KR101786655B1

KR101786655B1 - Method for controlling responsibility of fuel gauge vehicle and device thereof

Info

Publication number: KR101786655B1
Application number: KR1020120134732A
Authority: KR
Inventors: 이승균
Original assignee: 현대자동차 주식회사
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2017-11-15
Also published as: KR20140067463A

Abstract

Disclosed is a fuel gauge responsiveness control method for a vehicle fuel gauge that provides responsiveness of a fuel gauge that follows a fuel consumption amount by variably controlling a damping time according to a fuel consumption condition such as a sudden acceleration of a vehicle.
The present invention relates to a method of detecting a change in resistance value of a fuel sender, an engine speed and a vehicle speed, Calculating the acceleration in the vehicle speed, and determining the fuel consumption mode by applying the acceleration and the engine speed; Determining a damping time according to a vehicle speed and a set factor value according to a fuel consumption mode, and calculating two values to determine a variable damping time; And a step of indicating to the fuel gauge the fuel amount information extracted from the resistance value of the fuel sender by applying a variable determined damping time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fuel gauge,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fuel gauge for a vehicle, and more particularly to a fuel gauge for a vehicle, which is capable of variably controlling a damping time according to a fuel consumption condition, To a method and apparatus for controlling responsiveness of a fuel gauge for a vehicle.

The vehicle is equipped with a fuel quantity sensing device that detects the remaining amount of fuel injected into the fuel tank and instructs the driver through the cluster.

3 is a view showing a configuration of a fuel quantity sensing apparatus applied to a conventional vehicle.

As shown in the figure, when the fuel sender 10 mounted on the fuel pump outputs a change in the resistance value according to the consumption of the fuel and provides it to the control unit 20, the control unit 20 sets the current running vehicle speed to the set damping Time is applied to the current fuel amount information to the fuel gauge 30 provided in the cluster.

The damping time means a predetermined delay time for the fuel gauge 30 to change from the FULL position to the EMPTY position.

For example, even if the fuel injected into the fuel tank is discharged for maintenance or other reasons and changed to 'EMPTY', the instructions of the fuel gauge 30 may indicate 'EMPTY' only after the set damping time has elapsed .

The reason for setting the damping time is set so as to prevent the fuel gauge from being abruptly changed even if a change in the oil level occurs in the fuel flow at the time of fuel injection, turning or grading.

However, in a high-performance vehicle, when the rapid acceleration or deceleration is repeated or the operation of the low-speed high load is executed and the fuel consumption is large, the fuel gauge may not follow the actual fuel amount due to the damping time.

This phenomenon may shorten the mileage when the fuel warning light is on, and may cause a start-off before the fuel warning light turns on.

That is, the damping time applied to the fuel sensing apparatus of the conventional vehicle does not accurately reflect the fuel consumption due to the rapid acceleration / deceleration repetition of the vehicle or the operation of the low-speed high load.

Accordingly, as shown in FIG. 4, the damping time (A1) is set in proportion to the vehicle speed and the fuel consumption. However, in the case where the operation of the low speed high load such as the 'A region' is repeated, Therefore, the guidance indicated by the fuel gauge is later than the actual fuel consumption, resulting in a failure to follow the actual fuel amount.

Particularly, in the case of a high-performance vehicle, there is a high possibility that the rapid acceleration and deceleration may be repeated, and the operation in the small shift and high engine speed regions is frequently performed, And the fuel gauge's instructions fail to follow the actual fuel amount.

Patent Registration No. 10-0440884 (Jul. 2004) Patent Registration No. 10-0768339 (October 11, 2007)

An object of the present invention is to provide a responsiveness of a fuel gauge that follows a fuel consumption amount by varying the damping time according to the fuel consumption condition according to the acceleration of the vehicle and the engine speed.

According to an embodiment of the present invention, there is provided a fuel control system comprising: detecting a change in resistance value of a fuel sender, an engine speed and a vehicle speed; Calculating the acceleration in the vehicle speed, and determining the fuel consumption mode by applying the acceleration and the engine speed; Determining a damping time according to a vehicle speed and a set factor value according to a fuel consumption mode, and calculating two values to determine a variable damping time; And instructing the fuel gauge to obtain fuel amount information extracted from a resistance value of the fuel sender by applying a variable determined damping time to the fuel gauge.

The determination of the fuel consumption mode is performed when the acceleration is equal to or greater than the first reference G and the engine speed is equal to or greater than the first reference RPM and is equal to or greater than the reference number of times during the first reference time, Fuel ratio mode when the engine speed is equal to or less than one reference G and the engine speed is equal to or greater than the second reference speed RPM and less than or equal to the first reference speed RPM more than the reference speed for the first reference time, When it is maintained at the reference RPM or lower for the second reference time or more, it can be determined as the high fuel consumption mode.

The factor values according to the fuel consumption mode can be set to different variable values by distinguishing between the fuel consumption mode, the fuel consumption mode and the performance ratio mode.

As described above, the present invention provides a fuel gauge responsive to the actual fuel consumption in a vehicle having a high performance vehicle acceleration or deceleration and steep deceleration, .

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing an apparatus for controlling responsiveness of a fuel gauge for a vehicle according to an embodiment of the present invention; FIG.
2 is a flowchart showing a responsiveness control procedure of a fuel gauge for a vehicle according to an embodiment of the present invention.
3 is a view showing a fuel amount sensing device applied to a conventional vehicle.
4 is a view showing a damping time set in a fuel quantity sensing apparatus applied to a conventional vehicle.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are given the same reference numerals throughout the specification.

In addition, since the components shown in the drawings are arbitrarily shown for convenience of explanation, the present invention is not necessarily limited to those shown in the drawings.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing an apparatus for controlling responsiveness of a fuel gauge for a vehicle according to an embodiment of the present invention; FIG.

Referring to FIG. 1, the present invention includes a fuel sender 101, an engine speed detector 102, a vehicle speed detector 103, a controller 104, and a fuel gauge 105.

The fuel sender 101 provides the control unit 104 with a change in the resistance value according to the consumption of the fuel injected into the fuel tank, so that the present residual fuel amount can be recognized.

The engine speed detection unit 102 detects the engine speed from the phase change of the crankshaft or the camshaft and provides the control unit 104 with information on the detected engine speed.

The vehicle speed detecting section 103 detects the current running vehicle speed from the output shaft rotational speed of the transmission and provides information on the current running vehicle speed to the control section 104. [

The control unit 104 determines the fuel consumption mode according to the acceleration of the vehicle and the engine speed, determines the factor value according to the fuel consumption mode, variably determines the damping time, applies the variable determined damping time, And outputs the amount of fuel to the fuel gauge 105 to provide responsiveness of the fuel gauge to follow a substantial fuel consumption amount.

The fuel gauge 105 is installed in the cluster and instructs the amount of fuel remaining in the fuel tank in a predetermined manner in accordance with a control signal applied from the control unit 104. [

The operation of the present invention including the functions as described above is as follows.

When the vehicle to which the present invention is applied is operated, the control unit 104 detects a change in the resistance value provided by the fuel sender 101 and recognizes the present remaining fuel amount (S101), and detects the engine speed and the traveling vehicle speed S102).

Then, the control unit 104 calculates the acceleration by calculating the vehicle speed as a unit time (S103), and analyzes the engine speed and the acceleration to determine the current fuel efficiency mode (S104).

The determination of the fuel consumption mode is made, for example, when the acceleration is 0.15 G or more, the engine speed is 3000 RPM or more, and these conditions are repeated four times or more for 30 seconds.

When the acceleration is 0.05 G or more and 0.15 G or less and the engine speed is 2000 RPM or more and 3000 RPM or less and these conditions are repeated four times or more for 30 seconds, the fuel consumption mode is determined.

Further, when the acceleration is 0.05 G or less, the engine speed is 2000 RPM or less, and these conditions are maintained for two minutes or longer, the high fuel consumption mode is determined.

If the fuel consumption mode is determined under the conditions of the engine speed and the acceleration, the controller 104 determines the factor value according to the fuel consumption mode by applying the following Table 1 (S105) and applies the following Table 2 to the vehicle speed (S106). &Lt; / RTI >

The factor values of the fuel consumption mode can be set as shown in Table 1 below.

mode High fuel consumption mode Fuel consumption mode No smoking mode FACTOR VALUE One 0.7 0.3

In addition, the damping time according to the vehicle speed can be set as shown in Table 2 below.

speed 80KPH or less 120KPH or less 150KPH or more Damping time 150 min 80min 50min

If the factor of the fuel consumption mode is determined in step S105 and the damping time is determined according to the vehicle speed in step S106, the controller 104 multiplies the two values to determine a variable damping time for controlling the output of the fuel gauge (S107 ).

If the damping time is variable, the control unit 104 instructs the fuel gauge 105 to detect the amount of fuel detected by the fuel sender 101 by applying a variable determined damping time, (S107).

For example, when the gear ratio mode is executed at 80 KPH or less, the damping time is set to 150 min x 0.3 = 45 min, and the damping time can be variably set to provide a fuel gauge precise follow-up to the fuel consumption.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

101: fuel sender 102: engine speed detector
103: vehicle speed detector 104:
105: Fuel gauge

Claims

Detecting a change in the resistance value of the fuel sender, an engine speed and a vehicle speed;
Calculating the acceleration in the vehicle speed, and determining the fuel consumption mode by applying the acceleration and the engine speed;
Determining a damping time according to a vehicle speed and a set factor value according to a fuel consumption mode, and calculating two values to determine a variable damping time;
Instructing the fuel gauge to obtain fuel amount information extracted from a resistance value of the fuel sender by applying the variable determined damping time;
Wherein the response of the fuel gauge to the vehicle is controlled by the control unit.

The method according to claim 1,
The determination of the fuel consumption mode is performed when the acceleration is equal to or greater than the first reference G and the engine speed is equal to or greater than the first reference RPM and is equal to or greater than the reference number of times during the first reference time,
Fuel ratio mode when the acceleration is equal to or greater than the second reference G and equal to or less than the first reference G and the engine speed is equal to or greater than the second reference RPM and equal to or less than the first reference RPM for the first reference time,
Fuel ratio mode when the acceleration is equal to or less than the second reference G and the engine speed is equal to or less than the second reference RPM for the second reference time or more.

The method according to claim 1,
Wherein the factor value according to the fuel consumption mode is set to a different variable value by being classified into a high fuel consumption mode, a low fuel consumption mode and a low consumption ratio mode.

A fuel sender for outputting a change in resistance value according to fuel consumption;
An engine speed detector for detecting an engine speed and providing the engine speed to a control unit;
A vehicle speed detector for detecting a running vehicle speed and providing the detected vehicle speed to a control unit;
A control unit for extracting a fuel amount from a resistance value change of the fuel sender and applying a damping time to the fuel gauge;
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Wherein the control unit is operated according to the set program to execute the method according to any one of claims 1 to 3 to variably determine the damping time and apply the variable determined damping time to the fuel gauge to instruct the fuel gauge The response of the fuel gauge of the vehicle.