A method and device for correcting power generation of a range-extended vehicle and a range-extended mine truck

Abstract

The application discloses a power generation power correction method and device of a range-extended vehicle and a range-extended mine truck. The power generation power correction method of the range-extended vehicle comprises the following steps: acquiring a vehicle operation altitude; acquiring a current vehicle battery power value according to the vehicle operation altitude; acquiring a vehicle downhill energy recovery power value according to the vehicle operation altitude; acquiring a maximum battery power limit value; and correcting the power generation power of the vehicle according to the current vehicle power value, the vehicle downhill energy recovery power value and the maximum battery power limit value. The power generation power of the vehicle is corrected according to the vehicle operation altitude, the current vehicle battery power value, the vehicle downhill energy recovery power value and the maximum battery power limit value, so as to solve the problems of low or high battery power or battery process, and improve the driving reliability and safety of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a power generation power correction method and device for a range-extended vehicle and a range-extended mine truck. BACKGROUND

[0002] The range-extended mine truck is additionally equipped with a small auxiliary power generation device, i.e., a range extender, on the basis of a pure electric mine truck. When the battery power is insufficient, the range extender provides power for maintaining the operation of the vehicle or supplements the power of the battery. However, due to the operating environment of the range-extended mine truck, the battery power SOC of the range-extended mine truck is low, which affects the operation of the vehicle; the battery power of the range-extended mine truck is high, which limits the brake energy recovery and affects the economy and brake safety; and the range-extended power generation and energy recovery are not coordinated, which leads to overcharging of the battery and unbalanced power of the range-extended mine truck, which are the problems that need to be solved for the range-extended mine truck at present. SUMMARY

[0003] The present application provides a power generation power correction method and device for a range-extended vehicle and a range-extended mine truck to solve the problems of low or high battery power or battery process and improve the driving reliability and safety of the vehicle.

[0004] According to an aspect of the present application, a power generation power correction method for a range-extended vehicle is provided, comprising:

[0005] obtaining the operating altitude of the vehicle;

[0006] obtaining the current battery power value of the vehicle according to the operating altitude of the vehicle;

[0007] obtaining the downhill energy recovery power value of the vehicle according to the operating altitude of the vehicle;

[0008] obtaining the maximum limit value of the battery power;

[0009] correcting the power generation power of the vehicle according to the current battery power value, the downhill energy recovery power value of the vehicle, and the maximum limit value of the battery power.

[0010] Optionally, the operating altitude of the vehicle is obtained, comprising:

[0011] obtaining the load change information of the vehicle and the unloading switch change information of the vehicle;

[0012] determining the operating conditions of the vehicle according to the load change information of the vehicle and the unloading switch change information of the vehicle;

[0013] determining a plurality of maximum operating altitudes according to a plurality of operating conditions of the vehicle;

[0014] obtaining the operating altitude of the vehicle according to a plurality of maximum operating altitudes.

[0015] Optionally, the vehicle operation altitude is obtained according to the plurality of maximum operation altitudes, comprising:

[0016] The vehicle operation altitude is obtained by averaging the plurality of maximum operation altitudes.

[0017] Optionally, the power generation of the vehicle is corrected according to the current vehicle power value, the vehicle downhill energy recovery power value and the maximum battery power value, comprising:

[0018] determining whether the current vehicle power value is less than the difference between the maximum battery power value and the vehicle downhill energy recovery power value;

[0019] if yes, correcting the power generation of the vehicle;

[0020] if no, controlling the range extender of the vehicle to not generate power.

[0021] Optionally, the power generation of the vehicle is corrected, comprising:

[0022] obtaining a battery charging power;

[0023] obtaining a required energy recovery power and a required range extension power generation;

[0024] correcting the power generation of the vehicle according to the battery charging power, the required energy recovery power and the required range extension power generation.

[0025] Optionally, the power generation of the vehicle is corrected according to the battery charging power, the required energy recovery power and the required range extension power generation, comprising:

[0026] determining whether the sum of the required energy recovery power and the required range extension power generation is greater than the battery charging power;

[0027] if yes, reducing the required range extension power generation;

[0028] if no, continuing to determine whether the sum of the required energy recovery power and the required range extension power generation is greater than the battery charging power.

[0029] Optionally, after the range extension power generation is reduced, further comprising:

[0030] obtaining a preset range extension power generation reduction rate;

[0031] obtaining a current range extension power generation reduction rate;

[0032] determining whether the current range extension power generation reduction rate is less than the preset range extension power generation reduction rate;

[0033] if yes, reducing the required energy recovery power;

[0034] If no, continue to execute the step of reducing the demand growth power generation.

[0035] According to another aspect of the present application, there is provided a power generation power correction device of a range extended vehicle, by which the power generation power correction method of the range extended vehicle according to any one of the above aspects is executed.

[0036] Optionally, the power generation power correction device of the range extended vehicle comprises:

[0037] A vehicle operating altitude acquisition module is configured to acquire a vehicle operating altitude.

[0038] A current vehicle battery capacity value acquisition module is configured to acquire a current vehicle battery capacity value according to the vehicle operating altitude.

[0039] A vehicle downhill energy recovery capacity value acquisition module is configured to acquire a vehicle downhill energy recovery capacity value according to the vehicle operating altitude.

[0040] A battery capacity maximum limit value acquisition module is configured to acquire a battery capacity maximum limit value.

[0041] A vehicle power generation power correction module is configured to correct the power generation power of the vehicle according to the current vehicle capacity value, the vehicle downhill energy recovery capacity value and the battery capacity maximum limit value.

[0042] According to another aspect of the present application, there is provided a range extended mine truck, which comprises a range extender, an electric motor and a controller, the controller being connected to the range extender and the electric motor respectively.

[0043] The controller is configured to execute the power generation power correction method of the range extended vehicle according to any one of the above aspects.

[0044] The technical scheme of the embodiment of the present application provides a power generation power correction method of a range extended vehicle, which comprises: acquiring a vehicle operating altitude; acquiring a current vehicle battery capacity value according to the vehicle operating altitude; acquiring a vehicle downhill energy recovery capacity value according to the vehicle operating altitude; acquiring a battery capacity maximum limit value; and correcting the power generation power of the vehicle according to the current vehicle capacity value, the vehicle downhill energy recovery capacity value and the battery capacity maximum limit value. The power generation power of the vehicle is corrected according to the vehicle operating altitude, the current vehicle battery capacity value, the vehicle downhill energy recovery capacity value and the battery capacity maximum limit value, so as to solve the problem of low or high battery capacity or battery process, and improve the driving reliability and safety of the vehicle.

[0045] It is to be understood that the details set forth herein do not limit the scope of the embodiments of the application to the specific embodiments described. The foregoing detailed description has been presented for purposes of clarity and description. It is not intended to be exhaustive or to limit the application to the precise form described. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0047] Figure 1 A flow chart of a power generation power correction method of a range-extended vehicle provided by an embodiment of the present application;

[0048] Figure 2 A flow chart of another power generation power correction method of a range-extended vehicle provided by an embodiment of the present application;

[0049] Figure 3 A flow chart of another power generation power correction method of a range-extended vehicle provided by an embodiment of the present application;

[0050] Figure 4 A schematic diagram of a vehicle operating condition and a maximum operating altitude provided by an embodiment of the present application;

[0051] Figure 5 A flow chart of another power generation power correction method of a range-extended vehicle provided by an embodiment of the present application;

[0052] Figure 6 A flow chart of another power generation power correction method of a range-extended vehicle provided by an embodiment of the present application;

[0053] Figure 7 A flow chart of another power generation power correction method of a range-extended vehicle provided by an embodiment of the present application;

[0054] Figure 8 A flow chart of another power generation power correction method of a range-extended vehicle provided by an embodiment of the present application;

[0055] Figure 9 A structural schematic diagram of a power generation power correction device of a range-extended vehicle provided by an embodiment of the present application. DETAILED DESCRIPTION

[0056] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should fall within the protection scope of the present application.

[0057] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product, or device.

[0058] Figure 1 A flowchart of a power generation power correction method of a range-extended vehicle is provided for an embodiment of the present application. The embodiment can be applicable to the power generation power correction of a range-extended vehicle. The method can be executed by a power generation power correction device of the range-extended vehicle. The power generation power correction device of the range-extended vehicle can be realized in the form of hardware and / or software. The power generation power correction device of the range-extended vehicle can be configured in a range-extended truck. As shown in the figure, the method comprises: Figure 1

[0059] S101, obtaining a vehicle operating altitude.

[0060] The vehicle operating altitude can be understood as the highest altitude at which the vehicle runs. The vehicle operating altitude can be determined in combination with multiple vehicle cyclic operation conditions. The vehicle cyclic operation condition is that the range-extended vehicle is loaded at a loading point at a lower altitude, the vehicle climbs a slope under load, the battery power is used to provide power during the climbing process, the unloading point at the vehicle operating altitude is reached, unloading is performed, after the unloading is completed, the vehicle descends the slope under load through the vehicle operating altitude, and returns to the loading point. During the descending process, the generated power is recovered through braking or the battery is supplemented with power through the range extender.

[0061] S102, obtaining a current vehicle battery power value according to the vehicle operating altitude.

[0062] ​Wherein, when the vehicle is at the vehicle operation altitude, the subsequent working condition does not need to obtain the current vehicle battery power value corresponding to the climbing height again, so as to facilitate reasonable power recovery in the subsequent vehicle downhill process and ensure the overall power of the battery.

[0063] S103, obtaining the vehicle downhill energy recovery power value according to the vehicle operation altitude.

[0064] Wherein, the vehicle energy recovery power value generated in the downhill process of the current vehicle can be converted by combining the energy recovery principle and the vehicle operation altitude output by the current vehicle.

[0065] S104, obtaining the maximum battery power limit value.

[0066] Wherein, the maximum battery power limit value is not limited to 100%, but can also be 90%, 80% and other different values. The maximum battery power limit value can be selected according to the actual vehicle condition, and the embodiment of the present application is not specifically limited.

[0067] S105, correcting the power generation of the vehicle according to the current vehicle power value, the vehicle downhill energy recovery power value and the maximum battery power limit value.

[0068] Wherein, the current vehicle power value, the vehicle downhill energy recovery power value and the maximum battery power limit value are compared, and the power generation of the range extender in the range extended vehicle is adjusted accordingly, so as to ensure that the battery power of the vehicle is not lost, or to ensure that there is enough space for energy recovery in the vehicle battery during the unloading and empty load downhill process.

[0069] The embodiment of the present application obtains the vehicle operation altitude, obtains the current vehicle battery power value according to the vehicle operation altitude, obtains the vehicle downhill energy recovery power value according to the vehicle operation altitude, obtains the maximum battery power limit value, and corrects the power generation of the vehicle according to the current vehicle power value, the vehicle downhill energy recovery power value and the maximum battery power limit value. The power generation of the vehicle is corrected by the vehicle operation altitude, the current vehicle battery power value, the vehicle downhill energy recovery power value and the maximum battery power limit value, so as to solve the problems of low, high or battery process of the battery power, and improve the driving reliability and safety of the vehicle.

[0070] Optionally, Figure 2 Another flowchart of the power generation correction method of the range extended vehicle provided by the embodiment of the present application is shown in Figure 2 The method comprises the following steps:

[0071] S201, obtaining vehicle load change information and vehicle unloading switch change information.

[0072] The vehicle load change information includes a loaded state of the vehicle when loading and an unloaded state of the vehicle when unloading. The vehicle unloading switch change information includes an open state of the vehicle unloading switch and a closed state of the vehicle unloading switch.

[0073] S202, determining a vehicle operation condition according to the vehicle load change information and the vehicle unloading switch change information.

[0074] When the vehicle is in the unloaded state and the vehicle unloading switch is in the open state, it is considered that the vehicle is at a unloading point at this time, and the atmospheric pressure of the position where the vehicle is located at this time is collected, and then the maximum altitude at which the vehicle is currently located can be obtained according to the atmospheric pressure. When the vehicle is in the loaded state and the vehicle unloading switch is in the open state, it is considered that the vehicle has not reached the unloading point and has not reached the maximum altitude of operation at this time. The vehicle operation condition is usually a vehicle cyclic operation condition, and the vehicle cyclic operation condition includes that the vehicle runs to the unloading point after loading at the loading point, and then runs to the loading point after unloading.

[0075] S203, determining a plurality of maximum operation altitudes according to a plurality of vehicle operation conditions.

[0076] The range-extended vehicle usually needs to perform cyclic operation multiple times, and the vehicle needs to be loaded and unloaded multiple times during operation, so as to ensure the accuracy of the correction of the current range-extended vehicle. Therefore, a plurality of vehicle operation conditions are obtained, and the maximum operation altitude of the vehicle in each vehicle operation condition is obtained, and then a plurality of maximum operation altitudes are obtained.

[0077] S204, obtaining a vehicle operation altitude according to the plurality of maximum operation altitudes.

[0078] The plurality of maximum operation altitudes in the vehicle operation condition are processed by averaging, and then the vehicle operation altitude is obtained, so as to facilitate the accuracy of the correction of the vehicle power generation.

[0079] S205, obtaining a current vehicle battery power value according to the vehicle operation altitude.

[0080] S206, obtaining a vehicle downhill energy recovery power value according to the vehicle operation altitude.

[0081] S207, obtaining a maximum limit value of the battery power.

[0082] S208, correcting the vehicle power generation according to the current vehicle power value, the vehicle downhill energy recovery power value, and the maximum limit value of the battery power.

[0083] The embodiment of the present application obtains vehicle load change information and vehicle unloading switch change information; determines vehicle operation conditions according to the vehicle load change information and the vehicle unloading switch change information; determines a plurality of maximum operation altitudes according to a plurality of vehicle operation conditions; obtains a vehicle operation altitude according to the plurality of maximum operation altitudes; obtains a vehicle downhill energy recovery electric quantity value according to the vehicle operation altitude; obtains a maximum battery electric quantity limit value; and corrects the power generation power of the vehicle according to the current vehicle electric quantity value, the vehicle downhill energy recovery electric quantity value and the maximum battery electric quantity limit value. The power generation power of the vehicle is corrected according to the vehicle operation altitude, the current vehicle battery electric quantity value, the vehicle downhill energy recovery electric quantity value and the maximum battery electric quantity limit value, so as to solve the problems of low or high battery electric quantity or battery process, and improve the driving reliability and safety of the vehicle.

[0084] Optionally, Figure 3 Another flowchart of the method for correcting the power generation power of the range-extended vehicle is provided for the embodiment of the present application, as shown in the figure, the method comprises the following steps: Figure 3

[0085] S301, obtaining vehicle load change information and vehicle unloading switch change information.

[0086] S302, determining vehicle operation conditions according to the vehicle load change information and the vehicle unloading switch change information.

[0087] S303, determining a plurality of maximum operation altitudes according to a plurality of vehicle operation conditions.

[0088] S304, obtaining a vehicle operation altitude by performing mean value processing on the plurality of maximum operation altitudes.

[0089] For example, Figure 4 A schematic diagram of vehicle operation conditions and maximum operation altitudes is provided for the embodiment of the present application, as shown in the figure, when the vehicle operation altitude is obtained, three maximum operation altitudes A, B and C of three different vehicle operation conditions can be screened out, the different vehicle operation conditions can be adjacent vehicle operation conditions or interval vehicle operation conditions; the three maximum operation altitudes are subjected to mean value processing to obtain an average value, and the average value is defined as the vehicle operation altitude. Figure 4

[0090] S305, obtaining a current vehicle battery electric quantity value according to the vehicle operation altitude.

[0091] S306, obtaining a vehicle downhill energy recovery electric quantity value according to the vehicle operation altitude.

[0092] S307, obtaining a maximum battery electric quantity limit value.

[0093] ​​S308, correcting the power generation of the vehicle according to the current vehicle battery capacity value, the vehicle downhill energy recovery capacity value and the maximum battery capacity limit value.

[0094] The embodiment of the application corrects the power generation of the vehicle according to the current vehicle battery capacity value, the vehicle downhill energy recovery capacity value and the maximum battery capacity limit value. The embodiment of the application corrects the power generation of the vehicle according to the current vehicle battery capacity value, the vehicle downhill energy recovery capacity value and the maximum battery capacity limit value. The embodiment of the application corrects the power generation of the vehicle according to the current vehicle battery capacity value, the vehicle downhill energy recovery capacity value and the maximum battery capacity limit value.

[0095] Optionally, Figure 5 Another flowchart of the method for correcting the power generation of the range-extended vehicle is provided by the embodiment of the application, as shown in Figure 5 The method comprises the following steps:

[0096] S401, obtaining vehicle load change information and vehicle unloading switch change information.

[0097] S402, determining vehicle operating conditions according to the vehicle load change information and the vehicle unloading switch change information.

[0098] S403, determining a plurality of maximum operating altitudes according to a plurality of vehicle operating conditions.

[0099] S404, obtaining a vehicle operating altitude by mean processing a plurality of maximum operating altitudes.

[0100] S405, obtaining a current vehicle battery capacity value according to the vehicle operating altitude.

[0101] S406, obtaining a vehicle downhill energy recovery capacity value according to the vehicle operating altitude.

[0102] S407, obtaining a maximum battery capacity limit value.

[0103] S408, determining whether the current vehicle battery capacity value is less than the difference between the maximum battery capacity limit value and the vehicle downhill energy recovery capacity value; if yes, performing step S409; if no, performing step S410.

[0104] S409, correcting the power generation of the vehicle.

[0105] S410, controlling the range extender of the vehicle to not generate power.

[0106] The difference between the maximum limit of the battery power of the current extended-range vehicle and the energy recovery value of the vehicle downhill is processed, if the current vehicle power value remaining in the battery after the unloading of the current vehicle is completed is less than the difference between the maximum limit of the battery power and the energy recovery value of the vehicle downhill, at this time, it is considered that the extender of the vehicle needs to be started to work, the power generation power of the vehicle is corrected, and the battery power of the vehicle is ensured not to be depleted. If the current vehicle power value remaining in the battery after the unloading of the current vehicle is completed is greater than or equal to the difference between the maximum limit of the battery power and the energy recovery value of the vehicle downhill, at this time, it is considered that the extender of the vehicle does not need to work, and the battery needs to be appropriately discharged to ensure that the energy recovery value of the vehicle downhill can be recovered.

[0107] The vehicle running conditions are determined according to the vehicle load change information and the vehicle unloading switch change information, the plurality of maximum running altitudes are determined according to the plurality of vehicle running conditions, the mean value processing is performed according to the plurality of maximum running altitudes, the vehicle operation altitude is obtained, the vehicle downhill energy recovery power value is obtained according to the vehicle operation altitude, the maximum limit of the battery power is obtained, and the power generation power correction of the vehicle is determined by comparing the current vehicle power value and the difference between the maximum limit of the battery power and the vehicle downhill energy recovery power value. The problems of low, high or battery process of the battery power are solved, and the driving reliability and safety of the vehicle are improved.

[0108] Optionally, Figure 6 Another flowchart of the power generation power correction method of the extended-range vehicle provided by the embodiment of the present application is shown in Figure 6 The method comprises the following steps:

[0109] S501, vehicle load change information and vehicle unloading switch change information are obtained.

[0110] S502, vehicle running conditions are determined according to the vehicle load change information and the vehicle unloading switch change information.

[0111] S503, a plurality of maximum running altitudes are determined according to a plurality of vehicle running conditions.

[0112] S504, the mean value processing is performed according to the plurality of maximum running altitudes, and the vehicle operation altitude is obtained.

[0113] S505, the current vehicle battery power value is obtained according to the vehicle operation altitude.

[0114] S506, the vehicle downhill energy recovery power value is obtained according to the vehicle operation altitude.

[0115] S507, the maximum limit of the battery power is obtained.

[0116] S508, judging whether the current vehicle power value is less than the difference between the maximum battery power value and the vehicle downhill energy recovery power value; if yes, executing step S510; if no, executing step S509.

[0117] S509, controlling the range extender of the vehicle to not generate electricity.

[0118] S510, obtaining the battery charging power.

[0119] The battery charging power can be obtained according to the type of the battery in the range-extended vehicle, which is not limited in the embodiments of the present application.

[0120] S511, obtaining the required energy recovery power and the required range-extending power.

[0121] The required energy recovery power and the required range-extending power can be selected according to the setting requirement of the driver of the range-extended vehicle, and the required energy recovery power and the required range-extending power can be adaptively adjusted according to the controller instruction in the actual operation of the range-extended vehicle.

[0122] S512, correcting the vehicle power generation power according to the battery charging power, the required energy recovery power and the required range-extending power.

[0123] The required energy recovery power and the required range-extending power need to be compared with the battery charging power to correct the vehicle power generation power when the range extender generates electricity and the energy recovery works at the same time due to the limitation of the battery charging power, the energy recovery is preferentially guaranteed, and the vehicle economy and braking safety are improved.

[0124] The embodiments of the present application obtain the vehicle load change information and the vehicle unloading switch change information, determine the vehicle operating conditions according to the vehicle load change information and the vehicle unloading switch change information, determine a plurality of maximum operating altitudes according to a plurality of vehicle operating conditions, obtain the vehicle operating altitude by mean processing the plurality of maximum operating altitudes, obtain the vehicle downhill energy recovery power value according to the vehicle operating altitude, obtain the maximum battery power value, compare the current vehicle power value with the difference between the maximum battery power value and the vehicle downhill energy recovery power value to obtain the battery charging power, obtain the required energy recovery power and the required range-extending power, and correct the vehicle power generation power according to the battery charging power, the required energy recovery power and the required range-extending power. The problems of low or high battery power or battery process are solved, and the vehicle driving reliability and safety are improved.

[0125] Optionally, Figure 7 Another flowchart of the method for correcting the power generation power of the range-extended vehicle is provided in the embodiments of the present application, as shown in Figure 7As shown, the method comprises:

[0126] S601, obtaining vehicle load change information and vehicle unloading switch change information.

[0127] S602, determining vehicle operation conditions according to the vehicle load change information and the vehicle unloading switch change information.

[0128] S603, determining a plurality of maximum operation altitudes according to a plurality of vehicle operation conditions.

[0129] S604, obtaining a vehicle operation altitude by mean processing of the plurality of maximum operation altitudes.

[0130] S605, obtaining a current vehicle battery power value according to the vehicle operation altitude.

[0131] S606, obtaining a vehicle downhill energy recovery power value according to the vehicle operation altitude.

[0132] S607, obtaining a battery power maximum limit value.

[0133] S608, determining whether the current vehicle power value is less than the difference between the battery power maximum limit value and the vehicle downhill energy recovery power value; if yes, performing step S610; if no, performing step S609.

[0134] S609, controlling the vehicle's range extender to not generate power.

[0135] S610, obtaining a battery charging power.

[0136] S611, obtaining a required energy recovery power and a required range extension power generation power.

[0137] S612, determining whether the sum of the required energy recovery power and the required range extension power generation power is greater than the battery charging power; if yes, performing step S613; if no, performing step S612.

[0138] S613, reducing the required range extension power generation power.

[0139] When the sum of the required energy recovery power and the required range extension power generation power is greater than the battery charging power, the required energy recovery power and the required range extension power generation power need to be adjusted due to the influence of the battery charging power. However, since energy recovery needs to be prioritized to ensure the economy and braking safety of the entire floor, the required range extension power generation power needs to be appropriately reduced to control the vehicle's range extender to reduce output and reduce power generation.

[0140] The embodiment of the present application obtains vehicle load change information and vehicle unloading switch change information; determines vehicle operation conditions according to the vehicle load change information and the vehicle unloading switch change information; determines a plurality of maximum operation altitudes according to a plurality of vehicle operation conditions; obtains a vehicle operation altitude by mean processing of the plurality of maximum operation altitudes; obtains a vehicle downhill energy recovery electric quantity value according to the vehicle operation altitude; obtains a battery electric quantity maximum limit value; compares the current vehicle electric quantity value and the difference between the battery electric quantity maximum limit value and the vehicle downhill energy recovery electric quantity value, obtains a battery charging power, obtains a demand energy recovery power and a demand extended range power generation power, and adjusts the demand extended range power generation power according to the comparison between the sum of the demand energy recovery power and the demand extended range power generation power and the battery charging power. The problems of low or high battery electric quantity or battery process are solved, and the vehicle driving reliability and safety are improved.

[0141] Optionally, Figure 8 Another flowchart of the extended range vehicle power generation power correction method provided by the embodiment of the present application is shown in Figure 8 The method comprises the following steps:

[0142] S701, obtaining vehicle load change information and vehicle unloading switch change information.

[0143] S702, determining vehicle operation conditions according to the vehicle load change information and the vehicle unloading switch change information.

[0144] S703, determining a plurality of maximum operation altitudes according to a plurality of vehicle operation conditions.

[0145] S704, obtaining a vehicle operation altitude by mean processing of the plurality of maximum operation altitudes.

[0146] S705, obtaining a current vehicle battery electric quantity value according to the vehicle operation altitude.

[0147] S706, obtaining a vehicle downhill energy recovery electric quantity value according to the vehicle operation altitude.

[0148] S707, obtaining a battery electric quantity maximum limit value.

[0149] S708, judging whether the current vehicle electric quantity value is less than the difference between the battery electric quantity maximum limit value and the vehicle downhill energy recovery electric quantity value; if yes, executing step S710; if not, executing step S709.

[0150] S709, controlling the extended range device of the vehicle to not generate power.

[0151] S710, obtaining a battery charging power.

[0152] S711, obtaining a demand energy recovery power and a demand extended range power generation power.

[0153] S712, determining whether the sum of the required energy recovery power and the required extended-range power generation power is greater than the battery charging power; if yes, performing step S714; if no, performing step S712.

[0154] S713, reducing the required extended-range power generation power.

[0155] S714, obtaining a preset extended-range power generation power reduction rate.

[0156] The preset extended-range power generation power reduction rate can be set according to the extended-range power generation power reduction rate in the actual application process, and the embodiment of the present application is not limited specifically.

[0157] S715, obtaining a current extended-range power generation power reduction rate.

[0158] After the required extended-range power generation power is reduced, the extended-range power generation power is obtained in real time, and the change of the extended-range power generation power in a certain time period is calculated, and then the current extended-range power generation power reduction rate is obtained.

[0159] S716, determining whether the current extended-range power generation power reduction rate is less than the preset extended-range power generation power reduction rate; if yes, performing step S717; if no, performing step S713.

[0160] S717, reducing the required energy recovery power.

[0161] When the actual adjustment of the extended-range power generation power is performed, if the current extended-range power generation power reduction rate is less than the preset extended-range power generation power reduction rate, it is considered that the extended-range power generation power is reduced slowly and it is difficult to meet the requirement, at this time, the energy recovery power needs to be appropriately reduced, which can be adjusted by braking to avoid overcharging of the battery and cause damage to the battery. If the current extended-range power generation power reduction rate is greater than or equal to the preset extended-range power generation power reduction rate, it is considered that the extended-range power generation power can be adjusted, and then the energy recovery effect of the battery is ensured.

[0162] The embodiment of the present application obtains vehicle load change information and vehicle unloading switch change information, determines vehicle operation conditions according to the vehicle load change information and the vehicle unloading switch change information, determines a plurality of maximum operation altitudes according to a plurality of vehicle operation conditions, obtains a vehicle operation altitude by mean processing of the plurality of maximum operation altitudes, obtains a vehicle downhill energy recovery electric quantity value according to the vehicle operation altitude, obtains a battery electric quantity maximum limit value, compares a current vehicle electric quantity value with a difference between the battery electric quantity maximum limit value and the vehicle downhill energy recovery electric quantity value, obtains a battery charging power, obtains a required energy recovery power and a required extended range power generation power, compares a sum of the required energy recovery power and the required extended range power generation power with the battery charging power, and adjusts the required extended range power generation power correspondingly. In addition, a preset extended range power generation power reduction rate and a current extended range power generation power reduction rate are obtained and compared, and the required extended range power generation power or the required energy recovery power is adjusted correspondingly, so as to solve the problems of low or high battery electric quantity or battery process, and improve vehicle driving reliability and safety.

[0163] Based on the same inventive concept, the embodiment of the present application also provides a power generation power correction device of an extended range vehicle, which is used to execute the power generation power correction method of the extended range vehicle provided by any one of the embodiments of the present application, and can be realized by software and / or hardware.

[0164] Optionally, Figure 9 A structure schematic diagram of the power generation power correction device of the extended range vehicle provided by the embodiment of the present application is shown in Figure 9 The power generation power correction device of the extended range vehicle comprises:

[0165] The vehicle operation altitude obtaining module 201 is used to obtain a vehicle operation altitude.

[0166] The current vehicle battery electric quantity value obtaining module 202 is used to obtain a current vehicle battery electric quantity value according to the vehicle operation altitude.

[0167] The vehicle downhill energy recovery electric quantity value obtaining module 203 is used to obtain a vehicle downhill energy recovery electric quantity value according to the vehicle operation altitude.

[0168] The battery electric quantity maximum limit value obtaining module 204 is used to obtain a battery electric quantity maximum limit value.

[0169] The power generation power correction module 205 of the vehicle is used to correct the power generation power of the vehicle according to the current vehicle electric quantity value, the vehicle downhill energy recovery electric quantity value and the battery electric quantity maximum limit value.

[0170] The power generation power correction device of the range-extended vehicle provided by the embodiment of the present application comprises the technical features of the power generation power correction method of the range-extended vehicle provided by any of the embodiments of the present application, and can achieve the beneficial effects of the power generation power correction method of the range-extended vehicle provided by any of the embodiments of the present application. The same parts can be referred to the description of the power generation power correction method of the range-extended vehicle provided by the embodiment of the present application, and will not be repeated here.

[0171] Based on the same inventive concept, the present application further provides a range-extended mine truck, which comprises a range extender, a motor and a controller, the controller being connected with the range extender and the motor respectively; the controller is used to execute the power generation power correction method of the range-extended vehicle provided by any of the embodiments of the present application, and can achieve the beneficial effects of the power generation power correction method of the range-extended vehicle provided by any of the embodiments of the present application. The same parts can be referred to the description of the power generation power correction method of the range-extended vehicle provided by the embodiment of the present application, and will not be repeated here.

[0172] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for correcting the power generation of an extended-range vehicle, characterized in that: The method comprises the following steps: acquiring a vehicle operation altitude; acquiring a current vehicle battery power value according to the vehicle operation altitude; acquiring a vehicle downhill energy recovery power value according to the vehicle operation altitude; acquiring a maximum battery power limit value; correcting the power generation of the vehicle according to the current vehicle battery power value, the vehicle downhill energy recovery power value and the maximum battery power limit value; the step of correcting the power generation of the vehicle according to the current vehicle battery power value, the vehicle downhill energy recovery power value and the maximum battery power limit value comprises the following steps: determining whether the current vehicle battery power value is less than the difference between the maximum battery power limit value and the vehicle downhill energy recovery power value; if yes, correcting the power generation of the vehicle; if no, controlling the range extender of the vehicle to not generate power; the step of correcting the power generation of the vehicle comprises the following steps: acquiring a battery charging power; acquiring a required energy recovery power and a required range extender power generation; correcting the power generation of the vehicle according to the battery charging power, the required energy recovery power and the required range extender power generation.

2. The method of claim 1, wherein The method of acquiring the vehicle operation altitude comprises the following steps: acquiring vehicle load change information and vehicle unloading switch change information; determining vehicle operation conditions according to the vehicle load change information and the vehicle unloading switch change information; determining a plurality of maximum operation altitudes according to a plurality of the vehicle operation conditions; acquiring the vehicle operation altitude according to a plurality of the maximum operation altitudes.

3. The method of claim 2, wherein The method of acquiring the vehicle operation altitude according to a plurality of the maximum operation altitudes comprises the following steps: performing mean value processing on a plurality of the maximum operation altitudes to acquire the vehicle operation altitude.

4. The method of claim 1, wherein The method of correcting the power generation of the vehicle according to the battery charging power, the required energy recovery power and the required range extender power generation comprises the following steps: determining whether the sum of the required energy recovery power and the required range extender power generation is greater than the battery charging power; if yes, reducing the required range extender power generation; if no, continuing to perform the step of determining whether the sum of the required energy recovery power and the required range extender power generation is greater than the battery charging power.

5. The method of claim 4, wherein After the step of reducing the range extender power generation, the method further comprises the following steps: acquiring a preset range extender power generation reduction rate; acquiring a current range extender power generation reduction rate; determining whether the current range extender power generation reduction rate is less than the preset range extender power generation reduction rate; if yes, reducing the required energy recovery power; if no, continuing to perform the step of reducing the required range extender power generation.

6. An electric power generation correction device for a range extended vehicle, characterized by, The power generation correction device of the range extender vehicle is used to perform the power generation correction method of the range extender vehicle.

7. The electric power generation power correction device of the range extended vehicle according to claim 6, characterized by, The power generation correction device of the range extender vehicle comprises: a vehicle operation altitude acquisition module, configured to acquire a vehicle operation altitude; a current vehicle battery power value acquisition module, configured to acquire a current vehicle battery power value according to the vehicle operation altitude; a vehicle downhill energy recovery power value acquisition module, configured to acquire a vehicle downhill energy recovery power value according to the vehicle operation altitude; a maximum battery power limit value acquisition module, configured to acquire a maximum battery power limit value; The power generation power correction module of the vehicle is used for correcting the power generation power of the vehicle according to the current battery power value, the downhill energy recovery power value and the maximum limit value of the battery power.

8. A range extended utility vehicle characterized by, The range-extending mine truck comprises a range extender, an electric motor and a controller, wherein the controller is connected with the range extender and the electric motor respectively. The controller is used for executing the power generation power correction method of the range-extending vehicle in any one of claims 1-5.

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