WO2017067439A1

WO2017067439A1 - Driving range display method, device, and system for electric vehicle

Info

Publication number: WO2017067439A1
Application number: PCT/CN2016/102413
Authority: WO
Inventors: 杨世熙
Original assignee: 北京新能源汽车股份有限公司
Priority date: 2015-10-19
Filing date: 2016-10-18
Publication date: 2017-04-27
Also published as: CN106585386B; CN106585386A

Abstract

A driving range display method, device, and system for an electric vehicle. The driving range display method for an electric vehicle comprises: acquiring a maximum driving range parameter of an electric vehicle; determining a range influence factor of the electric vehicle, wherein the range influence factor is a factor influencing the driving range of the electric vehicle; detecting a parameter of the range influence factor; computing a residual driving range parameter of the electric vehicle according to the parameter of the range influence factor and the maximum driving range parameter of the electric vehicle; and displaying the parameter of the range influence factor and the residual driving range parameter by the electric vehicle, thereby increasing the information amount displayed by the electric vehicle in displaying the driving range information.

Description

Driving range display method, device and system for electric vehicle

Cross-reference to related applications

This application is based on a Chinese patent application filed on Jan.

Technical field

The present invention relates to the field of vehicles, and in particular to a driving range display method, apparatus and system for an electric vehicle.

Background technique

At present, electric vehicles are rapidly developing and promoting. The driving range is the endurance index of the electric vehicle, which is the total mileage that the electric vehicle can continuously drive under the maximum energy reserve. However, due to the limited power battery of electric vehicles, the driving range of electric vehicles can not meet the needs of drivers to the utmost. At the same time, due to the long charging time of electric vehicles and the lack of widespread charging equipment, the energy supply of electric vehicles is also Very inconvenient. Therefore, the power consumption of the existing power battery cannot satisfy the driver's demand mileage. Due to the many factors affecting the driving range of the electric vehicle, the electric vehicle does not reach the driver's demand mileage due to the change of the factors affecting the driving range in the driving.

The driving range information displayed in the electric vehicles sold in the market is only the driving range, and there is no indication of the change of the driving range and the factors causing the driving mileage change, which cannot allow the driver to influence the driving mileage factor. Adjust the car mode in a timely manner, and thus cannot fully utilize the energy of electric vehicles.

In view of the limited information displayed by related art electric vehicles when displaying driving range information, an effective solution has not yet been proposed.

Summary of the invention

The main object of the present invention is to provide a driving range display method, apparatus and system for an electric vehicle to at least solve the problem that the information displayed by the electric vehicle when displaying the driving range information is limited.

In order to achieve the above object, according to an aspect of the present invention, a driving range display method for an electric vehicle is provided. The driving range display method of the electric vehicle includes: obtaining the maximum driving range parameter of the electric vehicle; determining the influence mileage factor of the electric vehicle, wherein the influence mileage factor is a factor affecting the mileage of the electric vehicle; and detecting a parameter affecting the mileage factor; Calculate the remaining driving life of the electric vehicle based on the parameters affecting the mileage factor and the maximum driving range parameter of the electric vehicle. The parameters of the process; and the electric vehicle display parameters affecting the mileage factor and the remaining driving range parameters.

Further, the mileage factors of the electric vehicle include: electrical equipment factors of the electric vehicle, and/or environmental temperature factors of the electric vehicle, and/or driving factors of the electric vehicle.

Further, after obtaining the maximum driving range parameter of the electric vehicle, the driving range display method of the electric vehicle further includes: obtaining the total power of the power battery of the electric vehicle; and the maximum driving range parameter and the total power of the power battery Perform calculations to obtain standard energy consumption for electric vehicles; and electric vehicles display standard energy consumption.

Further, detecting the parameters affecting the mileage factor includes: detecting the traveling speed of the electric vehicle; performing calculation on the maximum driving range parameter and the traveling vehicle speed, obtaining the total running time of the electric vehicle; detecting the power parameter of the electric vehicle of the electric vehicle; The total time and the power parameters of the electrical equipment of the electric vehicle are calculated, and the power consumption of the electric equipment of the electric vehicle is obtained; and the calculation of the power consumption of the standard energy consumption and the electrical equipment of the electric vehicle is performed, and the influence parameter of the electrical equipment is obtained, wherein The electrical equipment influence parameter is a parameter for indicating the influence of the electric equipment of the electric vehicle on the mileage of the electric vehicle.

Further, detecting parameters affecting the mileage factor includes: detecting a temperature of the power battery of the electric vehicle; determining a discharge amount parameter of the power battery according to the temperature of the power battery; and performing calculation on a discharge amount parameter of the power battery and a total power of the power battery, The ambient temperature influence parameter is obtained, wherein the ambient temperature influence parameter is a parameter for indicating the influence of the ambient temperature of the electric vehicle on the mileage of the electric vehicle.

Further, before detecting the parameter affecting the mileage factor, the driving range display method of the electric vehicle further includes: acquiring an accumulated driving mileage parameter of the electric vehicle, wherein the accumulated driving mileage parameter is a mileage parameter of the total driving of the electric vehicle; and acquiring the electric driving The cumulative driving power consumption parameter of the automobile, wherein the accumulated driving power consumption parameter is the power consumption parameter of the electric vehicle under the accumulated driving mileage parameter; performing calculation on the accumulated driving mileage parameter and the accumulated driving power consumption parameter to obtain the electric vehicle The average energy consumption of the accumulated mileage; and the average energy consumption of the electric vehicle showing the accumulated mileage.

Further, before detecting the parameter affecting the mileage factor, the driving range display method of the electric vehicle further includes: acquiring the current mileage parameter of the electric vehicle, wherein the current mileage parameter is that the electric vehicle is currently powered on and The driving mileage parameter during the current power-off stop; obtaining the current driving power consumption parameter of the electric vehicle's power battery, wherein the current driving power consumption parameter is that the electric vehicle is currently powered on and currently powered off. The driving power consumption parameter in the process; performing calculation on the current mileage parameter and the current driving power consumption parameter, obtaining the average energy consumption of the electric vehicle in the current driving mileage; and the electric vehicle displaying the average energy of the driving mileage Consumption.

Further, detecting the parameters affecting the mileage factor includes: performing calculation on the average energy consumption of the standard energy consumption and the current mileage, and obtaining a driving mode influence parameter, wherein the driving mode influence parameter is used to indicate that the driving mode of the electric vehicle is electric The parameter factor affecting the mileage of the car.

In order to achieve the above object, according to another aspect of the present invention, a driving range display device for an electric vehicle is also provided. The driving range display device of the electric vehicle includes: an acquiring unit for acquiring the maximum driving range of the electric vehicle a determining unit for determining an impact mileage factor of the electric vehicle, wherein the mileage factor is a factor affecting the mileage of the electric vehicle; the detecting unit is configured to detect a parameter affecting the mileage factor; and the calculating unit is configured to determine the mileage factor The parameters and the maximum driving range parameter of the electric vehicle calculate the remaining driving range parameters of the electric vehicle; and the display unit is configured to display the parameters affecting the mileage factor and the remaining driving range parameters.

In order to achieve the above object, according to another aspect of the present invention, a driving range display system for an electric vehicle is also provided. The driving range display system of the electric vehicle comprises: a vehicle controller for obtaining the maximum driving range parameter of the electric vehicle, and determining the influence mileage factor of the electric vehicle, wherein the influence mileage factor is a factor affecting the mileage of the electric vehicle, The parameters affecting the mileage factor are detected, and the remaining driving range parameters of the electric vehicle are calculated according to the parameters affecting the mileage factor and the maximum driving range parameter of the electric vehicle; and the display is used to display the parameters affecting the mileage factor and the remaining driving range parameters.

Through the invention, the maximum driving range parameter of the electric vehicle is obtained; the mileage factor of the electric vehicle is determined; the parameter affecting the mileage factor is detected; and the remaining of the electric vehicle is calculated according to the parameter affecting the mileage factor and the maximum driving range parameter of the electric vehicle. The driving mileage parameter; the electric vehicle displays the parameters affecting the mileage factor and the remaining driving range parameters, which solves the problem that the electric vehicle displays limited information when displaying the driving range information, thereby achieving the improvement of the driving range information of the electric vehicle. The effect of the amount of information displayed.

DRAWINGS

The accompanying drawings, which are incorporated in the claims In the drawing:

1 is a schematic diagram of a driving range display system of an electric vehicle according to an embodiment of the present invention;

2 is a schematic view showing a vehicle instrument display of an electric vehicle according to a first embodiment of the present invention;

3 is a schematic diagram of a vehicle instrument display of an electric vehicle according to a second embodiment of the present invention;

4 is a schematic diagram of a vehicle meter display of an electric vehicle according to a third embodiment of the present invention;

5 is a flow chart showing a driving range display method of an electric vehicle according to an embodiment of the present invention;

6 is a schematic diagram of a driving range display device of an electric vehicle according to an embodiment of the present invention.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application. Is this application Some embodiments, not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope shall fall within the scope of the application.

It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or order. It should be understood that the data so used may be interchanged where appropriate to facilitate the embodiments of the present application described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

Embodiments of the present invention provide a driving range display system for an electric vehicle.

1 is a schematic diagram of a driving range display system of an electric vehicle according to an embodiment of the present invention. As shown in FIG. 1, the driving range display system of the electric vehicle includes: a vehicle controller 10 and a display 20.

The vehicle controller 10 is configured to obtain the maximum driving range parameter of the electric vehicle, and determine the influence mileage factor of the electric vehicle, wherein the influence mileage factor is a factor that affects the mileage of the electric vehicle, and the parameters affecting the mileage factor are detected, according to the impact mileage. The parameters of the factors and the maximum driving range parameters of the electric vehicle calculate the remaining driving range parameters of the electric vehicle.

The mileage of an electric vehicle includes the driving range of the electric vehicle, the mileage of the driver's demand, the mileage that the driver has traveled, and the mileage that the driver cannot travel under the current electric battery. The driving range of the electric vehicle is the electric vehicle. After a single charge, the power battery can support the total mileage of the electric vehicle for continuous driving, which is one of the performance indicators of the electric vehicle, specifically reflecting the endurance performance of the electric vehicle under the battery power of the current battery. The operation of electrical equipment of electric vehicles, the change of ambient temperature of electric vehicles and the driving style of electric vehicles affect the mileage of electric vehicles.

After obtaining the maximum driving range parameter S of the electric vehicle, the vehicle controller 10 obtains the total power C of the power battery of the electric vehicle, that is, the maximum power stored by the power battery of the electric vehicle after the completion of the charging. . After obtaining the total power C electric vehicle battery power, access to standard energy consumption of electric vehicles E _standard, the standard energy consumption of electric vehicles electric car E _marked the best energy consumption indicators in total charge of the battery, electric The car has been determined before leaving the factory, and the standard energy consumption E _{standard of the} electric vehicle can be obtained by performing calculation on the maximum driving range parameter S of the electric vehicle and the total power C of the power battery.

The vehicle controller 10 can complete the detection of the parameters of the mileage factor affecting the electric vehicle. Preferably, the vehicle controller 10 detects electrical equipment influence parameters of the electric vehicle. Specifically, the vehicle controller 10 detects the traveling speed of the electric vehicle, and the speed sensor can detect the traveling speed of the electric vehicle. After detecting the traveling speed V of the electric vehicle and the S of the maximum driving range parameter, the vehicle controller 10 performs calculation on the maximum driving range parameter S and the traveling vehicle speed V, and obtains that when the electric vehicle runs to the power battery, the power is completely used up. Time T. The vehicle controller 10 detects the power parameter P of the electrical appliance, for example, the power parameter P of the air conditioner of the electric vehicle during operation. Moreover, the vehicle controller 10 acquires the usage time of the electrical equipment, and the usage time of the electrical equipment defaults to the time when the electric vehicle runs until the power of the power battery is completely used up, that is, the total travel time T. The vehicle controller 10 performs calculations on the total travel time T and the power parameter P of the electric appliance of the electric vehicle to obtain the power consumption W of the electric appliance of the electric vehicle. After the vehicle controller 10 acquires the power consumption W of electric vehicles and standard energy E determined _standard electric vehicle electrical equipment, electrical equipment power consumption W of the standard energy consumption of electric vehicles and electric vehicles E _standard execution Calculating, the electrical equipment influence parameter I _{1 is obtained} , wherein the electrical equipment influence parameter is a parameter for indicating the influence of the electric equipment of the electric vehicle on the mileage of the electric vehicle.

Preferably, the vehicle controller 10 detects an ambient temperature factor of the electric vehicle. Specifically, the vehicle controller 10 detects the temperature of the power battery, and determines the discharge amount parameter C _{1 of the} power battery according to the temperature of the power battery and the temperature discharge curve of the power battery, that is, the current discharge amount of the battery. After determining the discharge amount parameter C ₁ of the power battery, performing calculation on the discharge amount parameter C _{1 of the} power battery and the total power amount C of the power battery to obtain an ambient temperature influence parameter I ₂ , wherein the ambient temperature influence parameter is used to indicate electric The parameter of the influence of the ambient temperature of the car on the mileage of the electric vehicle. During the change of the ambient temperature after the electric vehicle, the ambient temperature influence parameter is calculated every time the temperature of the battery pack of the electric battery changes by 0.1 °C.

The vehicle controller 10 obtains the accumulated mileage parameter S _{1 of the} electric vehicle before detecting the parameter affecting the mileage factor. Specifically, the accumulated mileage parameter S ₁ of the electric vehicle is the mileage parameter of the total driving of the electric vehicle. Vehicle controller 10 obtains the accumulated electric vehicle with electricity parameters C _2, wherein the integrated driving consumption parameter C ₂ is an electric vehicle power parameters in the parameter S accumulated mileage _1. After acquiring the accumulated mileage parameter S _{1 of the} electric vehicle and the accumulated driving power consumption parameter C ₂ , the vehicle controller 10 performs calculation on the accumulated mileage parameter S ₁ and the accumulated driving power consumption parameter C _{2 to} obtain an electric vehicle. the accumulated mileage of the average energy E _1, the accumulated mileage of the average energy consumption of electric battery E ₁ is the average travel per kilometer cumulative power consumption in electric vehicles.

The vehicle controller 10 obtains the current mileage parameter S _{2 of the} electric vehicle, that is, acquires the mileage parameter of the electric vehicle during the current power-on startup and the current power-off stop, and simultaneously acquires the power battery of the electric vehicle. The current running power parameter C ₃ , that is, the vehicle controller 10 acquires the running power consumption parameter of the electric vehicle during the current power-on start and the current power-off stop. The vehicle controller 10 obtains the current running power parameter C ₃ by determining the current average power parameter C _{4 of the} electric vehicle, that is, determining the power consumption between the power-on and the power-off stop of the electric vehicle. Parameters to get. The current running power parameter C _{3 of the} electric vehicle is determined by the current power consumption parameter C ₄ and the power consumption amount W of the electric device. After acquiring the current mileage parameter S ₂ of the electric vehicle and acquiring the current driving power consumption parameter C ₃ of the power battery of the electric vehicle, the vehicle controller 10 pairs the current mileage parameter S ₂ and the current driving power. The quantity parameter C ₃ performs a calculation to obtain an average energy consumption E _{2 of the} electric vehicle in the current mileage. After the power-on and power-off of the electric vehicle, the average energy consumption E _{2 of the} mileage is cleared, and the electric vehicle starts to be recalculated during the next power-on start of the electric vehicle and the next power-off. After the average energy consumption.

Preferably, after obtaining the average energy consumption E _{2 of the} electric vehicle in the current mileage, the vehicle controller 10 performs calculation on the standard energy consumption E _standard and the average energy consumption E _{2 of the current} mileage, and obtains driving of the electric vehicle. The mode affects the parameter I ₃ , wherein the driving mode influence parameter is a parameter factor for indicating the influence of the driving mode of the electric vehicle on the mileage of the electric vehicle.

The vehicle controller 10 calculates the remaining driving range parameters of the electric vehicle according to the parameters affecting the mileage factor and the maximum driving range parameter of the electric vehicle. Specifically, the remaining driving range parameter is the available mileage that the electric vehicle can continue to travel. After the vehicle controller 10 determines the electrical equipment influence parameter I ₁ , and/or after determining the ambient temperature influence parameter I ₂ , and/or after determining the driving mode influence parameter I ₃ , according to the electrical equipment influence parameter I ₁ And/or, according to the ambient temperature influence parameter I ₂ , and/or, calculate the remaining driving range parameter of the electric vehicle according to the driving mode influence parameter I ₃ and the maximum driving range parameter S of the electric vehicle.

The display 20 is configured to display parameters affecting the mileage factor and remaining driving range parameters.

The display 20 is a vehicle instrument built in an electric vehicle, and the vehicle instrument includes a vehicle speed meter that displays a vehicle speed, an engine speed meter that displays an engine speed, and the like. Preferably, the liquid crystal display of the display 20 displays the information of the driving range and the remaining driving range parameters. The electric vehicle controller 10 calculates the electric vehicle according to the electrical equipment influence parameter I ₁ , and/or according to the ambient temperature influence parameter I ₂ , and/or according to the driving mode influence parameter I ₃ and the maximum driving range parameter S of the electric vehicle. After the remaining driving range parameter, the display 20 displays the electrical equipment affecting parameter I ₁ , and/or the ambient temperature affecting parameter I ₂ , and/or the driving mode affecting parameter I ₃ and the remaining driving range parameters. Standard display 20 is also used to display the energy consumption of electric vehicles E _standard, the average energy consumption of electric vehicles accumulated mileage of E _1, this average mileage of energy E _2.

The electric vehicle display 20 improves the electric vehicle's display of the driving range information by displaying the electric vehicle display electrical equipment influence parameter, and/or the ambient temperature influence parameter, and/or the driving mode influence parameter and the remaining driving range parameter. The amount of information displayed enables the driver to understand the mileage factor that causes the mileage change of the electric vehicle in the process of driving, and adjust the vehicle mode according to the change of the parameters affecting the mileage factor, so that the driver can reach the driving destination. .

2 is a schematic diagram of a vehicle meter display of an electric vehicle according to a first embodiment of the present invention. As shown in Fig. 2, the temperature of the environment in which the electric vehicle is located is -20 °C. After the electric vehicle starts to be powered on, the maximum driving range parameter S of the electric vehicle displayed by the electric vehicle's vehicle instrument is "continued". Mileage: 150Km", that is, the electric car has a battery life of 150Km when its electric battery is fully charged. The standard energy consumption E of this electric vehicle is _marked as “standard energy consumption of the vehicle: 19.0 (KwH/100Km)”, which is the best energy consumption index of the electric vehicle under the total power of the power battery. The driving range S is 150Km and the standard energy. E consumption _marked 19.0 (KwH / 100Km) for the performance of electric vehicles, electric vehicles have been identified before the factory. The average energy consumption E ₁ of the accumulated mileage of the electric vehicle is "cumulative average energy consumption: 21.0 (KwH/100Km)". Specifically, the average energy consumption E ₁ of the accumulated mileage is the cumulative energy consumption rate of the electric vehicle in the number of times its power battery is charged from the start of charging to the current total number of driving, wherein the electric vehicle is after and after the power-on. The travel within the time period before the electric stop is once. The average energy consumption of the accumulated mileage of the electric vehicle is 21.0 (KwH/100Km) compared with the standard energy consumption of 19.0 (KwH/100Km). When the average energy consumption of the electric vehicle in the accumulated mileage is 21.0 (KwH/100Km) and the standard energy When the difference of 19.0 (KwH/100Km) is within the preset threshold range, the electric vehicle normally consumes energy during operation, and the electric vehicle is within the normal working range. Since the electric vehicle has just started, the current mileage parameter S ₂ of the electric vehicle is 0, and the current driving power consumption parameter C _{3 of the} electric vehicle's power battery is also 0, therefore, the average energy consumption E of the current mileage is ₂ The calculation of “this average energy consumption:” has no result.

As shown in Fig. 2, the "influence mileage factor" includes the ambient temperature factor "temperature" of the electric vehicle, the driving mode factor "driving mode" of the electric vehicle, and the electrical equipment factor "equipment" of the electric vehicle. The temperature of the environment where the electric vehicle is located is -20 °C, the temperature inside the battery pack of the electric vehicle is -15 °C, and the influence parameter of the ambient temperature is 15%, that is, the parameter of the influence of the ambient temperature of the electric vehicle on the mileage of the electric vehicle is 15 %, therefore, the ambient temperature factor parameter I ₂ of the electric vehicle is "temperature: 15% - 15 ° C (temperature inside the battery pack)". The electric car has just started, there is no sudden braking, rapid acceleration, and driving outside the ECO speed. Therefore, the driving mode factor parameter I ₃ of the electric vehicle is "driving mode: 00%". The electric vehicle does not have any equipment turned on. Therefore, the electrical equipment factor parameter I ₁ of the electric vehicle is “equipment: 00 Km”. The ambient temperature factor parameter I ₂ of the electric vehicle is "temperature: 15% -15 ° C (temperature inside the battery pack)", the driving mode factor parameter I ₃ of the electric vehicle is "driving mode: 00%" and electrical equipment of the electric vehicle The factor parameter I ₁ is the influence factor of the “equipment: 00Km”, and the calculated remaining driving range of the electric vehicle “the remaining driving range: 127.5Km”, that is, the mileage that the electric vehicle can continue to travel is 127.5Km. Electric vehicles are not available for driving range "Unavailable driving range: 22.5Km".

In this embodiment, after the temperature of the electric vehicle in the environment is -20 ° C and the electric vehicle is just started after power-on, the average driving energy parameter S of the electric vehicle, the standard energy consumption E _standard , and the average mileage of the accumulated driving mileage are adopted. E ₁ , the average energy consumption E _{2 of the} mileage, the ambient temperature factor parameter I ₂ , the driving mode factor parameter I _{3 of the} electric vehicle, and the electrical equipment factor parameter I ₁ of the electric vehicle are displayed, thereby improving the display of the electric vehicle The amount of information displayed when driving mileage information.

3 is a schematic diagram of a vehicle meter display of an electric vehicle according to a second embodiment of the present invention. As shown in FIG. 3, after the power-on is started, the electric vehicle turns on the air conditioner of the electric vehicle. The maximum driving range parameter S displayed by the vehicle instrument of the electric vehicle is “continuous driving range: 150Km”. The standard energy consumption E of this electric vehicle is _marked as "standard vehicle energy consumption: 19.0 (KwH/100Km)". The electric air conditioner of the electric vehicle has electric energy consumption, and by detecting the traveling speed V of the electric vehicle, performing calculation on the maximum driving range parameter S and the traveling vehicle speed V, obtaining the total running time T of the electric vehicle, and then detecting the power parameter of the electric vehicle's air conditioner. P, the calculation is performed on the total travel time T and the power parameter P of the air conditioner of the electric vehicle, and the power consumption parameter W of the air conditioner of the electric vehicle is obtained. The current running power parameter C _{3 of the} electric vehicle is determined by the current power consumption parameter C ₄ and the power consumption amount W of the electric device. After acquiring the current mileage parameter S ₂ of the electric vehicle and acquiring the current driving power consumption parameter C ₃ of the power battery of the electric vehicle, performing the current mileage parameter S ₂ and the current driving power consumption parameter C ₃ Calculate, get the average energy consumption E _{2 of the} electric vehicle in this mileage. Since the electric vehicle just started, the mileage parameter S ₂ is 0. Therefore, the average energy consumption of this electric vehicle is E _{2 .} “This average energy consumption: 99.9 (KwH/100Km)”.

As shown in FIG. 3, the ambient temperature factor parameter I ₂ of the electric vehicle is “temperature: 15%-15° C. (the temperature inside the battery pack)”, and the driving mode factor parameter I ₃ of the electric vehicle is “driving mode: 00%”. Calculate the standard energy consumption E _standard and the power consumption of the air conditioner of the electric vehicle. The air conditioning influence parameter is 15Km, that is, the driving range is 150Km×10%, and the vehicle instrument displays “equipment: 15Km air conditioner”. The ambient temperature factor parameter I ₂ of the electric vehicle is “temperature: 15%-15° C.”, the driving mode factor parameter I ₃ of the electric vehicle is “driving mode: 00%”, and the air conditioning factor parameter I ₁ of the electric vehicle is “equipment”. : 15Km air conditioning" affects the mileage factor parameter, the calculated remaining driving range of the electric vehicle "remaining driving range: 112.5Km", that is, the mileage that the electric vehicle can continue to travel is 112.5Km, the electric vehicle is not available for continued driving Mileage "Unavailable driving range: 37.5Km".

In this embodiment, the temperature of the electric vehicle in the environment is -20 ° C. After the electric vehicle starts to be powered on and the air conditioner is turned on, the maximum driving range parameter S of the electric vehicle, the standard energy consumption E _standard , and the accumulated driving mileage are The average energy consumption E ₁ , the average energy consumption E _{2 of the current} mileage, the ambient temperature factor parameter I ₂ , the driving mode factor parameter I _{3 of the} electric vehicle, and the electrical equipment factor parameter I _{1 of the} electric vehicle are displayed, thereby improving the electric power The amount of information that the car displays when it displays the driving range information.

4 is a schematic diagram of a vehicle meter display of an electric vehicle according to a third embodiment of the present invention. As shown in FIG. 4, after the power-on is started, the electric vehicle turns on the air conditioner of the electric vehicle. After the electric vehicle runs for a period of time, the maximum driving range parameter S displayed by the vehicle instrument of the electric vehicle is “continuous driving range: 150Km”. The standard energy consumption E of this electric vehicle is _marked as "standard vehicle energy consumption: 19.0 (KwH/100Km)". The electric air conditioner of the electric vehicle has electric energy consumption, and by detecting the traveling speed V of the electric vehicle, performing calculation on the maximum driving range parameter S and the traveling vehicle speed V, obtaining the total running time T of the electric vehicle, and then detecting the power parameter of the electric vehicle's air conditioner. P, the calculation is performed on the total travel time T and the power parameter P of the air conditioner of the electric vehicle, and the power consumption parameter W of the air conditioner of the electric vehicle is obtained. The current running power parameter C _{3 of the} electric vehicle is determined by the current power consumption parameter C ₄ and the power consumption amount W of the electric device. After acquiring the current mileage parameter S ₂ of the electric vehicle and acquiring the current driving power consumption parameter C ₃ of the power battery of the electric vehicle, performing the current mileage parameter S ₂ and the current driving power consumption parameter C ₃ Calculate and get the average energy consumption E _{2 of the} electric vehicle in this mileage. Since the electric vehicle has just started, the mileage parameter S _{2 is} not 0. Therefore, the average energy consumption of the current mileage of the electric vehicle is E. ₂ “This average energy consumption: 23.5 (KwH/100Km)”.

As shown in FIG. 4, the ambient temperature factor parameter I ₂ of the electric vehicle is "temperature: 15% - 15 ° C (temperature inside the battery pack)". Since the electric vehicle is in the process of driving, it is rushed 10 times, the brake is 15 times, and the ECO speed is 20Km. The average power consumption parameter C _{4 is determined} , and the average power consumption parameter C ₄ and the consumption of the electrical equipment are passed. The electric quantity W determines the current running electric energy parameter C _{3 of the} electric vehicle. After acquiring the current mileage parameter S ₂ of the electric vehicle and acquiring the current driving power consumption parameter C ₃ of the power battery of the electric vehicle, performing the current mileage parameter S ₂ and the current driving power consumption parameter C ₃ Calculate and get the average energy consumption E _{2 of the} electric vehicle in this mileage. Calculate the standard energy consumption E _standard and the average energy consumption E _{2 of the current} mileage, and calculate the driving mode influence parameter I ₃ as “driving mode: 05% rapid acceleration 10 times, sudden braking 15 times, 20Km EOC speed outside driving ". The electrical equipment factor parameter I ₁ of the electric vehicle is "equipment: 15Km air conditioner". The ambient temperature factor parameter I ₂ of the electric vehicle is "temperature: 15% -15 ° C (temperature inside the battery pack)", the driving mode factor parameter I ₃ of the electric vehicle is "driving mode: 05%", electric equipment of the electric vehicle The factor parameter I ₁ is the influence factor of the “equipment: 15Km”, and the calculated remaining driving range of the electric vehicle “the remaining driving range: 105Km”, that is, the mileage that the electric vehicle can continue to travel is 105Km, the electric vehicle Unavailable driving range "Unavailable driving range: 45Km".

In this embodiment, the electric vehicle is turned on the air conditioner at a temperature of -20 ° C in the environment, and the driving mode of the electric vehicle is changed during the driving of the electric vehicle just after the power is turned on, and the maximum driving range parameter S of the electric vehicle is E standard energy consumption _standard, the accumulated mileage of the average energy E _1, the current mileage of the average energy E _2, ambient temperature factor parameters I _2, the factors driving style electric vehicle parameters I factor ₃ electrical equipment and electric vehicles The parameter I ₁ is displayed, thereby increasing the amount of information displayed by the electric vehicle when displaying the driving range information.

The embodiment of the driving range display system of the electric vehicle adopts the vehicle controller to obtain the maximum driving range parameter of the electric vehicle, and then determines the influence mileage factor of the electric vehicle, detects the parameters affecting the mileage factor, and then according to the parameters affecting the mileage factor. And the maximum driving range parameter of the electric vehicle calculates the remaining driving range parameters of the electric vehicle, and then displays the parameters affecting the mileage factor and the remaining driving range parameters through the display, thereby improving the information displayed by the electric vehicle when displaying the driving range information. the amount.

The embodiment of the invention further provides a driving range display method for an electric vehicle. It should be noted that the driving range display system of the electric vehicle according to the embodiment of the present invention can be used to execute the driving range display method of the electric vehicle of the embodiment.

FIG. 5 is a flow chart showing a driving range display method of an electric vehicle according to an embodiment of the present invention. As shown in FIG. 5, the driving range display method of the electric vehicle includes the following steps:

Step S501: Acquire a maximum driving range parameter of the electric vehicle.

The mileage of an electric vehicle is related to the battery capacity of the electric vehicle's power battery and the utilization of the battery power. The driving range of the electric vehicle is the power battery of the electric vehicle. After one charge, the power battery can support the total mileage of the electric vehicle for continuous driving, which is one of the performance indexes of the electric vehicle, specifically reflecting the battery of the electric vehicle in the current battery. Endurance performance under power. The endurance capability of the electric vehicle is determined by obtaining the maximum driving range parameter of the electric vehicle continuously running under the condition that the battery of the power battery is sufficient.

After obtaining the maximum driving range parameter S of the electric vehicle, the total electric quantity C of the electric battery of the electric vehicle is obtained, that is, the maximum electric quantity stored by the power battery of the electric vehicle after the completion of the charging is obtained. After obtaining the total power C of the electric vehicle's power battery, the standard energy consumption E _{standard of the} electric vehicle is obtained. Specifically, the standard energy consumption E of the electric vehicle is _marked as the optimal energy consumption of the electric vehicle under the total power of the power battery. The indicator has been determined before the electric vehicle leaves the factory. The average energy consumption of the accumulated mileage of the electric vehicle is compared with the standard energy consumption E _standard , wherein the average energy consumption of the accumulated mileage of the electric vehicle is the cumulative energy consumption rate in units of 100 kilometers. When the accumulated mileage of electric cars in the average energy consumption and energy consumption standard E _marked difference in a preset threshold range, electric vehicle energy consumption during normal operation, the electric car within the normal operating range, otherwise, electric vehicles The energy consumption exceeds the range of energy consumption of electric vehicles, and electric vehicles do not work properly. When the energy consumption of an electric vehicle exceeds the range of the energy consumption of the electric vehicle frequently occurs, the driving performance of the electric vehicle is affected.

E electric car standard energy consumption can be calculated by total energy _standard maximum driving range of parameters S and battery electric vehicles C execution. Preferably, the standard electric vehicle energy E _standard by the equation: total power consumption of electric vehicles Standard E = _standard power cell C × 100 / maximum driving range of the parameter S is determined, wherein the electric energy consumption of the standard vehicle E _standard units of KwH / 100Km, the total power consumption of the battery unit C is KwH, the largest driving range in units of Km. Standard electric vehicle energy E _standard display, alternatively, the standard energy consumption of the electric vehicle is displayed by the LCD screen of the electric car dashboard.

Step S502, determining an influence mileage factor of the electric vehicle, wherein the influence mileage factor is a factor affecting the mileage of the electric vehicle.

Electric vehicles are subject to external environmental factors during driving. External environmental factors include factors that affect the mileage of electric vehicles, that is, the mileage factor of electric vehicles. Preferably, the mileage factor of the electric vehicle includes electrical equipment factors of the electric vehicle, and/or environmental temperature factors of the electric vehicle, and/or driving mode factors of the electric vehicle. Specifically, the mileage factor of the electric vehicle includes the electrical equipment factors of the electric vehicle. For example, the electric air conditioner of the electric vehicle runs on the electric vehicle in the working mode of starting operation, heating, cooling, dehumidification, timing control, and stopping operation. The impact of mileage. The influence factor of the electric vehicle may also include the environmental temperature factor of the electric vehicle. For example, the electric vehicle has different driving ranges in the summer and winter due to the difference in the ambient temperature of the electric vehicle. The mileage factor of the electric vehicle may also include the driving mode factor of the electric vehicle, for example, the number of sudden braking that occurs in the driving range of the electric vehicle from the power-on to the power-off stop, the number of sudden accelerations, and the speed of the vehicle other than the ECO. The effect of the mileage traveled on the mileage of the electric vehicle.

Step S503, detecting parameters affecting the mileage factor.

The parameters that affect the mileage factor include the electrical equipment factors of the electric vehicle, and/or the ambient temperature factor of the electric vehicle, and/or the detection of the driving mode factor of the electric vehicle.

Preferably, detecting parameters affecting the mileage factor includes detecting electrical equipment factors of the electric vehicle. Detection of electricity The driving speed V of the moving car is detected by the speed sensor to realize the traveling speed of the electric vehicle. After detecting the traveling speed V and the maximum driving range parameter S of the electric vehicle, calculation is performed on the maximum driving range parameter and the traveling speed, and the total traveling time T of the electric vehicle is obtained. Preferably, the total travel time T of the electric vehicle is determined by the formula: total travel time T=maximum driving range parameter S/traveling vehicle speed V, wherein the unit of the total running time T of the electric vehicle is H, the maximum driving range parameter The unit of S is Km, and the unit of the traveling speed V is Km/H, so that the time when the electric vehicle runs until the power of the power battery is completely used is obtained.

The power consumption of electrical equipment per unit time is certain, that is, the power parameter P of the electrical equipment is certain. After the electrical equipment of the electric vehicle is turned on, as the electrical equipment usage time is accumulated, the power consumption W of the electrical equipment is also increasing. The usage time of the electrical equipment is obtained, and the usage time of the electrical equipment defaults to the time when the electric vehicle runs until the power of the power battery is completely used up, that is, the total travel time T. The calculation is performed on the total travel time T and the power parameter P of the electric appliance of the electric vehicle, and the power consumption W of the electric appliance of the electric vehicle is obtained. Preferably, the power consumption of the electrical equipment of the electric vehicle is determined by the formula: the power consumption of the electrical equipment W=the total travel time T×the power parameter P of the electrical equipment, wherein the unit of the power consumption W of the electrical equipment is KwH, the unit of the total travel time T is H, and the unit of the power parameter P of the electrical equipment is Kw.

After obtaining the power consumption W of electric energy consumption E standard automobile electrical equipment and determining the _standard electric vehicle, the power consumption W of the standard electrical equipment performs the calculation of the energy consumption of electric vehicles and electric vehicles _labeled E, electrical equipment to give The parameter I _{1 is} affected, wherein the electrical equipment influence parameter is a parameter for indicating an influence of the electric equipment of the electric vehicle on the mileage of the electric vehicle. Preferably, the electrical equipment influence parameter I _{1 is} determined by the formula: the electrical equipment influence parameter I ₁ = the power consumption of the electrical equipment W / the standard energy consumption E _standard . Wherein the parameters affecting electrical equipment unit I is ₁ Km, the power consumption W of the electrical equipment unit KwH, _labeled standard units of energy E KwH / Km.

The embodiment detects the running speed of the electric vehicle, performs calculation on the maximum driving range parameter and the traveling vehicle speed, obtains the total running time of the electric vehicle, and then detects the power parameter of the electric vehicle's electrical equipment, and the total driving time and the electric vehicle. The power parameters of the electrical equipment are calculated, and the power consumption of the electrical equipment of the electric vehicle is obtained. Finally, the standard energy consumption and the power consumption of the electrical equipment of the electric vehicle are calculated, and the influence parameters of the electrical equipment are obtained, thereby determining that the electrical equipment is electrically powered. The parameters affected by the mileage of the car.

Preferably, detecting parameters affecting the mileage factor includes detecting an ambient temperature factor of the electric vehicle. The ambient temperature of the power battery of the electric vehicle affects the temperature of the battery pack of the power battery, and the discharge amount parameter of the power battery changes with the temperature of the battery pack of the power battery, and detects the temperature of the power battery, that is, the detection The temperature of the battery pack of the power battery can be detected by a temperature sensor. The correspondence relationship between the discharge amount parameter of the power battery of the electric vehicle and the temperature of the battery pack of the power battery can be determined by the temperature discharge curve of the power battery. After detecting the temperature of the power battery, the discharge amount parameter C _{1 of the} power battery is determined according to the temperature of the power battery and the temperature discharge curve of the power battery, that is, the current discharge amount of the battery. After determining the discharge amount parameter C ₁ of the power battery, performing calculation on the discharge amount parameter C _{1 of the} power battery and the total power amount C of the power battery to obtain an ambient temperature influence parameter I ₂ , wherein the ambient temperature influence parameter is used to indicate electric The parameter of the influence of the ambient temperature of the car on the mileage of the electric vehicle. Preferably, the ambient temperature influence parameter I _{2 is} determined by the formula: the ambient temperature influence parameter I ₂ =1 - the discharge amount parameter C ₁ × 100 of the power battery / the total power C of the power battery, wherein the ambient temperature affects the parameter I ₂ The unit is %, the unit of the discharge amount parameter C ₁ of the power battery is KwH, and the unit of the total electric quantity C of the power battery is KwH. Each time the electric vehicle is powered on, the discharge capacity parameter of the power battery is calculated once, and then the ambient temperature influence parameter I _{2 is} determined. During the temperature change after the electric vehicle, the temperature of the battery pack of the electric battery is calculated every 0.1 ° C. .

In this embodiment, the temperature of the power battery of the electric vehicle is detected, and then the discharge quantity parameter of the power battery is determined according to the temperature of the power battery, and then the calculation of the discharge quantity parameter of the power battery and the total power of the power battery is performed to obtain an environmental temperature influence parameter. Therefore, the parameters of the influence of the ambient temperature of the electric vehicle on the mileage of the electric vehicle are determined.

After the completion of one charge, the power battery of the electric vehicle accumulates the mileage parameters of the electric vehicle in total during the running, and the total power consumption of the power battery also follows the mileage parameter of the electric vehicle. Accumulated and accumulated. Preferably, before detecting the parameter affecting the mileage factor, the accumulated mileage parameter S _{1 of the} electric vehicle is obtained. Specifically, the accumulated mileage parameter S ₁ of the electric vehicle is the mileage parameter of the total driving of the electric vehicle. The accumulated running power consumption parameter C _{2 of the} electric vehicle is obtained, wherein the accumulated running power consumption parameter C ₂ is a power consumption parameter of the electric vehicle under the accumulated driving range parameter S ₁ . After obtaining the accumulated mileage parameter S ₁ of the electric vehicle and acquiring the accumulated mileage parameter S ₁ of the electric vehicle, performing calculation on the accumulated mileage parameter S ₁ and the accumulated driving power consumption parameter C _{2 to} obtain the accumulated mileage of the electric vehicle the average energy E _1, the accumulated mileage of the average energy E ₁ for the electric battery in electric cars with a total power consumption per kilometer average. Preferably, the average mileage accumulated energy E ₁ by the equation: the average energy accumulated mileage accumulated with the E ₁ = ₂ × 100 / S ₁ accumulated mileage parameters determined using power parameters C. The unit of the average energy consumption E ₁ of the accumulated driving mileage is KwH/100Km, the unit of the accumulated driving power consumption parameter C ₂ is KwH, and the unit of the accumulated driving mileage parameter S ₁ is Km. The electric vehicle displays the average energy consumption E ₁ of the accumulated mileage. Alternatively, the average energy consumption of the accumulated mileage of the electric vehicle is displayed by the liquid crystal display of the electric vehicle meter.

The embodiment obtains the accumulated mileage parameter of the electric vehicle before detecting the parameter affecting the mileage factor, and then acquires the accumulated driving power consumption parameter of the electric vehicle, and then performs calculation on the accumulated driving mileage parameter and the accumulated driving power consumption parameter, The average energy consumption of the accumulated mileage of the electric vehicle is obtained, and finally the electric vehicle displays the average energy consumption of the accumulated mileage, thereby increasing the amount of information displayed by the electric vehicle when displaying the driving range information.

The electric vehicle is once driven by the electric vehicle from the time of power-on to the time before the power-off, corresponding to one power-on start and one power-off stop of the electric vehicle. The electric battery of the electric vehicle can be used for multiple power-on and power-off processes of the electric vehicle after one charge is completed. The mileage parameter of the electric vehicle after each power-on start to the stop of the power-off corresponds to the specific power consumption parameter of the power battery. Specifically, the current mileage parameter S _{2 of the} electric vehicle is acquired, that is, the mileage parameter of the electric vehicle during the current power-on startup and the current power-off stop is acquired, and at the same time, the power battery of the electric vehicle is acquired. The secondary driving power consumption parameter C ₃ , that is, the driving power consumption parameter during the current power-on start and the current power-off stop of the electric vehicle. Obtain the current power consumption parameter C ₃ .

Preferably, the number of sudden braking in the mileage of the electric vehicle during the power-on start and the power-off stop, the number of rapid accelerations, and the mileage of the ECO vehicle outside the driving speed are counted, wherein the speed of the ECO vehicle speed is less than It is equal to 30Km/h, and the vehicle speed is greater than or equal to 80Km/h. The current average power consumption parameter C _{4 of the} electric vehicle is determined according to the number of sudden braking, the number of sudden accelerations, and the number of miles traveled outside the ECO vehicle speed, that is, the power consumption parameter between the power-on and the power-off stop of the electric vehicle. . Preferably, the current running power consumption parameter C _{3 is} determined by the current average power consumption parameter C ₄ and the power consumption amount W of the electric device. Specifically, the current running power consumption parameter C _{3 is} determined by the formula: the current running power consumption parameter C ₃ = the current average power consumption parameter C ₄ - the power consumption amount W of the electric device. The unit of the current power consumption parameter C ₃ is KwH, and the unit of the average power consumption parameter C ₄ is KwH. After acquiring the current mileage parameter S ₂ of the electric vehicle and acquiring the current driving power consumption parameter C ₃ of the power battery of the electric vehicle, performing the current mileage parameter S ₂ and the current driving power consumption parameter C ₃ Calculate and get the average energy consumption E _{2 of the} electric vehicle in this mileage. Preferably, the average energy consumption E _{2 of the} current mileage is determined by the formula: the average energy consumption of the current mileage E ₂ = the current driving power consumption parameter C ₃ × 100 / the current mileage parameter S ₂ . Among them, the unit of the average energy consumption E _{2 of the} current mileage is KwH/100Km, the unit of the driving power consumption parameter C ₃ is KwH, and the unit of the current mileage parameter S ₂ is Km. After the power-on and power-off of the electric vehicle, the average energy consumption E _{2 of the} mileage is cleared, and the electric vehicle starts to be recalculated during the next power-on start of the electric vehicle and the next power-off. After the average energy consumption. The electric vehicle displays the average energy consumption of the mileage. Alternatively, the average energy consumption of the current mileage of the electric vehicle is displayed on the liquid crystal display of the electric vehicle meter.

After obtaining the average energy consumption of the electric vehicle in the current mileage, the parameters for detecting the mileage factor include: calculating the standard energy consumption E _standard and the average energy consumption E _{2 of the current} mileage, and obtaining the driving mode influence parameter I ₃ , wherein the driving mode influence parameter is a parameter factor for indicating the influence of the driving mode of the electric vehicle on the mileage of the electric vehicle. Preferably, the driving mode influence parameter I _{3 is} determined by the formula: driving mode influence parameter I ₃ = standard energy consumption E _standard × 100 / average energy consumption E _{2 of the current} mileage. Wherein the driving unit of embodiment ₃ Effect parameter I is%, the standard units of energy E _marked KwH / Km, this average mileage of energy E per unit of KwH ₂ / Km.

In this embodiment, the calculation method of the standard energy consumption and the average energy consumption of the mileage is used to obtain the driving mode influence parameter, thereby determining the parameter factor of the driving mode of the electric vehicle on the driving mileage of the electric vehicle.

Step S504, calculating the remaining driving range parameters of the electric vehicle according to the parameters affecting the mileage factor and the maximum driving range parameter of the electric vehicle.

The remaining driving range parameters of the electric vehicle are calculated according to the parameters affecting the mileage factor and the maximum driving range parameter of the electric vehicle, and the remaining driving mileage parameter is the available mileage that the electric vehicle can continue to drive. Preferably, after determining the electrical device influence parameter I ₁ , and/or after determining the ambient temperature influence parameter I ₂ , and/or after determining the driving mode influence parameter I ₃ , according to the electrical device influence parameter I ₁ , and / or, according to the ambient temperature affecting parameter I ₂ , and / or, according to the driving mode affecting parameter I ₃ and the maximum driving range parameter S of the electric vehicle, calculate the remaining driving range parameter of the electric vehicle.

In step S505, the electric vehicle displays the parameters affecting the mileage factor and the remaining driving range parameters.

The electric vehicle displays parameters affecting the mileage factor and remaining driving range parameters, preferably, according to the electrical equipment affecting parameter I ₁ , and/or according to the ambient temperature affecting parameter I ₂ , and/or depending on the driving mode affecting the parameter I ₃ and After the maximum driving range parameter S of the electric vehicle calculates the remaining driving range parameter of the electric vehicle, the electric vehicle displays the electrical equipment influence parameter I ₁ , and/or the ambient temperature influence parameter I ₂ , and/or the driving mode influence parameter I ₃ and the remaining driving range parameters.

The electric vehicle displays the parameters affecting the mileage factor and the remaining driving range parameters are displayed through the liquid crystal display of the electric vehicle instrument, by displaying the electric vehicle to display the influence parameters of the electrical equipment, and/or the ambient temperature affecting parameters, and/or driving manner Influencing the parameters and the remaining driving range parameters, thereby increasing the amount of information displayed by the electric vehicle when displaying the driving range information, so that the driver can know in real time the mileage factor that causes the mileage change of the electric vehicle during driving, according to the influence The change of the parameters of the mileage factor adjusts the vehicle mode in a timely manner, thereby enabling the driver to reach the driving destination.

The embodiment of the driving range display method of the electric vehicle obtains the maximum driving range parameter of the electric vehicle, and then determines the influence mileage factor of the electric vehicle, and calculates the electric vehicle according to the parameter affecting the mileage factor and the maximum driving range parameter of the electric vehicle. The remaining driving range parameters are finally displayed by the electric vehicle to display the parameters affecting the mileage factor and the remaining driving range parameters, thereby improving the amount of information displayed by the electric vehicle when displaying the driving range information.

It should be noted that the steps illustrated in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer executable instructions, and, although shown in the flowchart, The steps shown or described may be performed in an order different than that herein.

The embodiment of the invention further provides a driving range display device for an electric vehicle. It should be noted that the driving range display device of the electric vehicle can be used to execute the driving range display method of the electric vehicle according to the embodiment of the present invention.

The embodiment of the invention further provides an electric vehicle, which comprises the driving range display device or the driving range display system provided by the invention.

6 is a schematic diagram of a driving range display device of an electric vehicle according to an embodiment of the present invention. As shown in FIG. 6, the driving range display device of the electric vehicle includes an acquisition unit 30, a determination unit 40, a detection unit 50, a calculation unit 60, and a display unit 70.

The obtaining unit 30 is configured to obtain a maximum driving range parameter of the electric vehicle.

The determining unit 40 is configured to determine an impact mileage factor of the electric vehicle, wherein the influence of the mileage factor is affecting the electric steam The factor of the mileage of the car.

The detecting unit 50 is configured to detect a parameter affecting the mileage factor.

The calculating unit 60 is configured to calculate a remaining driving range parameter of the electric vehicle according to the parameter affecting the mileage factor and the maximum driving range parameter of the electric vehicle.

The display unit 70 is configured to display parameters affecting the mileage factor and remaining driving range parameters.

After the obtaining unit 30 acquires the maximum driving range parameter of the electric vehicle, the acquiring unit 30 also acquires the total power of the power battery of the electric vehicle, and the calculating unit 60 performs calculation on the maximum driving range parameter and the total power of the power battery to obtain the electric vehicle. The standard energy consumption, display unit 70 displays the standard energy consumption.

The mileage factors of electric vehicles include: electrical equipment factors of electric vehicles, and/or environmental temperature factors of electric vehicles, and/or driving factors of electric vehicles. Through the determining unit 40, the influence mileage factor of the electric vehicle is determined.

Preferably, the detecting unit 50 comprises a first detecting module and a first calculating module. The first detecting module is configured to detect the traveling speed of the electric vehicle; the first calculating module is configured to perform calculation on the maximum driving range parameter and the traveling vehicle speed to obtain the total running time of the electric vehicle; the first detecting module is further configured to detect the electric driving The power parameter of the electrical equipment of the automobile; the first calculation module is further configured to perform calculation on the total driving time and the power parameter of the electric vehicle of the electric vehicle, obtain the power consumption of the electric equipment of the electric vehicle, and the standard energy consumption and the electric vehicle The power consumption of the electrical equipment is calculated and the influence parameters of the electrical equipment are obtained, wherein the electrical equipment influence parameter is a parameter for indicating the influence of the electrical equipment of the electric vehicle on the mileage of the electric vehicle.

Preferably, the detecting unit 50 further includes a second detecting module, a determining module and a second calculating module. Wherein, the second detecting module is configured to detect the temperature of the power battery of the electric vehicle; the determining module is configured to determine the discharging amount of the power battery according to the temperature of the power battery; and the second calculating module is configured to discharge the power battery and the total power battery The power is calculated to obtain an ambient temperature influence parameter, wherein the ambient temperature influence parameter is a parameter for indicating the influence of the ambient temperature of the electric vehicle on the mileage of the electric vehicle.

Before the detecting unit 50 detects the parameter affecting the mileage factor, the acquiring unit 30 is further configured to acquire the accumulated mileage parameter of the electric vehicle, wherein the accumulated driving mileage parameter is a mileage parameter of the total driving of the electric vehicle, and the accumulated driving power of the electric vehicle is acquired. The quantity parameter, wherein the accumulated driving power consumption parameter is a power consumption parameter of the electric vehicle under the accumulated driving mileage parameter; the calculating unit 60 performs calculation on the accumulated driving mileage parameter and the accumulated driving power consumption parameter to obtain the cumulative driving of the electric vehicle. The average energy consumption of the mileage; the display unit 70 displays the average energy consumption of the accumulated mileage.

Before the detecting unit 50 detects the parameter affecting the mileage factor, the obtaining unit 30 is further configured to acquire the current mileage parameter of the electric vehicle, wherein the current mileage parameter is a process in which the electric vehicle starts and stops at the current power-on. In the driving mileage parameter, the current driving power consumption parameter of the power battery of the electric vehicle is obtained, wherein the current driving power consumption parameter is the driving power consumption of the electric vehicle during the current power-on start and the current stop running. The calculation unit 60 performs calculation on the current mileage parameter and the current driving power consumption parameter, and obtains the average energy consumption of the electric vehicle in the current mileage.

Preferably, the detecting unit 50 further includes: a third calculating module. The third calculation module is configured to perform calculation on the average energy consumption of the standard energy consumption and the current mileage, and obtain the driving mode influence parameter, wherein the driving mode influence parameter is used to indicate the influence of the driving mode of the electric vehicle on the mileage of the electric vehicle. Parameter factor.

In this embodiment, the maximum driving range parameter of the electric vehicle is obtained by the obtaining unit 30, the influence mileage factor of the electric vehicle is determined by the determining unit 40, the parameter affecting the mileage factor is detected by the detecting unit 50, and the parameter affecting the mileage factor is calculated by the calculating unit 60. And the maximum driving range parameter of the electric vehicle calculates the remaining driving range parameter of the electric vehicle, and displays the parameter affecting the mileage factor and the remaining driving range parameter through the display unit 70, thereby improving the display of the electric vehicle when displaying the driving range information. The amount of information enables the driver to understand the mileage factor that causes the mileage change of the electric vehicle in the process of driving, and adjust the vehicle mode according to the change of the parameters affecting the mileage factor, so that the driver can reach the driving destination.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in a storage device by a computing device, or they may be fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A driving range display method for an electric vehicle, comprising:

Obtain the maximum driving range parameter of the electric vehicle;

Determining an impact mileage factor of the electric vehicle, wherein the impact mileage factor is a factor affecting the mileage of the electric vehicle;

Detecting the parameters affecting the mileage factor;

Calculating a remaining driving range parameter of the electric vehicle according to the parameter that affects the mileage factor and the maximum driving range parameter of the electric vehicle;

The electric vehicle displays the parameter affecting the mileage factor and the remaining driving range parameter.
The method according to claim 1, wherein the mileage factor of the electric vehicle includes: an electrical equipment factor of the electric vehicle, and/or an ambient temperature factor of the electric vehicle, and/or a driving mode of the electric vehicle factor.
The method of claim 1, wherein after obtaining the maximum range parameter of the electric vehicle, the method further comprises:

Obtaining a total amount of power of the power battery of the electric vehicle;

Performing a calculation on the maximum driving range parameter and the total power of the power battery to obtain a standard energy consumption of the electric vehicle;

The electric vehicle displays the standard energy consumption.
The method according to claim 3, wherein the detecting the parameters affecting the mileage factor comprises:

Detecting the traveling speed of the electric vehicle;

Performing a calculation on the maximum driving range parameter and the traveling vehicle speed to obtain a total driving time of the electric vehicle;

Detecting a power parameter of the electrical device of the electric vehicle;

Performing calculations on the total travel time and the power parameters of the electrical equipment of the electric vehicle to obtain power consumption of the electrical equipment of the electric vehicle;

Performing calculations on the standard energy consumption and the power consumption of the electrical equipment of the electric vehicle to obtain an electrical equipment influence parameter, wherein the electrical equipment influence parameter is used to indicate the electric appliance of the electric vehicle to the electric The parameters affected by the mileage of the car.
The method of claim 3, wherein detecting the parameters affecting the mileage factor comprises:

Detecting a temperature of a power battery of the electric vehicle;

Determining a discharge amount parameter of the power battery according to a temperature of the power battery;

Performing calculation on the discharge amount parameter of the power battery and the total power of the power battery to obtain an ambient temperature influence parameter And wherein the ambient temperature influence parameter is a parameter for indicating an influence of an ambient temperature of the electric vehicle on a mileage of the electric vehicle.
The method according to claim 1, wherein before the detecting the parameter affecting the mileage factor, the method further comprises:

Obtaining an accumulated mileage parameter of the electric vehicle, wherein the accumulated mileage parameter is a mileage parameter that the electric vehicle runs in total;

Obtaining a cumulative driving power consumption parameter of the electric vehicle, wherein the accumulated driving power consumption parameter is a power consumption parameter of the electric vehicle under the accumulated driving mileage parameter;

Performing calculations on the accumulated mileage parameter and the accumulated driving power consumption parameter to obtain an average energy consumption of the accumulated driving mileage of the electric vehicle;

The electric vehicle displays an average energy consumption of the accumulated mileage.
The method according to claim 1, wherein before the detecting the parameter affecting the mileage factor, the method further comprises:

Obtaining the current mileage parameter of the electric vehicle, wherein the current mileage parameter is a mileage parameter of the electric vehicle during a current power-on startup and a current power-off stop;

Obtaining the current driving power consumption parameter of the power battery of the electric vehicle, wherein the current driving power consumption parameter is driving power of the electric vehicle during the current power-on startup and the current power-off stop Quantity parameter

Performing calculations on the current mileage parameter and the current driving power consumption parameter to obtain an average energy consumption of the electric vehicle in the current mileage;

The electric vehicle displays the average energy consumption of the current mileage.
The method according to claim 3 or 7, wherein the detecting the parameters affecting the mileage factor comprises:

Performing a calculation on the standard energy consumption and the average energy consumption of the current mileage to obtain a driving mode influence parameter, wherein the driving mode influence parameter is used to indicate the driving manner of the electric vehicle to the electric vehicle The parameter factor of the impact of mileage.
A driving range display device for an electric vehicle, comprising:

The obtaining unit is configured to obtain a maximum driving range parameter of the electric vehicle;

a determining unit, configured to determine an impact mileage factor of the electric vehicle, wherein the impact mileage factor is a factor that affects the mileage of the electric vehicle;

a detecting unit, configured to detect the parameter that affects the mileage factor;

a calculating unit, configured to calculate a remaining driving range parameter of the electric vehicle according to the parameter that affects the mileage factor and the maximum driving range parameter of the electric vehicle;

a display unit, configured to display the parameter affecting the mileage factor and the remaining driving range parameter.
The apparatus according to claim 9, wherein the mileage factor of the electric vehicle includes: an electrical equipment factor of the electric vehicle, and/or an ambient temperature factor of the electric vehicle, and/or a driving mode of the electric vehicle factor.
The apparatus according to claim 9, wherein after the obtaining unit acquires a maximum driving range parameter of the electric vehicle, the acquiring unit further acquires a total amount of power of the power battery of the electric vehicle, the calculating unit Performing a calculation on the maximum driving range parameter and the total power of the power battery to obtain a standard energy consumption of the electric vehicle, and the display unit displays the standard energy consumption.
The apparatus according to claim 11, wherein the detecting unit comprises a first detecting module and a first calculating module, wherein

The first detecting module is configured to detect a traveling speed of the electric vehicle;

The first calculating module is configured to perform calculation on the maximum driving range parameter and the traveling vehicle speed to obtain a total driving time of the electric vehicle;

The first detecting module is further configured to detect a power parameter of the electrical device of the electric vehicle;

The first calculation module is further configured to perform calculation on a total time of the driving and a power parameter of the electric device of the electric vehicle, to obtain power consumption of the electric device of the electric vehicle, and the standard energy consumption and the The power consumption of the electrical equipment of the electric vehicle is calculated, and the electrical equipment influence parameter is obtained, wherein the electrical equipment influence parameter is a parameter for indicating the influence of the electric equipment of the electric vehicle on the mileage of the electric vehicle.
The apparatus according to claim 11, wherein the detecting unit further comprises a second detecting module, a determining module and a second calculating module, wherein

The second detecting module is configured to detect a temperature of a power battery of the electric vehicle;

The determining module is configured to determine a discharge amount of the power battery according to a temperature of the power battery;

The second calculation module is configured to perform calculation on the discharge amount of the power battery and the total power of the power battery to obtain an ambient temperature influence parameter, wherein the ambient temperature influence parameter is used to represent the electric vehicle A parameter of the influence of ambient temperature on the mileage of the electric vehicle.
The apparatus according to claim 9, wherein before said detecting unit detects a parameter affecting the mileage factor,

The acquiring unit is further configured to acquire an accumulated driving mileage parameter of the electric vehicle, where the accumulated driving mileage parameter is a mileage parameter of the total driving of the electric vehicle, and acquires an accumulated driving power consumption parameter of the electric vehicle, where The accumulated driving power consumption parameter is a power consumption parameter of the electric vehicle under the accumulated driving mileage parameter;

The calculating unit performs calculation on the accumulated driving mileage parameter and the accumulated driving power consumption parameter to obtain an average energy consumption of the accumulated driving mileage of the electric vehicle;

The display unit displays an average energy consumption of the accumulated mileage.
The apparatus according to claim 9, wherein before said detecting unit detects said parameter affecting the mileage factor,

The obtaining unit is further configured to acquire the current mileage parameter of the electric vehicle, wherein the current mileage parameter is a mileage parameter of the electric vehicle during a current power-on and current stop driving, Obtaining the current driving power consumption parameter of the power battery of the electric vehicle, wherein the current driving power consumption parameter is the driving power consumption of the electric vehicle during the current power-on and current stop driving parameter;

The calculating unit performs calculation on the current mileage parameter and the current driving power consumption parameter to obtain an average energy consumption of the electric vehicle in the current driving mileage.
The apparatus according to claim 11 or 15, wherein the detecting unit further comprises: a third calculating module, wherein

The third calculation module is configured to perform calculation on the average energy consumption of the standard energy consumption and the current mileage to obtain a driving mode influence parameter, wherein the driving mode influence parameter is used to represent the electric vehicle The parameter factor of the driving style on the mileage of the electric vehicle.
A driving range display system for an electric vehicle, comprising:

a vehicle controller for obtaining a maximum driving range parameter of the electric vehicle, determining an impact mileage factor of the electric vehicle, wherein the impact mileage factor is a factor affecting the driving mileage of the electric vehicle, and detecting the impact mileage a parameter of the factor, calculating a remaining driving range parameter of the electric vehicle according to the parameter affecting the mileage factor and the maximum driving range parameter of the electric vehicle;

a display for displaying the parameter affecting the mileage factor and the remaining driving range parameter.