JP2018165684A - Range computation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a range computation apparatus capable of computing a range more accurately.SOLUTION: A range computation apparatus includes: a travel distance measurement part 22 and a travel time measurement part 23 for measuring a travel distance and travel time for each travel mode; a fuel economy computation part 24 for computing fuel economy, for each travel mode, on the basis of the travel distance; a fuel residual amount computation part 25 and a range computation part 26 for computing a range on the basis of the fuel economy and fuel residual amount; and a touch panel display 3 for displaying a range for each travel mode. For a travel mode with at least one of the travel distance and travel time less than a given threshold, the range computation part 26 corrects the fuel economy by multiplying with a given factor.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cruising distance calculation device that calculates the cruising distance of a vehicle having a plurality of travel modes.

  In recent years, some vehicles using an internal combustion engine (engine) as a drive source can select various travel modes. Such travel modes include, for example, an eco-mode that can travel economically, a four-wheel drive travel mode, a lock mode that improves running performance on wet roads and snowy roads, and a power mode that can travel at high output Etc. The same applies to a hybrid vehicle, and various travel modes such as an EV mode and a series mode can be selected.

  In such a vehicle, not only simply detecting and displaying the remaining fuel level and remaining battery level (remaining battery level), but also the distance that the vehicle can travel with the remaining fuel level and remaining battery level (hereinafter referred to as cruising range). Technology has been developed to estimate and display to the driver.

  For example, Patent Literature 1 discloses a technique for calculating a cruising distance for each travel mode. In this technique, since electricity consumption and fuel consumption are calculated for each traveling mode, the reliability and validity of the calculated value of the cruising distance can be improved.

  However, when the travel distance is short, the accuracy of the calculated value of electricity consumption and fuel consumption may be low. For this reason, there is room for improving the accuracy of the cruising distance using those electricity costs and fuel consumption.

JP 2014-101103 A

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a cruising distance calculation device capable of calculating a more accurate cruising distance.

  A first aspect of the present invention that solves the above-described problem is a cruising distance calculation device that calculates a cruising distance of a vehicle that has a plurality of driving modes and that runs by driving a drive source with fuel or electric power, Calculated by the measuring means for measuring the travel distance and the travel time for each travel mode, the fuel consumption / electricity cost calculation means for calculating the fuel consumption or the power consumption based on the travel distance for each travel mode, and the fuel consumption / electricity cost calculation means Cruising distance calculation means for calculating a cruising distance based on the fuel efficiency or electricity cost and the remaining fuel or battery remaining, and display means for displaying the cruising distance for each of the travel modes calculated by the cruising distance calculation means The cruising distance calculation means is configured to determine the fuel consumption or the power consumption for the travel mode in which at least one of the travel distance or the travel time is less than a predetermined threshold. Lying in cruising distance calculating device, characterized in that the correction by multiplying the coefficient.

  In the first aspect, when the travel distance is short or the travel time is short, the actual electricity cost and the actual fuel consumption are corrected by multiplying by a coefficient, so that more accurate actual electricity cost and actual fuel consumption can be obtained. Then, since the cruising distance is calculated using such actual power consumption and actual fuel consumption, a more accurate cruising distance can be calculated and presented to the driver.

  According to a second aspect of the present invention, in the cruising distance calculation device according to the first aspect, the cruising distance calculation means is configured such that the travel distance is less than a predetermined threshold and the travel time is greater than or equal to a predetermined threshold. The travel mode is corrected by multiplying the coefficient greater than 1 by the fuel consumption or the power consumption calculated by the fuel consumption / electricity calculation means.

  In the second mode, when the time in which the vehicle is traveling in the city is long or the time in which the vehicle is stopped due to traffic congestion is long, the actual power consumption and the actual fuel consumption which are calculated to be too small are corrected to appropriate values, and more accurately. The cruising range can be calculated and displayed.

  According to a third aspect of the present invention, in the cruising distance calculation device according to the first or second aspect, the cruising distance calculation means is configured such that the travel distance is equal to or greater than a predetermined threshold value, and the travel time is a predetermined threshold value. The driving mode that is less than 1 is corrected by multiplying the coefficient smaller than 1 by the fuel consumption or the electric cost calculated by the fuel consumption / electricity calculating means.

  In the third aspect, when the vehicle is traveling at high speed, the excessively calculated actual power consumption and actual fuel consumption can be corrected to appropriate values, and a more accurate cruising distance can be calculated and displayed.

  According to a fourth aspect of the present invention, in the cruising distance calculation device according to any one of the first to third aspects, the fuel consumption / electricity cost calculation unit divides the travel distance for each of the travel modes, and While specifying the 1st section where the fuel consumption or the electricity bill is the best, and the 2nd section where the worst is the 1st fuel consumption or the 1st electricity cost in the 1st section, the 2nd fuel consumption or the 2nd electricity bill in the 2nd section The cruising distance calculation means calculates a first cruising distance from the first fuel consumption or the first power consumption in the first section and the fuel remaining amount or the battery remaining amount for each travel mode. The second cruising distance is calculated from the second fuel consumption or the second power consumption in the second section and the fuel remaining amount or the battery remaining amount, and the display means is configured to calculate the first cruising distance and the second mileage. It is characterized by displaying the cruising distance In cruising distance calculating unit that.

  In the fourth mode, the driver is given a sense of security that the driver can travel only the shortest cruising distance (second cruising distance) at worst, and if the driving method is devised, the longest cruising distance (first cruising distance) can be driven. It is possible to provide information services that increase driving enjoyment such as

  According to a fifth aspect of the present invention, in the cruising distance calculation device according to any one of the first to fourth aspects, the display means displays the cruising distance calculated for the currently selected travel mode. The cruising distance in the travel mode that is not selected is displayed as a difference from the cruising distance calculated for the currently selected travel mode.

  In the fifth aspect, the driver can be provided with information as to how much the cruising distance changes when switching to another travel mode as compared to the currently selected travel mode.

  According to the present invention, a cruising distance calculation device capable of calculating a more accurate cruising distance is provided.

1 is a schematic configuration diagram of a vehicle. It is a block diagram of a cruising distance calculation part. It is a graph showing the relationship between an integrated travel distance and instantaneous electricity consumption. The display screen of the display apparatus provided in the vehicle is shown. It is a flowchart of a cruising distance calculation part. It is a flowchart of a cruising distance calculation part. It is a flowchart of a cruising distance calculation part.

  Hereinafter, modes for carrying out the present invention will be described. In addition, description of embodiment is an illustration and this invention is not limited to the following description.

<Embodiment 1>
FIG. 1 is a schematic configuration diagram of a vehicle according to the present embodiment. The vehicle 1 of this embodiment is a general vehicle provided with the engine 2 and has a plurality of travel modes. The driver can select any one of the travel modes, and the vehicle 1 travels according to the selected travel mode. As an example of the travel mode, there are an eco mode, a lock mode, and a power mode. The eco mode is a useful driving mode that is selected when the fuel efficiency is important, the lock mode is improved when driving on wet roads and snowy roads, and the power mode is selected when the output is important. .

  The vehicle 1 is equipped with a touch panel display 3 which is an example of a display means for displaying an input means for a driver to select a travel mode and a travel mode selection screen. The touch panel display 3 displays various information on the screen under the control of the cruising distance calculation device 20, and transmits an input operation on the screen to the cruising distance calculation device 20 as an electric signal. Note that the input means is not limited to the touch panel display 3. For example, mechanical input means such as a switch may be used. Further, a microphone and voice recognition means may be used as input means. That is, an input unit may be used in which the driving mode is selected when the voice recognition unit recognizes a specific word for switching the driving mode from the sound obtained from the microphone. Further, the output means is not limited to the touch panel display 3. For example, an output device such as a liquid crystal display may be used.

  The vehicle 1 includes a cruising distance calculation device 20. The cruising distance computing device 20 is constituted by a microcomputer (also referred to as an ECU) having a central processing unit and a main storage device, and is intended for various devices such as the engine 2 and control of a driving system (not shown) and an air conditioner. 1 integrated control. Furthermore, the cruising distance calculation device 20 has a function of calculating the cruising distance for each travel mode selected by the driver.

  FIG. 2 is a block diagram of a cruising distance calculation apparatus according to this embodiment. As shown in the figure, the cruising distance calculation device 20 includes a travel mode control unit 21, a travel distance measurement unit 22, a travel time measurement unit 23, a fuel consumption calculation unit 24, a remaining fuel calculation unit 25, and a cruising distance calculation unit 26. I have.

  The travel distance measurement unit 22 and the travel time measurement unit 23 are examples of the measurement unit described in the claims. The fuel consumption calculation unit 24 is an example of a fuel consumption / electricity calculation means described in the claims. The fuel remaining amount calculation unit 25 and the cruising distance calculation unit 26 are examples of cruising distance calculation means described in the claims.

  The driving mode control unit 21 controls the output control of the motor 4 and the engine 2 of the vehicle 1, the shift control of the transmission, and the distribution of the driving force in the case of four-wheel drive in accordance with the driving mode selected by the driver. change. For example, when the eco mode is selected, the traveling mode control unit 21 controls the engine 2, the transmission, the distribution of the driving force, and the like so that the fuel consumption-oriented characteristics are obtained. Similarly, when the lock mode is selected, the traveling mode control unit 21 controls the engine 2, the transmission, the distribution of driving force, and the like so as not to slip on a wet road surface or snowy road. When the power mode is selected, the travel mode control unit 21 controls the engine 2, the transmission, the distribution of the driving force, and the like so that the output-oriented characteristics are obtained.

  The travel distance measuring unit 22 measures the distance traveled by the vehicle 1 for each travel mode. The travel distance can be obtained by calculating the measurement values of various sensors. For example, the travel distance measuring unit 22 can calculate the travel distance from the rotational speed of the drive shaft of the engine 2 and the wheel diameter.

  The travel time measuring unit 23 measures the time that the vehicle 1 actually travels for each travel mode. The travel time can be measured by counting the time from the start of the travel mode until the vehicle 1 switches to another travel mode or the vehicle 1 stops driving.

  The fuel consumption calculation unit 24 calculates the fuel consumption based on the travel distance for each travel mode. To calculate fuel efficiency based on travel distance is to calculate the travel distance per unit fuel as the fuel efficiency from the travel distance measured for each travel mode and the amount of fuel consumed when traveling the travel distance. Say.

  For example, the fuel consumption calculation unit 24 calculates the fuel consumption consumed while the vehicle 1 travels a unit distance based on the fuel injection amount to the engine 2. The fuel consumption calculation unit 24 calculates the fuel consumption each time the vehicle travels the unit distance by integrating (time integration) the fuel injection amount while traveling the unit distance. The fuel consumption calculation unit 24 obtains the fuel consumption that is the travel distance per unit capacity of the fuel by dividing the travel distance by the fuel consumption.

  The remaining fuel amount calculation unit 25 detects or calculates the remaining fuel amount in the fuel tank. The fuel remaining amount calculation unit 25 may obtain the fuel amount by subtracting the amount of fuel consumed (fuel consumption amount) from the fuel amount immediately after refueling, for example, and a fuel meter that detects the remaining amount of fuel stored in the fuel tank. Detection information from (not shown) may be used as the remaining fuel amount.

  The cruising distance calculation unit 26 calculates a cruising distance based on the fuel consumption transmitted from the fuel consumption calculation unit 24 and the fuel remaining amount transmitted from the fuel remaining amount calculation unit 25. The fuel consumption and the remaining amount of fuel are calculated for each travel mode, and the cruising distance is also calculated for each travel mode.

  The cruising distance calculation unit 26 calculates the cruising distance based on the fuel consumption and the power consumption as described above when the travel distance and the travel time for each travel mode are equal to or greater than a predetermined threshold. On the other hand, when at least one of the travel distance and the travel time is less than a predetermined threshold, the cruising distance is obtained after correcting the fuel consumption and the power consumption.

  The predetermined threshold referred to in the present embodiment is a threshold determined for the travel distance and a threshold determined for the travel time. These threshold values may be different for each driving mode, or may be a common threshold value. As the threshold value, a distance or time sufficient to obtain stable fuel consumption is used. As an example, it is assumed that the threshold for the travel distance is 100 km, the threshold for the travel time is 100 hours, and is preset in the storage unit of the cruising distance calculation device 20.

  The cruising distance calculation unit 26 receives the travel distance for each travel mode from the travel distance measurement unit 22 and the travel time for each travel mode from the travel time measurement unit 23. The cruising distance calculation unit 26 compares each of the travel distance and the travel time with a threshold for each travel mode. Table 1 exemplifies correction modes corresponding to the comparison results.

  When the travel distance is equal to or greater than the threshold and the travel time is equal to or greater than the threshold, the vehicle travels a sufficiently long distance and a long time in the travel mode, and the fuel consumption calculated by the fuel consumption calculation unit 24 is accurate. Conceivable. For this reason, the cruising distance calculation unit 26 does not make corrections for such power consumption and fuel consumption.

  The correction mode A is a correction mode when the travel distance and the travel time are less than the threshold value. In this case, the fuel efficiency calculated by the fuel efficiency calculation unit 24 (hereinafter referred to as actual fuel efficiency) is considered to be low in accuracy. In this case, the predetermined fuel consumption is used instead of the actual fuel consumption. That is, the cruising distance calculation unit 26 performs correction for replacing the actual fuel consumption with the predetermined fuel consumption (multiplying a coefficient that provides the predetermined fuel consumption).

  The predetermined fuel consumption is a fuel consumption determined in advance for each travel mode. Specifically, a so-called catalog value obtained in accordance with a known measurement standard for measuring fuel consumption can be used.

  When the travel distance and travel time are less than the threshold, it is assumed that the actual fuel consumption is not stable and greatly increases or decreases. If the cruising distance is calculated using such actual fuel consumption, the cruising distance also becomes unstable. However, since the predetermined fuel consumption without variation is used by the correction, variation in cruising distance obtained thereby can be suppressed.

  The correction mode B is a correction mode when the travel distance is less than the threshold and the travel time is greater than or equal to the threshold. In this case, the actual mileage is multiplied by a coefficient larger than 1, and the cruising distance is calculated using the multiplied actual mileage.

  If the travel distance is less than the threshold and the travel time is greater than or equal to the threshold, it means that the travel time is long even though the travel distance is small. This is considered to be a long time traveling in the city or a long time stopped due to traffic congestion. In such a case, it can be assumed that the actual fuel consumption tends to decrease because the time consumed by the air conditioner increases with respect to the travel distance. Therefore, there is a high possibility that the actual fuel consumption is calculated too small. Therefore, the actual fuel consumption can be corrected to a more accurate actual fuel consumption by multiplying the actual fuel consumption by a coefficient larger than 1. By calculating the cruising distance based on the corrected actual fuel consumption, a more accurate cruising distance can be calculated.

  The correction mode C is a correction mode when the travel distance is equal to or greater than the threshold and the travel time is less than the threshold. In this case, the actual fuel consumption is multiplied by a coefficient smaller than 1, and the cruising distance is calculated using the multiplied actual fuel consumption.

  When the travel distance is equal to or greater than the threshold and the travel time is less than the threshold, it means that the travel time is short although the travel distance is long. This may be the case when the vehicle is traveling at a high speed. When traveling at high speed, the consumption time of an air conditioner or the like is short relative to the travel distance, and the vehicle is often traveling at a good fuel efficiency point, so it can be assumed that the actual fuel efficiency tends to improve. Therefore, there is a high possibility that the actual fuel consumption is excessively calculated. Therefore, the actual fuel consumption can be corrected to a more accurate actual fuel consumption by multiplying the actual fuel consumption by a coefficient smaller than 1. By calculating the cruising distance based on the corrected actual fuel consumption, a more accurate cruising distance can be calculated.

  The coefficients of the correction mode B and the correction mode C are set as follows. First, the average vehicle speed is set for the correction mode B and the correction mode C. For example, with respect to the correction mode B, since traveling in a traffic jam is assumed, the average vehicle speed is set to 10 km / h. About the correction | amendment aspect C, since driving | running | working on a highway is assumed, 80 km / h is set as an average vehicle speed. The vehicle actually travels a predetermined distance for a predetermined time at these average vehicle speeds, and the fuel consumption at that time is measured. The ratio of the actually measured fuel consumption to the predetermined fuel consumption is calculated, and the coefficient can be determined from this ratio.

  Further, the cruising distance calculation unit 26 is not limited to a configuration that calculates one cruising distance for one traveling mode. For one travel mode, the cruising distance may be calculated as a range between the shortest cruising distance and the longest cruising distance. The case where a cruising distance is calculated as such a range is demonstrated using FIG. FIG. 3 is a graph showing the relationship between the accumulated travel distance and the instantaneous fuel consumption. The accumulated travel distance is obtained by integrating the travel distance for each travel mode. The instantaneous fuel consumption is an instantaneous value of actual fuel consumption calculated in the eco mode. The graph shown in FIG. 3 represents changes in actual fuel consumption at a certain travel distance.

  The cruising distance calculation unit 26 divides the travel distance by a predetermined section. Then, a section with the best power consumption is searched, and the section is set as the first section. In addition, the section with the lowest power consumption is searched and the section is set as the second section. Note that the fuel consumption in one section is obtained by averaging the fuel consumption in the section. The fuel consumption in the first section is the first fuel consumption, and the fuel consumption in the second section is the second fuel consumption.

  The cruising distance calculation unit 26 calculates the shortest cruising distance (first cruising distance) from the first fuel consumption and the fuel remaining amount, and calculates the longest cruising distance (second cruising distance) from the second fuel consumption and the fuel remaining amount. Although the lock mode and the power mode are not particularly illustrated, the shortest cruising distance and the longest cruising distance can be calculated for these modes by performing the same calculation.

  FIG. 4 illustrates a display mode of the cruising distance calculated as described above. FIG. 4 shows a display screen of the touch panel display 3 provided in the vehicle 1.

  The cruising distance calculation device 20 displays a travel mode selection screen on the touch panel display 3. The travel mode selection screen is a screen that displays a travel mode in which the vehicle 1 can travel and allows the driver to select any one of a plurality of travel modes displayed.

  The cruising distance calculation device 20 displays the currently selected travel mode on the travel mode selection screen. As the currently selected travel mode, “eco mode” is displayed in FIG. The cruising distance calculation device 20 displays the cruising distance in the eco mode. In the figure, “120 km” is displayed. Further, the shortest cruising distance (for example, 120 km) and the longest cruising distance (for example, 130 km) may be displayed. Here, “120 km to 130 km” is displayed as parentheses.

  On the other hand, the cruising distance calculation unit 26 displays the cruising distance in the lock mode, which is another driving mode, and the cruising distance in the power mode as a difference from the cruising distance in the eco mode. For example, when the cruising distance in the lock mode is 110 km, the difference from 120 km is taken and “−10 km” is displayed. Similarly, “−15 km” is displayed for the power mode.

  Thus, on the travel mode selection screen, the cruising distance in the currently selected travel mode is displayed as it is, and the cruising distance in the other travel mode is displayed as a difference from the cruising distance of the currently selected travel mode. . Accordingly, it is possible to provide the driver with information on how much the cruising distance changes when switching to another travel mode as compared to the currently selected travel mode. The driver can appropriately select the travel mode based on such information. In addition, since the shortest cruising distance and longest cruising distance are displayed together, it gives the driver a sense of security that they can travel only the shortest cruising distance at the worst. It is possible to provide information services that increase driving enjoyment such as

  A processing flow of the cruising distance calculation apparatus having the above configuration will be described. FIG. 5 is a flowchart of the cruising distance calculation device 20.

  The cruising distance calculation device 20 calculates the fuel consumption of the currently selected travel mode (step S1). Here, it is assumed that the eco mode is selected. In this case, the fuel consumption calculation unit 24 calculates the actual fuel consumption based on the travel distance in the eco mode calculated by the travel distance measurement unit 22 and the fuel consumption in the eco mode.

  The cruising distance calculation device 20 stores the calculated actual fuel consumption in the storage device (step S2). The actual fuel consumption stored in the storage device is read to calculate the cruising distance.

  The cruising distance calculation device 20 determines whether the driver has performed an operation for calling the travel mode selection screen using the touch panel display 3 (step S3). When the operation is performed (step S3: Yes), a travel mode selection screen is displayed (step S4). The flow of processing when displaying the travel mode selection screen will be described later. Moreover, when the said operation is not made (step S3: No), a process is complete | finished.

  The cruising distance calculation device 20 determines whether the driver has changed the travel mode using the touch panel display 3 (step S5). When it is determined that the driver has changed the travel mode (step S5: Yes), the mode is switched to the selected travel mode (step S6). For example, when an operation for changing to the power mode is performed, the cruising distance calculation device 20 (travel mode control unit 21) switches the travel mode to the power mode. If the travel mode has not been changed (step S5: No), the process ends.

  Such processing of Step S1 to Step S6 is performed every time a predetermined distance or a predetermined time elapses while the vehicle 1 is operating (between the ignition switch is turned on and turned off). To be executed. By such processing, the fuel consumption, travel distance, and travel time of the currently selected travel mode are updated. If the travel mode is changed, the changed travel mode becomes a new “currently selected travel mode”, and the fuel consumption, travel distance, and travel time in the new travel mode are updated. In this way, the fuel consumption, the travel distance, and the travel time are updated for each travel mode, and are used for the calculation of the cruising distance later.

  Next, the flow of processing for displaying the cruising distance will be described with reference to FIG. FIG. 6 is a flow of processing for displaying a travel mode selection screen.

  As shown in FIG. 6, when the travel mode selection screen is displayed (step S4 in FIG. 5), the cruising distance calculation device 20 calculates the cruising distance for each travel mode (step S7). This calculation is performed by the fuel consumption calculation unit 24 based on the fuel consumption stored for each travel mode and the travel distance for each travel mode. The cruising distance calculation flow will be described later.

  Next, the cruising distance calculation device 20 displays the current travel mode and the cruising distance (step S8). If the current travel mode is the eco mode and the cruising distance in the eco mode is 120 km, the display is as shown in FIG.

  Next, the cruising distance calculation device 20 displays a difference between the cruising distance and a travel mode other than the current travel mode (step S9). If the current travel mode is the eco mode, the other travel modes are the lock mode and the power mode. These lock modes and power modes are displayed as characters. Further, the cruising distances of these travel modes are displayed as a difference from the cruising distance of the eco mode that is the current travel mode. Specifically, it is displayed as shown in FIG.

  Next, a processing flow for calculating the cruising distance will be described with reference to FIG. FIG. 7 is a flow of processing for calculating a cruising distance.

  When calculating the cruising distance for each travel mode (step S7 in FIG. 6), the cruising distance calculation device 20 reads the fuel consumption for each travel mode (step S10). For all travel modes, it is determined whether or not to correct the fuel consumption as follows, the fuel consumption is corrected based on the determination result, and the cruising distance is calculated. Specifically, when the travel distance is equal to or greater than the threshold (step S11: Yes) and the travel time is equal to or greater than the threshold (step S12: Yes), the cruising distance is calculated based on the actual fuel consumption without correction. It performs (step S13).

  When the travel distance is less than the threshold value (step S11: No) and the travel time is less than the threshold value (step S14: No), the correction mode A is corrected (step S15). That is, the cruising distance is calculated using a predetermined fuel consumption predetermined for each travel mode (step S13).

  When the travel distance is less than the threshold value (step S11: No) and the travel time is equal to or greater than the threshold value (step S14: Yes), the correction mode B is corrected (step S16). That is, the cruising distance is calculated using the actual fuel consumption multiplied by a coefficient larger than 1 (step S13).

  When the travel distance is equal to or greater than the threshold (step S11: Yes) and the travel time is less than the threshold (step S12: No), the correction mode C is corrected (step S17). That is, the cruising distance is calculated using the actual fuel consumption multiplied by a coefficient smaller than 1 (step S13).

  As described above, according to the cruising distance calculation device 20 according to the present embodiment, when the travel distance is short or when the travel time is short, the actual fuel consumption is multiplied by a coefficient, so that the correction is performed more accurately. Real fuel economy can be obtained. And since the cruising distance is calculated using such actual fuel consumption, a more accurate cruising distance can be calculated and presented to the driver.

  According to the cruising distance calculation device 20 according to the present embodiment, for a travel mode in which the travel distance is less than a predetermined threshold and the travel time is greater than or equal to the predetermined threshold, the coefficient greater than 1 is multiplied by the actual fuel consumption for correction. To do. As a result, when the time of traveling in the city is long or the time of stopping due to traffic congestion is long, the actual fuel consumption calculated to be too small is corrected to an appropriate value, and a more accurate cruising distance is calculated. Can be displayed.

  According to the cruising distance calculation device 20 according to the present embodiment, for a travel mode in which the travel distance is greater than or equal to a predetermined threshold and the travel time is less than the predetermined threshold, the coefficient less than 1 is multiplied by the actual fuel consumption to correct. To do. As a result, when the vehicle is traveling at high speed, the excessively calculated actual fuel consumption can be corrected to an appropriate value, and a more accurate cruising distance can be calculated and displayed.

  According to the cruising distance calculation device 20 according to the present embodiment, the travel distance is classified for each travel mode, the first section and the second section are specified, and the first fuel consumption and the second fuel consumption are calculated. Then, the shortest cruising distance and the longest cruising distance are calculated and displayed using these first fuel consumption and second fuel consumption. This gives the driver a sense of security that the driver can travel only the shortest cruising distance at worst, and an information service that increases the enjoyment of driving, such as knowing that you can run the longest cruising distance if you devise a driving method. Can be provided.

  According to the cruising distance calculation device 20 according to the present embodiment, the cruising distance is displayed as it is for the selected travel mode, and the cruising distance in the other travel modes is displayed as a difference from the former cruising distance. Accordingly, it is possible to provide the driver with information on how much the cruising distance changes when switching to another travel mode as compared to the currently selected travel mode.

<Other embodiments>
As mentioned above, although one embodiment of the present invention has been described, of course, the present invention is not limited to the above-described embodiment, and addition, omission, replacement, etc., of a configuration is possible without departing from the spirit of the present invention. And other changes are possible.

  In the first embodiment, the eco mode, the lock mode, and the power mode are exemplified as the travel mode, but the present invention is not limited to this. The present invention can be applied as long as the driving mode can be selected by the driver.

  In Embodiment 1, although illustrated about the vehicle 1 provided with the engine 2, it is not limited to this. For example, a vehicle having only a battery as a drive source can be applied as long as it has a plurality of travel modes. Thus, in the case of a vehicle that uses electric power as a drive source, the fuel consumption of the first embodiment may be replaced with the electric cost. Even in the case of a hybrid vehicle using a battery and an internal combustion engine as a drive source, it can be applied if it has a plurality of travel modes. In the case of a vehicle that uses electric power and fuel as a drive source, the cruising distance may be calculated using both fuel consumption and electric cost.

  The display of the cruising distance on the touch panel display 3 is displayed when the driver calls the travel mode selection screen as shown in FIG. 4, but is not limited thereto. For example, the cruising distance may be displayed regardless of the driver's operation.

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 3 ... Touch-panel display (display means), 20 ... Cruising distance calculation apparatus, 21 ... Travel mode control part, 22 ... Travel distance measurement part (measurement means), 23 ... Travel time measurement part (measurement means), 24 ... Fuel consumption calculation unit (fuel consumption / electricity calculation means), 25 ... Fuel remaining amount calculation part (cruising distance calculation means), 26 ... Cruising distance calculation part (cruising distance calculation means)

Claims (5)

A cruising distance calculation device that calculates a cruising distance of a vehicle that has a plurality of traveling modes and that travels by driving a drive source with fuel or electric power,
Measuring means for measuring the travel distance and travel time for each travel mode;
Fuel consumption / electricity cost calculating means for calculating fuel consumption or power consumption based on the travel distance for each of the travel modes;
Cruising distance calculation means for calculating a cruising distance based on the fuel consumption or electricity cost calculated by the fuel consumption / electricity calculation means, and the remaining amount of fuel or the remaining amount of battery;
Display means for displaying a cruising distance for each of the travel modes calculated by the cruising distance calculating means,
The cruising distance calculating means corrects the travel mode in which at least one of the travel distance or the travel time is less than a predetermined threshold value by multiplying the fuel efficiency or the power consumption by a predetermined coefficient. Cruising range calculation device. The cruising distance calculation device according to claim 1,
The cruising distance calculation means calculates the coefficient greater than 1 by the fuel consumption / electricity cost calculation means for the travel mode in which the travel distance is less than a predetermined threshold and the travel time is not less than a predetermined threshold. A cruising distance calculation device that corrects the fuel consumption or the electricity cost. In the cruising distance calculation device according to claim 1 or 2,
The cruising distance calculation means calculates the coefficient smaller than 1 by the fuel consumption / electricity cost calculation means for the travel mode in which the travel distance is equal to or greater than a predetermined threshold and the travel time is less than the predetermined threshold. A cruising distance calculation device that corrects the fuel consumption or the electricity cost. In the cruising distance calculation device according to any one of claims 1 to 3,
The fuel consumption / electricity cost calculation means divides the travel distance for each of the travel modes to identify the first section with the best fuel consumption or the power consumption and the second section with the worst, and the first section in the first section. Calculating the fuel consumption or the first electricity consumption and the second fuel consumption or the second electricity consumption in the second section;
The cruising distance calculating means calculates a first cruising distance from the first fuel consumption or the first power consumption in the first section and the fuel remaining amount or the battery remaining amount for each traveling mode, and Calculating a second cruising distance from the second fuel consumption or the second electricity consumption in two sections and the fuel remaining amount or the battery remaining amount;
The display means displays the first cruising distance and the second cruising distance. A cruising distance calculation device. In the cruising distance calculation device according to any one of claims 1 to 4,
The display means displays the cruising distance calculated for the currently selected driving mode, and the cruising distance calculated for the currently selected driving mode for the cruising distance of the driving mode that is not selected. A cruising distance calculation device characterized by being displayed as a difference from the cruising distance.

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