Range extender control method and device, equipment and medium

Abstract

The invention discloses a range extender control method and device, equipment and a medium. The method comprises the steps that the real-time battery electric quantity of a power battery corresponding to the extended-range hybrid vehicle is obtained, and the power battery and a hybrid vehicle range extender are installed on the extended-range hybrid vehicle; determining an electric quantity range to which the real-time battery electric quantity belongs according to the real-time battery electric quantity; acquiring target generated power corresponding to the electric quantity range to which the real-time battery electric quantity belongs; and operating the range extender according to the target generated power and the electric quantity range to which the real-time battery electric quantity belongs, so that the range extender judges whether to supply power to the driving motor or not according to the difference between the power of the driving motor and the target generated power, and judges whether to charge the power battery or not according to the electric quantity range to which the real-time battery electric quantity belongs. According to the embodiment of the invention, the control accuracy and efficiency of the range extender can be improved.

Description

Technical Field

[0001] The present invention relates to the field of data processing technology, and in particular to a range extender control method, device, equipment and medium. Background Art

[0002] With the rapid development of science and technology, the types of vehicles are gradually increasing. Among them, the application of extended-range hybrid vehicles has appeared in all aspects of people's lives. The power battery and range extender of the extended-range hybrid vehicle can both power the drive motor to drive the extended-range hybrid vehicle.

[0003] Currently, the power battery and range extender of a range-extended hybrid vehicle alternately supply power to the drive motor, which then drives the vehicle.

[0004] However, when the acceleration of the extended-range hybrid vehicle changes suddenly, the battery charge changes, causing the power battery to continuously charge and discharge, resulting in a large amount of energy loss. Summary of the invention

[0005] The present invention provides a range extender control method, device, equipment and medium to improve the accuracy of range extender control.

[0006] In a first aspect, an embodiment of the present invention provides a range extender control method, the method comprising:

[0007] Acquire the real-time battery power of the power battery corresponding to the extended-range hybrid vehicle, where the extended-range hybrid vehicle is equipped with a power battery and a hybrid vehicle range extender;

[0008] According to the real-time battery power, determine the power range to which the real-time battery power belongs;

[0009] Obtain the target power generation power corresponding to the power range to which the real-time battery power belongs;

[0010] The range extender is operated according to the target power generation power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs.

[0011] In a second aspect, an embodiment of the present invention further provides a range extender control device, the device comprising:

[0012] A power acquisition module is used to acquire the real-time battery power of the power battery corresponding to the extended-range hybrid vehicle, where the extended-range hybrid vehicle is equipped with a power battery and a hybrid vehicle range extender;

[0013] A range determination module, used to determine the power range to which the real-time battery power belongs according to the real-time battery power;

[0014] A power acquisition module is used to obtain the target power generation power corresponding to the power range to which the real-time battery power belongs;

[0015] The data judgment module is used to operate the range extender according to the target power generation power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs.

[0016] In a third aspect, an embodiment of the present invention further provides a range extender control device, the range extender control device comprising:

[0017] at least one processor; and

[0018] a memory communicatively connected to at least one processor; wherein,

[0019] The memory stores a computer program that can be executed by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can execute the range extender control method of any embodiment of the present invention.

[0020] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the range extender control method of any embodiment of the present invention when executed by a processor.

[0021] The technical solution of the embodiment of the present invention obtains the real-time battery power of the power battery corresponding to the extended-range hybrid vehicle, and the extended-range hybrid vehicle is equipped with a power battery and a hybrid vehicle range extender; determines the power range to which the real-time battery power belongs according to the real-time battery power; obtains the target power generation power corresponding to the power range to which the real-time battery power belongs; operates the range extender according to the target power generation power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs, thereby reducing the number of battery charging and discharging times, reducing power loss, and saving power.

[0022] 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

[0023] 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.

[0024] Figure 1 is a flow chart of a range extender control method provided according to Embodiment 1 of the present invention;

[0025] Figure 2 is a flow chart of a range extender control method provided according to Embodiment 2 of the present invention;

[0026] Figure 3 is a structural diagram of a range extender control device provided according to an embodiment of the present invention;

[0027] Figure 4 It is a structural schematic diagram of a range extender control device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] 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.

[0029] 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 thereof 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 that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the technical solution of the embodiment of the present invention, the acquisition, storage and application of real-time battery power, etc. are in compliance with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0031] Embodiment 1

[0032] Figure 1 This is a flow chart of a range extender control method provided in Embodiment 1 of the present invention. The embodiment of the present invention is applicable to the case of range extender control, and the method can be executed by a range extender control device, which can be implemented in the form of hardware and / or software.

[0033] See also Figure 1 The range extender control method shown includes:

[0034] S101. Acquire a real-time battery power level of a power battery corresponding to a range-extended hybrid vehicle, where the range-extended hybrid vehicle is equipped with a power battery and a hybrid vehicle range extender.

[0035] Among them, the extended-range hybrid vehicle can be a car with power battery drive and internal combustion engine drive functions. The extended-range hybrid vehicle can be equipped with an electric motor and an engine, the electric motor is responsible for driving the wheels, and the engine is used to generate electricity to charge the power battery to ensure continuous power supply during driving. The hybrid vehicle range extender can be an automotive component that can provide additional electrical energy to enable the extended-range hybrid vehicle to increase its mileage. The hybrid vehicle range extender can be a combination of an engine and a generator, and its core function is not to directly provide power to the extended-range hybrid vehicle, but to drive the generator to generate electricity. When the built-in power battery of the extended-range hybrid vehicle is insufficient, the hybrid vehicle range extender will start and drive the generator to generate electricity, which is then transmitted to the motor and converted into mechanical energy by the motor to drive the vehicle forward. In addition, the extended-range hybrid vehicle can operate in pure electric mode, effectively avoiding the problem of vehicle breakdown caused by exhaustion of power. The power battery can be a battery built into the extended-range hybrid vehicle that provides power to the motor of the vehicle. The real-time battery power can be the power obtained in real time from the power battery. Specifically, the extended-range hybrid vehicle is equipped with a power battery, a drive motor and a hybrid vehicle range extender. From the start of the extended-range hybrid vehicle, the remaining power of the power battery of the extended-range hybrid vehicle is monitored in real time to obtain the real-time battery power of the power battery corresponding to the extended-range hybrid vehicle.

[0036] S102: Determine the power range to which the real-time battery power belongs according to the real-time battery power.

[0037] The power range may be a numerical range to which the value of the remaining power of the power battery belongs.

[0038] Specifically, different real-time battery power levels may belong to different power ranges. Different power ranges correspond to different range extender control methods. Therefore, it is necessary to monitor the remaining power level and power range of the power battery in real time.

[0039] S103: Obtain a target power generation power corresponding to a power range to which the real-time battery power belongs.

[0040] Among them, the target power generation may refer to the electric power that the range extender can generate during operation, and the engine drives the generator to generate electricity to provide additional power for the extended-range hybrid vehicle. Specifically, different real-time battery power levels may belong to different power ranges. Different power ranges correspond to different target power generation powers. The hybrid vehicle range extender provides different additional power for the extended-range hybrid vehicle through different target power generation powers.

[0041] S104. According to the target power generation power and the power range to which the real-time battery power belongs, the range extender is operated, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs.

[0042] The power of the drive motor may be the effective power output by the drive motor in the extended-range hybrid vehicle to drive the vehicle to move.

[0043] Specifically, according to the target power generation power and the power range to which the real-time battery power belongs, the range extender is operated so that the range extender compares the power of the drive motor with the target power generation power, and determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs. By processing the multi-dimensional data acquired in real time, it is determined whether to supply power to the drive motor and at what target power generation power the range extender needs to operate to provide electrical energy to the drive motor. At the same time, it can be determined whether the range extender needs to charge the power battery and whether the power battery needs to be discharged to provide electrical energy to the drive motor. The judgment conditions are increased, the number of times the power battery is charged and discharged is reduced, the power loss caused by each charging and discharging operation of the power battery is reduced, and electrical energy is saved.

[0044] The technical solution of the embodiment of the present invention obtains the real-time battery power of the power battery corresponding to the extended-range hybrid vehicle, and the extended-range hybrid vehicle is equipped with a power battery and a hybrid vehicle range extender; determines the power range to which the real-time battery power belongs according to the real-time battery power; obtains the target power generation power corresponding to the power range to which the real-time battery power belongs; operates the range extender according to the target power generation power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs, thereby reducing the number of battery charging and discharging times, reducing power loss, and saving power.

[0045] Embodiment 2

[0046] Figure 2This is a flow chart of a range extender control method provided in Embodiment 2 of the present invention. Based on the above embodiments, this embodiment of the present invention optimizes and improves the range extender control operation.

[0047] Further, "obtaining the target power generation corresponding to the power range to which the real-time battery power belongs" is refined into "querying at least one judgment parameter corresponding to the power range to which the real-time battery power belongs and the judgment conditions corresponding to each judgment parameter according to the power range to which the real-time battery power belongs; detecting the extended-range hybrid vehicle for each judgment parameter to obtain the judgment parameter value corresponding to the judgment parameter; judging the judgment parameter value corresponding to the judgment parameter according to the judgment condition corresponding to the judgment parameter, and obtaining the judgment result corresponding to the power range to which the real-time battery power belongs; determining the target power generation corresponding to the power range to which the real-time battery power belongs according to the judgment result corresponding to the power range to which the real-time battery power belongs" to improve the operation of the range extender control.

[0048] It should be noted that for the parts not described in detail in the embodiments of the present invention, reference may be made to the descriptions of other embodiments.

[0049] See also Figure 2 The range extender control method shown includes:

[0050] S201. Acquire the real-time battery power of a power battery corresponding to a range-extended hybrid vehicle, where the range-extended hybrid vehicle is equipped with a power battery and a hybrid vehicle range extender.

[0051] S202: Determine the power range to which the real-time battery power belongs according to the real-time battery power.

[0052] S203: According to the power range to which the real-time battery power belongs, query at least one judgment parameter corresponding to the power range to which the real-time battery power belongs and the judgment conditions corresponding to each judgment parameter.

[0053] The judgment parameter may be an indicator to be judged in the hybrid vehicle of Zengcheng, and the judgment condition may be a rule for judging the judgment parameter.

[0054] Specifically, different power ranges may correspond to different types of judgment parameters to be judged, and the number of judgment parameters may also be different. According to the power range to which the real-time battery power belongs, at least one judgment parameter corresponding to the power range to which the real-time battery power belongs is queried. The query method includes but is not limited to: depth-first traversal algorithm or breadth-first traversal algorithm, etc., which is not limited in the embodiment of the present invention. And the judgment conditions corresponding to each judgment parameter are queried according to the power range to which the actual battery power belongs. Even if the judgment parameters corresponding to different power ranges are the same, the judgment conditions corresponding to the same judgment parameters corresponding to different power ranges are different.

[0055] S204 . Detect the extended-range hybrid vehicle for each judgment parameter to obtain a judgment parameter value corresponding to the judgment parameter.

[0056] The judgment parameter value may be a value corresponding to the judgment parameter detected for the extended-range hybrid vehicle.

[0057] Specifically, different power ranges correspond to at least one judgment parameter. For each judgment parameter, the extended-range hybrid vehicle is tested to obtain a judgment parameter value corresponding to the judgment parameter monitored in real time. An example judgment parameter value may be power battery power or vehicle speed.

[0058] S205: judging the judgment parameter value corresponding to the judgment parameter according to the judgment condition corresponding to the judgment parameter, and obtaining a judgment result corresponding to the power range to which the real-time battery power belongs.

[0059] The judgment result may be a result obtained by judging the judgment parameter value corresponding to the judgment parameter by the judgment condition corresponding to the judgment parameter.

[0060] Specifically, the power range to which the real-time battery power belongs corresponds to at least one judgment parameter, the number of judgment conditions corresponding to the power range to which the real-time battery power belongs is the same as the judgment parameters, and the judgment conditions correspond to the judgment parameters one by one. The judgment parameter value corresponding to the judgment parameter is judged according to the judgment condition corresponding to the judgment parameter to obtain the judgment result corresponding to the power range to which the real-time battery power belongs.

[0061] S206: Determine a target power generation power corresponding to the power range to which the real-time battery power belongs according to a judgment result corresponding to the power range to which the real-time battery power belongs.

[0062] Specifically, the judgment parameter value corresponding to the judgment parameter is judged according to the judgment condition corresponding to the judgment parameter, and the judgment result corresponding to the power range to which the real-time battery power belongs is obtained, and different judgment results correspond to different target power generation. The judgment result and the calculation method of the target power generation correspond one to one, and according to the judgment result corresponding to the power range to which the real-time battery power belongs, the target power generation corresponding to the power range to which the real-time battery power belongs is determined.

[0063] S207. According to the target power generation power and the power range to which the real-time battery power belongs, the range extender is operated, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs.

[0064] The embodiment of the present invention queries at least one judgment parameter corresponding to the power range to which the real-time battery power belongs and the judgment conditions corresponding to each judgment parameter according to the power range to which the real-time battery power belongs; detects the extended-range hybrid vehicle for each judgment parameter to obtain the judgment parameter value corresponding to the judgment parameter; judges the judgment parameter value corresponding to the judgment parameter according to the judgment condition corresponding to the judgment parameter to obtain the judgment result corresponding to the power range to which the real-time battery power belongs; determines the target power generation power corresponding to the power range to which the real-time battery power belongs according to the judgment result corresponding to the power range to which the real-time battery power belongs, performs different operations according to different judgment results, refines the range extender control operation, and improves the accuracy of the range extender control.

[0065] Optionally, based on the judgment result corresponding to the power range to which the real-time battery power belongs, determine the target power generation power corresponding to the power range to which the real-time battery power belongs, including: based on the judgment result corresponding to the power range to which the real-time battery power belongs, query the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs; identify the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs, and obtain at least one formula parameter; obtain formula parameter values ​​corresponding to each formula parameter; calculate the target power generation power corresponding to the extended-range hybrid vehicle according to the formula parameter values ​​corresponding to each formula parameter and the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs.

[0066] The power calculation formula may be a calculation formula for calculating the target power generation of the hybrid vehicle range extender. The formula parameter may be an indicator to be obtained in the power calculation formula. The formula parameter value may be an obtained value corresponding to the formula parameter.

[0067] Specifically, according to the judgment result corresponding to the power range to which the real-time battery power belongs, query the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs. For example, the power range can be [0,20], (20,40], (40,60] and (60,100]. When the power range is [0,20], the judgment result corresponding to the power range to which the real-time battery power belongs is that it is within the power range, and the power calculation formula corresponding to [0,20] is: target power generation power = rated power; when the power range is (20,40], the judgment result corresponding to the power range to which the real-time battery power belongs is that it is within the power range, and the power calculation formula corresponding to (20,40] is: target power generation power = vehicle demand power × first judgment result + economic power × second judgment result, wherein the values ​​of the first judgment result and the second judgment result are 0 or 1, and the values ​​of the first judgment result and the second judgment result are obtained by judging at least one judgment condition; the power range is ( 40, 60], the judgment result corresponding to the power range to which the real-time battery power belongs is that it is in the power range, and the power calculation formula corresponding to (40, 60] is: target power generation power = economic power; when the power range is (60, 100], the judgment result corresponding to the power range to which the real-time battery power belongs is that it is in the power range, and the power calculation formula corresponding to (60, 100] is: target power generation power = 0; the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs is identified to obtain at least one formula parameter; the formula parameter value corresponding to each formula parameter is obtained; according to the formula parameter value corresponding to each formula parameter and the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs, the target power generation power corresponding to the extended-range hybrid vehicle is calculated.

[0068] By querying the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs according to the judgment result corresponding to the power range to which the real-time battery power belongs; identifying the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs, and obtaining at least one formula parameter; obtaining formula parameter values ​​corresponding to each formula parameter; calculating the target power generation power corresponding to the extended-range hybrid vehicle according to the formula parameter values ​​corresponding to each formula parameter and the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs, performing different operations on different judgment results, and obtaining the target power generation power corresponding to different power ranges, thereby refining the range extender control method and improving the accuracy of the range extender control.

[0069] Optionally, based on the power range to which the real-time battery power belongs, at least one judgment parameter corresponding to the power range to which the real-time battery power belongs is queried, including: if the power range to which the real-time battery power belongs is the power range corresponding to the rated power generation mode or the economic power generation mode, then the judgment parameter corresponding to the power range to which the real-time battery power belongs is the battery power; if the power range to which the real-time battery power belongs is the power range corresponding to the demand power generation mode, then the judgment parameter corresponding to the power range to which the real-time battery power belongs is the vehicle speed, the lower limit value of economic power and the minimum value between the lower limit value of economic power and the rated power.

[0070] Among them, the rated power generation mode may be a mode in which the hybrid vehicle range extender generates power at a preset rated power. The economic power generation mode may be a mode in which the hybrid vehicle range extender generates power at a preset economic power. The demand power generation mode may be a mode in which the hybrid vehicle range extender adjusts its corresponding target power generation according to the power of the drive motor. The economic power lower limit value may be the preset economic power value corresponding to the hybrid vehicle range extender minus the power loss of the power battery charging and discharging.

[0071] Specifically, the rated power generation mode and the economic power generation mode have their corresponding power ranges. The rated power generation mode corresponds to the power range [0, 20], and the economic power generation mode corresponds to the power range (20, 40]. If the power range to which the real-time battery power belongs is the power range corresponding to the rated power generation mode, the real-time battery power of the extended-range hybrid vehicle is obtained and compared with the preset battery power threshold, the preset battery power threshold may be 40, and the target power generation power corresponding to the hybrid vehicle range extender is determined; if the power range to which the real-time battery power belongs is the power range corresponding to the economic power generation mode, the real-time battery power of the extended-range hybrid vehicle is obtained and compared with the preset battery power threshold, the preset battery power threshold may be 60, and the target power generation power corresponding to the hybrid vehicle range extender is determined; if the power range to which the real-time battery power belongs is the power range corresponding to the demand power generation mode, the vehicle speed is obtained according to the vehicle speed of the extended-range hybrid vehicle, and the vehicle speed is compared with the preset vehicle speed threshold, the preset vehicle speed threshold is 80 kilometers per hour, and The whole vehicle power requirement of the extended-range hybrid vehicle is obtained, and the whole vehicle power requirement is compared to see whether it is greater than the lower limit of economic power and less than the minimum value between the lower limit of economic power and the rated power and whether the vehicle speed is greater than 80 kilometers per hour. If both judgment conditions are met, the target power generation corresponding to the hybrid vehicle range extender is the whole vehicle power requirement; if either of the two judgment conditions is not met, the vehicle speed of the extended-range hybrid vehicle is obtained, and the vehicle speed is compared with the preset vehicle speed threshold, which is 60 kilometers per hour. The whole vehicle power requirement of the extended-range hybrid vehicle is obtained, and the whole vehicle power requirement is compared to see whether it is less than or equal to the lower limit of economic power and the vehicle speed is less than 60 kilometers per hour. If both judgment conditions are met, the target power generation corresponding to the hybrid vehicle range extender is the whole vehicle economic power. At the same time, when the vehicle speed is greater than 80 kilometers per hour, the vehicle will have tire noise. When the range extender changes the target power generation, the tire noise will cover the sound of the range extender and improve the driving experience.

[0072] If the power range to which the real-time battery power belongs is the power range corresponding to the rated power generation mode or the economic power generation mode, the judgment parameter corresponding to the power range to which the real-time battery power belongs is the battery power; if the power range to which the real-time battery power belongs is the power range corresponding to the demand power generation mode, the judgment parameter corresponding to the power range to which the real-time battery power belongs is the vehicle speed, the economic power lower limit and the minimum value between the economic power lower limit and the rated power. By real-time monitoring of various operating indicators of the vehicle, the power supplied by the range extender to the drive motor, whether to charge the power battery, and whether the power battery discharges the drive motor can be controlled within the preset power range, thereby reducing the number of times the power battery is charged and discharged, and reducing power loss.

[0073] Optionally, determining the power range to which the real-time battery power belongs based on the real-time battery power includes: obtaining at least one power threshold; calculating at least one initial power range based on each power threshold; and comparing the real-time battery power with each initial power range to obtain the power range to which the real-time battery power belongs.

[0074] The power threshold may be a preset power battery remaining power threshold, and the initial power range may be a power range calculated based on at least one power threshold.

[0075] Specifically, at least one power threshold is obtained, for example, the power thresholds are 20, 40 and 60. The initial power ranges are calculated based on the power thresholds as [0, 20], (20, 40], (40, 60] and (60, 100]. The real-time battery power is obtained, and the real-time battery power is compared with each initial power range to obtain the power range to which the real-time battery power belongs.

[0076] By obtaining at least one power threshold; calculating at least one initial power range based on each power threshold; comparing the real-time battery power with each initial power range to obtain the power range to which the real-time battery power belongs, the power range is refined and the accuracy of the range extender operation is improved.

[0077] Optionally, the range extender is operated according to the target power generation power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs, including: operating the range extender according to the target power generation power, comparing the power of the drive motor with the target power generation power, and obtaining a power comparison result; querying the range extender operation mode corresponding to the power comparison result according to the power comparison result; obtaining a preset power range set, the preset power range set including three preset power ranges; comparing the power range to which the real-time battery power belongs with each preset power range in the preset power range set to obtain a power comparison result; querying the battery charging mode corresponding to the power comparison result according to the power comparison result; and operating the hybrid vehicle range extender according to the range extender operation mode and the battery charging mode.

[0078] The power comparison result may be a result of comparing the power of the drive motor with the target power generation power. The range extender operation mode may be a power supply mode of the range extender. The preset power range set may be a set of power ranges preset according to demand. The preset power range may be a preset range of remaining power of the power battery. The power comparison result may be a result of comparing the power range to which the real-time battery power belongs with each preset power range in the preset power range set.

[0079] Specifically, according to the target power generation, the range extender is operated, the power of the drive motor is compared with the target power generation, and a power comparison result is obtained; according to the power comparison result, the operation mode of the range extender corresponding to the power comparison result is queried; according to the power range to which the real-time battery power belongs and each preset power range in the preset power range set are compared to obtain the power comparison result; according to the power comparison result, the battery charging mode corresponding to the power comparison result is queried; according to the range extender operation mode and the battery charging mode, the power supply mode corresponding to the hybrid vehicle range extender is obtained, and it is determined whether the hybrid vehicle range extender supplies power to the drive motor and whether it supplies power to the power battery, and at the same time, the target power generation of the hybrid vehicle range extender is determined.

[0080] By operating the range extender according to the target power generation, the power of the drive motor is compared with the target power generation to obtain a power comparison result; according to the power comparison result, the range extender operation mode corresponding to the power comparison result is queried; a preset power range set is obtained, and the preset power range set includes three preset power ranges; the power range to which the real-time battery power belongs is compared with each preset power range in the preset power range set to obtain a power comparison result; according to the power comparison result, the battery charging mode corresponding to the power comparison result is queried; the hybrid vehicle range extender is operated according to the range extender operation mode and the battery charging mode, so as to determine whether it is powered by the power battery, and the electric energy generated by the hybrid vehicle range extender can be directly used to power the drive motor, thereby reducing the electric energy lost due to charging and discharging in the process where the power battery powers the drive motor after the range extender powers the power battery.

[0081] Optionally, based on the power comparison result, the operating mode of the range extender corresponding to the power comparison result is queried, including: if the power comparison result is that the target generated power is greater than the power of the drive motor, the economic power corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the economic power; if the power comparison result is that the target generated power is less than or equal to the power of the drive motor, the whole vehicle demand power corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the whole vehicle demand power.

[0082] Among them, economic power can be the power provided by the engine in the efficient working range. Economic power is less than rated power. Vehicle demand power is the sum of the power required by the vehicle under specific working conditions, including engine power, motor power and battery power. This indicator comprehensively considers the power demand of the vehicle under different driving conditions to ensure that the vehicle can provide sufficient power support.

[0083] Specifically, the calculation of the required power of a hybrid vehicle involves the following aspects: Engine power: the power provided by a traditional gasoline or diesel engine. Motor power: the power provided by an electric motor. Battery power: the power displayed by a battery pack when providing electrical energy, especially when the motor is working. The combined use of these powers enables hybrid vehicles to provide optimal power performance under different driving conditions. For example, when starting and accelerating, the motor and battery can provide instantaneous high torque, while when driving at high speeds, the engine provides continuous high power output. If the power comparison result is that the target power generation is greater than the power of the drive motor, the economic power corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the economic power; if the power comparison result is that the target power generation is less than or equal to the power of the drive motor, the vehicle required power corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the vehicle required power.

[0084] If the power comparison result is that the target power generation power is greater than the power of the drive motor, the economic power corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the economic power; if the power comparison result is that the target power generation power is less than or equal to the power of the drive motor, the whole vehicle demand power corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the whole vehicle demand power. According to the vehicle's demand power, the target power generation power corresponding to the hybrid vehicle range extender can be controlled so that under preset conditions, the power battery is not supplied with power, and the drive motor is directly supplied with power, thereby reducing the number of charge and discharge times of the power battery and reducing power loss.

[0085] Embodiment 3

[0086] Figure 3 This is a schematic diagram of the structure of a range extender control device provided in Embodiment 3 of the present invention. The embodiment of the present invention is applicable to the case of range extender control, the device can execute the range extender control method, and the device can be implemented in the form of hardware and / or software.

[0087] See also Figure 3 The range extender control device shown includes: a power acquisition module 301, a range determination module 302, a power acquisition module 303 and a data judgment module 304, wherein:

[0088] The power acquisition module 301 is used to acquire the real-time battery power of the power battery corresponding to the extended-range hybrid vehicle, where the extended-range hybrid vehicle is equipped with a power battery and a hybrid vehicle range extender;

[0089] A range determination module 302, configured to determine a power range to which the real-time battery power belongs according to the real-time battery power;

[0090] The power acquisition module 303 is used to acquire the target power generation power corresponding to the power range to which the real-time battery power belongs;

[0091] The data judgment module 304 is used to operate the range extender according to the target power generation power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs.

[0092] The technical solution of the embodiment of the present invention obtains the real-time battery power of the power battery corresponding to the extended-range hybrid vehicle, and the extended-range hybrid vehicle is equipped with a power battery and a hybrid vehicle range extender; determines the power range to which the real-time battery power belongs according to the real-time battery power; obtains the target power generation power corresponding to the power range to which the real-time battery power belongs; operates the range extender according to the target power generation power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs, thereby reducing the number of battery charging and discharging times, reducing power loss, and saving power.

[0093] Optionally, the power acquisition module 303 includes:

[0094] A condition query unit, used to query at least one judgment parameter corresponding to the power range to which the real-time battery power belongs and a judgment condition corresponding to each judgment parameter according to the power range to which the real-time battery power belongs;

[0095] A data detection unit, used for detecting the extended-range hybrid vehicle with respect to each judgment parameter, and obtaining a judgment parameter value corresponding to the judgment parameter;

[0096] A judgment result obtaining unit, used to judge the judgment parameter value corresponding to the judgment parameter according to the judgment condition corresponding to the judgment parameter, and obtain a judgment result corresponding to the power range to which the real-time battery power belongs;

[0097] The target power determination unit is used to determine the target power generation power corresponding to the power range to which the real-time battery power belongs according to the judgment result corresponding to the power range to which the real-time battery power belongs.

[0098] Optionally, the target power determination unit is specifically configured to:

[0099] According to the judgment result corresponding to the power range to which the real-time battery power belongs, query the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs;

[0100] Identify a power calculation formula corresponding to a judgment result corresponding to a power range to which the real-time battery power belongs, and obtain at least one formula parameter;

[0101] Get the formula parameter value corresponding to each formula parameter;

[0102] The target power generation power corresponding to the extended-range hybrid vehicle is calculated based on the power calculation formula corresponding to the formula parameter values ​​corresponding to the formula parameters and the judgment result corresponding to the power range to which the real-time battery power belongs.

[0103] Optional, conditional query unit, specifically used for:

[0104] If the power range to which the real-time battery power belongs is the power range corresponding to the rated power generation mode or the economic power generation mode, then the judgment parameter corresponding to the power range to which the real-time battery power belongs is the battery power;

[0105] If the power range to which the real-time battery power belongs is the power range corresponding to the demand power generation mode, then the judgment parameters corresponding to the power range to which the real-time battery power belongs are the vehicle speed, the lower limit of economic power, and the minimum value between the lower limit of economic power and the rated power.

[0106] Optionally, the range determination module 302 is specifically configured to:

[0107] Obtain at least one power threshold;

[0108] At least one initial power range is obtained by calculating according to each power threshold;

[0109] The real-time battery power level is compared with each initial power level range to obtain the power level range to which the real-time battery power level belongs.

[0110] Optionally, the data determination module 304 includes:

[0111] A power result acquisition unit is used to operate the range extender according to the target power generation, compare the power of the drive motor with the target power generation, and obtain a power comparison result;

[0112] A power mode query unit, used to query the range extender operation mode corresponding to the power comparison result according to the power comparison result;

[0113] A set acquisition unit, used to acquire a preset power range set, wherein the preset power range set includes three preset power ranges;

[0114] A power result acquisition unit, used to compare the power range to which the real-time battery power belongs with each preset power range in the preset power range set to obtain a power comparison result;

[0115] A charging mode query unit, used to query the battery charging mode corresponding to the power comparison result according to the power comparison result;

[0116] The range extender operation unit is used to operate the hybrid vehicle range extender according to the range extender operation mode and the battery charging mode.

[0117] Optional, power mode query unit, including:

[0118] If the power comparison result is that the target power generation is greater than the power of the drive motor, the economic power corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the economic power;

[0119] If the power comparison result is that the target generated power is less than or equal to the power of the drive motor, the required power of the entire vehicle corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the required power of the entire vehicle.

[0120] The range extender control device provided in the embodiment of the present invention can execute the range extender control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the range extender control method.

[0121] Embodiment 4

[0122] Figure 4 A schematic structural diagram of a range extender control device 400 that can be used to implement an embodiment of the present invention is shown.

[0123] like Figure 4 As shown, the range extender control device 400 includes at least one processor 401, and a memory connected to the at least one processor 401 in communication, such as a read-only memory (ROM) 402, a random access memory (RAM) 403, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 401 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 402 or the computer program loaded from the storage unit 408 to the random access memory (RAM) 403. In RAM403, various programs and data required for the operation of the range extender control device 400 can also be stored. The processor 401, ROM402 and RAM403 are connected to each other via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0124] Multiple components in the range extender control device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, a mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, an optical disk, etc.; and a communication unit 409, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 409 allows the range extender control device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0125] Processor 401 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of processor 401 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. Processor 501 executes the various methods and processes described above, such as the range extender control method.

[0126] In some embodiments, the range extender control method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 408. In some embodiments, part or all of the computer program may be loaded and / or installed on the range extender control device 400 via the ROM 402 and / or the communication unit 409. When the computer program is loaded into the RAM 403 and executed by the processor 401, one or more steps of the range extender control method described above may be performed. Alternatively, in other embodiments, the processor 401 may be configured to execute the range extender control method in any other appropriate manner (e.g., by means of firmware).

[0127] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0128] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0129] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0130] To provide interaction with a user, the systems and techniques described herein may be implemented on a range extender control device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) through which a user can provide input to the range extender control device. Other types of devices may also be used to provide interaction with a user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0131] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0132] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS (Virtual Private Server) services.

[0133] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0134] 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 range extender control method, characterized in that: The method comprises: Acquiring a real-time battery power level of a power battery corresponding to a range-extended hybrid vehicle, wherein the range-extended hybrid vehicle is equipped with the power battery and a hybrid vehicle range extender; According to the real-time battery power, determining the power range to which the real-time battery power belongs; Obtaining a target power generation power corresponding to the power range to which the real-time battery power belongs; The range extender is operated according to the target generated power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target generated power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs.

2. The method according to claim 1, characterized in that: The obtaining of the target power generation power corresponding to the power range to which the real-time battery power belongs includes: According to the power range to which the real-time battery power belongs, query at least one judgment parameter corresponding to the power range to which the real-time battery power belongs and a judgment condition corresponding to each of the judgment parameters; For each of the judgment parameters, the extended-range hybrid vehicle is tested to obtain a judgment parameter value corresponding to the judgment parameter; Judging the judgment parameter value corresponding to the judgment parameter according to the judgment condition corresponding to the judgment parameter, and obtaining a judgment result corresponding to the power range to which the real-time battery power belongs; According to the judgment result corresponding to the power range to which the real-time battery power belongs, the target power generation power corresponding to the power range to which the real-time battery power belongs is determined.

3. The method according to claim 2, characterized in that The determining, according to the judgment result corresponding to the power range to which the real-time battery power belongs, the target power generation power corresponding to the power range to which the real-time battery power belongs, comprises: According to the judgment result corresponding to the power range to which the real-time battery power belongs, querying the power calculation formula corresponding to the judgment result corresponding to the power range to which the real-time battery power belongs; Identify a power calculation formula corresponding to a judgment result corresponding to a power range to which the real-time battery power belongs, and obtain at least one formula parameter; Obtaining formula parameter values ​​corresponding to each of the formula parameters; The target power generation power corresponding to the extended-range hybrid vehicle is calculated based on the power calculation formula corresponding to the formula parameter values ​​corresponding to the formula parameters and the judgment result corresponding to the power range to which the real-time battery power belongs.

4. The method according to claim 2, characterized in that: The querying, according to the power range to which the real-time battery power belongs, at least one judgment parameter corresponding to the power range to which the real-time battery power belongs includes: If the power range to which the real-time battery power belongs is the power range corresponding to the rated power generation mode or the economic power generation mode, then the judgment parameter corresponding to the power range to which the real-time battery power belongs is the battery power; If the power range to which the real-time battery power belongs is the power range corresponding to the demand power generation mode, then the judgment parameters corresponding to the power range to which the real-time battery power belongs are the vehicle speed, the lower limit of economic power, and the minimum value between the lower limit of economic power and the rated power.

5. The method according to claim 1, characterized in that The determining, according to the real-time battery power, a power range to which the real-time battery power belongs includes: Obtain at least one power threshold; Calculate at least one initial power range according to each of the power thresholds; The real-time battery power level is compared with each of the initial power level ranges to obtain the power level range to which the real-time battery power level belongs.

6. The method according to claim 1, characterized in that The operating the range extender according to the target power generation power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs, including: According to the target power generation, the range extender is operated, and the power of the drive motor is compared with the target power generation to obtain a power comparison result; According to the power comparison result, querying the range extender operation mode corresponding to the power comparison result; Acquire a preset power range set, wherein the preset power range set includes three preset power ranges; Obtaining a power comparison result by comparing the power range to which the real-time battery power belongs with each of the preset power ranges in the preset power range set; According to the power comparison result, query the battery charging mode corresponding to the power comparison result; The hybrid vehicle range extender is operated according to the range extender operation mode and the battery charging mode.

7. The method according to claim 6, characterized in that The querying, according to the power comparison result, the range extender operation mode corresponding to the power comparison result includes: If the power comparison result is that the target generated power is greater than the power of the drive motor, the economic power corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the economic power; If the power comparison result is that the target generated power is less than or equal to the power of the drive motor, the whole vehicle required power corresponding to the extended-range hybrid vehicle is obtained, and the hybrid vehicle range extender supplies power to the drive motor according to the whole vehicle required power.

8. A range extender control device, characterized in that: The device comprises: A power acquisition module, used to acquire the real-time battery power of a power battery corresponding to a range-extended hybrid vehicle, wherein the power battery and a hybrid vehicle range extender are installed on the range-extended hybrid vehicle; A range determination module, used to determine the power range to which the real-time battery power belongs according to the real-time battery power; A power acquisition module, used to acquire a target power generation power corresponding to the power range to which the real-time battery power belongs; A data judgment module is used to operate the range extender according to the target power generation power and the power range to which the real-time battery power belongs, so that the range extender determines whether to supply power to the drive motor according to the difference between the power of the drive motor and the target power generation power, and determines whether to charge the power battery according to the power range to which the real-time battery power belongs.

9. A range extender control device, characterized in that: The range extender control device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the range extender control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the range extender control method according to any one of claims 1 to 7 when executed.

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