JP2014054099A - Cruisible distance display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cruisible distance display device allowing a driver to easily make a travel plan.SOLUTION: A cruisible distance L0 according to a vehicular electric cost Ev (or the latest arithmetic value) and a storage ratio SOC of a battery, a cruisible distance L1 according to the worst vehicular electric cost Ev1 and the storage ratio SOC of the battery, and a cruisible distance L2 according to the best vehicular electric cost Ev2 and the storage ratio SOC of the battery are calculated (at S160 to S190), and these cruisible distances L0, L1 and L2 are displayed in a display unit 70 (at S200). As a result, the driver can be informed of not only the cruisible distance L0 at the present using state of the vehicle but also the minimum cruisible distance L1 and the maximum cruisible distance L2 considering the used state of the vehicle till the present time. As a result, the driver can easily make a running plan.

Description

  The present invention relates to a cruising range display device, and in particular, is mounted on an electric vehicle including a traveling motor and a battery that exchanges electric power with the motor, and is capable of cruising for displaying a cruising range of the vehicle on a display unit. The present invention relates to a distance display device.

  Conventionally, as this type of cruising range display device, which is mounted on an electric vehicle, based on the storage capacity of the storage battery at the current time, the predetermined time travel distance, and the predetermined time power consumption, There has been proposed one that calculates the remaining travelable distances in the suburban travel mode and the high-speed travel mode, and switches the display in this order together with the mode switching (see, for example, Patent Document 1).

JP-A-6-189402

  In an electric vehicle equipped with such a cruising range display device, it is difficult to accurately estimate the cruising range because the vehicle power consumption is likely to change and the cruising range is likely to change depending on the usage state of the vehicle. is there. Even if the remaining travelable distance (travelable distance) in each travel mode is calculated as in the above-mentioned cruising range display device, it cannot be said that the use state of the vehicle is reflected in modes other than the current travel mode. For this reason, there is a possibility that the driver cannot make sufficient reference for making a travel plan.

  The cruising range display device of the present invention is mainly intended to make it easier for the driver to make a travel plan.

  The cruising range display device of the present invention employs the following means in order to achieve the main object described above.

The cruising range display device of the present invention,
A cruising distance display device that is mounted on an electric vehicle including a traveling motor and a battery that exchanges electric power with the motor, and displays a cruising distance of the vehicle on a display unit,
Vehicle power consumption calculating means for calculating vehicle power consumption;
The first calculated cruising distance is calculated using the latest calculated value by the electricity cost calculating means and the storage ratio of the battery, and one or more selected from the calculated values up to the present time by the electricity cost calculating means as being poor Display control means for calculating a second cruising distance using the calculated value and the storage ratio of the battery, and displaying the calculated first cruising distance and the calculated second cruising distance on the display unit When,
It is a summary to provide.

  In the cruising distance display device of the present invention, the vehicle power consumption is calculated, the first cruising distance is calculated using the latest calculated value and the storage ratio of the battery, and the power consumption among the calculated values up to now is calculated. The second cruising distance is calculated using one or more calculated values selected as bad and the battery storage ratio, and the calculated first cruising distance and second cruising distance are displayed on the display unit. This not only notifies the driver of the cruising distance in the current usage state of the vehicle, but can also notify the cruising distance in the usage state where the power consumption is poor among the present. As a result, the driver can easily make a travel plan. Here, the “cruising distance” refers to a distance (cruising distance) that can be traveled with an amount of electric power that can be discharged from the battery. Further, the “electricity cost” is used as the electric energy per unit distance [Wh / km]. Therefore, “the electricity cost is bad” means that the value is large. Further, the “calculated value up to the present” may be a calculated value up to the present after the vehicle is shipped.

  In such a cruising range display device according to the present invention, the display control means uses one or more calculated values selected as having good power costs among the calculated values up to the present time by the power cost calculating means and the storage ratio of the battery. And calculating the third cruising distance, and displaying the calculated first cruising distance, the calculated second cruising distance, and the third cruising distance on the display unit. You can also. If it carries out like this, a driver | operator can be alert | reported also about the cruising distance in the use condition with a good electricity cost among the present. As a result, the driver can more easily make a travel plan.

  In the cruising range display device of the present invention in which the first cruising range, the second cruising range and the third cruising range are displayed on the display unit, the display control means includes the first cruising range, The second cruising range and the third cruising range may be means for displaying the side by side on the display unit. If it carries out like this, a driver | operator can be able to grasp | ascertain now more easily the 1st cruising range, the 2nd cruising range, and the 3rd cruising range.

  Further, in the cruising range display device of the present invention in which the first cruising range, the second cruising range and the third cruising range are displayed on the display unit, the display control unit is configured to display the current cruising range display unit according to the present invention. It can also be a means for calculating the third cruising distance using the calculated value selected as the best power consumption among the calculated values up to and the storage ratio of the battery.

  In the cruising range display device according to the present invention, the display control means performs the second cruising using the calculated value selected as the worst power cost among the calculated values up to the present time by the power cost calculating means and the storage ratio of the battery. It can also be a means for calculating a possible distance.

  Further, in the cruising range display device of the present invention, the electric vehicle is a vehicle including an electric device that operates using electric power from the battery, and the vehicle electric power calculation means travels for a first predetermined time. It can also be a means for calculating the vehicle power consumption using the power consumption for traveling at the time and the power consumption of the electric device when traveling for the second predetermined time.

It is a block diagram which shows the outline of a structure of the electric vehicle 20 carrying the cruising range display apparatus as one Example of this invention. It is a flowchart which shows an example of the cruising range display control routine performed by the electronic control unit 50 of an Example. It is explanatory drawing which shows an example of the mode of the time change of the cruising range L0, L1, L2. 7 is an explanatory diagram illustrating an example of display contents of a display unit. FIG. It is explanatory drawing which shows an example of the display content of the display part 70 of a modification. It is a flowchart which shows an example of the cruising range display control routine of a modification.

  Next, the form for implementing this invention is demonstrated using an Example.

  FIG. 1 is a configuration diagram showing an outline of a configuration of an electric vehicle 20 equipped with a cruising range display device as an embodiment of the present invention. As shown in FIG. 1, the electric vehicle 20 according to the embodiment drives a motor 32 that can input and output power to a drive shaft 22 connected to drive wheels 26 a and 26 b via a differential gear 24, and a motor 32. An inverter 34, a battery 36 configured as, for example, a lithium ion secondary battery, and exchanges electric power with the motor 32 via the inverter 34, and an air conditioner 40 that receives power supply from the battery 36 and performs air conditioning in the passenger compartment. And a display unit 70 that is arranged in the vicinity of the driver's seat and displays the cruising distance, and an electronic control unit 50 that controls the entire vehicle. In the embodiment, the display unit 70 and the electronic control unit 50 correspond to a cruising range display device.

  The electronic control unit 50 is configured as a microprocessor centered on the CPU 52. In addition to the CPU 52, a ROM 54 that stores a processing program, a RAM 56 that temporarily stores data, and a nonvolatile memory that holds the stored data. A flash memory 58 and an input / output port (not shown) are provided. The electronic control unit 50 detects the rotational position θm of the rotor of the motor 32 from the rotational position detection sensor 32 a that detects the rotational position of the rotor of the motor 32, and the phase current flowing in each phase of the three-phase coil of the motor 32. The phase current from the current sensor, the inter-terminal voltage Vb from the voltage sensor 37a attached between the terminals of the battery 36, the charge / discharge current Ib from the current sensor 37b attached to the output terminal of the battery 36, and the battery 36. The battery temperature Tb from the temperature sensor 37c, the power consumption Pac of the air conditioner 40 from the power sensor 41 attached to the air conditioner 40, the ignition signal from the ignition switch (start switch) 60, and the operation position of the shift lever 61 are detected. Shift position SP, access from shift position sensor 62 The accelerator opening Acc from the accelerator pedal position sensor 64 that detects the amount of depression of the pedal 63, the brake pedal position BP from the brake pedal position sensor 66 that detects the amount of depression of the brake pedal 65, the vehicle speed V from the vehicle speed sensor 68, etc. It is input via the input port. From the electronic control unit 50, a switching control signal to a switching element (not shown) of the inverter 34, a control signal to the air conditioner 40, a control signal to the display unit 70, and the like are output via an output port. The electronic control unit 50 calculates the electrical angle θe, rotational angular velocity ωm, and rotational speed Nm of the rotor of the motor 32 based on the rotational position θm of the rotor of the motor 32 detected by the rotational position detection sensor 32a, Based on the charge / discharge current Ib of the battery 36 detected by the sensor 37b, the storage ratio SOC, which is the ratio of the amount of power that can be discharged from the battery 36 at that time to the total capacity, is calculated, or the calculated storage ratio SOC and the battery temperature Based on Tb, input / output limits Win and Wout, which are the maximum allowable power that may charge / discharge the battery 36, are calculated.

  In the thus configured electric vehicle 20 of the embodiment, the electronic control unit 50 sets the required torque Tr * to be output to the drive shaft 22 in accordance with the accelerator opening Acc and the vehicle speed V, and limits the input / output of the battery 36. By dividing Win and Wout by the rotational speed Nm of the motor 32, torque limits Tmin and Tmax are set as upper and lower limits of the torque that may be output from the motor 32, and the required torque Tr * is limited by the torque limits Tmin and Tmax. Then, a torque command Tm * as a torque to be output from the motor 32 is set, and switching control of the switching element of the inverter 34 is performed so that the motor 32 is driven by the set torque command Tm *.

  Next, the operation of the electric vehicle 20 of the embodiment configured as described above, particularly the operation when displaying the cruising range on the display unit 70 will be described. Here, the “cruising distance” refers to a distance (cruising distance) that can be traveled with the amount of electric power that can be discharged from the battery 36. FIG. 2 is a flowchart illustrating an example of a cruising range display control routine executed by the electronic control unit 50 of the embodiment. This routine is repeatedly executed every predetermined time (for example, every several msec).

  When the cruising range display control routine is executed, the electronic control unit 50 firstly sets the worst vehicle power consumption Ev1 as the worst value of the travel power consumption Ed, the air conditioning power consumption Eac, and the current vehicle power consumption, and the best vehicle power consumption up to the present. A process of inputting data such as the best vehicle power consumption Ev2 and the storage ratio SOC of the battery 36 as values is executed (step S100). Here, “electricity cost” is assumed to be used as the electric energy [Wh / km] per unit distance in the embodiment. Therefore, the smaller the value of the power consumption, the better.

  The travel electricity cost Ed is calculated by dividing the electric energy Wm [Wh] of the motor 32 when traveling for a predetermined time T1 (for example, 2 minutes, 3 minutes, 5 minutes, etc.) by the distance L1 [km] traveled during that time. The data written in the RAM 56 is read and input. Therefore, the travel electricity cost Ed is updated every predetermined time T1. The electric power Wm of the motor 32 is the product of the power consumption Pm of the motor 32 obtained as the product of the torque command Tm * of the motor 32 and the rotation speed Nm, or the product of the inter-terminal voltage Vb of the battery 36 and the charge / discharge current Ib. The value obtained by subtracting the power consumption Pac of the air conditioner 40 from the obtained discharge power Pb from the battery 36 (Pb-Pac) can be calculated as an integrated value for a predetermined time T1.

  The air conditioning power consumption Eac is obtained by dividing the electric energy Wac [Wh] of the air conditioner 40 when traveling for a predetermined time T2 (for example, 20 minutes, 30 minutes, 40 minutes, etc.) by the distance L2 [km] traveled during that time. Thus, the data calculated and written in the RAM 56 is read and input. Therefore, the air conditioning power consumption Eac is updated every predetermined time T2. The power amount Wac of the air conditioner 40 can be calculated as an integrated value of the power consumption Pac of the air conditioner 40 for a predetermined time T1.

  Further, the worst vehicle power consumption Ev1 and the best vehicle power consumption Ev2 are read and inputted from the flash memory 58.

  In addition, the storage ratio SOC of the battery 36 is calculated based on the charging / discharging current Ib of the battery 36 detected by the current sensor 37b and is written and input to the RAM 56.

  When the data is input in this way, the sum of the input traveling power cost Ed and the air conditioning power cost Eac is calculated as the vehicle power cost Ev (step S110). Then, the calculated vehicle power consumption Ev is compared with the worst vehicle power consumption Ev1 (step S120). When the vehicle power consumption Ev is larger than the worst vehicle power consumption Ev1, the latest calculated value of the vehicle power consumption Ev is worse than the previous calculated value. Time), the vehicle power consumption Ev is updated as the worst vehicle power consumption Ev1 and written to the flash memory 58 (step S130). When the vehicle power consumption Ev is equal to or less than the worst vehicle power consumption Ev1, the process of step S130 is not executed. That is, the processes in steps S120 and S130 are processes for holding or updating the maximum value (worst value) as the worst vehicle power consumption Ev1 among the vehicle power consumption Ev (calculated value) from when the vehicle is shipped to the present.

  Subsequently, the vehicle power consumption Ev is compared with the best vehicle power consumption Ev2 (step S140), and when the vehicle power consumption Ev is smaller than the best vehicle power consumption Ev1 (when the latest calculated value of the vehicle power consumption Ev is better than the previous calculated value). ), The vehicle power consumption Ev is updated as the best vehicle power consumption Ev2 and written to the flash memory 58 (step S150). When the vehicle power consumption Ev is equal to or greater than the best vehicle power consumption Ev2, the process of step S150 is not executed. That is, the processes of steps S140 and S150 are processes for holding or updating the minimum value (best value) among the vehicle power consumption Ev (calculated value) from when the vehicle is shipped to the present as the best vehicle power consumption Ev2.

  Next, the storage ratio SOC [%] of the battery 36 is converted into the electric energy Wbsoc [Wh] that can be discharged from the battery 36 by multiplying the storage ratio SOC of the battery 36 by the conversion coefficient ke (step S160). Here, the conversion coefficient ke is determined based on the total capacity of the battery 36 and the like. Then, the electric power amount Wbsoc is divided by the vehicle electric power cost Ev to calculate the cruising distance L0 based on the vehicle electric power cost Ev (latest calculated value) (step S170), and the electric power amount Wbsoc is divided by the worst vehicle electric power cost Ev1 The cruising range L1 based on the vehicle power cost Ev1 is calculated (step S180), and the cruising range L2 based on the best vehicle power cost Ev2 is calculated by dividing the power amount Wbsoc by the best vehicle power cost Ev2 (step S190). The cruising distances L0, L1, and L2 are displayed side by side on the display unit 70 (step S200), and this routine is terminated.

  FIG. 3 is an explanatory diagram showing an example of how the cruising distances L0, L1, and L2 change with time, and FIG. 4 is an explanatory diagram showing an example of the display content of the display unit 70. As shown in FIG. As shown in FIG. 3, before the time t1, from the time t2 to the time t3, and after the time t4, the vehicle power consumption Ev (calculated value) is within the range from the worst vehicle power consumption Ev1 to the best vehicle power consumption Ev2. The distance L0 is within the range of the cruising distance L1 to the cruising distance L2, and from the time t1 to the time t2, the vehicle power cost Ev is updated as the worst vehicle power cost Ev1, and the cruising distance L0 and the cruising distance L1 are From time t3 to time t4, the vehicle power consumption Ev is updated as the best vehicle power consumption Ev2, and the cruising range L0 and the cruising range L2 are equal. By displaying these cruising distances L0, L1, and L2 side by side on the display unit 70, the driver is notified of the cruising distance L0 in the current use state of the vehicle (driving state and use state of the air conditioner 40). In addition, the minimum cruising distance L1 and the maximum cruising distance L2 based on the use state of the vehicle up to now can be notified. As a result, the driver can easily make a travel plan.

  According to the cruising range display device mounted on the electric vehicle 20 of the embodiment described above, the cruising range L0 corresponding to the vehicle power consumption Ev (latest calculated value) and the storage ratio SOC of the battery 36, and the worst vehicle Since the cruising distance L1 according to the electricity cost Ev1 and the storage ratio SOC of the battery 36 and the cruising distance L2 according to the best vehicle electricity cost Ev2 and the storage ratio SOC of the battery 36 are displayed side by side on the display unit 70, In addition to notifying the user of the cruising distance L0 in the current use state of the vehicle, the minimum cruising distance L1 and the maximum cruising distance L2 based on the use state of the vehicle up to now may be reported. it can. As a result, the driver can easily make a travel plan.

  In the electric vehicle 20 of the embodiment, the cruising distances L0, L1, and L2 are displayed side by side on the display unit 70. However, the cruising distances L0, L1, and L2 are switched one by one as a display changeover switch (not shown) is pressed. It is good also as what is displayed on the display part 70. FIG. 5 is an explanatory diagram showing an example of display contents of the display unit 70 in this case. In the example of FIG. 5, a case is shown in which the cruising range L0, the cruising range L1, the cruising range L2, the cruising range L0,... .

  In the electric vehicle 20 of the embodiment, the cruising distances L0 to L2 are displayed on the display unit 70, but only the cruising distances L0 and L1 may be displayed on the display unit 70.

  In the electric vehicle 20 of the embodiment, the travel power cost Ed is the distance L1 traveled during the period of the electric power Wm [Wh] of the motor 32 when traveled for a predetermined time T1 (for example, 2 minutes, 3 minutes, 5 minutes, etc.). Although the value (Wm / L1) divided by [km] is used, this value (Wm / L1) is used as the temporary travel power cost Edtmp (i) and this temporary travel power cost Edtmp (i) and n1 times ( For example, an average value of the temporary travel power consumption Edtmp (i-1) to Edtmp (i-n1) of three times, five times, ten times, etc. may be used. Further, in the electric vehicle 20 of the embodiment, the air conditioning power consumption Eac travels during the predetermined time T2 (for example, 20 minutes, 30 minutes, 40 minutes, etc.) while the electric energy Wac [Wh] of the air conditioner 40 travels. The value (Wac / L2) divided by the distance L2 [km] is used, but this value (Wac / L2) is used as the temporary air-conditioning electricity cost Eactmp (j) and the temporary air-conditioning electricity cost Eactmp (i) and An average value of n2 times (for example, 2 times, 3 times, 5 times, etc.) of temporary air-conditioning electricity costs Eactmp (j−1) to Eactmp (j−n2) may be used.

  In the electric vehicle 20 according to the embodiment, the cruising range L1 is calculated using the worst vehicle power consumption Ev1 as the maximum value (worst value) of the vehicle power consumption Ev (calculated value) up to now and the storage ratio SOC of the battery 36. Although the calculation is performed, instead of the worst vehicle power consumption Ev1, one or more vehicle power consumption Ev (calculated value) selected as having a low power consumption, for example, n3 from the maximum value side (for example, two or three, The cruising range L1 may be calculated using an average value of vehicle power consumption Ev (calculated value) of five or the like. Further, in the electric vehicle 20 of the embodiment, the cruising distance using the best vehicle power consumption Ev2 as the minimum value (best value) of the vehicle power consumption Ev (calculated value) up to now and the storage ratio SOC of the battery 36 is possible. L2 is calculated, but instead of the best vehicle power consumption Ev2, one or more vehicle power consumption Ev (calculated value) selected as having good power consumption, for example, n4 (for example, 2 or 3) from the minimum value side The cruising range L2 may be calculated by using an average value of the vehicle power consumption Ev (calculated value) of 5 pieces.

  Although not specifically described in the electric vehicle 20 of the embodiment, the worst vehicle power consumption Ev1 and the best vehicle power consumption Ev2 are reset when the motor 32, the inverter 34, the battery 36, the air conditioner 40, etc. are replaced or repaired. It may be a thing.

  In the electric vehicle 20 of the embodiment, the sum of the travel power cost Ed and the air conditioning power cost Eac is calculated as the vehicle power cost Ev regardless of whether or not the air conditioning device 40 is operating. The vehicle power consumption Ev may be calculated in consideration of whether or not there is. An example of the cruising range display control routine in this case is shown in FIG. This routine is the same as the routine of FIG. 2 except that the process of step S100b is executed instead of the process of step S100 and the processes of steps S102 and S104 are added. Therefore, the same process is given the same step number, and the detailed description thereof is omitted.

  In the cruising range display control routine of FIG. 6, the electronic control unit 50 first operates the travel power cost Ed, the air conditioning power cost Eac, the worst vehicle power cost Ev1, the best vehicle power cost Ev2, the storage ratio SOC of the battery 36, and the air conditioner 40. A process of inputting data such as an air conditioning flag F indicating whether or not the air conditioner is present (step S100b). The method for inputting the travel power cost Ed, the air conditioning power cost Eac, the worst vehicle power cost Ev1, the best vehicle power cost Ev2, and the storage ratio SOC of the battery 36 has been described above. The air conditioner flag F is set to a value of 1 when the air conditioner 40 is in operation, and is set to a value of 0 when the air conditioner 40 is not in operation.

  When the data is input in this way, the value of the air conditioning flag F is checked (step S102). When the air conditioning flag F is a value 1, the sum of the travel power cost Ed and the air conditioning power cost Eac is calculated as the vehicle power cost Ev (step S110). The process after step S120 is executed. On the other hand, when the air-conditioning flag F has a value of 0, the travel electricity cost Ed is set as the vehicle electricity cost Ev (step S104), and the processes after step S120 are executed. In this way, when the air conditioner 40 is not operating, the vehicle power cost Ev is reduced (it becomes better as a power cost) and the cruising distance L0 is larger than when the air conditioner 40 is operating. . Therefore, when the driver operates a switch (not shown) to turn off the air conditioner 40 (when the operation is stopped), the driver is notified that the cruising distance L0 is increased by the switch operation. be able to.

  In the electric vehicle 20 of the embodiment, the air conditioner 60 is considered as an electric device that operates using the electric power from the battery 36, but in addition to or instead of this, the electric power from the battery 36 is reduced. A DC / DC converter or the like that supplies a low voltage system (for example, 12 V or the like) to which an electronic control unit 50 or an auxiliary device (not shown) is connected may be considered. Further, in the electric vehicle 20 of the embodiment, the sum of the travel power cost Ed and the air conditioning power cost Eac is calculated as the vehicle power cost Ev. However, the travel power cost Ed is set as the vehicle power cost Ev without considering the air conditioning power cost Eac. It is good also as what to do.

  In the embodiment, the present invention is applied to the electric vehicle 20 including the motor 32 that can input and output power to the drive shaft 22 connected to the drive wheels 26a and 26b, and the battery 36 that exchanges power with the motor 32. In addition to this, the present invention may be applied to a hybrid vehicle having an engine capable of outputting power to the drive shaft 22, and in addition to the hardware configuration of the hybrid vehicle, the system is connected to an external power source in the off state. Sometimes, it may be applied to a so-called plug-in electric vehicle or hybrid vehicle provided with a charger that charges the battery 36 using electric power from an external power source.

  The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. In the embodiment, the motor 32 corresponds to a “motor”, the battery 36 corresponds to a “battery”, the display unit 70 corresponds to a “display unit”, and the electronic control unit 50 displays “vehicle power consumption calculation means” or “display”. It corresponds to “control means”.

  The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problem is the same as that of the embodiment described in the column of means for solving the problem. Therefore, the elements of the invention described in the column of means for solving the problems are not limited. That is, the interpretation of the invention described in the column of means for solving the problems should be made based on the description of the column, and the examples are those of the invention described in the column of means for solving the problems. It is only a specific example.

  As mentioned above, although the form for implementing this invention was demonstrated using the Example, this invention is not limited at all to such an Example, In the range which does not deviate from the summary of this invention, it is with various forms. Of course, it can be implemented.

  The present invention can be used in the manufacturing industry of cruising range display devices.

  20 electric vehicle, 22 driving shaft, 24 differential gear, 26a, 26b driving wheel, 32 motor, 32a rotational position detection sensor, 34 inverter, 36 battery, 37a voltage sensor, 37b current sensor, 37c temperature sensor, 40 air conditioner, 41 Power sensor, 50 Electronic control unit, 52 CPU, 54 ROM, 56 RAM, 58 Flash memory, 60 Ignition switch, 61 Shift lever, 62 Shift position sensor, 63 Accel pedal, 64 Accel pedal position sensor, 65 Brake pedal, 66 Brake Pedal position sensor, 68 vehicle speed sensor, 70 display unit.

Claims (6)

A cruising distance display device that is mounted on an electric vehicle including a traveling motor and a battery that exchanges electric power with the motor, and displays a cruising distance of the vehicle on a display unit,
Vehicle power consumption calculating means for calculating vehicle power consumption;
The first calculated cruising distance is calculated using the latest calculated value by the electricity cost calculating means and the storage ratio of the battery, and one or more selected from the calculated values up to the present time by the electricity cost calculating means as being poor Display control means for calculating a second cruising distance using the calculated value and the storage ratio of the battery, and displaying the calculated first cruising distance and the calculated second cruising distance on the display unit When,
A cruising range display device comprising: The cruising range display device according to claim 1,
The display control means calculates a third cruising distance using one or more calculated values selected as being good in power consumption among the calculated values up to the present by the power consumption calculating means and the storage ratio of the battery, Means for displaying the calculated first cruising distance, the calculated second cruising distance and the third cruising distance on the display unit;
A cruising range display device. The cruising range display device according to claim 2,
The display control means is means for displaying the first cruising distance, the second cruising distance, and the third cruising distance side by side on the display unit.
A cruising range display device. A cruising range display device according to claim 2 or 3,
The display control means is means for calculating a third cruising distance using a calculation value selected as the best power consumption among the calculation values up to the present by the power consumption calculation means and a storage ratio of the battery.
A cruising range display device. A cruising range display device according to any one of claims 1 to 4,
The display control means is a means for calculating a second cruising distance using a calculation value selected as the worst power consumption among the calculation values up to the present by the power consumption calculation means and a storage ratio of the battery.
A cruising range display device. A cruising range display device according to any one of claims 1 to 5,
The electric vehicle is a vehicle including an electric device that operates using electric power from the battery,
The vehicle power consumption calculating means is a means for calculating a vehicle power consumption using a power consumption for traveling when traveling for a first predetermined time and a power consumption for the electric device when traveling for a second predetermined time. is there,
A cruising range display device.

Images