CN102514571B - Driver driving economy evaluation system and method - Google Patents

Abstract

The embodiment of the invention discloses a driver's driving economy evaluation system and method, which solves the problem that the existing fuel economy evaluation method cannot evaluate the influence of the driver's actual operation on the vehicle fuel economy. The system includes an acquisition unit and a central processing unit, the acquisition unit includes a first acquisition unit for acquiring fuel consumption value influence information and a second acquisition unit for acquiring actual instantaneous fuel consumption value, the central processing unit includes storage of fuel consumption value influence information, The vehicle condition storage unit of the corresponding relationship between the most economical vehicle state and the most economical instantaneous fuel consumption value calculates the most corresponding to the fuel consumption value impact information acquired by the first acquisition unit according to the corresponding relationship stored in the vehicle condition storage unit. The first calculation unit for the economical instantaneous fuel consumption value compares the actual instantaneous fuel consumption value with the most economical instantaneous fuel consumption value to obtain an economical level comparison unit for current driving.

Description

Driver's driving economy evaluation system and method

technical field

The invention relates to the technical field of vehicle driving, in particular to a driver's driving economy evaluation system and method.

Background technique

Vehicle fuel economy is an important evaluation index of vehicle performance and driving ability. The requirements of modern society for saving energy and reducing the greenhouse effect of energy consumption make improving vehicle fuel economy a common goal pursued by car consumers and manufacturers. . Vehicle fuel economy is generally evaluated by fuel consumption. As we all know, the configuration of the vehicle power system and the driver's operating habits will affect the fuel consumption of the vehicle, that is, affect the fuel economy of the vehicle.

There are many fuel economy evaluation methods such as driving test method and constant-speed fuel consumption test method. Taking the constant-speed fuel consumption test method as an example, the specific method is to choose a section of flat road without slope, and use the highest grade of the car at different speeds. After driving this distance at a constant speed (one point can be taken every 10km/h), the engine fuel consumption message is read through the Controller Area Network (CAN) bus, and the processor calculates it based on the fuel consumption per 100 kilometers. The formula calculates the fuel consumption per 100 kilometers of the engine and displays it on the instrument panel; take the average value for one round trip to obtain the fuel consumption per 100 kilometers at different speeds. By comparing the fuel consumption of vehicles with different power system configurations under the same conditions, it can be known which configuration of the vehicle has higher fuel economy.

However, the above-mentioned existing fuel economy evaluation methods all evaluate the influence of the power system configuration of the vehicle itself on the fuel economy of the vehicle without the influence of natural conditions such as roads and weather, but cannot evaluate the actual operation of the driver. Effect on vehicle fuel economy.

Contents of the invention

In view of this, the purpose of the present invention is to provide a driver's driving economy evaluation system and method to solve the problem that the existing fuel economy evaluation methods cannot evaluate the influence of the driver's actual operation on the vehicle's fuel economy.

To achieve the above object, the present invention provides the following solutions:

A driver's driving economy evaluation system, comprising: an acquisition unit for acquiring driving information and a central processing unit;

The acquisition unit includes: a first acquisition unit for acquiring fuel consumption value influence information and a second acquisition unit for acquiring actual instantaneous fuel consumption value;

The central processing unit includes:

A vehicle condition storage unit that stores the relationship between fuel consumption value impact information, the most economical vehicle state and the most economical instantaneous fuel consumption value;

A first calculation unit that calculates the most economical instantaneous fuel consumption value corresponding to the fuel consumption value impact information acquired by the first acquisition unit according to the correspondence stored in the vehicle condition storage unit;

A comparison unit for comparing the actual instantaneous fuel consumption value with the most economical instantaneous fuel consumption value to obtain the current driving economy level;

The first acquisition unit includes a vehicle speed acquisition unit for acquiring vehicle speed information;

The first output end of the vehicle speed acquisition unit is connected to the first input end of the first calculation unit; the first output end of the vehicle condition storage unit is connected to the second input end of the first calculation unit; the The first output terminal of the first calculation unit is connected to the first input terminal of the comparison unit; the output terminal of the second acquisition unit is connected to the second input terminal of the comparison unit.

Preferably, the first acquisition unit further includes a road condition information acquisition unit, the road condition information acquisition unit includes a road condition information acquisition unit that collects road condition information of the current driving section, and a road condition information that converts the road condition information into digital road condition information conversion unit;

The output end of the road condition information collection unit is connected to the input end of the road condition information conversion unit, and the output end of the road condition information conversion unit is connected to the second input end of the first calculation unit.

Preferably, the central processing unit further includes: in the corresponding relationship stored in the vehicle condition storage unit, searching for the fuel consumption value influence information acquired simultaneously with the first acquisition unit and the information calculated by the first calculation unit The most economical vehicle state corresponding to the most economical instantaneous fuel consumption value, and a second calculation unit that calculates the driving advice information representing the most economical driving mode according to the found most economical vehicle state;

The first input end of the second calculation unit is connected to the second output end of the vehicle condition storage unit, the second input end of the second calculation unit is connected to the second output end of the vehicle speed acquisition unit, and the The third output terminal of the second calculation unit is connected to the second output terminal of the first calculation unit.

Preferably, the system further includes a display unit for displaying the economical level of the current driving and/or the driving advice information;

The first input terminal of the display unit is connected to the first output terminal of the comparison unit, and the second input terminal of the display unit is connected to the first output terminal of the second calculation unit.

Preferably, the system further includes an evaluation result storage unit that stores the current driving economy level and/or the driving advice information;

The first input end of the evaluation result storage unit is connected to the second output end of the comparison unit, and the second input end of the evaluation result storage unit is connected to the second output end of the second calculation unit.

Preferably, the system or the central processing unit further includes: a personal information storage unit storing the personal information of the driver who has the right to drive the vehicle, an input unit for obtaining the personal information of the driver to be verified, and verifying the driver's personal information to be verified. personal information of the driver, triggering the verification unit of the engine and/or the acquisition unit when the personal information of the driver to be verified is consistent with the personal information of the driver authorized to drive the vehicle;

The first input end of the verification unit is connected to the output end of the personal information storage unit, the second input end of the verification unit is connected to the output end of the input unit, and the output end of the verification unit is connected to the Get the input connections of the cell.

A driver's driving economy evaluation method, comprising the steps of:

Acquiring driving information; the driving information includes fuel consumption value influence information and actual instantaneous fuel consumption value, and the fuel consumption value influence information includes vehicle speed information;

Calculate the most economical instantaneous fuel consumption value corresponding to the acquired fuel consumption value impact information according to the fuel consumption value impact information, the most economical vehicle state, and the most economical instantaneous fuel consumption value;

The most economical instantaneous fuel consumption value is compared with the actual instantaneous fuel consumption value to obtain the current driving economy level.

Preferably, the fuel consumption value impact information also includes road condition information.

Preferably, after obtaining the current driving economy level, it further includes: displaying and/or storing the current driving economy level;

After the calculation of the most economical instantaneous fuel consumption value of the vehicle, it also includes:

According to the correspondence between the fuel consumption value impact information, the most economical vehicle state, and the most economical instantaneous fuel consumption value, the search is simultaneously corresponding to the obtained fuel consumption value impact information and the calculated most economical instantaneous fuel consumption value The most economical vehicle state;

Back-calculating the driving advice information representing the most economical driving mode according to the found most economical vehicle state;

Displaying and/or storing the driving advice information.

Preferably, it is characterized in that, before said obtaining driving information, it also includes:

Pre-store the personal information of at least one driver authorized to drive the vehicle;

Obtain the personal information of the driver to be verified and verify whether the personal information of the driver to be verified is consistent with the personal information of the driver who has the right to drive the vehicle, if yes, execute the acquisition of driving information, otherwise prompt an error .

It can be seen from the above technical solutions that the driver’s driving economy evaluation system provided by the present invention obtains the fuel consumption value influence information and the actual instantaneous fuel consumption value through the first acquisition unit and the second acquisition unit respectively, and the first calculation unit unit The corresponding relationship stored in the vehicle condition storage unit calculates the most economical instantaneous fuel consumption value corresponding to the fuel consumption value influence information acquired by the first acquisition unit, and compares the actual instantaneous fuel consumption value with the most economical instantaneous fuel consumption value, thereby obtaining the actual Driving fuel economy rating. Since the first acquisition unit acquires information related to the driver's current operating purpose and affects the instantaneous fuel consumption value, such as vehicle speed and other information, the most economical instantaneous fuel consumption value calculated is based on the driver's current driving purpose. Then, by comparing the most economical instantaneous fuel consumption value with the actual instantaneous fuel consumption value, the current driving economy level is obtained, which intuitively reflects the influence of the driver's actual operation on the vehicle's fuel economy, and solves the problems existing in the prior art. question.

Description of drawings

Fig. 1 is the structural representation of the driver's driving economy evaluation system provided by the embodiment of the present invention;

Fig. 2 is another structural schematic diagram of the driver's driving economy evaluation system provided by the embodiment of the present invention;

Fig. 3 is another structural schematic diagram of the driver's driving economy evaluation system provided by the embodiment of the present invention;

Fig. 4 is another structural schematic diagram of the driver's driving economy evaluation system provided by the embodiment of the present invention;

Fig. 5 is another structural schematic diagram of the driver's driving economy evaluation system provided by the embodiment of the present invention;

6 is a flow chart of a driver's driving economy evaluation method provided by an embodiment of the present invention;

Fig. 7 is another flow chart of the driver's driving economy evaluation system method provided by the embodiment of the present invention;

Fig. 8 is another flow chart of the driver's driving economy evaluation system method provided by the embodiment of the present invention;

FIG. 9 is another flow chart of the driver's driving economy evaluation system method provided by the embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

An embodiment of the present invention provides a driver's driving economy evaluation system. Referring to FIG. 1 , the system includes an acquisition unit 100 for acquiring driving information and a central processing unit 200;

The above acquisition unit 100 includes:

The first acquisition unit 101 is used to acquire fuel consumption value impact information;

The second acquisition unit 102 is used to acquire the actual instantaneous fuel consumption value;

Above-mentioned central processing unit 200 comprises:

Vehicle condition storage unit 201: used to store the information on the influence of fuel consumption value, the corresponding relationship between the most economical vehicle state and the most economical instantaneous fuel consumption value;

The first calculation unit 202 is configured to calculate the most economical instantaneous fuel consumption value corresponding to the fuel consumption value impact information acquired by the first acquisition unit according to the correspondence stored in the vehicle condition storage unit;

A comparing unit 203, configured to compare the actual instantaneous fuel consumption value with the most economical instantaneous fuel consumption value to obtain the current driving economy level;

The above-mentioned first acquisition unit 101 includes: a vehicle speed acquisition unit 101a for acquiring vehicle speed information;

Wherein, the first output end of the vehicle speed acquisition unit 101a is connected with the first input end of the first calculation unit 202; the first output end of the vehicle condition storage unit 201 is connected with the second input end of the first calculation unit 202; the first calculation unit The first output terminal of 202 is connected to the first input terminal of the comparison unit 203 ; the output terminal of the second acquisition unit 102 is connected to the second input terminal of the comparison unit 203 .

The above fuel consumption value impact information specifically includes the current vehicle speed, and the most economical vehicle state may specifically include the most economical speed n' and the most economical torque T' at the current vehicle speed.

The above-mentioned vehicle condition storage unit 201 can store the fuel consumption value influence information, the corresponding relationship between the most economical vehicle state and the most economical instantaneous fuel consumption value in a specific way, which can be to store the universal characteristic map (MAP map) of the engine itself. The rotational speed n, the ordinate represents the torque T, and the vehicle speed contours represent different instantaneous fuel consumption values at this speed. Therefore, the speed n and torque T can be used to represent the operating point of the engine as (n, T), each operating point corresponds to a unique instantaneous fuel consumption value, and a certain vehicle is configured for the power system. When the vehicle speed is a certain value, the speed change When the fuel tank position, throttle opening and other conditions are different, the engine operating point (n, T) is also different, and the corresponding instantaneous fuel consumption value is also different.

The working process of the above system is:

The vehicle speed acquisition unit in the first acquisition unit 101 acquires the current vehicle speed v through a bus that can transmit data in real time, such as a CAN bus or a FlexRay bus, and the second acquisition unit 102 acquires the vehicle speed v through a bus that can transmit data in real time, such as a CAN bus or a FlexRay bus. The current actual instantaneous fuel consumption value U;

The first calculation unit 202 calculates the instantaneous fuel consumption values corresponding to all operating points corresponding to the vehicle speed v obtained by the above-mentioned vehicle speed acquisition unit in the MAP diagram, and takes the minimum value as the most economical instantaneous fuel consumption value U';

The comparison unit 202 compares the actual instantaneous fuel consumption value U and the most economical instantaneous fuel consumption value U' to obtain the current driving economy level.

It can be seen from the above structure and working process that the driver's driving economy evaluation system provided by the embodiment of the present invention obtains the fuel consumption value influence information and the actual instantaneous fuel consumption value U through the first acquisition unit and the second acquisition unit respectively, and the first calculation unit The corresponding relationship stored in the unit vehicle condition storage unit calculates the most economical instantaneous fuel consumption value U' corresponding to the fuel consumption value impact information obtained by the first acquisition unit, and compares U with U' to obtain the actual driving fuel consumption. economy class. Since the first acquisition unit acquires information related to the driver's current operating purpose and affects the instantaneous fuel consumption value, such as vehicle speed and other information, the most economical instantaneous fuel consumption value calculated is based on the driver's current driving purpose. Then, by comparing the most economical instantaneous fuel consumption value with the actual instantaneous fuel consumption value, the current driving economy level is obtained, which intuitively reflects the influence of the driver's actual operation on the vehicle's fuel economy, and solves the problems existing in the prior art. question.

Referring to Fig. 2, in other embodiments of the present invention, the first acquisition unit 101 in all the above-mentioned embodiments also includes a road condition information acquisition unit, and the road condition information acquisition unit includes a road condition information acquisition unit 101b for collecting the road condition information of the current driving section, and A traffic information conversion unit 101c that converts traffic information into digital traffic information;

The output end of the road condition information collection unit 101b is connected to the input end of the road condition information conversion unit 101c, and the output end of the road condition information conversion unit 101b is connected to the second input end of the first calculation unit 202 .

The above-mentioned road condition information acquisition unit is used to collect road condition information of the current driving section, and convert the road condition information into digital information for processing by the central processing unit 200 . Specifically, the road condition information collection unit 101b is used to collect the road condition information of the current driving section, which can be realized by devices such as vehicle radar, external camera or radio frequency RFID reading module: the vehicle radar can detect the front and rear road conditions; the external camera can Directly capture road condition information such as lane markings; the radio frequency RFID reading module can receive road condition information sent by radio frequency transmitting modules installed on both sides of the road. The road condition information converting unit 101c is used to convert the non-digital road condition information collected by the road condition information collecting unit 101b into digital road condition information that can be processed by the central processing unit 200 .

The above-mentioned system obtains the road condition information of the current road section through the road condition information acquisition unit, and transmits it to the central processing unit 200. The central processing unit 200 calculates the most economical instantaneous fuel consumption value based on the above road condition information and vehicle speed, and the obtained result is more accurate.

Referring to Fig. 3, the central processing unit 200 in all the above-mentioned embodiments also includes a second calculation unit 204, the first input end of the second calculation unit 204 is connected with the second output end of the vehicle condition storage unit 201, and the second calculation unit 204 The second input end is connected to the second output end of the vehicle speed acquisition unit 101 a , and the third output end of the second calculation unit 204 is connected to the second output end of the first calculation unit 202 .

The above-mentioned second calculation unit 204 is used to search the corresponding relationship stored in the vehicle condition storage unit 201, simultaneously with the fuel consumption value influence information acquired by the first acquisition unit 101 and the most economical instantaneous fuel consumption value U' calculated by the first calculation unit The corresponding most economical operating point (n', T') is the most economical vehicle state, and according to the found most economical vehicle state, the driving suggestion information representing the most economical driving mode is back-calculated using theories such as the fuel consumption calculation formula per 100 kilometers.

The above-mentioned driving suggestion information may include suggested gear (ie the most economical gear corresponding to the most economical instantaneous fuel consumption value), suggested throttle opening (ie the most economical throttle opening corresponding to the most economical instantaneous fuel consumption value), shift timing, etc.

4, the system shown in FIG. 3 also includes a display unit 300, the first input terminal of the display unit 300 is connected to the first output terminal of the comparison unit 203, and the second input terminal of the display unit 300 is connected to the second input terminal of the second calculation unit 204. One output connection.

The above-mentioned display unit 300 is used to display the current driving economy level obtained by the comparison unit 203 and/or the driving suggestion information calculated by the second calculation unit 204, so that the driver can check his current driving status at any time during driving. It can also improve its own driving operation in time according to the driving suggestion information, making the current driving more fuel-efficient and more economical.

Referring to Fig. 5, the system shown in Fig. 3 also includes an evaluation result storage unit 400, the first input end of the evaluation result storage unit 400 is connected with the second output end of the comparison unit 203, the second input end of the evaluation result storage unit 400 is connected with the second output end of the evaluation result storage unit 400 The second output end of the second calculation unit 204 is connected.

The above-mentioned evaluation result storage unit 400 is used to store the current driving economy level obtained by the comparison unit 203 and/or the driving suggestion information calculated by the second calculation unit 204, so that the historical driving situation of the driver can be checked at any time, which is convenient The driver summarizes driving experience and improves driving skills.

In addition, the driver's actual operation corresponding to the actual instantaneous fuel consumption value can be obtained in real time during the driving process, such as actual gear position, actual accelerator opening, actual shift timing, etc., and displayed or stored corresponding to the driving advice information. In this way, through The comparison between the two can more specifically reflect the level of the driver's driving economy and driving skills.

The functions of the above evaluation result storage unit 400 can be realized by USB storage devices and wireless storage devices supporting GPRS, WIFI and Bluetooth.

Referring to Fig. 6, in other embodiments of the present invention, the driver's driving economy evaluation system or the central processing unit 200 in all the above-mentioned embodiments also includes a personal information storage unit 501, an input unit 502 and a verification unit 503;

The first input of the verification unit 503 is connected to the output of the personal information storage unit 501, the second input of the verification unit 503 is connected to the output of the input unit 502, and the output of the verification unit 503 is connected to the input of the acquisition unit 100. connect.

The above-mentioned personal information storage unit 501 is used to store the personal information of the driver who has the right to drive the vehicle, the input unit 502 is used to obtain the personal information of the driver to be verified, and the verification unit 503 is used to verify the driver to be verified obtained by the input unit 502 Personal information, when the personal information of the driver to be verified is consistent with the personal information of the driver authorized to drive the vehicle stored in the personal information storage unit 501, the engine and/or the acquisition unit 101 is triggered.

The personal information storage unit 501, the input unit 502, and the verification unit 503 in the above embodiment jointly complete the identity verification of the driver who intends to drive the vehicle. The personal information storage unit 501 stores the personal information of the driver who is authorized to drive the car preset by the administrator. In 501, look for the driver information that is consistent with the driver's personal information to be verified. If found, it means that the driver has the right to drive the car. The verification unit 503 can start the vehicle by triggering the engine or the vehicle described in the embodiment of the present invention. The driver's economy evaluation system, or directly start the driver's economy evaluation system described in the embodiment of the present invention through the trigger acquisition unit 100; otherwise the driver has no right to drive the car, the engine or the driver described in the embodiment of the present invention The economic evaluation system will not start. Therefore, the above-mentioned system strengthens the anti-theft function of the vehicle, and the evaluation system provided by the embodiment of the present invention has a driver management function, and can be applied to fields such as driver's license examination and fleet vehicle management.

In addition, in other embodiments of the present invention, the personal information of the vehicle authorized to drive in the above embodiments can be combined with the corresponding driver's historical driving records (such as the gear actually operated by the driver, the accelerator opening, the timing of shifting and The above-mentioned driving economy level) is correspondingly stored, so as to check and know the historical driving situation of each driver, and can also be applied to fields such as driver's license examination and fleet assessment.

In addition, the embodiment of the present invention also provides a driver's driving economy evaluation method, see Figure 4, the above method at least includes the following steps:

S1: Obtain driving information; the driving information includes fuel consumption value influence information and actual instantaneous fuel consumption value, and the fuel consumption value influence information includes vehicle speed information;

S2: Calculate the most economical instantaneous fuel consumption value corresponding to the acquired fuel consumption value impact information according to the correspondence between the fuel consumption value impact information, the most economical vehicle state, and the most economical instantaneous fuel consumption value;

S3: Comparing the most economical instantaneous fuel consumption value and the actual instantaneous fuel consumption value to obtain the current driving economy level;

The division of the above-mentioned economy level can be: the possible gap range [0, X] between estimated actual instantaneous fuel consumption value U and the most economical instantaneous fuel consumption value U', and this interval is divided into multiple sub-intervals according to needs, such as divided into 5 sub-intervals [0, X ₁ ], [X ₁ , X ₂ ], [X ₂ , X ₃ ], [X ₃ , X ₄ ], [X ₄ , X ₅ ] (the maximum and minimum values of each interval The difference between them can be set according to actual needs, which can be the same or different), corresponding to economical level 5, economical level 4, economical level 3, economical level 2, and economical level 1, that is, the higher the economical level, The driver's driving economy is also higher. The specific implementation of the comparison process in step S3 is:

Calculate the difference X ₀ between the most economical instantaneous fuel consumption value U' and the actual instantaneous fuel consumption value U; where, X ₀ =U-U'

Determine which subinterval of [0, X] X ₀ belongs to, and obtain the current driver's driving economy level.

From the above method, it can be known that

In other method embodiments of the present invention, the driving information in all the above methods also includes road condition information, so that the calculation of the most economical instantaneous fuel consumption value combines vehicle speed information and road condition information, and the obtained result is more accurate.

Referring to Fig. 8, in other method embodiments of the present invention, after step S3 in the above method, it also includes:

S4: Display and/or store the current driving economy level.

Referring to FIG. 9, in other method embodiments of the present invention, after step S3 in the above method, it also includes:

S5: According to the correspondence between the fuel consumption value impact information, the most economical vehicle state, and the most economical instantaneous fuel consumption value, search for the most economical instantaneous fuel consumption simultaneously with the acquired fuel consumption value impact information and the calculated The most economical vehicle state corresponding to the value;

The above-mentioned most economical vehicle state includes the most economical operating point (n', T') corresponding to the most economical instantaneous fuel consumption value U', that is, the most economical speed n' and the most economical torque T'.

S6: Back-calculate the driving advice information representing the most economical driving mode according to the most economical vehicle state found above;

Using theories such as the fuel consumption calculation formula per 100 kilometers, the corresponding most economical driving mode can be calculated from the most economical speed n’ and the most economical torque T’, such as the most economical gear, the most economical throttle opening, the most economical shift timing, etc. The most economical driving mode can be used as driving advice information to guide the driver on how to improve driving operation and improve driving skills.

S7: Display and/or store the above driving advice information.

The display of the current driving economy level or driving suggestion information in the above method can enable the driver to check his current driving economy level at any time during the driving process, and can also improve his driving operation in time according to the driving suggestion information, Make current driving more fuel-efficient and more economical;

Store the current driving economy level or driving suggestion information, and you can check the driver's historical driving situation at any time, which is convenient for the driver to summarize driving experience and improve driving skills.

In addition, the driver's actual operation corresponding to the actual instantaneous fuel consumption value can be obtained in real time during the driving process, such as actual gear position, actual accelerator opening, actual shift timing, etc., and displayed or stored corresponding to the driving advice information. In this way, through The comparison between the two can more specifically reflect the level of the driver's driving economy and driving skills.

In addition, before the step S1 of the driver's driving economy evaluation method in all the method embodiments above, it also includes:

Pre-set the personal information of at least one driver who has the right to drive the vehicle;

Acquiring the personal information of the driver to be verified and verifying whether the input personal information is consistent with the personal information of the driver who has the right to drive the vehicle, if yes, execute step S1, otherwise display an error message.

The above methods for obtaining the personal information of the driver to be verified include ID number input, ID card scanning, face recognition and fingerprint scanning, etc.

At the same time, the personal information of the vehicle authorized to drive in the above embodiment is stored in correspondence with the historical driving record of the corresponding driver (such as the gear actually operated by the driver, the throttle opening, the timing of shifting gears, and the above-mentioned driving economy level), It is about associating or merging the personal information and historical driving records of the same driver. Through the personal information of the driver, all the driving history records can be found, so as to view and know the historical driving conditions of each driver. It can also be applied to Driver's license test, fleet assessment and other fields.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A driver's driving economy evaluation system is characterized in that, comprising: an acquisition unit and a central processing unit for obtaining driving information; The acquisition unit includes: a first acquisition unit for acquiring fuel consumption value influence information and a second acquisition unit for acquiring actual instantaneous fuel consumption value; The central processing unit includes: A vehicle condition storage unit that stores the relationship between fuel consumption value impact information, the most economical vehicle state and the most economical instantaneous fuel consumption value; A first calculation unit that calculates the most economical instantaneous fuel consumption value corresponding to the fuel consumption value impact information acquired by the first acquisition unit according to the correspondence stored in the vehicle condition storage unit; A comparison unit for comparing the actual instantaneous fuel consumption value with the most economical instantaneous fuel consumption value to obtain the current driving economy level; The first acquisition unit includes a vehicle speed acquisition unit for acquiring vehicle speed information; The first output end of the vehicle speed acquisition unit is connected to the first input end of the first calculation unit; the first output end of the vehicle condition storage unit is connected to the second input end of the first calculation unit; the The first output terminal of the first calculation unit is connected to the first input terminal of the comparison unit; the output terminal of the second acquisition unit is connected to the second input terminal of the comparison unit. 2. system according to claim 1, is characterized in that, described first acquisition unit also comprises road condition information acquisition unit, and described road condition information acquisition unit comprises the road condition information acquisition unit of collecting the road condition information of current driving section, and will The road condition information conversion unit that converts the road condition information into digital traffic information; The output end of the road condition information collection unit is connected to the input end of the road condition information conversion unit, and the output end of the road condition information conversion unit is connected to the second input end of the first calculation unit. 3. The system according to claim 1, wherein the central processing unit further comprises: in the corresponding relationship stored in the vehicle condition storage unit, searching for the fuel consumption value impact information obtained simultaneously with the first obtaining unit The second calculation of the most economical vehicle state corresponding to the most economical instantaneous fuel consumption value calculated by the first calculation unit, and inversely calculating the driving advice information representing the most economical driving mode according to the found most economical vehicle state unit; The first input end of the second calculation unit is connected to the second output end of the vehicle condition storage unit, the second input end of the second calculation unit is connected to the second output end of the vehicle speed acquisition unit, and the The third output terminal of the second calculation unit is connected to the second output terminal of the first calculation unit. 4. The system according to claim 3, characterized in that, the system further comprises a display unit for displaying the economic level of the current driving and/or the driving advice information; The first input terminal of the display unit is connected to the first output terminal of the comparison unit, and the second input terminal of the display unit is connected to the first output terminal of the second computing unit. 5. The system according to claim 3, characterized in that, the system further comprises an evaluation result storage unit that stores the current driving economy level and/or the driving advice information; The first input end of the evaluation result storage unit is connected to the second output end of the comparison unit, and the second input end of the evaluation result storage unit is connected to the second output end of the second calculation unit. 6. The system according to any one of claims 1 to 5, characterized in that the system or the central processing unit further comprises: a personal information storage unit for storing the personal information of the driver who has the right to drive the vehicle; an input unit for the driver's personal information, and verifying the driver's personal information to be verified, triggering the engine and /or the verification unit of the acquisition unit; The first input end of the verification unit is connected to the output end of the personal information storage unit, the second input end of the verification unit is connected to the output end of the input unit, and the output end of the verification unit is connected to the Get the input connections of the cell. 7. A driver's driving economy evaluation method, characterized in that it is applied to the driver's driving economy evaluation system described in any one of claims 1-6, comprising the steps of: Acquiring driving information; the driving information includes fuel consumption value influence information and actual instantaneous fuel consumption value, and the fuel consumption value influence information includes vehicle speed information; Calculate the most economical instantaneous fuel consumption value corresponding to the acquired fuel consumption value impact information according to the fuel consumption value impact information, the most economical vehicle state, and the most economical instantaneous fuel consumption value; The most economical instantaneous fuel consumption value is compared with the actual instantaneous fuel consumption value to obtain the current driving economy level. 8. The method according to claim 7, wherein the fuel consumption value impact information further includes road condition information. 9. The method according to claim 7, further comprising: displaying and/or storing the current driving economy level after obtaining the current driving economy level; After the calculation of the most economical instantaneous fuel consumption value of the vehicle, it also includes: According to the correspondence between the fuel consumption value impact information, the most economical vehicle state, and the most economical instantaneous fuel consumption value, the search is simultaneously corresponding to the acquired fuel consumption value impact information and the calculated most economical instantaneous fuel consumption value The most economical vehicle state; Back-calculating the driving advice information representing the most economical driving mode according to the found most economical vehicle state; Displaying and/or storing the driving advice information. 10. The method according to any one of claims 7-9, further comprising: Pre-store the personal information of at least one driver authorized to drive the vehicle; Obtain the personal information of the driver to be verified and verify whether the personal information of the driver to be verified is consistent with the personal information of the driver who has the right to drive the vehicle, if yes, execute the acquisition of driving information, otherwise prompt an error .