Energy control method and device for driving energy supply equipment and hydrogen energy driven vehicle

Abstract

The invention discloses an energy control method for driving energy supply equipment. The method comprises the following steps: acquiring a real-time voltage parameter of target driving energy supply equipment; according to the real-time voltage parameter and a preset voltage threshold parameter, determining a voltage abnormity judgment result corresponding to the target driving energy supply equipment; according to the voltage abnormity judgment result, energy supply output power corresponding to energy supply equipment of the energy supply object equipment is determined; determining a feedback torque coefficient according to the real-time voltage parameter, a preset voltage threshold parameter and a preset power threshold parameter; and determining feedback power corresponding to the driving working equipment according to the feedback torque coefficient and the original feedback torque of the driving working equipment. Therefore, the feedback power of the driving working equipment and the energy supply output power of the energy supply equipment can be correspondingly adjusted by fully considering the relationship among the real-time voltage parameter of the driving energy supply equipment, the preset voltage threshold value and the preset power threshold value parameter, so that the problem that the driving energy supply equipment triggers an overvoltage fault is avoided.

Description

Technical Field

[0001] The present invention relates to the field of energy control technology, and in particular to an energy control method and device for driving energy supply equipment and a hydrogen-powered vehicle. Background Art

[0002] In some device architectures, a core energy supply device is set up to power the drive energy supply device. However, the energy management of the energy supply device's corresponding energy supply target device relies on the energy supply device's state of charge (SOC) and the overall power demand of the energy supply target device as the basis for the energy supply device's power request. When the SOC is inaccurate, it is easy for the SOC to be low but the voltage of the drive energy supply device to be high, resulting in excessive recharge power of the drive energy supply device, causing overvoltage in the drive energy supply device. Furthermore, when the energy supply target device is braking, the driving working device will also power the drive energy supply device through brake feedback. When the driven object device encounters certain special working conditions, such as long-slope braking, emergency braking, and high-speed braking, the braking feedback power of the driving working device will increase and last for a long time. At this time, if the feedback power of the driving working device is not controlled, the energy supply device and the driving working device will simultaneously power the drive energy supply device, causing the transient voltage of the drive energy supply device to easily exceed the voltage alarm threshold, triggering an overvoltage fault. In extreme cases, it can also cause the driven object device to malfunction. It can be seen that the existing technology has defects that need to be addressed urgently. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an energy control method and device for a driving energy supply device and a hydrogen-powered vehicle, which can effectively control the driving working equipment to supply energy to the driving energy supply device with a reasonable feedback power, and control the energy supply equipment to supply energy to the driving energy supply device with a reasonable energy output power, thereby avoiding the problem of the driving energy supply device triggering an overvoltage fault due to the transient voltage of the driving energy supply device being too high during recharging, thereby effectively providing protection for the driving energy supply device.

[0004] In order to solve the above technical problems, the first aspect of the present invention discloses an energy control method for driving an energy supply device, the method comprising:

[0005] Acquiring real-time voltage parameters of a target drive energy supply device; the target drive energy supply device is used to supply energy to a drive working device of an energy supply object device corresponding to the target drive energy supply device;

[0006] Determine a voltage anomaly judgment result corresponding to the target drive energy supply device according to the real-time voltage parameter and the preset voltage threshold parameter;

[0007] Determining the energy supply output power corresponding to the energy supply device of the energy supply target device according to the voltage abnormality judgment result; the energy supply device is used to supply energy to the target drive energy supply device;

[0008] Determining a feedback torque coefficient according to the real-time voltage parameter, a preset voltage threshold parameter, and a preset power threshold parameter;

[0009] determining a feedback power corresponding to the driving working device according to the feedback torque coefficient and the original feedback torque of the driving working device;

[0010] Generate an energy supply control instruction corresponding to the energy supply output power and a feedback control instruction corresponding to the feedback power; the energy supply control instruction is used to control the energy supply device to supply energy to the target drive energy supply device with the energy supply output power, and the feedback control instruction is used to control the drive working device to perform feedback energy supply work for the target drive energy supply device with the feedback power.

[0011] As an optional embodiment, in the first aspect of the present invention, the target driving energy supply device includes a battery; and / or, the energy supply object device is a vehicle; and / or, the driving working device includes a motor; and / or, the energy supply device includes a hydrogen fuel cell; and / or, the real-time voltage parameters include the current single cell voltage and the current total battery voltage; the current single cell voltage is the current maximum single cell voltage.

[0012] As an optional embodiment, in the first aspect of the present invention, determining the voltage abnormality judgment result corresponding to the target drive energy supply device based on the real-time voltage parameter and the preset voltage threshold parameter includes:

[0013] Determining an overvoltage threshold corresponding to the target drive energy supply device;

[0014] Determining a limiting voltage threshold according to the overvoltage threshold;

[0015] Determining whether the real-time voltage parameter is greater than or equal to the limit voltage threshold, and obtaining a first voltage abnormality determination result;

[0016] When the first voltage abnormality judgment result is yes, it is determined whether the real-time voltage parameter is greater than or equal to the overvoltage threshold value to obtain a second voltage abnormality judgment result.

[0017] As an optional embodiment, in the first aspect of the present invention, the overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the limit voltage threshold includes a single cell limit voltage threshold and a total battery limit voltage threshold; and determining the overvoltage threshold corresponding to the target drive energy supply device includes:

[0018] Obtaining a single cell test overvoltage threshold and a total battery test overvoltage threshold corresponding to the target drive energy supply device;

[0019] Calculating the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold;

[0020] Calculating the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold;

[0021] Furthermore, determining the limiting voltage threshold according to the overvoltage threshold includes:

[0022] Calculating the product of the single cell overvoltage threshold and the limiting fault coefficient to obtain a single cell limiting voltage threshold;

[0023] Calculating the product of the total battery overvoltage threshold and the limit fault coefficient to obtain the total battery limit voltage threshold;

[0024] Furthermore, determining whether the real-time voltage parameter is greater than or equal to the limit voltage threshold to obtain a first voltage abnormality determination result includes:

[0025] determining whether the current single cell voltage is greater than or equal to the single cell limit voltage threshold, or whether the current total battery voltage is greater than or equal to the total battery limit voltage threshold, to obtain a first voltage abnormality determination result;

[0026] And, when the first voltage abnormality judgment result is yes, judging whether the real-time voltage parameter is greater than or equal to the overvoltage threshold, and obtaining a second voltage abnormality judgment result, including:

[0027] It is determined whether the current single cell voltage is greater than or equal to the single cell overvoltage threshold, or whether the current total battery voltage is greater than or equal to the total battery overvoltage threshold, to obtain a second voltage abnormality determination result.

[0028] As an optional implementation manner, in the first aspect of the present invention, determining the energy supply output power corresponding to the energy supply device according to the voltage abnormality judgment result includes:

[0029] When the first voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is a first power value; the first power value is inversely proportional to the current single cell voltage and / or the current total battery voltage;

[0030] When the result of the first voltage abnormality judgment is no, the energy supply output power corresponding to the energy supply device is not adjusted;

[0031] When the second voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is 0;

[0032] When the second voltage abnormality judgment result is no, the energy supply output power corresponding to the energy supply device is determined to be a second power value; the second power value is inversely proportional to the current single cell voltage and / or the current total battery voltage.

[0033] As an optional implementation manner, in the first aspect of the present invention, determining the feedback torque coefficient according to the real-time voltage parameter, the preset voltage threshold parameter, and the preset power threshold parameter includes:

[0034] Determining an overvoltage threshold corresponding to the target drive energy supply device;

[0035] Calculating a ratio of the real-time voltage parameter to the overvoltage threshold to obtain a current voltage ratio;

[0036] Determining whether the current voltage ratio is greater than or equal to the preset power threshold parameter to obtain a feedback torque coefficient determination result;

[0037] The feedback torque coefficient is determined according to the feedback torque coefficient judgment result.

[0038] As an optional embodiment, in the first aspect of the present invention, the overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the current voltage ratio includes a current single cell voltage ratio and a total battery voltage ratio; and determining the overvoltage threshold corresponding to the target drive energy supply device includes:

[0039] Obtaining a single cell test overvoltage threshold and a total battery test overvoltage threshold corresponding to the target drive energy supply device;

[0040] Calculating the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold;

[0041] Calculating the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold;

[0042] And, calculating the ratio of the real-time voltage parameter to the overvoltage threshold to obtain a current voltage ratio, including:

[0043] Calculating a ratio of the current cell voltage to the cell overvoltage threshold to obtain a current cell voltage ratio;

[0044] Calculating a ratio of the current total battery voltage to the total battery overvoltage threshold to obtain a current total battery voltage ratio;

[0045] Furthermore, determining whether the current voltage ratio is greater than or equal to the preset power threshold parameter to obtain a feedback torque coefficient determination result includes:

[0046] Determining whether the current single cell voltage ratio is greater than or equal to the preset power threshold parameter, or whether the current total battery voltage ratio is greater than or equal to the preset power threshold parameter, to obtain a feedback torque coefficient determination result;

[0047] And, determining the feedback torque coefficient according to the feedback torque coefficient judgment result includes:

[0048] When the feedback torque coefficient judgment result is yes, the feedback torque coefficient is greater than or equal to 0 and less than 1, and the feedback torque coefficient is inversely proportional to the current voltage ratio;

[0049] When the feedback torque coefficient judgment result is yes, and the current single cell voltage ratio is greater than or equal to 1, or the current total battery voltage ratio is greater than or equal to 1, the feedback torque coefficient is 0;

[0050] When the feedback torque coefficient determination result is negative, the feedback torque coefficient is 1.

[0051] As an optional embodiment, in the first aspect of the present invention, determining the regenerative power corresponding to the driving working device according to the regenerative torque coefficient and the original regenerative torque of the driving working device includes:

[0052] Calculating the product of the feedback torque coefficient and the original feedback torque of the driving working device to obtain a limited feedback torque value;

[0053] The limited feedback torque value is input into the controller of the driving working device to determine the feedback power corresponding to the driving working device.

[0054] A second aspect of the present invention discloses an energy control device for driving an energy supply device, the device comprising:

[0055] An acquisition module, configured to acquire real-time voltage parameters of a target drive energy supply device; the target drive energy supply device is configured to supply energy to a drive working device of an energy supply object device corresponding to the target drive energy supply device;

[0056] A judgment result determination module is used to determine a voltage abnormality judgment result corresponding to the target drive energy supply device based on the real-time voltage parameter and the preset voltage threshold parameter;

[0057] an energy supply output power determination module, configured to determine the energy supply output power corresponding to the energy supply device of the energy supply target device according to the voltage abnormality judgment result; the energy supply device is configured to supply energy to the target drive energy supply device;

[0058] a coefficient determination module, configured to determine a feedback torque coefficient based on the real-time voltage parameter, a preset voltage threshold parameter, and a preset power threshold parameter;

[0059] a feedback power determination module, configured to determine the feedback power corresponding to the driving working device according to the feedback torque coefficient and the original feedback torque of the driving working device;

[0060] A generation module is used to generate an energy supply control instruction corresponding to the energy supply output power and a feedback control instruction corresponding to the feedback power; the energy supply control instruction is used to control the energy supply device to use the energy supply output power to supply energy to the target drive energy supply device, and the feedback control instruction is used to control the drive working device to use the feedback power to perform feedback energy supply work for the target drive energy supply device.

[0061] As an optional embodiment, in the second aspect of the present invention, the target driving energy supply device includes a battery; and / or, the energy supply object device is a vehicle; and / or, the driving working device includes a motor; and / or, the energy supply device includes a hydrogen fuel cell; and / or, the real-time voltage parameters include the current single cell voltage and the current total battery voltage; the current single cell voltage is the current maximum single cell voltage.

[0062] As an optional embodiment, in the second aspect of the present invention, determining the voltage abnormality judgment result corresponding to the target drive energy supply device based on the real-time voltage parameter and the preset voltage threshold parameter includes:

[0063] Determining an overvoltage threshold corresponding to the target drive energy supply device;

[0064] Determining a limiting voltage threshold according to the overvoltage threshold;

[0065] Determining whether the real-time voltage parameter is greater than or equal to the limit voltage threshold, and obtaining a first voltage abnormality determination result;

[0066] When the first voltage abnormality judgment result is yes, it is determined whether the real-time voltage parameter is greater than or equal to the overvoltage threshold value to obtain a second voltage abnormality judgment result.

[0067] As an optional embodiment, in the second aspect of the present invention, the overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the limit voltage threshold includes a single cell limit voltage threshold and a total battery limit voltage threshold; and determining the overvoltage threshold corresponding to the target drive energy supply device includes:

[0068] Obtaining a single cell test overvoltage threshold and a total battery test overvoltage threshold corresponding to the target drive energy supply device;

[0069] Calculating the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold;

[0070] Calculating the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold;

[0071] Furthermore, determining the limiting voltage threshold according to the overvoltage threshold includes:

[0072] Calculating the product of the single cell overvoltage threshold and the limiting fault coefficient to obtain a single cell limiting voltage threshold;

[0073] Calculating the product of the total battery overvoltage threshold and the limit fault coefficient to obtain the total battery limit voltage threshold;

[0074] Furthermore, determining whether the real-time voltage parameter is greater than or equal to the limit voltage threshold to obtain a first voltage abnormality determination result includes:

[0075] determining whether the current single cell voltage is greater than or equal to the single cell limit voltage threshold, or whether the current total battery voltage is greater than or equal to the total battery limit voltage threshold, to obtain a first voltage abnormality determination result;

[0076] And, when the first voltage abnormality judgment result is yes, judging whether the real-time voltage parameter is greater than or equal to the overvoltage threshold, and obtaining a second voltage abnormality judgment result, including:

[0077] It is determined whether the current single cell voltage is greater than or equal to the single cell overvoltage threshold, or whether the current total battery voltage is greater than or equal to the total battery overvoltage threshold, to obtain a second voltage abnormality determination result.

[0078] As an optional implementation manner, in the second aspect of the present invention, determining the energy supply output power corresponding to the energy supply device according to the voltage abnormality judgment result includes:

[0079] When the first voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is a first power value; the first power value is inversely proportional to the current single cell voltage and / or the current total battery voltage;

[0080] When the result of the first voltage abnormality judgment is no, the energy supply output power corresponding to the energy supply device is not adjusted;

[0081] When the second voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is 0;

[0082] When the second voltage abnormality judgment result is no, the energy supply output power corresponding to the energy supply device is determined to be a second power value; the second power value is inversely proportional to the current single cell voltage and / or the current total battery voltage.

[0083] As an optional implementation manner, in the second aspect of the present invention, determining the feedback torque coefficient according to the real-time voltage parameter, the preset voltage threshold parameter, and the preset power threshold parameter includes:

[0084] Determining an overvoltage threshold corresponding to the target drive energy supply device;

[0085] Calculating a ratio of the real-time voltage parameter to the overvoltage threshold to obtain a current voltage ratio;

[0086] Determining whether the current voltage ratio is greater than or equal to the preset power threshold parameter to obtain a feedback torque coefficient determination result;

[0087] The feedback torque coefficient is determined according to the feedback torque coefficient judgment result.

[0088] As an optional embodiment, in the second aspect of the present invention, the overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the current voltage ratio includes a current single cell voltage ratio and a total battery voltage ratio; and determining the overvoltage threshold corresponding to the target drive energy supply device includes:

[0089] Obtaining a single cell test overvoltage threshold and a total battery test overvoltage threshold corresponding to the target drive energy supply device;

[0090] Calculating the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold;

[0091] Calculating the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold;

[0092] And, calculating the ratio of the real-time voltage parameter to the overvoltage threshold to obtain a current voltage ratio, including:

[0093] Calculating a ratio of the current cell voltage to the cell overvoltage threshold to obtain a current cell voltage ratio;

[0094] Calculating a ratio of the current total battery voltage to the total battery overvoltage threshold to obtain a current total battery voltage ratio;

[0095] Furthermore, determining whether the current voltage ratio is greater than or equal to the preset power threshold parameter to obtain a feedback torque coefficient determination result includes:

[0096] Determining whether the current single cell voltage ratio is greater than or equal to the preset power threshold parameter, or whether the current total battery voltage ratio is greater than or equal to the preset power threshold parameter, to obtain a feedback torque coefficient determination result;

[0097] And, determining the feedback torque coefficient according to the feedback torque coefficient judgment result includes:

[0098] When the feedback torque coefficient judgment result is yes, the feedback torque coefficient is greater than or equal to 0 and less than 1, and the feedback torque coefficient is inversely proportional to the current voltage ratio;

[0099] When the feedback torque coefficient judgment result is yes, and the current single cell voltage ratio is greater than or equal to 1, or the current total battery voltage ratio is greater than or equal to 1, the feedback torque coefficient is 0;

[0100] When the feedback torque coefficient determination result is negative, the feedback torque coefficient is 1.

[0101] As an optional embodiment, in the second aspect of the present invention, determining the regenerative power corresponding to the driving working device according to the regenerative torque coefficient and the original regenerative torque of the driving working device includes:

[0102] Calculating the product of the feedback torque coefficient and the original feedback torque of the driving working device to obtain a limited feedback torque value;

[0103] The limited feedback torque value is input into the controller of the driving working device to determine the feedback power corresponding to the driving working device.

[0104] The third aspect of the present invention discloses a hydrogen-powered vehicle, which includes a hydrogen fuel energy supply device for supplying energy, a driving energy supply device connected to the hydrogen fuel energy supply device, and a driving working device connected to the hydrogen fuel energy supply device and the driving energy supply device; the hydrogen-powered vehicle controls the hydrogen fuel energy supply device and the driving working device through the energy control method of the driving energy supply device disclosed in the first aspect of the present invention.

[0105] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0106] The present invention can determine the voltage anomaly judgment result corresponding to the driving energy supply device by comparing the real-time voltage parameter with the preset voltage threshold parameter, and determine the energy output power of the energy supply device based on the obtained voltage anomaly judgment result. At the same time, it can also determine the ratio of the real-time voltage parameter to the preset voltage threshold parameter, and then determine the feedback torque coefficient based on the comparison result of the ratio with the preset power threshold parameter. Finally, the feedback power corresponding to the driving working device is determined based on the feedback torque coefficient. In this way, the relationship between the real-time voltage parameter of the driving energy supply device, the preset voltage threshold and the preset power threshold parameter can be fully considered to adjust the feedback power of the driving working device and the energy output power of the energy supply device accordingly. The driving working device can be effectively controlled to supply energy to the driving energy supply device with a reasonable feedback power, and the energy supply device can be controlled to supply energy to the driving energy supply device with a reasonable energy output power. The energy of the driving energy supply device is controlled in two aspects at the same time, avoiding the problem of the driving energy supply device triggering an overvoltage fault due to excessive transient voltage during recharging, thereby effectively providing protection for the driving energy supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0107] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

[0108] Figure 1 This is a flow chart of an energy control method for driving an energy supply device disclosed in an embodiment of the present invention;

[0109] Figure 2 This is a schematic structural diagram of an energy control device for driving an energy supply device disclosed in an embodiment of the present invention;

[0110] Figure 3 1 is a schematic structural diagram of another energy control device for driving an energy supply device disclosed in an embodiment of the present invention;

[0111] Figure 4 This is a logic block diagram for controlling the output power of a hydrogen fuel cell in an energy control method for driving an energy supply device disclosed in an embodiment of the present invention;

[0112] Figure 5 This is a logic block diagram for controlling the braking feedback power of a drive motor in an energy control method for a drive energy supply device disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0113] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0114] The terms "first," "second," and so on, in the description and claims of the present invention and the accompanying drawings are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product, or end comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed therein, or may optionally include other steps or elements inherent to such process, method, product, or end.

[0115] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0116] The present invention discloses an energy control method and device for a driving energy supply device, and a hydrogen-powered vehicle. The method and device can determine the voltage anomaly judgment result corresponding to the driving energy supply device by comparing the real-time voltage parameter with the preset voltage threshold parameter, and determine the energy output power of the energy supply device based on the obtained voltage anomaly judgment result. At the same time, the method and device can determine the ratio of the real-time voltage parameter to the preset voltage threshold parameter, and then determine the feedback torque coefficient based on the comparison result of the ratio with the preset power threshold parameter. Finally, the feedback power corresponding to the driving working device is determined based on the feedback torque coefficient. In this way, the relationship between the real-time voltage parameter, the preset voltage threshold, and the preset power threshold parameter of the driving energy supply device can be fully considered to adjust the feedback power of the driving working device and the energy output power of the energy supply device accordingly. The method can effectively control the driving working device to supply energy to the driving energy supply device with a reasonable feedback power, and control the energy supply device to supply energy to the driving energy supply device with a reasonable energy output power. The energy of the driving energy supply device is controlled in two aspects at the same time, avoiding the problem of the driving energy supply device triggering an overvoltage fault due to excessive transient voltage during recharging, thereby effectively providing protection for the driving energy supply device. The following are detailed descriptions.

[0117] Example 1

[0118] See also Figure 1 , Figure 1 This is a flow chart of an energy control method for driving an energy supply device disclosed in an embodiment of the present invention. Figure 1 The energy control method for driving the energy supply device described is applied to a data processing chip, a processing terminal or a processing server, and the processing server can be a local server or a cloud server, which is not limited in the embodiment of the present invention. Figure 1 As shown, the energy control method for driving the energy supply device may include the following operations:

[0119] 101. Obtain real-time voltage parameters of the target drive energy supply device.

[0120] Specifically, the target driving energy supply device is used to supply energy to the driving working device of the energy supply object device corresponding to the target driving energy supply device. The target driving energy supply device provides energy to the driving working device, and its energy can be supplied by the driving working device through feedback energy supply and / or energy supply device.

[0121] Optionally, the driving working device includes a driving motor, and optionally, the target driving energy supply device is a battery.

[0122] Optionally, the real-time voltage parameters include the current cell voltage and the current total battery voltage. Optionally, the real-time voltage parameters can be directly acquired or detected by a controller of the target drive energy supply device.

[0123] Optionally, the energy supply device is a hydrogen fuel cell. Optionally, the energy supply target device is a vehicle, such as an electric family car or a hydrogen-powered commercial truck.

[0124] 102. Determine a voltage anomaly judgment result corresponding to the target drive energy supply device based on the real-time voltage parameter and the preset voltage threshold parameter.

[0125] 103. According to the voltage abnormality judgment result, determine the energy supply output power corresponding to the energy supply equipment of the energy supply target equipment.

[0126] 104. Determine a feedback torque coefficient according to the real-time voltage parameter, the preset voltage threshold parameter, and the preset power threshold parameter.

[0127] 105. Determine the feedback power corresponding to driving the working device according to the feedback torque coefficient and the original feedback torque of the driving working device.

[0128] 106. Generate an energy supply control instruction corresponding to the energy supply output power and a feedback control instruction corresponding to the feedback power.

[0129] Specifically, the energy supply control instruction is used to control the energy supply device to drive the energy supply device to perform energy supply work with the energy output power as the target, and the feedback control instruction is used to control the driving working device to drive the energy supply device to perform feedback energy supply work with the feedback power as the target.

[0130] It can be seen that the above-mentioned embodiment of the invention can determine the voltage anomaly judgment result corresponding to the driving energy supply device by comparing the real-time voltage parameter with the preset voltage threshold parameter, and determine the energy output power of the energy supply device based on the obtained voltage anomaly judgment result. At the same time, it also determines the ratio of the real-time voltage parameter to the preset voltage threshold parameter, and then determines the feedback torque coefficient based on the comparison result of the ratio with the preset power threshold parameter. Finally, the feedback power corresponding to the driving working device is determined based on the feedback torque coefficient. In this way, the relationship between the real-time voltage parameter of the driving energy supply device, the preset voltage threshold, and the preset power threshold parameter can be fully considered to adjust the feedback power of the driving working device and the energy output power of the energy supply device accordingly. It can effectively control the driving working device to supply energy to the driving energy supply device with a reasonable feedback power, and control the energy supply device to supply energy to the driving energy supply device with a reasonable energy output power. The energy of the driving energy supply device is controlled in two aspects at the same time, avoiding the problem of the driving energy supply device triggering an overvoltage fault due to excessive transient voltage during recharging, thereby effectively providing protection for the driving energy supply device.

[0131] As an optional embodiment, in the above steps, determining the voltage abnormality judgment result corresponding to the target drive energy supply device based on the real-time voltage parameter and the preset voltage threshold parameter includes:

[0132] Determine the overvoltage threshold corresponding to the target drive energy supply device;

[0133] Determining a limiting voltage threshold according to an overvoltage voltage threshold;

[0134] Determine whether the real-time voltage parameter is greater than or equal to a limit voltage threshold, and obtain a first voltage abnormality determination result;

[0135] When the first voltage abnormality judgment result is yes, it is determined whether the real-time voltage parameter is greater than or equal to the overvoltage threshold value to obtain a second voltage abnormality judgment result.

[0136] Through the above embodiment, the limiting voltage threshold can be determined by the overvoltage voltage threshold, and the real-time voltage parameter is compared with the limiting voltage threshold to obtain a first voltage abnormality judgment result. If the first voltage abnormality judgment result is yes, the real-time voltage parameter is also compared with the overvoltage voltage threshold to obtain a second voltage abnormality judgment result, and the energy supply output power of the energy supply device is determined based on the first voltage abnormality judgment result or the second voltage abnormality judgment result, so that the voltage of the driving energy supply device can be maintained at a relatively reasonable level in advance, avoiding the problem of overvoltage failure caused by excessive voltage of the driving energy supply device.

[0137] As an optional embodiment, in the above steps, the overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the limit voltage threshold includes a single cell limit voltage threshold and a total battery limit voltage threshold; and determining the overvoltage threshold corresponding to the target drive energy supply device includes:

[0138] Obtain the single-cell test overvoltage threshold and total battery test overvoltage threshold corresponding to the target drive energy supply device;

[0139] Calculate the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold;

[0140] Calculate the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold;

[0141] And, determining a limiting voltage threshold according to the overvoltage threshold, comprising:

[0142] Calculate the product of the single cell overvoltage threshold and the limiting fault coefficient to obtain the single cell limiting voltage threshold;

[0143] Calculate the product of the total battery overvoltage threshold and the limit fault coefficient to obtain the total battery limit voltage threshold;

[0144] And, determining whether the real-time voltage parameter is greater than or equal to the limit voltage threshold to obtain a first voltage abnormality determination result, including:

[0145] Determine whether the current single cell voltage is greater than or equal to the single cell limit voltage threshold, or whether the current total battery voltage is greater than or equal to the total battery limit voltage threshold, to obtain a first voltage abnormality determination result;

[0146] And, when the first voltage abnormality judgment result is yes, judging whether the real-time voltage parameter is greater than or equal to the overvoltage threshold, and obtaining a second voltage abnormality judgment result, including:

[0147] It is determined whether the current single cell voltage is greater than or equal to the single cell overvoltage threshold, or whether the current total battery voltage is greater than or equal to the total battery overvoltage threshold, to obtain a second voltage abnormality determination result.

[0148] Optionally, the overvoltage thresholds for single-cell and total battery tests can be confirmed by personnel through the technical agreement for driving the energy supply equipment. Optionally, the overvoltage failure coefficient is obtained through calibration testing of the energy supply target equipment, and its value range is 0.86 to 0.96. Optionally, the limit failure coefficient is obtained through calibration testing of the energy supply target equipment, and its value range is 0.88 to 0.98.

[0149] Through the above embodiment, first, the single cell overvoltage threshold and the total battery overvoltage threshold are multiplied by the overvoltage fault coefficient respectively. The function of this threshold is to serve as a judgment standard for whether the current real-time voltage will cause the driving energy supply equipment to produce an overvoltage fault; then, the single cell limit voltage threshold and the total battery limit voltage threshold are multiplied by the limit fault coefficient respectively. By comparing the current single cell voltage with the single cell limit voltage threshold, and comparing the current total battery voltage with the total battery limit voltage threshold, the current single cell voltage and The current total battery voltage is judged to achieve the purpose of controlling the energy supply output power of the energy supply equipment in advance; at the same time, when the above judgment result is yes, the current single cell voltage will be compared with the single cell overvoltage threshold, and the current total battery voltage will be compared with the total battery overvoltage threshold, so as to further monitor the driving energy supply equipment and further limit the output power of the energy supply equipment. In this way, the output power of the energy supply equipment can be adjusted as soon as an overvoltage fault occurs in the driving energy supply equipment, which can avoid the problem of overvoltage fault of the driving energy supply battery due to excessive energy supply output power of the energy supply equipment, and effectively provide protection for the driving energy supply equipment.

[0150] As an optional embodiment, in the above step, determining the energy supply output power corresponding to the energy supply device according to the voltage abnormality judgment result includes:

[0151] When the first voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is a first power value; the first power value is inversely proportional to the current single cell voltage and / or the current total battery voltage;

[0152] When the result of the first voltage abnormality judgment is no, no adjustment is made to the energy supply output power corresponding to the energy supply device;

[0153] When the second voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is 0;

[0154] When the second voltage abnormality judgment result is no, the energy supply output power corresponding to the energy supply device is determined to be a second power value; the second power value is inversely proportional to the current single cell voltage and / or the current total battery voltage.

[0155] Through the above embodiment, when the first voltage abnormality judgment result is yes, the output power corresponding to the energy supply device can be restricted in time, and the second voltage abnormality judgment result is determined on this basis. When the second voltage abnormality judgment result is yes, the output power of the target energy supply device can be stopped in time, thereby avoiding the problem that the driving energy supply device itself is already on the verge of overvoltage failure, but the target energy supply device still outputs power to the driving energy supply device, causing the driving energy supply device to have an overvoltage failure; when the second voltage abnormality judgment result is no, because the current single cell voltage and the current total battery voltage corresponding to the driving energy supply device are already relatively large at this time, in this case, the energy output power of the target energy supply device is further restricted, thereby avoiding the problem that the current single cell voltage and the current total battery voltage corresponding to the driving energy supply device continue to increase, causing the driving energy supply device to have an overvoltage failure, thereby effectively providing protection for the driving energy supply device.

[0156] As an optional embodiment, in the above step, determining the feedback torque coefficient according to the real-time voltage parameter, the preset voltage threshold parameter, and the preset power threshold parameter includes:

[0157] Determine the overvoltage threshold corresponding to the target drive energy supply device;

[0158] Calculate the ratio of the real-time voltage parameter to the overvoltage threshold to obtain the current voltage ratio;

[0159] Determine whether the current voltage ratio is greater than or equal to a preset power threshold parameter, and obtain a feedback torque coefficient determination result;

[0160] The feedback torque coefficient is determined according to the feedback torque coefficient judgment result.

[0161] Through the above embodiment, the ratio of the real-time voltage parameter to the overvoltage voltage threshold can be used as the current voltage ratio, and the current voltage ratio can be compared with the preset power threshold parameter to obtain the feedback torque coefficient judgment result, and the feedback torque coefficient can be determined based on the feedback torque coefficient judgment result, so as to determine the feedback power of the driving working equipment through the feedback torque coefficient, thereby realizing the control of the feedback power of the target driving working equipment, maintaining the voltage of the driving energy supply equipment at a relatively reasonable level, and thus avoiding the problem of overvoltage fault caused by excessive voltage of the driving energy supply equipment.

[0162] As an optional embodiment, in the above steps, the overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the current voltage ratio includes a current single cell voltage ratio and a total battery voltage ratio; and determining the overvoltage threshold corresponding to the target drive energy supply device includes:

[0163] Obtain the single-cell test overvoltage threshold and total battery test overvoltage threshold corresponding to the target drive energy supply device;

[0164] Calculate the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold;

[0165] Calculate the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold;

[0166] And, calculating the ratio of the real-time voltage parameter to the overvoltage threshold to obtain the current voltage ratio, including:

[0167] Calculate the ratio of the current cell voltage to the cell overvoltage threshold to obtain the current cell voltage ratio;

[0168] Calculate the ratio of the current total battery voltage to the total battery overvoltage threshold to obtain the current total battery voltage ratio;

[0169] Furthermore, determining whether the current voltage ratio is greater than or equal to a preset power threshold parameter to obtain a feedback torque coefficient determination result includes:

[0170] Determine whether the current single cell voltage ratio is greater than or equal to a preset power threshold parameter, or whether the current total battery voltage ratio is greater than or equal to a preset power threshold parameter, and obtain a feedback torque coefficient determination result;

[0171] And, determining the feedback torque coefficient according to the feedback torque coefficient judgment result, including:

[0172] When the feedback torque coefficient judgment result is yes, the feedback torque coefficient is greater than or equal to 0 and less than 1, and the feedback torque coefficient is inversely proportional to the current voltage ratio;

[0173] When the feedback torque coefficient judgment result is yes, and the current single cell voltage ratio is greater than or equal to 1, or the current total battery voltage ratio is greater than or equal to 1, the feedback torque coefficient is 0;

[0174] When the feedback torque coefficient judgment result is no, the feedback torque coefficient is 1.

[0175] Optionally, the single cell test overvoltage threshold and the total battery test overvoltage threshold can be confirmed by the staff through the technical agreement of the driving power supply equipment. Optionally, the preset power threshold parameter is obtained by calibration testing of the driving target equipment, and its value range is 0.78 to 0.88.

[0176] Through the above embodiment, the overvoltage fault coefficient is first multiplied with the single-cell test overvoltage threshold and the total battery test overvoltage threshold to obtain the single-cell overvoltage threshold and the total battery overvoltage threshold. Then, the current single-cell voltage ratio is determined according to the current single-cell voltage and the single-cell overvoltage threshold, and the current total battery voltage ratio is determined according to the current total battery voltage and the total battery overvoltage threshold. The single-cell voltage ratio and the total battery voltage ratio can directly reflect the current voltage condition of the driving energy supply device. Finally, the current single-cell voltage ratio and the current total battery voltage ratio are compared with the preset power threshold parameters to determine the feedback torque coefficient judgment result. When the feedback torque coefficient judgment result is yes, it indicates that the current voltage of the driving energy supply device is high, so it is necessary to control the feedback power corresponding to the target driving working device by reducing the feedback torque coefficient. When the feedback torque coefficient judgment result is no, it indicates that the current voltage of the driving energy supply device is low, so the feedback torque coefficient is determined to be 1 to achieve the target The target driving working device supplies energy to the driving energy supply device with the original feedback power. When the driving target device brakes, the driving target device can recycle more energy, which not only improves the safety of the driving target device, but also reduces the energy loss of the driving target device. Furthermore, when the current single voltage ratio or the current total voltage ratio is greater than or equal to 1, it means that the driving energy supply device is already in or close to an overvoltage fault. At this time, the feedback torque coefficient is set to 0 to cut off the energy supply of the target driving working device to the driving energy supply device, which can effectively provide protection for the driving energy supply device. From the above description, it can be known that the feedback power of the driving working device is indirectly determined by judging the feedback torque coefficient. The feedback power obtained in this way can be more suitable for the driving energy supply device under the current voltage condition, thereby realizing the control of the feedback power of the target driving working device and maintaining the voltage of the driving energy supply device at a relatively reasonable level, thereby avoiding the problem of overvoltage fault caused by excessive voltage of the driving energy supply device.

[0177] As an optional embodiment, in the above step, determining the feedback power corresponding to driving the working device according to the feedback torque coefficient and the original feedback torque of the driving working device includes:

[0178] Calculate the product of the feedback torque coefficient and the original feedback torque of the driving working equipment to obtain the limited feedback torque value;

[0179] The limited feedback torque value is input into a controller driving the working device to determine the corresponding feedback power of the driving working device.

[0180] Through the above embodiment, the feedback torque coefficient is multiplied by the original feedback torque of the target driven working device to obtain a limited feedback torque value, and then the limited feedback torque value is input into the controller of the target driven working device. The controller can control the feedback power of the target driven working device according to the limited feedback torque value.

[0181] Embodiments of the present invention implement energy control for driving working equipment through two control methods. The output power of the energy supply device is pre-set based on the relationship between the current cell voltage and total battery voltage of the energy supply device and a preset voltage threshold parameter. This effectively maintains the voltage of the energy supply device at a relatively reasonable level. This maintains a relatively moderate voltage for the energy supply device, leaving sufficient margin for the energy supply target device to provide braking feedback to the driving working equipment. Therefore, under most operating conditions, the same amount of feedback power is recharged, significantly reducing the risk of overvoltage failure in the energy supply device. This effectively forms a first line of defense for overvoltage protection of the energy supply device. With this first line of defense, there is no need to significantly limit the feedback power of the driving working equipment, allowing the energy supply target device to recover more energy, thereby improving the safety of the energy supply target device and reducing its energy loss. Under certain special operating conditions, such as long-slope braking, emergency braking, and high-speed braking, the braking feedback power of the driving working equipment should increase and last longer. At this point, the braking feedback power of the driving working equipment can be limited by the relationship between the real-time voltage of the driving energy supply equipment, the preset voltage threshold parameters, and the preset power threshold parameters. This ensures that the feedback power generated by braking is within the acceptable range of the driving energy supply equipment, avoiding the problem of excessive transient voltage boost in the driving energy supply equipment causing overvoltage failure. This is equivalent to forming a second line of defense for overvoltage protection of the driving energy supply equipment. Through the complementarity and synergy of the first and second lines of defense, the safety and reliability of the driving energy supply equipment can be effectively avoided, while also effectively balancing the overall energy flow of the energy supply target equipment, improving practicality and economy.

[0182] The following describes an embodiment of the present invention in which the solution is applied to a hydrogen fuel-powered vehicle to illustrate the beneficial effects of the present invention.

[0183] In a mature drive architecture for hydrogen fuel cell-powered vehicles, a hydrogen fuel cell is used to supply energy to the power battery, which in turn supplies energy to the drive motor. When the vehicle brakes, the drive motor also supplies energy to the power battery through brake feedback. However, currently available hydrogen fuel cell-powered vehicles usually control the power output of the hydrogen fuel cell by judging the SOC and the power demand of the vehicle. If the SOC is small or the power demand is large, the hydrogen fuel cell is controlled to output high power. When the power battery triggers a slight overvoltage fault warning, the power battery management system will send the maximum allowable charging power to the vehicle controller, and the vehicle controller will then limit the stack power request and motor feedback power based on this power. The above technical solution works better when the SOC is accurate, but after comparing actual operating data, hydrogen fuel cell-powered vehicles are more likely to have inaccurate SOC than pure electric vehicles, because most power batteries require constant current charging or discharging when calibrating the SOC, and even require an external charging gun to fully charge before calibration. Since pure electric vehicles can only be charged through external charging piles, the SOC can be calibrated during charging; however, in actual use, hydrogen fuel cell-driven vehicles basically rely on the power output of the fuel cell for replenishment, and the replenishment is basically dynamic. The charging and discharging current cannot be kept constant for a long time. As a result, the SOC is prone to inaccurate after the vehicle has been in operation for a period of time. When the SOC is inaccurate, it is easy to cause the power battery to recharge too much and cause power battery overvoltage. This is because when the SOC is inaccurate, it is easy for the SOC to be low but the power battery voltage to be high. Only when the SOC is judged to be low, the fuel cell will output high power. In this way, when the vehicle performs drive motor braking feedback, the drive motor feedback power plus the hydrogen fuel cell output power supply energy to charge the power battery. The drive battery transient voltage is likely to exceed the power battery voltage alarm threshold, thereby triggering a power battery overvoltage fault. In extreme cases, it will also cause the vehicle to lose power.

[0184] When the solution of the present invention is applied to a hydrogen fuel-powered vehicle, refer to Figure 4 , the output power of the hydrogen fuel cell to the power battery can be controlled through the relationship between the real-time voltage parameters of the power battery and the preset voltage threshold, and the power battery voltage can be maintained at a relatively reasonable level in advance, leaving enough margin for the vehicle to drive the motor braking feedback; refer to Figure 5At the same time, the feedback power of the drive motor to the power battery is controlled through the relationship between the real-time voltage parameters of the power battery, the preset voltage threshold and the preset power threshold, so that the braking recharging power is within the acceptable range of the power battery; at the same time, by controlling the output power of the hydrogen fuel cell to the power battery and controlling the feedback power of the drive motor to the power battery, the overvoltage problem of the power battery can be handled from two aspects at the same time. The two solutions complement and cooperate with each other, which can effectively avoid the safety and reliability of the driving energy supply equipment, and at the same time can effectively balance the overall energy flow of the energy supply target equipment, thereby improving practicality and economy.

[0185] Example 2

[0186] See also Figure 2 , Figure 2 This is a flow chart of an energy control device for driving an energy supply device disclosed in an embodiment of the present invention. Figure 2 The energy control device for driving the energy supply device is applied to a data processing chip, a processing terminal or a processing server, and the processing server can be a local server or a cloud server, which is not limited in the embodiment of the present invention. Figure 2 As shown, the energy control device of the drive energy supply device may include:

[0187] The acquisition module 101 is used to acquire the real-time voltage parameters of the target drive energy supply device.

[0188] Specifically, the target driving energy supply device is used to supply energy to the driving working device of the energy supply object device corresponding to the target driving energy supply device. The target driving energy supply device provides energy to the driving working device, and its energy can be supplied by the driving working device through feedback energy supply and / or energy supply device.

[0189] Optionally, the driving working device includes a driving motor, and optionally, the target driving energy supply device is a battery.

[0190] Optionally, the real-time voltage parameters include the current cell voltage and the current total battery voltage. Optionally, the real-time voltage parameters can be directly acquired or detected by a controller of the target drive energy supply device.

[0191] Optionally, the energy supply device is a hydrogen fuel cell. Optionally, the energy supply target device is a vehicle, such as an electric family car or a hydrogen-powered commercial truck.

[0192] The judgment result determination module 102 is used to determine the voltage abnormality judgment result corresponding to the target driving energy supply device according to the real-time voltage parameter and the preset voltage threshold parameter.

[0193] The energy supply output power determination module 103 is used to determine the energy supply output power corresponding to the energy supply device of the energy supply target device according to the voltage abnormality judgment result.

[0194] The coefficient determination module 104 is configured to determine the feedback torque coefficient according to the real-time voltage parameter, the preset voltage threshold parameter, and the preset power threshold parameter.

[0195] The regenerative power determination module 105 is configured to determine the regenerative power corresponding to driving the working device according to the regenerative torque coefficient and the original regenerative torque for driving the working device.

[0196] The generating module 106 is configured to generate an energy supply control instruction corresponding to the energy supply output power and a feedback control instruction corresponding to the feedback power.

[0197] Specifically, the energy supply control instruction is used to control the energy supply device to drive the energy supply device to perform energy supply work with the energy output power as the target, and the feedback control instruction is used to control the driving working device to drive the energy supply device to perform feedback energy supply work with the feedback power as the target.

[0198] It can be seen that the above-mentioned embodiment of the invention can determine the voltage anomaly judgment result corresponding to the driving energy supply device by comparing the real-time voltage parameter with the preset voltage threshold parameter, and determine the energy output power of the energy supply device based on the obtained voltage anomaly judgment result. At the same time, it also determines the ratio of the real-time voltage parameter to the preset voltage threshold parameter, and then determines the feedback torque coefficient based on the comparison result of the ratio with the preset power threshold parameter. Finally, the feedback power corresponding to the driving working device is determined based on the feedback torque coefficient. In this way, the relationship between the real-time voltage parameter of the driving energy supply device, the preset voltage threshold, and the preset power threshold parameter can be fully considered to adjust the feedback power of the driving working device and the energy output power of the energy supply device accordingly. It can effectively control the driving working device to supply energy to the driving energy supply device with a reasonable feedback power, and control the energy supply device to supply energy to the driving energy supply device with a reasonable energy output power. The energy of the driving energy supply device is controlled in two aspects at the same time, avoiding the problem of the driving energy supply device triggering an overvoltage fault due to excessive transient voltage during recharging, thereby effectively providing protection for the driving energy supply device.

[0199] As an optional embodiment, determining a voltage abnormality judgment result corresponding to a target drive energy supply device based on real-time voltage parameters and preset voltage threshold parameters includes:

[0200] Determine the overvoltage threshold corresponding to the target drive energy supply device;

[0201] Determining a limiting voltage threshold according to an overvoltage voltage threshold;

[0202] Determine whether the real-time voltage parameter is greater than or equal to a limit voltage threshold, and obtain a first voltage abnormality determination result;

[0203] When the first voltage abnormality judgment result is yes, it is determined whether the real-time voltage parameter is greater than or equal to the overvoltage threshold value to obtain a second voltage abnormality judgment result.

[0204] Through the above embodiment, the limiting voltage threshold can be determined by the overvoltage voltage threshold, and the real-time voltage parameter is compared with the limiting voltage threshold to obtain a first voltage abnormality judgment result. If the first voltage abnormality judgment result is yes, the real-time voltage parameter is also compared with the overvoltage voltage threshold to obtain a second voltage abnormality judgment result, and the energy supply output power of the energy supply device is determined based on the first voltage abnormality judgment result or the second voltage abnormality judgment result, so that the voltage of the driving energy supply device can be maintained at a relatively reasonable level in advance, avoiding the problem of overvoltage failure caused by excessive voltage of the driving energy supply device.

[0205] As an optional embodiment, the overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the limit voltage threshold includes a single cell limit voltage threshold and a total battery limit voltage threshold; and determining the overvoltage threshold corresponding to the target drive energy supply device includes:

[0206] Obtain the single-cell test overvoltage threshold and total battery test overvoltage threshold corresponding to the target drive energy supply device;

[0207] Calculate the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold;

[0208] Calculate the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold;

[0209] And, determining a limiting voltage threshold according to the overvoltage threshold, comprising:

[0210] Calculate the product of the single cell overvoltage threshold and the limiting fault coefficient to obtain the single cell limiting voltage threshold;

[0211] Calculate the product of the total battery overvoltage threshold and the limit fault coefficient to obtain the total battery limit voltage threshold;

[0212] And, determining whether the real-time voltage parameter is greater than or equal to the limit voltage threshold to obtain a first voltage abnormality determination result, including:

[0213] Determine whether the current single cell voltage is greater than or equal to the single cell limit voltage threshold, or whether the current total battery voltage is greater than or equal to the total battery limit voltage threshold, to obtain a first voltage abnormality determination result;

[0214] And, when the first voltage abnormality judgment result is yes, judging whether the real-time voltage parameter is greater than or equal to the overvoltage threshold, and obtaining a second voltage abnormality judgment result, including:

[0215] It is determined whether the current single cell voltage is greater than or equal to the single cell overvoltage threshold, or whether the current total battery voltage is greater than or equal to the total battery overvoltage threshold, to obtain a second voltage abnormality determination result.

[0216] Optionally, the overvoltage thresholds for single-cell and total battery tests can be confirmed by personnel through the technical agreement for driving the energy supply equipment. Optionally, the overvoltage failure coefficient is obtained through calibration testing of the energy supply target equipment, and its value range is 0.86 to 0.96. Optionally, the limit failure coefficient is obtained through calibration testing of the energy supply target equipment, and its value range is 0.88 to 0.98.

[0217] Through the above embodiment, first, the single cell overvoltage threshold and the total battery overvoltage threshold are multiplied by the overvoltage fault coefficient respectively. The function of this threshold is to serve as a judgment standard for whether the current real-time voltage will cause the driving energy supply equipment to produce an overvoltage fault; then, the single cell limit voltage threshold and the total battery limit voltage threshold are multiplied by the limit fault coefficient respectively. By comparing the current single cell voltage with the single cell limit voltage threshold, and comparing the current total battery voltage with the total battery limit voltage threshold, the current single cell voltage and The current total battery voltage is judged to achieve the purpose of controlling the energy supply output power of the energy supply equipment in advance; at the same time, when the above judgment result is yes, the current single cell voltage will be compared with the single cell overvoltage threshold, and the current total battery voltage will be compared with the total battery overvoltage threshold, so as to further monitor the driving energy supply equipment and further limit the output power of the energy supply equipment. In this way, the output power of the energy supply equipment can be adjusted as soon as an overvoltage fault occurs in the driving energy supply equipment, which can avoid the problem of overvoltage fault of the driving energy supply battery due to excessive energy supply output power of the energy supply equipment, and effectively provide protection for the driving energy supply equipment.

[0218] As an optional embodiment, determining the energy supply output power corresponding to the energy supply device according to the voltage abnormality judgment result includes:

[0219] When the first voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is a first power value; the first power value is inversely proportional to the current single cell voltage and / or the current total battery voltage;

[0220] When the result of the first voltage abnormality judgment is no, no adjustment is made to the energy supply output power corresponding to the energy supply device;

[0221] When the second voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is 0;

[0222] When the second voltage abnormality judgment result is no, the energy supply output power corresponding to the energy supply device is determined to be a second power value; the second power value is inversely proportional to the current single cell voltage and / or the current total battery voltage.

[0223] Through the above embodiment, when the first voltage abnormality judgment result is yes, the output power corresponding to the energy supply device can be restricted in time, and the second voltage abnormality judgment result is determined on this basis. When the second voltage abnormality judgment result is yes, the output power of the target energy supply device can be stopped in time, thereby avoiding the problem that the driving energy supply device itself is already on the verge of overvoltage failure, but the target energy supply device still outputs power to the driving energy supply device, causing the driving energy supply device to have an overvoltage failure; when the second voltage abnormality judgment result is no, because the current single cell voltage and the current total battery voltage corresponding to the driving energy supply device are already relatively large at this time, in this case, the energy output power of the target energy supply device is further restricted, thereby avoiding the problem that the current single cell voltage and the current total battery voltage corresponding to the driving energy supply device continue to increase, causing the driving energy supply device to have an overvoltage failure, thereby effectively providing protection for the driving energy supply device.

[0224] As an optional embodiment, the feedback torque coefficient is determined according to the real-time voltage parameter, the preset voltage threshold parameter, and the preset power threshold parameter, including:

[0225] Determine the overvoltage threshold corresponding to the target drive energy supply device;

[0226] Calculate the ratio of the real-time voltage parameter to the overvoltage threshold to obtain the current voltage ratio;

[0227] Determine whether the current voltage ratio is greater than or equal to a preset power threshold parameter, and obtain a feedback torque coefficient determination result;

[0228] The feedback torque coefficient is determined according to the feedback torque coefficient judgment result.

[0229] Through the above embodiment, the ratio of the real-time voltage parameter to the overvoltage voltage threshold can be used as the current voltage ratio, and the current voltage ratio can be compared with the preset power threshold parameter to obtain the feedback torque coefficient judgment result, and the feedback torque coefficient can be determined based on the feedback torque coefficient judgment result, so as to determine the feedback power of the driving working equipment through the feedback torque coefficient, thereby realizing the control of the feedback power of the target driving working equipment, maintaining the voltage of the driving energy supply equipment at a relatively reasonable level, and thus avoiding the problem of overvoltage fault caused by excessive voltage of the driving energy supply equipment.

[0230] As an optional embodiment, the overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the current voltage ratio includes a current single cell voltage ratio and a total battery voltage ratio; and determining the overvoltage threshold corresponding to the target drive energy supply device includes:

[0231] Obtain the single-cell test overvoltage threshold and total battery test overvoltage threshold corresponding to the target drive energy supply device;

[0232] Calculate the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold;

[0233] Calculate the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold;

[0234] And, calculating the ratio of the real-time voltage parameter to the overvoltage threshold to obtain the current voltage ratio, including:

[0235] Calculate the ratio of the current cell voltage to the cell overvoltage threshold to obtain the current cell voltage ratio;

[0236] Calculate the ratio of the current total battery voltage to the total battery overvoltage threshold to obtain the current total battery voltage ratio;

[0237] Furthermore, determining whether the current voltage ratio is greater than or equal to a preset power threshold parameter to obtain a feedback torque coefficient determination result includes:

[0238] Determine whether the current single cell voltage ratio is greater than or equal to a preset power threshold parameter, or whether the current total battery voltage ratio is greater than or equal to a preset power threshold parameter, and obtain a feedback torque coefficient determination result;

[0239] And, determining the feedback torque coefficient according to the feedback torque coefficient judgment result, including:

[0240] When the feedback torque coefficient judgment result is yes, the feedback torque coefficient is greater than or equal to 0 and less than 1, and the feedback torque coefficient is inversely proportional to the current voltage ratio;

[0241] When the feedback torque coefficient judgment result is yes, and the current single cell voltage ratio is greater than or equal to 1, or the current total battery voltage ratio is greater than or equal to 1, the feedback torque coefficient is 0;

[0242] When the feedback torque coefficient judgment result is no, the feedback torque coefficient is 1.

[0243] Optionally, the single cell test overvoltage threshold and the total battery test overvoltage threshold can be confirmed by the staff through the technical agreement of the driving power supply equipment. Optionally, the preset power threshold parameter is obtained by calibration testing of the driving target equipment, and its value range is 0.78 to 0.88.

[0244] Through the above embodiment, the overvoltage fault coefficient is first multiplied with the single-cell test overvoltage threshold and the total battery test overvoltage threshold to obtain the single-cell overvoltage threshold and the total battery overvoltage threshold. Then, the current single-cell voltage ratio is determined according to the current single-cell voltage and the single-cell overvoltage threshold, and the current total battery voltage ratio is determined according to the current total battery voltage and the total battery overvoltage threshold. The single-cell voltage ratio and the total battery voltage ratio can directly reflect the current voltage condition of the driving energy supply device. Finally, the current single-cell voltage ratio and the current total battery voltage ratio are compared with the preset power threshold parameters to determine the feedback torque coefficient judgment result. When the feedback torque coefficient judgment result is yes, it indicates that the current voltage of the driving energy supply device is high, so it is necessary to control the feedback power corresponding to the target driving working device by reducing the feedback torque coefficient. When the feedback torque coefficient judgment result is no, it indicates that the current voltage of the driving energy supply device is low, so the feedback torque coefficient is determined to be 1 to achieve the target The target driving working device supplies energy to the driving energy supply device with the original feedback power. When the driving target device brakes, the driving target device can recycle more energy, which not only improves the safety of the driving target device, but also reduces the energy loss of the driving target device. Furthermore, when the current single voltage ratio or the current total voltage ratio is greater than or equal to 1, it means that the driving energy supply device is already in or close to an overvoltage fault. At this time, the feedback torque coefficient is set to 0 to cut off the energy supply of the target driving working device to the driving energy supply device, which can effectively provide protection for the driving energy supply device. From the above description, it can be known that the feedback power of the driving working device is indirectly determined by judging the feedback torque coefficient. The feedback power obtained in this way can be more suitable for the driving energy supply device under the current voltage condition, thereby realizing the control of the feedback power of the target driving working device and maintaining the voltage of the driving energy supply device at a relatively reasonable level, thereby avoiding the problem of overvoltage fault caused by excessive voltage of the driving energy supply device.

[0245] As an optional embodiment, determining the regenerative power corresponding to driving the working device according to the regenerative torque coefficient and the original regenerative torque of the driving working device includes:

[0246] Calculate the product of the feedback torque coefficient and the original feedback torque of the driving working equipment to obtain the limited feedback torque value;

[0247] The limited feedback torque value is input into a controller driving the working device to determine the corresponding feedback power of the driving working device.

[0248] Through the above embodiment, the feedback torque coefficient is multiplied by the original feedback torque of the target driven working device to obtain a limited feedback torque value, and then the limited feedback torque value is input into the controller of the target driven working device. The controller can control the feedback power of the target driven working device according to the limited feedback torque value.

[0249] Embodiments of the present invention implement energy control for driving working equipment through two control methods. The output power of the energy supply device is pre-set based on the relationship between the current cell voltage and total battery voltage of the energy supply device and a preset voltage threshold parameter. This effectively maintains the voltage of the energy supply device at a relatively reasonable level. This maintains a relatively moderate voltage for the energy supply device, leaving sufficient margin for the energy supply target device to provide braking feedback to the driving working equipment. Therefore, under most operating conditions, the same amount of feedback power is recharged, significantly reducing the risk of overvoltage failure in the energy supply device. This effectively forms a first line of defense for overvoltage protection of the energy supply device. With this first line of defense, there is no need to significantly limit the feedback power of the driving working equipment, allowing the energy supply target device to recover more energy, thereby improving the safety of the energy supply target device and reducing its energy loss. Under certain special operating conditions, such as long-slope braking, emergency braking, and high-speed braking, the braking feedback power of the driving working equipment should increase and last longer. At this point, the braking feedback power of the driving working equipment can be limited by the relationship between the real-time voltage of the driving energy supply equipment, the preset voltage threshold parameters, and the preset power threshold parameters. This ensures that the feedback power generated by braking is within the acceptable range of the driving energy supply equipment, avoiding the problem of excessive transient voltage boost in the driving energy supply equipment causing overvoltage failure. This is equivalent to forming a second line of defense for overvoltage protection of the driving energy supply equipment. Through the complementarity and synergy of the first and second lines of defense, the safety and reliability of the driving energy supply equipment can be effectively avoided, while also effectively balancing the overall energy flow of the energy supply target equipment, improving practicality and economy.

[0250] Example 3

[0251] See also Figure 3 , Figure 3 FIG. 1 is a schematic diagram of the structure of another energy control device for driving an energy supply device disclosed in an embodiment of the present invention. Figure 3 As shown, the device may include:

[0252] A memory 301 storing executable program code;

[0253] a processor 302 coupled to the memory 301;

[0254] The processor 302 calls the executable program code stored in the memory 301 to execute part or all of the steps in the energy control method for driving an energy supply device disclosed in the first embodiment of the present invention.

[0255] Example 4

[0256] An embodiment of the present invention discloses a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program enables a computer to execute the steps of the energy control method for driving an energy supply device described in the first embodiment.

[0257] Example 5

[0258] An embodiment of the present invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to enable a computer to execute the steps of the energy control method for driving an energy supply device described in embodiment 1.

[0259] Example 6

[0260] An embodiment of the present invention discloses a hydrogen-powered vehicle, comprising a hydrogen fuel energy supply device for supplying energy, a drive energy supply device connected to the hydrogen fuel energy supply device, and a drive working device connected to the hydrogen fuel energy supply device and the drive energy supply device. The hydrogen-powered vehicle controls the hydrogen fuel energy supply device and the drive working device using the energy control method for the drive energy supply device disclosed in the first aspect of the present invention. Specifically, for the technical details of the hydrogen-powered vehicle in this embodiment, reference can be made to the description in the first embodiment and will not be repeated here.

[0261] The device embodiments described above are merely illustrative, wherein the modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, i.e., they may be located in one place or distributed across multiple network modules. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Those skilled in the art can understand and implement the present invention without inventive effort.

[0262] Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus the necessary general hardware platform, or of course, by means of hardware. Based on this understanding, the above technical solution, in essence, or the portion that contributes to the prior art, can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, including a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium capable of carrying or storing data.

[0263] Finally, it should be noted that the energy control method, device and hydrogen-powered vehicle for driving energy supply equipment disclosed in the embodiments of the present invention are only preferred embodiments of the present invention, and are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features therein can 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 various embodiments of the present invention.

Claims

1. A method for controlling energy supplying a driving device, characterized in that: The method comprises: Acquiring real-time voltage parameters of a target drive energy supply device; the target drive energy supply device is used to supply energy to a drive working device of an energy supply object device corresponding to the target drive energy supply device; Determine a voltage anomaly judgment result corresponding to the target drive energy supply device according to the real-time voltage parameter and the preset voltage threshold parameter; Determining the energy supply output power corresponding to the energy supply device of the energy supply target device according to the voltage abnormality judgment result; the energy supply device is used to supply energy to the target drive energy supply device; Determining a feedback torque coefficient according to the real-time voltage parameter, a preset voltage threshold parameter, and a preset power threshold parameter; determining a feedback power corresponding to the driving working device according to the feedback torque coefficient and the original feedback torque of the driving working device; Generate an energy supply control instruction corresponding to the energy supply output power and a feedback control instruction corresponding to the feedback power; the energy supply control instruction is used to control the energy supply device to supply energy to the target drive energy supply device with the energy supply output power, and the feedback control instruction is used to control the drive working device to perform feedback energy supply work for the target drive energy supply device with the feedback power.

2. The energy control method for driving an energy supply device according to claim 1, characterized in that: The target driving energy supply device includes a battery; and / or the energy supply object device is a vehicle; and / or the driving working device includes a motor; and / or the energy supply device includes a hydrogen fuel cell; and / or the real-time voltage parameters include the current single cell voltage and the current total battery voltage; the current single cell voltage is the current maximum single cell voltage.

3. The energy control method for driving an energy supply device according to claim 2, characterized in that: The determining, based on the real-time voltage parameter and the preset voltage threshold parameter, a voltage abnormality judgment result corresponding to the target drive energy supply device includes: Determining an overvoltage threshold corresponding to the target drive energy supply device; Determining a limiting voltage threshold according to the overvoltage threshold; Determining whether the real-time voltage parameter is greater than or equal to the limit voltage threshold, and obtaining a first voltage abnormality determination result; When the first voltage abnormality judgment result is yes, it is determined whether the real-time voltage parameter is greater than or equal to the overvoltage threshold value to obtain a second voltage abnormality judgment result.

4. The energy control method for driving an energy supply device according to claim 3, characterized in that: The overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the limit voltage threshold includes a single cell limit voltage threshold and a total battery limit voltage threshold; Furthermore, determining the overvoltage threshold corresponding to the target driving energy supply device includes: Obtaining a single cell test overvoltage threshold and a total battery test overvoltage threshold corresponding to the target drive energy supply device; Calculating the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold; Calculating the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold; Furthermore, determining the limiting voltage threshold according to the overvoltage threshold includes: Calculating the product of the single cell overvoltage threshold and the limiting fault coefficient to obtain a single cell limiting voltage threshold; Calculating the product of the total battery overvoltage threshold and the limit fault coefficient to obtain the total battery limit voltage threshold; Furthermore, determining whether the real-time voltage parameter is greater than or equal to the limit voltage threshold to obtain a first voltage abnormality determination result includes: determining whether the current single cell voltage is greater than or equal to the single cell limit voltage threshold, or whether the current total battery voltage is greater than or equal to the total battery limit voltage threshold, to obtain a first voltage abnormality determination result; And, when the first voltage abnormality judgment result is yes, judging whether the real-time voltage parameter is greater than or equal to the overvoltage threshold, and obtaining a second voltage abnormality judgment result, including: It is determined whether the current single cell voltage is greater than or equal to the single cell overvoltage threshold, or whether the current total battery voltage is greater than or equal to the total battery overvoltage threshold, to obtain a second voltage abnormality determination result.

5. The energy control method for driving an energy supply device according to claim 3, characterized in that: The determining, based on the voltage abnormality judgment result, the energy supply output power corresponding to the energy supply device includes: When the first voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is a first power value; the first power value is inversely proportional to the current single cell voltage and / or the current total battery voltage; When the result of the first voltage abnormality judgment is no, the energy supply output power corresponding to the energy supply device is not adjusted; When the second voltage abnormality judgment result is yes, determining that the energy supply output power corresponding to the energy supply device is 0; When the second voltage abnormality judgment result is no, the energy supply output power corresponding to the energy supply device is determined to be a second power value; the second power value is inversely proportional to the current single cell voltage and / or the current total battery voltage.

6. The energy control method for driving an energy supply device according to claim 1, characterized in that: The step of determining the feedback torque coefficient according to the real-time voltage parameter, the preset voltage threshold parameter, and the preset power threshold parameter includes: Determining an overvoltage threshold corresponding to the target drive energy supply device; Calculating a ratio of the real-time voltage parameter to the overvoltage threshold to obtain a current voltage ratio; Determining whether the current voltage ratio is greater than or equal to the preset power threshold parameter to obtain a feedback torque coefficient determination result; The feedback torque coefficient is determined according to the feedback torque coefficient judgment result.

7. The energy control method for driving an energy supply device according to claim 6, characterized in that: The overvoltage threshold includes a single cell overvoltage threshold and a total battery overvoltage threshold; the current voltage ratio includes a current single cell voltage ratio and a total battery voltage ratio; and determining the overvoltage threshold corresponding to the target drive energy supply device includes: Obtaining a single cell test overvoltage threshold and a total battery test overvoltage threshold corresponding to the target drive energy supply device; Calculating the product of the single-cell test overvoltage threshold and the overvoltage fault coefficient to obtain the single-cell overvoltage threshold; Calculating the product of the total battery test overvoltage threshold and the overvoltage fault coefficient to obtain the total battery overvoltage threshold; And, calculating the ratio of the real-time voltage parameter to the overvoltage threshold to obtain a current voltage ratio, including: Calculating a ratio of the current cell voltage to the cell overvoltage threshold to obtain a current cell voltage ratio; Calculating a ratio of the current total battery voltage to the total battery overvoltage threshold to obtain a current total battery voltage ratio; Furthermore, determining whether the current voltage ratio is greater than or equal to the preset power threshold parameter to obtain a feedback torque coefficient determination result includes: Determining whether the current single cell voltage ratio is greater than or equal to the preset power threshold parameter, or whether the current total battery voltage ratio is greater than or equal to the preset power threshold parameter, to obtain a feedback torque coefficient determination result; And, determining the feedback torque coefficient according to the feedback torque coefficient judgment result includes: When the feedback torque coefficient judgment result is yes, the feedback torque coefficient is greater than or equal to 0 and less than 1, and the feedback torque coefficient is inversely proportional to the current voltage ratio; When the feedback torque coefficient judgment result is yes, and the current single cell voltage ratio is greater than or equal to 1, or the current total battery voltage ratio is greater than or equal to 1, the feedback torque coefficient is 0; When the feedback torque coefficient determination result is negative, the feedback torque coefficient is 1.

8. The energy control method for driving an energy supply device according to claim 1, characterized in that: The determining, based on the feedback torque coefficient and the original feedback torque of the driving working device, the feedback power corresponding to the driving working device includes: Calculating the product of the feedback torque coefficient and the original feedback torque of the driving working device to obtain a limited feedback torque value; The limited feedback torque value is input into the controller of the driving working device to determine the feedback power corresponding to the driving working device.

9. An energy control device for driving an energy supply device, characterized in that: The device comprises: An acquisition module, configured to acquire real-time voltage parameters of a target drive energy supply device; the target drive energy supply device is configured to supply energy to a drive working device of an energy supply object device corresponding to the target drive energy supply device; A judgment result determination module is used to determine a voltage abnormality judgment result corresponding to the target drive energy supply device based on the real-time voltage parameter and the preset voltage threshold parameter; an energy supply output power determination module, configured to determine the energy supply output power corresponding to the energy supply device of the energy supply target device according to the voltage abnormality judgment result; the energy supply device is configured to supply energy to the target drive energy supply device; a coefficient determination module, configured to determine a feedback torque coefficient based on the real-time voltage parameter, a preset voltage threshold parameter, and a preset power threshold parameter; a feedback power determination module, configured to determine the feedback power corresponding to the driving working device according to the feedback torque coefficient and the original feedback torque of the driving working device; A generation module is used to generate an energy supply control instruction corresponding to the energy supply output power and a feedback control instruction corresponding to the feedback power; the energy supply control instruction is used to control the energy supply device to use the energy supply output power to supply energy to the target drive energy supply device, and the feedback control instruction is used to control the drive working device to use the feedback power to perform feedback energy supply work for the target drive energy supply device.

10. A hydrogen-powered vehicle, characterized in that: The hydrogen-powered vehicle includes a hydrogen fuel supply device for supplying energy, a driving power supply device connected to the hydrogen fuel supply device, and a driving working device connected to the hydrogen fuel supply device and the driving power supply device; The hydrogen-powered vehicle controls the hydrogen fuel energy supply device and the driving working equipment through the energy control method of the driving energy supply device according to any one of claims 1 to 8.

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