JP3251511B2 - Vehicle section time measurement method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle section time measuring method and apparatus for measuring a running time required for a vehicle to travel in a predetermined section.

[0002]

2. Description of the Related Art A vehicle such as an automobile has a vehicle section time measuring device. When the vehicle travels in each predetermined section, the vehicle section time measuring apparatus is required for the vehicle to travel in each predetermined section. The running time is measured.

FIG. 5 shows a conventional vehicle section time measuring device of this kind. FIG. 6 shows a flowchart of the vehicle section time measurement method, and FIG. 7 shows a timing chart of each signal of the vehicle section time measurement device.

In the vehicle section time measuring device shown in FIG. 5, a central processing unit (hereinafter referred to as a CPU) 101 is used.
Inputs an ignition (hereinafter abbreviated as IGN) signal.

When the IGN is turned on (step S111), the counter 103 resets the running time. In this case, the contents of the random access memory (RAM), which is the section time data area, are cleared (step S113). At this time, the display unit 107 displays the running time 0:00, which is the reset value (initial value).

The counter 103 measures the running time of each section of the vehicle from the time when the IGN is turned on.
The counting stops when the GN is turned off. That is, a time counting process is performed (step S11).
5).

Further, the traveling time (section time) counted by the counter 103 is displayed on the display unit 107 (step S117).

In the above description, IGN is ON and IGN is OF
Although the description has been given of the single traveling of the vehicle up to F, for example, when the traveling of the vehicle is performed a plurality of times, the processing of each step shown in FIG. 6 is performed in each traveling. In this case, the data area is cleared each time the IGN is turned on.

Further, as shown in FIG. 7, the timing of each signal is as follows at time t1 after the IGN signal is turned on at time t1.
The rotation speed signal is turned on at 2 and the vehicle speed signal is turned on at time t3.

[0010] The measured value of the traveling time is displayed for each section from the time when IGN is turned on. Further, after the vehicle speed signal is turned off at time t4, the rotation speed signal is turned off at time t5, and the IGN signal is turned off at time t6.

[0011]

However, IGN
Is ON and the section time data area is cleared, and the time is measured. The measured time is not the actual engine drive time, but the IGN ON time. For this reason, the engine drive time cannot be measured accurately,
As a result, there is a problem that the accuracy of the engine driving time is deteriorated.

Further, if the section time data area is cleared when IGN is ON, there is a problem that the previous running time and the like become unknown because there is no special backup data area.

It is an object of the present invention to provide a vehicle section time measuring method and apparatus capable of accurately measuring an engine driving time and obtaining a previous traveling time.

[0014]

The present invention employs the following means in order to solve the above-mentioned problems. The invention of claim 1 is
When the engine speed of the vehicle becomes equal to or higher than a predetermined speed after the ignition is turned on, it is determined that the engine is turned on, and when the engine is determined to be on, the vehicle travels in each predetermined section. The gist of the present invention is to start the measurement of the required travel time and stop the measurement of the travel time when the ignition is turned off, and display the measured travel time of the vehicle.

According to the present invention, it is determined that the engine has been turned on when the engine speed of the vehicle has reached or exceeded a predetermined speed after the ignition has been turned on. The measurement of the travel time required to travel in each of the predetermined sections is started, and when the ignition is turned off, the measurement of the travel time is stopped, and the measured travel time of the vehicle is displayed.

That is, since the time is measured from when the engine is turned on to when the ignition is turned off, the measured time is the time during which the engine was actually driven. Can be.

The gist of the present invention is to reset the last running time of the vehicle measured when it is determined that the engine is turned on.

According to the present invention, the previous running time of the vehicle measured by the time measuring unit is reset when it is determined that the engine is turned on, so that the current running time of the vehicle can be accurately measured. Can be.

The gist of the present invention is to display the last running time of the vehicle during a period when the ignition is on and the engine is off.

According to the present invention, the last running time of the vehicle is displayed during the period when the ignition is on and the engine is off, so that the last running time of the vehicle can be grasped.

According to a fourth aspect of the present invention, there is provided an engine judging section for judging that the engine is turned on when the engine speed of the vehicle becomes equal to or more than a predetermined speed after the ignition is turned on, and judging that the engine is turned on. A time measuring unit that starts measuring a running time required for the vehicle to travel in each predetermined section from time and stops measuring the running time when an ignition is turned off, and the vehicle measured by the time measuring unit. And a display unit for displaying the travel time of the vehicle.

According to the present invention, the engine determination unit determines that the engine has been turned on when the engine rotation speed of the vehicle has reached a predetermined rotation speed or more after the ignition has been turned on, and the time measurement unit has determined that the engine has been turned on. When it is determined that the vehicle has traveled, the vehicle starts measuring the travel time required for traveling in each of the predetermined sections, and stops measuring the travel time when the ignition is turned off. The measured travel time of the vehicle is displayed.

That is, since the time is measured from when the engine is turned on to when the ignition is turned off, the measured time is the time during which the engine was actually driven. Can be.

According to a fifth aspect of the present invention, there is provided a reset unit for resetting the last running time of the vehicle measured by the time measuring unit when it is determined that the engine is turned on.

According to the present invention, the reset section resets the previous running time of the vehicle measured by the time measuring section when it is determined that the engine is turned on.
The current traveling time of the vehicle can be accurately measured.

[0026] In the invention according to claim 6, the display section comprises:
The gist is to display the last running time of the vehicle during the period when the ignition is on and the engine is off.

According to the present invention, the display unit displays the last running time of the vehicle during the period when the ignition is on and the engine is off, so that the last running time of the vehicle can be grasped. Can be.

[0028]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a vehicle section time measuring method and apparatus according to an embodiment of the present invention;

FIG. 1 is a block diagram showing an embodiment of a vehicle section time measuring device according to the present invention. The vehicle section time measuring device shown in FIG. 1 includes a CPU 12 and a display unit 30 connected to the CPU 12 and displaying a running time of each vehicle.

The CPU 12 includes a rotation speed calculation unit 13, a rotation speed determination unit 15, an engine-on flag unit 17, a display reset flag unit 19, a counter 22, a display reset flag unit 19, a counter 21, a data memory 22, and a display memory. 23, and a display processing unit 25.

The rotation speed calculation unit 13 calculates the engine rotation speed based on an engine rotation speed signal sent from a vehicle body (not shown), and outputs the engine rotation speed to the rotation speed determination unit 15 and the display processing unit 25.

The rotational speed judging unit 15 judges whether the engine rotational speed sent from the rotational speed calculating unit 13 is equal to or higher than a predetermined rotational speed. The predetermined engine speed is, for example, 400 rpm.

The engine-on flag section 17 is provided during the period from when the IGN is turned on by the input IGN signal and when the engine speed is determined to be equal to or higher than the predetermined speed to when the IGN is turned off. , Set the ENGON flag for turning on the engine to “1”. In addition, the engine-on flag section 17 sets the ENGON flag to “0” during a period other than the above period.

The engine-on flag section 17 displays an ENGON flag set to "1" and a display reset flag section 19
And outputs the ENGON flag set to “0” to the display processing unit 25. The engine speed determination unit 15 and the engine-on flag unit 17 constitute an engine determination unit.

The display reset flag section 19 constitutes a reset section, and when an ENGON flag set to "1" is input from the engine-on flag section 17, that is, when the engine speed becomes equal to or higher than a predetermined speed. At this time, the count value of the counter 22 is reset, and the REST flag is set to “1” from the time of the reset until the IGN is turned off.

The counter 22 constitutes a time measuring unit,
The measurement of the travel time required for the vehicle to travel in each of the predetermined sections starts when the engine is determined to be on by the ENGON flag set to 1 ", and the measurement of the travel time when the IGN is turned off. To stop.

The data memory 21 stores the running time counted by the counter 22. Display memory 23
Of the travel time counted by the counter 22
The running time immediately before IGN is turned off is stored as backup data (previous running time data).

The display processing section 25 causes the display section 30 to display the running time counted by the counter 22 and the engine speed from the speed calculating section 13 to be displayed.

The display processing unit 25 includes the display memory 2.
The backup data stored in 3 is displayed on the display unit 30 during the period when the IGN is ON and the engine is OFF.

Next, a vehicle section time measuring method realized by the vehicle section time measuring apparatus thus constructed is shown in FIG.
3 and the flowchart of the engine speed process shown in FIG.

First, the engine speed process shown in FIG. 3 is performed. When the engine speed calculation unit 13 calculates the engine speed based on the engine speed signal (step S31), the engine speed determination unit 15 determines whether the engine speed from the engine speed calculation unit 13 is equal to or higher than a predetermined engine speed. (Step S3
3).

Next, the engine-on flag section 17 sets the IG
When it is determined that the engine speed is equal to or higher than the predetermined speed after N is turned on, the ENGON flag is set to “1” during the period from that time until the IGN is turned off (steps S35 and S11). ).

Next, the display processing unit 25 is connected to the rotation speed calculating unit 13.
Is displayed on the display unit 30 of the engine speed from the controller (step S37).

If the engine speed is lower than the predetermined speed, the process of displaying the speed in step S37 is performed without setting the ENGON flag to "1".

Next, the display reset flag section 19 sets the ENGO set to "1" by the engine-on flag section 17.
Input N flag. Then, the display reset flag unit 1
If the reset flag 9 is set to "0" (step S13), the count value of the counter 22 is reset to reset the display of the traveling time on the display unit 30 (step S15).

The display reset flag section 19 sets the REST flag to "" from the time the display is reset (when it is determined that the engine is turned on by the ENGON flag set to "1") until the IGN is turned off. 1 "is set (step S17).

Next, the display reset flag section 19 sets the RES
If the T flag is set to "1", a time counting process is performed (step S19).

Here, the counter 22 starts measuring the traveling time required for the vehicle to travel in each predetermined section from the time of resetting the display, and stops measuring the traveling time when the IGN is turned off.

Further, the display processing unit 25 includes a counter 22
Is displayed on the display unit 30 (step S21).

In the above description, IGN is ON and IGN is OF
Although the description has been given of the single traveling of the vehicle up to F, for example, when the traveling of the vehicle is performed a plurality of times, the processing of each step shown in FIGS. 2 and 3 is performed for each traveling. In this case, every time the engine is turned on,
The data area has been cleared.

As described above, the time is measured from when the engine is turned on to when the IGN is turned off.
Is the time during which the engine was actually driven, not the time during which the was turned on, so that the engine drive time can be accurately grasped.

In the display memory 23, IGN is OF
The running time immediately before F is stored as backup data. For this reason, the display processing unit 25 sets the backup data stored in the display memory 23, that is,
The last running time of the vehicle is displayed on the display unit 30 during the period when the IGN is ON and the engine is OFF, so that the last running time of the vehicle can be grasped.

The present invention is not limited to the above embodiment. In the embodiment, the predetermined rotation speed of the engine is 400 rpm, but is not limited to this rotation speed, and may be another rotation speed.

[0054]

According to the invention of the vehicle section time measuring method,
When the engine speed of the vehicle becomes equal to or higher than a predetermined speed after the ignition is turned on, it is determined that the engine is turned on, and when the engine is determined to be on, the vehicle travels in each predetermined section. Measurement of the required travel time is started, and when the ignition is turned off, the measurement of the travel time is stopped, and the measured travel time of the vehicle is displayed.

That is, since the time is measured from when the engine is turned on to when the ignition is turned off, the measured time is the time during which the engine was actually driven. Can be.

Further, when it is determined that the engine is turned on, the previous running time of the vehicle measured by the time measuring unit is reset, so that the current running time of the vehicle can be accurately measured.

Further, the last running time of the vehicle is displayed during the period when the ignition is on and the engine is off, so that the last running time of the vehicle can be grasped.

According to the invention of the vehicle section time measuring device, the engine determining unit determines that the engine is turned on when the engine speed of the vehicle becomes equal to or higher than a predetermined speed after the ignition is turned on. Starts the measurement of the travel time required for the vehicle to travel in each predetermined section from the time when it is determined that the engine is turned on, and stops the measurement of the travel time when the ignition is turned off. The running time of the vehicle measured by the time measuring unit is displayed.

That is, since the time is measured from when the engine is turned on to when the ignition is turned off, the measured time is the time when the engine was actually driven. Therefore, it is necessary to accurately grasp the engine drive time. Can be.

The reset section resets the last running time of the vehicle measured by the time measuring section when it is determined that the engine is turned on, so that the current running time of the vehicle can be accurately measured. Can be.

Further, the display unit displays the last running time of the vehicle during the period when the ignition is on and the engine is off, so that the last running time of the vehicle can be grasped.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of a vehicle section time measurement device of the present invention.

FIG. 2 is a flowchart illustrating a vehicle section time measuring method according to the present invention.

FIG. 3 is a flowchart of an engine speed process.

FIG. 4 is a timing chart of each signal of the vehicle section time measuring device according to the embodiment.

FIG. 5 is a configuration diagram showing a conventional vehicle section time measuring device.

FIG. 6 is a flowchart showing a conventional vehicle section time measuring method.

FIG. 7 is a timing chart of each signal of the conventional vehicle section time measuring device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 12 CPU 13 rotation speed calculation unit 15 rotation speed determination unit 17 engine on flag unit 19 display reset flag unit 21 counter 22 data memory 23 display memory 25 display processing unit 30 display unit 105 RAM

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G04F 10/00 B60R 16/02 660

Claims (6)

(57) [Claims] An engine is determined to be turned on when an engine speed of the vehicle exceeds a predetermined speed after the ignition is turned on, and when the engine is determined to be turned on, the vehicle is moved to a predetermined section. Measuring the travel time required to travel the vehicle, stopping the measurement of the travel time when the ignition is turned off, and displaying the measured travel time of the vehicle. 2. The vehicle section time measuring method according to claim 1, wherein the previous running time of the vehicle measured when it is determined that the engine is turned on is reset. 3. The vehicle section time measuring method according to claim 1, wherein the last running time of the vehicle is displayed during a period when the ignition is on and the engine is off. 4. An engine judging unit for judging that the engine is turned on when the engine speed of the vehicle becomes equal to or more than a predetermined speed after the ignition is turned on, and A time measuring unit that starts measuring a running time required for traveling in each predetermined section and stops measuring the running time when an ignition is turned off; and displays a running time of the vehicle measured by the time measuring unit. A vehicle section time measuring device, comprising: 5. The vehicle section time measurement according to claim 4, further comprising a reset section for resetting a previous traveling time of the vehicle measured by the time measurement section when it is determined that the engine is turned on. apparatus. 6. The vehicle section according to claim 4, wherein the display unit displays the last running time of the vehicle during a period when the ignition is on and the engine is off. Time measuring device.