JPS61126417A - Measuring instrument for vehicle - Google Patents

Abstract

PURPOSE:To analyze data accurately by storing in order driving data every prescribed period from the detecting output of driving information of every kind and holding the data fixedly with the manual operation and printing the driving data within a prescribed time including a point of its lock time. CONSTITUTION:A pulse from a vehicle velocity sensor part 12 is counted by a processing circuit part 14 and renewed with the prescribed period and stored along with timing data of a timing part 26 in a storage part 18 and the manual operation of a lock switch part 22 is detected by a lock detecting part 24 to stop the output to the storage part 18 from the circuit part 14. Then, the data within the prescribed time are held fixedly in the storage part 18 making its lock time a reference point and the vehicle data within the prescribed time of the storage part 18 and the times corresponding to these data are printed in a printer 32 via a printer control part 28 by operating a print switch part 30.

Description

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

[Conventional technology and its problems] Various running information on the vehicle, such as running speed.

There are cases in which the rate at which engine rotational speed, engine humidity, etc. change over a short period of time is measured, and engine tuning and development is performed based on this.

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. , it is necessary to improve the driver's technique by tuning the vehicle to meet the current conditions, and by detecting the driving speed per second when 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 is a problem in that there are limits to this, and it is not possible to quantitatively detect changes in travel information in a predetermined section.

The present invention has been made based on the above circumstances, and detects and stores temporal changes in various driving information of a vehicle within a predetermined period of time through manual operations by the driver, and also prints out this driving information to keep it as a record. Accordingly, the object of the present invention is to provide a vehicle measuring device that can later analyze accurate vehicle data.

[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, a timekeeping unit that outputs timed data to the processing circuit unit; a storage unit that sequentially stores driving data detected at time intervals corresponding to the timed data; and storage of driving data in the storage unit by manual operation by the driver. Consisting of a lock command section that outputs a lock signal that limits operations and stores and fixes data generated within a predetermined time period, and a printer that prints stored data that occurs within a predetermined time period including the lock point in the storage section. This is a vehicle measurement device.

[Function] With the above configuration, changes in driving data corresponding to the driving information of the vehicle are stored sequentially, and when a lock signal is output by manual operation by the driver, the data storage operation in the storage section is restricted, and the storage is stopped. Travel data stored within a predetermined period of time including the time of locking is fixedly held in the unit, and these data can be printed out using a printer as desired.

[Embodiments of the Invention] FIG. 1 shows a block diagram of an apparatus according to the present invention, in which numeral 12 is a vehicle speed sensor section for detecting running information of the vehicle, such as running speed, and generates repetitive pulses with a frequency proportional to the running speed. 1
Reference numeral 4 denotes a processing circuit unit that counts these repeated 2 4 - pulses and updates vehicle speed data sequentially at a predetermined clock cycle, and this vehicle speed data is displayed on the display unit 16. Further, this updated vehicle speed monitor is sequentially outputted to and stored in the storage unit 18, which is comprised of a shift register, RAM, etc., and 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 22 installed at a position that is easy for the driver to operate while driving. It is composed of a lock detection section 24 that outputs a lock signal to the processing circuit section 14 by operating the lock switch section 22. By operating the lock switch section 22, the lock signal is output from the processing circuit section 14 to the storage section 18 after a predetermined period of time has elapsed. Output of vehicle speed data is stopped. Necessary vehicle speed data within a predetermined period of time is fixedly held in the storage unit 18 with the time of locking as a reference point.

Reference numeral 2G is a timekeeping section, which can use a clock installed in the vehicle, for example, and provides timekeeping data to the processing circuit section 14, and this timekeeping data is stored in the storage section 18 in correspondence with the vehicle speed data. be done. Therefore, storage unit 1
Timing data and vehicle speed data are stored in 8 in a one-to-one correspondence, but there is no problem in understanding driving information even if only the vehicle speed data plotted over time is stored.

28 is 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. . still,
When the storage unit 18 includes several types of data such as engine rotation speed data in addition to vehicle speed data, the printer control unit 28 selects any data or sends the processed data to the printer 32. It can be output. Such operations can be achieved by providing an externally operable keyboard like the print switch unit 30.

FIG. 2 shows an embodiment of a vehicle meter incorporating the device of the present invention, where 40 is a printing sheet and 42 is a paper feed switch for the printing sheet 1.

Next, the operation of the apparatus of the present invention having the above structure will be explained based on flowcharts 1 to 1 of FIG.

As the vehicle travels, repetitive pulses from the vehicle speed sensor section 12 that are proportional to the traveling speed are digitized by the processing circuit section 14 to become vehicle speed data that is sequentially updated at a predetermined clock cycle.
It is digitally displayed on the display section 16, and the clock section 26
The data is stored in the storage unit 18 together with the clock data from.

The storage unit 18 stores the vehicle speed data and time measurement data inputted at each predetermined clock cycle in pairs while sequentially shifting them, and always retains data within a certain predetermined time period. When the driver operates the lock switch section 22 shown in FIG. 2 when the driver reaches a place where he wants to collect information while the vehicle is running, this lock signal is input to the processing circuit section 14.

When a predetermined period of time has elapsed after the lock signal was input, 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 unit 18 holds data for a predetermined period of time based on the time of locking, for example, a total of 2T hours, including T hours after input of the lock signal and time before 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. 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 unit 22 was operated (AMlo: 11:20), the time within 1 hour before and after that time, and The corresponding vehicle speed will be printed. In the print display format shown here, the time and vehicle speed are paired, and when such timing data is not required, the storage unit 18 simply stores only the running data at predetermined time intervals, for example, only the locked time is stored. What is necessary is to adopt a format in which the information is stored and displayed.

In this way, by operating the lock switch unit 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 keep a record of changes in the necessary driving information over time. This allows for consideration, which can be useful for tuning the vehicle before a race and improving the driver's driving skills. Further, in order to obtain such driving information, the driver only needs to operate the lock switch section 22 once while driving, so he 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, only one vehicle speed sensor was shown as a sensor unit for detecting driving information, but the engine speed,
A single sensor such as a temperature sensor or a combination of multiple sensors can be used, in which case,
The printer control unit 28 may be provided with a travel information selection switch to cause the printer 32 to print the necessary travel information. Further, the printer 32 may be built into the vehicle meter as shown in FIG. 2, or may be configured to be connected to a separate printer. In addition to being installed on the target vehicle to be measured, 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, by installing this device in a companion vehicle, it is possible to measure driving information of various vehicles on public roads, etc., and it is also effective in monitoring the driving of the target vehicle.

[Effects of the Invention] As detailed above, according to the present invention, the driving information and the time at which it was detected within any predetermined time can be printed out as a table by a simple operation by the driver. Keeping a quantitative record of temporal changes in information =
10 - By performing sufficient data analysis, it becomes possible to tune the engine and improve the driving technique of the driver.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an 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 block diagram of an embodiment of the present invention. It is a flowchart.

Claims (1)

[Scope of Claims] A sensor section that detects vehicle running information such as vehicle speed and engine speed, a processing circuit section that obtains running data at predetermined intervals from the output of the sensor section, and sequentially stores this running data. a storage unit, a lock command unit that outputs a lock signal to fix and hold the driving data in the storage unit by manual operation by a driver, and prints the driving data stored in the storage unit within a predetermined time period including the time of locking. A vehicle measuring device characterized by comprising a printer for printing.