Display control device

Abstract

The invention relates to a display control device. Provided is a display control device for a vehicle that travels by mounting at least one of fuel and electricity as an energy source, the display control device being provided with a drive device for driving a drive shaft connected to an axle and a display device for displaying information. The display control device displays an estimated consumption rate estimated as a future energy consumption rate of the vehicle on a display device, estimates an average vehicle speed of the vehicle on the basis of a predetermined parameter reflecting a travelable distance or the travelable distance, and calculates an estimated consumption rate on the basis of the estimated average vehicle speed. The travelable distance is a distance at which the vehicle can travel by an amount of an energy source mounted on the vehicle.

Description

Technical Field

[0001] The present disclosure relates to a display control device. Background Art

[0002] In the past, as a cruising distance calculation device for calculating the cruising distance of a vehicle, a device used in a vehicle equipped with a power storage device (secondary battery) has been proposed (for example, refer to Japanese Patent Laid-Open No. 2014-64364). In this device, the average vehicle speed during the past predetermined distance is calculated, and the energy consumption rate corresponding to the average vehicle speed is derived from a table showing the relationship between the vehicle's energy consumption rate (power consumption) and the vehicle speed. Then, the cruising distance is calculated based on the derived energy consumption rate and the power storage ratio of the power storage device. Summary of the invention

[0003] Incidentally, in the case where a display device for displaying information is provided in the passenger compartment and the display device is made to display an estimated consumption rate estimated as the energy consumption rate of the vehicle in the future, it is considered to be an important issue to display the estimated consumption rate calculated with good accuracy. In the above-mentioned cruising range calculation device, the estimated consumption rate is derived using the average vehicle speed in the past travel. The average vehicle speed in the past travel may deviate from the average vehicle speed in the future travel, and the estimated consumption rate may not be calculated with good accuracy.

[0004] The main purpose of the display control device of the present disclosure is to display the estimated consumption rate calculated with high accuracy.

[0005] The display control device disclosed in the present invention adopts the following means to achieve the above main purpose. The first display control device disclosed in the present invention is used for a vehicle, which has a drive device that drives a drive shaft connected to an axle and a display device that displays information, and is equipped with at least one of fuel and electricity as an energy source for running, and the display control device causes the display device to display an estimated consumption rate estimated as the energy consumption rate of the vehicle in the future,

[0006] The first display control device estimates an average speed of the vehicle based on a predetermined parameter reflecting a drivable distance that the vehicle can travel with the amount of the energy source carried by the vehicle, and calculates the estimated consumption rate based on the estimated average speed.

[0007] In the display control device of the present disclosure, the average speed of the vehicle is estimated based on a predetermined parameter reflecting the drivable distance or the drivable distance, and the estimated consumption rate is calculated based on the estimated average speed. The drivable distance is the distance that the vehicle can travel with the amount of energy source installed in the vehicle. It is considered that when the drivable distance is long, the frequency of high-speed driving is high and the average speed is high compared to when the drivable distance is short. Therefore, by estimating the average speed of the vehicle based on the predetermined parameter reflecting the drivable distance, the average speed can be estimated with better accuracy. Since the estimated consumption rate is calculated based on the average speed estimated in this way, the estimated consumption rate can be calculated with better accuracy. As a result, the estimated consumption rate calculated with good accuracy can be displayed. Here, as the "predetermined parameter", the amount of energy source installed in the vehicle, the expected driving distance from the current position of the vehicle to the destination calculated in the navigation system installed in the vehicle, the driving history record of the driver when driving the vehicle in the past, etc. can be listed.

[0008] In the first display control device of the present disclosure, it is also possible that:

[0009] The driving device includes a motor for traveling and a power storage device for exchanging electric power with the motor.

[0010] The predetermined parameter is the power storage ratio of the power storage device,

[0011] The first display control device estimates the average vehicle speed using the power storage ratio and a predetermined relationship determined in advance as a relationship between the power storage ratio and the average vehicle speed, and calculates an estimated power consumption as the estimated consumption rate based on the average vehicle speed.

[0012] In this case, the vehicle may include an air conditioner that operates upon receiving a supply of electric power and performs air conditioning in the passenger compartment.

[0013] The first display control device sets a first power consumption as an estimated value of running power consumption and a second power consumption as an estimated value of air-conditioning power consumption based on the average vehicle speed, and calculates the estimated power consumption by adding the second power consumption to the first power consumption.

[0014] The second display control device of the present disclosure is intended to be used in a vehicle, the vehicle having a drive device for driving a drive shaft connected to an axle, an air conditioning device for air conditioning a passenger compartment, and a display device for displaying information, and the vehicle is driven by at least one of fuel or electricity as an energy source, the display control device causing the display device to display an estimated consumption rate estimated as the energy consumption rate of the vehicle in the future,

[0015] The second display control device sets the first consumption rate and the second consumption rate in such a manner that the first consumption rate estimated as the driving distance per unit energy becomes smaller when the amount of the energy source mounted on the vehicle is large than when the amount of the energy source mounted on the vehicle is small, and the second consumption rate estimated as the driving distance per unit energy consumed by the air-conditioning device becomes larger, and the sum of the first consumption rate and the second consumption rate is taken as the estimated consumption rate.

[0016] In the second display control device of the present disclosure, the first consumption rate and the second consumption rate are set in such a manner that the first consumption rate estimated as the driving distance per unit energy becomes smaller when the amount of energy source mounted on the vehicle is large compared to when the amount of energy source mounted on the vehicle is small, and the second consumption rate estimated as the driving distance per unit energy consumed by the air-conditioning device becomes larger, and the sum of the first consumption rate and the second consumption rate is used as the estimated consumption rate. When the amount of energy source mounted on the vehicle is large, the driving distance becomes longer and the frequency of high-speed driving becomes higher compared to when the amount of energy source mounted on the vehicle is small. Therefore, the driving resistance becomes larger and the first consumption rate becomes smaller. In addition, when the driving distance becomes longer, the second consumption rate becomes larger. Therefore, the first consumption rate and the second consumption rate are set so that when the amount of energy source mounted on the vehicle is large, the first consumption rate estimated as the travel distance per unit energy becomes smaller, and the second consumption rate estimated as the travel distance per unit energy consumed by the air conditioner becomes larger than when the amount of energy source mounted on the vehicle is small, thereby making it possible to set the travel power consumption and the air conditioner power consumption more accurately and calculate the estimated power consumption more accurately. As a result, the estimated consumption rate calculated with high accuracy can be displayed.

[0017] In the third display control device of the present disclosure, the display control device is used in a vehicle, the vehicle has a drive device and a display device, the drive device has a motor for running and a power storage device for exchanging power with the motor, and the display device displays information.

[0018] The third display control device causes the display device to display an estimated power consumption as an estimate of future power consumption of the vehicle as an estimated consumption rate, and when the power storage ratio of the power storage device is large, increases the estimated power consumption compared to when the power storage ratio of the power storage device is small.

[0019] In the third display control device of the present disclosure, when the power storage ratio of the power storage device is large, the estimated power consumption is increased compared to when the power storage ratio of the power storage device is small. It is believed that when the power storage ratio of the power storage device is large, the distance that the vehicle can travel at the power storage ratio of the power storage device, that is, the driving distance, is longer than when the power storage ratio of the power storage device is small. It is believed that when the drivable distance is long, the frequency of high-speed driving is high and the power consumption is large compared to when the drivable distance is short. Therefore, when the power storage ratio of the power storage device is large, by increasing the estimated power consumption compared to when the power storage ratio of the power storage device is small, the estimated power consumption, that is, the estimated consumption rate, can be set with better accuracy. As a result, the estimated consumption rate can be displayed with better accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals represent like elements, and in which:

[0021] Figure 1 2 is a schematic structural diagram of a battery electric vehicle 20 equipped with a display control device according to the present embodiment;

[0022] Figure 2 is a flowchart showing an example of a display routine;

[0023] Figure 3 is an explanatory diagram showing an example of the relationship between the power storage ratio SOC and the average vehicle speed Vav; and

[0024] Figure 4 It is an explanatory diagram showing an example of the relationship between the drivable distance Rd and the average vehicle speed Vav. DETAILED DESCRIPTION

[0025] Embodiments of the present disclosure will be described with reference to the drawings. Figure 1 1 is a schematic diagram of a battery electric vehicle 20 equipped with a display control device according to the present embodiment. As shown in the figure, the battery electric vehicle 20 according to the present embodiment includes a motor 32 for traveling, an inverter 34, a battery 36 as a power storage device, an air conditioning device 40, a navigation system 42, and an electronic control unit (hereinafter referred to as "ECU") 50.

[0026] The motor 32 is configured as a synchronous generator motor and includes a rotor having a permanent magnet embedded in a rotor core and a stator having a three-phase coil wound around a stator core. The rotor of the motor 32 is connected to a drive shaft 26 connected to drive wheels 22a and 22b via a differential gear 24 .

[0027] The inverter 34 is used to drive the motor 32 and is connected to the power line 38 together with the battery 36. The inverter 34 has 6 transistors T11 to T16 as switching elements and 6 diodes D11 to D16 connected in parallel with the 6 transistors T11 to T16. The transistors T11 to T16 are arranged in pairs of 2 so as to become the source side and the drain side with respect to the positive side line and the negative side line of the power line 38, respectively. Each connection point of the connection points of the paired transistors of the transistors T11 to T16 is connected to each coil of the three-phase (U phase, V phase, W phase) coil of the motor 32. Therefore, when the voltage acts on the inverter 34, the ECU 50 adjusts the ratio of the conduction time of the paired transistors T11 to T16, thereby forming a rotating magnetic field in the three-phase coil, and the motor 32 is driven to rotate.

[0028] The battery 36 is configured as, for example, a lithium ion secondary battery or a nickel-metal hydride secondary battery having a rated voltage of approximately several hundred V, and is connected to the power line 38 together with the inverter 34 as described above.

[0029] The air conditioner 40 is configured to condition the air in the passenger compartment. The air conditioner 40 operates using power from the battery 36 or an auxiliary battery (not shown) having a lower rated power than the battery 36 . The air conditioner 40 is controlled by the ECU 50 .

[0030] The navigation system 42 is a system for guiding the vehicle to the set destination, and is provided with a map information database and a display unit (not shown). The map information database stores the pavement conditions of the roads in each section, the width of the road, the number of lanes, the width of the sidewalk, the direction in which vehicles can pass, the legal speed, etc. When the destination is set, the navigation system 42 sets a route based on the information of the destination, the information of the current position (the current position of the vehicle) obtained by the GPS, and the information stored in the map information database, and performs route guidance.

[0031] ECU50 is equipped with a microcomputer, and the microcomputer has a CPU, ROM, RAM, flash memory, input / output ports, and a communication port. ECU50 inputs signals from various sensors via the input port. For example, ECU50 inputs the rotation position θm from the rotation position sensor (e.g., rotary transformer) 32a that detects the rotation position of the rotor of the motor 32, and the phase currents Iv and Iw from the current sensors 32v and 32w that detect the currents of the V phase and the W phase of the motor 32. It also inputs the voltage Vb from the voltage sensor 36v installed between the terminals of the battery 36, and the current Ib from the current sensor 36i installed at the output terminal of the battery 36. It also inputs a start signal from the start switch 60, a shift position SP from the shift sensor 62 that detects the operating position of the shift lever 61, an accelerator opening Acc from the acceleration sensor 64 that detects the amount of depression of the accelerator pedal 63, a brake pedal position from the brake sensor 66 that detects the amount of depression of the brake pedal 65, and a vehicle speed V from the vehicle speed sensor 67.

[0032] ECU50 outputs various control signals via the output port. For example, ECU50 outputs control signals to a plurality of switching elements of inverter 34 and control signals to display device 70 for displaying information. ECU50 calculates the rotation speed Nm of motor 32 based on the control rotation position θmc of the rotor of motor 32 from rotation position sensor 32a. It also calculates the power storage ratio SOC of battery 36 based on the integrated value of current Ib. The power storage ratio SOC is the ratio of the power that can be discharged to the total capacity of battery 36.

[0033] In a battery electric vehicle 20 equipped with the display control device of the present embodiment constructed in this way, the ECU 50 sets the required torque Td* required for driving (required by the drive shaft 26) based on the accelerator opening Acc and the vehicle speed V, and sets the set required torque Td* as the torque command Tm* of the motor 32, so that the motor 32 controls the switching of multiple switching elements of the inverter 34 in a manner such that the motor 32 is driven by the torque command Tm*.

[0034] Next, the operation of a battery electric vehicle 20 equipped with the display control device of this embodiment configured as described above, particularly the operation when the estimated power consumption (estimated consumption rate) as an estimated value of the future power consumption (energy consumption rate) of the vehicle and the drivable distance are displayed in the passenger compartment, will be described. Figure 2This is a flowchart showing an example of a display routine executed by the ECU 50 of the present embodiment. After the start switch 60 is turned on to start the system of the battery electric vehicle 20, this routine is executed once for one trip (from system start to system stop).

[0035] When executing this routine, the CPU (not shown) of the ECU 50 performs processing (S100) of inputting the power storage ratio SOC and the power amount Wm of the motor 32. The power storage ratio SOC inputs a value calculated based on the integrated value of the current Ib. The power amount Wm is the power amount of the motor 32 when the vehicle has traveled for a predetermined time T1 (for example, 2 minutes, 3 minutes, 5 minutes, etc.), and is set to be a value obtained by multiplying the value calculated by subtracting the power consumption Pac of the air conditioner 40 from the charge and discharge power Pb of the battery 36 obtained as the product of the voltage Vb of the battery 36 from the voltage sensor 36a and the current Ib of the battery 36 from the current sensor 36b during the predetermined time T1 by the predetermined time T1. It should be noted that the running power Pd can also use a value calculated as the product of the torque command Tm* of the motor 32 and the rotation speed Nm.

[0036] Next, based on the power storage ratio SOC, an average vehicle speed Vav is estimated as the average vehicle speed V during future travel (S110). In S110, the relationship between the power storage ratio and the average vehicle speed is obtained in advance through experiments, machine learning, etc., and when the power storage ratio SOC is given, the average vehicle speed corresponding to the power storage ratio SOC is estimated as the average vehicle speed Vav based on the relationship (predetermined relationship) between the power storage ratio and the average vehicle speed. Figure 3 : is an explanatory diagram showing an example of the relationship between the power storage ratio SOC and the average vehicle speed Vav. As shown in the figure, when the power storage ratio SOC is high, the average vehicle speed Vav is higher than when the power storage ratio SOC is low. This is because it is believed that when the power storage ratio SOC is high, the drivable distance Rd, which is the distance that can be traveled with the amount of electricity that can be discharged from the battery 36, is longer than when the power storage ratio SOC is low, and when the drivable distance Rd is long, the frequency of high-speed travel is high and the average vehicle speed Vav is high compared to when the drivable distance Rd is short. By estimating the average vehicle speed Vav based on the power storage ratio SOC in this way, the average vehicle speed Vav can be estimated with better accuracy.

[0037] Next, the running power consumption (first power consumption, first consumption rate) Ecd, which is an estimated value of the running power consumption during the subsequent running, is calculated (S120). The running power consumption Ecd is the running distance per unit discharge power (unit energy) of the battery 36. The running power consumption Ecd is calculated by multiplying the basic value Ecdb of the running power consumption by a coefficient K set so that it becomes smaller when the average vehicle speed Vav is large than when the average vehicle speed Vav is small. Therefore, the running power consumption Ecd becomes smaller when the average vehicle speed Vav is large than when the average vehicle speed Vav is small. This is because when the average vehicle speed Vav is large, the running resistance is large compared to when the average vehicle speed Vav is small, so the running power consumption decreases.

[0038] Next, the air conditioning power consumption (second power consumption, second consumption rate) Eca is calculated as an estimated value of the air conditioning power consumption during subsequent driving (S130). The air conditioning power consumption Eca is the driving distance of the battery electric vehicle 20 per unit power consumption (unit energy consumption) of the air conditioning device 40. The air conditioning power consumption Eca is calculated by dividing the distance L2 traveled by the battery electric vehicle 20 in the predetermined time T2 by the amount of power consumed Whca of the air conditioning device 40 in the predetermined time T2. Here, the distance L2 is calculated by multiplying the average vehicle speed Vav by the predetermined time T2, and the amount of power consumed Whca is calculated by multiplying the average power consumption Pa of the air conditioning device 40 by the predetermined time T2. Therefore, the air conditioning power consumption Eca is calculated by dividing the average vehicle speed Vav by the average power consumption Pa, and becomes larger when the average vehicle speed Vav is high than when the average vehicle speed Vav is low.

[0039] After the running power consumption Ecd and the air conditioning power consumption Eca are calculated in this way, the value obtained by adding the air conditioning power consumption Eca to the running power consumption Ecd is calculated as the estimated power consumption Ec of the battery electric vehicle 20 (S140). Since the estimated power consumption Ec is calculated using the average vehicle speed Vav estimated with good accuracy in this way, the estimated power consumption Ec can be calculated with better accuracy.

[0040] Then, the power storage ratio SOC of the battery 36 is multiplied by the conversion coefficient ke, and the power storage ratio SOC of the battery 36 is converted into the power amount Wbsoc that can be discharged from the battery 36, and the power amount Wbsoc is divided by the estimated power consumption Ec to calculate the drivable distance Rd (S150), and the calculated estimated power consumption Ec and the drivable distance Rd are displayed on the display device 70 (S160), and this routine ends. Since the drivable distance Rd is calculated with high accuracy using the estimated power consumption Ec, the drivable distance Rd can be calculated with high accuracy. As a result, the display device 70 can display the estimated power consumption Ec and the drivable distance Rd calculated with high accuracy.

[0041] According to the battery electric vehicle 20 equipped with the display control device of the embodiment described above, the average vehicle speed Vav of the battery electric vehicle 20 is estimated based on the storage ratio SOC, and the estimated power consumption Ec is calculated based on the estimated average vehicle speed Vav, thereby displaying the estimated power consumption Ec calculated with good accuracy.

[0042] Furthermore, by estimating the average vehicle speed Vav using the power storage ratio SOC and a relationship predetermined as the relationship between the power storage ratio SOC and the average vehicle speed Vav, and calculating the estimated power consumption Ec based on the average vehicle speed Vav, the estimated power consumption Ec calculated with high accuracy can be displayed.

[0043] Furthermore, the battery electric vehicle 20 has an air conditioning device 40 that receives power supply to work and performs air conditioning in the passenger compartment. The driving power consumption Ecd and the air conditioning power consumption Eca are set based on the average vehicle speed Vav, and the estimated power consumption Ec is calculated by adding the driving power consumption Ecd to the air conditioning power consumption Eca, thereby enabling the estimated power consumption Ec to be calculated more appropriately.

[0044] In the above-mentioned embodiment, the average vehicle speed Vav is estimated based on the battery ratio SOC, and the estimated power consumption Ec is calculated based on the average vehicle speed Vav. However, the estimated power consumption Ec may be calculated without estimating the average vehicle speed Vav based on the battery ratio SOC. In this case, the estimated power consumption Ec may be set larger when the battery ratio SOC is high than when the battery ratio SOC is low.

[0045] In the above-mentioned embodiment, the running power consumption Ecd is set to be smaller when the average vehicle speed Vav is large than when the average vehicle speed Vav is small. However, when the battery storage ratio SOC is large, the average vehicle speed Vav is larger than when the battery storage ratio SOC is small, so the running power consumption Ecd may be set to be larger when the battery storage ratio SOC is large than when the battery storage ratio SOC is small.

[0046] In the above-mentioned embodiment, the air conditioning power consumption Eca is set to be larger when the average vehicle speed Vav is large than when the average vehicle speed Vav is small. However, when the battery storage ratio SOC is large, the average vehicle speed Vav is larger than when the battery storage ratio SOC is small, so the air conditioning power consumption Eca may be set to be smaller when the battery storage ratio SOC is large than when the battery storage ratio SOC is small.

[0047] In the above-mentioned embodiment, the running power consumption Ecd and the air conditioning power consumption Eca are calculated, and the estimated power consumption Ec is calculated by adding the air conditioning power consumption Eca to the calculated running power consumption Ecd. However, in addition to the running power consumption Ecd and the air conditioning power consumption Eca, the estimated power consumption Ec can be calculated by adding the auxiliary power consumption of the auxiliary machine type per unit energy consumption as a different auxiliary machine type from the air conditioning device 40, wherein the air conditioning device 40 consumes the power of the battery 36 and the auxiliary machine battery. The auxiliary power consumption can be calculated by dividing the average vehicle speed Vav by the average power consumption of the auxiliary machine type. In addition, in the case where the battery electric vehicle 20 is equipped with a solar power generation system that can charge the battery 36, in addition to the running power consumption Ecd and the air conditioning power consumption Eca, the estimated power consumption Ec can be calculated by adding the solar charging power consumption as the running distance per unit power generation of the solar power generation system. The solar charging power consumption can be calculated by dividing the average vehicle speed Vav by the average charging power of the solar power generation system. Furthermore, as the estimated power consumption Ec, the learned power consumption Ecdl obtained by learning each trip can also be used. The learned power consumption Ecdl is calculated by the following formula (1) when the start switch 60 is turned off and the system stops. In formula (1), "Ecd" is the power consumption in this trip, which is calculated by dividing the travel distance in this trip by the energy consumed in this trip (the discharged power of the battery 36). "Last Ecdl" is the learned power consumption Ecdl up to the last trip. "A" is a value predetermined as a learning reflection rate. "Al" is the reflection rate of the power consumption calculated in this trip to the learned power consumption Ecdl. "k" is the gain.

[0048] Ecdl = (1-A)·previous Ecdl + A·((1-A1)·previous Ecdl + A1·Ecd·k)…(1)

[0049] In the above-mentioned embodiment, when the battery ratio SOC is large, the average vehicle speed Vav is increased compared to when the battery ratio SOC is small. However, in a battery electric vehicle of the type in which the average vehicle speed Vav is reduced when the battery ratio SOC is large compared to when the battery ratio SOC is small, the average vehicle speed Vav may be reduced when the battery ratio SOC is large compared to when the battery ratio SOC is small.

[0050] In the above-mentioned embodiment, the average vehicle speed Vav is estimated based on the battery ratio SOC. However, the average vehicle speed Vav may be estimated based on a predetermined parameter reflecting the drivable distance Rd based on the amount of energy source mounted on the vehicle, such as the expected driving distance from the current position of the battery electric vehicle 20 to the destination calculated in the navigation system 69, the driving history record of the driver when driving the battery electric vehicle 20 in the past, etc., instead of the battery ratio SOC, or together with the battery ratio SOC. In addition, the drivable distance Rd may be used instead of the predetermined parameter. Figure 4 : is an explanatory diagram showing an example of the relationship between the drivable distance Rd and the average vehicle speed Vav. As shown in the figure, when the drivable distance Rd is large, the average vehicle speed Vav becomes larger than when the drivable distance Rd is small. This is because when the drivable distance Rd is large, the frequency of high-speed driving becomes higher than when the drivable distance Rd is small. In this way, by setting the average vehicle speed Vav in a manner that the average vehicle speed Vav becomes larger when the drivable distance Rd is large than when the drivable distance Rd is small, the average vehicle speed Vav can be set with better accuracy.

[0051] In the above-mentioned embodiment, the display control device of the present disclosure is applied to a battery electric vehicle (battery electric vehicle) 20 that drives the drive shaft 26 connected to the axle by the power from the motor 32. However, the display control device of the present disclosure can also be applied to a car equipped with a drive device that drives the drive shaft 26 by the power from the engine instead of the motor 32. In this case, the average speed of the vehicle can also be estimated based on the amount of fuel in the fuel tank, and the fuel consumption can be calculated using the estimated average speed. In this case, it can also be set so that when the amount of fuel is large, the average speed becomes larger than when the amount of fuel is small. In addition, when the amount of fuel is large, the running fuel consumption can be set smaller than when the amount of fuel is small, and the air conditioning fuel consumption can be set larger, and the fuel consumption can be calculated by adding the air conditioning fuel consumption to the set running fuel consumption. In addition, the display control device of the present disclosure can also be applied to a hybrid electric vehicle (hybrid electric vehicle) equipped with a drive device that drives the drive shaft 26 by the power from the engine and the motor.

[0052] It should be noted that the correspondence between the main elements of the embodiment and the main elements of the invention recorded in the "Summary of the Invention" column is an example of a way to specifically explain the embodiment for implementing the invention recorded in the "Summary of the Invention" column, and therefore does not limit the elements of the invention recorded in the "Summary of the Invention" column. That is, the interpretation of the invention recorded in the "Summary of the Invention" column should be based on the description in that column, and the embodiment is only a specific example of the invention recorded in the "Summary of the Invention" column.

[0053] As mentioned above, although the embodiment for implementing this disclosure was described, this disclosure is not limited to such embodiment at all, and it is needless to say that this disclosure can be implemented in various forms within the scope not departing from the gist of this disclosure.

[0054] The present disclosure can be utilized in the manufacturing industry of display control devices and the like.

Claims

1. A display control device, wherein: The display control device is used for a vehicle, the vehicle having a drive device for driving a drive shaft connected to an axle and a display device for displaying information, and the vehicle is equipped with at least one of fuel and electricity as an energy source for running, and the display control device causes the display device to display an estimated consumption rate estimated as the energy consumption rate of the vehicle in the future, The display control device estimates the average speed of the vehicle based on a predetermined parameter reflecting the drivable distance or the drivable distance, and calculates the estimated consumption rate based on the estimated average speed. The drivable distance is the distance that the vehicle can travel with the amount of the energy source carried by the vehicle.

2. The display control device according to claim 1, wherein: The driving device includes a motor for traveling and a power storage device for exchanging electric power with the motor. The predetermined parameter is the power storage ratio of the power storage device, The display control device estimates the average vehicle speed using the power storage ratio and a predetermined relationship determined in advance as a relationship between the power storage ratio and the average vehicle speed, and calculates an estimated power consumption as the estimated consumption rate based on the average vehicle speed.

3. The display control device according to claim 2, wherein: The vehicle includes an air conditioner that operates when supplied with electric power and performs air conditioning in the passenger compartment. The display control device sets a first power consumption as an estimated value of running power consumption and a second power consumption as an estimated value of air-conditioning power consumption based on the average vehicle speed, and calculates the estimated power consumption by adding the second power consumption to the first power consumption.

4. A display control device, wherein: The display control device is used for a vehicle, the vehicle having a drive device for driving a drive shaft connected to an axle, an air conditioning device for performing air conditioning in a passenger compartment, and a display device for displaying information, and the vehicle is driven by at least one of fuel or electricity as an energy source, the display control device causes the display device to display an estimated consumption rate estimated as the energy consumption rate of the vehicle in the future, The display control device sets the first consumption rate and the second consumption rate in such a manner that the first consumption rate estimated as the driving distance per unit energy becomes smaller when the amount of the energy source mounted on the vehicle is large than when the amount of the energy source mounted on the vehicle is small, and the second consumption rate estimated as the driving distance per unit energy consumed by the air-conditioning device becomes larger, and the sum of the first consumption rate and the second consumption rate is used as the estimated consumption rate.

5. A display control device, wherein: The display control device is used for a vehicle, the vehicle having a drive device and a display device, the drive device having a motor for running and a power storage device for exchanging electric power with the motor, the display device displaying information, the display control device causing the display device to display an estimated power consumption estimated as the future power consumption of the vehicle, When the power storage ratio of the power storage device is large, the display control device increases the estimated power consumption compared to when the power storage ratio of the power storage device is small.

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