KR20090078239A - Fuel efficiency display device of diesel-vehicle and thereof - Google Patents

Abstract

A fuel efficiency measuring device of a diesel-vehicle and a method thereof are provided to deliver information about fuel consumption rate and continued ratio to a driver by sensing data detected by a fuel injection nozzle and a rail pressure sensor and fuel flux data and converting the data into the fuel consumption rate and the continued ratio. A fuel efficiency measuring device of a diesel-vehicle comprises: a detection unit(100) detecting the injection pulse of an injector of a diesel common rail engine and detecting the voltage of a rail pressure sensor and detecting speed pulse and receiving data of GPS(Global Positioning System); a control operation unit(200) making fire pulse, detected voltage, GPS data and speed pulse into data and converting the data into injection amount and traveling distance; and a display unit(300) displaying data transmitted through the control operation unit and outputting the state of the vehicle with sound.

Description

Fuel efficiency display device of diesel-vehicle and approx.

The present invention relates to an apparatus and method for measuring fuel efficiency of a diesel vehicle (common rail engine). More specifically, the driver can visually and hearing the fuel consumption rate, fuel consumption, and practical driving fuel efficiency according to the economic driving region and the non-economic driving region. The present invention relates to a fuel efficiency measuring apparatus and method of a diesel vehicle capable of inducing economic driving by displaying the vehicle in a manner of induction and comparing an official fuel consumption with a displayed fuel economy to determine an aging state and abnormality of a current diesel vehicle.

In general, the fuel consumption rate of automobiles is the lowest in the economic driving zone and high in the non-economic driving zone. Therefore, if you drive in the economic driving area, you can operate economically. However, since a conventional vehicle is not provided with a display device for knowing the amount of fuel consumed or the fuel consumption rate, the driver cannot know in which area he is driving and cannot drive in an economic driving area.

In addition, the consumption of fuel generally takes about 30% more than normal driving at rapid start or acceleration. However, in the related art, there is a lack of proper correction means in a sudden start and a rapid acceleration due to a driver's wrong habit, and thus, problems such as excessive fuel consumption, increased exhaust fumes, and shortened vehicle life have been exposed together.

In addition, there is a fuel cut function that is applied to almost all vehicles recently, but there is no expression for the driver to recognize the fuel cut-off state, and the result is if the driver is operated using the existing optimal driving guidance device. There was no device for displaying fuel efficiency efficiently.

On the other hand, it was easy to calculate the fuel economy for a conventional gasoline vehicle, but it was difficult to calculate the fuel economy for a diesel vehicle, the present invention proposes a technology that can easily calculate the fuel economy of a diesel vehicle like a gasoline vehicle. I would like to.

Therefore, the present invention has been proposed in view of the problems of the prior art as described above, and an object of the present invention is to calculate the data detected from the vehicle fuel injector and the rail pressure sensor based on a predetermined method (input method) and equation. It detects fuel flow data and converts it into fuel consumption rate and fuel economy, and delivers it to the driver efficiently, inducing economical driving and effectively expressing the improvement of fuel efficiency when operated as directed by the device. .

Another object of the present invention is to be able to induce economic driving through the non-economic driving zone notification.

Still another object of the present invention is to compare the certified fuel economy and the display fuel economy to determine the aging state and abnormality of the current diesel vehicle.

In order to achieve the problem to be solved by the present invention,

Fuel economy measurement apparatus for a diesel vehicle according to an embodiment of the present invention,

Detection means for detecting injector injection pulses of a diesel common rail engine, voltage detection of a rail pressure sensor, speed pulse detection, and GPS data;

The injection pulse of the data detected by the detection means is converted into data for operation control, the detected voltage is converted into data for operation control, the detected GPS data is converted into data for operation control, and the detected speed pulse is converted into data. Data is converted to enable arithmetic control, and the converted injection pulses and voltages are converted into secondary waveforms and converted into injection times, and the converted GPS data and speed pulses are converted into vehicle travel distances, and the injection times and movements are performed. Control calculation means for converting the distance is converted into the injection amount and the movement distance based on the formula and the actual fuel flow rate and the movement distance input based on the input method;

Display means for displaying data transmitted through the control operation means or informing the driver of the state of the vehicle by sound through the transmitted data and commands;

It is characterized in that it comprises a; input means for receiving the necessary commands in operation to transmit to the control operation means.

The fuel efficiency measuring apparatus and method of a diesel vehicle (common rail engine) according to the present invention having the above configuration and action can naturally induce economic driving habits by instructing the driver of the economic driving region and the non-economic driving region.

First, it will drive economic driving and provide fuel economy improvement.

Second, it is possible to reduce soot by operating in an efficient section.

Third, due to accurate distance measurement using GPS, it is possible to check whether the tire is properly inflated according to the distance error compared to the rangefinder.

Fourth, the fuel cost is improved through fuel economy improvement.

Fifth, accurate fuel economy measurement is possible by adopting a method of inputting the actual fuel flow rate.

Sixth, it is possible to extend the life of the vehicle by operating the vehicle in an optimal state.

Seventh, it is possible to recognize the need for fuel savings by displaying the fuel economy accurately, to recognize the fuel waste in the heavy traffic section.

Eighth, it is possible to determine the current state of aging and abnormal status of the vehicle by comparing the fuel efficiency and the display fuel economy.

The fuel economy measurement device of the diesel vehicle of the present invention for achieving the above object,

Detection means for detecting injector injection pulses of a diesel common rail engine, voltage detection of a rail pressure sensor, speed pulse detection, and GPS data;

The injection pulse of the data detected by the detection means is converted into data for operation control, the detected voltage is converted into data for operation control, the detected GPS data is converted into data for operation control, and the detected speed pulse is converted into data. The data is converted to enable arithmetic control, and the converted injection pulses and voltages are converted into secondary waveforms and converted into injection time, and the converted GPS data and speed pulses are converted into a moving distance of the vehicle, and the injection time and The movement distance is converted into an injection amount and a movement distance on the basis of the input actual oil flow rate and the movement distance, and includes a control calculation means for calculating based on the injection amount and the movement distance;

Display means for displaying data transmitted through the control operation means or informing the driver of the state of the vehicle by sound through the transmitted data and commands;

And input means for receiving a command required for operation provided to the driver and transmitting the command to the control operation means.

At this time, the detection means,

An injector injection pulse detection unit for detecting an injector injection pulse of a diesel common rail engine;

A rail pressure detector for detecting a voltage of a rail pressure sensor for detecting a pressure of a common rail of a diesel common rail engine;

A speed pulse detector for detecting a speed pulse by a speed sensor of a diesel vehicle (common rail);

Characterized in that it comprises a GPS data receiver for receiving data of the GPS.

At this time, the control operation means,

An injection pulse calculation unit for converting the injector injection pulses detected by the detection means into data to enable arithmetic control;

An AD converter for converting the voltage detected by the detection means into data to enable arithmetic control;

A distance data selection unit for automatically determining whether to connect with an external GPS terminal and automatically selecting a speed sensor or an external GPS terminal;

A GPS data calculation unit for converting the GPS data detected by the detection unit into data to enable arithmetic control;

A speed pulse calculating unit for converting the speed pulse detected by the detecting means into data so that arithmetic control is possible;

A secondary waveform calculator for generating a secondary waveform based on the data inputted from the injection pulse calculator and the AD converter;

An injector injection amount calculation unit for converting the data calculated by the secondary waveform operation unit into injection time;

A movement distance calculator for converting the data calculated by the GPS data operator or the speed pulse operator into the movement distance of the vehicle after being selected by the distance data selector;

A data storage unit for storing data information on driving until the vehicle is stopped and stopped again;

The injection time and moving distance processed by the injector injection amount calculating unit and the moving distance calculating unit are converted into the injection amount and the moving distance by a formula determined based on the actual oil flow rate and the moving distance input based on the input method, and based on the injection amount and the moving distance. A central control unit for calculating fuel economy and controlling display means with the calculated data or generating data to be stored in the data storage unit, and executing a command inputted to an input control unit;

It characterized in that it comprises an input control unit for analyzing the input signal transmitted from the input means to convert the data necessary commands for operation to the central control unit.

At this time, the display means,

A display unit for displaying data transmitted through the control operation means;

And a non-economic driving zone notification unit for notifying the driver of the state of the vehicle by sound through data and commands transmitted through the control operation means.

In addition, the fuel consumption measurement method of the present invention diesel vehicle,

A mode selection step for causing a user to select a setting mode or an operation mode;

An initialization step of initializing driving information stored in the data storage unit when the setting mode is selected;

An information acquiring step for acquiring a corresponding fuel flow rate and a travel distance after inputting the fuel flow rate and a travel distance which are re-lubricated after the actual driving;

A data storage step of storing the obtained information in a data storage unit;

A fuel economy calculation step of calculating fuel economy by converting the injection amount and the movement distance based on the stored data information;

And an output step of outputting the calculated fuel efficiency to a display unit.

At this time, the information acquisition step,

A mode selection step for allowing the user to select a setting mode or an operation mode,

An initialization step for initializing driving information stored in the data storage unit when the setting mode is selected;

An information input step of inputting the fuel flow rate and travel distance which are re-lubricated after the actual driving;

And a driving information acquisition step for acquiring the corresponding fuel flow rate and the moving distance which are always input.

Hereinafter, it will be described in detail through an embodiment of the fuel economy measurement device and method of the diesel vehicle according to the present invention.

1 is an overall configuration diagram of a fuel economy measurement device for a diesel vehicle according to an embodiment of the present invention.

As shown in FIG. 1, the fuel efficiency measuring apparatus of the diesel vehicle of the present invention is

Detection means (100) for injector injection pulse detection of a diesel common rail engine, voltage detection of a rail pressure sensor, speed pulse detection, and GPS data;

The injection pulse of the data detected by the detecting means is converted into data to enable the operation control, the detected voltage is converted into data to enable the operation control, the detected GPS data is converted into data to enable the operation control, and the detected speed pulse. The data is converted to enable operation control, and the converted injection pulse and voltage are converted into secondary waveforms and converted into injection time, and the converted GPS data and speed pulses are converted into a moving distance of the vehicle, and the injection time and The movement distance is converted into the injection amount and the movement distance based on the input actual oil flow rate and the movement distance, and the control calculation means 200 for calculating based on the injection amount and the movement distance;

Display means (300) for displaying data transmitted through the control operation means or informing the driver of the state of the vehicle by sound through the transmitted data and commands;

It is characterized in that it comprises a; input means 400 for receiving the necessary commands in operation provided to the driver and transmitting to the control operation means.

As described above, the fuel economy measurement apparatus of the diesel vehicle (common rail engine) of the present invention comprises a detection means, a control calculation means, a display means and an input means.

Through the above configuration, it is possible to naturally induce the habit of economic driving by instructing the driver of the economic driving region and the non-economic driving region.

The driver may receive a command manipulated by the driver through the input means, or may receive an oil flow rate and a movement distance.

Referring to the schematic operation principle, the injector injection pulse, the rail pressure voltage, the speed pulse, and the data detected by the detection means 100 are received by the control operation means, and are input based on the received data and the input method. The fuel consumption is calculated based on the actual fuel flow rate and travel distance based on the injection amount and travel distance calculated by the formula. To help.

Figure 2 is a block diagram of the detection means of the fuel economy measurement apparatus of a diesel vehicle according to an embodiment of the present invention.

As shown in Figure 2, the detection means of the present invention,

An injector injection pulse detection unit 110 for detecting an injector injection pulse of a diesel common rail engine,

A rail pressure detector 120 for detecting a voltage of a rail pressure sensor for detecting the pressure of the common rail of the diesel common rail engine;

A speed pulse detector 130 for detecting a speed pulse by a speed sensor of a diesel vehicle (common rail engine);

It is characterized in that it comprises a GPS data receiver 140 for receiving data of the GPS.

The injector injection pulse detector 110 preferably detects the injector injection pulse of the diesel common rail engine using a current sensor.

The GPS data receiver 140 receives the data of the GPS by referring to the GPS protocol, and since the technology of receiving the data of the GPS is already well known to those skilled in the art, a detailed description thereof will be omitted.

Information detected by the components of the detecting means is transmitted to the control computing means to perform arithmetic processing.

3 is a block diagram of the control operation means of the fuel economy measurement apparatus of a diesel vehicle according to an embodiment of the present invention.

As shown in Figure 3, the control operation means of the present invention,

An injection pulse calculation unit 205 for converting the injector injection pulses detected by the detection means into data to enable arithmetic control;

An AD converter 210 for converting the voltage detected by the detection means into data to enable arithmetic control;

A distance data selection unit 215 for automatically determining whether to be connected to an external GPS terminal and automatically selecting a speed sensor or an external GPS terminal;

A GPS data calculating unit 220 for converting the GPS data detected by the detecting unit into data to enable arithmetic control;

A speed pulse calculation unit 225 for converting the speed pulse detected by the detection means into data to enable arithmetic control;

A secondary waveform operator 230 for generating a secondary waveform based on the data inputted from the injection pulse operator and the AD converter;

An injector injection amount calculator 235 for converting the data calculated by the secondary waveform operator into an injection time;

A movement distance calculator 240 for converting the data calculated through the GPS data operator or the speed pulse operator into the movement distance of the vehicle after being selected by the distance data selector;

A data storage unit 245 for storing data information on the operation of the vehicle until it stops again;

The injection time and moving distance processed by the injector injection amount calculating unit and the moving distance calculating unit are converted into the injection amount and the moving distance by a formula determined based on the actual oil flow rate and the moving distance input based on the input method, and based on the injection amount and the moving distance. A central control unit 250 for calculating fuel economy and controlling display means with the calculated data or generating data to be stored in the data storage unit, and executing a command input to an input control unit;

It characterized in that it comprises an input control unit 255 for analyzing the input signal transmitted from the input means to convert the data necessary commands for operation to the central control unit.

The injection pulse calculating unit 205 preferably converts the injector injection pulse detected by the injector injection pulse detection unit of the detection means into data using a capture / compare / PWM (CCP) function.

The AD converter 210 converts the voltage detected by the rail pressure detector of the detection unit into data so as to enable arithmetic control.

The equation for data conversion in the injection pulse operation unit and the AD converter is as follows.

INJp: Injector Pulse

CCP _RinsingEdge : Rising edge pulse counter

CR _Pressure Current rail pressure

V _Ref : Reference voltage of ADC

ADC _Result : Result of current ADC

ADC _Max : Highest value of ADC

P _f : Basic pressure conversion constant

The injector pulse is the same as the rising edge pulse counter and has a waveform as shown in FIG. 6A.

의 수식을 이용하게 되며 도 6b와 같은 파형을 나타내게 된다.In addition, the AD converter 210 is described in order to data the voltage detected by the rail pressure detection unit of the detection means to enable the operation control

It will be used to represent the waveform as shown in Figure 6b.

Therefore, the second waveform is generated by the second waveform operator 230 based on the data inputted by the injection pulse calculator 205 and the AD converter 210, and the generated waveform is shaped as shown in FIG. 6C. appear.

The generated secondary waveform is converted into a unit injection amount by the injector injection amount calculation unit 235, using the following equation.

INJ _true : Current injection rate per minute

INJ _Defult : Injection rate per minute

CR _Defult : Reference pressure

The distance data selection unit 215 automatically determines whether to be connected to an external GPS terminal and automatically selects a speed sensor or an external GPS terminal. The GPS data calculation unit detects the GPS data detected by the GPS data receiver of the detection unit. In operation 220, data is converted to enable operation control.

In addition, the speed pulse calculating unit 225 converts the speed pulse detected by the speed pulse detecting unit of the detecting unit into data so as to enable arithmetic control.

At this time, the data transmitted from the GPS data operator 220 or the speed pulse operator 225 selected by the distance data selector 215 is converted into the movement distance of the vehicle through the movement distance calculator.

Eventually, the injector injection time and the movement distance are calculated based on the unit injection amount and the movement distance transmitted from the injector injection amount calculation unit and the movement distance calculation unit, and the calculated injection time and the movement distance are input based on the input method. The fuel economy is calculated by the formula determined based on the following formula.

INJc: Current Injector Injection Constant

INJ _RealTime : Current injector injection time

INJ _IdleTime : Standard injection time

FUEL _Defult : Injection rate per unit time

FUEL _Real : Actual total oil flow

D _Total Total travel distance

YUNBI: Average Fuel Economy

CLK _DefultTime : Clock reference time of central controller

 Control the display means with the data calculated as described above or generate data to be stored in the data storage unit, and execute the command input to the input control unit.

When the user inputs the commands necessary for operating the apparatus of the present invention and transmits them to the input control unit 255 of the control operation unit, the input means analyzes the input signal transmitted from the input control unit to data necessary commands for operation. Transmission to the central control unit.

4 is a flowchart illustrating a method for measuring fuel economy of a diesel vehicle according to an embodiment of the present invention.

5 is a flow chart for inputting the actual flow rate of the fuel economy measurement method of the diesel vehicle according to an embodiment of the present invention.

As shown in Figure 4, the fuel economy measurement method of the diesel vehicle,

A mode selection step (S110) for allowing a user to select a setting mode or an operation mode;

Initializing step (S120) for initializing the driving information stored in the data storage when the setting mode is selected;

An information acquisition step (S130) for acquiring a corresponding fueling amount and a moving distance after inputting the oiling amount and the moving distance which are re-lubricated after the actual driving;

A data storage step (S140) for storing the obtained information in a data storage unit;

A fuel efficiency calculation step (S150) for calculating fuel efficiency by converting the injection amount and the movement distance based on the stored data information;

And an output step (S160) for outputting the calculated fuel efficiency to a display unit.

4 to 5, since the user performs the initial setting to use the apparatus of the present invention is output through the display unit to select the setting mode or operation mode (S131).

The user selects the setting mode or the operation mode through the input means (S110). When the setting mode is selected, the driving-related information stored in the data storage unit is initialized (S120), the oil is filled in the vehicle, and the odometer is initialized (S132). Done.

In the initialized state, the driver drives more than a certain distance, and in the present invention, it is set to 50 km.

When filling the oil into the vehicle again, if the fuel flow rate and the moving distance are input (S133), the relevant information is acquired (S130), and the operation mode is changed and the data is stored after confirming whether the vehicle is started (S140, S134). Done.

When the data is stored, the fuel economy is calculated by the central controller (S150) and output through the display means (S160).

Through the configuration and operation principle as described above, it is possible to naturally induce the habit of economic driving by instructing the driver to the economic driving region and the non-economic driving region, and to provide the driver with improved fuel economy by inducing economic driving.

Those skilled in the art to which the present invention pertains as described above may understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not restrictive.

The scope of the invention is indicated by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the invention. do.

Fuel efficiency measuring apparatus and method of the diesel vehicle (common rail engine) of the present invention will be able to induce economic driving habits naturally by instructing the driver the economic driving region and the non-economic driving region will be widely used in the field of automotive fuel economy.

1 is an overall configuration diagram of a fuel economy measurement device for a diesel vehicle according to an embodiment of the present invention.

Figure 2 is a block diagram of the detection means of the fuel economy measurement apparatus of a diesel vehicle according to an embodiment of the present invention.

3 is a block diagram of the control operation means of the fuel economy measurement apparatus of a diesel vehicle according to an embodiment of the present invention.

4 is a flowchart illustrating a method for measuring fuel economy of a diesel vehicle according to an embodiment of the present invention.

5 is a flow chart for inputting the actual flow rate of the fuel economy measurement method of the diesel vehicle according to an embodiment of the present invention.

6a to 6b are waveforms showing the injection pulse and the rail pressure input by the fuel economy measurement apparatus of the diesel vehicle according to an embodiment of the present invention.

FIG. 6C is a view illustrating secondary waveforms of an apparatus for measuring fuel efficiency of a diesel vehicle according to an exemplary embodiment of the present invention. FIG.

Explanation of symbols on the main parts of the drawings

100 detection means 110 injector injection pulse detection unit

120: rail pressure detection unit 130: speed pulse detection unit

140: GPS data receiving unit 200: control operation means

205: injection pulse calculation unit 210: AD converter

215: distance data selection unit 220: GPS data calculation unit

225: speed pulse calculation unit 230: second waveform operation unit

235: injector injection amount calculation unit 240: moving distance calculation unit

245: data storage unit 250: central control unit

255: input control unit 300: display means

400: input means

Claims (6)

Detection means for detecting injector injection pulses of a diesel common rail engine, voltage detection of a rail pressure sensor, speed pulse detection, and GPS data; The injection pulse of the data detected by the detection means is converted into data for operation control, the detected voltage is converted into data for operation control, the detected GPS data is converted into data for operation control, and the detected speed pulse is converted into data. Data is converted to enable arithmetic control, and the converted injection pulses and voltages are converted into secondary waveforms and converted into injection times, and the converted GPS data and speed pulses are converted into vehicle travel distances, and the injection times and movements are performed. Distance is converted into an injection amount and a moving distance based on the actual oil flow rate and the moving distance input, and a control calculation means for calculating based on the injection amount and the moving distance; Display means for displaying data transmitted through the control operation means or informing the driver of the state of the vehicle by sound through the transmitted data and commands; And an input means for receiving a command required for operation provided to the driver and transmitting the command to the control operation means. The method of claim 1, The detection means, An injector injection pulse detection unit for detecting an injector injection pulse of a diesel common rail engine; A rail pressure detector for detecting a voltage of a rail pressure sensor for detecting a pressure of a common rail of a diesel common rail engine; A speed pulse detector for detecting a speed pulse by a speed sensor of a diesel vehicle (common rail); An apparatus for measuring fuel efficiency of a diesel vehicle, comprising a GPS data receiver for receiving GPS data. The method of claim 1, The control operation means, An injection pulse calculation unit for converting the injector injection pulses detected by the detection means into data to enable arithmetic control; An AD converter for converting the voltage detected by the detection means into data to enable arithmetic control; A distance data selection unit for automatically determining whether to connect with an external GPS terminal and automatically selecting a speed sensor or an external GPS terminal; A GPS data calculation unit for converting the GPS data detected by the detection unit into data to enable arithmetic control; A speed pulse calculating unit for converting the speed pulse detected by the detecting means into data so that arithmetic control is possible; A secondary waveform calculator for generating a secondary waveform based on the data inputted from the injection pulse calculator and the AD converter; An injector injection amount calculation unit for converting the data calculated by the secondary waveform operation unit into injection time; A movement distance calculator for converting the data calculated by the GPS data operator or the speed pulse operator into the movement distance of the vehicle after being selected by the distance data selector; A data storage unit for storing data information on driving until the vehicle is stopped and stopped again; The injection time and moving distance processed by the injector injection amount calculating unit and the moving distance calculating unit are converted into the injection amount and the moving distance by a formula determined based on the actual oil flow rate and the moving distance input based on the input method, and based on the injection amount and the moving distance. A central control unit for calculating fuel economy and controlling display means with the calculated data or generating data to be stored in the data storage unit, and executing a command inputted to an input control unit; And an input control unit for analyzing the input signal transmitted from the input unit and converting the data required for operation into the central control unit. The fuel economy measurement apparatus of a diesel vehicle (common rail engine), characterized in that it comprises a. The method of claim 1, The display means, A display unit for displaying data transmitted through the control operation means; And a non-economic driving zone notification unit for notifying the driver of the state of the vehicle by sound through data and commands transmitted through the control operation means. A mode selection step for causing a user to select a setting mode or an operation mode; An initialization step of initializing driving information stored in the data storage unit when the setting mode is selected; An information acquiring step for acquiring a corresponding fuel flow rate and a travel distance after inputting the fuel flow rate and a travel distance which are re-lubricated after the actual driving; A data storage step of storing the obtained information in a data storage unit; A fuel economy calculation step of calculating fuel economy by converting the injection amount and the movement distance based on the stored data information; And an output step of outputting the calculated fuel efficiency to a display unit. The method of claim 5, The information acquisition step, A mode selection step for allowing the user to select a setting mode or an operation mode, An initialization step for initializing driving information stored in the data storage unit when the setting mode is selected; An information input step of inputting the fuel flow rate and travel distance which are re-lubricated after the actual driving; A fuel consumption measurement method for a diesel vehicle, comprising the step of obtaining the driving information for obtaining the corresponding fuel flow rate and the distance traveled at all times.

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