WO2022111496A1 - 剩余里程的确定方法、装置、设备及车辆 - Google Patents

剩余里程的确定方法、装置、设备及车辆 Download PDF

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WO2022111496A1
WO2022111496A1 PCT/CN2021/132635 CN2021132635W WO2022111496A1 WO 2022111496 A1 WO2022111496 A1 WO 2022111496A1 CN 2021132635 W CN2021132635 W CN 2021132635W WO 2022111496 A1 WO2022111496 A1 WO 2022111496A1
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Prior art keywords
power consumption
average power
remaining mileage
mileage
remaining
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PCT/CN2021/132635
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English (en)
French (fr)
Inventor
张天强
赵开成
张强
李想
李畅
姜鹏翰
李晶
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中国第一汽车股份有限公司
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Publication of WO2022111496A1 publication Critical patent/WO2022111496A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/14—Acceleration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/60—Navigation input
    • B60L2240/66—Ambient conditions
    • B60L2240/662—Temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the embodiments of the present application relate to the technical field of vehicles, for example, to a method, device, device, and vehicle for determining remaining mileage.
  • the driving conditions and battery power of pure electric vehicles have a great influence on the calculation of the remaining mileage.
  • the remaining mileage is calculated according to the remaining battery energy value, the energy consumption value per second and the driving speed.
  • the energy consumption value per second of electric vehicles varies greatly, especially when the driving condition changes suddenly, the accuracy of the remaining mileage calculated based on the energy consumption value per second is low, and it may cause a sudden change in the remaining mileage.
  • the present application provides a method, device, device and vehicle for determining the remaining mileage, which can improve the accuracy of determining the remaining mileage of an electric vehicle.
  • This application provides a method for determining the remaining mileage, including:
  • the initial remaining mileage is corrected according to the current vehicle speed and the remaining mileage of the previous working condition to obtain the target remaining mileage.
  • the operating conditions include at least one of the following: normal operating conditions, idle speed operating conditions, low-speed air-conditioning operating conditions, long downhill operating conditions, and charging operating conditions;
  • the first average power consumption is determined according to the current working condition of the vehicle, including:
  • Weighted summation is performed on the first average power consumption of the previous working condition and the current instantaneous power consumption according to the determined weight, so as to obtain the first average power consumption of the current working condition.
  • the navigation information includes the mileage and drivable average speed of each road segment in at least one road segment between the current location and the destination;
  • the second average power consumption is determined according to the navigation information, average acceleration and ambient temperature, including:
  • the second average power consumption is calculated according to the sub-average power consumption of each road section and the mileage of each road section.
  • determining a target average power consumption for the first average power consumption and the second average power consumption includes:
  • the first average power consumption and the second average power consumption are weighted and summed according to the weight to obtain a target average power consumption.
  • obtaining the remaining power of the battery includes:
  • the initial remaining mileage is corrected according to the current vehicle speed and the remaining mileage of the previous working condition to obtain the target remaining mileage, including:
  • the initial remaining mileage is determined as the target remaining mileage.
  • the method further includes:
  • the target remaining mileage is displayed on the dial.
  • the present application also provides a device for determining remaining mileage, including:
  • a first average power consumption determining module configured to determine the first average power consumption according to the current working condition of the vehicle
  • the second average power consumption determining module is configured to determine the second average power consumption according to the navigation information, the average acceleration and the ambient temperature;
  • a target average power consumption determining module configured to perform weighted summation on the first average power consumption and the second average power consumption to obtain a target average power consumption
  • an initial remaining mileage determination module configured to obtain the remaining battery power, and determine the initial remaining mileage according to the remaining battery power and the target average power
  • the target remaining mileage acquisition module is configured to correct the initial remaining mileage according to the current vehicle speed and the remaining mileage of the previous working condition, and obtain the target remaining mileage.
  • the present application also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the method for determining the remaining range as described above when the processor executes the program.
  • the present application also provides a vehicle, including a device for determining a remaining mileage, and the device for determining a remaining mileage is configured to implement the method for determining the remaining mileage as described above.
  • Embodiment 1 is a flowchart of a method for determining a remaining mileage provided by Embodiment 1 of the present application;
  • FIG. 2 is a schematic structural diagram of a device for determining a remaining mileage according to Embodiment 2 of the present application;
  • FIG. 3 is a schematic structural diagram of a computer device according to Embodiment 3 of the present application.
  • FIG. 4 is a schematic structural diagram of a vehicle according to Embodiment 4 of the present application.
  • Fig. 1 is a flowchart of a method for determining the remaining mileage provided by the first embodiment of the application. This embodiment can be applied to the situation of determining the remaining mileage of an electric vehicle, and the method can be executed by a device for determining the remaining mileage, as shown in Fig. 1, the method includes the following steps:
  • Step 110 Determine the first average power consumption according to the current operating condition of the vehicle.
  • the working conditions include at least one of the following: a normal working condition, an idle speed working condition, a low-speed air conditioning working condition, a long downhill working condition, and a charging working condition.
  • the working condition of the vehicle can be determined by vehicle information such as driving speed, air conditioning status, slope and direction, and battery charge and discharge status.
  • the method of determining the first average power consumption according to the current working condition of the vehicle may be: determining the current instantaneous power consumption according to the battery parameters and the current vehicle speed; obtaining the first average power consumption of the previous working condition; determining the last average power consumption according to the current working condition.
  • the weight of the first average power consumption of the working condition and the weight of the current instantaneous power consumption; according to the determined weight, the first average power consumption of the previous working condition and the current instantaneous power consumption are weighted and summed to obtain the first average power consumption of the current working condition. Average power consumption.
  • the battery parameters may include battery discharge voltage and battery discharge current.
  • the vehicle is in different working conditions, and the weights of the first average power consumption of the previous working condition and the current instantaneous power consumption are different.
  • T(t) represents the weight of the current instantaneous power consumption.
  • T(t) decreases with the increase of vehicle speed, and its corresponding relationship is V(t)[3 10 30 60 90 120 180]->T(t)[1/720000 1/360000 1 /120000 1/60000 1/42000 1/30000 1/20000], where the unit of V(t) is Km/h.
  • the value of T(t) is 0.
  • the method of determining the first average power consumption according to the current working condition of the vehicle may also be: determining the current instantaneous power consumption according to the battery parameters and the current vehicle speed; obtaining the average power consumption within 10 ms before the current working condition; The current working condition determines the weight of the average power consumption and the weight of the current instantaneous power consumption; the weighted summation of the average power consumption and the current instantaneous power consumption is performed according to the determined weight to obtain the first average power consumption of the current working condition.
  • Step 120 Determine the second average power consumption according to the navigation information, the average acceleration and the ambient temperature.
  • the navigation information includes the mileage and drivable average speed of each road segment in at least one road segment between the current location and the destination.
  • the navigation information can obtain the congestion situation of the road section ahead, so as to determine the mileage and average speed of each road section according to the congestion situation.
  • Table 1 is an example of each road segment information in this embodiment.
  • the average acceleration can characterize the driver's driving habits, sample the acceleration in a historical period of time, and obtain the average value of the sampled acceleration.
  • the method of determining the second average power consumption according to the navigation information, the average acceleration and the ambient temperature may be: determining the sub-average power consumption of each road section according to the average speed, average acceleration and ambient temperature of each road section; The sub-average power consumption of the road section and the mileage of each road section calculate the second average power consumption.
  • the main influencing factors of power consumption are temperature, vehicle speed, acceleration, etc.
  • an average power consumption database with different temperatures, different average vehicle speeds, and different average accelerations is established.
  • the temperature is divided into four intervals, below A, A to B, B to C, and above C;
  • the average vehicle speed is divided into 10 intervals, and the average acceleration is divided into four intervals, as shown in Table 2 below, and the values are related to the vehicle.
  • the sub-average power consumption of each road section can be obtained by looking up the table. Then, the total power consumption is calculated according to the sub-average power consumption of each road section and the mileage of each road section, and the second average power consumption is obtained by dividing the total power consumption by the total mileage from the current position to the destination.
  • P(t) navigation (P1*S1+P2*S2+...+Pn*Sn)/(S1+S2+...+Sn)
  • P(t) navigation is the second average power consumption
  • P1, P2... Pn is the sub-average power consumption of each section in the navigation path
  • S1, S2...Sn are the mileage of each section in the navigation path.
  • Step 130 Perform weighted summation on the first average power consumption and the second average power consumption to obtain the target average power consumption.
  • step 140 the remaining battery power is obtained, and the initial remaining mileage is determined according to the remaining battery power and the target average power.
  • the method of obtaining the remaining battery power may be: calculating the remaining battery power according to the battery capacity, the remaining battery energy ratio, the battery temperature coefficient and the battery attenuation coefficient.
  • Step 150 Correct the initial remaining mileage according to the current vehicle speed and the remaining mileage of the previous working condition to obtain the target remaining mileage.
  • the initial remaining mileage is corrected according to the current vehicle speed and the remaining mileage of the previous working condition, and the way to obtain the target remaining mileage can be: determine the speed range in which the current vehicle speed is located; determine the mileage change threshold according to the range; If the change value of the remaining mileage of a working condition is greater than the mileage change threshold, the target remaining mileage is determined according to the mileage change threshold and the remaining mileage of the previous working condition; if the change value of the initial remaining mileage relative to the remaining mileage of the previous working condition is not greater than The mileage change threshold, which determines the initial remaining mileage as the target remaining mileage.
  • the speed range is divided into five modes: ultra-low speed, low speed, medium speed, medium high speed and high speed.
  • the speed range of ultra-low speed mode is 0-10km/h
  • the speed range of low speed mode is 10-30km/h
  • the speed range of medium speed mode is 0-10km/h.
  • the speed range is 30-60km/h
  • the speed range of the medium and high speed mode is 60-90km/h
  • the speed range of the high speed mode is more than 90km/h.
  • the remaining mileage reduction change threshold in ultra-low speed mode is ⁇ 5, where ⁇ 5> ⁇ 4> ⁇ 3> ⁇ 2> ⁇ 1.
  • the remaining mileage increase and change threshold in ultra-low speed mode is ⁇ 1, the low-speed mode remaining mileage increase and change threshold to ⁇ 2, the medium-speed mode remaining mileage increase and change threshold to be ⁇ 3, the medium-high-speed mode remaining mileage increase and change threshold to be ⁇ 4, and the high-speed mode to increase and change the remaining mileage.
  • the threshold is ⁇ 5, where ⁇ 5 ⁇ 4 ⁇ 3 ⁇ 2 ⁇ 1.
  • the efficiency of the vehicle system is different, such as the motor efficiency.
  • the system consumes a lot of power, and the high current discharge is easy to cause the battery energy to drop sharply.
  • the remaining mileage will increase only from high energy consumption conditions to low energy consumption conditions. Generally, the remaining mileage will increase from high vehicle speed to low vehicle speed. Therefore, it is necessary to consider different speed ranges and set different gradient limits to increase the remaining mileage. Accuracy of mileage calculations.
  • the remaining mileage value is S(t); if S(t)>S(t-1), and the change value is greater than Threshold, the remaining mileage is S(t-1)- ⁇ , where ⁇ is the change threshold corresponding to the increase of remaining mileage.
  • the following step is further included: displaying the target remaining mileage on the dial.
  • the remaining mileage is determined according to the solution of the related art at the beginning of the driving process of the vehicle, that is, the remaining mileage is not determined in combination with the navigation information. From a moment, the navigation information intervenes, and the target remaining mileage is obtained in combination with the navigation information. Compare the calculated target remaining mileage with the displayed remaining mileage at the time of navigation intervention, and calculate the difference between the target remaining mileage and the displayed remaining mileage. If the difference is greater than the vehicle threshold, the displayed remaining mileage will be replaced with the target remaining mileage ( That is, the display will jump); if the difference is not greater than the vehicle threshold, keep the remaining mileage of the display unchanged.
  • the vehicle threshold is determined by the percentage of remaining battery energy.
  • Table 3 shows the corresponding relationship between the remaining battery energy ratio (State of Charge (SOC)) and the vehicle threshold.
  • SOC value vehicle threshold >80 50 60 ⁇ 80 30 40 ⁇ 60 20 20 ⁇ 40 10 ⁇ 20 5
  • the first average power consumption is determined according to the current working condition of the vehicle; the second average power consumption is determined according to the navigation information, the average acceleration and the ambient temperature; the first average power consumption and the second average power consumption are determined according to the Perform weighted summation to obtain the target average power consumption; obtain the remaining battery power, and determine the initial remaining mileage according to the remaining battery power and the target average power; modify the initial remaining mileage according to the current vehicle speed and the remaining mileage of the previous working condition to obtain the target remaining mileage mileage.
  • the method for determining the remaining mileage provided by the embodiments of the present application determines the remaining mileage based on navigation information and historical average power consumption, which can improve the accuracy of determining the remaining mileage.
  • FIG. 2 is a schematic structural diagram of an apparatus for determining a remaining mileage according to Embodiment 2 of the present application. As shown in Figure 2, the device includes:
  • the first average power consumption determination module 210 is configured to determine the first average power consumption according to the current operating condition of the vehicle; the second average power consumption determination module 220 is configured to determine the second average power consumption according to the navigation information, the average acceleration and the ambient temperature. power consumption; the target average power consumption determination module 230 is configured to perform a weighted summation of the first average power consumption and the second average power consumption to obtain the target average power consumption; the initial remaining mileage determination module 240 is configured to obtain the remaining battery power, and The initial remaining mileage is determined according to the remaining battery power and the target average power; the target remaining mileage obtaining module 250 is configured to correct the initial remaining mileage according to the current vehicle speed and the remaining mileage of the previous working condition to obtain the target remaining mileage.
  • the optional working conditions include at least one of the following: a normal working condition, an idling speed working condition, a low-speed air conditioner working condition, a long downhill working condition, and a charging working condition; the first average power consumption determination module 210 is set to:
  • the navigation information includes the mileage and drivable average speed of each road segment in at least one road segment between the current position and the destination; the second average power consumption determination module 220 is set to:
  • the sub-average power consumption of each road section is determined according to the average speed, average acceleration and ambient temperature of each road section; the second average power consumption is calculated according to the sub-average power consumption of each road section and the mileage of each road section.
  • the target average power consumption determining module 230 is set to:
  • the weight of the first average power consumption and the weight of the second average power consumption are determined according to the distance between the current location and the destination; the weighted summation of the first average power consumption and the second average power consumption is performed according to the weight to obtain the target average power consumption .
  • the initial remaining range determination module 240 is configured to obtain the remaining battery power in the following manner:
  • the target remaining mileage obtaining module 250 is further set to:
  • a display module set to:
  • the foregoing apparatus can execute the methods provided by all the foregoing embodiments of the present application, and has corresponding functional modules and effects for executing the foregoing methods.
  • the foregoing apparatus can execute the methods provided by all the foregoing embodiments of the present application, and has corresponding functional modules and effects for executing the foregoing methods.
  • FIG. 3 is a schematic structural diagram of a computer device according to Embodiment 3 of the present application.
  • Figure 3 shows a block diagram of a computer device 312 suitable for use in implementing embodiments of the present application.
  • the computer device 312 shown in FIG. 3 is only an example, and should not impose any limitations on the functions and scope of use of the embodiments of the present application.
  • Device 312 is a computing device for the determination of remaining range.
  • computer device 312 takes the form of a general-purpose computing device.
  • Components of computer device 312 may include, but are not limited to, one or more processors 316, memory 328, and bus 318 that connects various system components, including memory 328 and processor 316.
  • the bus 318 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures.
  • these architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, enhanced ISA bus, Video Electronics Standards Association (Video Electronics Standards Association) Association, VESA) local bus and Peripheral Component Interconnect (PCI) bus.
  • Computer device 312 includes a variety of computer system readable media. These media can be any available media that can be accessed by computer device 312, including both volatile and nonvolatile media, removable and non-removable media.
  • Memory 328 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 330 and/or cache memory 332 .
  • Computer device 312 may include other removable/non-removable, volatile/non-volatile computer system storage media.
  • storage system 334 may be configured to read and write to non-removable, non-volatile magnetic media (not shown in FIG. 3, commonly referred to as a "hard drive”).
  • a magnetic disk drive may be provided that is configured to read and write to removable non-volatile magnetic disks (eg "floppy disks"), as well as to removable non-volatile optical disks (eg Compact Disc-Read only).
  • the memory 328 may include at least one program product having a set (eg, at least one) of program modules configured to perform the functions of the embodiments of the present application.
  • a program 336 having a set (at least one) of program modules 326, which may be stored, for example, in memory 328, such program modules 326 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, examples of which Each or a combination of these may include an implementation of a network environment.
  • Program modules 326 generally perform the functions and/or methods of the embodiments described herein.
  • the computer device 312 may also communicate with one or more external devices 314 (eg, a keyboard, pointing device, camera, display 324, etc.), and may also communicate with one or more devices that enable a user to interact with the computer device 312, and/or Or with any device (eg, network card, modem, etc.) that enables the computer device 312 to communicate with one or more other computing devices. Such communication may take place through an input/output (I/O) interface 322 . Also, the computer device 312 may communicate with one or more networks (eg, a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) through a network adapter 320.
  • networks eg, a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet
  • network adapter 320 communicates with other modules of computer device 312 via bus 318 .
  • other hardware and/or software modules may be used in conjunction with computer device 312, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, Redundant Arrays of Independent Disks , RAID) systems, tape drives, and data backup storage systems.
  • the processor 316 executes various functional applications and data processing by running the programs stored in the memory 328, for example, to implement the method for determining the remaining mileage provided by the above embodiments of the present application.
  • FIG. 4 is a schematic structural diagram of a vehicle according to Embodiment 4 of the present application.
  • the vehicle includes a device for determining the remaining mileage according to the embodiment of the present application.
  • the device includes: a first average power consumption determining module, which sets In order to determine the first average power consumption according to the current working condition of the vehicle; the second average power consumption determination module is set to determine the second average power consumption according to the navigation information, the average acceleration and the ambient temperature; the target average power consumption determination module, set In order to obtain the target average power consumption by weighted summation of the first average power consumption and the second average power consumption; the initial remaining mileage determination module is set to obtain the remaining battery power, and according to the remaining battery power and the said The target average electric quantity determines the initial remaining mileage; the target remaining mileage obtaining module is set to correct the initial remaining mileage according to the current vehicle speed and the remaining mileage of the previous working condition to obtain the target remaining mileage.
  • the fifth embodiment of the present application provides a computer-readable storage medium on which a computer program is stored.
  • the program is executed by a processor, the method for determining the remaining mileage provided by all the application embodiments of the present application is implemented: according to the location of the vehicle. Determine the first average power consumption under current operating conditions; determine the second average power consumption according to navigation information, average acceleration and ambient temperature; perform weighted summation on the first average power consumption and the second average power consumption to obtain the target average power consumption The remaining battery power is obtained, and the initial remaining mileage is determined according to the remaining battery power and the target average power;
  • the computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium.
  • the computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above. Examples (non-exhaustive list) of computer-readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, RAM, ROM, Erasable Programmable Read-Only Memory (Erasable Programmable Read-Only Memory) Memory, EPROM or flash memory), optical fiber, CD-ROM, optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.
  • a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave, with computer-readable program code embodied thereon. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .
  • Program code embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
  • suitable medium including but not limited to wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
  • Computer program code for carrying out the operations of the present application may be written in one or more programming languages, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional A procedural programming language, such as the "C" language or similar programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server.
  • the remote computer may be connected to the user's computer through any kind of network, including a LAN or WAN, or may be connected to an external computer (eg, through the Internet using an Internet service provider).

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Abstract

一种剩余里程的确定方法、装置、设备及车辆。剩余里程的确定方法包括：根据车辆所处的当前工况确定第一平均电耗；根据导航信息、平均加速度及环境温度确定第二平均电耗；对第一平均电耗和第二平均电耗进行加权求和获得目标平均电耗；获取电池剩余电量，并根据电池剩余电量和目标平均电量确定初始剩余里程；根据当前车速和上一工况的剩余里程对初始剩余里程进行修正，获得目标剩余里程，可以提高对电动车剩余里程确定的准确性。

Description

剩余里程的确定方法、装置、设备及车辆
本申请要求在2020年11月25日提交中国专利局、申请号为202011345349.0的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及车辆技术领域，例如涉及一种剩余里程的确定方法、装置、设备及车辆。
背景技术
随着人民生活水平的提高，越来越多的人选择自驾出行，而由汽车尾气造成的环境污染问题也越来越严重，新能源电动汽车以节能、零排放的优势，必将成为汽车行业的发展趋势，而准确显示纯电动汽车的剩余里程对驾驶员来说是至关重要的。
纯电动汽车所处的驾驶工况和电池电量对其剩余里程的计算有很大影响，通常根据电池剩余能量值、每秒能耗值以及行驶速度计算剩余里程，但是不同的驾驶工况，纯电动汽车的每秒能耗值差异较大，尤其是当驾驶工况发生突变时，基于每秒能耗值所计算的剩余里程准确度较低，而且有可能造成剩余里程的突变。
发明内容
本申请提供一种剩余里程的确定方法、装置、设备及车辆，可以提高对电动车剩余里程确定的准确性。
本申请提供了一种剩余里程的确定方法，包括：
根据车辆所处的当前工况确定第一平均电耗；
根据导航信息、平均加速度及环境温度确定第二平均电耗；
对所述第一平均电耗和所述第二平均电耗进行加权求和获得目标平均电耗；
获取电池剩余电量，并根据所述电池剩余电量和所述目标平均电量确定初始剩余里程；
根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程。
一实施例中，所述工况包括下述至少一种：常规工况、怠速工况、低速开 空调工况、长下坡工况和充电工况；
根据车辆所处的当前工况确定第一平均电耗，包括：
根据电池参数及当前车速确定当前瞬时电耗；
获取上一工况的第一平均电耗；
根据所述当前工况确定上一工况的第一平均电耗的权重以及所述当前瞬时电耗的权重；
根据确定的权重对上一工况的第一平均电耗和所述当前瞬时电耗进行加权求和，获得当前工况的第一平均电耗。
一实施例中，所述导航信息包括当前位置与目的地之间的至少一个路段中每个路段的里程及可行驶的平均速度；
根据导航信息、平均加速度及环境温度确定第二平均电耗，包括：
根据每个路段的平均速度、平均加速度及环境温度确定每个路段的子平均电耗；
根据每个路段的子平均电耗及每个路段的里程计算第二平均电耗。
一实施例中，对所述第一平均电耗和所述第二平均电耗确定目标平均电耗，包括：
根据当前位置与目的地之间的距离确定所述第一平均电耗的权重和所述第二平均电耗的权重；
根据所述权重对所述第一平均电耗和所述第二平均电耗进行加权求和获得目标平均电耗。
一实施例中，获取电池剩余电量，包括：
根据电池容量、电池剩余能量比例、电池温度系数及电池衰减系数计算电池剩余电量。
一实施例中，根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程，包括：
确定当前车速所处的速度区间；
根据所述速度区间确定里程变化阈值；
若所述初始剩余里程相对于上一工况的剩余里程的变化值大于所述里程变化阈值，根据所述里程变化阈值和上一工况的剩余里程确定目标剩余里程；
若所述初始剩余里程相对于所述上一工况的剩余里程的变化值小于或等于 所述里程变化阈值，则将所述初始剩余里程确定为目标剩余里程。
一实施例中，在根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程之后，还包括：
将所述目标剩余里程在表盘中进行显示。
本申请还提供了一种剩余里程的确定装置，包括：
第一平均电耗确定模块，设置为根据车辆所处的当前工况确定第一平均电耗；
第二平均电耗确定模块，设置为根据导航信息、平均加速度及环境温度确定第二平均电耗；
目标平均电耗确定模块，设置为对所述第一平均电耗和所述第二平均电耗进行加权求和获得目标平均电耗；
初始剩余里程确定模块，设置为获取电池剩余电量，并根据所述电池剩余电量和所述目标平均电量确定初始剩余里程；
目标剩余里程获取模块，设置为根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程。
本申请还提供了一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现如上述的剩余里程的确定方法。
本申请还提供了一种车辆，包括剩余里程的确定装置，所述剩余里程的确定装置设置为实现如上述的剩余里程的确定方法。
附图说明
图1为本申请实施例一提供的一种剩余里程的确定方法的流程图；
图2为本申请实施例二提供的一种剩余里程的确定装置的结构示意图；
图3为本申请实施例三提供的一种计算机设备的结构示意图；
图4为本申请实施例四提供的一种车辆的结构示意图。
具体实施方式
下面结合附图和实施例对本申请进行说明。此处所描述的具体实施例仅仅用于解释本申请。为了便于描述，附图中仅示出了与本申请相关的部分。
实施例一
图1为本申请实施例一提供的一种剩余里程的确定方法的流程图，本实施例可适用于确定电动车的剩余里程的情况，该方法可以由剩余里程的确定装置来执行，如图1所示，该方法包括如下步骤：
步骤110，根据车辆所处的当前工况确定第一平均电耗。
工况包括下述至少一种：常规工况、怠速工况、低速开空调工况、长下坡工况和充电工况。车辆所处的工况可以由行驶速度、空调状态、坡度和坡向以及电池的充放电状态等车辆信息确定。
根据车辆所处的当前工况确定第一平均电耗的方式可以是：根据电池参数及当前车速确定当前瞬时电耗；获取上一工况的第一平均电耗；根据当前工况确定上一工况的第一平均电耗的权重以及当前瞬时电耗的权重；根据确定的权重对上一工况的第一平均电耗和当前瞬时电耗进行加权求和，获得当前工况的第一平均电耗。
电池参数可以包括电池放电电压及电池放电电流。根据电池参数及当前车速确定当前瞬时电耗的计算公式为：P瞬时＝U(t)I(t)/V(t)，其中，U(t)为电池放电电压，I(t)为电池放电电流，V(t)为当前车速。
本实施例中，车辆所处的工况不同，上一工况的第一平均电耗以及当前瞬时电耗的权重就不同。当前工况的第一平均电耗的计算公式为：P(t)＝P(t-1)*[1-T(t)]+P瞬时*T(t)。其中，T(t)代表当前瞬时电耗的权重。以常规工况为例，T(t)随车速增大而减小，其对应关系为V(t)[3 10 30 60 90 120 180]->T(t)[1/720000 1/360000 1/120000 1/60000 1/42000 1/30000 1/20000]，其中，V(t)的单位为Km/h。在怠速工况下，T(t)的值为0。
一实施例中，根据车辆所处的当前工况确定第一平均电耗的方式还可以是：根据电池参数及当前车速确定当前瞬时电耗；获取当前工况前10ms内的平均电耗；根据当前工况确定该平均电耗的权重以及当前瞬时电耗的权重；根据确定的权重对该平均电耗和当前瞬时电耗进行加权求和，获得当前工况的第一平均电耗。
步骤120，根据导航信息、平均加速度及环境温度确定第二平均电耗。
导航信息包括当前位置与目的地之间的至少一个路段中每个路段的里程及可行驶的平均速度。导航信息可以获取到前方路段的拥堵情况，从而根据拥堵情况确定每个路段的里程及可行驶的平均速度。示例性的，表1为本实施例中的每个路段信息实例。
表1
段落序号N 1 2 3 4 …
平均车速V 15 6 20 15 …
里程S 5 2 15 6 …
平均加速度可以表征驾驶员的驾驶习惯，对历史一段时间内的加速度进行采样，对采样后的加速度求取平均值，计算公式为：a 平均＝(a1+a2+…+an)/n，a平均为平均加速度，a1，a2…an为历史一段时间的加速度，n为采样个数，采样点位0.01s。
可选的，根据导航信息、平均加速度及环境温度确定第二平均电耗的方式可以是：根据每个路段的平均速度、平均加速度及环境温度确定每个路段的子平均电耗；根据每个路段的子平均电耗及每个路段的里程计算第二平均电耗。
本实施例中，电耗的主要影响因素有温度，车速，加速度等，通过历史数据统计，建立不同温度，不同平均车速，不同平均加速度的平均电耗数据库。温度分成四个区间，A以下，A～B，B～C，C以上；平均车速分成10个区间，平均加速度分成四个区间，如下表2所示，数值和车辆相关。
表2
温度 平均车速 平均加速度 平均电耗
30℃以上 10km/h以下 0.1m/s2以下 0.32kwh/km
30℃以上 10km/h～20km/h 0.1m/s2以下 0.28kwh/km
15℃～30℃ 10km/h以下 0.1m/s2以下 0.18kwh/km
15℃～30℃ 10km/h～20km/h 0.1m/s2以下 0.20kwh/km
… … … …
在获得平均加速度，每个路段的平均速度及环境温度后，通过查表可以获得每个路段的子平均电耗。然后根据每个路段的子平均电耗和每个路段的里程计算总电耗，由总电耗除以当前位置到目的地的总里程，获得第二平均电耗。计算公式如下：P(t) 导航＝(P1*S1+P2*S2+…+Pn*Sn)/(S1+S2+…+Sn)，P(t) 导航为第二平均电耗，P1，P2…Pn为导航路径中每个路段的子平均电耗，S1，S2…Sn为导航路径中每个路段的里程。
步骤130，对第一平均电耗和第二平均电耗进行加权求和获得目标平均电耗。
对第一平均电耗和第二平均电耗进行加权求和获得目标平均电耗的计算公式为：P(t) 目标＝μ*P(t) 导航+(1-μ)*P(t)，μ为加权系数，当前位置与目的地之间的距离越远，μ值越大。
步骤140，获取电池剩余电量，并根据电池剩余电量和目标平均电量确定初始剩余里程。
获取电池剩余电量的方式可以是：根据电池容量、电池剩余能量比例、电池温度系数及电池衰减系数计算电池剩余电。计算公式如下：E(t)＝NεηS；其中，N为总电池容量(仪表显示剩余能量100％时的总电量)，S为电池剩余能量比例(仪表显示值)，ε为电池温度系数，η为电池衰减系数。
根据电池剩余电量和目标平均电量确定初始剩余里程的计算公式为：S(t)＝E(t)/P(t) 目标。
步骤150，根据当前车速和上一工况的剩余里程对初始剩余里程进行修正，获得目标剩余里程。
根据当前车速和上一工况的剩余里程对初始剩余里程进行修正，获得目标剩余里程的方式可以是：确定当前车速所处的速度区间；根据区间确定里程变化阈值；若初始剩余里程相对于上一工况的剩余里程的变化值大于里程变化阈值，则根据里程变化阈值和上一工况的剩余里程确定目标剩余里程；若初始剩余里程相对于上一工况的剩余里程的变化值不大于里程变化阈值，将初始剩余里程确定为目标剩余里程。
速度区间划分为超低速、低速、中速、中高速和高速五种模式，其中，超低速模式的速度范围为0-10km/h，低速模式的速度范围为10-30km/h，中速模式的速度范围为30-60km/h，中高速模式的速度范围为60-90km/h，高速模式的速度范围为90km/h以上。在每个速度模式区间内，设置超低速模式剩余里程减少变化阈值为ε1，低速模式剩余里程减少变化阈值为ε2，中速模式剩余里程减少变化阈值为ε3，中高速模式剩余里程减少变化阈值为ε4，高速模式剩余里程减少变化阈值为ε5，其中，ε5>ε4>ε3>ε2>ε1。设置超低速模式剩余里程增加变化阈值为β1，低速模式剩余里程增加变化阈值为β2，中速模式剩余里程增加变化阈值为β3，中高速模式剩余里程增加变化阈值为β4，高速模式剩余里程增加变化阈值为β5，其中，β5<β4<β3<β2<β1。不同的速度区间，车辆系统效率不同，例如电机效率，在高速模式，系统消耗功率很大，大电流放电容易使得电池能量急剧下降。另外只有从高能耗工况到低能耗工况，剩余里程才会上升，一般情况是从高车速变到低车速剩余里程才会上升，因此需要考虑不同速度区间，设置不同的梯度限制，提高剩余里程计算的准确性。
比较初始剩余里程S(t)与上一工况的剩余里程S(t-1)：若S(t)<＝S(t-1)，且变化值小于或等于阈值，则剩余里程为取值为S(t)，若S(t)<＝S(t-1)，且变化值大于阈值，则剩余里程为取值为S(t-1)-ε，其中ε为剩余里程减小对应的变化阈值。若S(t)>S(t-1)，且变化值小于或等于阈值，则剩余里程的取值为S(t)；若S(t)>S(t-1)，且变化值大于阈值，则剩余里程为取值为S(t-1)-β，其中β为剩余里程增加对应的变化阈值。
可选的，在根据当前车速和上一工况的剩余里程对初始剩余里程进行修正，获得目标剩余里程之后，还包括如下步骤：将所述目标剩余里程在表盘中进行显示。
本实施例中，若车辆在行驶过程中一开始按照相关技术的方案确定剩余里程，即没有结合导航信息确定剩余里程。从一时刻开始，导航信息介入，结合导航信息获得目标剩余里程。将计算获得的目标剩余里程和导航介入时刻的表显剩余里程进行比较，计算目标剩余里程和表显剩余里程的差值，若差值大于车辆阈值，则表显剩余里程替换为目标剩余里程(即表显进行跳变)；若差值不大于车辆阈值，保持表显剩余里程不变。
所述车辆阈值由电池剩余能量比例确定。表3为电池剩余能量比例(荷电状态(State of Charge，SOC))与车辆阈值的对应关系。
表3
SOC值 车辆阈值
>80 50
60～80 30
40～60 20
20～40 10
<20 5
本实施例的技术方案，根据车辆所处的当前工况确定第一平均电耗；根据导航信息、平均加速度及环境温度确定第二平均电耗；对第一平均电耗和第二平均电耗进行加权求和获得目标平均电耗；获取电池剩余电量，并根据电池剩余电量和目标平均电量确定初始剩余里程；根据当前车速和上一工况的剩余里程对初始剩余里程进行修正，获得目标剩余里程。本申请实施例提供的剩余里程的确定方法，基于导航信息及历史平均电耗确定剩余里程，可以提高剩余里 程确定的准确性。
实施例二
图2为本申请实施例二提供的一种剩余里程的确定装置的结构示意图。如图2所示，该装置包括：
第一平均电耗确定模块210，设置为根据车辆所处的当前工况确定第一平均电耗；第二平均电耗确定模块220，设置为根据导航信息、平均加速度及环境温度确定第二平均电耗；目标平均电耗确定模块230，设置为对第一平均电耗和第二平均电耗进行加权求和获得目标平均电耗；初始剩余里程确定模块240，设置为获取电池剩余电量，并根据电池剩余电量和目标平均电量确定初始剩余里程；目标剩余里程获取模块250，设置为根据当前车速和上一工况的剩余里程对初始剩余里程进行修正，获得目标剩余里程。
可选的工况包括下述至少一种：常规工况、怠速工况、低速开空调工况、长下坡工况和充电工况；第一平均电耗确定模块210，设置为：
根据电池参数及当前车速确定当前瞬时电耗；获取上一工况的第一平均电耗；根据当前工况确定上一工况的第一平均电耗的权重以及当前瞬时电耗的权重；根据确定的权重对上一工况的第一平均电耗和当前瞬时电耗进行加权求和，获得当前工况的第一平均电耗。
可选的，导航信息包括当前位置与目的地之间的至少一个路段中每个路段的里程及可行驶的平均速度；第二平均电耗确定模块220，设置为：
根据每个路段的平均速度、平均加速度及环境温度确定每个路段的子平均电耗；根据每个路段的子平均电耗及每个路段的里程计算第二平均电耗。
可选的，目标平均电耗确定模块230，设置为：
根据当前位置与目的地之间的距离确定第一平均电耗的权重和第二平均电耗的权重；根据权重对第一平均电耗和第二平均电耗进行加权求和获得目标平均电耗。
可选的，初始剩余里程确定模块240设置为通过如下方式获取电池剩余电量：
根据电池容量、电池剩余能量比例、电池温度系数及电池衰减系数计算电池剩余电量。
可选的，目标剩余里程获取模块250，还设置为：
确定当前车速所处的速度区间；根据速度区间确定里程变化阈值；若初始剩余里程相对于上一工况的剩余里程的变化值大于里程变化阈值，则根据里程 变化阈值和上一工况的剩余里程确定目标剩余里程；若初始剩余里程相对于上一工况的剩余里程的变化值小于或等于里程变化阈值，则将初始剩余里程确定为目标剩余里程。
可选的，还包括：显示模块，设置为：
将目标剩余里程在表盘中进行显示。
上述装置可执行本申请前述所有实施例所提供的方法，具备执行上述方法相应的功能模块和效果。未在本实施例中详尽描述的技术细节，可参见本申请前述所有实施例所提供的方法。
实施例三
图3为本申请实施例三提供的一种计算机设备的结构示意图。图3示出了适于用来实现本申请实施方式的计算机设备312的框图。图3显示的计算机设备312仅仅是一个示例，不应对本申请实施例的功能和使用范围带来任何限制。设备312是剩余里程的确定功能的计算设备。
如图3所示，计算机设备312以通用计算设备的形式表现。计算机设备312的组件可以包括但不限于：一个或者多个处理器316，内存328，连接不同系统组件(包括内存328和处理器316)的总线318。
总线318表示几类总线结构中的一种或多种，包括存储器总线或者存储器控制器，外围总线，图形加速端口，处理器或者使用多种总线结构中的任意总线结构的局域总线。举例来说，这些体系结构包括但不限于工业标准体系结构(Industry Standard Architecture，ISA)总线，微通道体系结构(Micro Channel Architecture，MCA)总线，增强型ISA总线、视频电子标准协会(Video Electronics Standards Association，VESA)局域总线以及外围组件互连(Peripheral Component Interconnect，PCI)总线。
计算机设备312包括多种计算机系统可读介质。这些介质可以是任何能够被计算机设备312访问的可用介质，包括易失性和非易失性介质，可移动的和不可移动的介质。
内存328可以包括易失性存储器形式的计算机系统可读介质，例如随机存取存储器(Random Access Memory，RAM)330和/或高速缓存存储器332。计算机设备312可以包括其它可移动/不可移动的、易失性/非易失性计算机系统存储介质。仅作为举例，存储系统334可以设置为读写不可移动的、非易失性磁介质(图3未显示，通常称为“硬盘驱动器”)。尽管图3中未示出，可以提供设置为对可移动非易失性磁盘(例如“软盘”)读写的磁盘驱动器，以及对可移动非易失性光盘(例如只读光盘(Compact Disc-Read Only Memory，CD-ROM)、 数字视盘(Digital Video Disc-Read Only Memory，DVD-ROM)或者其它光介质)读写的光盘驱动器。在这些情况下，每个驱动器可以通过一个或者多个数据介质接口与总线318相连。内存328可以包括至少一个程序产品，该程序产品具有一组(例如至少一个)程序模块，这些程序模块被配置以执行本申请实施例的功能。
具有一组(至少一个)程序模块326的程序336，可以存储在例如内存328中，这样的程序模块326包括但不限于操作系统、一个或者多个应用程序、其它程序模块以及程序数据，这些示例中的每一个或一种组合中可能包括网络环境的实现。程序模块326通常执行本申请所描述的实施例中的功能和/或方法。
计算机设备312也可以与一个或多个外部设备314(例如键盘、指向设备、摄像头、显示器324等)通信，还可与一个或者多个使得用户能与该计算机设备312交互的设备通信，和/或与使得该计算机设备312能与一个或多个其它计算设备进行通信的任何设备(例如网卡，调制解调器等等)通信。这种通信可以通过输入/输出(Inpu/Output，I/O)接口322进行。并且，计算机设备312还可以通过网络适配器320与一个或者多个网络(例如局域网(Local Area Network，LAN)，广域网(Wide Area Network，WAN)和/或公共网络，例如因特网)通信。如图所示，网络适配器320通过总线318与计算机设备312的其它模块通信。尽管图中未示出，可以结合计算机设备312使用其它硬件和/或软件模块，包括但不限于：微代码、设备驱动器、冗余处理单元、外部磁盘驱动阵列、磁盘阵列(Redundant Arrays of Independent Disks，RAID)系统、磁带驱动器以及数据备份存储系统等。
处理器316通过运行存储在内存328中的程序，从而执行多种功能应用以及数据处理，例如实现本申请上述实施例所提供的剩余里程的确定方法。
实施例四
图4是本申请实施例四提供的一种车辆的结构示意图，如图4所示，该车辆包括本申请实施例的剩余里程的确定装置，该装置包括：第一平均电耗确定模块，设置为根据车辆所处的当前工况确定第一平均电耗；第二平均电耗确定模块，设置为根据导航信息、平均加速度及环境温度确定第二平均电耗；目标平均电耗确定模块，设置为对所述第一平均电耗和所述第二平均电耗进行加权求和获得目标平均电耗；初始剩余里程确定模块，设置为获取电池剩余电量，并根据所述电池剩余电量和所述目标平均电量确定初始剩余里程；目标剩余里程获取模块，设置为根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程。
实施例五
本申请实施例五提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如本申请所有申请实施例提供的剩余里程的确定方法：根据车辆所处的当前工况确定第一平均电耗；根据导航信息、平均加速度及环境温度确定第二平均电耗；对所述第一平均电耗和所述第二平均电耗进行加权求和获得目标平均电耗；获取电池剩余电量，并根据所述电池剩余电量和所述目标平均电量确定初始剩余里程；根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程。
可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是但不限于电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的例子(非穷举的列表)包括：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、RAM、ROM、可擦式可编程只读存储器(Erasable Programmable Read-Only Memory，EPROM或闪存)、光纤、CD-ROM、光存储器件、磁存储器件、或者上述的任意合适的组合。在本文件中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括但不限于无线、电线、光缆、射频(Radio Frequency，RF)等等，或者上述的任意合适的组合。
可以以一种或多种程序设计语言或其组合来编写用于执行本申请操作的计算机程序代码，所述程序设计语言包括面向对象的程序设计语言，诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言，诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络包括LAN或WAN连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。

Claims (11)

  1. 一种剩余里程的确定方法，包括：
    根据车辆所处的当前工况确定第一平均电耗；
    根据导航信息、平均加速度及环境温度确定第二平均电耗；
    对所述第一平均电耗和所述第二平均电耗进行加权求和获得目标平均电耗；
    获取电池剩余电量，并根据所述电池剩余电量和所述目标平均电量确定初始剩余里程；
    根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程。
  2. 根据权利要求1所述的方法，其中，所述工况包括下述至少一种：常规工况、怠速工况、低速开空调工况、长下坡工况和充电工况；
    所述根据车辆所处的当前工况确定第一平均电耗，包括：
    根据电池参数及当前车速确定当前瞬时电耗；
    获取所述上一工况的第一平均电耗；
    根据所述当前工况确定所述上一工况的第一平均电耗的权重以及所述当前瞬时电耗的权重；
    根据确定的权重对所述上一工况的第一平均电耗和所述当前瞬时电耗进行加权求和，获得所述当前工况的第一平均电耗。
  3. 根据权利要求1所述的方法，其中，所述导航信息包括当前位置与目的地之间的至少一个路段中每个路段的里程及可行驶的平均速度；
    所述根据导航信息、平均加速度及环境温度确定第二平均电耗，包括：
    根据每个路段的平均速度、所述平均加速度及所述环境温度确定每个路段的子平均电耗；
    根据每个路段的子平均电耗及每个路段的里程计算所述第二平均电耗。
  4. 根据权利要求3所述的方法，其中，对所述第一平均电耗和所述第二平均电耗确定目标平均电耗，包括：
    根据当前位置与所述目的地之间的距离确定所述第一平均电耗的权重和所述第二平均电耗的权重；
    根据确定的权重对所述第一平均电耗和所述第二平均电耗进行加权求和获得所述目标平均电耗。
  5. 根据权利要求1所述的方法，其中，所述获取电池剩余电量，包括：
    根据电池容量、电池剩余能量比例、电池温度系数及电池衰减系数计算所述电池剩余电量。
  6. 根据权利要求1所述的方法，其中，所述根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程，包括：
    确定所述当前车速所处的速度区间；
    根据所述速度区间确定里程变化阈值；
    在所述初始剩余里程相对于所述上一工况的剩余里程的变化值大于所述里程变化阈值的情况下，根据所述里程变化阈值和所述上一工况的剩余里程确定所述目标剩余里程；
    在所述初始剩余里程相对于所述上一工况的剩余里程的变化值小于或等于所述里程变化阈值的情况下，将所述初始剩余里程确定为所述目标剩余里程。
  7. 根据权利要求1所述的方法，在所述根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程之后，还包括：
    将所述目标剩余里程在表盘中进行显示。
  8. 一种剩余里程的确定装置，包括：
    第一平均电耗确定模块，设置为根据车辆所处的当前工况确定第一平均电耗；
    第二平均电耗确定模块，设置为根据导航信息、平均加速度及环境温度确定第二平均电耗；
    目标平均电耗确定模块，设置为对所述第一平均电耗和所述第二平均电耗进行加权求和获得目标平均电耗；
    初始剩余里程确定模块，设置为获取电池剩余电量，并根据所述电池剩余电量和所述目标平均电量确定初始剩余里程；
    目标剩余里程获取模块，设置为根据当前车速和上一工况的剩余里程对所述初始剩余里程进行修正，获得目标剩余里程。
  9. 一种计算机设备，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，其中，所述处理器执行所述程序时实现如权利要求1-7中任一项所述的剩余里程的确定方法。
  10. 一种车辆，包括剩余里程的确定装置，所述剩余里程的确定装置设置为实现如权利要求1-7中任一项所述的剩余里程的确定方法。
  11. 一种计算机存储介质，存储有程序，所述程序被处理器执行时实现如 权利要求1-7中任一项所述的剩余里程的确定方法。
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