JPH11190655A - Residual fuel quantity display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a residual fuel quantity display device for a vehicle that can correctly display the residual quantity being hardly influenced by the non- horizontal state of a vehicle when the vehicle is inclined. SOLUTION: A driving control means 33-2 controlling to drive a display means 7 so as to display the residual fuel quantity makes the display means 7 display the residual fuel quantity on the basis of the command value computed by a computing means 33-1 when an inclination detecting means 5 detects a horizontal state during a period from the ON time of an ignition switch to the ON time of an engine. When the inclination detecting means 5 detects a non-horizontal state immediately after the ignition switch is turned on, the driving control means 33-2 makes the display means 7 display the residual fuel quantity on the basis of the command value stored in a storage means 8, and this display is held until the engine is turned on while the inclination detecting means 5 detects the non-horizontal state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel level display device for a vehicle, such as a fuel gauge for a vehicle, which displays the fuel level in a fuel tank of the vehicle.

[0002]

2. Description of the Related Art Conventionally, a fuel gauge mounted on a vehicle is:
And a liquid level detecting means for detecting a liquid level of the fuel in the fuel tank. The liquid level detecting means has a contact that slides on the resistor according to the position of the float floating on the fuel level, and outputs a voltage obtained by dividing the voltage applied to both ends of the resistor to the contact. Such a configuration is generally employed.
Then, the electric characteristic of the liquid level detecting means, that is, the change of the output voltage is converted and the remaining amount of the fuel is displayed. However, when the vehicle is tilted, the liquid level is tilted with respect to the fuel tank, so that there is a disadvantage that the remaining amount of fuel cannot be accurately displayed.

[0003] Conventionally, a number of signals detected by the liquid level detecting means are averaged to display the remaining amount, and further, when the vehicle is stopped, the averaging time is shortened to improve responsiveness. When a liquid level detection signal having a variation or more is generated, a signal is averaged by replacing the signal with a preset upper and lower limit value of the variation.

[0004]

However, in the above-described conventional fuel gauges for vehicles, the remaining fuel level is displayed by including a liquid level detection signal in a state unsuitable for measuring the remaining fuel quantity. There was a problem.

For example, when the vehicle is not in a horizontal state, that is, in a non-horizontal state, the liquid level of the fuel in the fuel tank is inclined and deviates, so that the liquid level of the liquid level is different from that in the horizontal state. If the remaining amount is displayed by the liquid level detection signal corresponding to the above, a correct value cannot be displayed.

Accordingly, the present invention has been made in view of the above-described problems,
An object of the present invention is to provide a vehicle fuel remaining amount display device capable of accurately displaying a remaining amount even when the vehicle is not inclined and is not in a horizontal state, with almost no influence.

[0007]

According to a first aspect of the present invention, there is provided a display device for displaying an indicated value, a combustion tank for a vehicle, as shown in FIG. A fuel sensor 1 for detecting a liquid level of fuel in the fuel cell and generating a fuel signal, and a calculating means 33-1 for inputting a fuel signal from the fuel sensor and calculating an indicated value of a remaining fuel amount.
A drive control means 33-2 for controlling the display means to display the remaining fuel amount by driving the display means; and when the ignition switch is turned off, the drive control means causes the display means to display. A storage means 8 which stores the indicated value of the remaining fuel amount in place of the previous storage, and which can hold the storage even during the period when the ignition switch is off;
A tilt detecting means for detecting a non-horizontal state in which the vehicle is tilted by a predetermined angle or more and a horizontal state other than the predetermined angle, wherein the drive control means comprises: When detecting the horizontal state, the remaining amount of fuel is displayed on the display means based on the instruction value calculated by the calculating means, and immediately after the ignition switch is turned on, the inclination detecting means detects the non-horizontal state. And displaying the remaining fuel amount on the display unit based on the instruction value stored in the storage unit, and holding the display until the engine is turned on while the inclination detecting unit detects a non-horizontal state. The present invention resides in a vehicle fuel level display device.

With the above structure, the drive control means 33-2 for controlling the display means 7 to display the fuel remaining amount on the display means is provided between the ignition switch and the engine. When the sensor detects the horizontal state, the display unit 7 displays the remaining fuel amount based on the instruction value calculated by the calculation unit 33-1. And
Immediately after the ignition switch is turned on, if the inclination detecting means 5 detects a non-horizontal state, the driving control means 33-
2 displays the remaining fuel amount on the display means 7 based on the instruction value stored in the storage means 8, and holds this display until the engine is turned on while the inclination detecting means 5 detects the non-horizontal state.

Therefore, during the period from the time when the ignition switch is turned on to the time when the engine is turned on, the display on the display means 7 is maintained while the inclination detecting means 5 detects the non-horizontal state,
The remaining fuel amount is not displayed on the display means 7 based on the instruction value calculated by the calculating means 33-1. Even if the ignition switch is turned on when the vehicle is on a slope,
Until the engine is started, the display means 7 displays the same value as the indicated value of the remaining fuel amount which is displayed on the display means 7 and stored in the storage means 8 when the ignition switch is turned off. Therefore, even if the vehicle is stopped on a slope and the liquid level of the fuel in the combustion tank of the vehicle changes, the display based on the fuel signal generated by the fuel sensor 1 by detecting this is not performed.

[0010] The present invention has been made to solve the above-mentioned problems.
According to the present invention, as shown in the basic configuration diagram of FIG. 1, in the vehicle fuel remaining amount display device according to claim 1, the drive control unit, when there is no instruction value stored in the storage unit, The fuel amount is displayed on the display means based on the instruction value calculated by the calculation means.

According to the above construction, in addition to the operation of the first aspect of the present invention, when the indicated value is not stored in the storage means 8, the remaining fuel amount is displayed based on the indicated value calculated by the calculating means 33-1. 7, the display means 7 does not lose any display even if the indication value of the remaining fuel amount is not stored in the storage means 8 when the vehicle is on a slope and the ignition switch is turned on.

A third aspect of the present invention has been made to solve the above problems.
According to the invention described above, as shown in the basic configuration diagram of FIG. 1, the vehicle fuel level display device according to claim 1 or 2 further includes a replenishment detection unit 33-3 that detects whether fuel is replenished, The drive control means, immediately after the ignition switch is turned on, when the inclination detection means is detecting a non-horizontal state, when the supply detection means detects replenishment,
The difference between the indicated value stored in the storage means and the indicated value calculated by the calculating means is calculated, and the remaining fuel amount is determined based on the indicated value obtained by adding the difference to the indicated value stored in the storing means. The information is displayed on the display means.

According to the above construction, in addition to the operation of the invention described in claim 1 or 2, immediately after the ignition switch is turned on,
The inclination detecting means 5 detects the non-horizontal state, and the replenishment detecting means 3
When 3-3 detects that there is replenishment, the difference between the indicated value stored in the storage unit 8 and the indicated value calculated by the calculating unit 33-1 is calculated, and the difference is stored in the storage unit 8. Since the remaining fuel amount is displayed on the display means 7 based on the indicated value added to the indicated value, even if the fuel is refueled when the ignition switch is turned off on a slope, the indicated value increased by refueling is displayed on the display means 7. The displayed value of the remaining fuel amount is displayed, and furthermore, the change in the liquid level of the fuel in the combustion tank of the vehicle caused by stopping on the slope is canceled out.

A fourth aspect of the present invention has been made to solve the above problem.
According to the present invention, as shown in the basic configuration diagram of FIG. 1, in the fuel remaining amount display device for a vehicle according to claim 3, the replenishment detection means is stored in the storage means immediately after an ignition switch is turned on. It is characterized by having ignition-on-immediately detecting means 33-31 for detecting the difference between the indicated value and the indicated value calculated by the calculating means and detecting the presence of refueling when the difference is equal to or greater than a predetermined value. And

With the above construction, in addition to the operation of the third aspect of the present invention, the fuel supply immediately after the ignition switch is turned on, that is, whether or not fuel is supplied, is stored in the storage means 8 by the ignition immediately after detection means 33-31. The difference between the indicated value and the indicated value calculated by the calculating means 33-1;
Since the difference is detected when the difference is equal to or greater than a predetermined value, even if the fuel is supplied on the slope before the ignition switch is turned on, the fuel level in the combustion tank of the vehicle caused by stopping on the slope is generated. The change in the surface level is canceled, and the presence / absence of refueling can be detected with higher accuracy than when the determination is made simply based on the change in the liquid level.

A fifth aspect of the present invention has been made to solve the above problems.
As shown in the basic configuration diagram of FIG. 1, the described invention has a display means 7 for displaying an indicated value and a fuel sensor 1 for detecting a liquid level of fuel in a combustion tank of a vehicle and generating a fuel signal.
Calculating means 33-1 for inputting a fuel signal from the fuel sensor and calculating an indicated value for indicating a remaining fuel amount;
A drive control means 33-2 for controlling the display means to display the remaining fuel amount on the display means, a replenishment detection means 33-3 for detecting the presence or absence of fuel replenishment; A tilt detecting means 5 for detecting a non-horizontal state and other horizontal states, wherein the drive control means detects the non-horizontal state during a period from turning on an ignition switch to starting traveling. When the replenishment is detected by the replenishment detection means, the difference between the preceding and following indicated values calculated by the calculating means is calculated, and the difference is added to the previous indicated value, and the indicated value is set as the target value. The vehicle fuel remaining amount display device displays the fuel remaining amount on the display means based on a value incremented by a constant value every first constant time.

With the above structure, the drive control means 33-2 for controlling the display means 7 to display the fuel remaining amount on the display means is provided. When the non-horizontal state is detected and the replenishment detecting means 33-3 detects the presence of replenishment, the difference between the preceding and following indicated values calculated by the calculating means 33-1 is obtained, and this difference is added to the previous indicated value. As the target value is set as a target value, the remaining fuel amount is displayed on the display means 7 based on a value that is incremented by a constant value at every first constant time toward the target value. Even if refueling is performed during that time, the indicated value increased by refueling is displayed on the display means 7. Therefore, even if refueling is performed on the sloped land between the time the ignition switch is turned on and the start of traveling, the indicated value of the remaining fuel level is displayed, which cancels the change in the liquid level of the fuel in the combustion tank of the vehicle that occurred on the sloped land. Become so. In addition, by setting the first fixed time to be short, the indicated value is promptly displayed on the display means 7.

Claim 6 has been made to solve the above problem.
According to the present invention, as shown in a basic configuration diagram of FIG. 1, in the fuel remaining amount display device for a vehicle according to claim 5, the drive control means detects the inclination during a period from turning on an ignition switch to starting driving. When the means is detecting a horizontal state, when the replenishment detecting means detects replenishment, the instruction value calculated by the calculating means is set as a target value and a constant value is set toward the target value at the first constant time interval. The remaining fuel amount is displayed on the display means based on the incremented value.

According to the above construction, in addition to the operation of the fifth aspect of the present invention, the inclination detecting means 5 detects the horizontal state from the time the ignition switch is turned on until the start of traveling, and the replenishment detecting means 33-3 determines that replenishment is present. During the detection, the indication value calculated by the calculation means 33-1 is set as a target value, and the remaining fuel amount is displayed on the display means 7 on the basis of a value which is increased by a certain value at every first certain time toward the target value. Because it is displayed
At the time of refueling on a flat ground, the display value calculated by the calculating means 33-1 is displayed on the display means 7 based on the liquid level which changes every moment. In addition, by setting the first fixed time to be short, the indication value is promptly displayed on the display means 7 even when refueling even on a level ground.

A seventh aspect of the present invention has been made to solve the above problems.
According to the present invention, as shown in a basic configuration diagram of FIG. 1, in the vehicle fuel remaining amount display device according to claim 6, the drive control means detects the inclination during a period from turning on an ignition switch to starting driving. When the means detects a horizontal state, when the replenishment detecting means detects no replenishment, the instruction value calculated by the calculating means is set as a target value toward the target value and the second value longer than the first fixed time is set to a second value. The remaining fuel amount is displayed on the display means on the basis of a value that is increased or decreased by a constant value at regular time intervals.

According to the above construction, in addition to the operation of the sixth aspect of the present invention, the inclination detecting means 5 detects the horizontal state and the replenishment detecting means 33-3 detects the absence of replenishment from the time the ignition switch is turned on until the start of traveling. During the detection, the indication value calculated by the calculating means 33-1 is set as a target value, and the remaining fuel amount is displayed on the display means 7 based on a value which is increased or decreased by a constant value at a relatively long fixed time toward the target value. Since the display is performed, the response of the display performed using the indicated value calculated by the calculating unit 33-1 as a target value when there is no refueling is slower than at the time of refueling. Fluctuates, the indication value is less affected by this fluctuation.

Claim 8 has been made to solve the above problem.
As shown in the basic configuration diagram of FIG. 1, the described invention has a display means 7 for displaying an indicated value and a fuel sensor 1 for detecting a liquid level of fuel in a combustion tank of a vehicle and generating a fuel signal.
And a first calculating means 33-that inputs a fuel signal from the fuel sensor and calculates an indicated value for indicating the remaining fuel amount.
1, a drive control unit 33-2 for controlling the display unit to display the remaining fuel amount by driving the display unit, and detecting a non-horizontal state in which the vehicle is tilted by a predetermined angle or more and a horizontal state other than this. And the present indication value for every predetermined time when it is determined that there is a predetermined fuel consumption per unit time when the tilt detection means detects a non-horizontal state from the time the engine is turned on until the start of traveling. Calculating means 33-4 for sequentially subtracting a predetermined value from the above to calculate an instruction value of the remaining fuel amount.
The drive control means, based on an instruction value calculated by the second calculation means, when the tilt detection means detects a non-horizontal state from the time the engine is turned on until the start of traveling. A fuel remaining amount display device for a vehicle, characterized in that the remaining amount is displayed on the display means.

With the above configuration, the drive control means 33-2 for controlling the display means 7 to drive the display means to display the remaining fuel amount is used. When the horizontal state is detected, the remaining amount of fuel is determined based on a value obtained by subtracting a fixed value at every second time from the indicated value calculated by the second calculating means 33-4 toward the target value as a target value. Is displayed on the display means 7.

Therefore, when the inclination detecting means 5 detects the non-horizontal state from the time when the engine is turned on to the time when the vehicle starts running, it is determined that there is a predetermined fuel consumption per unit time, and a predetermined fuel consumption is determined from the current instruction value every predetermined time. The values are sequentially subtracted, and the indication value of the remaining fuel quantity based on the indication value of the remaining fuel quantity is displayed on the display means 7, and the remaining fuel quantity is displayed on the display means 7 based on the indication value calculated by the calculation means 33-1. There is no display. Therefore, even if the liquid level of the fuel in the combustion tank of the vehicle changes on a slope when the vehicle is stopped, this is not detected and the display based on the fuel signal generated by the fuel sensor 1 is not performed. The decrease in the remaining fuel amount consumed by turning on is reflected in the indicated value with a certain degree of accuracy.

Claim 9 has been made to solve the above-mentioned problem.
According to the present invention, as shown in the basic configuration diagram of FIG. 1, in the vehicle fuel remaining amount display device according to claim 8, the drive control means comprises: When detecting the horizontal state, the first
The indication value calculated by the calculating means is set as a target value, and the fuel remaining amount is displayed on the display means based on a value which is increased or decreased by a constant value at every second fixed time toward the target value.

With the above arrangement, in addition to the operation of the invention described in claim 8, when the inclination detecting means 5 detects a horizontal state from the time the engine is turned on until the start of running, the first calculating means 33-1 The remaining fuel amount is displayed on the display means 7 on the basis of a value that is increased or decreased by a fixed value at every second fixed time toward the target value, using the indicated value calculated as a target value. The instruction value calculated by the calculating means 33-1 based on the liquid level which changes every moment is displayed. Moreover, by setting the second fixed time to be longer, the response of the display performed with the indicated value calculated by the calculating means 33-1 as the target value when there is no refueling becomes slow, and there is no refueling on a flat ground. Nevertheless, if the liquid level fluctuates, the indicated value is less affected by this fluctuation.

Claim 1 has been made to solve the above problem.
As shown in the basic configuration diagram of FIG. 1, the invention described in claim 0 further comprises a replenishment detecting means 33-3 for detecting the presence or absence of refueling in the vehicle fuel level display device according to claim 8 or 9. The drive control means, when the inclination detection means detects a non-horizontal state during a period from the time when an ignition switch is turned on to when traveling starts, and when the supply detection means detects that replenishment is present, the first arithmetic means The difference between the preceding and following indicated values calculated by the above is taken, and the indicated value obtained by adding the difference to the previous indicated value is set as a target value toward the target value, and the second value is set.
The remaining fuel amount is displayed on the display means based on a value incremented by a constant value at every first time shorter than the predetermined time.

According to the above construction, in addition to the function of the invention described in claim 8 or 9, the inclination detecting means 5 detects the non-horizontal state from the time the ignition switch is turned on to the start of traveling, and the replenishment detecting means 33-3. When the replenishment is detected, the difference between the preceding and following indicated values calculated by the first calculating means 33-1 is taken, and the difference is added to the previous indicated value to set the indicated value as the target value. Is displayed on the display means 7 on the basis of the value incremented by a constant value for each relatively short period of time, so that even if the fuel is supplied on the sloped land between the time the ignition switch is turned on and the start of traveling,
An indication value of the remaining fuel amount that cancels the change in the liquid level of the fuel in the combustion tank of the vehicle caused on the slope is displayed, and the indication value calculated when the response of the display is not refueling is set as the target value. Faster than the display that takes place,
An indication value that immediately reflects an increase in the liquid level due to refueling is displayed.

Claim 1 has been made to solve the above problems.
According to a first aspect of the invention, as shown in the basic configuration diagram of FIG. 1, in the vehicle fuel remaining amount display device according to the tenth aspect, the drive control means includes:
When the inclination detecting means is detecting a horizontal state, when the replenishment detecting means detects the presence of replenishment, the instruction value calculated by the first calculating means is set as a target value toward the target value and the second value is calculated. The remaining fuel amount is displayed on the display means based on a value that is increased or decreased by a fixed value at every first fixed time shorter than the fixed time.

According to the above construction, in addition to the operation of the tenth aspect, the inclination detecting means 5 detects the horizontal state from the time the engine is turned on to the start of running, and the replenishment detecting means 33-.
When the first computing means 3 detects that replenishment is present,
Since the indicated value calculated by 3-1 is set as a target value, the remaining fuel amount is displayed on the display means 7 based on a value that is increased or decreased by a constant value at a relatively short fixed time interval toward the target value.
Even if refueling is performed on a level ground between the time the engine is turned on and the start of traveling, the indicated value calculated by the first calculating means 33-1 based on the constantly changing liquid level is displayed when refueling on the level ground. In addition, the responsiveness of the display is faster than the display performed using the indicated value calculated when there is no refueling as the target value, and the indicated value reflecting the increase in the liquid level due to the refueling is displayed quickly.

Claim 1 has been made to solve the above problem.
As shown in the basic configuration diagram of FIG. 1, the invention according to claim 2 further comprises a replenishment detecting means 33-3 for detecting the presence or absence of refueling in the vehicle fuel level display device according to claim 8. The drive control means calculates by the first calculation means when the tilt detection means detects a horizontal state, when the replenishment detection means detects replenishment, during a period from the turning on of an ignition switch to the start of traveling. Using the indicated value as a target value, the remaining fuel amount is displayed on the display means based on a value that is incremented by a constant value at every first constant time shorter than the second constant time toward the target value, and the replenishment is performed. When the detection means detects that there is no replenishment, the command value calculated by the first calculation means is used as a target value, and the remaining fuel amount is increased or decreased by a predetermined value at every second predetermined time toward the target value. Before Characterized in that to be displayed on the display unit.

According to the above construction, in addition to the operation of the invention described in claim 8, the inclination detecting means 5 detects the horizontal state from the time the ignition switch is turned on to the start of traveling, and the replenishment detecting means 33-3 determines that replenishment is present. When detecting, the first
The indication value calculated by the calculating means 33-1 is set as a target value, and the remaining fuel amount is displayed on the display means 7 based on a value which is incremented by a constant value at every second fixed time which is relatively short toward the target value. When the replenishment detecting means 33-3 detects that there is no replenishment, the instruction value calculated by the first calculating means 33-1 is set as a target value and a constant value is set at a relatively long time interval toward the target value. Since the remaining fuel amount is displayed on the display means based on the value that has been increased / decreased, the responsivity of the display when the fuel is not refueled when refueling on level ground performed from the time when the ignition switch is turned on until the start of traveling is increased. Without using the calculated indicated value as the target value, the indicated value is promptly displayed based on the value increased or decreased toward the target value.

Claim 1 has been made to solve the above problem.
According to a third aspect of the invention, as shown in the basic configuration diagram of FIG. 1, in the vehicle fuel level display device according to any one of the fifth, tenth, and twelfth aspects, the replenishment detection means is provided when an ignition switch is turned on. Until the start of traveling, the difference between the preceding and following indicated values calculated by the calculating means or the first calculating means is taken, and when the difference is equal to or greater than a predetermined value, the stop detection for detecting the presence of refueling is performed. It is characterized by having means 33-32.

With the above structure, in addition to the functions of the invention according to claims 6, 7 and 12, in addition to the replenishment of fuel from the time when the ignition switch is turned on until the start of running of the engine, the presence / absence of refueling is determined by the stop detecting means 33. -32 takes the difference between the preceding and following indicated values calculated by the calculating means or the first calculating means 33-1 and detects that fuel is replenished when the difference is equal to or greater than a predetermined value. Even if the fuel is supplied between the time the switch is turned on and the engine starts running, the change in the liquid level of the fuel in the combustion tank of the vehicle caused by stopping on the slope will be canceled out. The presence / absence of refueling can be detected with higher accuracy than when the determination is made based on the change in

Claim 1 has been made to solve the above problems.
As shown in the basic configuration diagram of FIG. 1, the invention described in FIG. 4 includes a display means 7 for displaying an indicated value and a fuel sensor 1 for detecting a liquid level of fuel in a combustion tank of a vehicle and generating a fuel signal. And a first calculating means 33 for inputting a fuel signal from the fuel sensor and calculating an indicated value for indicating a remaining fuel amount.
-1, a drive control unit 33-2 for controlling the display unit to display the remaining fuel amount by driving the display unit, and a non-horizontal state in which the vehicle is tilted by a predetermined angle or more and a horizontal state other than that. When the inclination detecting means 5 detects the non-horizontal state during traveling of the vehicle, the vehicle travels a predetermined distance per unit amount. A third computing means 33-5 for sequentially subtracting the predetermined value to calculate an instruction value of the remaining fuel amount,
The drive control means displays the remaining fuel amount on the display means based on the instruction value calculated by the third calculation means when the inclination detection means detects a non-horizontal state during running of the vehicle. The present invention is also directed to a fuel remaining amount display device for a vehicle.

With the above arrangement, the drive control means 33-2 for controlling the display means 7 to display the fuel remaining amount on the display means allows the inclination detecting means to detect the non-horizontal state while the vehicle is running. Is displayed on the display means 7 based on the instruction value calculated by the third calculation means 33-5.

Therefore, when the inclination detecting means 5 detects the non-horizontal state during the running of the vehicle, it is determined that there is fuel consumption corresponding to the distance traveled during the unit time and the current instruction value is determined at predetermined time intervals. Is displayed on the display means 7 based on the instruction value of the remaining fuel amount which is obtained by sequentially subtracting a predetermined value from the predetermined value, and the remaining fuel amount is determined based on the instruction value calculated by the first calculating means 33-1. There is no display on the display means 7. Therefore, even if the liquid level of the fuel in the combustion tank of the vehicle changes while traveling on the slope, it is not detected and the display based on the fuel signal generated by the fuel sensor 1 is not performed. The decrease in the remaining amount of fuel consumed by traveling is reflected in the indicated value with a certain degree of accuracy.

Claim 1 has been made to solve the above problems.
According to a fifth aspect of the present invention, as shown in the basic configuration diagram of FIG. 1, in the fuel level display device for a vehicle according to the fourteenth aspect, the drive control means sets the inclination detection means to a horizontal state while the vehicle is running. When the detection is being performed, the indicator value calculated by the first calculation means is set as a target value and the remaining fuel amount is displayed based on a value that is increased or decreased by a constant value at every second fixed time toward the target value. Display on the means.

Characterized by the following:

According to the above construction, in addition to the operation of the invention described in claim 14, when the inclination detecting means 5 detects a horizontal state during running of the vehicle, the indicated value calculated by the first calculating means 33-1. Is set as the target value and the second
Since the remaining fuel amount is displayed on the display means 7 based on the value increased or decreased by a constant value at regular time intervals,
The indicated value calculated by the calculating means 33-1 based on the liquid level which changes every moment on a flat ground is displayed. And the second
Is set longer, the responsiveness of the display performed using the indicated value calculated by the first calculating means 33-1 as a target value when there is no refueling is slowed down, and when the vehicle is traveling on level ground, the level of the liquid level is reduced. Fluctuates, the indication value is less affected by the fluctuation.

Claim 1 has been made to solve the above problems.
As shown in the basic configuration diagram of FIG. 1, the invention described in FIG. 6 includes a display means 7 for displaying an indicated value and a fuel sensor 1 for detecting a liquid level of fuel in a combustion tank of a vehicle and generating a fuel signal. Calculating means 33-1 for inputting a fuel signal from the fuel sensor and calculating an indicated value for indicating a remaining fuel amount
A drive control unit 33-2 for controlling the display unit to display the remaining fuel amount by driving the display unit; and temporarily storing the latest target value every time the vehicle stops for a certain period of time. Temporary storage means 344, fuel supply detection means 33-3 for detecting the presence or absence of fuel supply, and inclination detection means 5 for detecting a non-horizontal state in which the vehicle is inclined by a predetermined angle or more and a horizontal state other than this. The drive control means stores the information in the temporary storage means when the inclination detection means detects a non-horizontal state, when the replenishment detection means detects replenishment, during a period from the time the ignition switch is turned on to the start of traveling. The difference between the indicated value and the indicated value calculated by the calculating means is calculated, and the difference is added to the indicated value stored in the temporary storage means. Every certain period of time Lies in the fuel quantity display device for a vehicle, characterized in that to be displayed on said display means the remaining fuel quantity based on the value increased by one predetermined value.

With the above structure, the drive control means 33-2 for controlling the display means 7 to display the fuel remaining amount on the display means is provided. The horizontal state is detected and the refueling detection means 33
-3 detects that there is refueling, the temporary storage means 3
The difference between the indicated value stored in the storage unit 44 and the indicated value calculated by the calculating unit 33-1 is calculated, and the difference is added to the indicated value stored in the temporary storage unit. Is displayed on the display means 7 on the basis of the value incremented by a constant value at every first constant time.

Therefore, even if refueling is performed on the sloped area between the time the engine is turned on and the start of traveling, the indicated value of the fuel remaining amount that cancels out the change in the liquid level of the fuel in the combustion tank of the vehicle that occurred on the sloped area is calculated. Display. In addition, by setting the first fixed time to be shorter, the response of this display becomes faster than the display performed using the indicated value calculated as a target value when there is no refueling, and the increase in the liquid level due to the refueling can be reduced. The indicated value immediately reflected is displayed.

Claim 1 has been made to solve the above problems.
As shown in the basic configuration diagram of FIG. 1, the invention described in FIG. 7 includes a display means 7 for displaying an indicated value and a fuel sensor 1 for detecting a liquid level of fuel in a combustion tank of a vehicle and generating a fuel signal. Calculating means 33-1 for inputting a fuel signal from the fuel sensor and calculating an indicated value for indicating a remaining fuel amount
A drive control unit 33-2 for controlling the display unit to display the remaining fuel amount by driving the display unit; and temporarily storing the latest target value every time the vehicle stops for a certain period of time. Temporary storage means 344, and inclination detection means 5 for detecting a non-horizontal state in which the vehicle is inclined by a predetermined angle or more and a horizontal state other than the predetermined angle, and the drive control means is provided between the time when the engine is turned on and the time when traveling starts. When the inclination detecting means is detecting a horizontal state, and when the replenishment detecting means detects the presence of replenishment, an instruction value calculated by the calculating means is set as a target value toward the target value every first fixed time. When the inclination detecting means detects the non-horizontal state based on the value incremented by a constant value, when the replenishment detecting means detects the presence of replenishment, the indicated value stored in the temporary storage means and Calculation means Taking the difference between the more the calculated instruction value,
The target value is obtained by adding the difference to the command value stored in the temporary storage means as a target value, and the remaining fuel amount is set based on a value that is increased by a constant value at every first fixed time toward the target value. The present invention resides in a vehicle fuel level display device characterized by displaying on a display means.

With the above configuration, the drive control means 33-2 for controlling the display means 7 to display the fuel remaining amount on the display means is provided. The state is detected, and the supply detecting means 33-
3 detects that there is replenishment, the calculating means 33-1
Is displayed on the display means 7 on the basis of a value which is incremented by a constant value at every first constant time toward the target value, and the inclination detecting means 5 is set in the non-horizontal state. When the refueling detection means 33-3 detects the presence of refueling, the difference between the indicated value stored in the temporary storage means 344 and the indicated value calculated by the calculating means 33-1 is calculated. The indication is made by adding the difference to the indication value stored in the temporary storage means 344 as a target value, and the remaining fuel amount is displayed based on a value that is increased by a constant value at every first fixed time toward the target value. Display on the means.

Therefore, between the time when the engine is turned on and the time when the vehicle starts running, even if the fuel is supplied on the slope, even if the fuel level in the combustion tank of the vehicle is changed on the slope, the change in the fuel level is canceled out. Display the value. Moreover, in both the flat ground and the sloping terrain, by setting the first fixed time to be shorter, the response of this display becomes faster than the display performed using the indicated value calculated when there is no refueling as the target value, An indication value that immediately reflects an increase in the liquid level due to refueling is displayed.

Claim 1 has been made to solve the above problems.
According to an eighth aspect of the present invention, as shown in the basic configuration diagram of FIG. 1, in the vehicle fuel remaining amount display device according to the sixteenth or seventeenth aspect, the replenishment detection means is provided between the time when an ignition switch is turned on and the time when traveling starts. A stationary detection means for detecting a difference between an instruction value stored in the temporary storage means and an instruction value calculated by the arithmetic means, and detecting the presence of refueling when the difference is equal to or greater than a predetermined value. 33-32.

With the above construction, in addition to the operation of the invention according to claim 16 or 17, in addition to the replenishment of fuel from the time when the ignition switch is turned on until the start of running of the engine, that is, the presence or absence of refueling is detected by the stop detecting means 33-32. Detects the refueling when the difference between the indicated value stored in the temporary storage means 344 and the indicated value calculated by the calculating means 33-1 is equal to or greater than a predetermined value. Even if fuel is supplied before the engine starts running, the change in the fuel level in the combustion tank of the vehicle caused by stopping on the slope will be canceled out, and simply by the change in the liquid level The presence / absence of refueling can be detected with higher accuracy than in the case of judgment.

Claim 1 has been made to solve the above problem.
As shown in the basic configuration diagram of FIG. 1, the invention described in 9 is a display means 7 for displaying an indicated value, and a fuel sensor for detecting the liquid level of fuel in a combustion tank of a vehicle and generating an analog fuel signal. 1 and a calculating means 3 for calculating an indicated value for indicating a remaining fuel amount based on a digital fuel signal inputted by converting an analog fuel signal from the fuel sensor into a digital signal.
3-1; drive control means 33-2 for controlling the display means to display the remaining fuel amount on the display means; and when the ignition switch is turned off, the drive control means sets the display means to the display means. A storage means 8 for storing the indicated value of the remaining fuel amount in place of the previous storage value and storing the stored value even while the ignition switch is off; Detecting means 33-
3, and a tilt detecting means 5 for detecting a non-horizontal state in which the vehicle is tilted by a predetermined angle or more and a horizontal state other than the predetermined angle.
When the inclination detecting means detects the non-horizontal state, and when the replenishment detecting means detects replenishment, the difference between the instruction value stored in the storage means and the instruction value calculated by the calculating means is calculated. And displaying the remaining fuel amount on the display means based on the target value by using the indicated value obtained by adding the difference to the indicated value stored in the storage means as a target value, from the time when the ignition switch is turned on until the start of traveling. When the inclination detecting means is detecting a non-horizontal state, when the replenishment detecting means detects replenishment, the difference between preceding and succeeding indicated values calculated by the calculating means is calculated, and the difference is calculated as the previous indicated value. A fuel remaining amount display device for displaying the remaining fuel amount on the display means based on a value that is incremented by a constant value at regular intervals toward the target value with the indicated value added to the target value as a target value. Exist in .

With the above configuration, the drive control means 33-2 for controlling the display means 7 to display the fuel remaining amount on the display means, and immediately after the ignition switch is turned on, the inclination detecting means 5 detects the non-horizontal state. And supply detecting means 33-
3 detects the presence of replenishment, takes the difference between the instruction value stored in the storage means 8 and the instruction value calculated by the calculation means 33-1 and stores the difference in the storage means 8. The indication value added to the indication value is set as a target value, and the remaining fuel amount is displayed on the display means 7 based on the target value.

In the drive control means 33-2, the inclination detecting means 5 detects a non-horizontal state during the period from turning on of the ignition switch to the start of traveling, and the replenishment detecting means 33-3 detects the presence of replenishment. The difference between the preceding and following indicated values calculated by the calculating means 33-1 is sometimes taken, and the indicated value obtained by adding the difference to the previous indicated value is set as the target value, and is fixed toward the target value at every first fixed time. The fuel remaining amount is displayed on the display means 7 based on the incremented value.

Therefore, even if fuel is supplied on the slope when the ignition switch is turned off, or between the time when the ignition switch is turned on and the start of travel, the fuel in the combustion tank of the vehicle generated when the vehicle is stopped on the slope is stopped. The indication value of the remaining fuel amount that has canceled the change in the liquid level is displayed. In addition, by setting the first fixed time shorter, the display value at the time of refueling is promptly displayed on the display means 7.

Claim 2 has been made to solve the above problem.
As shown in the basic configuration diagram of FIG. 1, the invention described in claim 0 is the vehicle fuel remaining amount display device according to claim 19, wherein the inclination detecting means is in a non-horizontal state from the time the engine is turned on until the start of traveling. The second calculating means 33-4 calculates the indicated value of the remaining fuel amount by sequentially subtracting the specified value from the current indicated value at predetermined time intervals on the assumption that there is a predetermined fuel consumption per unit time. While the vehicle is traveling, when the inclination detecting means detects the non-horizontal state, the vehicle travels a predetermined distance per unit amount, and a predetermined value corresponding to the traveling distance is sequentially subtracted from a current instruction value at a predetermined time interval. And a third calculating means 33-5 for calculating the indicated value of the remaining fuel amount, and wherein the drive control means detects that the inclination detecting means detects a non-horizontal state during a period from turning on of the engine to starting of traveling. The replenishment detection means When the replenishment is detected, the remaining fuel amount is displayed on the display unit based on the instruction value calculated by the second calculation unit, and when the tilt detection unit detects a non-horizontal state during running of the vehicle. When the replenishment is detected by the replenishment detection means, the remaining fuel amount is displayed on the display means based on the instruction value calculated by the third calculation means.

With the above structure, in addition to the function of the present invention, the drive control means 33-2 for controlling the display means 7 to display the remaining fuel amount on the display means allows the drive means 33-2 to run from the time the engine is turned on. Until the start, when the inclination detecting means 5 detects the non-horizontal state and the replenishment detecting means 33-3 detects that there is no replenishment, it is determined that there is a predetermined fuel consumption per unit time, and the current instruction is performed at predetermined time intervals. The display unit 7 displays an indication of the remaining fuel amount based on the instruction value of the remaining fuel amount obtained by sequentially subtracting a predetermined value from the value, and displays the remaining fuel amount based on the instruction value calculated by the calculation unit 33-1. 7 is not displayed.

When the drive control means 33-2 detects the non-horizontal state while the vehicle is running, it is determined that there is fuel consumption corresponding to the distance traveled during the unit time every unit time. The display unit 7 displays the remaining fuel amount based on the instruction value of the remaining fuel amount obtained by sequentially subtracting the predetermined value from the current instruction value at predetermined time intervals, based on the instruction value calculated by the first calculation unit 33-1. The remaining fuel amount is not displayed on the display means 7.

Therefore, even if the vehicle is stopped on a slope and the level of fuel in the combustion tank of the vehicle changes, no indication based on the fuel signal generated by the fuel sensor 1 is detected by detecting this. Moreover, the decrease in the fuel remaining amount consumed by turning on the engine is reflected in the indicated value with a certain degree of accuracy.

Further, even if the liquid level of the fuel in the combustion tank of the vehicle changes while traveling on the slope, the display based on the fuel signal generated by the fuel sensor 1 by detecting this change is not performed. In addition, the decrease in the fuel remaining amount consumed by the running of the vehicle is reflected in the indicated value with a certain degree of accuracy.

Claim 2 has been made to solve the above problem.
As shown in the basic configuration diagram of FIG. 1, the invention described in FIG. 1 includes a display means 7 for displaying an indicated value and a fuel sensor 1 for detecting a liquid level of fuel in a combustion tank of a vehicle and generating a fuel signal. And a first calculating means 33 for inputting a fuel signal from the fuel sensor and calculating an indicated value for indicating a remaining fuel amount.
-1, a drive control means for controlling the display means to display the remaining fuel amount by driving the display means, and an inclination for detecting a non-horizontal state in which the vehicle is inclined by a predetermined angle or more and a horizontal state other than this. When the inclination detecting means detects a non-horizontal state from the time when the engine is turned on to the time when the vehicle starts traveling, it is determined that there is a predetermined fuel consumption per unit time, and a predetermined fuel consumption is determined from a current instruction value every predetermined time. A second calculating means 33-4 for sequentially subtracting the values to calculate an indicated value of the remaining fuel amount; and a predetermined distance per unit amount when the inclination detecting means detects a non-horizontal state during running of the vehicle. When the vehicle travels, a third calculating means 33 for sequentially subtracting a predetermined value corresponding to the travel distance from a current instruction value at predetermined time intervals to calculate an instruction value of the remaining fuel amount.
-5, wherein the drive control means uses the indicated value calculated by the first calculation means as a target value when the inclination detection means detects a horizontal state after the ignition switch is turned on. The fuel remaining amount is displayed on the display means based on a value decremented by a constant value every second constant time, and the inclination detecting means detects the non-horizontal state from the time the engine is turned on until the start of traveling. The fuel value is determined based on a value obtained by decrementing the target value by a constant value at regular intervals equal to the second constant time toward the target value using the indicated value computed by the second computing means as a target value. Is displayed on the display means, and while the vehicle is traveling, when the inclination detecting means detects a non-horizontal state, the instruction value calculated by the third calculating means is set as a target value toward the target value. The second fixed time Flip lies in the fuel quantity display device for a vehicle, characterized in that to display the fuel quantity on the display means based on the value obtained by subtracting one by a fixed value at fixed time intervals.

With the above structure, the drive control means 33-2 for controlling the display means 7 to display the fuel remaining amount on the display means, and after the ignition switch is turned on, the inclination detecting means 5 detects the horizontal state. In this case, the indication value calculated by the first calculation means 33-1 is set as a target value, and the remaining fuel amount is displayed based on a value reduced by a certain value at every second certain time toward the target value. Therefore, the indicated value calculated by the calculating means 33-1 is displayed based on the liquid level which changes every moment on the flat ground after the engine is turned on.

When the drive control means 33-2 detects the non-horizontal state during the period from the turning on of the engine to the start of running, the instruction calculated by the second calculation means 33-4. The remaining fuel amount is displayed on the display means 7 based on the value, and the remaining fuel amount is not displayed on the display means 7 based on the instruction value calculated by the calculating means 33-1. Even if the liquid level of the fuel in the combustion tank changes, this is not detected and the display based on the fuel signal generated by the fuel sensor 1 is not performed.
Moreover, the decrease in the remaining fuel amount consumed by turning on the engine is reflected in the indicated value with a certain degree of accuracy.

Further, when the drive control means 33-2 detects the non-horizontal state while the vehicle is traveling, the fuel control is performed based on the command value calculated by the third calculation means 33-5. The remaining amount is displayed on the display means, and the remaining fuel amount is not displayed on the display means 7 based on the instruction value calculated by the first calculating means 33-1. Even if the liquid level of the fuel changes, the fuel level is detected and no indication based on the fuel signal generated by the fuel sensor 1 is performed, and the remaining fuel amount consumed by the running of the vehicle is reduced. Is reflected in the indicated value with a certain degree of accuracy.

In addition, by setting the second fixed time to be longer, the indicated value is displayed with a smooth change unless refueling is performed on a flat ground.

[0063]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a circuit diagram showing one embodiment of the fuel level display device for a vehicle according to the present invention. In FIG. 1, a sensor 1 that detects a liquid level of fuel in a combustion tank of a vehicle and generates an analog fuel signal constitutes a fuel sensor. Sensor 1 has a contact point 1b sliding on the resistor 1a in accordance with the position of the unillustrated float floating on the fuel level, the V _CC supply end of the resistor 1a through the resistor 2, the other end Are connected to the ground. The contact 1b slides on the resistor 1a in accordance with the level of the fuel in the combustion tank of the vehicle, and outputs a voltage obtained by dividing the voltage applied to both ends of the resistor 1a as an analog fuel signal. It is applied to the input port I ₁ of the microcomputer (μCOM) 3 via the signal line L1 to.

The μCOM 3 converts an analog fuel signal input to the input port I ₁ into a digital signal to obtain a digital fuel signal.
And a read-only memory (ROM) 32 storing programs and fixed data, and a central processing unit (CP) for executing processing in accordance with the programs stored in the ROM 32.
U) 33 and a read / write memory (RAM) 34 having a data area for storing various data generated in the course of the processing of the CPU 33 and a work area used for the processing. The μCOM 3 has a power port V _CC , a ground port GND, input ports I _{2 to} I ₄ , output ports O ₁ and O _2, and an input / output port IO in addition to the input port I ₁ .

A connection point between one end of the resistor 1a and the resistor 2 is connected to the power supply port V _{CC of} μCOM3 via the power supply line L2, and the operating power supply voltage V _CC is supplied. μC
The other end of the grounded resistor 1a is connected to the ground port GND of the OM3 via a ground line L3. A speed pulse having a cycle corresponding to the vehicle speed generated by a vehicle speed sensor (not shown) connected to the input terminal 41 according to the traveling of the vehicle is input to the input port I _{2 of the} μCOM 3. The input port I _3, tachometer pulses of a period rotation sensor (not shown) connected to the input terminal 42 according to the engine rotational speed which occurs in response to ON of the engine is input. The input port I _4, provided in a vehicle, when the vehicle is tilted a predetermined angle or more, depending on which was turned on and off when there is no more than a predetermined value of the slope, it a non-horizontal state of the vehicle is inclined more than a predetermined angle An inclination sensor switch 5 is connected as inclination detecting means for detecting a horizontal state other than the above.

A cross coil driver 6 is connected to the output port O _{1 of the} μCOM 3. μCOM3 CPU
Reference numeral 33 outputs a deflection angle value to the cross coil driver 6. The cross coil driver 6 supplies a pulse-like drive current according to the wobble angle to the cross coil 7 including a pair of coils 71 and 72 that are wound crossing each other and that is included in the cross coil type instrument. The cross-coil meter functions as a display unit as a fuel gauge for indicating the swing angle value to the pointer and displaying the indicated value.

More specifically, a pulse-like driving current whose duty ratio and current direction change sinusoidally according to the pointer swing angle value is applied to one coil 71 of the cross coil 7, while the cosine is applied to the other coil 72. The pulse-shaped drive currents which change in a continuous manner are respectively supplied, and both coils 71 and 72 generate magnetic fields orthogonal to each other. As a result, the cross coil 7 has a combined magnetic field direction of 36 degrees according to the pointer swing angle value.
A combined magnetic field that rotates 0 degrees is generated. The cross coil 7 formed by crossing and winding a pair of coils 71 and 72 has a space formed therein. In this space, N
A rotor magnet (not shown) in which the S pole is radially magnetized is rotatably disposed, and its NS pole is rotated so as to match the direction of the composite magnetic field. By rotating the pointer according to the rotation of this rotor magnet,
The remaining fuel amount can be displayed by the indicated value of the pointer.

A non-volatile memory (NVM) 8 is connected to the input / output port IO of the μCOM 3 as storage means capable of holding data without a backup power supply.
CPU 33 reads various types of constant data rewritably stored in a predetermined area of the NVM 8,
The data generated in the course of the processing is written in a predetermined area and read out as necessary. Incidentally, 9 is the remaining amount c awning indicator warning by lighting that the fuel remaining amount is low below a predetermined amount, and is connected to the output port O _2.

In the above configuration, the CPU of μCOM3
33 reads the states of the power supply port V _CC and the input ports I _{1 to} I ₄ according to the program stored in the ROM 32 and performs predetermined processing, and outputs data to the output ports O ₁ and O _{2 according} to the result of the processing. At the same time, data is read and written via the input / output port IO.

Specifically, the CPU 33 of the μCOM 3
Power port V_CCV applied to _CCMonitor and stand
Ignition (IGN) switch by rising
Turns on, and turns off by falling.
Judge each. The CPU 33 of the μCOM 3
I₁The analog fuel signal input to the
For example, the A / D converter 3 has a sampling period of 100 ms.
A / D converted to 1 to obtain a digital fuel signal,
ms × 16 = every 1.6 seconds, this digital fuel signal
6 samples are collected and averaged, and this value is used as an indicator.
Is calculated. The calculated swing angle value of the pointer
Eight pieces were collected, and the collected eight swing angle values were weighted averaged.
To calculate the target value of the deflection angle of the pointer. That is, μC
The CPU 33 of the OM 3 reads the analog fuel from the fuel sensor 1.
Calculate the digital fuel level indication by inputting the fuel signal
It works as the calculating means 33-1. This target value
The weighted average value is obtained by the following weighted average formula.

Σold (i) = Σold (i−1) −Σold (i−1) / N + NEW Deflection angle = Σold (i) / N (N = 8) It is a deflection angle value of a final position to be driven and moved sequentially by a constant angle every second constant time which is relatively long.

The CPU 33 of the μCOM 3 has an input port I
The cycle of the speed pulse input to ₂ is measured, and if there is no input of the speed pulse even after a predetermined time has elapsed, it is determined that the vehicle speed is 0, that is, the vehicle is stopped. μC
The CPU 33 of the OM ₃ determines that the engine is on based on the presence of the tacho pulse input to the input port I ₃ . Further, the CPU 33 of the μCOM 3 determines that the vehicle is tilted by a predetermined angle or more and is in a non-horizontal state when the tilt sensor switch 5 as the tilt detecting means connected to the input port I ₄ is on, When the vehicle is off, it is determined that the vehicle is not inclined at a predetermined angle or more and is in a horizontal state.

Based on the result of the above input processing, μC
The CPU 33 of the OM 3 performs the following arithmetic processing, output processing, and input / output processing.

The CPU 33 of the μCOM 3 is connected to the power port V _CC
Is constantly monitored, and when the IGN switch is turned off and the power supply port V _CC is in the L level state, the apparatus enters the power saving mode standby state. When the IGN switch is turned on during this standby state and the input port V _CC goes to the H level state, it is determined that the IGN switch has been turned on, and the following initial output processing is performed.

In this initial output process, first, a digital fuel signal is obtained at a Bms (millisecond) cycle of, for example, 100 ms, and stored in the sampling data storage area 341 (FIG. 3) in the RAM 34. When the signal is obtained, the deflection angle value is obtained by the simple average value. The value of the constant B is stored in the constant storage area 81 (FIG. 4) in the NVM 8. Next, it is determined by the state of the tilt sensor switch 5 connected to the input port I _4, the vehicle is non-horizontal state, which one of the horizontal state.

In the horizontal state, the deflection angle value obtained by the above simple average value is stored in the first target value storage area 342 (FIG. 3) in the RAM 34 and is stored in the current deflection angle value storage area 343 (FIG. 3). It is stored and output to the cross coil driver 5, and the deflection angle value is displayed on the pointer of the instrument. That is, the CPU 33 of the μCOM 3 functions as a drive control unit 33-2 that controls a cross-coil meter as a display unit and displays the remaining fuel amount on the meter.

In the non-horizontal state, first, the last IGN
When the switch is turned off, it is determined whether or not there is target value data stored in a target value storage area 340 (FIG. 3) in the RAM 34. The difference from the target value stored in the area 340 is obtained, and it is determined whether or not the difference is equal to or larger than a predetermined value A. The value of the constant A is stored in the constant storage area 81 in the NVM 8. This judgment is
This is for judging whether or not there is refueling between the time when the IGN switch was turned off last time and the time when the IGN switch is turned on this time, and the fuel remaining amount has changed greatly.
That is, the CPU 33 of the μCOM 3 functions as the replenishment detecting means 33-3 for detecting the presence or absence of fuel replenishment, in particular, the detection means 33-31 immediately after the ignition is turned on.

When the difference is equal to or larger than A, that is, when refueling is performed, a value obtained by adding the difference to the target value stored in the target value storage area 340 in the RAM 34 is set as a new target value in the RAM 34. It is stored in the first target value storage area 342 and the current swing angle value storage area 342 and output to the cross coil driver 5. If the difference is less than A, that is, if there is no refueling, the swing angle value stored in the target value storage area 340 in the RAM 34 is displayed in order to display the position of the pointer immediately before the last IGN switch-off. In the first target value storage area 342 in the RAM 34 and the current swing angle value storage area 3
43 and output to the cross coil driver 5.

When there is no data when the IGN switch was turned off last time, the swing angle value obtained by the above simple average value is stored in the first target value storage area 3 in the RAM 34.
42 and the current swing angle value storage area 343
And outputs it to the cross coil driver 5.

In any of the above cases, it is determined whether the pointer position based on the swing angle value stored in the current swing angle value storage area 343 in the RAM 34 is equal to or smaller than a constant D, and the pointer position is equal to or smaller than D. In this case, the remaining amount warning indicator 9 is turned on. The value of the constant D is stored in a constant storage area 81 in the NVM 8. Thus, the output processing of the initial value is completed.
When the GN switch is turned off, the process returns to the standby state during the process.

When the initial value output processing is completed as described above, the following processing is performed until the IGN switch is turned off or the engine is turned on. In the following processing, the following processing is performed until the vehicle runs. The following processing is always performed.

That is, the CPU 33 of the μCOM 3 measures the cycle of the speed pulse input to the input port I ₂ , determines that there is no input of the speed pulse even after a predetermined time has elapsed, and determines that the vehicle speed is 0 km / h. In the case of continuing for P seconds, the swing angle value of the target value stored in the first target value storage area 342 in the RAM 34 at that time is stored in the second target value storage area 344 (see FIG. 3), and then the second target value storage area 34
If the difference between the target value stored in Step No. 4 and the swing angle value of the target value obtained for each fixed time Q is continuously equal to or greater than the R-times constant A set in the NVM, the high-speed response mode is entered and the constant A If it is smaller, it enters normal mode. The high-speed response mode is provided in consideration of processing at the time of refueling. That is, μCO
The M3 CPU 33 functions as replenishment detecting means 33-3 for detecting the presence or absence of fuel replenishment, particularly, when the vehicle is stopped.

The above-mentioned target value is obtained at the sampling period, and is stored in the sampling data storage area 34 in the RAM 34.
When the number of digital fuel signals stored in 1 becomes 16, these are averaged and obtained at regular time intervals Q. Therefore, the value of the constant Q is a time corresponding to, for example, 100 ms (sampling cycle) × 16 times (average number), and is stored in the constant storage area 81 in the NVM 8.

When the vehicle is in the horizontal state, in the case of the normal mode, the swing angle value obtained by averaging the 16 digital fuel signals at regular time intervals Q as described above is set as the target value, and this target value is set as the target value. 1 is stored in the target value storage area 342, and the target value is weighted and averaged, and the deflection angle data stored in the current deflection angle value storage area 343 in the RAM 34 toward the target value is stored every N seconds. Is changed by one bit at a time, and the angle corresponding to one bit is changed every N seconds which is the second fixed time from the current shake angle value. On the other hand, in the case of the high-speed response mode, a swing is performed by one bit at every Mms, which is a first fixed time relatively shorter than the first fixed time, toward the weighted swing angle value as described above. The constants N and M are stored in a constant storage area 81 in the NVM 8.

When the vehicle is in the non-horizontal state, in the normal mode, in the initial value output process, the swing angle value stored in the current swing angle value storage area 343 in the RAM 34 is continuously output to the cross coil driver 5 and the pointer is maintained. Does not move. On the other hand, in the case of the high-speed response mode, the RAM 3
4, the swing angle value of the target value stored in the target value storage area 340 in the target value storage area 340 and the swing angle value obtained this time as described above and the RAM
The value obtained by adding the difference from the swing angle value stored in the second target value storage area 344 in the memory 34 is stored in the first target value storage area 342 in the RAM 34 as a new target value swing angle value. The deflection angle data stored in the current deflection angle value storage area 343 in the RAM 34 is changed by one bit for each Mms toward the target value, and the current deflection angle value is changed to one bit for each Mms from the current deflection angle value. Move the pointer by the corresponding angle.

In any of the above cases, the determination is made based on the swing angle value stored in the current swing angle storage area 343 in the RAM 34. If the difference is equal to or smaller than the constant D, the remaining amount warning indicator 9 is turned on. Whether the position of the pointer is larger than D for 40 seconds or more is determined by the current swing angle value storage area 343 in the RAM 34.
And the remaining amount warning indicator 9 is turned off. Note that this 40-second timer is a cumulative timer, and is not cleared even if the state of the vehicle changes between a horizontal state and a non-horizontal state, but is cleared when the pointer position moves across a constant D, and is continuously cleared. Then 40
During the second, the remaining amount warning indicator 9, which is lit only when it is in the same state, is turned off.

When the IGN switch is turned off in the course of the above-described processing, the processing returns to the standby state in the middle of the processing, and when the engine is turned on, the idling display processing is performed. When the engine is turned on and off while the vehicle is running, the process directly proceeds to the running display process without going through the idling display process.

In the idling display process, when the vehicle is in the horizontal state, in the normal mode, the weighted average swing angle value is set as the target value in the same manner as described above.
The pointer is moved one bit at a time every N seconds toward the target value. Also in the case of the high-speed response mode, in the same manner as described above, a swing is performed one bit at a time every Mms toward the swing angle value of the weighted average target value.

When the vehicle is in the non-horizontal state, in the normal mode, for example, assuming that 2 liters (l) of fuel is consumed per hour, a subtraction process is performed from the current swing angle at a rate of 2 liters (l) / h. I do. That is, the CPU 33 of the μCOM 3 performs the operation from the time when the engine is turned on to the time when the vehicle starts running.
A second calculating means for calculating an indicated value of a remaining fuel amount by sequentially subtracting a specified value from a current indicated value at predetermined time intervals, assuming that predetermined fuel consumption per unit time is detected when a non-horizontal state is detected; Working as 33-4. In this subtraction process, a shake angle corresponding to 2 liters / h is subtracted from the current shake angle value, and this value is weighted to obtain a target value. The pointer is stored in the value storage area 345 (FIG. 3), and the pointer is moved one bit at a time every N seconds toward the target value.

In the case of the high-speed response mode, the swing angle value of the target value stored in the target value storage area 340 and the swing angle value obtained this time and the second target value storage area 344 are stored in the same manner as described above. The value obtained by adding the difference from the stored swing angle value is stored in the first target value storage area 342 as the swing angle value of the new target value, and is stored in the current swing angle value storage area 343 toward this target value. Mms
Change one bit at a time for each
The pointer is swung by an angle corresponding to one bit every time.

In any of the above cases, it is determined whether the value is equal to or smaller than the constant D or the position of the pointer is larger than D for 40 seconds or more. In the latter case, the light is turned off. When the IGN switch is turned off during the idling display process, the process returns to the standby state in the middle of the process, and when the vehicle speed exceeds 0 km / h, the process proceeds to the traveling display process.

In the traveling display processing, when the vehicle is in the horizontal state, the vehicle is swung by one bit every N seconds toward the swing angle value of the target value weighted and averaged as described above. Assuming that 1 liter (l) of fuel is consumed per 6 km when the vehicle is in a non-horizontal state, the fuel consumption is subtracted at a rate of 6 km / liter (l) every time corresponding to the sampling period. That is, the CP of μCOM3
U33 determines that the vehicle travels a predetermined distance per unit amount when a non-horizontal state is detected while the vehicle is running, and sequentially subtracts a predetermined value corresponding to the traveling distance from a current instruction value at predetermined time intervals to determine a remaining fuel amount. Third calculating means 33-5 for calculating the indicated value of the amount
Working as. In this subtraction processing, a value obtained by subtracting a value obtained by subtracting from the current shake angle value is obtained as a weighted average, and the target value is obtained.
46 (FIG. 3), and the pointer is moved one bit at a time every Mms toward this target value.

In any of the above cases, it is determined whether the value is equal to or less than the constant D or the position of the pointer is greater than D for 40 seconds or more. In the former case, the remaining amount warning indicator 9 is turned on. In the latter case, the light is turned off. When the IGN switch is turned off in the course of the traveling display process, the process returns to the standby state during the process, and returns to the idling display process when the vehicle speed becomes 0 km / h.
When the engine is turned off, the process returns to the process immediately after the initial value output process.

The details of the operation outlined above are described in μCOM3
This will be described in detail below with reference to flowcharts of FIGS.

As shown in FIG. 5, the CPU 33 of the μCOM 3 starts operating when the power is turned on, and is in a standby state in which the IGN switch is turned on in step S1 until the IGN switch is turned on. When the IGN switch is turned on and the determination in step S1 is YES, the process proceeds to step S2 and waits for the elapse of the sampling time Bms. When the sampling time has elapsed and the determination in step S2 is YES, the process proceeds to step S3, where the input port I
A / D conversion is performed on _one analog fuel signal to obtain digital fuel data, which is stored in a sampling data storage area 341 formed in the RAM 34. Thereafter, the process proceeds to step S4, where it is determined whether or not digital fuel data is stored in the four data areas.
Steps S2 to S4 are repeated until the above is reached.

When the determination in step S4 is YES, the process proceeds to step S5, where the simple average value of the fuel data read in step S3 and stored in the four fuel data areas of the RAM 34 is obtained, and then the process proceeds to step S6. In step S6, a swing angle value is calculated based on the simple average value obtained in step S5, and the swing angle value is stored in the first target value storage area 342 in the RAM 34 as a target value. By the processing of steps S2 to S6, the CPU 33 functions as the calculating means 33-1 for inputting the fuel signal from the fuel sensor 1 and calculating the indicated value of the remaining fuel amount immediately after the ignition switch is turned on.

[0097] step S7 subsequent to calculating and storing in step S6, where reading the state of the input port slope is connected to I ₄ sensor switch 5, the vehicle according to the state of the read gradient sensor switch 5 It is determined whether it is in a horizontal state. The determination in step S7 is Y
In the case of ES, the process proceeds to step S8 and proceeds to step S6.
, The swing angle value in the first target value storage area 342 is stored in the current swing angle value storage area 343, and this is output to the cross coil driver 6, and then the process proceeds to step S9. By the processing in step S8, the CP
U33 functions as drive control means 33-2 for controlling a cross-coil type instrument as a display means to display the fuel remaining amount on the instrument, and when detecting a horizontal state immediately after the ignition switch is turned on, The remaining fuel amount is displayed based on the calculated instruction value.

In step S9, it is determined whether or not the position of the pointer, that is, the deflection angle value stored in the current deflection angle storage area 343 in the RAM 34 is greater than or equal to the constant D. If this determination is NO, the process proceeds to step S9. Proceeding to S10, the remaining amount warning indicator 9 is turned on. When the determination in step S9 is YES, that is, when the position of the pointer is larger than the constant D, the process proceeds to step S11 to turn off the remaining amount warning indicator 9, and ends the initial value output processing to shift to the next processing.

If the determination in step S7 is NO, that is, if the vehicle is in a non-horizontal state, step S7 is executed.
In step S12, it is determined whether or not there is a target value stored in the target value storage area 340 of the RAM 34 in which the target value is stored when the IGN switch was turned off last time. The process proceeds to S8, and if the determination is YES, the process proceeds to step S13. Therefore, when the instruction value is not stored in the RAM 34, the remaining fuel amount is displayed based on the calculated instruction value. Therefore, when the vehicle is on a slope and the ignition switch is turned on, the instruction value of the remaining fuel amount is displayed in the RAM 34. Even if it is not stored, nothing is displayed.

In step S13, the difference between the swing angle value calculated in step S6 above and the target value stored in the target value storage area 340 in the RAM 34 is calculated, and in step S14, the difference is calculated. It is determined whether the difference is equal to or greater than the constant A. By the process in step S14, immediately after the ignition switch is turned on, the CPU 33 calculates the difference between the command value stored in the RAM 34 and the calculated command value. It functions as the ignition-on detection means 33-31 for detecting the presence of replenishment. Therefore,
Even if the fuel is refueled on a slope before the ignition switch is turned on, the change in the fuel level in the fuel tank of the vehicle caused by stopping on the slope will be canceled out, and the change in the liquid level will simply be Compared to judging,
The presence or absence of lubrication can be detected with high accuracy.

When the determination in step S14 is YES, that is, when the difference between the swing angle value when the IGN switch is turned off and the shake angle value obtained this time becomes larger than the constant A due to refueling, the process proceeds to step S15 to proceed to the RAM 34. A value obtained by adding the difference between the deflection angle value obtained this time and the target value stored in the target value storage area 340 to the deflection angle value stored in the target value storage area 340 in the area is set as a new target value.
The information is stored in the first target value storage area 342 in M34 and in the current deflection angle value storage area 343, which is output to the cross coil driver 6, and then proceeds to step S9. Therefore, even if the fuel is refueled when the ignition switch is turned off when the vehicle is on a slope, the indication value of the increase due to refueling is displayed, and the change in the liquid level of the fuel in the combustion tank of the vehicle caused by stopping on the slope is displayed. The indication value of the remaining fuel amount in which is canceled is displayed.

When the determination in step S14 is NO, that is, when the difference obtained in step S13 is less than the constant A, the process proceeds to step S16, where the last IGN switch stored in the target value storage area 81 in the NVM 8 is used. Is stored in the first target value storage area 342 in the RAM 34 and in the current deflection angle value storage area 343, which is output to the cross coil driver 6. And then the above step S9
Proceed to. Therefore, even if the vehicle is stopped on a slope and the liquid level of the fuel in the combustion tank of the vehicle changes, the display based on the fuel signal generated by the fuel sensor 1 by detecting this is not performed.

After the end of the above-described initial value output processing, the remaining amount-deflection angle conversion processing in step ST0 (FIG. 6) and the mode setting processing in step ST1 (FIG. 6) are performed, and the process proceeds to step S2.
Proceeds to 0, wherein reading the state of the input port slope is connected to I ₄ sensor switch 5, it determines whether the vehicle is in a horizontal state by the state of the read gradient sensor switch 5. When the determination in step S20 is YES, that is, when the vehicle is in the horizontal state, NO is determined in step S21.
In the case of, that is, in the non-horizontal state, the process proceeds to step S22 to determine whether or not the processing mode is the normal mode.

In steps S21 and S22,
Unless the high-speed response mode is set under the following conditions, the normal mode is set and the determination is YES. That is, vehicle speed 0k
m / h, that is, each time the stoppage continues for P seconds, the target value at that time is stored in another target value storage area in the RAM 34, and then the stored value and a predetermined time Q (1
If the difference from the target value obtained every (00 ms sampling time × 16) continuously exceeds R times A or more, the high-speed response mode is entered, and if the difference is smaller than A, the normal mode is entered. In the high-speed mode, a speed pulse is input or IGN
Continue until the switch is turned off.

For this purpose, the CPU 33 performs the processing shown in the flowchart of FIG. 9 for each sampling cycle in the above-mentioned remaining amount-shake angle conversion processing ST0, and A / D converts the analog fuel signal in the first step ST1. To obtain digital fuel data, calculate a deflection angle value based on the digital fuel data, and calculate the calculated deflection angle value as R
The data is sequentially stored in the sampling data storage area 341 in the AM 34. Thereafter, the process proceeds to step ST2, where it is determined whether or not 16 pieces of data are stored in the sampling data storage area 341. If this determination is NO, the process returns to the original process, and if the determination is YES, step ST3 is performed.
, Averaging 16 data, calculating the target value,
This value is multiplied by a weighted average in step ST4, and stored in the first target value storage area 342 in the RAM 34, before returning to the original processing. By the above processing, CPU
33 is a calculating means 33-1 for inputting a fuel signal from the fuel sensor 1 and calculating an indicated value for indicating a remaining fuel amount.
Functioning as

Further, the CPU 33 executes the mode setting processing S
P sec timer is reset by the speed pulse input to the input port I ₂ at T1 performs the processing as shown in the flowchart of FIG. 10 for each counting a predetermined time of P seconds, RAM in the first step ST01
The target value stored in the first target value storage area 342 in the RAM 34 is stored in the second target value storage area 344 in the RAM 34.
It is determined whether or not it has been stored. When this determination is NO, in the next step ST10, the target value stored in the first target value storage area 342 in the RAM 34 is set to R
The process proceeds to step ST11 after being stored in the second target value storage area 344 in the AM 34, but if the determination in step ST01 is YES, the process skips step ST10 and proceeds to step ST11.

In step ST11, the difference Y between the target value stored in the second target value storage area 344 and the target value in the first target value storage area 342, that is, the target value obtained at regular time intervals Q, is calculated. Take. Thereafter, the process proceeds to step ST12 to determine whether or not the difference is equal to or more than A.
In the case of ES, the process proceeds to step ST13 to increment the counter, and then proceeds to step ST14 to determine whether or not the counter value is 2 or more.
In the case of, the process proceeds to step ST15 to set the high-speed response mode and returns to the original processing. If the determination in step ST12 is NO, that is, if the difference is not greater than A, the process proceeds to step ST16 to clear the counter,
In the next step ST17, the normal mode is set and the process returns to the original processing. With the above processing, the CPU 33 calculates the difference between the calculated instruction values before and after the ignition switch is turned on until the start of driving, and detects the presence of refueling when the difference is equal to or greater than the predetermined value A. Functioning as stop detection means 33-32 of supply detection means 33-3.

The determination in step S21 (FIG. 6) is YE
In the normal mode in S, the process proceeds to a swing angle output process A (FIG. 11) in a process routine executed at regular intervals,
In the first step S23, the first
It is determined whether or not the target value of the target value storage area 342 is equal to the current swing angle value storage area 343.
If O, the process proceeds to step S24 to determine whether or not the timer flag FT1 in the flag area 347 in the RAM 34 is on. If this determination is NO, the process proceeds to step S24.
Proceeding to step 25, the N-second timer in the timer area 348 in the RAM 34 is started and the timer flag FT1 is turned on. Thereafter, the process proceeds to step S26 to determine whether N seconds have elapsed. If the determination in step S26 is YES, the process proceeds to step S27, where the data of the swing angle value in the current swing angle value storage area 343 in the RAM 34 is stored. For example, the value is incremented or decremented by a predetermined angle value corresponding to one bit and output to the cross coil driver 6 and the timer flag FT1 is turned off.

As described above, the swing angle value data in the current swing angle value storage area 343 in the RAM 34 is changed one bit at a time every second N seconds to the target value stored in the target value storage area 342. Thus, the pointer can be swung by a unit angle every N seconds for a predetermined time. In other words, the responsiveness of the display performed using the indicated value calculated when there is no refueling as the target value is slower than at the time of refueling. The influence of the fluctuation can be reduced.

When the determination in step S23 is YES, the swing angle output processing A is terminated without any operation. Also,
If the determination in step S24 is YES, step 25
Is skipped and the process proceeds to step S26.
Is NO, the process skips step S27 and proceeds to step S28.

If the determination in step S21 is NO and the high-speed response mode is set, the flow proceeds to the swing angle output processing B (FIG. 12) in the processing routine executed at regular time intervals. It is determined whether the target value of the first target value storage area 342 is equal to the current swing angle value storage area 343. If the determination is NO, the process proceeds to step S30 to determine whether the timer flag FT2 in the RAM 34 is on. If the determination is NO, the process proceeds to step S31 to start the Mms timer in the RAM 34 and to set the timer flag FT
Set 2 Then, the process proceeds to step S32, where Mms
It is determined whether or not the time has elapsed. If the determination in step S32 is YES, the process proceeds to step S33, where the RAM
The increment or decrement of the swing angle data in the current swing angle value storage area 343 in the cross coil driver 34 by, for example, a predetermined angle value corresponding to 1 bit is performed.
And turns off the timer flag FT2, and then proceeds to step S28. As described above, the RAM 34
The data of the swing angle value in the current swing angle value storage area 343 is changed by one bit for every Mms, and the data is changed toward the target value stored in the target value storage area 342 by a first fixed time M.
The pointer can be swung by a unit angle every ms. That is, at the time of refueling on a flat ground, an instruction value calculated based on the liquid level which changes every moment can be promptly displayed.

When the determination in step S29 is YES, the swing angle output processing B is terminated without any operation. Also,
If the determination in step S30 is YES, step 31
Is skipped and the process proceeds to step S32. If the determination in step S32 is NO, step S33 is skipped and the swing angle output process B ends.

On the other hand, the determination in step S22 is YES
In the normal mode, the process immediately goes to step S2 without doing anything.
Proceed to 8. As a result, the deflection angle value output to the cross coil driver 6 in the initial output processing is maintained.

On the other hand, if the determination in step S22 is NO and the high-speed response mode is set, the process proceeds to step S34, where the first target value storage area 342 of the RAM 34 is set.
The difference between the deflection angle value obtained this time and the deflection angle value obtained this time, that is, the value obtained by adding the change in the target value, is set as a new target value in the first target value storage area 34 in the RAM 34.
2 is stored.

Thereafter, the process proceeds to a shake angle output process C (FIG. 13) in a process routine executed at regular intervals, and in the first step S35, the target value of the first target value storage area 342 in the RAM 34 and the current shake are output. Angle value storage area 3
43 is determined to be equal. If the determination is NO, the process proceeds to step S36 to determine whether or not the timer flag FT3 in the RAM 34 is turned on.
If it is O, the process proceeds to step S37, and M
Starts the ms timer and sets the timer flag FT3
Is set. Thereafter, the process proceeds to step S38 to determine whether or not Mms has elapsed.
In the case of ES, the process proceeds to step S39, where the RAM 3
4 is output to the cross coil driver 6 by incrementing or decrementing the swing angle value data in the current swing angle value storage area 343, for example, by a predetermined angle value corresponding to 1 bit, and turning off the timer flag FT3. Then, the process proceeds to step S28.

As described above, the swing angle value data in the current swing angle value storage area 343 in the RAM 34 is changed one bit at a time every Mms, and the data is shifted toward the target value stored in the target value storage area 342 in step S34. The pointer can be swung by a unit angle every one fixed time Mms. That is, even if the fuel is supplied on the sloping land between the time the ignition switch is turned on and the start of traveling, the indicated value of the remaining fuel amount immediately cancels out the change in the liquid level of the fuel in the combustion tank of the vehicle that occurred on the sloping land. Can be displayed.

When the determination in step S35 is YES, the swing angle output processing C is terminated without any operation. Also,
If the determination in step S36 is YES, step 37 is skipped and the process proceeds to step S38. If the determination in step S38 is NO, step S39 is skipped and the swing angle output process C ends.

In step S 28, the position of the pointer, that is, the current swing angle storage area 3 in the RAM 34
It is determined whether or not the swing angle value stored in 43 is equal to or greater than a constant D. If the determination in step S28 is NO, the process proceeds to step S40 to determine whether the timer flag FT4 is on. When the determination is NO, the process proceeds to step S41, in which a timer for a predetermined time, for example, 40 seconds, is started, and the timer flag FT4 is turned on. Is determined. When the determination in step S42 is YES, that is,
The swing angle value stored in the current swing angle storage area continues to be 4
If it is 0 seconds or more and the constant D or more, the process proceeds to step S43 to light the remaining amount warning indicator, and then proceeds to step S44. The determination in step S40 is YE
S, that is, if the timer flag FT4 is off, skip step S41 and proceed to step S42. If the determination in step S42 is NO, that is, if 40 seconds have not elapsed, skip step S43 and proceed to step S44. .

On the other hand, the determination in step S28 is YES
In other words, when the swing angle value stored in the current swing angle storage area 343 in the RAM 34 is not equal to or greater than the constant D, the process proceeds to step S45 to turn off the timer flag FT4, and turns off the remaining amount warning indicator in the subsequent step S46. Before proceeding to step S44. In step S44, it is determined whether or not the IGN switch is off. If the determination is YES, the process returns to step S1. If the determination in step S44 is NO, the process proceeds to step S47 to determine whether or not the engine is on. If the determination is NO, the process proceeds to step S47.
Returning to step 20, the above operation is repeated. On the other hand, if the determination in step S47 is YES, step S4
Proceeding to 8, it is determined whether the vehicle is running. When the determination in step S48 is NO, the process proceeds to an idling display process described later, and when the determination is YES, the process proceeds to a travel display process described later with reference to FIG. In any case, the processing of steps S20 to S48 is continuously performed until the engine is turned on or the IGN switch is turned off.

In the idling display process (FIG. 7), in the first step S50, the input port I
The state of the tilt sensor switch 5 connected to ₄ is read, and it is determined whether or not the vehicle is in a horizontal state based on the read state of the tilt sensor switch 5. Step S
When the determination in Step 50 is YES, that is, when the horizontal state, the process proceeds to Step S51, and when the determination is NO, that is, when the horizontal state, the process proceeds to Step S52 to determine whether the processing mode is the normal mode.

If the determination in step S51 is YES and the mode is the normal mode, the flow advances to step S53 to perform the same processing as steps S23 to S27 described above with reference to FIG. 11, that is, the swing angle output processing A, and then to step S54. As described above, in the engine-on state, the indicated value calculated based on the liquid level that changes every moment on a flat ground is displayed. In addition, the response of the display performed using the calculated value as the target value when there is no refueling slows down, and when the liquid level fluctuates even when there is no refueling on level ground, the indicated value may be affected by this fluctuation. Receive less.

On the other hand, if the determination in step S51 is NO and the high-speed response mode is set, the flow advances to step S55 to execute the same processing as steps S29 to S33 described above with reference to FIG. Proceed to step S54. That is, even if refueling is performed on the sloping land between the time the ignition switch is turned on and the start of traveling, the indicated value of the remaining fuel amount is displayed, which cancels the change in the liquid level of the fuel in the combustion tank of the vehicle that occurred on the sloping land. In addition, the responsiveness of this display is faster than the display performed using the indicated value calculated when there is no refueling as the target value, and the indicated value reflecting the increase in the liquid level due to refueling is displayed quickly.

On the other hand, the determination in step S52 is YES
In the normal mode, the process proceeds to step S56, in which 2 times per hour corresponding to the sampling period.
16 data obtained by subtracting from the current fuel remaining amount (the target value of the swing angle value) at the rate of liter (l) are obtained by calculation,
A weighted average is calculated based on the 16 data to calculate a target value. By this processing, the CPU 33 determines that there is a predetermined fuel consumption per unit time and sequentially determines a predetermined value from the current indicated value every predetermined time when detecting a non-horizontal state from the time the engine is turned on until the start of traveling. It functions as a second calculating means 33-4 for calculating the indicated value of the remaining fuel amount by subtraction.

Thereafter, the flow advances to step S57 to store the target value in the third target value storage area 345. Thereafter, the process proceeds to a shake angle output process D (FIG. 14) in a process routine executed at regular intervals, and in the first step S58, the target value of the third target value storage area 345 in the RAM 34 and the current shake angle value It is determined whether or not the storage area 343 is equal. If this determination is NO, step S59 is performed.
Then, it is determined whether or not the timer flag FT5 in the RAM 34 is turned on. If the determination is NO, the process proceeds to step S60 to start the N second timer in the RAM 34 and set the timer flag FT5. Thereafter, the process proceeds to step S61 to determine whether N seconds have elapsed.
When the determination in step S61 is YES, the process proceeds to step S62, in which the swing angle data in the current swing angle value storage area 343 in the RAM 34 is incremented or decremented by, for example, a predetermined angle value corresponding to 1 bit, and crossed. Output to the coil driver 6 and turn off the timer flag FT5.

As described above, the swing angle value data in the current swing angle value storage area 343 in the RAM 34 is changed by one bit every N seconds to the target value stored in the target value storage area 342 in step S57. The pointer can be swung by a unit angle every N seconds for a fixed time. That is, even if the liquid level of the fuel in the combustion tank of the vehicle changes on a slope when the vehicle is stopped, this is not detected and the display based on the fuel signal generated by the fuel sensor 1 is not performed.
Moreover, the decrease in the remaining fuel amount consumed by turning on the engine is reflected in the indicated value with a certain degree of accuracy.

If the determination in step S58 is YES, the swing angle output processing D ends without performing any operation. Also,
If the determination in step S59 is YES, step S60 is skipped and the process proceeds to step S61. If the determination in step S61 is NO, step S62 is skipped and the swing angle output process D ends.

On the other hand, if the determination in step S52 is NO and the high-speed response mode is set, the process proceeds to step S63, where steps S34 to S described above with reference to FIG.
After performing the same processing as in step S39, that is, the swing angle output processing C, the process proceeds to step S54. Therefore, even if refueling is performed on the slope between the time when the engine is turned on and the start of traveling, an indication value of the remaining fuel amount that cancels out the change in the liquid level of the fuel in the combustion tank of the vehicle caused on the slope is displayed. The responsiveness of this display is faster than the display performed using the indicated value calculated as the target value when there is no refueling, and the indicated value immediately reflects the increase in the liquid level due to refueling is displayed. In step S54, the same warning process as steps S28, S40 to S43, S45, and S46 described above with reference to FIG. 6 is performed, and then the process proceeds to step S64.

In the above step S64, it is determined whether or not the IGN switch is off, and this determination is YES.
In the case of, the process returns to step S1. If the determination in step S64 is NO, the process proceeds to step S65 to determine whether or not the engine is off. If the determination is YES, the process returns to step S20 to repeat the above-described operation. On the other hand, if the determination in step S65 is YES, the process proceeds to step S66 to determine whether the vehicle speed is not 0 km / h, that is, whether or not the vehicle is traveling. If the determination in step S66 is NO, the process proceeds to step S5
After returning to 0, the above-described operation is repeated, and when the determination is YES, the process proceeds to a traveling display process described later with reference to FIG. In any case, the processes in steps S50 to S66 are continuously performed until the vehicle runs, the engine is turned off, or the IGN switch is turned off.

In the traveling display process (FIG. 8), in the first step S70, it is determined whether or not the vehicle is in a horizontal state based on the state of the inclination sensor switch 5. When the determination in step S70 is YES, that is, when the vehicle is in the horizontal state, the process proceeds to step S71. When the determination is NO, that is, when the vehicle is in the non-horizontal state, the process proceeds to step S72.
In step S71, the same processing as in steps S23 to S27 described above with reference to FIG. 6, that is, the swing angle output processing B is performed, and the process returns to step S64. In other words, in the traveling state, the indicated value calculated based on the liquid level that changes every moment on the flat ground is displayed, and the response of the display performed with the calculated indicated value as the target value when there is no refueling becomes slow, and the flat road running is performed. If the liquid level fluctuates occasionally, the indication value is less affected by this fluctuation.

On the other hand, in step S72, 6 km is used for each time corresponding to the sampling period.
16 obtained by reducing fuel consumption at the rate of
A target value is calculated by weighted averaging based on this data.
By this processing, the CPU 33 determines that the vehicle travels a predetermined distance per unit amount when the inclination detecting means detects the non-horizontal state during the traveling of the vehicle, and according to the traveling distance from the current instruction value at predetermined time intervals. It functions as a third calculating means 33-5 for sequentially subtracting a predetermined value and calculating an instruction value of the remaining fuel amount.

Thereafter, the flow advances to step S73 to store the target value in the fourth target value storage area 346, and thereafter, executes a deflection angle output process E in a process routine executed at regular intervals.
Proceeding to FIG. 15, in the first step S74, it is determined whether or not the target value of the fourth target value storage area 346 in the RAM 34 is equal to the current swing angle value storage area 343. If this determination is NO, the process proceeds to step S75 to determine whether or not the timer flag FT6 in the RAM 34 is ON. If this determination is NO, the process proceeds to step S75.
Proceeding to 76, the N second timer in the RAM 34 is started and the timer flag FT6 is set. Thereafter, the process proceeds to step S77 to determine whether N seconds have elapsed. If the determination in step S77 is YES, the process proceeds to step S7.
In step S8, the swing angle value data in the current swing angle value storage area 343 in the RAM 34 is incremented or decremented by a predetermined angle value corresponding to, for example, 1 bit, and output to the cross coil driver 6 and a timer. The flag FT6 is turned off. As a result, the target value obtained for each constant time Q is stored in the fourth target value storage area 346 in the RAM 34, and the pointer is moved one bit every N seconds toward the target value. If the determination in step S74 is YES, the swing angle output processing E ends without doing anything. If the determination in step S77 is NO and N seconds have not elapsed, step S78 is skipped and the deflection angle output processing E ends. By the above, even if the liquid level of the fuel in the combustion tank of the vehicle changes while traveling on the slope,
By detecting this, the display based on the fuel signal generated by the fuel sensor 1 is not performed, and the decrease in the remaining fuel amount consumed by the running of the vehicle is reduced to an indicated value with a certain degree of accuracy. Will be reflected.

Although the position of the inclination sensor switch 5 is not specifically described in the above description of the embodiment, generally, the position of the inclination sensor switch 5 is provided on the rear surface of the vehicle combination meter case in which the vehicle fuel remaining amount display device is built. It can be installed, and when installed in this way, it is not necessary to route the signal line as compared with the case where it is installed elsewhere in the vehicle body, and it can be handled integrally with the combination meter, and in terms of assembly workability etc. It is also advantageous in that noise resistance is improved and that measures against water exposure are not required.

The processing performed in the flowcharts of FIGS. 5 to 15 is summarized as shown in FIGS. 16 and 17. That is, when the IGN switch is turned on, first, an analog fuel signal, which is a voltage signal from the sender 1 corresponding to the liquid level of the fuel in the fuel tank, is A / D converted and its value is read. Is read (process 1), the read A / D values are averaged (process 2), and the averaged A / D value is converted into an angle (process 3), whereby the sender voltage is converted into the deflection angle of the fuel meter. Can be converted. For this conversion, the RAM 34 in the microcomputer 3 stores data indicating the correspondence between the sender voltage, the liquid level, and the angle indicated by the fuel gauge.

Subsequently, the designated angle I of the pointer of the fuel gauge when the IGN switch is turned on is determined with reference to the state of the inclination sensor switch 5 read in the processing 1 and set as a target value (processing 4). The determination of the designated angle is performed as follows. Assuming that the angle data stored immediately before the last time the IGN switch was turned off is A ′, the pointer angle data is B ′, the angle data indicated immediately after the current IGN switch on is A, and the indicated angle data is B, the indicated angle I is When it is determined from the state of the tilt sensor switch 5 that it is horizontal, I = A (= B), and when it is determined that it is not horizontal, A−A ′ ≧ 10
In the case of an angle of liter, I = B '+ (AA'), and in the case of A-A '<10 liter, I = B'. For example, when A '= 9, B' = 10, and A = 20, the indicated angle I = A of the fuel gauge becomes I = A = 10 + (20-9) = 21. When there is no stored data, the same designated angle as in the horizontal state is determined.

Subsequently, a weighted averaging process is performed on the average value of the A / D values (process 5), and while the pointer is moved toward the target value (process 6), the designated angle of the fuel gauge obtained in process 5 and the process are performed. The target value determined in Step 4 is compared with the target value (Step 7), and Steps 5 to 7 are repeated until they match. If they match, it is then determined whether the vehicle is stopped or not stopped, the engine is turned on or off, the high-speed mode or the normal mode, and these are stored (step 8) before proceeding to the next step. Thereafter, analog fuel signals, which are voltage signals from the sender 1, are A / D-converted, for example, every 100 ms, and the values are read (process 9), as in the case of the process 1 (process 9).
/ D values are averaged (process 10). Subsequently, a wiring check is performed for the presence or absence of a disconnection, a short circuit, or the like (process 11).
If there is any abnormality by this check, an abnormality alarm is issued (process 12), and if there is no abnormality, the A / D value obtained by averaging in process 10 is converted into an angle (process 1).
3).

Thereafter, a mode discrimination process of the high-speed mode normal mode is performed (process 14). In this process, it is determined whether the vehicle speed is not 0 (running) or 0 (stop),
When the vehicle speed is no longer 0, the mode that was in the high-speed mode is switched to the normal mode. When the vehicle speed becomes 0, the angle data read by the voltage from the sender 1 at that time for a predetermined period of time, for example, 5 seconds, is A.
1. Assuming that the designated angle data is B1, A
1 and | B1−A1 | = ΔA are stored, and when the read angle data is A2, when A2−A1 ≧ 10 liter angle, the high-speed mode is set at that time. Incidentally, it takes 30 minutes in the normal mode to move the pointer from the empty (E) to the full (F), but in 70 seconds in the high-speed mode.

After the mode discriminating process is performed in process 14, the angle indicated by the pointer of the fuel gauge is calculated (process 1).
5). The calculation of the designated angle is performed under the conditions 1 to 5 as described below. First, the engine off, non-horizontal,
The condition 1 including the conditions of the stop and the normal mode is assumed to be immediately after the engine stall or the IGN switch ON state. Under this condition, the indication of the fuel gauge only needs to be given to the position immediately before the engine stall, and the pointer of the meter does not move. Next, condition 2 consisting of non-level, stop, and high-speed mode conditions assumes that the vehicle stops at the gas station non-horizontally and receives refueling. A2 is corrected by ΔA. Further, condition 3 including the conditions of engine on, non-level, stationary, and normal mode
Assumes an idle stop on a non-horizontal road surface. Under this condition, the fuel gauge indicates a fixed amount (for example, 2 liters /
h) Subtract one by one. Then again, the engine on, non-horizontal,
Condition 4 consisting of running (normal mode) conditions assumes running, braking, and starting on a non-horizontal road surface. In this condition, the indication of the fuel gauge is subtracted by a fixed amount (for example, 6 km / liter). Under condition 5, which consists of turning the engine on and off, running, stopping, and all high-speed modes, the fuel gauge indication is calculated from the angle data obtained from the voltage from the sensor 1.

It should be noted that, following the above-mentioned process 15, the above condition 2
At the time of calculation of the designated angle in Steps (5) to (5), weighted averaging is performed to calculate the target value of the swing angle value of the pointer by performing a weighted average of the collected eight shake angle values (Process 16). Then, the pointer of the fuel gauge is swung up to the calculated designated angle for each unit bit (process 17). At this time, at a speed of 240 ms / bit in the high-speed mode, and 0.2 ° at a speed of 6.4 seconds / bit in the normal mode.
Shake one by one. The above processes 8 to 17 are repeated until the IGN switch is turned off. When it is determined that the IGN switch is turned off (process 18), the CPU is set to the standby state (process 19), and then the IGN switch is turned on again. Wait for

[0139]

As described above, according to the first aspect of the present invention, the engine is started from the time when the ignition switch is turned on until the time when the engine is turned on, or
Since there is no change in the remaining amount of fuel unless refueling, that is, refueling, when the vehicle is on a slope, the indicated value of the remaining amount of fuel is held, and a display based on the indicated value calculated based on the fuel signal from the fuel sensor is not performed. Even if the ignition switch is turned on when the vehicle is on a slope, the same value as the indicated value of the remaining fuel when the ignition switch is off is displayed until the engine is started. Even if the liquid level of the fuel in the combustion tank changes, this is not detected and displayed, and even when the vehicle is inclined and not in a horizontal state, there is almost no effect on the remaining fuel level. Can be displayed accurately.

According to the second aspect of the present invention, the first aspect is provided.
In addition to the effects of the invention described above, when the indicated value of the remaining fuel amount when the ignition switch is turned off is unknown, the same value as that when the indicated value is not stored in the storage means 8 based on the fuel signal from the fuel sensor. Since the display is performed based on the calculated indicated value, even if the indicated value of the fuel remaining amount is not known when the ignition switch is turned on, nothing is displayed.

According to the third aspect of the present invention, the first aspect
Or in addition to the effect of the invention described in 2 above, when refueling is performed on a slope with the ignition switch off,
Since the difference between the indicated value immediately after the ignition switch is turned on and the indicated fuel level when the ignition switch is off is added to the indicated fuel level when the ignition switch is off, the indicated value is displayed. Even if fuel is supplied when the switch is turned off, the change in the liquid level of the fuel in the combustion tank of the vehicle caused by stopping on the slope is canceled out, and the indication value of the remaining fuel amount is displayed, adding the amount increased by refueling. In addition, even when the vehicle is inclined and not in a horizontal state, the remaining amount can be accurately displayed without being substantially affected by the inclination.

According to the invention set forth in claim 4, according to claim 3,
In addition to the effects of the invention described above, replenishment of fuel immediately after the ignition switch is turned on, that is, whether or not refueling is performed, a difference between the indicated value of the remaining fuel amount when the ignition switch is turned off and the indicated value immediately after the ignition is turned on is a predetermined value. As described above, even if refueling is performed on a slope before turning on the ignition switch, the change in the liquid level of the fuel in the combustion tank of the vehicle caused by stopping on the slope will be canceled out. It is possible to detect the presence or absence of refueling more accurately than when judging from the change in the liquid level, and to accurately determine the remaining amount even when the vehicle is inclined and not in a horizontal state. Can be displayed.

According to the fifth aspect of the present invention, even if the fuel is supplied between the time when the ignition switch is turned on and the start of traveling, the indicated value of the increase due to refueling is displayed, and the combustion tank of the vehicle generated on the sloped land is displayed. The indication value of the remaining fuel level that has canceled out the change in the liquid level of the fuel inside is displayed, and the indication value can be displayed promptly. Even when it is not present, the remaining amount can be accurately displayed with almost no influence.

According to the invention set forth in claim 6, according to claim 5,
In addition to the effects of the described invention, during the period from the turning on of the ignition switch to the start of driving, when refueling on level ground,
It is possible to display the indicated value calculated based on the constantly changing liquid level, and to promptly display the indicated value at the time of refueling even on level ground.

According to the invention of claim 7, according to claim 6,
In addition to the effects of the invention described above, during the period from the time the ignition switch is turned on to the time the vehicle starts running, the responsiveness of the display performed using the indicated value calculated when there is no refueling as a target value is delayed as compared with the time of refueling, and the refueling is performed on flat ground. In the case where the liquid level fluctuates despite the absence of the above, the influence of the fluctuation on the indicated value can be reduced.

According to the eighth aspect of the present invention, when the vehicle is on a slope from the time the engine is turned on until the start of running, the command value is changed and displayed as indicating that a predetermined amount of fuel is consumed per unit time. Even if the vehicle stops and the liquid level of the fuel in the combustion tank of the vehicle changes, no indication is made based on the detected fuel signal, and the remaining fuel amount consumed by turning on the engine Is reflected in the indicated value with a certain degree of accuracy. Therefore, even when the vehicle is not inclined and is not in a horizontal state, the remaining amount can be accurately displayed with little influence.

According to the ninth aspect of the present invention, the eighth aspect of the present invention is provided.
In addition to the effects of the invention described above, between the time the engine is turned on and the start of traveling, in the engine on state, an indication value calculated based on the fluid level that is constantly changing on a flat ground is displayed, and the response of this display is delayed. Therefore, when the liquid level fluctuates even when there is no refueling on a level ground, the influence of the fluctuation on the indicated value can be reduced.

According to the tenth aspect of the present invention, in addition to the effects of the eighth or ninth aspect, even if refueling is performed on the sloped land between the time when the ignition switch is turned on and the start of traveling, the vehicle generated on the sloped ground is provided. Of the fuel level in the combustion tank in which the change in the liquid level of the fuel is canceled, and the responsiveness of this display is smaller than the display in which the calculated value is used as the target value when there is no refueling. Display the indication value immediately reflecting the increase in the liquid level due to refueling, so that even when the vehicle is inclined and not in a horizontal state, the remaining amount is accurately displayed with little effect. Can be.

According to the eleventh aspect of the present invention, in addition to the effects of the tenth aspect, even if refueling is performed on a flat ground between the time the engine is turned on and the start of traveling, when refueling on a flat ground, The indicator value calculated based on the constantly changing liquid level is displayed, and the response of this display is faster than the display performed using the calculated value as the target value when there is no refueling. Since the instruction value reflecting the increase in the level is displayed promptly, the remaining amount can be accurately displayed with little influence even when the vehicle is inclined and not in a horizontal state.

According to the twelfth aspect of the present invention, in addition to the effect of the eighth aspect, at the time of refueling on a flat ground performed between the time when the ignition switch is turned on and the start of traveling, the fuel is supplied when the fuel is not supplied. An indication value based on a value that is increased or decreased toward the target value with the calculated indication value as a target value is promptly displayed without increasing the response of the display.

According to the thirteenth aspect of the present invention, in addition to the effects of the sixth, seventh and twelfth aspects of the present invention, the presence or absence of fuel replenishment, that is, refueling, from when the ignition switch is turned on to when the engine starts running is determined. Detected based on whether the difference between the calculated preceding and following indicated values is equal to or greater than a predetermined value,
Since the change in the liquid level of the fuel in the combustion tank of the vehicle caused by stopping on the slope is canceled out, the presence / absence of refueling is detected with higher accuracy than when judging simply by the change in the liquid level. Thus, even when the vehicle is inclined and not in a horizontal state, the remaining amount can be accurately displayed with almost no influence.

According to the fourteenth aspect of the present invention, when the vehicle is traveling on a slope, the fuel remaining amount is calculated based on an instruction value calculated per unit time as fuel consumption corresponding to the distance traveled during the unit time. Even if the liquid level of fuel in the combustion tank of the vehicle changes when the vehicle runs on a slope and the fuel level is changed, the display based on the detected fuel signal is not performed, and the amount of fuel consumed by traveling of the vehicle is displayed. Since the amount of fuel remaining is reflected in the indicated value with a certain degree of accuracy, even when the vehicle is inclined and not in a horizontal state, the remaining amount can be accurately measured without being significantly affected. Can be displayed.

According to the fifteenth aspect of the present invention, in addition to the effect of the fourteenth aspect, in the traveling state, the designated value calculated based on the liquid level which changes every moment on a flat ground is set as a target value. Since the fuel remaining amount is displayed based on a value that is increased or decreased by a constant value at regular time intervals toward the target value, the response level of this display is slowed down, so that the level of the liquid level fluctuates when traveling on level ground. In this case, the indication value can be less affected by the fluctuation.

According to the sixteenth aspect of the present invention, when refueling is performed on an inclined land between the time when the engine is turned on and the time when the vehicle starts running, the difference between the temporarily stored previous instruction value and the previous instruction value is added to the previous instruction value. An indication of the remaining fuel level that displays the remaining fuel level based on the value that has been incremented by a constant value at regular intervals toward the value, and cancels the change in the liquid level of the fuel in the combustion tank of the vehicle that occurred on the slope. Values are displayed, and the response of this display is made faster than when there is no refueling, so that the indicated value reflecting the increase in the liquid level due to refueling can be displayed quickly.

According to the seventeenth aspect, during the period from when the engine is turned on to when the vehicle starts running, the difference between the temporarily stored instruction value and the previous instruction value is fixed toward the instruction value obtained by adding the difference to the previous instruction value. The remaining fuel level is displayed based on a value that is incremented by a constant value every time, and even if refueling is performed on a slope, the remaining fuel level that cancels the change in the liquid level of the fuel in the combustion tank of the vehicle that occurs on the slope is cancelled. In both flat and sloping terrain, the responsiveness of this display is made faster than when there is no refueling, and the indicating value that immediately reflects the increase in the liquid level due to refueling is displayed. Even when the vehicle is inclined and not in a horizontal state, the remaining amount can be accurately displayed without being substantially affected by the inclination.

According to the eighteenth aspect of the invention, in addition to the effects of the sixteenth or seventeenth aspect, even if the fuel is supplied between the time when the ignition switch is turned on and the time when the engine starts running, the vehicle stops on the slope and stops. The resulting change in the fuel level in the fuel tank in the vehicle is canceled out, and the presence / absence of refueling can be detected more accurately than when the determination is made simply based on the change in the liquid level. In addition, even when the vehicle is inclined and not in a horizontal state, the remaining amount can be accurately displayed without being substantially affected by the inclination.

According to the nineteenth aspect of the present invention, even if the fuel is supplied on the slope when the ignition switch is turned off, or the fuel is supplied between the time when the ignition switch is turned on and the start of traveling, the vehicle stops on the slope and occurs. The display of the remaining fuel level indicates the amount of change in the fuel level in the combustion tank of the vehicle that has been canceled, and the level at the time of refueling is displayed promptly. Even when it is not present, the remaining amount can be accurately displayed with almost no influence.

According to the twentieth aspect of the invention, in addition to the effects of the nineteenth aspect, even if the vehicle is stopped on a slope and the level of fuel in the combustion tank of the vehicle changes, this will be reduced. The indication based on the detected fuel signal is not performed, and the decrease in the fuel remaining amount consumed by turning on the engine is reflected in the indicated value with a certain degree of accuracy. It is possible to accurately display the remaining amount even when it is not in a horizontal state, with almost no influence.

According to the twenty-first aspect of the present invention, an indication value calculated on the basis of the liquid level which changes every moment on the flat ground after the engine is turned on is displayed, and the vehicle stops on the slope and stops in the combustion tank of the vehicle. Even if the fuel level changes, no indication is made based on the detected fuel signal, and a certain degree of accuracy is instructed to reduce the fuel remaining amount consumed by turning on the engine. Even if the fuel level in the vehicle's combustion tank changes when the vehicle travels on a slope, the display is not based on the detected fuel signal. The decrease in fuel remaining amount is reflected in the indicated value with a certain degree of accuracy, so that even when the vehicle is not inclined and is not level, it is hardly affected and the remaining amount can be accurately determined. And it can be displayed with a smooth change.

[Brief description of the drawings]

FIG. 1 is a diagram showing a basic configuration of a vehicle fuel remaining amount display device according to the present invention.

FIG. 2 is a diagram showing one embodiment of a vehicle fuel remaining amount display device according to the present invention.

FIG. 3 is a view showing various areas in a RAM included in μCOM in FIG. 2;

FIG. 4 is a diagram showing various areas in the nonvolatile memory in FIG. 2;

FIG. 5 is a flowchart showing a part of a process performed by μCOM of the arithmetic control unit in FIG. 2;

FIG. 6 is a flowchart showing another part of the processing performed by the μCOM of the arithmetic control unit in FIG. 2;

FIG. 7 is a flowchart showing yet another portion of the processing performed by the μCOM of the arithmetic control unit in FIG. 2;

8 is a flowchart illustrating another part of the processing performed by the μCOM of the arithmetic control unit in FIG. 2;

FIG. 9 is a flowchart showing the content of a remaining amount-shake angle conversion process in FIG. 6;

FIG. 10 is a flowchart showing the contents of a mode setting process in FIG. 6;

11 is a flowchart showing the contents of a swing angle output process A in FIG. 6;

FIG. 12 is a flowchart showing the contents of a swing angle output process B in FIG. 6;

FIG. 13 is a flowchart showing the contents of a swing angle output process C in FIG. 6;

14 is a flowchart showing the contents of a swing angle output process D in FIG. 7;

FIG. 15 is a flowchart showing the contents of a swing angle output process E in FIG. 8;

FIG. 16 is a diagram summarizing a part of processing performed in the flowcharts of FIGS. 5 to 15;

FIG. 17 is a diagram summarizing another part of the processing performed in the flowcharts of FIGS. 5 to 15;

[Explanation of symbols]

Reference Signs List 1 fuel sensor 5 tilt detecting means (tilt sensor switch) 7 display means (cross coil) 8 storage means (non-volatile memory, NVM) 33-1 calculation means, first calculation means (CPU) 33-2 drive control means ( 33-3) Supply detection means (CPU) 33-31 Immediately after ignition-on detection means (CP
U) 33-32 Stop detection means (CPU) 33-4 Second calculation means (CPU) 33-5 Third calculation means (CPU) 344 Temporary storage means (RAM)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akihiko Makida 1-7-1 Yokoi, Shimada-shi, Shizuoka Yazaki Keiki Co., Ltd. (72) Inventor Yoshifumi Fukushima 1-7-1, Yokoi, Shimada-shi, Shizuoka Yazaki Keiki (72) Inventor Masanobu Sato 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (72) Inventor Hiroshi Kurahashi 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation

Claims (21)

[Claims] 1. A display means for displaying an indicated value, a fuel sensor for detecting a liquid level of fuel in a combustion tank of a vehicle to generate a fuel signal, and a fuel signal input from the fuel sensor to receive fuel. Calculating means for calculating an instruction value of the remaining amount; driving control means for controlling the display means to display the remaining fuel amount on the display means; and when the ignition switch is turned off, the driving control means A storage means capable of storing the indicated value of the remaining fuel amount displayed on the display means in place of the previous storage, and storing the stored value even while the ignition switch is off; and Tilt detection means for detecting a non-horizontal state and a horizontal state other than the above, wherein the drive control means is configured such that the tilt detection means detects water during a period from turning on an ignition switch to turning on an engine. When the flat state is detected, the remaining fuel amount is displayed on the display means based on the instruction value calculated by the calculation means, and immediately after the ignition switch is turned on, the inclination detecting means detects the non-horizontal state. When the fuel level is displayed on the display unit based on the instruction value stored in the storage unit, the display is maintained until the engine is turned on while the inclination detecting unit detects a non-horizontal state. A fuel level display device for a vehicle, comprising: 2. The method according to claim 1, wherein the drive control unit displays the remaining fuel amount on the display unit based on the instruction value calculated by the arithmetic unit when there is no instruction value stored in the storage unit. The vehicle fuel remaining amount display device according to claim 1. 3. A refueling detecting means for detecting whether or not fuel is replenished, wherein the drive control means detects the refueling when the inclination detecting means detects a non-horizontal state immediately after turning on an ignition switch. When the means detects replenishment, the difference between the instruction value stored in the storage means and the instruction value calculated by the arithmetic means is calculated, and the difference is added to the instruction value stored in the storage means. 3. The apparatus according to claim 1, wherein the display unit displays the remaining fuel based on the value. 4. The replenishment detection means calculates a difference between an instruction value stored in the storage means and the instruction value calculated by the arithmetic means immediately after an ignition switch is turned on, and determines the difference as a predetermined predetermined value. 4. The fuel remaining amount display device for a vehicle according to claim 3, further comprising an ignition-on detection means for detecting the presence of refueling when the value is equal to or more than the value. 5. A display means for displaying an indicated value, a fuel sensor for detecting a liquid level of fuel in a combustion tank of a vehicle to generate a fuel signal, and receiving a fuel signal from the fuel sensor to receive a fuel signal. Calculating means for calculating an instruction value for indicating the remaining amount; driving control means for controlling the display means to display the remaining fuel amount on the display means; and replenishing for detecting the presence or absence of refueling Detection means, and inclination detection means for detecting a non-horizontal state in which the vehicle is inclined by a predetermined angle or more and a horizontal state other than the predetermined angle, wherein the drive control means comprises: When the detecting means is detecting the non-horizontal state, when the replenishment detecting means detects replenishment, the difference between the preceding and following indicated values calculated by the calculating means is calculated, and the difference is added to the previous indicated value. Instructions A fuel remaining amount display device for a vehicle, characterized in that the display means displays the remaining fuel amount based on a value that is incremented by a constant value at every first constant time toward the target value with the value as a target value. 6. The drive control means includes: an operation means for detecting a horizontal state of the inclination detection means during a period from turning on of an ignition switch to a start of traveling; And displaying the remaining fuel amount on the display means based on a value that is incremented by a constant value at each of the first fixed time intervals toward the target value, using the indicated value calculated by the above as a target value. The fuel remaining amount display device for a vehicle as described in the above. 7. The drive control means includes: a drive control means that controls the operation of the arithmetic means when the inclination detection means detects a horizontal state, when the ignition switch is turned on, and when the replenishment detection means detects no replenishment. Displaying the fuel remaining amount on the display means based on a value that is increased or decreased by a fixed value at every second fixed time that is longer than the first fixed time toward the target value, using the indicated value calculated as the target value. The vehicle fuel remaining amount display device according to claim 6, wherein: 8. A display means for displaying an indication value, a fuel sensor for detecting a liquid level of fuel in a combustion tank of a vehicle to generate a fuel signal, and a fuel signal for inputting a fuel signal from the fuel sensor. First computing means for computing an instruction value for instructing the remaining amount; driving control means for controlling the display means to display the remaining fuel amount on the display means; A tilt detecting means for detecting a non-horizontal state and other horizontal states, and a predetermined fuel per unit time when the tilt detecting means detects a non-horizontal state during a period from turning on of the engine to start of traveling. Second computing means for sequentially subtracting a predetermined value from a current instruction value every predetermined time assuming that there is consumption and calculating an instruction value of a remaining fuel amount, wherein the drive control means starts running from turning on the engine. Until the tilt A fuel remaining amount display device for a vehicle, wherein when the detecting means detects a non-horizontal state, the fuel remaining amount is displayed on the display means based on the instruction value calculated by the second calculating means. 9. The drive control means sets an instruction value calculated by the first calculation means as a target value when the inclination detection means detects a horizontal state from a time when the engine is turned on to a start of traveling. 9. The fuel remaining amount display device for a vehicle according to claim 8, wherein the fuel remaining amount is displayed on the display means based on a value increased or decreased by a constant value at every second constant time toward the target value. 10. A refueling detecting means for detecting whether or not fuel is replenished, wherein the drive control means detects the non-horizontal state of the inclination detecting means during a period from turning on an ignition switch to starting traveling. When the replenishment is detected by the replenishment detecting means, the difference between the preceding and following indicated values calculated by the first calculating means is calculated, and the difference obtained by adding the difference to the previous indicated value is used as the target value to determine the target value. 10. The fuel supply system according to claim 8, wherein the display unit displays the remaining fuel amount based on a value that is incremented by a constant value at every first fixed time shorter than the second fixed time toward the value. Vehicle fuel level display device. 11. The drive control means according to claim 1, wherein said tilt detection means detects a horizontal state during a period from turning on of an engine to a start of driving, and said first detection means detects a state of replenishment by said replenishment detection means. The indication value calculated by the calculating means is set as a target value, and the remaining fuel amount is displayed on the display means based on a value increased or decreased by a constant value at every first fixed time shorter than the second fixed time toward the target value. The fuel level display device for a vehicle according to claim 10, wherein the display is performed. 12. A refueling detecting means for detecting whether or not fuel is replenished, wherein the drive control means detects when the inclination detecting means detects a horizontal state during a period from turning on an ignition switch to starting driving. When the replenishment is detected by the replenishment detecting means, the instruction value calculated by the first calculating means is set as a target value toward the target value and is fixed at every first fixed time shorter than the second fixed time. The fuel remaining amount is displayed on the display means based on the value incremented by the value, and when the replenishment detecting means detects the absence of replenishment, the indicated value calculated by the first computing means is used as the target value as the target value. 9. The vehicle fuel remaining amount display device according to claim 8, wherein the fuel remaining amount is displayed on the display means based on a value which is increased or decreased by a fixed value at every second fixed time. 13. The replenishment detection means calculates a difference between successive indication values calculated by the calculation means or the first calculation means during a period from turning on of an ignition switch to start of traveling, and the difference is determined in advance. 13. The vehicle fuel remaining amount display device according to claim 5, further comprising a vehicle stoppage time detecting means for detecting the presence of fuel supply when the fuel supply amount is equal to or more than a predetermined value. 14. A display means for displaying an indicated value, a fuel sensor for detecting a liquid level of fuel in a combustion tank of a vehicle to generate a fuel signal, and receiving a fuel signal from the fuel sensor to receive fuel. First computing means for computing an instruction value for instructing the remaining amount; driving control means for controlling the display means to display the remaining fuel amount on the display means; A slope detecting means for detecting a non-horizontal state and a horizontal state other than the above. A third calculating means for sequentially subtracting a predetermined value according to a running distance from a current indicating value to calculate an indicating value of a remaining fuel amount, wherein the drive control means controls the inclination while the vehicle is running. If the detection means detects a non-horizontal state And displaying the remaining fuel amount on the display means based on the instruction value calculated by the third calculating means. 15. The driving control means, wherein the vehicle is running,
When the inclination detecting means is detecting a horizontal state, the indicated value calculated by the first calculating means is set as a target value based on a value which is increased or decreased by a constant value at every second constant time toward the target value. 15. The fuel remaining amount display device for a vehicle according to claim 14, wherein the remaining fuel amount is displayed on the display means. 16. A display means for displaying an indicated value, a fuel sensor for detecting a liquid level of fuel in a combustion tank of a vehicle to generate a fuel signal, and receiving a fuel signal from the fuel sensor to obtain a fuel signal. Calculating means for calculating an instruction value for indicating the remaining amount; driving control means for controlling the display means to display the remaining fuel amount on the display means; and each time the vehicle stops for a certain period of time. Temporary storage means for temporarily storing the latest target value; replenishment detection means for detecting the presence or absence of fuel replenishment; and detecting a non-horizontal state in which the vehicle is inclined by a predetermined angle or more and a horizontal state other than this. The drive control means, between the time the ignition switch is turned on and the start of traveling, when the tilt detection means detects a non-horizontal state, when the supply detection means detects that replenishment is present, Previous The difference between the designated value stored in the temporary storage means and the designated value calculated by the computing means is calculated, and the difference is added to the designated value stored in the temporary storage means. A fuel remaining amount display device for a vehicle, wherein a remaining fuel amount is displayed on the display means based on a value incremented by a constant value at every first constant time toward the value. 17. A display means for displaying an indicated value, a fuel sensor for detecting a liquid level of fuel in a combustion tank of a vehicle to generate a fuel signal, and a fuel signal for inputting a fuel signal from the fuel sensor. Calculating means for calculating an instruction value for indicating the remaining amount; drive controlling means for controlling the display means to display the remaining fuel amount on the display means; And a tilt detecting means for detecting a horizontal state other than the above state, wherein the drive control means includes: When the detection means detects that replenishment has been performed, the inclination detection is performed based on a value that is incremented by a constant value at every first fixed time toward the target value with the indicated value calculated by the first calculation means as a target value. Means are non-water When the state is detected, the difference between the indicated value stored in the temporary storage means and the indicated value calculated by the calculating means is calculated when the supply is detected by the supply detecting means, and the difference is calculated as the temporary value. The command value added to the command value stored in the storage means is set as a target value, and the remaining fuel amount is set based on a value which is incremented by a constant value at regular intervals equal to the first constant time toward the target value. A fuel remaining amount display device for a vehicle, characterized in that the information is displayed on a display means. 18. The replenishment detection means calculates a difference between an instruction value stored in the temporary storage means and an instruction value calculated by the calculation means during a period from turning on an ignition switch to starting traveling. 18. The fuel level display device for a vehicle according to claim 16, further comprising a stop-time detecting means for detecting the presence of refueling when there is a predetermined value or more. 19. A display means for displaying an indicated value, a fuel sensor for detecting a liquid level of fuel in a combustion tank of a vehicle to generate a fuel signal, and receiving a fuel signal from the fuel sensor to receive a fuel signal. Calculating means for calculating an instruction value for instructing the remaining amount; driving control means for controlling the display means to display the remaining fuel amount on the display means; and when the ignition switch is turned off, Storage means capable of storing an instruction value of the remaining fuel amount displayed on the display means by the drive control means in place of the previous storage, and storing the storage even while the ignition switch is off; Replenishment detection means for detecting the presence or absence of replenishment; and inclination detection means for detecting a non-horizontal state in which the vehicle is inclined by a predetermined angle or more and a horizontal state other than the predetermined angle. Immediately after the switch is turned on, when the inclination detecting means detects a non-horizontal state, and when the replenishment detecting means detects replenishment, the instruction value stored in the storage means and the instruction calculated by the calculating means. The difference between the measured value and the indicated value is added to the indicated value stored in the storage means, and the indicated value is used as a target value, and the remaining fuel amount is displayed on the display means based on the target value, and the ignition switch is turned on. From the time till the start of traveling, when the inclination detecting means detects a non-horizontal state, and when the replenishment detecting means detects the presence of replenishment, a difference between successive instruction values calculated by the calculating means is taken. An indication value obtained by adding a difference to a previous indication value is set as a target value, and the remaining fuel amount is displayed on the display means based on a value increased by a fixed value at every first fixed time toward the target value. And for vehicles Fuel level indicator. 20. When the inclination detecting means detects a non-horizontal state from a time when the engine is turned on to a time when the vehicle starts running, it is determined that a predetermined amount of fuel is consumed per unit time. A second calculating means for sequentially subtracting the values to calculate an indication value of the remaining fuel amount; and a case where the vehicle travels a predetermined distance per unit amount when the inclination detecting means detects a non-horizontal state while the vehicle is traveling. And a third calculating means for sequentially subtracting a predetermined value according to a traveling distance from a current instruction value at predetermined time intervals to calculate an instruction value of a remaining fuel amount, wherein the drive control means is configured to switch from an engine ON state to an ON state. Until the start of traveling, when the inclination detecting means detects a non-horizontal state, the remaining fuel amount is displayed on the display means based on the instruction value calculated by the second calculating means, and the vehicle is running. The inclination detecting means 20. The fuel level display device for a vehicle according to claim 19, wherein when the horizontal state is detected, the fuel level is displayed on the display means based on the instruction value calculated by the third calculating means. . 21. A display means for displaying an indicated value, a fuel sensor for detecting a liquid level of fuel in a combustion tank of a vehicle to generate a fuel signal, and receiving a fuel signal from the fuel sensor to receive fuel. First calculation means for calculating an instruction value for indicating the remaining amount; drive control means for controlling the display means to display the remaining fuel amount on the display means; and a vehicle inclined by a predetermined angle or more. A tilt detecting means for detecting a non-horizontal state and other horizontal states, and a predetermined fuel per unit time when the tilt detecting means detects a non-horizontal state during a period from turning on of the engine to start of traveling. A second computing means for sequentially subtracting a predetermined value from a current instruction value every predetermined time assuming that there is consumption to calculate an instruction value of a remaining fuel amount; and, during running of the vehicle, the inclination detecting means sets a non-horizontal state. When detecting, And a third calculating means for sequentially subtracting a predetermined value corresponding to the running distance from a current instruction value at predetermined time intervals to calculate an instruction value of a remaining fuel amount, wherein the driving control means After the ignition switch is turned on, when the inclination detecting means is detecting a horizontal state,
The indication value calculated by the first calculation means is set as a target value, and the remaining fuel amount is displayed on the display means based on a value reduced by a certain value at every second certain time toward the target value,
From the time the engine is turned on until the start of traveling, when the inclination detecting means detects a non-horizontal state, the display unit displays the remaining fuel amount based on the instruction value calculated by the second calculating means, A vehicle that displays the remaining fuel amount on the display unit based on an instruction value calculated by the third calculation unit when the inclination detection unit detects a non-horizontal state during traveling of the vehicle. Fuel remaining amount display device.