JPH0465984B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vehicle measuring device that detects various driving information of a vehicle over time and prints the detected information as a record.

[Prior art and its problems] There are cases in which the rate at which various driving information in a vehicle, such as driving speed, engine rotational speed, and engine temperature, change over a short period of time is measured and engine tuning and development are performed based on this. be.

For example, during driving practice before a car race, when driving around a corner, changes in engine speed after a gear change are detected and adjustments are made as needed to prevent engine revving, etc., in order to optimize the engine for the actual race. Tuning to maintain the condition,
There is a need to improve the driver's skills by detecting the driving speed per second while driving in a predetermined section.

However, the detection of changes in engine speed and driving speed per second often relies on the memory and intuition of the driver when he or she actually looks at the meter, and the amount of data collected is limited because the driver is also busy operating the steering wheel while driving. However, there was a problem in that there were limits to this, and it was not possible to quantitatively detect changes in travel information in a predetermined section.

The present invention has been made based on the above-mentioned circumstances, and is capable of detecting and storing temporal changes in various driving information of a vehicle within a predetermined period of time through simple operations by the driver, and printing out this driving information to keep it as a record. The purpose is to provide a vehicle measuring device that can later analyze accurate vehicle data, and furthermore, by giving priority to printing even if the fixed data in the storage unit is canceled during printing. , the purpose is to prevent data loss due to a release operation during printing.

[Means for Solving the Problems] The present invention includes a sensor section that detects vehicle running information such as vehicle speed and engine rotation speed, a processing circuit section that obtains running data at predetermined intervals from the output of this sensor section, It includes a storage unit that sequentially stores this driving data, a lock command unit that outputs a lock signal to the processing circuit unit to fix and hold the driving data in the storage unit by manual operation by the driver, and a lock point in the storage unit. a printer that prints running data stored within a predetermined period of time; a printer control unit that causes the printer to print running data stored in the storage unit according to input conditions from the processing circuit unit; and a lock release section that outputs a signal to stop the lock signal or a release signal so as to release the locking of data in the storage section, and the processing circuit section is configured to lock the lock signal at a predetermined time point including a lock point in the storage section by inputting the lock signal. It is configured to memorize and fix travel data within a time, release the memory fixing operation by inputting a signal to release the data fixation, and disable the fixation release signal during printer printing operation in the printer control unit. This is what I did.

[Function] With the above configuration, changes in driving data corresponding to vehicle driving information are sequentially stored, and when a lock signal is output by manual operation by the driver, the data storage operation in the storage section is restricted. The driving data stored within a predetermined period of time including the lock point is fixedly held in the storage section, and these data can be printed out using a printer at will. However, even if the lock signal is released during printing, the lock signal The cancellation is invalidated and printing continues.

[Embodiments of the Invention] FIG. 1 shows a block diagram of the device of the present invention, and 12
is a vehicle speed sensor unit that detects vehicle travel information, such as travel speed, and generates repetitive pulses with a frequency proportional to the travel speed. Reference numeral 14 denotes a processing circuit section that counts these repetitive pulses and updates vehicle speed data one after another at a predetermined clock cycle, and this vehicle speed data is displayed on a display section 16. Further, this updated vehicle speed data is sequentially outputted to and stored in a storage section 18 consisting of a shift register, RAM, etc. that stores a predetermined number of latest vehicle speed data.

Reference numeral 20 denotes a lock command unit that stops the supply of vehicle speed data that is sequentially output from the processing circuit unit 14 to the storage unit 18, and includes a lock switch unit 22 and a lock switch unit installed at a position where the driver can easily operate the vehicle while driving. The lock detection section 24 outputs a lock signal generated by the operation of the lock switch section 22 to the processing circuit section 14, and the lock switch section 2
2, the output of vehicle speed data from the processing circuit section 14 to the storage section 18 is stopped after a predetermined period of time has elapsed. Necessary vehicle speed data within a predetermined period of time is fixedly held in the storage unit 18 with the lock time as a reference point.

Reference numeral 26 denotes a timekeeping section, for example, a clock installed in the vehicle can be used; however, the processing circuit section 14 provides timekeeping data, and this timekeeping data is stored in the storage section 18 in correspondence with vehicle speed data. be done. Therefore, the timing data and the vehicle speed data are stored in a one-to-one correspondence in the storage unit 18;
Only the vehicle speed data plotted over time is stored, so there is no problem in understanding driving information.

Reference numeral 28 denotes a printer control unit, and by operating a print switch unit 30 attached to the vehicle, the printer 32 prints the vehicle speed data and the corresponding time stored in the storage unit 18 within a predetermined time. . In addition, the printer control unit 28
If the storage unit 18 contains several types of data such as engine rotation speed data in addition to vehicle speed data,
It is possible to select arbitrary data or to output data after arithmetic processing to the printer 32.
Such operations can be achieved by providing an externally operable keyboard like the print switch section 30.

Reference numeral 34 denotes a lock release section that releases the lock signal from the lock command section 20 and outputs new vehicle speed data counted by the processing circuit section 14 to the storage section 18 again. As an operation switch for this lock release section 34, a reset switch section 36 may be provided separately from the lock switch section 22, as shown in the vehicle meter in FIG. It is also possible to use a type of switch that, when pressed, outputs a lock signal, and when pressed a second time, releases the lock signal. Note that even if the lock release section 34 is operated while data is being printed by the printer 32, the processing circuit 14 is configured to invalidate this operation.

Incidentally, FIG. 2 shows an embodiment of a vehicle meter incorporating the device of the present invention, where 40 is a printed sheet and 42 is a paper feed switch for this printed sheet.

Next, the operation of the apparatus of the present invention having the above structure will be explained based on the flowchart shown in FIG.

As the vehicle travels, repetitive pulses from the vehicle speed sensor section 12 proportional to the traveling speed are sent to the processing circuit section 14.
The vehicle speed data is counted and updated sequentially at a predetermined clock cycle, is digitally displayed on the display section 16, and is stored in the storage section 18 together with the clock data from the clock section 26. The storage unit 18 stores the vehicle speed data and time measurement data inputted at each predetermined clock period in pairs while sequentially shifting them, and always retains data within a certain predetermined period of time. While the vehicle is running, when the driver reaches the location where he or she wants to collect information, the lock switch section 22 in Figure 2 is activated.
When the lock signal is operated, this lock signal is transmitted to the processing circuit section 14.
is input. When the predetermined time T has elapsed after the input of the lock signal, the processing circuit section 14 stops transferring data to the storage section 18, and the data in the storage section 18 is fixed. The storage section 18 holds data for a total of 2T hours within a predetermined period of time based on the lock time, for example, T hours after the input of the lock signal and T hours before the input of the lock signal. In this way, retaining the data before and after the input of the lock signal has the advantage that changes in the driving information can be detected before and after the time point at which the driving information is desired to be detected. Then, by operating the print switch section 30 after running, a print signal is given to the printer control section 28, and the data held in the storage section 18 is printed on the printer 32.

FIG. 3 shows one display form of a print sheet 40 to be printed, and this sheet 40 shows the time when the lock switch section 22 was operated (10:11 AM:
20), the time within T time before and after it, and the corresponding vehicle speed are printed. In the print display format shown here, the time and vehicle speed are paired, and when such time data is not needed, the storage unit 18 simply stores only the driving data at predetermined time intervals, and for example, only the locked time is displayed. What is necessary is to adopt a form that does this.

By the way, when the lock signal is transferred to the processing circuit section 14, the processing circuit section 14 stops outputting new data to the storage section 18, and the data necessary to be printed is fixedly held in the storage section 18. ing. Then, in order to store new data such as after printing is completed, the lock signal is released within the processing circuit section 14 by operating the lock release section 34, and the new data is sequentially output to the storage section 18. However, if the lock release section 34 is operated by mistake during printing, the lock signal is released and irrelevant data is transferred from the processing circuit section 14 to the storage section 18.
Necessary data that should be output to and printed may be cleared instead. For this reason, the processing circuit section 14 determines whether or not the lock signal is released during printing, and if the lock release section 34 is not operated, printing is terminated as is, and then the lock release section 34 is operated. The new data is output to the storage unit 18 and the previous data is cleared. On the other hand, if the lock release unit 34 is operated during printing,
The processing circuit section 14 gives priority to printing and outputs new data to the storage section 18 after printing is completed. Furthermore, the fourth
As shown by the dotted line in the figure, the lock release unit 3 is locked during printing.
Even if 4 is operated, this operation can be completely invalidated so that new data will not be output to the storage section 18 unless the lock release section 34 is operated again even after printing is completed.

In this way, even if the lock release unit 34 is operated by mistake while necessary data is being printed, printing continues as is, and loss of valuable data can be prevented. In addition, by operating the lock switch section 22 when you want to detect driving information, you can obtain driving information for a predetermined period of time before and after this operation, and record changes in the necessary driving information over time to enable thorough consideration. Therefore, it can be used to tune the vehicle before the race and improve the driving technique of the driver. Furthermore, in order to obtain such driving information, the driver only needs to operate the lock switch section 22 once while the vehicle is traveling, so that the driver can concentrate on driving.

Although one embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment and includes various modifications.

For example, in the embodiment described above, when a lock release operation is performed by the lock release unit 34, the lock command unit 20
As a result, the lock signal from the lock detection section 24 in the storage section 1 is stopped by the processing circuit section 14.
Although the data lock of 8 is released, the release signal of the lock release unit 34 may be directly taken into the processing circuit unit 14, and the data lock operation in the processing circuit unit 14 may be released by inputting the release signal. good. Further, in the above embodiment, only one vehicle speed sensor is shown as a sensor section for detecting driving information, but a single sensor for engine rotation speed, temperature, etc. or a combination of a plurality of sensors can be used. In this case, the printer control section 28 A configuration may also be adopted in which a travel information selection switch is provided to cause the printer 32 to print the necessary travel information. Also, this printer 3
2 may be built into the vehicle meter as shown in FIG. 2, or may be connected to a separate printer. In addition to being installed on the target vehicle for measurement, this device can also be installed on a companion vehicle, and by causing the companion vehicle to travel simultaneously with the target vehicle, it is possible to record, for example, temporal changes in vehicle speed. In this way, if this device is installed in a companion vehicle, it can measure the running conditions of various vehicles on public roads, etc., and is also effective in monitoring the running of the target vehicle.

[Effects of the Invention] As described in detail above, according to the present invention, driving information and the time at which it was detected can be printed out in a table format within an arbitrary predetermined period of time by a simple operation by the driver, and can be printed out during printing. Even if an operation is performed to clear the driving information stored in the machine, printing is prioritized, so changes in driving information over time are kept as a quantitative record and sufficient data analysis is performed.
In addition to improving engine tuning and driver driving skills, it also helps clear the memory even if you accidentally clear the memory during printing.
Printing continues with this operation disabled, preventing loss of valuable data.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention;
FIG. 2 is a front view of a vehicle meter using this device, FIG. 3 is a front view showing one display form of a printed sheet, and FIG. 4 is a flow chart. 12...Vehicle speed sensor section, 14...Processing circuit section,
18...Storage unit, 20...Lock command unit, 26...
...Timer section, 32...Printer, 28...Printer control section, 34...Lock release section.

Claims (1)

[Claims] 1. A sensor section that detects vehicle running information such as vehicle speed and engine rotation speed, a processing circuit section that obtains running data at predetermined intervals from the output of this sensor section, a storage section that sequentially stores this running data, and a driver. a lock command unit that outputs a lock signal to the processing circuit unit to fix and hold the running data in the storage unit by manual operation, and prints the running data stored within a predetermined time period including the lock time in the storage unit. a printer control unit that causes the printer to print the running data in the storage unit according to input conditions from the processing circuit unit, etc.;
and a lock release section that outputs a signal for stopping the lock signal or a release signal so as to release data fixation in the storage section due to the lock operation, and the processing circuit section unlocks the lock in the storage section by inputting the lock signal. Driving data within a predetermined time period including a time point is fixed in memory, and the memory fixing operation is canceled by inputting a signal for canceling the data fixation, and the fixing release signal is invalidated during printer printing operation in the printer control unit. A vehicle measuring device characterized in that it is configured to.