KR200185273Y1 - An apparatus for vehicle maintenance - Google Patents

Abstract

The present invention relates to a portable vehicle management device with a built-in car book function so that the alarm can be automatically alarmed about the replacement time of the maintenance items, information storage unit 50 for storing the replacement time and information content for the maintenance items for each vehicle In addition, the keypad 90 for inputting the corresponding data of fuel oil and maintenance items, the data memory 40 for temporarily storing the input data, and the vehicle fuel efficiency and the daily average mileage by fuel input Computation control section 30 that calculates the section cumulative travel distance multiplied by the number of days traveled and the daily average travel distance while performing the automatic calculation and comparing with the exchange point information of the information storage unit 50, and the corresponding maintenance items for the cumulative distance traveled section The display unit 20 on which the contents of the information from the selected information storage unit 50 are displayed on the screen as the initial vehicle marking display 17 changes at the time of replacement; The speaker 80 which automatically generates an alarm alarm with the change of the initial vehicle expression display 17 of the screen display unit 20 when the cumulative driving distance automatically calculated from the fisherman 30 reaches the replacement point of the maintenance item. And a portable pack 10 including a battery 70 for supplying power and a signal oscillator 85 for outputting a locking or unlocking signal for a vehicle door at a predetermined frequency. Characterized in that can be attached to.

Description

Portable vehicle management device with built-in car accounting function

The present invention relates to a portable vehicle management device with a built-in accounting unit function to automatically prevent and manage the replacement point of a vehicle maintenance item. Basically, the vehicle management function that automatically calculates the daily average mileage and fuel economy can be built into a mobile phone that is always carried or can be attached to a vehicle. Built-in car accounting function to facilitate the preventive maintenance of the vehicle by allowing the user to easily check the maintenance time of the corresponding replacement oil and consumable parts by adding the alarm alarm and the change of the vehicle's expression mark automatically through the mobile phone or its own mobile pack. The present invention relates to a portable vehicle management apparatus.

In general, replacement oils such as engine oil and brake oil, and consumable parts such as timing belts and brake linings have a corresponding replacement cycle according to the mileage of the vehicle. Based on this, the maintenance time of the corresponding replacement oil and consumable parts, which are maintenance items, is calculated and replaced.

However, most of the drivers calculate the replacement time by accurately memorizing the engine oil among various maintenance items, but other maintenance items are replaced and maintained at a later point when the vehicle is in poor condition or degraded. And reduced lifespan as well as a risk of accidents.

In particular, inexperienced driver or female driver who lacks common sense of vehicle has a problem that the risk of accident handling in the worst case is inevitably increased due to poor inspection and management of the vehicle.

In addition, even in the case of the driver who normally prepares the car account book, it is very cumbersome to check the car account book contents from time to time, and there is a limit that it is very difficult to check and prevent and manage the overall maintenance items of the car at a glance. Vehicles can be managed using a management program, but in reality it is inconvenient to carry, and the inconvenience of using them is cumbersome and impractical.

Thus, the present invention was developed to accurately manage the vehicle while solving all the inconveniences caused by the conventional vehicle management. The daily average mileage and vehicle fuel economy based on the data inputting the main winder and the mileage during fueling The vehicle management function that can automatically calculate the built-in mobile phone that can be built in or carried on its own mobile pack that can be attached to the vehicle, the corresponding replacement oil and consumable parts by the cumulative sum of the average daily mileage for a certain period of time The purpose of the present invention is to provide a portable vehicle management device with a built-in car control unit function to facilitate the preventive maintenance of the vehicle by automatically checking the maintenance time of the mobile phone or its own mobile pack.

1 is an exemplary view of an initial state of a portable pack of a portable vehicle management apparatus according to the present invention.

Figure 2a is an illustration of the alarm point and the maintenance item check screen replacement time by the vehicle management mobile pack of the present invention.

Figure 2b is an illustration of the maintenance item selection and the corresponding data input screen by the vehicle management portable pack of the present invention.

Figure 3a is a diagram illustrating a corresponding data input screen when fueling by the vehicle management portable pack of the present invention.

Figure 3b is an example of vehicle management year and month statistics screen by the vehicle management portable pack of the present invention.

Figure 3c is an illustration of the maintenance maintenance data inquiry screen by the vehicle management portable pack of the present invention.

Figure 3d is an illustration of the vehicle emergency action content screen by the vehicle management portable pack of the present invention.

4 is a schematic operation circuit diagram of a portable vehicle management apparatus according to the present invention.

5 is a control flow chart of a portable vehicle management apparatus according to the present invention.

Figure 6 is an exemplary mobile phone with a vehicle management function according to the present invention.

Figure 7 is an exemplary state of use attached to a portable vehicle management apparatus of the present invention to a vehicle.

Explanation of symbols on the main parts of the drawings

10: carrying pack 11: oiling display

12: Maintenance display 13: Status display

14: Statistics display 15: Emergency display

16: setting display 17: vehicle marking display

20: screen display unit 30: operation control unit

40: data memory 50: information storage

60: time counter 70: battery

80: speaker 90: keypad

92: Numeric Button 94: Select Button

96: direction button

In order to achieve the above object, the present invention, an information storage unit for storing the time and information of the replacement of the maintenance items for each vehicle, a keypad for inputting the corresponding data of fuel oil and maintenance items and the corresponding data is temporarily The data storage unit calculates the cumulative mileage calculated by multiplying the driving days from the time counter and the daily average mileage by automatically calculating the vehicle fuel economy and the daily average mileage by inputting the corresponding data during fueling. The operation control unit for comparing and controlling the exchange point information and the information content from the information storage unit selected and maintained as the initial vehicle marking display is changed at the time of replacing the maintenance item for the accumulated running distance from the operation control unit are displayed. The screen display unit to be displayed, and the section cumulative traveling distance automatically calculated from the operation control unit When the maintenance point of this maintenance item is reached, a signal is outputted at a certain frequency to the speaker that automatically generates an alarm alarm, the battery supplying power, and the locking or unlocking signal for the vehicle door and the vehicle door. It is configured to include a signal oscillator to be characterized in that it can be detachably attached to the vehicle dashboard.

The screen display unit displays a vehicle-shaped vehicle marking that displays a change in the initial state of a smile and a warning state of a crying state, a fueling indication of a fuel oil selection function, a maintenance indication of a maintenance item selection function, and a corresponding maintenance item at the time of replacement. Function status display, statistics of vehicle management year and month statistics function, display of setting time of replacement of relevant maintenance items by vehicle type, emergency indication of emergency action contents function, and other year, date and current time counted by the time counter It is characterized by being displayed.

The screen display unit is characterized in that the screen is displayed so that the corresponding data about the oiling date, the fueling amount, the main glass, the driving distance according to the selection operation of the fueling display can be input by the keypad.

The screen display unit is characterized in that the screen is displayed so that the corresponding data on the maintenance date, the maintenance amount, the driving distance of the maintenance items to be replaced according to the selection operation of the maintenance display on the keypad.

The keypad includes a numerical button for numerically inputting corresponding data of fuel oil and maintenance items, a direction button and a selection button for moving selection and execution operation of the corresponding function display of the screen display unit, and locking or locking the vehicle door by remote control. Characterized in that consisting of the locking button to release and the locking release button.

In addition, vehicle fuel economy and daily average mileage by the information storage unit that stores the time and information of the maintenance items for each vehicle, the data memory to temporarily store the input data, and the corresponding data input when fueling Is calculated automatically and calculates the section cumulative travel distance multiplied by the section running date from the time counter and the daily average travel distance and compares and controls the exchange time information of the information storage section, and the section cumulative travel distance from the calculation controller. The screen display unit displays information from the selected information storage unit when the initial vehicle expression display is changed at the time of exchange of the corresponding replacement oil and maintenance items, and the section accumulated mileage that is automatically calculated from the operation control unit. When the maintenance item has been replaced, the display will automatically change with the initial vehicle indication. As the vehicle management function including a speaker to generate an alarm alarm is embedded in the mobile phone, the corresponding data of fuel oil and maintenance items can be selected by the button of the mobile phone itself and inputting data.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in detail as follows.

1 is a built-in car control unit function that is a portable vehicle management device that generates an alarm notification as the vehicle expression display 17 of the screen display unit 20 changes every time the replacement oil and consumable parts, which are vehicle maintenance items, according to the present invention. 4 illustrates a normal initial state of the portable pack 10, and FIG. 4 illustrates a schematic operation circuit of the portable pack 10, which is a portable vehicle management apparatus according to the present invention, and FIG. Figure 10 shows the control flow for the data entry of fuel injection and maintenance items.

As shown in the figure, the portable vehicle management apparatus of the present invention is a portable and easy to carry the information storage unit 50, which stores the time and information of the exchange for the maintenance items for each vehicle, and input the corresponding data of fuel oil and maintenance items Accumulated driving from the time counter 60 while the vehicle fuel economy and daily average mileage are automatically calculated by the keypad 90 and the data memory 40 which temporarily stores the corresponding data to be input, and the corresponding data input when fueling. A section from the calculation control section 30 together with a calculation control section 30 that calculates a section cumulative travel distance multiplied by the number of days traveled and a daily average travel distance and compares and controls the exchange point information of the information storage section 50. At the time of replacing the corresponding maintenance item with respect to the accumulated mileage, the initial vehicle expression display 17 is changed to display the information content from the information storage unit 50 which has been selected and maintained. The display unit 20 is configured as a circuit, and when the accumulated distance traveled automatically from the operation control unit 30 reaches the replacement point of the maintenance item, the initial vehicle expression display of the display unit 20 ( 17) Basic configuration includes a speaker 80 for automatically generating an alarm alarm with a change, a battery 70 for supplying power, and a signal oscillator 85 for outputting a locking or unlocking signal for a vehicle door at a predetermined frequency. As a result, the portable pack 10 having the function of the account book.

In particular, the arithmetic and control unit 30 is based on the fueling date, the fueling amount, the main lubricator (fuel flow rate), and the mileage at the time of fueling which is the program contents of the program registration number 97-01-11-3797 registered by the applicant The vehicle fuel economy and daily average mileage are automatically calculated by the corresponding data input to calculate the interval accumulated mileage multiplied by the number of driving days and the daily average mileage from the time counter 60, and the time of exchange of the information storage unit 50. Compare and control the information.

That is, the car accounting unit function of the vehicle management apparatus according to the present invention basically records the oiling date, the fueling amount, the main glass, and the mileage with the keypad 90 while the fuel oil display 11 of the screen display unit is selected when fueling the vehicle. By inputting, the vehicle fuel economy and daily average mileage of the vehicle are calculated and processed, and the date of replacement, maintenance amount, and mileage of the replacement point for the corresponding maintenance item of the vehicle are inputted to the corresponding exchange point for each management item. The data memory 40 is circuit-configured together with the operation control unit 30 and the information storage unit 50 so that the section cumulative driving distance is automatically counted and processed.

The data memory 40 is composed of an electronically erasable and programmable ROM (EEPROM) in which stored data is electrically erased, and various function displays 11, 12, 13, 14, 15, and 16 are displayed on the screen. The screen display unit 20 to be displayed is preferably composed of a liquid crystal device (LCD).

In addition, the time counter 60 automatically counts the corresponding days that have accumulated cumulatively so that the cumulative mileage can be automatically calculated by multiplying the number of days with the average daily mileage, and the corresponding date and current time being counted are displayed on the screen. It is composed of a clock (Clock) that the time is counted by the periodic signal generation so as to be displayed on the display unit 20, and the battery 70, which is a power supply source of the component circuit is used a conventional DC battery of a lithium battery or nickel cadmium battery.

In addition, the keypad 90 for inputting the corresponding data for the time of fuel refueling and the replacement of the maintenance item is basically composed of a numeric button 92 for numerically inputting the corresponding data of fuel refueling and the maintenance item. A direction button 96 and a selection button 94 for moving, selecting and executing the corresponding function display 11, 12, 13, 14, 15 and 16 of the screen display unit 20 are configured. It consists of a locking button 97 and a locking release button 98 for remotely controlling a vehicle door (not shown) to lock or unlock.

The locking button 97 and the locking release button 98 of the keypad are connected to the signal oscillation unit 85 and are exclusively connected to the electric system of the vehicle while the locking or locking release signal commanded by the signal is output at a predetermined frequency. Remotely communicate with (not shown) to automatically lock or unlock the vehicle door.

In addition, the screen display unit 20 that automatically displays the vehicle state is based on the vehicle-shaped vehicle expression display 17 in which the initial state of the laughing state and the warning state of the crying state are displayed on the basis of a fueling display for selecting fuel oil. (11), maintenance indication to select maintenance items to be exchanged and repaired (12), status indication to confirm the corresponding maintenance items at the time of replacement (13), statistics to search and confirm statistics on the month and month statistics of fuel oiling and maintenance and repaired vehicles Display the date and time of the counter, together with the display (14), the setting display (16) for inputting and modifying the replacement time of the corresponding maintenance item for each vehicle type, and the emergency display (15) for checking the action contents in case of an emergency. It is composed.

On the other hand, Figure 2a is a state display of the display unit 20 according to the warning alarm generation and vehicle expression display change during the maintenance item replacement cycle of the vehicle by the portable vehicle management portable pack 10 with the built-in car book function of the present invention (13) ) Is an example of a confirmation screen for the corresponding maintenance items at the time of replacement by operating the selection button 94 of the keypad 90 in the lit state, Figure 2b is a screen display unit by the vehicle management portable pack 10 of the present invention On the maintenance display 12 of 20, the selector button 94 of the keypad 90 is operated to display an input screen for inputting the maintenance date, maintenance amount and mileage of the corresponding maintenance item to be replaced, such as a lining pad. It is illustrated.

And, Figure 3a is to operate the fueling display 11 of the screen display unit during the fuel injection of the vehicle by the portable vehicle management portable pack 10 of the present invention can input the oiling date and the fueling amount and the oiling distance and mileage Figure 3b is an example of the input screen, Figure 3b illustrates the vehicle management cost and vehicle fuel economy and fueling amount of fuel by the vehicle management mobile pack 10 of the present invention, Figure 3c is a vehicle of the present invention An example of an inquiry screen for maintenance history and refueling data by the management portable pack 10 is illustrated.

In addition, Figure 3d is a portable vehicle management device of the present invention using the portable pack 10, when the emergency situation of the vehicle by selecting the emergency display (15) of the display unit to display the inquiry screen of the emergency action for the emergency situation 5 is a schematic control flow for performing maintenance by inputting corresponding data for data input and replacement of maintenance items at the time of fuel replenishment using the portable vehicle management apparatus of the present invention.

First, in the case of fuel injection, as shown in FIG. 3A, when the fuel oil display 11 is selected, the select button 94 of the keypad 90 is pressed to operate the corresponding fueling date, fueling amount, main fuel, and distance traveled. If the input is performed, the operation can be calculated by comparing the data with the corresponding data of the previous fueling time recorded and stored in the information storage unit, the interval cumulative driving distance for the daily average running distance and the elapsed days can be automatically calculated.

That is, when the driver's seat uses the keypad 90 of the portable pack management device 10, which is a portable vehicle management device, to input corresponding data at the time of fuel injection, the vehicle fuel economy is automatically calculated and at the time of exchange for each maintenance item stored in the data. This determination can be applied, and whenever the maintenance item at the time of replacement is judged and checked, the vehicle expression display 17 of the screen display unit changes to the state of crying together with the generation of the alarm alarm through the speaker 80 of the self.

On the other hand, the daily average mileage of the vehicle can calculate the average daily mileage through the cumulative mileage and the elapsed days, for example, three days after fueling 20ℓ fuel at 1,000km mileage on October 1, 1999 When fueling 15ℓ fuel at 1,300km on October 4, 1999, the daily average mileage would be 100km divided by 3, the cumulative number of days over the 4 days, resulting in fuel injection. As the input data increases, the data accuracy of daily average mileage and vehicle fuel economy increases.

In addition, the vehicle fuel economy is a value obtained by dividing the mileage accumulated mileage by the zonal cumulative main winder (oil flow rate), and the measured vehicle fuel economy may vary depending on the driver's habits and driving frequency, but as the data input continues, the average fuel economy Will increase the accuracy.

In addition, the exchange point driving distance for each maintenance item is recorded and stored in the information storage unit 50, and the corresponding exchange point can be automatically calculated each time the input data is updated, and the data input is performed at the corresponding exchange point. When added, the alarm alarm generation and crying vehicle expression display 17 of the exchange point is automatically returned to the smile state, and the segment accumulation counter for the corresponding exchange point is initialized.

On the other hand, if the current mileage is less than 1,000km, the initial setting is not necessary for new cars, but for used cars from 1,000km or more, the current average mileage and the elapsed days are set with the current mileage set to the initial state. The vehicle's expression display 17, which is in a crying state, is displayed on the screen while automatically calculating the cumulative mileage for the section and determining and confirming the time of replacement of the corresponding maintenance item while generating an alarm alarm.

In addition, as shown in FIG. 2A, the status display 13 of the screen display unit is selected at an exchange point at which an alarm alarm is generated from the speaker 80 and the vehicle expression display 17 of the screen display unit 20 changes to a crying state. When it is operated, the judgment contents of the corresponding maintenance item at the time of replacement is displayed on the screen, and as shown in FIG. 2B, the maintenance indication 12 of the display unit is selected and operated to perform the maintenance date, maintenance amount, and mileage for the corresponding maintenance item. When the data is inputted, the warning alarm for the time of exchange is released and the vehicle expression display 17 returns to the normal state with a smile.

In addition, as shown in FIGS. 3B and 3C, the statistical display 14 of the display unit may be selectively operated to display the maintenance history and the fueling data together with the year and month statistical data on the vehicle fuel consumption and fueling amount for vehicle management. In addition, as shown in FIG. 3D, the emergency display 15 of the screen display unit may be selectively operated in an emergency situation such as a vehicle stop or a sudden accident to conveniently respond to an accident situation by screening the corresponding emergency measures.

In addition, as shown in FIG. 7, the portable pack 10, which is a portable vehicle management apparatus of the present invention, may be conveniently used while driving in a state in which the portable pack 10 is simply attached to the vehicle dashboard 110. In this case, the portable pack 10 may be used. It can be detachably attached to the vehicle dash board 110 using a permanent magnet, or can be easily detached by a double-sided tape or other fitting method, such as a typical vehicle accessories.

In addition, the portable vehicle management apparatus of the present invention can be used as a remote control function of the vehicle door by using the locking button 97 and the unlocking button 98 of the keypad 90 in addition to the car account book function, that is, a separate remote starter Selecting and operating the locking button 97 or the locking release button 98, which are self-configured without the use of a view, outputs a signal at a predetermined frequency by the signal oscillator 85 and is connected to an electric system of the vehicle (shown in the drawing). The vehicle door can be automatically locked or unlocked as it is signaled.

On the other hand, as shown in Figure 6 may be used by circuit configuration of the cell phone book function of the portable vehicle management device of the present invention to the mobile phone 100 that is always portable, in this case, the data storage unit 50, data of the car book function circuit While adding the functional circuits such as the memory 40, the operation control unit 30, and the signal generator 85 to the functional circuits of the mobile phone 100, including the screen display unit and the keypad 90, the time counter 60, the battery ( 70), the additional configuration such as the speaker 80 may be used as a portable vehicle management device with a built-in car book function using the configuration screen 20 and the button 102 of the mobile phone 100 itself.

In addition, it is to be understood that the above-described embodiment can be implemented in various ways without departing from the principle of operation of the present invention as a preferred embodiment for facilitating the explanation of the principle of operation of the present invention, in particular the user by hand The mileage that is automatically countered to the instrument panel of the vehicle dashboard 110 by wheel rotation without inputting directly is a portable pack (ECU) of the vehicle (Engine control unit) instead of data input via the numeric keypad 92 of the keypad 90. 10) can be wired or wireless signal connection to reduce the hassle of entering the mileage data every time fuel is refueled.

In addition, the speaker 90, which generates an alarm alarm at each time of replacement of the maintenance item, enables not only the alarm alarm at the time of exchange but also the corresponding alarm contents to be broadcast so that the two-dimensional display of the character through the screen display unit 20 can be performed. It is desirable to be able to provide a more advanced three-dimensional auditory effect than the visual effect, and it should also be understood that it belongs to the scope of the present invention to a technical level that can be changed based on the working principle of the present invention. something to do.

As described above, according to the portable vehicle management apparatus according to the present invention, the daily average mileage and the vehicle as basic data of the degree of inputting the main vitreous and the mileage when fueling is provided through the car control function built into the mobile phone or its own mobile phone. Fuel economy can be calculated automatically, and each maintenance item with a different point of exchange can be accurately identified through alarm alarms and vehicle mark indications. It is possible to structurally prevent the inconvenience of dealing with accidents in the worst case by the minor circumstance of the vehicle management by replacing or performing maintenance on the corresponding maintenance item that the exchange point is accurately and automatically checked, without the need for the troublesome check.

In addition, through the basic data input at the time of fuel injection, it is easy to check and check the vehicle fuel efficiency and fueling data as well as the vehicle management maintenance history for various maintenance items, and it is easy to check the vehicle maintenance through accurate vehicle management while driving incorrectly. It is expected to reduce the waste of habits, and furthermore, to prevent structural accidents caused by missing the correct time of replacement oil and consumable parts.

Claims (6)

Information storage unit 50 for storing the time and information of replacement for the maintenance items for each vehicle, keypad 90 for inputting the corresponding data of fuel oil and maintenance items and data memory for temporarily storing the input data ( 40) and the fuel storage unit and the daily average mileage are automatically calculated by inputting the corresponding data at the time of refueling, and the information storage unit calculates the accumulated cumulative mileage multiplied by the number of driving days from the time counter 60 and the daily average mileage. The initial vehicle expression display 17 is changed at the time of replacing the operation control unit 30 for comparing and controlling the exchange time information of 50 and the corresponding maintenance item for the cumulative mileage distance from the operation control unit 30. The screen display unit 20 on which the information content from the selected information storage unit 50 is displayed on the screen, and the section cumulative traveling distance that is automatically calculated from the operation control unit 30 are changed between the maintenance items. When the time is reached, locking or unlocking of the speaker 80 which automatically generates an alarm alarm with the change of the initial vehicle expression display 17 of the screen display unit 20, the battery 70 and the vehicle door to be supplied. Portable vehicle management device with a built-in car control unit, characterized in that the portable pack 10 comprising a signal oscillation unit 85 for outputting a signal at a predetermined frequency can be detachably attached to the vehicle dashboard (110) . According to claim 1, wherein the screen display unit 20 is a fuel oil display 11 of the fuel oil fuel selection function with the vehicle-shaped vehicle expression display 17 of the initial state of the laughing state and the warning state of the crying state is displayed Maintenance display of the maintenance item selection function (12), status display of the corresponding maintenance item confirmation function (13) at the time of replacement, statistical display of the vehicle management year and month statistics function (14), and setting display of the corresponding maintenance item setting time setting function by vehicle type ( 16) and the emergency indication (15) of the emergency action contents function, and the vehicle management device with a built-in car accounting unit, characterized in that the other year, the date and the current time counted by the time counter 60 is displayed on the screen. According to claim 1 or 2, The screen display unit 20 according to the selection operation of the fueling display 11, the corresponding data on the fueling date, fueling amount, the main glass, the driving distance to the keypad 90 Portable vehicle management device with a built-in car book, characterized in that the screen is displayed so that you can input. The keypad 90 according to claim 1 or 2, wherein the screen display unit 20 displays corresponding data on a maintenance date, a maintenance amount, and a mileage of a maintenance item to be exchanged according to a selection operation of the maintenance display 12. Portable vehicle management device with a built-in car book, characterized in that the screen is displayed so that you can enter. The keypad 90 is provided with a numerical value button 92 for numerically inputting corresponding data of fuel oil and maintenance items, and corresponding function displays 11, 12, 13 of the screen display unit 20. (14) (15) and (16), together with the direction button 96 and the selection button 94 for moving selection and execution operation, the locking button 97 and the unlocking button for remotely controlling or unlocking the vehicle door. Portable vehicle management apparatus with a built-in car book function, characterized in that consisting of (98). Vehicle fuel consumption and fuel consumption by the information storage unit 50, which stores the time and information of the replacement for the maintenance items for each vehicle, the data memory 40 for temporarily storing the corresponding input data, and the corresponding data input at the time of fueling Computation control unit 30 for calculating the cumulative interval travel distance multiplied by the number of days traveled from the time counter 60 and the daily average travel distance while the daily average travel distance is automatically calculated and compared with the exchange time information of the information storage unit 50 And information content from the information storage unit 50 which has been selected and maintained as the initial vehicle marking display 17 is changed at the time of exchange of the corresponding exchange oil and maintenance items for the section accumulated travel distance from the operation control unit 30. The initial vehicle table of the screen display unit 20 when the screen display unit 20 to be displayed on the screen and the section cumulative traveling distance which is automatically calculated from the operation control unit 30 reach the replacement point of the maintenance item. The vehicle management function including the speaker 80 that automatically generates an alarm alarm with the change of the display 17 is embedded in the mobile phone 100, and the corresponding data of fuel oil and maintenance items is displayed on the button 102 of the mobile phone 100 itself. Portable vehicle management device with a built-in subsidiary function, characterized in that the corresponding operation can be selected and input data.