JP5142762B2 - Vehicle maintenance support device - Google Patents

Description

  The present invention relates to a vehicle maintenance support device, and more particularly to a vehicle maintenance support device suitable for supporting maintenance of a host vehicle.

  2. Description of the Related Art Conventionally, in-vehicle navigation devices store a maintenance cycle for periodically performing maintenance of the host vehicle such as oil change, and guide the user for maintenance at each stored maintenance cycle. Depending on the situation, there was one with a function to support maintenance of the own vehicle.

  As a maintenance guide by this type of function, for example, a message indicating that a vehicle part to be maintained should be replaced, replenished or inspected is displayed on a display in the vehicle.

  As the maintenance cycle, the distance that the host vehicle should travel (required travel distance) and the time that should elapse (required elapsed time) from one to the next maintenance is used. In many cases, the maintenance cycle is set in consideration of the product life of vehicle parts (for example, engine oil) to be maintained.

  In such a function that supports maintenance, the mileage and elapsed time of the host vehicle after the latest maintenance is cumulatively measured, and the measurement result of the mileage and elapsed time has reached the maintenance cycle. In this case, the maintenance guidance is provided to assist the user in performing maintenance of the host vehicle at a suitable timing.

JP 2006-21570 A

  However, as a use mode of the own vehicle, the user does not always perform the maintenance after the guidance for the maintenance is performed, and may perform the maintenance without waiting for such guidance.

  Here, as a first example, consider a case where a required travel distance of 5000 km is set and stored as a maintenance cycle for engine oil.

  In this case, for example, at the point where the travel distance of the host vehicle from the gas station A where the latest oil change for engine oil was performed is 4900 km, the host vehicle is refueling at the point of the gas station B (same as A When entering, there is a good possibility that the user will perform a new oil change at the gas station B based on his / her own judgment based on the distance traveled and advice from the staff of the gas station B. .

  In such a case, even though the travel distance from the gas station B where the oil change was performed this time is only 1000 km, the gas station which is the measurement start point of the currently measured travel distance. When oil replacement guidance is given at a point where the travel distance from A is 5000 km, the user is prompted to perform unnecessary oil replacement, which is not in line with the actual situation.

  As a second example, as in the first example, consider a case where a required elapsed time of one year is set and stored as a maintenance cycle for engine oil.

  In this case, for example, when the vehicle has entered the gas station C for refueling when the elapsed time from the most recent oil change is 11 months, the user must There is a possibility that a new oil change will be performed at the gas station C by the advice of the staff of the station C.

  In such a case, even though the elapsed time from the time when the oil change is performed at the gas station C is only one month, the measurement time of the elapsed time currently measured is started. When the oil change guidance is given at the time of 12 months from the time of the previous oil change (that is, the time of the latest oil change), as in the case of the first example, This will prompt the user to change oil that is useless.

  In order to avoid these situations, the measurement result of the mileage of the vehicle from the point where the latest (previous) maintenance was performed, which is used as a basis for determining whether or not the maintenance cycle has been reached (in the case of the first example) ) Or the measurement result (in the case of the second example) of the elapsed time from the time when the latest (previous) maintenance is performed needs to be initialized.

  However, such initialization processing is performed by the user performing, for example, a plurality of input operations by sequentially transitioning to the operation screens 1, 2, and 3 in a plurality of layers as shown in FIGS. It was a compelling result.

  4 shows a menu screen 1. On this menu screen 1, operation buttons 5 on which a plurality of menu items (details are not shown) are input using an input means such as a remote control or a touch panel. It is displayed as a selectable state by operation. The user can transition to the operation screen 2 shown in FIG. 5 by selecting the operation button 5A for shifting to the display of maintenance information on the menu screen 1.

  Next, FIG. 5 is a first maintenance information screen 2, and the first maintenance information screen 2 includes a plurality of operations in which names of vehicle parts to be subjected to maintenance of the host vehicle are written. The buttons 6 are listed as states that can be selected by an input operation using the input means. Further, on each operation button 6, as the maintenance information of the vehicle part corresponding to each operation button 6, the travel distance from the latest (previous) replacement execution point of the vehicle part and the latest (previous time) of the vehicle part. ) Exchange date is displayed.

  The user can change to the operation screen 3 shown in FIG. 6 by selecting the operation button 6 corresponding to the item of one desired vehicle part from the first maintenance information screen 2. ing.

  The first maintenance information screen 2 displays an operation button 9 for additionally registering a vehicle part managed as maintenance information, and the user selects the operation button 9 to select the vehicle part. It is possible to shift to an input operation for adding.

  Next, FIG. 6 is a second maintenance information screen 3, and the second maintenance information screen 3 includes details about the vehicle parts corresponding to the item selected on the first maintenance information screen 2. Maintenance information is listed.

  Specifically, the second maintenance information screen 3 includes an item information field 7, and the item information field 7 includes a vehicle part that is a display target of maintenance information on the second maintenance information screen 3. The name (engine oil in FIG. 6) is displayed.

  The second maintenance information screen 3 includes a first replacement cycle information column 8. The first replacement cycle information column 8 includes the vehicle parts displayed in the item information column 7. The required travel distance (5000 km in FIG. 6) is displayed as a currently set maintenance cycle (replacement cycle). The first replacement cycle information column 8 includes an operation button 8A, and the user can change the required travel distance displayed in the column 8 by operating the operation button 8A. Has been.

  Further, the second maintenance information screen 3 includes a second replacement cycle information column 10, and the second replacement cycle information column 10 includes the vehicle parts displayed in the item information column 7. The required elapsed time (one year in FIG. 6) is displayed as the currently set maintenance cycle (replacement cycle). The second replacement cycle information column 10 includes an operation button 10A, and the user can change the required elapsed time displayed in the column 10 by operating the operation button 10A. Has been.

  Furthermore, the second maintenance information screen 3 includes a mileage information column 11, and the mileage information column 11 includes the latest (for the vehicle parts displayed in the item information column 7 ( The travel distance of the host vehicle from the point where the previous maintenance (oil change in FIG. 6) was performed is displayed.

  The travel distance information column 11 includes an operation button 11A, and the user operates the operation button 11A to change the travel distance displayed in the column 11 to 0 km, whereby the first distance described above is obtained. The initialization in the example can be performed.

  In addition, the second maintenance information screen 3 includes a replacement date information column 12, and this replacement date information column 12 includes the latest information on the vehicle parts displayed in the item information column 7. The date (implementation date) on which (previous) maintenance (oil change in FIG. 6) was performed is displayed.

  This exchange date information column 12 is provided with an operation button 12A, and the user operates the operation button 12A to update (change) the date displayed in the column 12 to thereby change the second date. The initialization in the example can be performed.

  As described above, conventionally, when the next maintenance is performed before the maintenance cycle is reached, the user is required to initialize the measurement result of the travel distance or the measurement result of the elapsed time. It was forced to require complicated operations.

  The present invention has been made in view of such problems, and can guide the maintenance of the host vehicle at an optimal timing without complicated operations, thereby improving operability and convenience. An object of the present invention is to provide a vehicle maintenance support device that can be improved.

  In order to achieve the above-described object, a vehicle maintenance support device according to the present invention is installed in a host vehicle, and performs maintenance of the host vehicle including at least one of replacement, replenishment, and inspection of vehicle parts constituting the host vehicle. A vehicle maintenance support device for assisting, wherein at least one of a distance that the host vehicle should travel and a time that should elapse between the maintenance of the host vehicle and the next maintenance is maintained Maintenance cycle storage means for storing as a cycle, and after detecting that the latest maintenance of the host vehicle has been performed, the travel distance of the host vehicle from the point where the latest maintenance has been performed and the latest maintenance Measuring means for cumulatively measuring at least one of the elapsed time from the time when When a fixed result reaches the maintenance cycle stored in the maintenance cycle storage means, guidance means for guiding the next maintenance of the latest maintenance, own vehicle position detection means for detecting the own vehicle position, The measurement result by the measurement means does not reach the maintenance cycle, the insufficient amount of the measurement result with respect to the maintenance cycle is equal to or less than a predetermined amount, and the detection result by the vehicle position detection means is It shows the position of a predetermined facility where maintenance of the vehicle can be performed, and further, in the predetermined facility, on the condition that the engine of the host vehicle is stopped and then re-driven, An inquiry as to whether or not the own vehicle has been maintained at a predetermined facility is made in a state where a response from the user is possible. And an initialization unit that initializes the measurement result of the measurement unit when the user responds to the inquiry by the inquiry unit that the user has maintained the vehicle in the predetermined facility. It is characterized by having prepared.

  According to such a configuration, when the next maintenance for the latest maintenance detected by the measuring means is satisfied when it is satisfied that the next maintenance has already been performed before the maintenance cycle is reached, an inquiry is made. The user can be inquired as to whether or not the maintenance has been performed by the means, and when the response indicating that the maintenance has been performed is made in response to this inquiry, the measurement result of the measuring means is initialized by the initialization means. Therefore, it is possible to guide the maintenance of the host vehicle at the optimal timing without complicated operations.

  The vehicle maintenance support device main body is formed to support maintenance of the host vehicle for a plurality of vehicle parts constituting the host vehicle, and the maintenance cycle storage means includes the plurality of vehicle parts. The maintenance unit is configured to store each maintenance cycle individually, and the measuring means includes, for each of the plurality of vehicle parts, the travel distance of the host vehicle from the point where the latest maintenance is performed and the latest maintenance. Is formed so as to cumulatively measure at least one of the elapsed time from the time when the measurement is performed, and the guide means has a measurement result of the measurement means corresponding to an arbitrary vehicle part in the plurality of vehicle parts, When the maintenance cycle corresponding to the arbitrary vehicle component stored in the maintenance cycle storage means is reached, the arbitrary vehicle It is formed so as to guide the next maintenance of the latest maintenance for a product, and the inquiry means has the measurement result by the measuring means corresponding to the arbitrary vehicle part corresponding to the arbitrary vehicle part. The maintenance cycle has not been reached, the amount of the measurement result that is insufficient with respect to the maintenance cycle is equal to or less than a predetermined amount corresponding to the arbitrary vehicle component, and the detection result by the own vehicle position detection means is the arbitrary vehicle It shows the position of a predetermined facility where maintenance of the host vehicle can be performed with respect to parts, and further, on the condition that the engine of the host vehicle is stopped and then redriven in the predetermined facility. Has the user performed maintenance on the vehicle for the arbitrary vehicle part at the predetermined facility? The initializing means targets the arbitrary vehicle part in the predetermined facility in response to the inquiry by the inquiry means. It is preferable that the measurement result of the measurement unit corresponding to the arbitrary vehicle part is initialized when a response is made that the maintenance of the host vehicle is performed.

  According to such a configuration, since the measurement result of the measuring means can be initialized for each vehicle part by the initializing means, it is automatically performed at an optimal timing for each vehicle part without complicated operation. The vehicle maintenance guidance can be performed.

  Further, the predetermined facility includes a time measuring unit that measures a time from when the engine of the host vehicle is stopped until it is re-driven, and the inquiry unit includes the time measured by the time measuring unit as a threshold value. It is preferable that the inquiry is made on the condition that it is more than time.

  And according to such a structure, the engine of the own vehicle is stopped as a further condition for estimating that the next maintenance for the latest maintenance detected by the measuring means has already been performed before reaching the maintenance cycle. Since it is possible to make inquiries by means of inquiry after satisfying that the time between being re-driven and being redriven is equal to or greater than the threshold time, avoid making unnecessary inquiries. Can improve comfort.

  Furthermore, the predetermined facility is a store that handles the maintenance of the own vehicle, and the inquiry means that the time when the engine of the own vehicle in the store is stopped is a time within the business hours of the store. It is preferable that the inquiry is made as a further condition.

  According to such a configuration, as a further condition for estimating that the next maintenance with respect to the latest maintenance detected by the measuring means has already been performed before reaching the maintenance cycle, the self-management in the store handling the maintenance is required. Since it is possible to make inquiries by means of inquiry after satisfying that the time when the vehicle engine is stopped is within the business hours of the store, avoid making unnecessary inquiries. Can improve comfort.

  The predetermined facility may be a point where the latest maintenance is performed.

  According to such a configuration, initialization by the initialization unit can be performed after making an inquiry by the inquiry unit even at the same point where the latest maintenance is performed.

  Further, the maintenance of the host vehicle may include replacement of oil as the vehicle part.

  According to such a configuration, oil replacement guidance can be performed at an optimal timing without complicated operations.

  Furthermore, it is preferable that the vehicle is mounted on an in-vehicle navigation device capable of guiding the host vehicle from a current value to a destination.

  And according to such a structure, since the function of a vehicle-mounted navigation apparatus can be used, cost can be reduced and compactization can be achieved.

  According to the vehicle maintenance support device of the present invention, it is possible to guide the maintenance of the host vehicle at an optimal timing without complicated operations, and the operability and convenience can be improved. .

  Hereinafter, an embodiment of a vehicle maintenance support device according to the present invention will be described with reference to FIGS. 1 to 3.

  Note that portions having the same or similar basic configuration as those in the related art will be described using the same reference numerals.

  FIG. 1 shows an in-vehicle navigation device 14 having a function as a vehicle maintenance support device in the present embodiment. The in-vehicle navigation device 14 is roughly classified to guide the host vehicle from the current location to the destination. A navigation main unit 15 that performs main processing and control for navigation, and a GPS receiver 16, a hard disk drive 17, an input operation unit 18, a display 19, and a speaker 20 connected to the navigation main unit 15, respectively. Yes.

  The GPS receiver 16 receives information on the orbit and time (hereinafter referred to as GPS information) from the GPS satellite 21 and inputs the received GPS information to the navigation main unit 15.

  The hard disk drive 17 stores map data for executing various functions of the in-vehicle navigation device 14. The map data includes road data and background data used for executing the map display function and the route guidance function. And route calculation data used for execution of the route search function and search data used for execution of the facility search function.

  The input operation unit 18 may be, for example, a remote controller, a linear or rotary encoder, or a touch panel of the display 19.

  The navigation main unit 15 will be described in detail. The navigation main unit 15 has a navigation CPU 22 as a main control unit.

  The GPS receiver 16 described above is connected to the navigation CPU 22, and GPS information from the GPS receiver 16 is input to the navigation CPU 22.

  In addition, an autonomous navigation sensor 23 such as a gyro sensor is connected to the navigation CPU 22, and the autonomous navigation sensor 23 detects the vehicle position (relative position) by autonomous navigation and inputs the detection result to the navigation CPU 22. It is like that.

  Further, a hard disk drive 17 is connected to the navigation CPU 22 via a system bus 24.

  Furthermore, a display 19 is connected to the navigation CPU 22 via a system bus 24 and an image interface (I / F) 26.

  The navigation CPU 22 is connected to an input operation unit 18 via a system bus 24 and a user interface (I / F) 27.

  Furthermore, a speaker 20 is connected to the navigation CPU 22 via an audio interface (I / F) 28.

  Furthermore, vehicle information including an ignition signal is input to the navigation CPU 22 from the own vehicle side.

  The navigation CPU 22 has an operation screen drawing unit 31 as one of its functional blocks. The operation screen drawing unit 31 generates drawing data for various operation screens, and displays the generated drawing data on the display 19. The operation screen is displayed by outputting to.

  The navigation CPU 22 has a maintenance information storage unit 32 as one of its functional blocks. The maintenance information storage unit 32 includes at least one of replacement, replenishment, and inspection of vehicle parts constituting the host vehicle. Information related to the maintenance of the host vehicle including the two (hereinafter referred to as maintenance information) is individually stored for each of a plurality of vehicle parts constituting the host vehicle.

  More specifically, the maintenance information storage unit 32 stores a maintenance cycle as one piece of maintenance information, so that the maintenance information storage unit 32 functions as a maintenance cycle storage unit. Yes.

  The maintenance cycle includes the distance (hereinafter referred to as a required travel distance) that the host vehicle must travel between the time when the host vehicle is maintained once and the time when the next maintenance is performed. The time that should elapse between the time when the maintenance is performed once and the time when the maintenance is performed next (hereinafter referred to as the required elapsed time) can be mentioned.

  The maintenance cycle stored in the maintenance information storage unit 32 may be either one of the required travel distance and the required elapsed time, or both.

  In addition, in the maintenance information storage unit 32, as maintenance information, part name information indicating the names of vehicle parts constituting the subject vehicle to be maintained, the vehicle information from the point where the latest maintenance of the subject vehicle is performed, The travel distance information indicating the travel distance, the implementation date information indicating the date on which the latest maintenance of the host vehicle is performed, and the like may be included. The maintenance information may include information other than these.

  Further, the navigation CPU 22 has a maintenance information recording unit 33 as one of its functional blocks. This maintenance information recording unit 33 stores maintenance information for each vehicle part in the maintenance information storage unit 32 for each vehicle part. It is to be recorded individually.

  The maintenance information recording unit 33 displays the maintenance information screen 3 as shown in FIG. 6 on the display 19 via the operation screen drawing unit 31 and then inputs the input operation unit 18 to the maintenance information screen 3. Maintenance information corresponding to the operation may be recorded in the maintenance information storage unit 32.

  Furthermore, the navigation CPU 22 has a measuring unit 34 as a measuring means as one of its functional blocks.

  The measurement unit 34 updates the maintenance information stored in the maintenance information storage unit 32 (for example, the implementation date information described above), and thereby the subject vehicle targeting the vehicle parts corresponding to the updated maintenance information. That the latest maintenance is performed is individually detected for each arbitrary vehicle part stored in the maintenance information storage unit 32.

  In addition, the measurement unit 34 accumulates at least one of the travel distance of the host vehicle from the point where the latest maintenance of the host vehicle is performed and the elapsed time from the time when the latest maintenance of the host vehicle is performed. The measurement is performed individually for each of the arbitrary vehicle parts.

  However, the measurement of the travel distance by the measurement unit 34 may be performed when the maintenance information storage unit 32 adopts a configuration in which the required travel distance is stored as a maintenance cycle. The travel distance may be measured based on various information such as GPS information and vehicle speed pulses.

  The measurement of the elapsed time by the measurement unit 34 may be performed when the maintenance information storage unit 32 employs a configuration in which the required elapsed time is stored as a maintenance cycle. The elapsed time may be measured based on various information such as GPS information and radio time signal.

  When the travel distance is measured by the measurement unit 34, the measurement result of the travel distance is recorded in the maintenance information storage unit 32 as the travel distance information by the maintenance information recording unit 33.

  In addition, the navigation CPU 22 has a maintenance guide part 36 as a guide means as one of its functional blocks, and the maintenance guide part 36 acquires the measurement result of the measurement part 34.

  And when the measurement result acquired from the measurement part 34 reaches the maintenance period memorize | stored in the maintenance information storage part 32, the maintenance guide part 36 was already performed about the vehicle components which reached the maintenance period. The next maintenance guide for the latest maintenance is provided. This maintenance guidance may be performed, for example, by notifying the user of the names of vehicle parts to be replaced, replenished, or inspected by display on the display 9 or sound output by the speaker 20.

  When the maintenance information storage unit 32 stores both the required travel distance and the required elapsed time as the maintenance cycle corresponding to the same vehicle part, the maintenance guide unit 36 performs measurement by the measurement unit 34. When the result reaches the maintenance cycle of either the required travel distance or the required elapsed time, guidance for the next maintenance may be performed.

  Further, the navigation CPU 22 has, as one of its functional blocks, a vehicle position calculation unit 37 as vehicle position detection means. The vehicle position calculation unit 37 is input from the GPS receiver 16. The vehicle position is calculated (detected) by appropriately using the GPS information and the detection result input from the autonomous navigation sensor 23. When calculating the vehicle position, the vehicle position calculation unit 37 reads the map data from the hard disk drive 17 and uses the read map data to determine the vehicle position on the corresponding road in the map data. A map matching process for correcting the position is performed. When the map matching process is properly performed, the own vehicle position calculation unit 37 uses the own vehicle position after the map matching process as a final calculation (detection) result.

  Furthermore, the navigation CPU 22 has an inquiry unit 38 as an inquiry means, and this inquiry unit 38 reaches the maintenance cycle when the next maintenance for the latest maintenance of the host vehicle detected by the measurement unit 34 is reached. It is determined whether or not conditions sufficient to assume that it has already been performed are satisfied.

  That is, the inquiry unit 38 acquires the measurement result of the measurement unit 34, and based on the acquired measurement result, the measurement result has not reached the maintenance cycle stored in the maintenance information storage unit 32, and Whether or not the first condition that the shortage of the measurement result with respect to the maintenance cycle is equal to or less than a predetermined amount is satisfied is determined for each vehicle component. When the maintenance cycle is the required travel distance, the unit of the shortage is a distance (for example, [km]). When the maintenance cycle is the required elapsed time, the unit of the shortage is time (for example, [h] or days). Needless to say, the shortage may be different for each vehicle component.

  Further, the inquiry unit 38 acquires the calculation result of the own vehicle position calculation unit 37, and based on the acquired calculation result, the calculation result is a predetermined facility that can perform maintenance of the own vehicle (hereinafter referred to as a maintainable facility). It is determined individually for each vehicle part whether or not the second condition such as indicating the position of the vehicle component is satisfied. The maintainable facility may be a facility where the user has performed maintenance of the host vehicle (including the latest maintenance) in the past, or a store such as a dealer or a gas station that handles the maintenance of the host vehicle (the user has been in the past). (Including stores where maintenance was performed).

  Further, the inquiring unit 38 satisfies the third condition that the engine of the host vehicle is stopped and then re-driven at the maintainable facility based on the ignition signal in the vehicle information acquired from the host vehicle side. It is determined whether or not.

  The inquiring unit 38 determines whether or not further conditions are satisfied in addition to the first to third conditions as a condition sufficient to estimate that the next maintenance has already been performed before reaching the maintenance cycle. You may make it do.

  For example, the inquiry unit 38 determines whether or not the fourth condition that the time from when the engine of the host vehicle is stopped to when it is restarted in the maintainable facility is a threshold time or more is further satisfied. You may make it determine. However, in this case, it is necessary for the in-vehicle navigation device 14 to include a time measuring unit that measures the time from when the engine of the host vehicle is stopped to when it is re-driven in the maintenance facility. This time measuring means may measure the time by the same method as the measurement of the elapsed time by the measuring unit 34.

  In the case where the maintenance facility is a store that handles maintenance of the host vehicle, the inquiry unit 38 indicates that the time when the engine of the host vehicle in the store is stopped is within the business hours of the store. It may be determined whether the fifth condition is further satisfied. The business hours may be acquired from map data, or may be acquired by communication using a communication means (not shown). The fifth condition may be added to the first to third conditions together with the fourth condition, or may be selectively added to the first to third conditions together with the fourth condition. It may be a thing.

  Then, when all of the conditions determined by the inquiring unit 38 are satisfied, the inquiring unit 38 performs maintenance of the host vehicle for vehicle parts that satisfy all the conditions in the maintainable facility. An inquiry as to whether or not the user has performed is made in a state in which a response from the user is possible.

  This inquiry may be made, for example, by displaying an inquiry message 39 as shown in FIG.

  This inquiry message 39 is a place where the current location has changed the engine oil (oil change in FIG. 2) three months ago, and the travel distance of the host vehicle from the point at which the latest oil change was made. In addition to indicating that the maintenance cycle is less than 5000 km, 4950 km, it is inquired whether or not an oil change has been performed at the current location.

  Further, the inquiry message 39 includes two operation buttons 39A and 39B for selecting “Yes” or “No”, and the user selects one of these operation buttons 39A and 39B by using the input operation unit. 18 is used to respond to the inquiry content of the inquiry message 39.

  For the generation of such an inquiry message 39, the measurement result of the measurement unit 34 and the maintenance cycle information stored in the maintenance information storage unit 32 may be used.

  Further, the navigation CPU 22 has an initialization unit 40 as initialization means, and this initialization unit 40 acquires a response result of the user using the input operation unit 18 with respect to the inquiry message 39. Yes.

  Then, if the response result to the acquired inquiry message 39 is a response result indicating that the user has performed maintenance of the host vehicle in the maintenance-able facility, the initialization unit 40 performs the vehicle part that performed the maintenance. The measurement result of the measurement unit 34 corresponding to is initialized.

  According to such a configuration, the inquiry unit 38 is satisfied when conditions sufficient to assume that the next maintenance for the latest maintenance detected by the measurement unit 34 has already been performed before reaching the maintenance cycle are satisfied. Thus, it is possible to inquire the user whether or not the maintenance has been performed. When a response indicating that maintenance has been performed is made in response to this inquiry, the initialization unit 40 can automatically initialize the measurement result of the measurement unit 34.

  Thereby, it is possible to avoid the next maintenance guidance by the maintenance guidance unit 36 based on the measurement result of the measurement unit 34 before initialization.

  Therefore, according to the present embodiment, it is possible to guide the maintenance of the host vehicle for each vehicle component at an optimal timing for each vehicle component without complicated operations.

  Further, if the fourth condition and the fifth condition described above are further used as the conditions determined by the inquiry unit 38, it is possible to avoid making unnecessary inquiries and to improve comfort. Can do.

  In addition to the above configuration, the navigation CPU 22 includes various functional blocks for navigation.

  For example, the navigation CPU 22 has a destination setting unit 43 as one of its functional blocks. The destination setting unit 43 corresponds to the destination setting operation screen displayed by the operation screen drawing unit 31. A destination corresponding to the input operation result of the user using the input operation unit 18 is set.

  The navigation CPU 22 has a route search unit 45 as one of its functional blocks. The route search unit 45 searches for a recommended route to the destination set by the destination setting unit 43. It has become.

  Further, the navigation CPU 22 has a route guidance unit 46 as one of its functional blocks. The route guidance unit 46 takes the host vehicle to the destination along the recommended route searched by the route search unit 45. The route is guided (route guidance). This route guidance may be based on the display of a guidance image (intersection enlarged image or the like) on the display 19, or may be based on the output of guidance voice (for example, intersection right / left turn guidance) from the speaker 20. Alternatively, it may be based on both the guide image and the guide voice.

  Furthermore, the navigation CPU 22 has a map drawing unit 47 as one of its functional blocks. This map drawing unit 47 is a map around the vehicle position calculated by the vehicle position calculation unit 37 or an input. A map is displayed on the display 19 by generating map drawing data around the point designated by the operation of the operation unit 18 and outputting the generated drawing data to the display 19.

  Further, a memory 48 such as SDRAM or FlashROM is connected to the system bus 24, and this memory 48 stores data used for navigation (map data and the like), an execution program of the navigation CPU 22 and the like (temporary storage). Also included).

  Note that the function of the in-vehicle navigation device 14 as a vehicle maintenance support device may be executed regardless of whether the host vehicle is traveling on the recommended route while receiving route guidance.

  Next, the main operation of this embodiment will be described with reference to FIG.

  In the following description, for the sake of convenience, the description will be limited to the maintenance of the host vehicle by exchanging engine oil as a vehicle component.

  In the initial state, the maintenance information storage unit 32 stores a required travel distance of 5000 km as a maintenance cycle for engine oil.

  Furthermore, in the initial state, it is assumed that the travel distance of the host vehicle from the point where the latest engine oil replacement (hereinafter abbreviated as oil replacement) has been performed is cumulatively measured by the measurement unit 34. .

  Furthermore, in the initial state, it is assumed that the host vehicle is stopped at a predetermined point.

  Then, from the initial state, as shown in step 1 (ST1) of FIG. 3, when the host vehicle starts to travel from the current location, in the subsequent step 2 (ST2), a new host vehicle position corresponding to the host vehicle travels. Are sequentially calculated by the vehicle position calculation unit 37, and further, in step 3 (ST3), the measurement result by the measurement unit 34 is cumulatively updated as the vehicle travels. The processing in step 2 (ST2) and the processing in step 3 (ST3) may be performed simultaneously.

  Next, in step 4 (ST4), the inquiry unit 38 determines whether or not the first condition for the travel distance is satisfied. If satisfied, the process proceeds to step 6 (ST6). If not satisfied, the process proceeds to step 5 (ST5).

  In step 5 (ST5), the inquiry unit 38 determines whether the measurement result of the measurement unit 34 has reached the maintenance cycle (5000 km). If the maintenance cycle has been reached, the process is terminated. If the maintenance cycle has not been reached, the process returns to step 1 (ST1).

  When the process is ended in step 5 (ST5), the next maintenance guidance by the maintenance guidance unit 36 is performed.

  On the other hand, in step 6 (ST6), the inquiry unit 38 determines whether or not the second condition is satisfied. If satisfied, the process proceeds to step 7 (ST7), and is satisfied. If not, the process returns to step 1 (ST1).

  Next, in step 7 (ST7) and step 8 (ST8) following this step 7 (ST7), the inquiry unit 38 determines whether or not the third condition is satisfied.

  More specifically, first, in step 7 (ST7), the inquiry unit 38 determines whether or not the ignition is turned off (that is, the engine is stopped) based on the ignition signal. If YES, the process proceeds to step 8 (ST8). If not OFF, the process returns to step 1 (ST1).

  In step 8 (ST8), the inquiry unit 38 determines whether or not the ignition is turned on (that is, the engine has been re-driven). Is satisfied, the process proceeds to step 9 (ST9). If it is not turned on, the process of step 8 (ST8) is repeated.

  Next, in step 9 (ST9), the inquiry unit 38 makes an inquiry as to whether or not the user has changed the oil in the maintainable facility corresponding to the current vehicle position, so that the user can respond. This inquiry may be made by displaying the inquiry message 39 described above.

  Next, in step 10 (ST10), the initialization unit 40 determines whether or not a response indicating that the oil change has been made is made in response to the inquiry in step 9 (ST9), and indicates that the oil change has been performed. When the response is made, the process proceeds to step 11 (ST11), and when the response that the oil change is not performed is made, the process is terminated.

  Next, in step 11 (ST11), the initialization unit 40 initializes the measurement result (travel distance) of the measurement unit 34 corresponding to the engine oil, and the process ends. This initialization includes processing for automatically updating the travel distance information in the maintenance information stored in the maintenance information storage unit 32 to 0 [km] via the maintenance information recording unit 33.

  Note that even when the elapsed time from the time when the latest maintenance is performed is measured by the measurement unit 34, the processing of steps 1 (ST1) to ST11 (ST11) can be applied. In this case, the measurement result of the measurement unit 34 is initialized by automatically performing the next maintenance on the execution date information in the maintenance information stored in the maintenance information storage unit 32 via the maintenance information recording unit 33. It includes a process to update on the day when it was opened.

  As described above, according to the present embodiment, when the conditions sufficient to assume that the next maintenance for the latest maintenance detected in the measurement unit 34 has already been performed before reaching the maintenance cycle are satisfied. In addition, the inquiry unit 38 can inquire the user whether or not the next maintenance has been performed, and if a response indicating that the maintenance has been performed is made in response to the inquiry, the initialization unit 40 performs measurement. Since the measurement result of the unit 34 can be initialized, it is possible to guide the maintenance of the host vehicle at an optimal timing without complicated operations.

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible as needed.

  For example, the vehicle-mounted navigation device 14 may be configured to be able to display the operation screens shown in FIGS.

  Moreover, what is necessary is just to set the default value of a maintenance period in the maintenance information storage part 32 at the beginning of manufacture of the vehicle-mounted navigation apparatus 14.

  Furthermore, the present invention can be applied to various aspects of maintenance such as replenishment of battery fluid and lamp inspection in addition to oil replacement.

1 is a block diagram showing an in-vehicle navigation device having a function of a vehicle maintenance support device as an embodiment of a vehicle maintenance support device according to the present invention. The figure which shows an inquiry message in embodiment of the vehicle maintenance assistance apparatus which concerns on this invention. The flowchart which shows embodiment of the vehicle maintenance assistance apparatus which concerns on this invention The figure which shows the menu screen displayed by the vehicle-mounted navigation apparatus employ | adopted conventionally The figure which shows the 1st maintenance information screen displayed by the vehicle-mounted navigation apparatus employ | adopted conventionally The figure which shows the 2nd maintenance information screen displayed by the vehicle-mounted navigation apparatus employ | adopted conventionally

Explanation of symbols

DESCRIPTION OF SYMBOLS 14 Car navigation system 32 Maintenance information storage part 34 Measurement part 36 Maintenance guide part 37 Own vehicle position calculation part 38 Inquiry part 40 Initialization part

Claims (7)

A vehicle maintenance support device for supporting maintenance of the host vehicle, which is mounted on the host vehicle and includes at least one of replacement, replenishment and inspection of vehicle parts constituting the host vehicle,
Maintenance cycle storage means for storing, as a maintenance cycle, at least one of a distance that the host vehicle should travel and a time that should elapse between the maintenance of the host vehicle and the next maintenance.
After detecting that the latest maintenance of the host vehicle has been performed, the travel distance of the host vehicle from the point at which the latest maintenance has been performed and the elapsed time from the time at which the latest maintenance has been performed A measuring means for measuring at least one cumulatively;
When the measurement result of the measuring unit reaches the maintenance cycle stored in the maintenance cycle storage unit, a guidance unit for guiding next maintenance of the latest maintenance;
Own vehicle position detecting means for detecting the own vehicle position;
The measurement result by the measurement means does not reach the maintenance cycle, the insufficient amount of the measurement result with respect to the maintenance cycle is not more than a predetermined amount, and the detection result by the own vehicle position detection means is the own vehicle The location of the predetermined facility where the maintenance can be performed is indicated, and the predetermined facility is further provided to the user on the condition that the engine of the host vehicle is stopped and then restarted at the predetermined facility. Inquiry means for inquiring whether or not the maintenance of the host vehicle has been performed in the facility, as a state in which a response from the user is possible,
An initialization means for initializing the measurement result of the measurement means when the user responds to the inquiry by the inquiry means that the user has maintained the vehicle in the predetermined facility. A vehicle maintenance support device. The vehicle maintenance support device main body is formed to support maintenance of the host vehicle for a plurality of vehicle parts constituting the host vehicle,
The maintenance cycle storage means is configured to individually store a maintenance cycle for each of the plurality of vehicle parts,
The measuring means accumulates at least one of a travel distance of the host vehicle from a point where the latest maintenance is performed and an elapsed time since the latest maintenance is performed for each of the plurality of vehicle parts. Formed to measure automatically,
In the guiding means, the measurement result of the measuring means corresponding to any vehicle part in the plurality of vehicle parts has reached the maintenance period corresponding to the arbitrary vehicle part stored in the maintenance period storage means. In the case, it is formed to guide the next maintenance of the latest maintenance for the arbitrary vehicle parts,
The inquiry means has a measurement result by the measurement means corresponding to the arbitrary vehicle part that has not reached the maintenance cycle corresponding to the arbitrary vehicle part, and an insufficient amount of the measurement result with respect to the maintenance cycle is It is below a predetermined amount corresponding to an arbitrary vehicle part, and the detection result by the own vehicle position detection means indicates a position of a predetermined facility where maintenance of the own vehicle can be performed for the arbitrary vehicle part. Furthermore, on the condition that the engine of the host vehicle is stopped and then re-driven at the predetermined facility, the user is directed to the arbitrary vehicle part at the predetermined facility. An inquiry as to whether or not maintenance of the host vehicle has been performed is made to be performed in a state where a response from the user is possible,
When the initialization unit responds to the inquiry by the inquiry unit that the user has performed maintenance of the own vehicle for the arbitrary vehicle part in the predetermined facility, the initialization unit The vehicle maintenance support device according to claim 1, wherein the vehicle maintenance support device is configured to initialize a measurement result of the measurement unit corresponding to the above. A time measuring means for measuring a time from when the engine of the host vehicle is stopped to being re-driven in the predetermined facility;
The said inquiry means is formed so that the said inquiry may be performed on the further condition that the said time measured by the said time measuring means is more than threshold time. The claim 1 or Claim 2 characterized by the above-mentioned. The vehicle maintenance support device described. The predetermined facility is a store that handles maintenance of the own vehicle,
The inquiry means is configured to make the inquiry on the condition that the time when the engine of the own vehicle in the store is stopped is a time within the business hours of the store. The vehicle maintenance support device according to any one of claims 1 to 3. The vehicle maintenance support device according to any one of claims 1 to 4, wherein the predetermined facility is a point where the latest maintenance is performed.   The vehicle maintenance support device according to any one of claims 1 to 5, wherein the maintenance of the host vehicle includes replacement of oil as the vehicle component.   The vehicle maintenance support device according to any one of claims 1 to 6, wherein the vehicle maintenance support device is mounted on an in-vehicle navigation device capable of guiding the host vehicle from a current value to a destination. .

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