KR100819999B1 - Display method for suitable traveling by car possibility distance of trip computer - Google Patents

Abstract

A method of displaying the optimum driving distance limit of a trip computer system in a vehicle is provided to display an actual driving distance limit to the driver by using driving speed, engine load, and data on an opening degree of a throttle when a warning light is turned on during driving. The method of displaying the optimum driving distance limit of a trip computer system in a vehicle comprises the step of detecting the amount of remaining fuel when an engine is a starting-on state(S202). It is determined whether the amount of the remaining fuel is below a reference value(S203). If the amount of remaining fuel is below the reference value, an alarming for the lack is generated, and then detects and stores the amount of the present-remaining fuel, a vehicle speed, an RPM value, the quantity of intake air, and a TPS-opening degree(S204,S205). It is determined whether the vehicle is an idling state(S206). In the idling state, an idling-fuel consumption is calculated(S209). In a non-idling state, it is determined whether the vehicle is in a rapid acceleration state by analyzing the TPS opening degree. In the rapid acceleration state, a rapid acceleration fuel consumption for each rapid acceleration operation is calculated. It is determined whether engine load represents a full load state or a partial load state by analyzing the RPM value and the quantity of intake air(S210). In the engine full load state, an engine load gain is set to have a value of 0.88(S211). In the engine partial load state, an engine load gain is set to have a value of 1(S212). The actual driving distance limit is calculated by using the idling-fuel consumption, the rapid acceleration fuel consumption and the engine load gain(S213).

Description

Display method for suitable traveling by car possibility distance of trip computer}

1 is a block diagram showing a system configuration of an optimal driving range display device of an in-vehicle trip computer system according to the present invention.

FIG. 2 is a flowchart illustrating an exemplary operation flow of an apparatus for displaying an optimum mileage distance of an in-vehicle trip computer system according to the present invention. FIG.

<Code Description of Main Parts of Drawing>

10: remaining fuel amount detection unit 20: vehicle speed detection unit

30: RPM detection unit 40: intake air amount detection unit

50: TPS opening value detection unit 60: control unit

70: alarm unit 80: display unit

The present invention relates to a driving distance display method for a vehicle, and in particular, when the fuel warning light is turned on due to lack of fuel while the vehicle is running, the actual driving distance with respect to the remaining fuel amount is applied by applying current driving speed, engine load, and throttle opening value data. The present invention relates to a method for displaying an optimum driving distance of an in-vehicle trip computer system that calculates and displays the result to a driver to prevent starting off due to fuel shortage.

In a conventional automobile, most of the fuel remaining in the fuel tank is detected by using a fuel gauge made of a booger, that is, a boogie position change in the fuel tank is changed to a voltage value, and a predetermined scale gauge or bar graphic type is used. It was configured to drive a digital display.

However, such a configuration is only an approximate detection of fuel remaining in the fuel tank, and also displays the remaining fuel amount according to the inclination of the fuel tank according to the road conditions, as well as accurately know the driving distance according to the remaining fuel amount. There was a problem that could not be.

Therefore, in recent years, a trip computer system including a function of detecting a residual fuel amount in a fuel tank, calculating a driving distance based on a current residual fuel amount by applying fuel efficiency set according to a vehicle type, and then instructing a driver is installed and applied to the vehicle. It is becoming. In particular, the method of calculating and displaying the driving distance that can be driven by the remaining fuel amount of the current vehicle in the conventional in-vehicle trip computer is a fuel sensor until after a certain time without shaking the fuel tank after starting the engine in the state of lubrication The average value of the fuel was detected by reading the value of, and divided by the vehicle fuel economy to calculate the available distance.

However, the above-described conventional method for calculating the traveling distance using a trip computer uses a method of simply calculating the amount of residual fuel divided by a fixed vehicle fuel economy uniformly for each vehicle. There is a problem in that an error of the driving distance value is greatly generated because a factor that directly affects the product is not considered at all.

For example, when the vehicle is started and idling for a long time, or when driving in a section with heavy traffic or congestion, or when the number of rapid accelerations is high, the fuel consumption is higher than the set fuel consumption. Since this is required, the actual travel distance is shorter than the theoretical travel distance calculated for the amount of residual fuel detected. Therefore, there is a problem in that the vehicle is stopped on the road due to lack of fuel while driving with confidence in only the driving distance indicated by the conventional trip computer.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to provide a vehicle speed and engine load, throttle from the engine ECU, such as the trip computer system in the vehicle when the fuel warning light is turned on due to lack of fuel during vehicle operation (Throttle) Whether the engine is in the P / L performance ratio condition (14.7: 1) or WOT performance ratio condition (13: 1), whether the current vehicle is in idling or rapid acceleration state by receiving the opening value data. The vehicle is configured to determine the actual driving distance compared to the remaining fuel amount and to display it to the driver by applying fuel consumption and vehicle fuel economy according to the actual vehicle condition, thereby preventing starting off due to fuel shortage. An object of the present invention is to provide a method of displaying an optimal range of travel of a trip computer system.

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The method of the present invention for achieving the above object is an indication of the optimal driving distance of the in-vehicle trip computer system consisting of a residual fuel amount detection unit, vehicle speed detection unit, RPM detection unit, intake air quantity detection unit, TPS opening value detection unit, control unit, alarm unit, display unit A display method of a device, comprising: a first step of detecting a residual fuel amount at a predetermined time interval when a vehicle engine is started; A second step of determining whether the current remaining fuel amount is lower than the reference value; A third step of generating a fuel shortage alarm if the remaining fuel amount is lower than a reference value, and detecting and storing the current remaining fuel amount, vehicle speed, RPM value, intake air amount, and TPS opening value as a result of the determination in the second step; A fourth step of determining whether the current vehicle is in an idling state by analyzing the vehicle speed; A fifth step of calculating idle fuel consumption when the vehicle is in an idle state as a result of the determination in the fourth step; A sixth step of determining whether the current vehicle is in a rapid acceleration state by analyzing the TPS opening value if the vehicle is not in an idle state as a result of the determination in the fourth step; A seventh step of calculating a rapid acceleration fuel consumption per number of rapid accelerations when the vehicle is in a rapid acceleration state as a result of the determination in the sixth step; An eighth step of determining whether the current engine load state of the vehicle is in the engine full load state (WOT performance ratio condition = 13) or in the engine partial load state (P / L performance ratio condition = 14.7) by analyzing the RPM value and the intake air amount; step; A ninth step of setting the engine load GAIN value to 0.88 if the vehicle engine load state is the engine full load state as a result of the determination in the eighth step; A tenth step of setting the engine load GAIN value to 1 if the vehicle engine load state is the engine partial load state as a result of the determination in the eighth step; Applying the idle fuel consumption, rapid acceleration fuel consumption, engine load GAIN value to calculate the actual driving distance of the current vehicle through a preset equation, and displays the calculated actual driving distance through a predetermined display device Step 11; characterized in that consisting of.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to deviate from the gist of the present invention.

1 is a block diagram showing a system configuration of an optimal driving range display device of an in-vehicle trip computer system according to the present invention.

As shown in FIG. 1, the apparatus for displaying the optimum distance of an in-vehicle trip computer system according to the present invention includes a residual fuel amount detecting unit 10, a vehicle speed detecting unit 20, an RPM detecting unit 30, and an intake air quantity detecting unit 40. ), The TPS opening value detection unit 50, the control unit 60, the alarm unit 70, and the display unit 80.

The residual fuel amount detection unit 10 detects the residual fuel amount of the fuel tank through a predetermined fuel detection sensor and transmits it to the controller 60.

The vehicle speed detection unit 20 detects a traveling speed of the vehicle through a vehicle speed sensor and transmits the detected vehicle speed to the controller 60.

The RPM detection unit 30 detects the engine speed through the RPM sensor and transmits it to the control unit 60.

The intake air amount detecting unit 40 detects the amount of air sucked into the engine and transmits it to the control unit 60.

The TPS opening value detection unit 50 detects the opening value of the throttle valve through the throttle position sensor and transmits it to the control unit 60.

In this case, the above-described residual fuel amount detection method, vehicle speed detection method, engine speed detection method, engine suction air amount detection method, and TPS opening value detection method are obvious to those skilled in the art, and further detailed description thereof will be omitted.

The control unit 60 stores data output from the residual fuel amount detecting unit 10, the vehicle speed detecting unit 20, the RPM detecting unit 30, the intake air quantity detecting unit 40, and the TPS opening value detecting unit 50, and based on this. In addition, an alarm is generated when the remaining fuel amount is insufficient, and at the same time, the actual running distance with respect to the remaining fuel amount is calculated by the actual driving distance calculation method described below.

The alarm unit 70 generates a fuel shortage alarm under the control of the controller 60.

The display unit 80 displays actual driving distance information under the control of the control unit 60. Preferably, the display unit 80 expresses the actual driving distance output from the control unit 60 as a numerical value. It may be provided as).

The operation flow of the optimum traveling distance display apparatus of the in-vehicle trip computer system according to the present invention configured as described above will be described in detail with reference to FIG. 2.

First, as the engine start of the vehicle is turned on and the driving starts (S201), the residual fuel amount detection unit 10 detects the residual fuel amount at a predetermined time interval and transmits the residual fuel amount to the control unit 60 (S202).

Subsequently, the controller 60 determines whether the current residual fuel amount is lower than or equal to the reference value (S203), and if the residual fuel amount is lower than or equal to the reference value, generates a fuel low alarm such as turning on a fuel warning light (S204). At the same time, the residual fuel amount detection unit 10, vehicle speed detection unit 20, RPM detection unit 30, intake air amount detection unit 40, the current residual fuel amount detected by the TPS opening value detection unit 50, vehicle speed, RPM value, Intake air quantity Qair and TPS opening value are received and stored (S205).

Subsequently, the controller 60 analyzes the vehicle speed to determine whether the current vehicle is in the idling state (vehicle speed = 0) (S206), and as a result of the determination in the step S206, if the vehicle is in the idling state In this case, the idle fuel consumption amount is calculated. (S207) In this case, the idle fuel consumption amount can be calculated by multiplying the idle time by the fuel consumption per hour proportional to the engine speed.

In addition, as a result of the determination in step S206, if the vehicle is not in the idling state, the controller 60 analyzes the TPS opening value to determine whether the current vehicle is in a rapid acceleration state (ΔTPS opening> reference opening X). (S208), and as a result of the determination in the step (S208), if the vehicle is in a rapid acceleration state, a sudden acceleration fuel consumption per number of rapid accelerations is calculated. (S209) At this time, the rapid acceleration fuel consumption amount Can be calculated by multiplying the number of rapid accelerations by the correction amount per one rapid acceleration.

Subsequently, the controller 60 analyzes the RPM value and the intake air amount to determine whether the engine load state of the current vehicle is the engine full load state (WOT performance ratio condition = 13) or the engine partial load state (P / L performance ratio condition = 14.7). If it is determined whether or not (S210), and the determination result in the step (S210), if the vehicle engine load state is the engine full load state, the WOT performance ratio condition (= 13) to P / L performance ratio condition (= 14.7) Set the engine load GAIN value to 0.88 by dividing (S211).

Further, as a result of the determination in step S210, if the vehicle engine load state is the engine partial load state, the engine load GAIN value is divided by the P / L performance ratio condition (= 14.7) divided by the P / L performance ratio condition (= 14.7). Set to 1 (S212).

Subsequently, the control unit 60 calculates the actual running distance of the current vehicle through a preset equation by applying the idling fuel consumption, the rapid acceleration fuel consumption, and the engine load GAIN value calculated in each step (S213). In addition, the actual driving distance calculated in the step S213 is displayed on the display unit 80. In operation S214, the actual driving distance is defined by the following equation.

Equation 1

RD = (F0-F1-F2) * (RT * GA)

Where RD: actual distance traveled

F0: remaining fuel level

F1: idle fuel consumption

F2: Accelerated Fuel Consumption

RT: Fixed Fuel Economy

GA: Engine Load GAIN Value

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

The present invention as described above, in the method of calculating the actual running distance with respect to the remaining fuel amount while driving the vehicle by calculating the actual running possible distance with respect to the remaining fuel amount by applying the current vehicle speed, engine load, throttle opening value data, etc. By displaying to the driver, there is an advantage that can prevent the starting off due to lack of fuel.

Claims (7)

delete Detecting a residual fuel amount at predetermined time intervals when the vehicle engine is started; A second step of determining whether the current remaining fuel amount is lower than the reference value; A third step of generating a fuel shortage alarm if the remaining fuel amount is lower than a reference value, and detecting and storing the current remaining fuel amount, vehicle speed, RPM value, intake air amount, and TPS opening value as a result of the determination in the second step; A fourth step of determining whether the current vehicle is in an idling state by analyzing the vehicle speed; A fifth step of calculating idle fuel consumption when the vehicle is in an idle state as a result of the determination in the fourth step; A sixth step of determining whether the current vehicle is in a rapid acceleration state by analyzing the TPS opening value if the vehicle is not in an idle state as a result of the determination in the fourth step; A seventh step of calculating a rapid acceleration fuel consumption per number of rapid accelerations when the vehicle is in a rapid acceleration state as a result of the determination in the sixth step; An eighth step of determining whether the current engine load state of the vehicle is in the engine full load state (WOT performance ratio condition = 13) or in the engine partial load state (P / L performance ratio condition = 14.7) by analyzing the RPM value and the intake air amount; step; A ninth step of setting the engine load GAIN value to 0.88 if the vehicle engine load state is the engine full load state as a result of the determination in the eighth step; A tenth step of setting the engine load GAIN value to 1 if the vehicle engine load state is the engine partial load state as a result of the determination in the eighth step; Applying the idle fuel consumption, rapid acceleration fuel consumption, engine load GAIN value to calculate the actual driving distance of the current vehicle through a preset equation, and displays the calculated actual driving distance through a predetermined display device 11. The method of displaying an optimum driving distance of the in-vehicle trip computer system, comprising: a step. The method of claim 2, The actual mileage distance calculated in the eleventh step is calculated by the following equation, the optimum travel distance display method of the in-vehicle trip computer system. RD = (F0-F1-F2) * (RT * GA) (Where RD: actual driving distance, F0: remaining fuel amount, F1: idle fuel consumption, F2: rapid acceleration fuel consumption, RT: fixed fuel consumption, GA: engine load GAIN value) The method of claim 2 or 3, The idle fuel consumption amount is calculated by multiplying the idling time by the fuel consumption per hour proportional to the engine speed, the optimum traveling distance display method of the in-vehicle trip computer system. The method of claim 2 or 3, The rapid acceleration fuel consumption amount is calculated by multiplying the number of rapid acceleration by the correction amount per rapid acceleration, the optimum traveling distance display method of the in-vehicle trip computer system. The method of claim 2 or 3, The engine load GAIN value of 0.88 is calculated by dividing the WOT performance ratio condition (= 13) by the P / L performance ratio condition (= 14.7) when the vehicle engine load state is the engine full load state. How to display distance. The method of claim 2 or 3, The engine load GAIN value 1 is calculated by dividing the P / L performance ratio condition (= 14.7) by the P / L performance ratio condition (= 14.7) when the vehicle engine load state is the engine partial load state. How to display the optimum distance traveled.

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