KR20130047814A - Method for providing ecological driving index - Google Patents

Abstract

PURPOSE: A supply method of an environmentally-friendly driving index is provided to reduce the fuel when driving a car and to evaluate a level of an environmentally-friendly driving which reduces the discharge of exhaust gas. CONSTITUTION: Driving time, speed, and driving fuel consumption of a vehicle are detected, and a driving average speed is calculated. Standard fuel consumption expected while driving at an average speed during driving time is determined by a standard of fuel efficiency. Environmentally-friendly driving index is determined based on the driving fuel consumption and the standard fuel consumption. The environmentally-friendly driving index is displayed on a display device. [Reference numerals] (200) Standard condition; (202) Standard constant-speed fuel efficiency according to speed; (204) Standard stop fuel consumption; (206) Reference fuel efficiency; (210) Compatibility condition; (212) Atmosphere temperature measurement data; (S300) Measure driving time, speed, and fuel consumption during driving; (S302) Measure driving time, speed, and fuel consumption during idling; (S304) Detect driving conditions; (S306) Select data based on compatibility conditions; (S308) Compensate an affect of atmosphere temperature; (S310) Calculate converted driving fuel consumption; (S312) Calculate reference fuel consumption; (S314) Calculate an environmentally-friendly driving index

Description

How to provide eco-friendly driving index {Method for Providing Ecological Driving Index}

The present invention relates to a method for analyzing and displaying measurement data, and more particularly, to a method for generating and displaying vehicle driving information from data obtained from sensors in a vehicle.

Regardless of the type of energy sources such as gasoline, diesel, LPG, electricity, etc., the energy consumed while driving the vehicle is depleted, and the economic burden is gradually increasing. In addition, in the process of consuming or producing energy, harmful exhaust gases such as greenhouse gases are generated in proportion to the amount of energy, thereby causing global warming to become a serious problem. Entering the 2000s, as one of the countermeasures for the developed countries, the government is promoting the spread of eco-friendly driving with various and powerful means. Eco-friendly driving is a term that refers to a driving technology or a vehicle management method that can reduce fuel, energy and harmful exhaust gas of a vehicle, and is also referred to as 'economic driving' or 'echo driving'. However, despite the efforts of governments, it is not easy to change the driving habits of individuals, and there is a feeling of refusal to drive in a somewhat frustrating way, so eco-friendly driving is rarely spreading. .

To overcome this problem, one of the emerging solutions is to use a method that can interest the driver like a game. However, for this purpose, it is essential to compare the driver's level of eco-friendly driving with other drivers. At present, there is no standardized indicator for eco-level driving level evaluation. Accordingly, by designating and digitizing several types of operation contrary to eco-friendly operation and adding and adding weight factors to them, it is possible to calculate the eco-friendly operation index or monitor the efficiency status of the engine and transmission. The way of displaying the driving status has been suggested. However, there is insufficient evidence on how linearly these eco-friendly driving indexes or conditions are in line with fuel savings and how consistent they are, and the quantification of driving modes and the assignment of weighting factors are subjective and arbitrary. In addition, the index has not been standardized or generalized because there are problems such that the index does not have a characteristic of physical quantity easily understood by the driver.

The present invention is to solve such a problem, to set the fuel consumption standards in the standard conditions according to the driving speed, so as to evaluate the level of eco-friendly driving to save fuel and reduce harmful emissions when driving a vehicle, Time, speed, fuel consumption and operating conditions of the vehicle, the fuel consumption is estimated based on the fuel consumption standard at the average operating speed, and the fuel consumption is calculated based on the standard conditions. By determining and providing an eco-friendly driving index that is not influenced by the situation and the air temperature, the driver can easily understand and accept the amount of fuel wasted by uneconomical driving, and quantitatively evaluate the driver's eco-friendly driving level. , Interest in eco-friendly driving through comparison, competition, awards, etc. It is a technical task to provide a method for providing an eco-friendly operation index that can serve as a major factor in spreading eco-friendly operation.

The environmentally friendly driving index providing method of the present invention for achieving the above technical problem is implemented in an in-vehicle system having a memory for storing the fuel economy reference including the constant fuel economy data for each driving speed in the driving state of the vehicle. First, (a) detecting the running time, speed, and fuel consumption of the vehicle, calculating the average driving speed, and calculating the standard fuel consumption expected when driving at a constant speed at the driving average speed during the driving time. Decide by And (b) determining an eco-friendly driving index based on the operating fuel consumption and the reference fuel consumption. Finally, (c) the eco-friendly driving index is displayed on the display device.

In one embodiment, the vehicle is provided with a display device for displaying the eco-friendly driving index, and in step (c) the eco-friendly driving index is displayed on the display device. However, in another embodiment, the vehicle includes a communication unit for performing data communication with an external display device, and in step (c), the eco-friendly driving index information is transmitted to the external display device.

In a preferred embodiment, the eco-friendly driving index is determined by the ratio of the running fuel consumption and the reference fuel consumption.

In a preferred embodiment, the fuel consumption criterion includes reference stop fuel consumption data indicating a reference fuel consumption rate at stop along with the constant fuel economy data for each traveling speed. In this case, in the step (a), the driving time, the speed, the fuel consumption amount, the stopping time and the stop fuel consumption amount in the running state of the vehicle are detected, and The standard stop fuel consumption corresponding to the stop time is determined together with the standard constant fuel consumption corresponding to the driving average speed, and the reference fuel consumption is determined by summing the standard constant fuel consumption and the reference stop fuel consumption, and the driving fuel consumption The fuel consumption is determined based on the stationary fuel consumption.

In a preferred embodiment, the fuel economy criterion is set as a measured value under predetermined standard conditions. In an embodiment, the step (a) may include: (a1) detecting a driving condition of the vehicle; And (a2) if the driving condition is different from the standard condition, converting the driving fuel consumption amount into a value in the standard condition according to a predetermined rule and correcting the converted operating fuel consumption amount. In the step (b), the eco-friendly driving index is determined based on the converted fuel consumption and the reference fuel consumption. However, in another embodiment, the step (a) is (a1) detecting a driving condition of the vehicle; And (a2) excluding at least a part of the detected data when the operation condition is different from the standard condition.

In a preferred embodiment, the eco-friendly driving index is calculated separately for a plurality of time intervals, and a weighted average of the eco-friendly driving indices calculated for the plurality of time intervals is calculated for the overall index for the entire section.

The fuel economy criteria may be accumulated and stored in a driving process after the vehicle is shipped. In this case, the fuel economy criteria may be generated by modifying the constant fuel consumption data and the standard stop fuel consumption data that are detected and accumulated during the driving of the vehicle to induce eco-friendly driving.

When the eco-friendly driving index is calculated using the method proposed in the present invention, the subjective or arbitrary characteristics are excluded and the eco-friendly driving index is displayed by the fuel amount itself. You'll know if you're saving fuel or how much more fuel you're using. In addition, regardless of the driver's level of eco-friendly driving itself, the influence of air temperature and traffic conditions on fuel efficiency can be minimized by using the results of many past studies. It is suitable for use in safe driving training or license examinations currently under consideration in Europe, and it can promote competition and interest in eco-friendly driving through evaluation, comparison and awards. It will be able to play a major role in spreading the market, and it will be able to provide a suitable means for insurance products that differentiate the premium according to the driving tendency to be implemented in the future.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings,
1 is a block diagram showing an electrical configuration of a vehicle suitable for implementing the present invention;
2 is a flowchart illustrating a process of calculating an eco-friendly driving index of the program illustrated in FIG. 1;
3 is a graph illustrating an exemplary process of generating a standard constant fuel economy function by curve fitting;
4 shows an example of the reference stop fuel consumption rate;
5 is a graph illustrating a speed profile by detecting a driving sample of an environmentally friendly driving expert who traveled in a section of about 20 km distance including a downtown and an intercity road; And
FIG. 6 is a graph illustrating an eco-friendly driving index calculated for five time intervals at five minute intervals by applying the method of the present invention to the sample data of FIG. 5.

Referring to FIG. 1, a vehicle suitable for implementing a method for providing an eco-friendly driving index according to a preferred embodiment of the present invention includes a plurality of sensors 100 to 110, a microprocessor 120, a memory 130, The display unit 140 is installed. In one embodiment, the microprocessor 120 and the memory 130 is embedded in the vehicle, the display unit 140 is an instrument panel attached to the dashboard of the vehicle. However, in another embodiment, the eco-friendly driving index providing system may be implemented by a terminal that can be attached to or removed from the vehicle, in which case the microprocessor 120, the memory 130, and the display unit 140 is It may be provided in the terminal.

The sensors 100-110 include a speed sensor 100 and a fuel gauge 102. The fuel gauge 102 may be a flow rate sensor or a pressure sensor installed in the fuel tank, or may be a flow rate sensor installed in the fuel injector. In addition, the microprocessor 120 may determine fuel consumption by receiving fuel injection amount data from the injector of the engine from the ECU 116 of the vehicle. Meanwhile, the transmission sensor 104, the vehicle weight sensor 106, the braking sensor 108, and the atmospheric temperature sensor 110 may be additionally provided in the vehicle.

The microprocessor 120 may drive and execute the eco-friendly driving index calculation program 122 according to the present invention.

In a preferred embodiment, memory 130 includes ROM 132, RAM 134, and flash memory 136. The ROM 132 stores an eco-friendly driving index calculation program 122, and the RAM 134 stores temporary data generated during a program operation process. The flash memory 136 stores data used by the eco-friendly driving index calculation program 122 to calculate the eco-friendly driving index. Such data may include fuel economy-based data including standard constant speed fuel consumption data and standard stop fuel consumption data for each speed. Include. In addition, the ROM 132 or the flash memory 136 stores standard condition data used for deriving fuel economy reference data. In addition, the ROM 132 or the flash memory 136 stores the criterion data for the suitability determination elements described below.

The display unit 140 may be implemented by, for example, a liquid crystal display (LCD) device.

Referring to FIG. 2, as mentioned above, the fuel consumption reference 206 data including the standard constant speed fuel consumption 202 and the standard stop fuel consumption rate 204 data for each speed are set and stored in the memory 130. In addition, the memory 130 stores data on the suitability criteria 210 for the suitability determination elements of the detection data.

In this state, when the vehicle is turned on, the eco-friendly driving index calculation program 122 continuously receives the driving time, the traveling speed, and the fuel consumption through the sensors (step 300). In addition, the program 122 receives the stop time and the fuel consumption amount through the sensor when the vehicle is stopped while the vehicle is turned on (step 302). In addition, the program 122 receives data on driving conditions of the vehicle such as air temperature and weight (step 304).

If data is detected, the program 122 may select some data by excluding some data based on the appropriate condition data stored in the memory 130 (step 306). Subsequently, when the atmospheric temperature is different from the standard condition 210, the influence of the atmospheric temperature may be corrected (step 308).

Subsequently, the program 122 calculates the converted operating fuel consumption amount based on the fuel consumption data or fuel consumption data after the atmospheric temperature is corrected (step 310).

On the other hand, when the program 122 receives the vehicle's driving speed and stop time data, the program 122 calculates the reference fuel consumption with reference to the fuel consumption reference 206 set in advance (step 300).

Finally, the program 122 calculates the eco-friendly driving index based on the ratio of the converted fuel consumption and the reference fuel consumption (step 314).

In a preferred embodiment, the fuel economy reference 206 data including the standard constant fuel economy 202 and the standard stop fuel consumption 204 data for each speed may be stored and stored in the memory 130 when the vehicle is shipped. . However, in the modified embodiment, such data may be accumulated during the driving of the vehicle. As a method for calculating the standard constant fuel economy 202 and the standard stop fuel consumption rate 204 data for each speed in a vehicle, for example, the one described in the Applicant's Patent Publication No. 2011-0017220 can be used.

This will be described in detail below.

The amount of fuel consumed by the driver when driving the car from the starting point to the starting point varies depending on how the driver operates, and depending on the vehicle management conditions such as tire air pressure, the state of consumables such as engine oil, and the state of parts such as oxygen sensors. It will also make a difference. For eco-friendly driving, avoid sudden acceleration, unnecessary acceleration, unnecessary frequent brakes, overspeed, maintain the constant speed or government load, not change gears late, reduce the use of air conditioning and heating, and maintain vehicle management properly. You need a variety of ways of driving. Since the common goal is to reduce fuel consumption by the same starting point to the destination point, it is necessary to index the fuel consumption itself.

In addition, even if the same level of eco-friendly driving is applied, fuel economy is different for each vehicle type, fuel efficiency is changed according to the atmospheric temperature or the end slope of the road, and the fuel economy is also changed depending on the driving speed, so correct this by appropriate method. It is necessary to ensure that the impact is minimized.

The constant speed fuel consumption characteristics of each vehicle can be calculated by driving the vehicle at constant speed at various stages before the vehicle is released, and dividing the travel distance by the amount of fuel consumed.The speed and fuel consumption of the vehicle during normal driving It is also possible to calculate the constant fuel economy for each speed by monitoring the data. In addition, it is necessary to specify the standard conditions so that the same conditions apply to the various models, and to test in accordance with the standard conditions. Standard conditions are required for the same results to be repeated for repeated tests, such as temperature, preliminary operation, loading or boarding weight conditions, tire pressure, and the condition of parts affecting fuel economy.

First, the standard constant fuel economy is calculated as shown in Equation 1 below.

Here, FEt (Vi) denotes a 'standard constant fuel economy' calculated under standard conditions and speeds Vi, and Vi denotes a constant fuel consumption measurement speed, that is, an average speed in a speed section for measuring constant fuel consumption or a speed at one point in time. Indicates. Lt (Vi) represents the moving distance used for the constant fuel economy measurement at the speed Vi, and Qt (Vi) represents the fuel consumption amount detected in the constant fuel economy measurement at the speed Vi.

The standard constant fuel economy can be used to calculate the continuous constant fuel economy FEt (Vi) obtained as above in the form of continuous function FEt (V) by using the curve fitting method. desirable. 3 shows an example of such curve fitting.

On the other hand, since the moving distance is zero at stop, FEt (0) = 0, and it is difficult to use the exponential calculation. Therefore, if the fuel consumption status at stop is included in the exponent, Fuel consumption rate can be measured and used. In this specification, this fuel consumption rate is called "standard stop fuel consumption rate" and is represented by FIRt.

In determining the environmentally friendly operation index, the above-described standard constant fuel consumption or standard stop fuel consumption ratio may be used as it is, but intentionally penalizing penalties for operation against eco-friendly operation may be considered. For example, excessive speeds exceeding a certain reference speed may result in unnecessary fuel waste. Therefore, the fuel economy at the reference speed may be maintained at a higher speed, or if the stop time is exceeded, the standard stop fuel consumption rate may be exceeded. Consider changing it to zero. The constant fuel consumption and stationary fuel consumption rate determined by such a modification are called "fuel-based fuel consumption" in the present invention.

For example, the 'reference fuel economy' FEr (V) calculated as a fuel economy criterion for the standard constant fuel economy FEt (V) may be calculated by Equation 2.

Here, F1 is a function applied to the standard constant fuel economy, and may be set as shown in Equation 3, for example.

That is, in one embodiment, F1 is set to "1" when the vehicle speed is 110 km / h or less, and F1 is a standard constant speed at a speed of 110 km / h when the vehicle speed exceeds 110 km / h. It can be set to the inverse of fuel economy. In this case, the reference fuel economy FEr (V) is equal to the standard constant fuel economy FEt (V) when the vehicle speed is 110 km / h or less, as shown in equation (4), and the vehicle speed exceeds 110 km / h Is set to "1".

On the other hand, the 'standard stop fuel consumption rate' FIRr calculated as the fuel economy standard in the standard stop fuel consumption rate FIRt may be calculated by Equation 5.

Here, F2 is a function applied to the standard stop fuel consumption rate, for example, can be set as shown in equation (6). An example of the reference stop fuel consumption rate is shown in FIG. 4.

That is, in one embodiment, F2 is set to "1" when the vehicle stop time ts is 100 seconds or less, and F2 is set to "0" when the vehicle stop time ts exceeds 100 seconds. Can be. In this case, the reference stop fuel consumption rate FIRr is equal to the standard stop fuel consumption rate FIRt when the vehicle stop time ts is 100 seconds or less, as shown in Equation 7, and the stop time ts exceeds 100 seconds. In this case, it is set to "0".

In evaluating the driver's environmentally friendly driving level, the driving time, speed, and fuel consumption during driving are measured, and the stopping time and fuel consumption during the stopping are measured (step 300 and step 302). In this case, the driving distance may be calculated by multiplying the driving time by the speed, and the fuel economy may be calculated together by dividing the driving distance by the fuel consumption.

In particular, in order to properly evaluate the level of eco-friendly driving, it is necessary to detect operating conditions such as air temperature conditions during operation and weight increase due to occupants or payloads (step 304), and reflect them.

On the other hand, if the condition is difficult to determine whether the environmentally friendly operation state, it is necessary to withhold the environmentally friendly operation index detection, it is determined whether or not to detect the environmentally friendly operation index according to the preset suitable conditions (step 306). For example, the fuel efficiency characteristics during cold running are different depending on the elapsed time after turning off the engine, the elapsed time after starting, the atmospheric temperature, etc., so that it is very difficult to test the fuel consumption beforehand to model the fuel economy. The exclusion of these factors does not pose a critical problem in evaluating the driver's level of environmentally friendly operation. Therefore, in practical terms, it is possible to set the appropriate condition by detecting the environmentally friendly operation index only after the cold state. Specific conformance conditions may be stored in the nonvolatile memory, and may be changed through memory exchange or data communication even after leaving the factory.

Factors that have a direct impact on fuel economy, such as air temperature, and which drivers cannot change through eco-friendly operation, need to model their effects and convert the detected fuel consumption as if operating under standard conditions. (1st step).

Equation (8) is a fuel consumption amount (hereinafter referred to as 'converted operating fuel consumption amount') Qgc, which is converted to a standard condition from the fuel consumption amount Qg measured at the step 310, and the fuel consumption amount Gs measured at a stop. Shows an example of obtaining a Qsc fuel consumption at stop (hereinafter referred to as converted stop fuel consumption) converted into standard conditions.

Here, F3 is a function that is multiplied to convert the fuel consumption measured during driving to fuel consumption at standard conditions, and F4 is a function that is multiplied to convert the fuel consumption measured at stop to fuel consumption at standard conditions. The atmospheric temperature may be modeled as in Equation 9.

Here, a to d are constants determined through experiments in advance to reflect the influence of the atmospheric temperature on the fuel economy, T denotes the atmospheric temperature at the time of driving, and Tt is the atmospheric temperature determined as the standard condition. If there are additional operating conditions to reflect in addition to the atmospheric temperature, correct them by adding a function to be multiplied or added in the same way.

In step 314, the Ecological Driving Index EDI is calculated.

When driving data is measured for a specific time period (eg j-th section), the EDIj eco-friendly driving index EDIj for the corresponding section is the actual fuel for the constant fuel consumption (Qrj) It is defined as the ratio of converted fuel consumption (Qcj) in terms of consumption.

In this case, the converted fuel consumption Qcj and the constant speed fuel consumption Qrj can be obtained by Equation (11).

Here, Qgcj is the fuel consumption which converted the amount of fuel consumed in the running portion of the j-th section into the standard state, Qscj is the fuel consumption which converted the amount of fuel consumed in the stationary portion of the j-th section into the standard state, and Lj is the j-th section. The distance traveled, Vj is the average speed of the running portion in the j-th section, k is the serial number for the stop occurring in the j-th section, and tjk is the stop time of the k-th stop in the j-th section.

In addition to constantly updating the eco-friendly driving index, it is desirable to calculate and display the cumulative eco-driving operation index for the entire operation from the time of starting the engine to the time of starting the engine, and also for a considerable time of operation. Therefore, the eco-friendly driving index EDIj calculated for each section is calculated using the moving average method to calculate the eco-friendly driving index (EDI) for several time sections. In this case, rather than simply averaging the eco-friendly driving index calculated for the above time periods over the various time periods, the weighted average is calculated by weighting the constant fuel consumption for each time interval as shown in Equation 12, It is preferable to indicate the ratio of the total fuel consumption converted to the standard state to the ideal total fuel consumption for the interval.

In one embodiment, all the fuel consumption described above can be determined based on a simple fuel injection amount input to the engine, while in another embodiment, the effective fuel consumption amount displayed after detecting the energy consumption state of the vehicle is converted into the fuel amount. May be used instead of fuel injection. An example of such a method of calculating the effective fuel consumption is described in the Applicant's Patent No. 903590, and the description of the above patent document is incorporated in the present specification through the citation of the patent number and the duplicated description is omitted. In this way, when the effective fuel consumption is used, the influence of the road longitudinal gradient can also be minimized, so that more suitable results can be obtained.

FIG. 5 illustrates a speed profile by detecting a driving sample of an environmentally friendly driving expert who travels in a section of about 20 km including a city and an intercity road, and FIG. 6 shows a 5 minute interval by applying the method of the present invention to this sample data. As shown, the eco-friendly driving index is calculated for five time intervals. In FIG. 6, the eco-friendly driving index calculated using the fuel injection amount is slightly different from the index in other sections in the average speed of 48 km / h. This section is the result of the section consisting of an uphill road as a whole. On the other hand, it can be seen that the eco-friendly driving index calculated using the effective fuel consumption did not differ from other sections in this section. However, even when the fuel injection amount is used, this problem can be prevented from appearing seriously by enlarging and displaying the entire moving average target time, so that it can have practically sufficient validity.

In addition, the method disclosed in the present invention calculates and averages the eco-friendly driving index of many drivers, and compares the current eco-friendly driving index of the driver with the driver's average eco-driving index, the driver himself is now a few percent compared to other drivers. It's easy to see if you're driving fuel-saving, or what percentage of fuel you're wasting, giving you a more intuitive understanding of the driver's green driving conditions. The driver's average eco-driving index may be stored and stored in a memory at the time of vehicle shipment in the state of securing and accumulating before the vehicle is shipped, or may be secured or updated later through data communication.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

For example, although the present invention has been described with reference to a fuel vehicle using hydrocarbon fuel as a power source, the present invention can be applied to an electric vehicle using electric energy of a chemical cell or a fuel cell as a power source. In the present specification and the appended claims, it should be noted that "fuel" includes electrical energy, and the term "fuel fuel consumption" is used in the sense including the electrical energy consumption rate.

On the other hand, the system of the present invention can be embedded in the vehicle, in this case, the instrument panel attached to the dashboard of the vehicle can act as a display unit. However, in a modified embodiment, the eco-friendly driving index providing system may be implemented by a terminal that can be attached to or removed from the vehicle, such a terminal may be a navigation device, for example. That is, the eco-friendly driving index providing program of the present invention can be stored and executed in the navigation device. In this case, the terminal is connected to the diagnostic connector connecting connector installed on the lower side of the dashboard to receive and operate various sensor data from the microprocessor of the vehicle.

On the other hand, in the above-described embodiment, when the driving condition is different from the standard condition, the fuel consumption is converted to the value in the standard condition by a conversion formula. However, in another embodiment, the lookup table stored in the memory is changed. Conversion can also be performed by reference.

Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

Claims (10)

In a vehicle having a memory for storing the fuel economy reference including the constant speed fuel economy data for each driving speed in the running state of the vehicle,
(a) detecting the driving time, speed, and fuel consumption of the vehicle, calculating the average driving speed, and calculating the standard fuel consumption expected when driving at a constant speed from the driving average speed during the driving time. Determining;
(b) determining an eco-friendly driving index based on the running fuel consumption and the reference fuel consumption; And
(c) allowing the eco-friendly driving index to be displayed on a display device;
Eco-friendly driving index providing method comprising a. The method according to claim 1, wherein the vehicle is provided with a display device for displaying the eco-friendly driving index,
In the step (c), the environmentally friendly operation index providing method displayed on the display device. The method according to claim 1, wherein the vehicle is provided with a communication unit for performing data communication with an external display device,
The eco-friendly driving index providing method for transmitting the eco-friendly driving index information to the external display device in step (c). The method of claim 1 or 2, wherein in the step (b), the eco-friendly driving index providing method is to determine the eco-friendly driving index by the ratio of the fuel consumption and the reference fuel consumption. The fuel consumption criterion according to claim 4, wherein the fuel consumption standard includes reference stop fuel consumption rate data indicating a reference fuel consumption rate at stop, together with the constant fuel consumption data for each traveling speed,
In the step (a), the running time, the speed, the running fuel consumption amount in the running state of the vehicle, the stopping time in the stop state, the stop fuel consumption amount is detected, and the running average speed based on the fuel consumption criteria. The standard stop fuel consumption corresponding to the stop time is determined together with the standard constant fuel consumption corresponding to the sum, the standard fuel consumption and the standard stop fuel consumption are summed to determine the reference fuel consumption, and the driving fuel consumption and the stop Eco-friendly driving index providing method for determining the operating fuel consumption based on fuel consumption. The fuel consumption criterion according to claim 5, wherein the fuel consumption criterion is set as a measured value under predetermined standard conditions.
Step (a)
(a1) detecting a driving condition of the vehicle; And
(a2) if the driving condition is different from the standard condition, converting the running fuel consumption amount into a value in the standard condition according to a predetermined rule and correcting the converted operating fuel consumption amount;
Including;
In the step (b), the eco-friendly operation index providing method for determining the eco-friendly operation index based on the converted fuel consumption and the reference fuel consumption. The fuel consumption criterion according to claim 5, wherein the fuel consumption criterion is set as a measured value under predetermined standard conditions.
Step (a)
(a1) detecting a driving condition of the vehicle; And
(a2) when the operation condition is different from the standard condition, excluding at least a part of the detected data;
Eco-friendly driving index providing method comprising a. The method of claim 1, wherein the eco-friendly driving index is calculated separately for a plurality of time intervals, and a weighted average of the eco-friendly driving indexes calculated for the plurality of time intervals provides an eco-friendly driving index for calculating a comprehensive index for the entire section. Way. The method of claim 5, wherein the fuel economy standard is accumulated and stored in a driving process after the vehicle is shipped. The method of claim 9, wherein the constant fuel consumption data and the standard stop fuel consumption data that are detected and accumulated in the driving process of the vehicle are modified to induce eco-friendly driving to generate the fuel consumption criteria.

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