Generated power correction method and device for extended-range vehicle and extended-range mine truck

Abstract

The invention discloses a method and a device for correcting the generated power of a range-extended vehicle and a range-extended mine truck. The method for correcting the generated power of the range-extended vehicle comprises the following steps: acquiring the operation altitude of the vehicle; obtaining a current vehicle battery electric quantity value according to the vehicle operation altitude; acquiring a vehicle downhill energy recovery electric quantity value according to the vehicle operation altitude; acquiring the maximum limit value of the battery power; and correcting the generated 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. The generated power of the vehicle is correspondingly corrected through the vehicle operation altitude, the current vehicle battery electric quantity value, the vehicle downhill energy recovery electric quantity value and the battery electric quantity maximum limit value, so that the problem that the battery electric quantity is too low or too high or the battery process is caused is solved, and the vehicle running reliability and safety are improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a method and device for correcting the power generation of an extended-range vehicle and an extended-range mining truck. Background Art

[0002] The extended-range mining truck is equipped with a small auxiliary power generation device, namely the range extender, on the basis of the pure electric mining truck. When the battery power is insufficient, the range extender provides the power to maintain the operation of the vehicle or replenish the battery power. However, affected by the operating environment of the extended-range mining truck, the battery power SOC of the extended-range mining truck is low, which affects the operation of the whole vehicle; the battery power of the extended-range mining truck is high, which limits the braking energy recovery and affects the economy and braking safety; the poor coordination between the extended-range power generation and energy recovery leads to overcharging of the battery and imbalance of the extended-range mining truck power, which is an urgent problem to be solved by the current extended-range mining truck. Summary of the invention

[0003] The present invention provides a method and device for correcting the power generation of an extended-range vehicle and an extended-range mining truck, so as to solve the problem of low or high battery power or battery failure, and improve the driving reliability and safety of the vehicle.

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

[0005] Get the vehicle operating altitude;

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

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

[0008] Get the maximum limit of battery power;

[0009] The vehicle's power generation power is corrected according to the current vehicle power value, the vehicle's downhill energy recovery power value and the battery power maximum limit.

[0010] Optionally, obtain the vehicle operating altitude, including:

[0011] Obtain vehicle load change information and vehicle unloading switch change information;

[0012] Determine the vehicle operating condition according to the vehicle load change information and the vehicle unloading switch change information;

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

[0014] The vehicle operating altitude is obtained according to the plurality of maximum operating altitudes.

[0015] Optionally, obtaining the vehicle operating altitude according to the multiple maximum operating altitudes includes:

[0016] The vehicle operating altitude is obtained by performing average processing based on the multiple maximum operating altitudes.

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

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

[0019] If so, the vehicle power generation is corrected;

[0020] If not, the vehicle's range extender is controlled not to generate electricity.

[0021] Optionally, the modified vehicle power generation includes:

[0022] Get battery charging power;

[0023] Obtain required energy recovery power and required range-extended power generation power;

[0024] The vehicle power generation power is corrected according to the battery charging power, the required energy recovery power and the required extended-range power generation power.

[0025] Optionally, the vehicle power generation power is corrected according to the battery charging power, the required energy recovery power and the required range-extended power generation power, including:

[0026] 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;

[0027] If so, the required range-extending power generation is reduced;

[0028] If not, continue to execute the step of 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.

[0029] Optionally, after reducing the range-extending power generation power, it also includes:

[0030] Obtaining a preset range-extended power generation power reduction rate;

[0031] Get the current range-extended power generation power reduction rate;

[0032] Determining whether the current range-extended power generation power reduction rate is less than the preset range-extended power generation power reduction rate;

[0033] If so, the required energy recovery power is reduced;

[0034] If not, continue with the step of reducing the demand growth power generation.

[0035] According to another aspect of the present invention, a power generation correction device for a range-extended vehicle is provided, and the power generation correction device for the range-extended vehicle executes the power generation correction method for the range-extended vehicle according to any one of the above aspects.

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

[0037] A module for obtaining the vehicle operating altitude is used to obtain the vehicle operating altitude;

[0038] A current vehicle battery power value acquisition module is used to acquire the current vehicle battery power value according to the vehicle operating altitude;

[0039] A vehicle downhill energy recovery power value acquisition module is used to acquire the vehicle downhill energy recovery power value according to the vehicle operating altitude;

[0040] A battery power maximum limit value acquisition module is used to obtain the battery power maximum limit value;

[0041] The vehicle's power generation correction module is used to correct the vehicle's power generation according to the current vehicle power value, the vehicle's downhill energy recovery power value and the battery power maximum limit.

[0042] According to another aspect of the present invention, there is provided an extended-range mining truck, the extended-range mining truck comprising: a range extender, a motor and a controller, the controller being connected to the range extender and the motor respectively;

[0043] The controller is used to execute the method for correcting the power generation of an extended-range vehicle described in any one of the above aspects.

[0044] The technical solution of the embodiment of the present invention provides a method for correcting the power generation of an extended-range vehicle, including: obtaining the vehicle operating altitude; obtaining the current vehicle battery power value according to the vehicle operating altitude; obtaining the vehicle downhill energy recovery power value according to the vehicle operating altitude; obtaining the maximum battery power limit; correcting the vehicle's power generation according to the current vehicle power value, the vehicle downhill energy recovery power value and the maximum battery power limit. The vehicle's power generation is corrected by the vehicle operating altitude, the current vehicle battery power value, the vehicle downhill energy recovery power value and the maximum battery power limit to solve the problem of low or high battery power or battery process, thereby improving the reliability and safety of vehicle driving.

[0045] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] 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.

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

[0048] Figure 2 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention;

[0049] Figure 3 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention;

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

[0051] Figure 5 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention;

[0052] Figure 6 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention;

[0053] Figure 7 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention;

[0054] Figure 8 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention;

[0055] Fig. 9 A schematic structural diagram of a power generation correction device for a range-extended vehicle provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0056] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0057] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0058] Figure 1 This is a flow chart of a method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention. This embodiment is applicable to the correction of the power generation of a range-extended vehicle. The method can be executed by a power generation correction device of a range-extended vehicle. The power generation correction device of the range-extended vehicle can be implemented in the form of hardware and / or software. The power generation correction device of the range-extended vehicle can be configured in a range-extended mining truck. Figure 1 As shown, the method includes:

[0059] S101, obtaining the vehicle operating altitude.

[0060] Among them, the vehicle operating altitude can be understood as the highest altitude to which the vehicle operates. The vehicle operating altitude can be determined in combination with multiple vehicle cycle operation conditions. The vehicle cycle operation condition is that the extended-range vehicle is loaded at a loading point at a lower altitude, the vehicle climbs the slope with load, and the battery power is used to provide power during the climbing process to reach the unloading point at the vehicle operating altitude to unload. After unloading is completed, the vehicle goes downhill empty at the vehicle operating altitude and returns to the loading point. During the downhill process, the power generated by the downhill is recovered by braking or the battery is replenished by the range extender.

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

[0062] Among them, when the vehicle is at the vehicle operating altitude, subsequent working conditions do not need to climb the altitude to obtain the current vehicle battery power value, which is convenient for reasonable power recovery during the subsequent downhill process of the vehicle to ensure the overall power of the battery.

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

[0064] Among them, the energy recovery principle and the vehicle operating altitude output by the current vehicle can be used to convert the vehicle energy recovery power value generated by the current vehicle during the downhill process.

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

[0066] The maximum limit of the battery power is not limited to 100%, and may also be 90%, 80%, or other different values. The maximum limit of the battery power may be selected according to the actual vehicle conditions, and the embodiment of the present invention does not make any specific limitation.

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

[0068] Among them, a comparison is made based on the current vehicle power value, the vehicle downhill energy recovery power value and the maximum battery power limit, and then the power generation power of the range extender in the extended-range vehicle is adjusted accordingly, so as to ensure that the battery power in the vehicle is not depleted, or to ensure that there is enough space in the vehicle battery for energy recovery during unloading and no-load downhill.

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

[0070] Optional, Figure 2 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention, such as Figure 2 As shown, the method includes:

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

[0072] The vehicle load change information includes the vehicle loading state and the vehicle unloading state. The vehicle unloading switch change information includes the vehicle unloading switch on state and the vehicle unloading switch off state.

[0073] S202, determining the vehicle operating condition based on the vehicle load change information and the vehicle unloading switch change information.

[0074] Among them, if the vehicle is unloading and the vehicle unloading switch is turned on, it is considered that the vehicle is at the unloading point at this time, and the atmospheric pressure at the vehicle's location at this time is collected, and then the vehicle's current maximum altitude can be obtained based on the atmospheric pressure. If the vehicle is loading and the vehicle unloading switch is turned on, it is considered that the vehicle has not yet reached the unloading point and has not reached the maximum altitude of operation. The vehicle operating condition is usually the vehicle cycle operating condition, which includes the vehicle running to the unloading point after loading at the loading point, and then running to the loading point after unloading.

[0075] S203: Determine multiple maximum operating altitudes based on multiple vehicle operating conditions.

[0076] Among them, extended-range vehicles usually need to perform multiple cycles, and multiple loading and unloading are required during the operation of the vehicle. Therefore, in order to ensure the accuracy of the correction of the current extended-range vehicle, multiple vehicle operating conditions are obtained, and the maximum operating altitude to which the vehicle runs in each vehicle operating condition is obtained, thereby obtaining multiple maximum operating altitudes.

[0077] S204: Obtain the vehicle operating altitude according to multiple maximum operating altitudes.

[0078] Among them, multiple maximum operating altitudes under the vehicle operating conditions are averaged to obtain the vehicle operating altitude, which is convenient for correcting the accuracy of the vehicle's power generation.

[0079] S205: Obtain the current vehicle battery power value according to the vehicle operating altitude.

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

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

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

[0083] The embodiment of the present invention obtains vehicle load change information and vehicle unloading switch change information; determines the vehicle operating condition according to the vehicle load change information and the vehicle unloading switch change information; determines multiple maximum operating altitudes according to multiple vehicle operating conditions; obtains the vehicle operating altitude according to the multiple maximum operating altitudes; obtains the vehicle downhill energy recovery power value according to the vehicle operating altitude; obtains the battery power maximum limit; corrects the vehicle's power generation according to the current vehicle power value, the vehicle downhill energy recovery power value and the battery power maximum limit. The vehicle's power generation is corrected by the vehicle operating altitude, the current vehicle battery power value, the vehicle downhill energy recovery power value and the battery power maximum limit to solve the problem of low or high battery power or battery process, thereby improving the vehicle's driving reliability and safety.

[0084] Optional, Figure 3 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention, such as Figure 3 As shown, the method includes:

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

[0086] S302, determining the vehicle operating condition based on the vehicle load change information and the vehicle unloading switch change information.

[0087] S303: Determine multiple maximum operating altitudes based on multiple vehicle operating conditions.

[0088] S304: Perform average processing based on multiple maximum operating altitudes to obtain the vehicle operating altitude.

[0089] Among them, for example, Figure 4 A schematic diagram of a vehicle operating condition and a maximum operating altitude provided by an embodiment of the present invention, such as Figure 4 As shown, when the vehicle operating altitude is obtained, three maximum operating altitudes A, B and C of three different vehicle operating conditions can be screened out, and the different vehicle operating conditions can be adjacent vehicle operating conditions or interval vehicle operating conditions; the three maximum operating altitudes are averaged to obtain an average value, which is defined as the vehicle operating altitude.

[0090] S305: Obtain the current vehicle battery power value according to the vehicle operating altitude.

[0091] S306, obtaining the vehicle's downhill energy recovery power value according to the vehicle's operating altitude.

[0092] S307, obtaining the maximum limit of the battery power.

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

[0094] The embodiment of the present invention obtains vehicle load change information and vehicle unloading switch change information; determines the vehicle operating condition according to the vehicle load change information and the vehicle unloading switch change information; determines multiple maximum operating altitudes according to multiple vehicle operating conditions; performs average processing according to multiple maximum operating altitudes to obtain the vehicle operating altitude; obtains the vehicle downhill energy recovery power value according to the vehicle operating altitude; obtains the battery power maximum limit; and corrects the vehicle's power generation according to the current vehicle power value, the vehicle downhill energy recovery power value, and the battery power maximum limit. The vehicle's power generation is corrected by the vehicle operating altitude, the current vehicle battery power value, the vehicle downhill energy recovery power value, and the battery power maximum limit to solve the problem of low or high battery power or battery process, thereby improving the vehicle's driving reliability and safety.

[0095] Optional, Figure 5 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention, such as Figure 5 As shown, the method includes:

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

[0097] S402, determining the vehicle operating condition based on the vehicle load change information and the vehicle unloading switch change information.

[0098] S403: Determine multiple maximum operating altitudes based on multiple vehicle operating conditions.

[0099] S404: Perform average processing based on multiple maximum operating altitudes to obtain the vehicle operating altitude.

[0100] S405: Obtain the current vehicle battery power value according to the vehicle operating altitude.

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

[0102] S407, obtaining the maximum limit of the battery power.

[0103] S408, determine whether the current vehicle power value is less than the difference between the maximum battery power limit and the vehicle downhill energy recovery power value; if so, execute step S409; if not, execute step S410.

[0104] S409, correcting the vehicle power generation.

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

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

[0107] The embodiment of the present invention obtains vehicle load change information and vehicle unloading switch change information; determines the vehicle operating condition according to the vehicle load change information and the vehicle unloading switch change information; determines multiple maximum operating altitudes according to multiple vehicle operating conditions; performs average processing according to multiple maximum operating altitudes to obtain the vehicle operating altitude; obtains the vehicle downhill energy recovery power value according to the vehicle operating altitude; obtains the battery power maximum limit; and compares the current vehicle power value with the difference between the battery power maximum limit and the vehicle downhill energy recovery power value to determine whether to perform the vehicle power generation correction. This solves the problem of low or high battery power or battery process, and improves the reliability and safety of vehicle driving.

[0108] Optional, Figure 6 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention, such as Figure 6 As shown, the method includes:

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

[0110] S502, determining the vehicle operating condition based on the vehicle load change information and the vehicle unloading switch change information.

[0111] S503: Determine multiple maximum operating altitudes based on multiple vehicle operating conditions.

[0112] S504: Perform average processing based on multiple maximum operating altitudes to obtain the vehicle operating altitude.

[0113] S505: Obtain the current vehicle battery power value according to the vehicle operating altitude.

[0114] S506, obtaining the vehicle's downhill energy recovery power value according to the vehicle's operating altitude.

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

[0116] S508, determine whether the current vehicle power value is less than the difference between the maximum battery power limit and the vehicle downhill energy recovery power value; if so, execute step S510; if not, execute step S509.

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

[0118] S510, obtaining battery charging power.

[0119] The battery charging power may be obtained according to the battery type in the range-extended vehicle, and is not specifically limited in the embodiment of the present invention.

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

[0121] Among them, the required energy recovery power and the required extended-range power generation power can be selected according to the set requirements of the extended-range vehicle driver, and during the actual operation of the extended-range vehicle, the required energy recovery power and the required extended-range power generation power can be adaptively adjusted according to the controller instructions.

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

[0123] Among them, due to the limitation of battery charging power, when the range extender generates electricity and recovers energy at the same time, the required energy recovery power and the required range-extended power generation power need to be compared with the battery charging power to correct the vehicle's power generation power, giving priority to energy recovery, thereby improving the economy and braking safety of the entire vehicle.

[0124] The embodiment of the present invention obtains vehicle load change information and vehicle unloading switch change information; determines vehicle operating conditions according to vehicle load change information and vehicle unloading switch change information; determines multiple maximum operating altitudes according to multiple vehicle operating conditions; performs mean processing according to multiple maximum operating altitudes to obtain vehicle operating altitude; obtains vehicle downhill energy recovery power value according to vehicle operating altitude; obtains battery power maximum limit; obtains battery charging power according to the difference between the current vehicle power value and the maximum battery power limit and the vehicle downhill energy recovery power value, obtains required energy recovery power and required range-extending power generation, and corrects vehicle power generation power according to battery charging power, required energy recovery power and required range-extending power generation. This solves the problem of low or high battery power or battery process, and improves vehicle driving reliability and safety.

[0125] Optional, Figure 7 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention, such as Figure 7As shown, the method includes:

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

[0127] S602, determining the vehicle operating condition based on the vehicle load change information and the vehicle unloading switch change information.

[0128] S603: Determine multiple maximum operating altitudes based on multiple vehicle operating conditions.

[0129] S604: Perform average processing based on multiple maximum operating altitudes to obtain the vehicle operating altitude.

[0130] S605: Obtain the current vehicle battery power value according to the vehicle operating altitude.

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

[0132] S607, obtaining the maximum limit of the battery power.

[0133] S608, determine whether the current vehicle power value is less than the difference between the maximum battery power limit and the vehicle downhill energy recovery power value; if so, execute step S610; if not, execute step S609.

[0134] S609, controlling the range extender of the vehicle to not generate electricity.

[0135] S610, obtaining battery charging power.

[0136] S611, obtaining the required energy recovery power and the required range-extended power generation power.

[0137] S612, determine 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 so, execute step S613; if not, execute step S612.

[0138] S613, reduce the required range-extending power generation power.

[0139] Among them, when the sum of the required energy recovery power and the required extended-range power generation power is greater than the battery charging power, the required energy recovery power and the required extended-range power generation power need to be adjusted due to the influence of the battery charging power. However, since it is necessary to give priority to energy recovery and ensure the economy and braking safety of the entire layer, it is necessary to appropriately reduce the required extended-range power generation power, control the vehicle's range extender to reduce output, and reduce power generation.

[0140] The embodiment of the present invention obtains vehicle load change information and vehicle unloading switch change information; determines vehicle operating conditions according to vehicle load change information and vehicle unloading switch change information; determines multiple maximum operating altitudes according to multiple vehicle operating conditions; performs mean processing according to multiple maximum operating altitudes to obtain vehicle operating altitude; obtains vehicle downhill energy recovery power value according to vehicle operating altitude; obtains battery power maximum limit; obtains battery charging power according to the difference between the current vehicle power value and the maximum battery power limit and the vehicle downhill energy recovery power value, obtains required energy recovery power and required extended range power generation power, and adjusts the required extended range power generation power accordingly according to the comparison between the sum of the required energy recovery power and the required extended range power generation power and the battery charging power. This solves the problem of low or high battery power or battery process, and improves vehicle driving reliability and safety.

[0141] Optional, Figure 8 A flowchart of another method for correcting the power generation of a range-extended vehicle provided by an embodiment of the present invention, such as Figure 8 As shown, the method includes:

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

[0143] S702, determining the vehicle operating condition based on the vehicle load change information and the vehicle unloading switch change information.

[0144] S703: Determine multiple maximum operating altitudes based on multiple vehicle operating conditions.

[0145] S704: Perform average processing based on multiple maximum operating altitudes to obtain the vehicle operating altitude.

[0146] S705: Obtain the current vehicle battery power value based on the vehicle operating altitude.

[0147] S706, obtaining the vehicle's downhill energy recovery power value according to the vehicle's operating altitude.

[0148] S707, obtain the maximum limit of battery power.

[0149] S708, determine whether the current vehicle power value is less than the difference between the maximum battery power limit and the vehicle downhill energy recovery power value; if so, execute step S710; if not, execute step S709.

[0150] S709, controlling the vehicle's range extender to not generate electricity.

[0151] S710, obtaining battery charging power.

[0152] S711, obtaining the required energy recovery power and the required range-extended power generation power.

[0153] S712, determine 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 so, execute step S714; if not, execute step S712.

[0154] S713, reduce the required range-extending power generation power.

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

[0156] Among them, the preset extended-range power generation power reduction rate can be set accordingly according to the extended-range power generation power reduction rate in actual application, and the embodiment of the present invention does not make a specific limitation.

[0157] S715, obtaining the current rate of decrease of the extended-range power generation power.

[0158] Among them, after reducing the demand extended-range power generation power, the extended-range power generation power is obtained in real time, and then the change of the extended-range power generation power in a certain period of time 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 a preset extended-range power generation power reduction rate; if so, executing step S717; if not, executing step S713.

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

[0161] Among them, during the actual adjustment process of the extended-range power generation, if the current extended-range power generation reduction rate is less than the preset extended-range power generation reduction rate, it is considered that the extended-range power generation is reduced slowly and it is difficult to meet the demand. At this time, it is necessary to appropriately reduce the energy recovery power, which can be adjusted by braking to avoid overcharging the battery and causing battery damage. If the current extended-range power generation reduction rate is greater than or equal to the preset extended-range power generation reduction rate, it is considered that the extended-range power generation can still be adjusted, thereby ensuring the energy recovery effect of the battery.

[0162] The embodiment of the present invention obtains vehicle load change information and vehicle unloading switch change information; determines the vehicle operating conditions according to the vehicle load change information and the vehicle unloading switch change information; determines multiple maximum operating altitudes according to multiple vehicle operating conditions; performs average processing according to multiple maximum operating altitudes to obtain the vehicle operating altitude; obtains the vehicle downhill energy recovery power value according to the vehicle operating altitude; obtains the battery power maximum limit; obtains the battery charging power according to the difference between the current vehicle power value and the battery power maximum limit and the vehicle downhill energy recovery power value, obtains the required energy recovery power and the required extended range power generation power, and adjusts the required extended range power generation power according to the comparison of the sum of the required energy recovery power and the required extended range power generation power with the battery charging power. And obtains the preset extended range power generation power reduction rate and the current extended range power generation power reduction rate and compares them, and adjusts the required extended range power generation power or the required energy recovery power accordingly, so as to solve the problem of low or high battery power or battery process, and improve the driving reliability and safety of the vehicle.

[0163] Based on the same inventive concept, an embodiment of the present invention further provides a power generation correction device for an extended-range vehicle, which is used to execute the power generation correction method for an extended-range vehicle provided in any embodiment of the present invention, and the power generation correction device for an extended-range vehicle can be implemented by software and / or hardware.

[0164] Optional, Fig. 9 A schematic diagram of a power generation correction device for a range-extended vehicle provided by an embodiment of the present invention is shown in FIG. Fig. 9 As shown, the power generation correction device of the range-extended vehicle includes:

[0165] A module 201 for obtaining the vehicle operating altitude is used to obtain the vehicle operating altitude;

[0166] The current vehicle battery power value acquisition module 202 is used to acquire the current vehicle battery power value according to the vehicle operating altitude;

[0167] A vehicle downhill energy recovery power value acquisition module 203, used to acquire the vehicle downhill energy recovery power value according to the vehicle operating altitude;

[0168] A battery power maximum limit value acquisition module 204 is used to acquire the battery power maximum limit value;

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

[0170] The power generation correction device for an extended-range vehicle provided in an embodiment of the present invention includes the technical features of the power generation correction method for an extended-range vehicle provided in any embodiment of the present invention, and can achieve the beneficial effects of the power generation correction method for an extended-range vehicle provided in any embodiment of the present invention. The similarities can be referred to the above description of the power generation correction method for an extended-range vehicle provided in an embodiment of the present invention, and will not be repeated here.

[0171] Based on the same inventive concept, an extended-range mining truck is also provided according to the present invention. The extended-range mining truck includes: a range extender, a motor and a controller, and the controller is connected to the range extender and the motor respectively; the controller is used to execute the power generation power correction method of the extended-range vehicle described in any one of the above embodiments, which can achieve the beneficial effect of the power generation power correction method of the extended-range vehicle provided in any embodiment of the present invention. The similarities can be referred to the above description of the power generation power correction method of the extended-range vehicle provided in the embodiment of the present invention, and will not be repeated here.

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

Claims

1. A method for correcting the power generation of a range-extended vehicle, characterized in that: include: Get the vehicle operating altitude; Acquire the current battery power value of the vehicle according to the vehicle operating altitude; Acquire the downhill energy recovery power value of the vehicle according to the vehicle operating altitude; Get the maximum limit of battery power; The vehicle's power generation power is corrected according to the current vehicle power value, the vehicle's downhill energy recovery power value and the battery power maximum limit.

2. The method for correcting the power generation of a range-extended vehicle according to claim 1, characterized in that: Get the vehicle operating altitude, including: Obtain vehicle load change information and vehicle unloading switch change information; Determine the vehicle operating condition according to the vehicle load change information and the vehicle unloading switch change information; determining a plurality of maximum operating altitudes according to a plurality of the vehicle operating conditions; The vehicle operating altitude is obtained according to the plurality of maximum operating altitudes.

3. The method for correcting the power generation of a range-extended vehicle according to claim 2, characterized in that: Obtaining the vehicle operating altitude according to the plurality of maximum operating altitudes includes: The vehicle operating altitude is obtained by performing average processing based on the multiple maximum operating altitudes.

4. The method for correcting the power generation of a range-extended vehicle according to claim 1, characterized in that: The power generation power of the vehicle is corrected according to the current vehicle power value, the vehicle downhill energy recovery power value and the maximum limit of the battery power, including: Determining whether the current vehicle power value is less than the difference between the maximum limit of the battery power and the vehicle downhill energy recovery power value; If so, the vehicle power generation is corrected; If not, the vehicle's range extender is controlled not to generate electricity.

5. The method for correcting the power generation of a range-extended vehicle according to claim 4, characterized in that: Corrected vehicle power generation includes: Get battery charging power; Obtain required energy recovery power and required range-extended power generation power; The vehicle power generation power is corrected according to the battery charging power, the required energy recovery power and the required extended-range power generation power.

6. The method for correcting the power generation of a range-extended vehicle according to claim 5, characterized in that: The vehicle power generation power is corrected according to the battery charging power, the required energy recovery power and the required range-extended power generation power, including: 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 so, the required range-extending power generation is reduced; If not, continue to execute the step of 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.

7. The method for correcting the power generation of a range-extended vehicle according to claim 6, characterized in that: After reducing the range-extending power generation, it also includes: Obtaining a preset range-extended power generation power reduction rate; Get the current range-extended power generation power reduction rate; Determining whether the current range-extended power generation power reduction rate is less than the preset range-extended power generation power reduction rate; If so, the required energy recovery power is reduced; If not, continue with the step of reducing the demand growth power generation.

8. A power generation correction device for a range-extended vehicle, characterized in that: The range-extended vehicle power generation correction device executes the range-extended vehicle power generation correction method according to any one of claims 1 to 7.

9. The power generation correction device for a range-extended vehicle according to claim 8, characterized in that: The power generation correction device of the extended-range vehicle comprises: A module for obtaining the vehicle operating altitude is used to obtain the vehicle operating altitude; A current vehicle battery power value acquisition module is used to acquire the current vehicle battery power value according to the vehicle operating altitude; A vehicle downhill energy recovery power value acquisition module is used to acquire the vehicle downhill energy recovery power value according to the vehicle operating altitude; A battery power maximum limit value acquisition module is used to obtain the battery power maximum limit value; The vehicle's power generation correction module is used to correct the vehicle's power generation according to the current vehicle power value, the vehicle's downhill energy recovery power value and the battery power maximum limit.

10. An extended-range mining truck, characterized in that: The extended-range mining truck comprises: a range extender, a motor and a controller, wherein the controller is connected to the range extender and the motor respectively; The controller is used to execute the method for correcting the power generation of the extended-range vehicle according to any one of claims 1 to 7.

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