted into digital form of 0s and 1s, which is convenient for the control unit to quickly identify and process.

[0030] Step S200: filter the digital signal to obtain a first processed signal and a second processed signal, generate a correction signal based on the first processed signal, perform a logical operation on the correction signal and the second processed signal, and obtain an output signal.

[0031] In this step, the digital signal is first filtered to remove noise to ensure the clarity and accuracy of the signal; specifically, the first processed signal is used to generate the correction signal required to adjust the control logic, while the second processed signal continues to maintain the original characteristics to participate in subsequent logical operations.

[0032] For example, the filtering process may use a low-pass filter to remove high-frequency interference, and the first processed signal may be adjusted by a logic circuit and then be ANDed or ORed with the second processed signal to output the signal for the next step of signal amplification.

[0033] Step S300: amplify the output signal to obtain an amplified signal, and control the connectivity between the battery unit and the supercapacitor unit according to the amplified signal.

[0034] In this step, the amplitude of the output signal is enhanced by a signal amplifier to drive a switching device between the battery and the supercapacitor unit; specifically, the amplified signal can activate a relay or other switching component to achieve efficient connectivity between the battery and the supercapacitor.

[0035] For example, the amplified signal can directly drive a relay to close, thereby physically connecting the battery cell and the supercapacitor cell to achieve rapid energy exchange.

[0036] Step S400: When the battery unit is connected to the supercapacitor unit, the amplified signal is level-converted to obtain a charging signal and a discharging signal for starting the power supply.

[0037] In this step, once the connectivity between the battery and the supercapacitor is confirmed, the amplified signal is adjusted to a level suitable for charging and discharging through a level conversion device; specifically, the converted signal directly controls the charging and discharging state of the supercapacitor unit.

[0038] For example, the level conversion device can adjust the amplified signal to a high level to start the charging process, or to a low level to start the discharging process, ensuring a fast response of the supercapacitor unit.

[0039] Step S500: performing signal shaping on the charging signal and the discharging signal to obtain a charging and discharging control signal.

[0040] In this step, the charging and discharging signals are precisely adjusted by a signal shaper to meet the specific requirements of the charging and discharging process; specifically, after signal shaping, the charging and discharging efficiency of the supercapacitor unit can be optimized and energy loss can be reduced.

[0041] For example, a signal shaper can adjust the waveform of the charging and discharging signal and optimize the charging curve or the discharging curve to improve the efficiency of energy conversion and the reliability of the power supply.

[0042] Step S600: Control the supercapacitor unit to charge and discharge the starting power supply according to the charge and discharge control signal.

[0043] In this step, the final charge and discharge control signal will directly act on the supercapacitor unit to achieve accurate charging and discharging of the starting power supply; specifically, by carefully adjusting the control signal, the performance of the supercapacitor can be maximized and its service life can be extended.

[0044] For example, by adjusting the frequency and amplitude of the charge and discharge control signal, the supercapacitor unit can be controlled to maintain the optimal charge and discharge state under different working conditions and adapt to various startup scenarios.

[0045] It should be noted that the battery unit does not participate in the charging and discharging process of the starting power supply when the supercapacitor unit is charging and discharging the starting power supply. Only when the supercapacitor unit is out of power, the BMS controls the battery unit to charge the supercapacitor unit through signal feedback. Normally, the battery unit only supplies power to the loads in the vehicle.

[0046] In this embodiment, a start-up signal of a start-up power supply is obtained by a control unit, and the start-up signal is converted from analog to digital to obtain a digital signal. Subsequently, the digital signal is filtered to obtain a first processing signal and a second processing signal, respectively. Next, a correction signal is generated based on the first processing signal, and the correction signal is logically operated with the second processing signal to generate an output signal. After the output signal is amplified, an amplified signal is obtained, and the amplified signal is used to control the connectivity between the battery cell and the supercapacitor unit. When the battery cell is connected to the supercapacitor unit, the amplified signal is further level-converted to generate a charging signal and a discharging signal of the start-up power supply. Finally, these charging signals and discharging signals are signal-shaped to obtain a charge and discharge control signal to control the supercapacitor unit to charge and discharge the start-up power supply.

[0047] Through analog-to-digital conversion, filtering, logical operations, and level conversion, the accuracy and stability of the signal are ensured, thereby improving the response speed and reliability of the starting power supply. The use of amplified signals enhances the connectivity control between the battery unit and the supercapacitor unit, making energy transfer more efficient. In addition, through precise charge and discharge control signals, the supercapacitor unit can be quickly charged or discharged when needed, which optimizes energy utilization, reduces energy loss, increases the overall efficiency of the system and the service life of the battery, effectively improves the performance and economic benefits of the automotive starting power supply system, and improves the problems of low energy conversion efficiency and delayed response time under extreme temperature conditions or battery aging.

[0048] Embodiment 2: In step S100, the control unit monitors the voltage fluctuation of the starting power supply to obtain a starting signal.

[0049] The stability and fluctuation of the power supply voltage are monitored in real time by the built-in sensor of the control unit; specifically, any voltage change beyond the preset range will be detected and converted into a start signal for voltage fluctuation.

[0050] For example, if the vehicle is started in a cold environment, the power supply voltage is prone to a brief drop. At this time, the control unit captures this change and generates a corresponding start signal.

[0051] The startup signal is sampled and quantized by a high-speed analog-to-digital converter to obtain a voltage sampling value and a current sampling value.

[0052] Real-time data of voltage and current are recorded at a high sampling rate through a high-speed analog-to-digital converter; specifically, during the sampling process, the voltage and current data of each sampling point are accurately quantified, providing detailed input signals for subsequent processing.

[0053] For example, the sampler records thousands of voltage and current data points during a start-up cycle, ensuring the data is comprehensive and accurate.

[0054] The voltage sampling value is denoised by multiplexing to obtain a pure voltage signal, and the pure voltage signal and the current sampling value are phase-aligned to obtain a digital signal.

[0055] Multiple signal sources are processed simultaneously through a multiplexer to effectively remove environmental noise interference; specifically, the denoised voltage signal is time-synchronized with the unprocessed current signal to ensure that both are processed within the same time frame.

[0056] For example, through noise removal and phase alignment, the instantaneous difference between the battery output and the actual load at startup can be accurately captured.

[0057] In step S200, a digital signal is subjected to bandpass filtering by a digital filter to obtain a spectrum signal, a current signal and a reference signal.

[0058] A dedicated digital filter is used to filter out unnecessary high-frequency and low-frequency components and retain data in key frequency bands. Specifically, the filtered spectrum signal shows the detailed frequency distribution of the power supply status, while the current signal and reference signal are used for further analysis.

[0059] For example, bandpass filtering can help identify specific frequency disturbances caused by starting a motor, thereby optimizing the power management strategy.

[0060] The frequency spectrum signal is frequency-selected by using the fast Fourier transform to obtain a frequency signal and a phase signal, and the current signal is subjected to harmonic compensation processing by using the frequency signal to obtain a first processed signal.

[0061] The frequency composition of the spectrum signal is analyzed by the FFT algorithm, and key frequencies are selected for harmonic analysis; specifically, these harmonic components are subtracted from the current signal to correct the distortion in the signal and improve the overall quality of the signal.

[0062] For example, if harmonics caused by battery aging are detected in the current signal, the system can automatically adjust to reduce the impact of these unstable factors.

[0063] The phase signal and the reference signal are used to perform incremental detection to obtain a second processed signal.

[0064] By comparing the difference between the phase signal and the reference signal, the phase increment change of the signal is monitored; specifically, this process helps identify the time offset or phase error of the signal to ensure the accuracy of signal synchronization.

[0065] For example, phase delta detection can detect a bad battery connection, which can cause the signal's phase to deviate significantly from the reference signal.

[0066] The first processed signal and the second processed signal are synthesized according to a fuzzy logic algorithm to obtain a corrected signal.

[0067] The two processed signals are evaluated and integrated through fuzzy logic to adjust the uncertainty and ambiguity in the signal processing process; specifically, the corrected signal represents an optimized output that can more accurately reflect the actual state of the power supply.

[0068] For example, when current and voltage data show slight contradictions, fuzzy logic can balance these differences to produce a composite, more stable signal output.

[0069] The correction signal and the second processed signal are logically operated by Boolean algebra to obtain an output signal.

[0070] The logical relationship between the correction signal and the second processed signal is synthesized through Boolean logic gates (such as AND, OR, NOT); specifically, this processing ensures the logical consistency and accuracy of the output signal.

[0071] For example, if both the correction signal and the second processed signal indicate that the voltage is stable, the output signal will indicate that the power supply is in good condition, otherwise it will prompt inspection or maintenance.

[0072] In step S300, the amplitude of the output signal is linearly amplified by an operational amplifier to obtain an amplified output.

[0073] By precisely controlling the gain parameters of the operational amplifier, linear amplification of the output signal is achieved; specifically, according to the original amplitude of the input signal, the amplifier settings are adjusted to obtain the required amplification factor, thereby ensuring that the amplitude of the output signal adapts to the processing requirements of the subsequent circuit.

[0074] For example, for a low-amplitude start-up signal, the op amp can be set to high gain to ensure the signal is clear and actionable for subsequent processing.

[0075] The gain control algorithm is used to adjust the gain of the amplified output to obtain a gain adjustment signal and a reference adjustment signal. The gain adjustment signal is modulated and corrected by amplitude modulation to obtain a modulated signal. The flatness of the reference adjustment signal is adjusted according to the modulated signal to obtain a differential signal.

[0076] The gain is dynamically adjusted by applying software algorithms to respond to different power states and load conditions; specifically, the gain control algorithm evaluates the quality of the amplified output signal and optimizes its modulation process to obtain a uniform differential signal and reduce signal distortion during transmission.

[0077] For example, if the system detects that the peak of the amplified output signal at a specific frequency is too high, the gain control algorithm will automatically reduce the gain at that frequency to balance the spectral distribution of the entire signal.

[0078] The differential signal is subjected to phase shift processing to obtain a positive phase signal and a negative phase signal.

[0079] The phase separation of the differential signal is achieved through the phase adjustment element in the circuit design; specifically, the differential signal is decomposed into two parts with opposite phases, which is helpful for subsequent signal synthesis and distortion compensation.

[0080] For example, by precisely controlling the phase shifting elements, the positive and negative phase signals can be independently adjusted before being combined, ensuring the phase consistency and stability of the final output signal.

[0081] Impedance matching is used to compensate the distortion of the positive phase signal to obtain a compensated signal, and power factor correction is used to enhance the compensated signal to obtain an enhanced signal.

[0082] By adjusting the impedance value in the signal path to match the load impedance, the signal transmission efficiency is optimized; specifically, the compensation signal is further enhanced by power factor correction technology to improve the overall energy efficiency of the system and the quality of the signal.

[0083] For example, impedance matching can reduce energy reflection and loss caused by impedance mismatch, while power factor correction ensures efficient transmission of signals on the power line and reduces energy waste.

[0084] The voltage of the inverted signal is adjusted through a feedback network to obtain a regulated signal, and the accuracy of the enhanced signal is optimized based on the regulated signal to obtain an amplified signal.

[0085] The voltage level of the signal is automatically adjusted through a feedback mechanism to adapt to changing load requirements; specifically, the generation of the regulated signal relies on the real-time monitoring of the anti-phase signal to ensure the output accuracy and stability of the enhanced signal.

[0086] For example, the feedback network can monitor the output voltage of the signal in real time and automatically adjust it to match the predetermined output standard to ensure that the signal output is not affected by transient fluctuations.

[0087] In step S400, the amplitude of the amplified signal is limited by a level converter to obtain a primary conversion signal, a signal segment and a compressed signal, a limiting filter is applied to filter the primary conversion signal to obtain a low-pass signal and a high-pass signal, the low-pass signal is used to perform edge detection on the signal segment to obtain a recognition signal, and the high-pass signal and the compressed signal are dynamically compressed to obtain a compressed processed signal.

[0088] Limiting is used to avoid saturation and clipping of the signal in extreme cases; specifically, the level converter maintains the signal within a safe operating range, while the low-pass and high-pass filters finely divide and process the signal to optimize the dynamic range and recognition of the signal.

[0089] For example, when the amplitude of the amplified signal exceeds the processing capability of the level converter, limiting filtering can effectively reduce the peak value of the signal, while edge detection helps the system identify the key turning points of the signal, providing important information for subsequent signal processing.

[0090] The compressed signal is logically combined with the identification signal to obtain a charging signal.

[0091] Through precise logic operation modules, the system combines the compressed processing signal and the identification signal to generate a reliable charging signal. Specifically, based on Boolean logic combinations (such as AND, OR, etc.), it ensures that a valid charging signal is generated only when specific conditions are met, thereby ensuring the safety and efficiency of the charging process.

[0092] For example, if the compression processing signal indicates that the voltage is within an acceptable range, and the identification signal indicates that charging is currently required, the logic combination outputs an enable state to start the charging process.

[0093] The charging signal is phase synchronized by using a linear level conversion technology to obtain a synchronization signal and an offset signal, the synchronization signal is polarity-reversed to obtain an inversion signal, and the offset signal is amplitude-adjusted to obtain an adjusted offset signal.

[0094] Through the linear level converter, the phase of the signal is precisely adjusted to obtain the synchronization signal and the offset signal; specifically, the synchronization signal is obtained by polarity flipping, and the offset signal is finely adjusted in amplitude to improve signal consistency.

[0095] For example, during linear level conversion, polarity inversion can be used to correct signal polarity due to initial signal phase differences, while amplitude adjustment ensures that signal strengths match.

[0096] The flip signal and the adjustment offset signal are combined to obtain a discharge signal.

[0097] Through signal synthesis technology, the flip signal and the adjustment offset signal are combined into a comprehensive discharge signal; specifically, this synthesis takes into account the phase and amplitude characteristics of the signal to ensure that the discharge signal is consistent with other system components in timing.

[0098] For example, when the flip signal represents the main discharge timing and the adjustment offset signal corrects the amplitude mismatch, the synthesized discharge signal can achieve energy release of the supercapacitor with an optimized waveform.

[0099] In step S500, the charging signal and the discharging signal are phase-corrected by a waveform shaping circuit to obtain a phase matching signal and a reference signal.

[0100] Through high-precision waveform shaping circuits, the system fine-tunes the phase of the transmission signal to ensure optimal matching with the reference signal; specifically, phase locking technology is used to maintain the synchronization of charging and discharging signals to prevent signal phase drift from affecting the coordinated operation of the entire power system.

[0101] For example, the charging signal may experience phase shift due to line impedance changes during transmission. The waveform shaping circuit can correct this deviation in real time to obtain a phase-matched signal.

[0102] The phase matching signal is amplitude-frequency optimized to obtain an optimized amplitude-frequency signal, and the optimized amplitude-frequency signal is amplitude-compared with a reference signal to obtain a comparison signal.

[0103] Through dedicated digital-to-analog conversion equipment, the system makes detailed amplitude and frequency adjustments to the phase-matched signal to improve its transmission effect; specifically, through two-way optimization of amplitude and frequency, the system ensures that the signal transmission quality is not affected by external interference.

[0104] For example, spectrum analysis shows transmission loss in certain frequency bands. Through amplitude-frequency optimization technology, the amplitude of the frequency band can be increased to compensate for the loss and ensure overall signal integrity.

[0105] The comparison signal is converted into frequency domain by using an amplitude converter to obtain a frequency domain signal, the frequency domain signal is pulse shaped to obtain a pulse signal and a DC deviation signal, the pulse signal is harmonically modulated to obtain a harmonic modulation signal, the DC deviation signal is DC offset corrected by using the harmonic modulation signal, and a charge and discharge control signal is generated.

[0106] Through mature amplitude conversion technology, the signal is converted from the time domain to the frequency domain to analyze its frequency composition; specifically, pulse shaping technology is used to smooth the signal edges and reduce transmission distortion, and harmonic modulation is used to enhance signal characteristics and achieve high-precision correction of DC offset.

[0107] For example, if the frequency domain signal shows a low-frequency drift characteristic caused by a DC offset, pulse shaping combined with harmonic modulation can suppress the drift and generate a stable charge and discharge control signal.

[0108] In step S600, the charge and discharge control signal is subjected to power analysis by the charge and discharge control circuit to obtain a frequency component, and the frequency component is subjected to no-load voltage regulation to obtain an regulated voltage signal and an regulated current signal.

[0109] Through precise power analysis methods, the system deconstructs the frequency components in the charge and discharge control signal, identifies and adjusts its characteristic parameters; specifically, the no-load voltage regulation is adjusted in real time according to different frequency conditions, so that the signal maintains the optimal voltage and current matching under any operating conditions.

[0110] For example, when the system detects that a local peak value of a frequency component deviates from the design standard, the signal is returned to the expected range through local voltage adjustment to ensure stable power supply and energy efficiency of the system.

[0111] The regulated voltage signal is amplitude-adjusted to obtain a regulated voltage signal, the regulated current signal is dynamically load-regulated using the regulated voltage signal to obtain a dynamic current signal, and the charge and discharge path of the supercapacitor unit is controlled according to the dynamic current signal.

[0112] By using an automatic control regulator, the amplitude of the signal is adjusted to a preset level to ensure the quality of the output regulated voltage signal; specifically, the regulated voltage signal is used to adjust the current signal to match the current load conditions, thereby optimizing the charging and discharging efficiency and path of the supercapacitor unit.

[0113] For example, load fluctuations cause drastic changes in the current signal, and dynamic regulation can calmly cope with these changes and maintain the supercapacitor operating in an efficient state.

[0114] In this embodiment, through highly integrated and refined signal processing technology, the system realizes efficient management of the charging and discharging process of the vehicle's starting power supply. From basic signal generation and logical combination to advanced signal synchronization, amplitude-frequency optimization, pulse shaping and other complex operations, each step has been carefully designed to ensure the response speed and reliability of the system in complex environments. This not only improves overall energy efficiency and component life, but also provides users with a smoother and more efficient driving experience. The system minimizes energy waste through adaptive signal conditioning technology, while reducing the maintenance requirements of the vehicle power system. Such a system helps to provide significant strategic advantages in the competition in the automotive market and promote sustainable development and innovation.

[0115] Embodiment 3: like Figure 2As shown, the present application also provides a charge and discharge control device 10 for a vehicle starting power supply, including an acquisition module 11, a filtering module 12, an amplification module 13, a conversion module 14, a shaping module 15 and a charge and discharge module 16.

[0116] The acquisition module 11 is mainly used to acquire a start-up signal of a start-up power supply based on a control unit, and perform analog-to-digital conversion on the start-up signal to obtain a digital signal.

[0117] The filtering module 12 is mainly used to filter the digital signal to obtain a first processed signal and a second processed signal, generate a correction signal based on the first processed signal, and perform a logical operation on the correction signal and the second processed signal to obtain an output signal.

[0118] The amplification module 13 is mainly used to amplify the output signal to obtain an amplified signal, and control the connectivity between the battery unit and the supercapacitor unit according to the amplified signal.

[0119] The conversion module 14 is mainly used to convert the level of the amplified signal when the battery unit is connected to the super capacitor unit to obtain the charging signal and the discharging signal of the starting power supply.

[0120] The shaping module 15 is mainly used to use the charging signal as the charging signal of the power supply, perform signal shaping on the charging signal and the discharging signal, and obtain the charging and discharging control signal.

[0121] The charge and discharge module 16 is mainly used to control the super capacitor unit to charge and discharge the starting power supply according to the charge and discharge control signal.

[0122] In this embodiment, the acquisition module 11 ensures that the start signal is captured from the control unit with high precision and converted into a digital signal, laying the foundation for subsequent processing. The filtering module 12 denoises and separates the digital signal to generate reliable correction signals and output signals, which are enhanced by the amplification module 13 to ensure effective connectivity between the battery unit and the supercapacitor unit. The conversion module 14 and the shaping module 15 further process these signals to ensure that the electrical signals during the charging and discharging process are optimized and meet the power supply requirements. The charging and discharging module 16 uses these optimized control signals to accurately control the supercapacitor unit to charge and discharge, thereby greatly improving the response speed and energy efficiency of the entire system and ensuring the stability and long-term reliability of the vehicle starting power supply.

[0123] It should be noted that technicians in the relevant technical field can clearly understand that for the convenience and simplicity of description, the specific working process of the above-described device and each module can refer to the corresponding process in the aforementioned embodiment 1, and will not be repeated here.

[0124] Embodiment 4: The present application also provides an electronic device 20, including a memory 21 and a processor 22, wherein the memory 21 stores a computer program that can be run on the processor 22, and when the processor 22 executes the computer program, the charging and discharging control method of the automobile starting power supply in Example 1 is implemented.

[0125] In this embodiment, the automatic execution of the charge and discharge control method of the automobile starting power supply described in Embodiment 1 is realized by the integrated electronic device 20. The cooperative work of the memory 21 and the processor 22 enables the method to be stored in the form of software and executed by the processor 22, which not only reduces the demand for physical space, but also improves processing efficiency and accuracy. The computer program executed by the processor 22 accurately controls the charge and discharge process according to the preset algorithm, reduces human operation errors, and improves the reliability and efficiency of the system. In addition, this embodiment provides convenience for system upgrades and maintenance. By updating the program stored in the memory 21, it is easy to meet the needs of future technological development.

[0126] Embodiment 5: The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the processor executes the charge and discharge control method of the automobile starting power supply in Example 1.

[0127] In this embodiment, the standardization and popularization of the charge and discharge control method of the automobile starting power supply in Embodiment 1 is achieved through a computer-readable storage medium. The computer program on the storage medium can be read and executed by a variety of processors, which means that the charge and discharge control method can be widely used in different electronic devices and automobile systems. The benefits of standardization of this method include reduced costs, improved compatibility and easy deployment, so that automobile manufacturers can directly apply mature solutions without repeated development, thereby accelerating the speed and breadth of market promotion of new technologies.

[0128] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling the charge and discharge of a vehicle starting power supply, applied to a vehicle starting control system, wherein the control system comprises a control unit, a battery unit and a supercapacitor unit, and is characterized in that: The control method comprises: Acquiring a start signal for starting a power supply based on the control unit, performing analog-to-digital conversion on the start signal to obtain a digital signal; Performing filtering processing on the digital signal to obtain a first processed signal and a second processed signal, generating a correction signal based on the first processed signal, and performing a logical operation on the correction signal and the second processed signal to obtain an output signal; amplifying the output signal to obtain an amplified signal, and controlling connectivity between the battery unit and the supercapacitor unit according to the amplified signal; When the battery unit is connected to the supercapacitor unit, the amplified signal is level-converted to obtain a charging signal and a discharging signal for starting a power supply; Performing signal shaping on the charging signal and the discharging signal to obtain a charging and discharging control signal; The supercapacitor unit is controlled to charge and discharge the starting power supply according to the charge and discharge control signal.

2. The method for controlling the charge and discharge of a vehicle starting power supply according to claim 1, characterized in that: The step of acquiring the engine start signal based on the control unit and performing analog-to-digital conversion on the start signal to obtain a digital signal includes: The control unit monitors the voltage fluctuation of the starting power supply to obtain a starting signal; The start signal is sampled and quantized by a high-speed analog-to-digital converter to obtain a voltage sampling value and a current sampling value; The voltage sampling value is subjected to denoising processing through multiplexing to obtain a pure voltage signal, and the pure voltage signal and the current sampling value are subjected to phase alignment processing to obtain a digital signal.

3. The charge and discharge control method of the automobile starting power supply according to claim 1, characterized in that: The step of filtering the digital signal to obtain a first processed signal and a second processed signal, generating a correction signal based on the first processed signal, and performing a logical operation on the correction signal and the second processed signal to obtain an output signal comprises: Performing bandpass filtering on the digital signal through a digital filter to obtain a spectrum signal, a current signal and a reference signal; Performing frequency selection on the spectrum signal by using fast Fourier transform to obtain a frequency signal and a phase signal, and performing harmonic compensation processing on the current signal by using the frequency signal to obtain a first processed signal; Performing incremental detection using the phase signal and the reference signal to obtain a second processed signal; synthesizing the first processed signal and the second processed signal according to a fuzzy logic algorithm to obtain a corrected signal; The correction signal and the second processed signal are logically operated by Boolean algebra to obtain an output signal.

4. The method for controlling the charge and discharge of a vehicle starting power supply according to claim 1, characterized in that: The step of amplifying the output signal to obtain an amplified signal comprises: Linearly amplifying the amplitude of the output signal by an operational amplifier to obtain an amplified output; Using a gain control algorithm to adjust the gain of the amplified output to obtain a gain adjustment signal and a reference adjustment signal, performing modulation correction on the gain adjustment signal through amplitude modulation to obtain a modulation signal, and adjusting the flatness of the reference adjustment signal according to the modulation signal to obtain a differential signal; Performing phase shift processing on the differential signal to obtain a positive phase signal and a negative phase signal; Performing distortion compensation on the positive phase signal by using impedance matching to obtain a compensation signal, and performing signal enhancement on the compensation signal by combining power factor correction to obtain an enhanced signal; The inverted signal is voltage regulated through a feedback network to obtain a regulated signal, and the enhanced signal is precision optimized based on the regulated signal to obtain an amplified signal.

5. The method for controlling the charge and discharge of a vehicle starting power supply according to claim 1, characterized in that: The step of performing level conversion on the amplified signal to obtain a charging signal and a discharging signal for starting a power supply comprises: The amplitude of the amplified signal is limited by a level converter to obtain a primary conversion signal, a signal segment and a compressed signal, the primary conversion signal is filtered by a limiting filter to obtain a low-pass signal and a high-pass signal, the signal segment is edge detected by the low-pass signal to obtain an identification signal, and the high-pass signal and the compressed signal are dynamically compressed to obtain a compressed processing signal; logically combining the compression processing signal with the identification signal to obtain a charging signal; Performing phase synchronization on the charging signal by using a linear level conversion technology to obtain a synchronization signal and an offset signal, performing polarity inversion on the synchronization signal to obtain an inversion signal, and performing amplitude adjustment on the offset signal to obtain an adjusted offset signal; The flip signal and the adjustment offset signal are combined to obtain a discharge signal.

6. The method for controlling the charge and discharge of a vehicle starting power supply according to claim 1, characterized in that: The step of performing signal shaping on the charging signal and the discharging signal to obtain a charging and discharging control signal comprises: Performing phase correction on the charging signal and the discharging signal through a waveform shaping circuit to obtain a phase matching signal and a reference signal; Performing amplitude-frequency optimization on the phase matching signal to obtain an optimized amplitude-frequency signal, and comparing the amplitude of the optimized amplitude-frequency signal with the reference signal to obtain a comparison signal; The comparison signal is converted into frequency domain by using an amplitude converter to obtain a frequency domain signal, the frequency domain signal is pulse shaped to obtain a pulse signal and a DC deviation signal, the pulse signal is harmonically modulated to obtain a harmonic modulation signal, the DC deviation signal is corrected for DC offset by using the harmonic modulation signal, and a charge and discharge control signal is generated.

7. The method for controlling the charge and discharge of a vehicle starting power supply according to claim 1, characterized in that: The step of controlling the supercapacitor unit to charge and discharge the power supply according to the charge and discharge control signal comprises: Performing power analysis on the charge and discharge control signal through a charge and discharge control circuit to obtain a frequency component, and performing no-load voltage regulation on the frequency component to obtain a regulated voltage signal and a regulated current signal; The regulated voltage signal is amplitude-adjusted to obtain a regulated voltage signal, the regulated current signal is dynamically load-regulated using the regulated voltage signal to obtain a dynamic current signal, and the charge and discharge path of the supercapacitor unit is controlled according to the dynamic current signal.

8. A charge and discharge control device for a vehicle starting power supply, applied to a vehicle starting control system, the control system comprising a control unit, a battery unit and a supercapacitor unit, characterized in that: The device comprises: an acquisition module, configured to acquire a start-up signal for starting a power supply based on the control unit, and perform analog-to-digital conversion on the start-up signal to obtain a digital signal; a filtering module, configured to filter the digital signal to obtain a first processed signal and a second processed signal, generate a correction signal based on the first processed signal, and perform a logic operation on the correction signal and the second processed signal to obtain an output signal; an amplification module, used to amplify the output signal to obtain an amplified signal, and control the connectivity between the battery unit and the supercapacitor unit according to the amplified signal; A conversion module, used for performing level conversion on the amplified signal to obtain a charging signal and a discharging signal for starting a power supply when the battery unit is connected to the supercapacitor unit; A shaping module, used to use the charging signal as a charging signal of a power source, perform signal shaping on the charging signal and the discharging signal, and obtain a charging and discharging control signal; The charging and discharging module is used to control the super capacitor unit to charge and discharge the starting power supply according to the charging and discharging control signal.

9. An electronic device, characterized in that: The invention comprises a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the computer program, the charge and discharge control method of the automobile starting power supply according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed by a processor, the processor is enabled to execute the charge and discharge control method of the automobile starting power supply as claimed in any one of claims 1 to 7.

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