JP5630356B2 - Display device - Google Patents

Description

  The present invention provides an electric vehicle using a battery as a power source, at least in order to make a driver determine whether or not to start running as it is before starting running or at the beginning of running, or whether charging is necessary. The present invention relates to a display device that displays a remaining battery amount (also referred to as a residual energy amount or a residual power amount) of a battery at a point in time and a travelable distance obtained from a use state of an on-board electric load.

  Conventionally, an information processing apparatus applicable to the car navigation apparatus described in Patent Document 1 is known. This information processing apparatus has the following configuration in order to solve the problem of guiding the charging station more appropriately.

  Based on the map information, a charging station that is within the travelable range of the vehicle is searched. The estimated arrival time at each charging station found is calculated. Based on the expected charging completion time, the position of the charging stand is displayed in a distinguished manner. Further, the remaining travel distance is obtained from the remaining battery amount of the battery of the electric vehicle and the actual travel distance (past data) from the time when the battery is fully charged, and the obtained remaining travel distance is displayed.

  If the charging station is not searched within the travelable range, the travelable distance calculation means further calculates the travelable distance when the power consumption of the vehicle is suppressed. Then, it is possible to cause the charging station search means to further search for charging stations that are within a travelable range with the travelable distance when the power consumption of the vehicle is suppressed.

  Specifically, the power mode control unit can set the power suppression mode. In this mode, the power consumed outside the travel of the vehicle is suppressed as much as possible. For example, the power supply of an electronic component that does not contribute to the running of the vehicle, such as an air conditioner or a car audio device, is turned off to stop supplying power.

  The travelable distance calculation unit calculates the distance that the vehicle can travel when the power suppression mode is set based on the current remaining battery level. This travelable distance can be obtained by remaining battery capacity × average power consumption × power cost improvement coefficient. The power consumption improvement coefficient is a coefficient indicating a rate at which the average power consumption of the vehicle is improved by setting the power suppression mode, and is set in advance by a vehicle manufacturer or a driver, for example.

  Next, conventionally, Patent Document 2 discloses a power supply control device for an electric vehicle that includes a first electrical equipment that is essential for traveling and a second electrical equipment that is not essential for traveling. This makes it possible to travel within the target total travel distance determined by the full charge of the battery regardless of the state in which the automobile travels. For this purpose, the following configuration is provided.

  The remaining battery amount of the battery is detected by the remaining power detection device, and the actual total travel distance from the time when the battery is fully charged is detected by the travel distance detection device. Then, the remaining travel distance (= target total travel distance−actual total travel distance) is calculated by the remaining travel distance calculation device.

  Next, the power consumption estimation device estimates the amount of power consumed by the travel motor and the first and second electrical equipment while traveling the remaining travel distance. When the estimated estimated power consumption amount is larger than the remaining battery amount, the power supply prohibiting device prohibits power supply to the second electrical equipment. Further, the remaining travelable distance is displayed on a display means provided in the passenger compartment.

JP 2010-175492 A JP-A-7-31008

  In some conventional electric vehicles, the remaining battery amount or the travelable distance based on the remaining battery amount is displayed on the display inside or outside the instrument. The distance calculated only in relation to the speed is displayed as the travelable distance.

  Therefore, due to changes in the driving situation after the start of driving and power consumption due to the use of in-vehicle devices such as air conditioners and lighting of headlamps, the possible driving distance is suddenly displayed during driving, causing the driver to panic. Or may be anxious.

  In the worst case, the instrument is displaying normally, such as running out of charge before it reaches the destination, making it impossible to travel, but it is the greatest concern for the driver. There was a drawback that caused the state of not being able to achieve the purpose of “arriving at the destination”.

  On the other hand, according to the technique disclosed in Patent Document 1, the travelable distance when the power consumption of the vehicle is suppressed can be calculated in order to guide the charging station while traveling. Moreover, it can set to electric power suppression mode.

  In this power suppression mode, the power supply of electronic components that do not contribute to the running of the vehicle, such as air conditioners and car audio devices, is turned off and the supply of power is stopped. Then, the travelable distance when the power suppression mode is set is calculated. However, this Patent Document 1 is only for the purpose of searching for a charging station that is traveling, and an accurate display cannot be obtained at a relatively early stage of departure toward the destination.

  In Patent Document 2, an actual total travel distance from the time when the battery is fully charged is detected by a travel distance detection device, and a remaining travel distance is calculated by a remaining travel distance calculation device. Then, the power consumed by the travel motor and the first and second electrical equipment is estimated while traveling the remaining travel distance. When the estimated power consumption is larger than the remaining battery power, the power supply prohibiting device The power supply to the second electrical equipment is prohibited.

  Also in this patent document 2, an accurate display is not obtained at the initial stage of starting at the destination. In addition, if the power supply to the electrical equipment is forcibly prohibited during traveling, it may be considered that the sick person or the like may be adversely affected due to, for example, the stop of the air conditioner.

  The present invention has been made paying attention to such problems existing in the prior art, and its purpose is to prevent the electric vehicle from being charged or running out of charge during traveling. Therefore, an object of the present invention is to provide a display device that can perform an appropriate display at the initial stage of running.

  Descriptions of patent documents listed as prior art can be introduced or incorporated by reference as explanations of technical elements described in this specification.

In order to achieve the above object, the present invention employs the following technical means. That is, according to the first aspect of the present invention, there is provided a display device that calculates and displays the distance that the vehicle can travel by consuming the electric power of the battery in the vehicle with a plurality of electrical components, the remaining battery amount of the battery being The worst battery consumption in which all of the predetermined plurality of electrical components are in an ON state with respect to the means for obtaining, the means for storing the traveling data of the vehicle, and the predetermined predetermined electrical components among the plurality of electrical components A full load status calculation means for calculating a full load travelable distance based on the power consumption information associated with the situation , the remaining battery amount, and the travel data; and a plurality of predetermined electrical components. Power consumption information associated with the usage status of a standard electrical component load when there are electrical components preset in the OFF state and electrical components preset in the ON state. Battery level, driving data and Based on are characterized and the standard status calculating means for calculating a standard DTE, and the standard travelable distance calculated, the calculated further comprising a display for displaying a full load traveling range.

According to the present invention, the predetermined plurality of electrical components of the means for obtaining the remaining battery amount of the battery, the means for storing the traveling data of the vehicle, and the predetermined plurality of electrical components among the plurality of electrical components. Full load condition calculation means for calculating the full load travelable distance based on the power consumption information, remaining battery amount, and travel data associated with the worst battery consumption situation in which all of the products are in the ON state Power consumption associated with the usage status of a standard electrical component load when there is an electrical component set in an OFF state and an electrical component set in an ON state in advance for a plurality of predetermined electrical components. A table that displays the standard situation calculation means for calculating the standard travelable distance based on the information, the remaining battery amount, and the travel data, the calculated standard travelable distance, and the calculated full load travelable distance When the driver leaves for the destination, the standard driving distance and full-load driving can be determined according to the remaining battery capacity and the operating state of the electrical components. You can know while comparing the possible distance.

  The invention described in claim 2 is characterized in that travel data that is a record of actual travel of the vehicle within the past predetermined period is used as travel data.

  According to the present invention, as the travel data, travel data that is a record of the actual travel of the vehicle within the predetermined past period is used. Therefore, the standard travelable distance and the full load travel are considered in consideration of the past driving performance of the driver. The possible distance can be calculated.

In the invention according to claim 3, in the indicator , a load state display unit indicating a use state of a standard electrical component load of the electrical component which is a basis for calculating the standard travelable distance, and a load status display A standard travelable distance display unit that displays a standard travelable distance display unit, and a full load travelable distance display unit that is provided adjacent to the standard travelable distance display unit and displays a full load travelable distance unit. It is characterized by providing.

  According to the present invention, since the standard travelable distance and the full load travelable distance are arranged adjacent to each other, it is easy to compare the standard travelable distance and the full load travelable distance. In addition, since a standard travelable distance display unit is provided around the load status display unit, while confirming the operating state of the electrical component that is the basis for calculating the standard travelable distance displayed on the standard travelable distance display unit, The standard driving distance can be read.

  In the invention according to claim 4, the operation signal of the start switch operated at the time of starting the vehicle is led to the full load situation calculating means and the standard situation calculating means, and the standard situation calculating means is based on the operation signal. The travelable distance is calculated, and the full load situation calculation means calculates the full load travelable distance based on the operation signal.

  According to the present invention, when the start switch is operated when driving the vehicle, the standard travelable distance display unit and the full load travelable distance display unit are displayed. In the initial stage of traveling toward the vehicle, it is possible to know the standard travelable distance and the full load travelable distance more reliably.

In the invention according to claim 5, the predetermined plurality of electrical components for which the full load travelable distance is calculated includes at least an air conditioner, a headlight, a heater device, and a wiper ,
The power consumption information associated with the worst battery consumption status is the consumption when the air conditioner is in the ON state, the headlight is in the ON state, the heater device is in the ON state, and the wiper is in the ON state. A plurality of predetermined electrical components that are made up of power information and for which the standard mileage can be calculated include at least an air conditioner, a headlight, a heater device, and a wiper, and use of standard electrical component loads The power consumption information associated with the situation is composed of power consumption information when the air conditioner is in the ON state, the headlight is in the OFF state, the heater device is in the OFF state, and the wiper is in the ON state. It is a feature.

  According to this invention, it is assumed for each electrical component that the air conditioner is in the ON state, the headlight is in the ON state, the heater device is in the ON state, and the vehicle is traveling on the uphill road. It is possible to know the full-load travelable distance in a specific travel situation. On the other hand, a common standard assumed for each electrical component that the air conditioner is ON, the headlight is OFF, the heater is OFF, and the vehicle is traveling on a flat road Can know the standard driving distance in a typical driving situation.

  According to a sixth aspect of the present invention, the heater device comprises at least one of a defogger heater device that removes condensation on a vehicle window and a heating auxiliary heater device that heats the vehicle interior. Yes.

  According to the present invention, even in a vehicle equipped with a defogger heater device or a heating auxiliary heater device, the full-load travelable distance and the standard travelable distance can be calculated more accurately.

According to the seventh aspect of the present invention, the switch means for changing the assumed state of operation in the usage condition of the standard electrical component load of a plurality of predetermined electrical components as a basis for calculating the standard travelable distance. It is characterized by being provided.

  According to this invention, since the operating state of the electrical component that is the basis for calculating the standard travelable distance can be changed, before changing the assumption of the operation of the electrical component and after changing the assumption of the operation of the electrical component It is possible to refer to the change in the calculated standard travelable distance.

  In the invention according to claim 8, the standard travelable distance display unit and the full load travelable distance display unit display the standard travelable distance and the full load travelable distance in a bar graph.

  According to the present invention, since the standard travelable distance and the full load travelable distance are displayed as a bar graph, the standard travelable distance and the full load travelable distance are displayed in a state that is easy to compare at a glance. Can do.

  The invention according to claim 9 is characterized in that the cumulative mileage of the cumulative odometer that displays the cumulative mileage of the vehicle is displayed in a bar graph using an 8-character display segment that displays the number. .

  According to this invention, since the display of the standard travelable distance display unit and the full load travelable distance display unit is configured to also serve as the display segment of the cumulative odometer, a new indicator is provided. Without adding, it can be configured at low cost and installation space can be reduced.

It is a front view of the indicator in the display which shows a 1st embodiment of the present invention. It is a block block diagram of the system in the display apparatus of FIG. It is a flowchart which shows the action | operation in the control apparatus in the system shown in FIG. It is a front view of the indicator in the display apparatus which shows 2nd Embodiment of this invention. It is a front view of the display in the display apparatus which shows 4th Embodiment of this invention. It is explanatory drawing which shows all the display segments of the indicator of FIG.

  A plurality of modes for carrying out the present invention will be described below with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each mode, the other modes described above can be applied to the other parts of the configuration.

  Not only combinations of parts that clearly indicate that the combination is possible in each embodiment, but also the embodiments are partially combined even if they are not clearly specified unless there is a problem with the combination. It is also possible.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a front view of a display in a display device showing a first embodiment of the present invention. FIG. 2 is a block diagram of a system in the display device of FIG. FIG. 3 is a flowchart showing the operation of the control device in the system shown in FIG.

  In an electric vehicle using a battery as a power source, a display device that calculates and displays a distance that can be traveled using the battery in the vehicle is provided in the instrument panel of the vehicle. This display device has the display 1 shown in FIG. 1 which is a multi-display of a liquid crystal display device.

  In the load state display unit 2 on the upper side of FIG. 1, a standard operating state assumed in advance of an electric load (also referred to as an electrical component) of the vehicle is illustrated. This operating state indicates a usage state of the electric load in a standard driving situation (also simply referred to as a situation) that is predetermined for each electrical component. Then, based on the displayed standard use state, the standard travelable distance is calculated in the control device 3 including the in-instrument MPU of FIG.

  Further, the control device 3 assumes a use state of each electrical component in a predetermined state in which the total power consumption is larger than the total power consumption of each electrical component in a standard driving situation, Calculate the full load travelable distance. The calculated standard travelable distance and the calculated full load travelable distance are displayed side by side as bar graphs 5 and 6 in FIG.

  In FIG. 1, the standard is a bar graph 5 representing a standard travelable distance, and the full load is a bar graph 6 representing a full load travelable distance. In addition, the air conditioner ON in the load state display unit 2 indicates that the standard travelable distance is calculated in an operating state in which the air conditioner is operating.

  Further, the headlight OFF indicates that the standard travelable distance is calculated in a situation where the headlamp is not turned on. Next, RrDEF OFF indicates that the standard travelable distance is calculated in a non-operating state in which the rear window defogger (also referred to as a rear window glass dew condensation removal heater or a defogger heater device) is not energized.

  Further, the wiper ON indicates that the standard travelable distance is calculated in a non-operating state in which the wiper device for wiping the front window glass does not operate. Further, the flat road indicates that the standard travelable distance is calculated in a standard travel situation in which the vehicle travels on a flat road that does not climb an uphill road.

  In the block configuration diagram of FIG. 2, an instrument microprocessor unit (MPU) mounted on the back side of the instrument panel constitutes the control device 3 of the present invention. The control device 3 is supplied with a signal from an ignition switch (IGSW) that constitutes the start switch 7 of the electric vehicle.

  In addition, a display 1 including a multi-display play of the above-described liquid crystal display device is connected to the control device 3. Furthermore, a battery remaining amount sensor 9 and a battery temperature sensor 10 for determining the remaining battery amount of the battery are connected to the control device 3 via the control unit 8.

  Thereby, the control apparatus 3 grasps | ascertains the remaining battery amount of a battery sequentially, and updates the remaining battery amount data. In addition, a control signal for controlling the operation of the air conditioner is input to the control device 3 directly from an air conditioner switch (also referred to as A / CSW) 11 in an air conditioner control panel (not shown) or from an air conditioner control device (not shown). .

  In addition, a control signal from a headlight switch (SW) 12 that controls the operation of the headlamp is input to the control device 3 directly from the headlight switch 12 or from a headlight control device (not shown).

  Further, a control signal from the RrDEF switch (SW) 13 for controlling the operation of the rear window defogger is inputted to the control device 3 directly from the RrDEF switch 13 or from a rear window defogger control device (not shown). Yes.

  Further, a control signal from a wiper switch (SW) 14 for controlling the operation of the wiper device is input to the control device 3 directly from the wiper switch 14 or from a control device of a wiper device (not shown).

  Furthermore, as is well known, a vehicle speed signal from the vehicle speed sensor 15 is input to the control device 3 in order to operate the speedometer. This vehicle speed signal is used for measuring a travel distance and storing travel data to be described later, and also for detecting a stop of the vehicle.

  Next, the operation of the first embodiment configured as described above will be described. FIG. 3 is a flowchart showing a part of the operation in the control device 3 shown in FIG. Control is started when the vehicle start switch is turned ON (IGON).

  In step S <b> 21, the control device 3 calculates the remaining battery amount (also referred to as remaining battery level) of the battery from the information of the remaining battery level sensor 9 and the battery temperature sensor 10 in FIG. 2. The calculated value is stored in a RAM (not shown) in the control device 3.

  Next, in step S <b> 22, it is determined whether or not traveling data A for the past year is stored in the memory in the control device 3. If it is stored, it is defined as driving data A and read.

  If the travel data A is accumulated, the process proceeds to step S23, and the standard travelable distance is calculated based on the travel data A and the use state of the electrical component displayed on the load state display unit 2 in FIG. .

  In the first embodiment, as shown in the load state display unit 2 in FIG. 1, the air conditioner is activated, the headlamp is turned off, the rear window defogger is not activated, the wiper device is activated, and the vehicle travels on a flat road. The driving distance is calculated assuming a standard situation (standard driving situation) involving the operation of the driving motor.

  Specifically, since the average mileage per unit remaining battery amount for the past year is stored in the memory as the running data A, the current remaining battery is always added to the value of the constantly updated data. The basic travelable distance is calculated by multiplying the amount. Further, assuming that the assumed traveling speed is 30 km / hour, the time required for traveling is calculated. You may make it display this time.

  Next, the standard conditions common to each electrical component, such as the air conditioner is activated, the headlamp is turned off, the rear window defogger is deactivated, the wiper device is activated, and the vehicle travels on a flat road within the basic travel distance Multiply by a coefficient corresponding to the standard travelable distance. This coefficient corresponds to the power consumption information of each electrical component, and is represented as an air conditioner coefficient Ka, a headlamp coefficient Kh, a defogger coefficient Kd, a wiper coefficient Kw, and a flat road coefficient Kf, respectively.

  In this case, the air conditioner coefficient Ka and the wiper coefficient Kw are set to values larger than 1 in accordance with the display of the load state display unit 2 in FIG. 1, and the headlamp coefficient Kh and the defogger coefficient Kd are flat. The road coefficient Kf is set to a value smaller than 1. That is, each coefficient is selected from the coefficient storage area in the memory in accordance with the activation or non-operation of each predetermined electric load or the lightness of the load on the traveling motor depending on the assumed road condition.

  Next, in step S24 of FIG. 3, the full load travelable distance is calculated based on the accumulated travel data A and the full load situation. In the first embodiment, calculation under full load conditions is performed in which the air conditioner is activated, the headlamp is lit, the rear window defogger is activated, the wiper device is activated, and the vehicle travels on an uphill road.

  Specifically, since the average travel distance (running data A) per unit remaining battery amount in the past year is stored in the memory, the current remaining battery amount is added to the value of the sequentially updated data. Is multiplied to calculate the basic travelable distance.

  Next, multiply the basic travelable distance by the coefficient corresponding to the full load situation: the air conditioner is activated, the headlights are lit, the rear window defogger is activated, the wiper device is activated, and the vehicle is traveling uphill. The loadable travel distance is calculated. In this case, all of the air conditioner coefficient Ka, the headlamp coefficient Kh, the wiper coefficient Kw, the defogger coefficient Kd, and the uphill road coefficient Ku are set to values larger than one.

  When the uphill road coefficient Ku is set to a value greater than 1, the full load travelable distance is determined in consideration of the electric load consumed by the travel motor when the road to be traveled is an uphill road. Calculated.

  Therefore, even when traveling on an uphill road to the destination, a more accurate full load travelable distance can be calculated. Next, in step S25, the calculated standard travelable distance and full load travelable distance are displayed as bar graphs 5 and 6 in the display 1 of FIG.

  If it is determined in step S22 in FIG. 3 that there is no travel data for the past year, there is a large error if the travelable distance is calculated from the accumulated data up to the middle, and the process proceeds to step S26.

  In step S26, the average mileage per unit remaining battery amount recommended by the vehicle manufacturer is read from the memory, and the value of the recommended data B (default data) recommended by the read vehicle manufacturer is added to the current remaining battery. The basic travelable distance is calculated by multiplying the amount.

  Next, multiply the basic travelable distance by the coefficient corresponding to the standard situation where the air conditioner is activated, the headlights are turned off, the rear window defogger is deactivated, the wiper device is activated, and the vehicle travels on a flat road. Calculate the travelable distance. These coefficients are expressed as an air conditioner coefficient Ka, a headlamp coefficient Kh, a defogger coefficient Kd, a wiper coefficient Kw, and a flat road coefficient Kf, respectively.

  In this case, the air conditioner coefficient Ka and the wiper coefficient Kw constituting the power consumption information are set to values larger than 1, and the headlamp coefficient Kh, the defogger coefficient Kd, and the flat road coefficient Kf are values smaller than 1. It is said that. That is, each coefficient is selected from the coefficient storage area in the memory according to the operation or non-operation of each electric load, or the lightness of the load of the traveling motor on the road.

  Next, in step S27 of FIG. 3, the air conditioner is activated, the headlamps are lit, the rear window defogger is activated, the wiper device is activated, and the uphill road is operated at the basic travelable distance obtained using the recommended data B. Multiply by a coefficient corresponding to the full load situation of traveling to calculate the full load travelable distance. In this case, all of the air conditioner coefficient Ka, the headlamp coefficient Kh, the wiper coefficient Kw, the defogger coefficient Kd, and the uphill road coefficient Ku are set to values larger than 1.

  When the uphill road coefficient Ku is set to a value greater than 1, the full load travelable distance is determined in consideration of the electric load consumed by the travel motor when the road to be traveled is an uphill road. Thus, even when traveling on the uphill road to the destination, a more accurate full load travelable distance can be calculated. Next, in step S28, the calculated standard travelable distance and full load travelable distance are displayed as bar graphs 5 and 6 on the display 1 in FIG.

  These series of operations are interlocked with the turning-on operation (ON operation) of the start switch 7 of FIG. 1 (generally without an ignition device but called an IGSW for short) that is turned on when the electric vehicle is operated. Done. Therefore, the driver pays attention to the display content of the display 1 at an initial stage where the driver starts traveling toward the destination.

  Further, the display content of the display device 1 accompanying the above series of operations is continuously displayed for a predetermined time after the start switch 7 is turned on. Or it continues until the signal from the vehicle speed sensor 15 (FIG. 2) of a vehicle exceeds a predetermined vehicle speed. At this time, in order to draw the driver's attention, a part of the display screen of the display 1, for example, the display of the load state display unit 2 may be blinked.

  As described above, in the first embodiment, basically, the standard travelable distance and the full load travelable distance are calculated using the remaining battery amount of the battery and the travel data A within the past predetermined period. The standard travelable distance and the full load travelable distance can be calculated in consideration of the past driving performance of the driver.

  In addition, while displaying the standard travelable distance and the full load travelable distance, the operating state of each electrical component that is the basis for calculating the standard travelable distance is displayed on the load state display unit 2 (FIG. 1). Therefore, it is possible to accurately grasp the state of the vehicle in light of the assumed use state of the electrical load (electrical component) when traveling and the planned travel distance to the destination.

  Specifically, when the planned mileage exceeds the standard mileage, the shortage of the mileage while taking into account the assumed usage of the electrical load (electrical equipment) that is the basis for calculating the standard mileage Can be recognized.

  In addition, when the planned travel distance is between the standard travelable distance and the full-load travelable distance, the assumed usage state of the electrical load (electrical equipment) that is the basis for calculating the standard travelable distance and the full-load travelable distance It is possible to recognize that the travelable distance is insufficient while recognizing the difference from the assumed use state of the electrical load (electrical component) that is the basis for calculating the vehicle load.

  Further, if the planned travel distance to be traveled is shorter than the full load travelable distance, the driver can determine that the current remaining battery amount can be sufficiently traveled. On the other hand, if the planned mileage is longer than the total load mileage, select the mileage (distance It is possible to consider how to use the electric load (electrical components) of the vehicle, change, detour of the uphill road, and further, whether or not charging is necessary.

  In the first embodiment, the standard situation calculation means and the full load situation calculation means mainly use the remaining battery amount of the battery and the running data of the vehicle within the past predetermined period, respectively. The possible distance is calculated.

  According to this, since the standard travelable distance and the full load travelable distance are calculated using the remaining battery amount of the battery and the travel data A within a predetermined period in the past, the past driving performance of the driver is calculated. In consideration of the above, the standard travelable distance and the full load travelable distance can be calculated.

  Further, the display 1 in FIG. 1 is provided in the vicinity of the load state display unit 2 and a load state display unit 2 that shows the operating state of the electric load in the standard state that is the basis for calculating the standard travelable distance. A standard travelable distance display unit 20 that displays the standard travelable distance, and a full load travelable distance display unit 21 that is displayed adjacent to the standard travelable distance display unit 20 and displays the full-load travelable distance. . The standard travelable distance display unit 20 and the full-load travelable distance display unit 21 can display numbers in addition to the display by the bar bluff.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the following embodiments, the same components as those in the first embodiment described above are denoted by the same reference numerals, description thereof will be omitted, and different configurations and features will be described. FIG. 4 is a front view of a display in the travelable distance calculation display device showing the second embodiment of the present invention.

  As shown in FIG. 4, by providing push button switches 25a, 25b, 25c, 25d, and 25e (generally 25) for switching the assumption of the usage state of each electric load in the vicinity or inside of the display 1, the standard By adjusting the usage state of the load, which is the basis for calculating the travelable distance, to the travel state where the travel is actually planned, the standard travelable distance closer to the actual use is displayed.

  For example, as described above, in a certain common situation (the situation in which the electric component that is the basis for calculating the standard travelable distance is running in the rain on a flat road in the daytime), the air conditioner operates, the headlamp Load conditions are set as defaults: is off, the rear window defogger is not activated, the wiper device is activated, and the vehicle is traveling on a flat road.

  However, considering the destination, weather forecast, and road type, the push button switch 25 is operated, the air conditioner is activated, the headlamp is not lit, the rear window defogger is not activated, and the wiper device is not activated. It is also possible to change the default load state to the rewritten load state as in operation and uphill road, and calculate the standard travelable distance based on the rewritten load state.

  Even if the load state is changed in this way, if the predetermined time elapses after the start switch 7 (similar to FIG. 2) is turned off, the continuity of the travel route is lost and the rewritten load state is changed to the original default state. The load is restored.

  As described above, in the second embodiment, the push button switch 25 serving as a switch unit for selecting a predetermined standard load type is provided, and the load selected by the switch unit is used. Based on the rewrite load state, the standard situation calculation means calculates the standard travelable distance.

  In the second embodiment, the push button switch employs a switch mechanism that is selected when pressed and released when pressed for the second time. Further, when selected, the push button switch may emit light or may be mechanically pushed to display which electrical load is selected.

  The push button switch constituting the switch means of the present invention may be configured as a touch switch on a liquid crystal screen instead of a mechanical switch. Further, the display of the load state display unit 2 in FIG. 4 may be changed by a liquid crystal display. In this case, the load status display unit 2 changes the display from “wiper ON” to “wiper OFF”, for example.

  As described above, the operation state of the electric load in the standard state displayed on the load state display unit 2 is provided by providing the push button switch 25 that switches the assumption of the state of each electric load in the vicinity of or inside the display unit 1. Can be adjusted to the operating state of the planned use load that is actually planned to be used. Thereby, the standard travelable distance that is closer to actual use is displayed.

  Note that the changed contents may clearly display what has been changed by changing the display of the load state display unit 2. According to this, it is not necessary to make the operation state visible by causing the push button switch 25 to emit light or being mechanically pushed.

  As described above, in the second embodiment, it is assumed that the push button switch 25 serving as a switch unit for selecting the type of electric load in a predetermined standard state is provided, and serves as a basis for calculating the standard travelable distance. The changed standard use state is temporarily changed to the rewritten standard state, and the standard situation calculation means calculates the standard load travelable distance based on the rewritten standard state.

  According to this, since the standard travelable distance can be calculated based on the usage state of the arbitrarily selected electrical load, when the travel distance to the destination is longer than the standard travelable distance, which If the use of the electric load is stopped, it is possible to know whether the destination can be reached with the remaining amount of electricity at that time.

(Third embodiment)
Next, a third embodiment of the present invention will be described. Features different from the above-described embodiment will be described. FIG. 5 is a front view of a display in a display device showing a third embodiment of the present invention. FIG. 6 is an explanatory diagram showing all display segments of the display of FIG.

  In FIG. 5, a cumulative odometer (odometer) is shown that displays the distance traveled numerically by a liquid crystal display or a fluorescent display installed on an instrument panel in the vehicle. Then, by using a part of the 8-shaped display segment 22 of the cumulative odometer, the standard travelable distance display unit 20 and the full load travelable distance display unit 21 are displayed in a bar graph. FIG. 6 shows the arrangement of all display segments 22.

  This cumulative odometer can display the travel distance as an odometer or trip meter by operating a push button switch knob (not shown), and calculate and display the travelable distance by operating a push button switch knob. It also functions as a display device of the display device.

  In FIG. 5, the load state display unit 2 has an air conditioner activated (A-CON ON), a wiper device activated (WIPER ON), a rear window defogger deactivated (RrDEF OFF), and the headlamp turned off ( The standard state of use of the electrical component is set as “LAMP OFF”. AVG is the standard travelable distance display unit 20, and MIN is the full-load travelable distance display unit 21. Each circle represents 20 km.

  In FIG. 5, in AVG, the standard travelable distance is displayed by a bar graph 5 in which five circles are juxtaposed. This indicates that the vehicle can travel 100 km full in the standard situation. In the MIN, the full load travelable distance is displayed by three circles. This indicates that three circles can travel 60 km (20 km × 3) under the full load condition.

(Other embodiments)
The present invention is not limited to the above-described embodiments, and can be modified or expanded as follows. For example, in the first embodiment described above, RrDEF (a heater device for a defogger serving as a rear window defogger) is included as a total electric load. An auxiliary heater device for heating that heats the room with an electric heater may be added.

  In this case, the full load travelable distance is calculated on the condition that at least the operation of the heating auxiliary heater device is performed. In addition, what is necessary is just to determine beforehand whether the operation of the auxiliary heater device for heating is put into the calculation of the standard travelable distance. When the auxiliary heater device for heating is not turned on, “Auxiliary heater OFF” is displayed on the load state display section 2 (FIG. 1).

  Next, a push button switch 25 (such as 25a in FIG. 4) that constitutes a switch means for selecting the type of electric load is used when the indicator 1 is provided inside the front glass of the instrument panel. Similar to the operation switch knob, it is configured as a plurality of rod-like push switches that penetrate the front glass of the instrument panel. However, this switch means may not be in the vicinity of the display 1. For example, it can also be configured by a touch switch displayed in the instrument setting mode on the screen of the navigation device.

  Next, a full-load travelable distance display unit is provided adjacent to the standard travelable distance display unit, and these travelable distance display units are displayed as bar graphs. Or, it may be displayed so that it can be compared with an analog display by a pointer, and when a pointer is used, a plurality of pointers may rotate coaxially.

  The electric vehicle of the present invention includes an electric motorcycle. Further, a method for knowing the state of charge (SOC) of the battery (more precisely, the secondary battery), that is, the remaining battery amount of the battery can be based on various known methods. The configuration disclosed in JP-A-17357 can be used. A temperature sensor that detects the temperature of the battery is not essential. Furthermore, various known methods can be used for calculating the travelable distance.

DESCRIPTION OF SYMBOLS 1 Indicator 2 Load condition display part 3 Control apparatus 5 Bar graph showing standard travelable distance 6 Bar graph showing full load travelable distance 7 Start switch (ignition switch IGSW)
15 Vehicle speed sensor 20 Standard travelable distance display (AVG)
21 Full load travelable distance display (MIN)
22 Display segment of cumulative odometer 25 Push button switch (switch means for selecting virtual use state of electrical load)
S23, S26 Standard situation calculation means S24, S27 Full load situation calculation means

Claims (9)

A display device that calculates and displays the distance that a vehicle can travel by consuming battery power in the vehicle with a plurality of electrical components ,
Means for determining the remaining battery amount of the battery;
Means for storing travel data of the vehicle;
For a predetermined plurality of electrical components among the plurality of electrical components, the power consumption information associated with the worst battery consumption situation in which all of the predetermined plurality of electrical components are in the ON state, and A full load status calculating means for calculating a full load travelable distance based on the remaining battery amount and the travel data;
Use of a standard electrical component load in the case where there are an electrical component preset in the OFF state and an electrical component preset in the ON state for the predetermined plurality of electrical components. Standard situation calculation means for calculating a standard travelable distance based on power consumption information associated with the situation, the remaining battery amount, and the travel data;
A display device comprising: a display that displays the calculated standard travelable distance and the calculated full load travelable distance.   The display device according to claim 1, wherein travel data that is a record of actual travel of the vehicle within a predetermined period in the past is used as the travel data. In the indicator,
A load state display unit that indicates a usage state of the standard electrical component load of the electrical component that is a basis for calculating the standard travelable distance;
A standard travelable distance display unit that is provided around the load state display unit and displays the standard travelable distance;
The display device according to claim 1, further comprising a full load travelable distance display unit that is provided adjacent to the standard travelable distance display unit and displays the full load travelable distance.   An operation signal of a start switch operated at the time of starting the vehicle is guided to the full load situation calculation means and the standard situation calculation means, and the standard situation calculation means determines the standard travelable distance based on the operation signal. 4. The display device according to claim 1, wherein the full load condition calculation unit calculates the full load travelable distance based on the operation signal. 5. The predetermined plurality of electrical components that are targets for calculating the full load travelable distance include at least an air conditioner, a headlight, a heater device, and a wiper ,
The power consumption information associated with the worst battery consumption status is that the air conditioner is in an ON state, the headlight is in an ON state, the heater device is in an ON state, and the wiper is in an ON state. It consists of power consumption information when
The predetermined plurality of electrical components that are targets for calculating the standard travelable distance include at least the air conditioner, the headlight, the heater device, and the wiper.
The power consumption information associated with the usage status of the standard electrical component load is that the air conditioner is in an ON state, the headlight is in an OFF state, the heater device is in an OFF state, and the wiper is ON. The display device according to claim 1, comprising power consumption information in a state .   The said heater apparatus consists of at least any one among the heater apparatus for defoggers which removes the dew condensation of the window of the said vehicle, and the auxiliary heater apparatus for heating which heats the said vehicle interior. Display device. Switch means is provided for changing the assumed state of operation of the predetermined plurality of electrical components used as the basis for calculating the standard travelable distance in the usage status of the standard electrical component load . The display device according to claim 1, wherein the display device is a display device.   The display according to claim 3, wherein the standard travelable distance display unit and the full load travelable distance display unit display the standard travelable distance and the full load travelable distance in a bar graph. apparatus.   9. The display according to claim 8, wherein the bar graph is displayed by using an eight-character display segment for displaying a cumulative mileage of a cumulative odometer for displaying the cumulative mileage of the vehicle. apparatus.

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