Super capacitor charging power supply system

Abstract

The invention provides a charging and power supply system for a super capacitor. The charging and power supply system comprises a DCDC converter, the super capacitor and a power supply control module, the DCDC converter is connected between a vehicle power battery and a shock absorber motor, the super capacitor is connected with the DCDC converter in parallel, and the power supply control module is connected with the DCDC converter and the power supply control module. And the power supply control module is used for acquiring the required power of the shock absorber motor, and controlling the DCDC converter and / or the super capacitor to cooperatively supply power to the shock absorber motor according to the required power, so that the shock absorber motor works in a normal voltage range. The power supply voltage stability and the power supply response rate of the vehicle active suspension can be improved.

Description

Technical Field

[0001] The present disclosure relates to the field of automobile technology, and in particular to a supercapacitor charging and power supply system. Background Art

[0002] Suspension is a general term for the force-transmitting connection device between the tire and the frame of a car. Its function is to transmit the force acting between the tire and the frame and to buffer the impact force transmitted from the road surface to the frame. The suspension determines the wheel posture, and the tire posture affects the tire's grip on the road. Active suspension is a suspension system that can be adjusted in real time according to the road surface and vehicle status. It consists of active shock absorbers, power supply systems and controllers.

[0003] As the power supply system of the active suspension, its response rate, power output, and voltage stability directly affect the final active suspension effect and vehicle performance. At present, the main source of power for the active suspension power supply system is the vehicle's high-voltage power battery. However, when dealing with the various working conditions of the active suspension on complex roads, the current power supply method still has problems such as weak power supply voltage stability and low power supply response rate. Summary of the invention

[0004] The embodiments of the present disclosure at least provide a supercapacitor charging and power supply system, which can improve the power supply voltage stability and power supply response rate of the vehicle active suspension.

[0005] The embodiment of the present disclosure provides a supercapacitor charging and power supply system, including: a DCDC converter, a supercapacitor and a power supply control module;

[0006] The DCDC converter is connected between the vehicle power battery and the shock absorber motor, the supercapacitor is connected in parallel with the DCDC converter, and the power supply control module is connected to the DCDC converter and the power supply control module respectively;

[0007] The power supply control module is used to obtain the required power of the shock absorber motor, and control the DCDC converter and / or the supercapacitor to jointly supply power to the shock absorber motor according to the required power, so that the shock absorber motor operates within a normal voltage range.

[0008] In an optional implementation manner, the power supply control module is specifically used to:

[0009] Determine the power change rate corresponding to the required power within the minimum power supply response time corresponding to the DCDC converter;

[0010] According to the power change rate and a preset change rate threshold corresponding to the power change rate, controlling the DCDC converter or the supercapacitor to supply power to the shock absorber motor;

[0011] According to the required power and the corresponding preset power threshold, the DCDC converter is controlled to supply power to the shock absorber motor, or the DCDC converter and the super capacitor supply power to the shock absorber motor simultaneously.

[0012] In an optional implementation, when controlling the DCDC converter or the supercapacitor to power the shock absorber motor according to the power change rate and a preset change rate threshold corresponding to the power change rate, the power supply control module is specifically used to:

[0013] Determining a magnitude relationship between the power change rate and the preset change rate threshold;

[0014] If the power change rate is greater than the preset change rate threshold, controlling the supercapacitor to supply power to the shock absorber motor within the minimum power supply response time;

[0015] If the power change rate is not greater than the preset change rate threshold, the DCDC converter is controlled to supply power to the shock absorber motor.

[0016] In an optional implementation, when the DCDC converter is controlled to power the shock absorber motor according to the required power and the corresponding preset power threshold, or the DCDC converter and the supercapacitor are simultaneously powered by the shock absorber motor, the power supply control module is further specifically used to:

[0017] Determine the magnitude relationship between the required power and the preset power threshold;

[0018] If the required power is greater than the preset power threshold, controlling the supercapacitor and the DCDC converter to supply power to the shock absorber motor simultaneously;

[0019] If the required power is less than the preset power threshold, the DCDC converter is controlled to supply power to the shock absorber motor.

[0020] In an optional implementation manner, the power supply control module is further configured to:

[0021] Determine the number of changes of the required power within the minimum power supply response time;

[0022] If the number of changes is greater than a preset number of changes threshold, controlling the supercapacitor to supply power to the shock absorber motor within the minimum power supply response time;

[0023] If the number of changes is not greater than the preset number of changes threshold, the DCDC converter is controlled to supply power to the shock absorber motor.

[0024] In an optional implementation, the DCDC converter is used to reduce the voltage of the electric energy of the vehicle power battery and transmit it to the shock absorber motor, so that the DCDC converter supplies power to the shock absorber motor;

[0025] The super capacitor is used to be charged by the DCDC converter and transmit electrical energy to the shock absorber motor when discharged, so that the super capacitor supplies power to the shock absorber motor.

[0026] In an optional implementation manner, the supercapacitor is also used for:

[0027] receiving electric energy generated by the shock absorber motor in a discharge state;

[0028] The shock absorber motor is charged by the electric energy generated in the discharged state.

[0029] An embodiment of the present disclosure also provides a vehicle active suspension system, including a supercapacitor charging and power supply system as described in any of the above embodiments, and also including an active shock absorber and a shock absorber controller.

[0030] An embodiment of the present disclosure also provides a vehicle, comprising the vehicle active suspension system as described in the above embodiment.

[0031] The embodiment of the present disclosure further provides a supercapacitor charging and power supply method, which is applied to the power supply control module in the supercapacitor charging and power supply system as described in any of the above embodiments, wherein the supercapacitor charging and power supply system further includes the DCDC converter and the supercapacitor, and the method includes:

[0032] Obtaining the required power of the shock absorber motor;

[0033] Determine the power change rate corresponding to the required power within the minimum power supply response time corresponding to the DCDC converter;

[0034] According to the power change rate and a preset change rate threshold corresponding to the power change rate, controlling the DCDC converter or the supercapacitor to supply power to the shock absorber motor so that the shock absorber motor operates within a normal voltage range;

[0035] According to the required power and the corresponding preset power threshold, the DCDC converter is controlled to power the shock absorber motor, or the DCDC converter and the supercapacitor are controlled to power the shock absorber motor simultaneously, so that the shock absorber motor operates within a normal voltage range.

[0036] An embodiment of the present disclosure also provides an electronic device, including: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the above-mentioned supercapacitor charging and power supply method, or steps in any possible implementation of the above-mentioned supercapacitor charging and power supply method are performed.

[0037] The embodiment of the present disclosure also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the supercapacitor charging and power supply method or the steps in any possible implementation of the supercapacitor charging and power supply method are executed.

[0038] The embodiments of the present disclosure also provide a computer program product, including a computer program / instruction, which, when executed by a processor, implements the above-mentioned supercapacitor charging and power supply method, or the steps in any possible implementation of the above-mentioned supercapacitor charging and power supply method.

[0039] The embodiment of the present disclosure provides a supercapacitor charging and power supply system, comprising: a DCDC converter, a supercapacitor and a power supply control module; the DCDC converter is connected between the vehicle power battery and the shock absorber motor, the supercapacitor is connected in parallel with the DCDC converter, and the power supply control module is connected to the DCDC converter and the power supply control module respectively; the power supply control module is used to obtain the required power of the shock absorber motor, and control the DCDC converter and / or the supercapacitor to jointly supply power to the shock absorber motor according to the required power, so that the shock absorber motor works within the normal voltage range. The power supply voltage stability and power supply response rate of the vehicle active suspension can be improved.

[0040] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following is a brief introduction to the drawings required for use in the embodiments. The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and are used together with the specification to illustrate the technical solutions of the present disclosure. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can also be obtained based on these drawings without creative work.

[0042] Figure 1A schematic diagram of a supercapacitor charging and power supply system provided by an embodiment of the present disclosure is shown;

[0043] Figure 2 A schematic diagram of a vehicle active suspension system provided by an embodiment of the present disclosure is shown;

[0044] Figure 3 A schematic diagram of a vehicle provided by an embodiment of the present disclosure is shown;

[0045] Figure 4 A flow chart of a supercapacitor charging and power supply method provided by an embodiment of the present disclosure is shown;

[0046] Figure 5 A schematic diagram of a supercapacitor charging and power supply device provided in an embodiment of the present disclosure is shown;

[0047] Figure 6 A schematic diagram of an electronic device provided by an embodiment of the present disclosure is shown.

[0048] Illustration Description:

[0049] 10-supercapacitor charging power supply system; 11-DCDC converter; 12-supercapacitor; 13-power supply control module; 20-vehicle active suspension system; 21-active shock absorber; 22-shock absorber controller; 30-vehicle. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The components of the embodiments of the present disclosure generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the present disclosure for protection, but merely represents the selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present disclosure.

[0051] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0052] The term "and / or" herein only describes an association relationship, indicating that three relationships may exist. For example, A and / or B may represent the following three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C may represent including any one or more elements selected from the set consisting of A, B, and C.

[0053] Research has found that the response rate, power output, and voltage stability of the active suspension power supply system directly affect the final active suspension effect and vehicle performance. At present, the main source of power for the active suspension power supply system is the vehicle's high-voltage power battery. However, when dealing with the various working conditions of the active suspension on complex roads, the current power supply method still has problems such as weak power supply voltage stability and low power supply response rate.

[0054] Based on the above research, the present disclosure provides a supercapacitor charging and power supply system, including: a DCDC converter, a supercapacitor and a power supply control module; the DCDC converter is connected between the vehicle power battery and the shock absorber motor, the supercapacitor is connected in parallel with the DCDC converter, and the power supply control module is connected to the DCDC converter and the power supply control module respectively; the power supply control module is used to obtain the required power of the shock absorber motor, and control the DCDC converter and / or the supercapacitor to jointly supply power to the shock absorber motor according to the required power, so that the shock absorber motor works within the normal voltage range. The power supply voltage stability and power supply response rate of the vehicle active suspension can be improved.

[0055] To facilitate understanding of this embodiment, firstly, a power supply system of an active suspension disclosed in an embodiment of the present disclosure is described in detail, see Figure 1 , which is a schematic diagram of a supercapacitor charging and power supply system 10 provided in an embodiment of the present disclosure.

[0056] like Figure 1 As shown in the figure, the supercapacitor charging and power supply system 10 includes: a DCDC converter 11, a supercapacitor 12 and a power supply control module 13. The DCDC converter 11 is connected between the vehicle power battery and the shock absorber motor, the supercapacitor 12 is connected in parallel with the DCDC converter 11, and the power supply control module 13 is connected to the DCDC converter 11 and the power supply control module 13 respectively.

[0057] Specifically, the DCDC converter 11 is used to step down the electric energy of the vehicle power battery and transmit it to the shock absorber motor, so that the DCDC converter 11 powers the shock absorber motor; the supercapacitor 12 is used to charge through the DCDC converter 11, and transmit the electric energy to the shock absorber motor when discharging, so that the supercapacitor 12 powers the shock absorber motor.

[0058] Here, the output end of the vehicle power battery is connected to the input end of the DCDC converter 11, the output end of the DCDC converter 11 is connected to the shock absorber motor in the vehicle active suspension, and the super capacitor 12 is connected to the shock absorber motor in the vehicle active suspension in parallel with the DCDC converter 11.

[0059] Among them, the DCDC converter 11 is used to input high-voltage direct current from the high-voltage power battery and convert the high-voltage direct current into low-voltage direct current suitable for the supercapacitor 12 and the shock absorber motor. At the same time, when necessary, the converted low-voltage direct current is used to charge the supercapacitor 12 to ensure that the supercapacitor voltage is maintained at the target voltage. At the same time, when the shock absorber needs electric energy, stable low-voltage direct current is directly provided to the shock absorber motor, and when the shock absorber power demand changes, the output is adjusted in time to ensure the normal operation of the shock absorber motor.

[0060] The supercapacitor 12 includes a capacitor monomer, a monitoring and management circuit, a housing, positive and negative poles, a low-voltage interface, etc. It is a new energy storage device between traditional capacitors and batteries. It has the advantages of high energy density, high power density, and long cycle life.

[0061] In the supercapacitor charging and power supply system 10, the supercapacitor 12 can provide high power output in a very short time to meet the power demand of the shock absorber motor under rapidly changing working conditions. When the power demand of the shock absorber motor fluctuates greatly, the supercapacitor 12 can respond quickly and smooth the current fluctuations to ensure the stable operation of the supercapacitor charging and power supply system 10; when the shock absorber motor generates energy back, the supercapacitor 12 can quickly store the recovered energy to improve the overall energy efficiency of the system.

[0062] It should be noted that in actual applications, the capacitance and the number of series-parallel connections of the supercapacitor 12 can be adjusted according to actual application requirements, and no specific restrictions are made here.

[0063] Furthermore, the power supply control module 13 is used to obtain the required power of the shock absorber motor, and control the DCDC converter 11 and / or the super capacitor 12 to jointly supply power to the shock absorber motor according to the required power, so that the shock absorber motor operates within a normal voltage range.

[0064] In a specific implementation, the power supply control strategy of the power supply control module 13 is: determine the power change rate corresponding to the required power within the minimum power supply response time corresponding to the DCDC converter 11; according to the power change rate and the preset change rate threshold corresponding to the power change rate, control the DCDC converter 11 or the supercapacitor 12 to power the shock absorber motor; according to the required power and the corresponding preset power threshold, control the DCDC converter 11 to power the shock absorber motor, or control the DCDC converter 11 and the supercapacitor 12 to power the shock absorber motor at the same time.

[0065] Here, in view of the situation where the DCDC converter 11 or the supercapacitor 12 is controlled to supply power to the shock absorber motor according to the power change rate and the preset change rate threshold corresponding to the power change rate, the power supply control module 13 determines the size relationship between the power change rate and the preset change rate threshold; if the power change rate is greater than the preset change rate threshold, the supercapacitor 12 is controlled to supply power to the shock absorber motor within the minimum power supply response time; if the power change rate is not greater than the preset change rate threshold, the DCDC converter 11 is controlled to supply power to the shock absorber motor.

[0066] If the power demand of the shock absorber motor changes rapidly in a very short time, the DCDC converter 11 cannot respond in time within the minimum power supply response time. At this time, the power supply control module 13 controls the supercapacitor 12 to supply power to the shock absorber.

[0067] It should be noted that the preset change rate threshold can be set according to actual needs and is not specifically limited here.

[0068] Here, according to the required power of the shock absorber motor and the corresponding preset power threshold, the DCDC converter 11 is controlled to power the shock absorber motor, or the DCDC converter 11 and the super capacitor 12 are simultaneously powered by the shock absorber motor, the power supply control module 13 determines the relationship between the required power and the preset power threshold; if the required power is greater than the preset power threshold, the super capacitor 12 and the DCDC converter 11 are controlled to power the shock absorber motor at the same time; if the required power is less than the preset power threshold, the DCDC converter 11 is controlled to power the shock absorber motor.

[0069] When the required power of the shock absorber motor is very large, the DCDC converter 11 and the super capacitor 12 simultaneously supply power to the shock absorber motor to meet the power requirement.

[0070] It should be noted that the preset power threshold can be set according to actual needs and is not specifically limited here.

[0071] As a possible implementation, after the required power of the shock absorber motor decreases, the power supply control module 13 controls the DCDC converter 11 to recharge the super capacitor 12 to the target voltage.

[0072] As another possible implementation, the power supply control module 13 can also determine the number of changes in the required power of the shock absorber motor within the minimum power supply response time; if the number of changes is greater than a preset change number threshold, the supercapacitor 12 is controlled to power the shock absorber motor within the minimum power supply response time; if the number of changes is not greater than the preset change number threshold, the DCDC converter 11 is controlled to power the shock absorber motor.

[0073] It should be noted that the preset change number threshold can be set according to actual needs and is not specifically limited here.

[0074] In the supercapacitor charging and power supply system 10 provided in the embodiment of the present disclosure, the supercapacitor 12 is used for electric energy storage, and under the control of the power supply control module 13, it cooperates with the DCDC converter 11 to power the shock absorber motor. The DCDC converter 11 has three major functions: converting the high-voltage battery voltage into a low voltage, charging the supercapacitor, and powering the shock absorber motor. In the working process, the high-voltage power battery is input to the DCDC converter 11, converting the high voltage into a low voltage, and charging the supercapacitor to the target voltage. At the same time, according to the power demand of the shock absorber, the DCDC converter 11 and the supercapacitor 12 cooperate to supply power. The power supply logic atmosphere is as follows: Case 1: Normal power demand stage, mainly powered by the DCDC converter 11; Case 2: Rapid power demand change stage, when the power demand changes rapidly in a very short time and the DCDC cannot respond in time, the supercapacitor 12 supplies power to the shock absorber; Case 3: High power demand stage, when the power demand of the shock absorber is very large, the DCDC converter and the supercapacitor supply power at the same time, and when the power demand is reduced, the DCDC converter recharges the supercapacitor to the target voltage.

[0075] As a possible implementation, the supercapacitor 12 can also receive the electric energy generated by the shock absorber motor in a discharge state; and be charged by the electric energy generated by the shock absorber motor in a discharge state.

[0076] Here, when the shock absorber generates energy return, the energy is recovered to the supercapacitor. At this time, the voltage of the supercapacitor increases, and the energy is stored in the supercapacitor for subsequent power supply use.

[0077] It should be noted that the supercapacitor charging and power supply system 10 provided in the embodiment of the present application can be used not only for active suspension, but also for other chassis or suspension systems used to stabilize the vehicle, thereby improving the comfort and user perception of the vehicle. Through this system, electric energy is obtained from the vehicle's high-voltage power battery to output stable electric energy to the shock absorber motor, and at the same time, the electric energy of the shock absorber motor can be recovered through the supercapacitor 12 to ensure that the shock absorber motor operates in the optimal voltage range.

[0078] For further information, see Figure 2 , which is a schematic diagram of a vehicle active suspension system 20 provided in an embodiment of the present disclosure.

[0079] like Figure 2 As shown in FIG. 1 , the vehicle active suspension system 20 includes Figure 1 The supercapacitor charging and power supply system 10 shown in the figure further includes an active shock absorber 21 and a shock absorber controller 22 .

[0080] Here, the vehicle active suspension system 20 is a suspension system component that automatically adjusts according to real-time road conditions and vehicle status. Unlike traditional passive shock absorbers, the vehicle active suspension system 20 can adjust the damping characteristics of the shock absorber through an electronic control system to provide better driving comfort and handling performance.

[0081] Among them, the vehicle active suspension system 20 includes the following components: a supercapacitor charging and power supply system 10, an active shock absorber 21, and a shock absorber controller 22. The shock absorber controller 22 is used to receive parameters such as the vehicle driving state, road conditions, vehicle speed, acceleration, etc. monitored by the vehicle sensor, and calculate the optimal shock absorber damping value. The active shock absorber 21 adjusts the damping characteristics according to the instructions of the shock absorber controller 22 through a solenoid valve or other adjustment mechanism to improve the driving stability and ride comfort of the vehicle, especially when dealing with different road conditions and driving conditions.

[0082] For further information, see Figure 3 As shown, it is a schematic diagram of a vehicle 30 provided by an embodiment of the present disclosure. Figure 2 As shown in FIG. 1 , the vehicle 30 includes Figure 2 The vehicle active suspension system 20 is shown in FIG.

[0083] The embodiment of the present disclosure provides a supercapacitor charging and power supply system, comprising: a DCDC converter, a supercapacitor and a power supply control module; the DCDC converter is connected between the vehicle power battery and the shock absorber motor, the supercapacitor is connected in parallel with the DCDC converter, and the power supply control module is connected to the DCDC converter and the power supply control module respectively; the power supply control module is used to obtain the required power of the shock absorber motor, and control the DCDC converter and / or the supercapacitor to jointly supply power to the shock absorber motor according to the required power, so that the shock absorber motor works within the normal voltage range. The power supply voltage stability and power supply response rate of the vehicle active suspension can be improved.

[0084] Based on the same inventive concept, the embodiment of the present disclosure also provides a supercapacitor charging and power supply method corresponding to the supercapacitor charging and power supply system. Since the principle of solving the problem by the method in the embodiment of the present disclosure is similar to the supercapacitor charging and power supply system mentioned above in the embodiment of the present disclosure, the implementation of the method can refer to the implementation of the system, and the repeated parts will not be repeated.

[0085] See also Figure 4 As shown, it is a flow chart of a supercapacitor charging and power supply method provided in an embodiment of the present disclosure, which is applied to the power supply control module 13 in the supercapacitor charging and power supply system 10 shown in 1, and the supercapacitor charging and power supply system 10 also includes a DCDC converter 11 and a supercapacitor 12. The method includes steps S401 to S404, wherein:

[0086] S401: Obtain the required power of the shock absorber motor.

[0087] S402: Determine a power change rate of the required power within a minimum power supply response time of the DCDC converter.

[0088] S403: According to the power change rate and a preset change rate threshold corresponding to the power change rate, control the DCDC converter or the supercapacitor to supply power to the shock absorber motor so that the shock absorber motor operates within a normal voltage range.

[0089] S404. According to the required power and the corresponding preset power threshold, control the DCDC converter to power the shock absorber motor, or the DCDC converter and the supercapacitor to power the shock absorber motor simultaneously, so that the shock absorber motor operates within a normal voltage range.

[0090] The embodiment of the present disclosure provides a supercapacitor charging and power supply method, which obtains the required power of the shock absorber motor; determines the power change rate corresponding to the required power within the minimum power supply response time corresponding to the DCDC converter; controls the DCDC converter or the supercapacitor to supply power to the shock absorber motor according to the power change rate and the preset change rate threshold corresponding to the power change rate, so that the shock absorber motor works within the normal voltage range; controls the DCDC converter to supply power to the shock absorber motor according to the required power and the corresponding preset power threshold, or controls the DCDC converter and the supercapacitor to supply power to the shock absorber motor at the same time, so that the shock absorber motor works within the normal voltage range. The power supply voltage stability and power supply response rate of the vehicle active suspension can be improved.

[0091] Based on the same inventive concept, a supercapacitor charging and power supply device corresponding to the supercapacitor charging and power supply method is also provided in the embodiment of the present disclosure. Since the principle of solving the problem by the device in the embodiment of the present disclosure is similar to the supercapacitor charging and power supply method mentioned above in the embodiment of the present disclosure, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0092] See also Figure 5 , Figure 5 Schematic diagram of a supercapacitor charging and power supply device provided in an embodiment of the present disclosure. Figure 5 As shown in the figure, the supercapacitor charging and power supply device 500 provided in the embodiment of the present disclosure includes:

[0093] A required power acquisition module, used to acquire the required power of the shock absorber motor;

[0094] A power change rate determination module, used to determine the power change rate of the required power within the minimum power supply response time corresponding to the DCDC converter;

[0095] a first power supply strategy control module, configured to control the DCDC converter or the supercapacitor to supply power to the shock absorber motor according to the power change rate and a preset change rate threshold corresponding to the power change rate, so that the shock absorber motor operates within a normal voltage range;

[0096] The second power supply strategy control module is used to control the DCDC converter to power the shock absorber motor, or the DCDC converter and the supercapacitor to power the shock absorber motor simultaneously according to the required power and the corresponding preset power threshold, so that the shock absorber motor operates within a normal voltage range.

[0097] For descriptions of the processing flow of each module in the device and the interaction flow between each module, reference may be made to the relevant descriptions in the above method embodiment, which will not be described in detail here.

[0098] The embodiment of the present disclosure provides a supercapacitor charging and power supply device, which obtains the required power of the shock absorber motor; determines the power change rate corresponding to the required power within the minimum power supply response time corresponding to the DCDC converter; controls the DCDC converter or the supercapacitor to supply power to the shock absorber motor according to the power change rate and the preset change rate threshold corresponding to the power change rate, so that the shock absorber motor works within the normal voltage range; controls the DCDC converter to supply power to the shock absorber motor according to the required power and the corresponding preset power threshold, or controls the DCDC converter and the supercapacitor to supply power to the shock absorber motor at the same time, so that the shock absorber motor works within the normal voltage range. The power supply voltage stability and power supply response rate of the vehicle active suspension can be improved.

[0099] Corresponds to Figure 4 The supercapacitor charging and power supply method in the present disclosure also provides an electronic device 600, such as Figure 6 FIG. 6 is a schematic diagram of the structure of an electronic device 600 provided in an embodiment of the present disclosure, including:

[0100] Processor 61, memory 62, and bus 63; memory 62 is used to store execution instructions, including memory 621 and external memory 622; memory 621 here is also called internal memory, which is used to temporarily store the operation data in processor 61, and the data exchanged with external memory 622 such as hard disk. Processor 61 exchanges data with external memory 622 through memory 621. When the electronic device 600 is running, the processor 61 communicates with the memory 62 through bus 63, so that the processor 61 executes Figure 4 The steps of the supercapacitor charging power supply method.

[0101] The embodiment of the present disclosure also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the supercapacitor charging and power supply method described in the above method embodiment are executed. The storage medium can be a volatile or non-volatile computer-readable storage medium.

[0102] The embodiment of the present disclosure also provides a computer program product, which includes computer instructions. When the computer instructions are executed by a processor, the steps of the supercapacitor charging and power supply method described in the above method embodiment can be executed. For details, please refer to the above method embodiment, which will not be repeated here.

[0103] The computer program product may be implemented in hardware, software or a combination thereof. In one optional embodiment, the computer program product is implemented as a computer storage medium. In another optional embodiment, the computer program product is implemented as a software product, such as a software development kit (SDK).

[0104] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In the several embodiments provided in the present disclosure, it should be understood that the disclosed device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. 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 mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of the device or unit can be electrical, mechanical or other forms.

[0105] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0106] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0107] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0108] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present disclosure, which are used to illustrate the technical solutions of the present disclosure, rather than to limit them. The protection scope of the present disclosure is not limited thereto. Although the present disclosure is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present disclosure, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure, and should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A supercapacitor charging and power supply system, characterized in that: include: DCDC converter, supercapacitor and power supply control module; The DCDC converter is connected between the vehicle power battery and the shock absorber motor, the supercapacitor is connected in parallel with the DCDC converter, and the power supply control module is connected to the DCDC converter and the power supply control module respectively; The power supply control module is used to obtain the required power of the shock absorber motor, and control the DCDC converter and / or the supercapacitor to jointly supply power to the shock absorber motor according to the required power, so that the shock absorber motor operates within a normal voltage range.

2. The system according to claim 1, characterized in that The power supply control module is specifically used for: Determine the power change rate of the required power within the minimum power supply response time of the DCDC converter; According to the power change rate and a preset change rate threshold corresponding to the power change rate, controlling the DCDC converter or the supercapacitor to supply power to the shock absorber motor; According to the required power and the corresponding preset power threshold, the DCDC converter is controlled to supply power to the shock absorber motor, or the DCDC converter and the super capacitor supply power to the shock absorber motor simultaneously.

3. The system according to claim 2, characterized in that When controlling the DCDC converter or the supercapacitor to supply power to the shock absorber motor according to the power change rate and a preset change rate threshold corresponding to the power change rate, the power supply control module is specifically used to: Determining a magnitude relationship between the power change rate and the preset change rate threshold; If the power change rate is greater than the preset change rate threshold, controlling the supercapacitor to supply power to the shock absorber motor within the minimum power supply response time; If the power change rate is not greater than the preset change rate threshold, the DCDC converter is controlled to supply power to the shock absorber motor.

4. The system according to claim 2, characterized in that When, according to the required power and the corresponding preset power threshold, the DCDC converter is controlled to supply power to the shock absorber motor, or the DCDC converter and the supercapacitor supply power to the shock absorber motor simultaneously, the power supply control module is further specifically used for: Determine the magnitude relationship between the required power and the preset power threshold; If the required power is greater than the preset power threshold, controlling the supercapacitor and the DCDC converter to supply power to the shock absorber motor simultaneously; If the required power is less than the preset power threshold, the DCDC converter is controlled to supply power to the shock absorber motor.

5. The system according to claim 2, characterized in that The power supply control module is also specifically used for: Determine the number of changes of the required power within the minimum power supply response time; If the number of changes is greater than a preset number of changes threshold, controlling the supercapacitor to supply power to the shock absorber motor within the minimum power supply response time; If the number of changes is not greater than the preset number of changes threshold, the DCDC converter is controlled to supply power to the shock absorber motor.

6. The system according to claim 2, characterized in that; The DCDC converter is used to reduce the voltage of the electric energy of the vehicle power battery and transmit it to the shock absorber motor, so that the DCDC converter supplies power to the shock absorber motor; The super capacitor is used to be charged by the DCDC converter and transmit electrical energy to the shock absorber motor when discharged, so that the super capacitor supplies power to the shock absorber motor.

7. The system according to claim 1, characterized in that The supercapacitor is also used for: receiving electric energy generated by the shock absorber motor in a discharge state; The shock absorber motor is charged by the electric energy generated in the discharged state.

8. A vehicle active suspension system, characterized in that: It comprises a supercapacitor charging and power supply system as described in any one of claims 1 to 7, and also comprises an active shock absorber and a shock absorber controller.

9. A vehicle, characterized in that: Comprising the vehicle active suspension system as claimed in claim 8.

10. A supercapacitor charging and power supply method, characterized in that: The power supply control module is applied to the supercapacitor charging and power supply system as claimed in any one of claims 1 to 7, wherein the supercapacitor charging and power supply system further includes the DCDC converter and the supercapacitor, and the method includes: Obtaining the required power of the shock absorber motor; Determine the power change rate of the required power within the minimum power supply response time of the DCDC converter; According to the power change rate and a preset change rate threshold corresponding to the power change rate, controlling the DCDC converter or the supercapacitor to supply power to the shock absorber motor so that the shock absorber motor operates within a normal voltage range; According to the required power and the corresponding preset power threshold, the DCDC converter is controlled to power the shock absorber motor, or the DCDC converter and the supercapacitor are controlled to power the shock absorber motor simultaneously, so that the shock absorber motor operates within a normal voltage range.

11. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, the steps of the supercapacitor charging and power supply method as described in claim 10 are performed.

12. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the supercapacitor charging and power supply method as described in any one of claim 10 are executed.

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