JP2012091774A - Electric driving vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a running index to be accurately computed.SOLUTION: This electric driving device comprises a storage device, a generator device, a driving motor, a consumption energy computing-out means for computing a consumption energy required for running the electric driving vehicle on the basis of a running resistance, an accessory unit consumption energy and a regenerative energy, a residual energy computing processing means for computing the residual energy left at the storage device, a running index computing processing means for computing the running index on the basis of the consumption energy and the residual energy, and an informing processing means. Since the running index is computed on the basis of the consumption energy and the residual energy, the running index can be computed accurately.

Description

  The present invention relates to an electrically driven vehicle.

  2. Description of the Related Art Conventionally, an electrically driven vehicle such as an electric vehicle, for example, an electric vehicle includes a vehicle drive device, and the drive motor is driven by electric power supplied from a battery, and the torque of the drive motor, that is, the drive motor. It is made to drive | work by generating a torque and transmitting this drive motor torque to a drive wheel.

  However, in the battery, the energy density representing the capacity per unit weight cannot be sufficiently increased, and thus represents the distance that can be traveled when the electric vehicle is driven using the power supplied from the battery. The cruising distance as the first travelable index, the cruising time as the second travelable index representing the travelable time, etc. cannot be increased. In order to increase the cruising distance, the cruising time, etc., it is necessary to increase the capacity of the battery. In this case, not only the battery is increased in size but also the weight of the battery is increased. As a result, the electric vehicle becomes large and the weight of the electric vehicle increases.

  Therefore, in order to increase the cruising distance, cruising time, etc., an electric drive is installed in addition to the battery, and the generator is driven by the engine to generate current and supply it to the battery. Hybrid vehicles are provided as vehicles.

  In the hybrid type vehicle, the remaining amount of the battery representing the degree of charge (charged amount) of the battery, the remaining amount of fuel for driving the engine, that is, the remaining amount of fuel, and the past traveling state of the hybrid type vehicle. The cruising distance and cruising time are calculated based on this and displayed on the screen formed on the display unit (see, for example, Patent Document 1).

JP 2001-231103 A

  However, in the conventional hybrid type vehicle, since it is necessary to adjust the output of the generator in accordance with the traveling load applied to the hybrid type vehicle, the control in the control unit becomes complicated and the power generation efficiency becomes low. End up.

  Therefore, a hybrid vehicle in which the generator is driven at a constant output with high power generation efficiency can be considered. In that case, the time required to drive the generator at a constant output, that is, the necessary power generation time is considered. Since it differs depending on the remaining battery level, the cruising distance and cruising time cannot be accurately calculated based on the remaining battery level and the power generation energy generated by power generation.

  An object of the present invention is to solve the problems of the conventional hybrid type vehicle and provide an electrically driven vehicle capable of accurately calculating a travelable index.

  Therefore, in the electrically driven vehicle of the present invention, a power storage device, a power generation device, a drive motor connected to the power storage device and the power generation device and driven by electric power supplied from the power storage device and the power generation device, and electric drive Energy consumption calculation processing means for calculating energy consumption required for running the electrically driven vehicle based on the running resistance received by the vehicle, the auxiliary machine energy consumed by the auxiliary machine, and the regenerative energy regenerated by the drive motor And a remaining energy calculation processing means for calculating remaining energy remaining in the power storage device, and a travelable index calculation process for calculating a travelable index capable of traveling the electrically driven vehicle based on the consumed energy and the remaining energy. Means and notification processing means for notifying the operator of the travelable index.

  According to the present invention, in an electrically driven vehicle, a power storage device, a power generation device, a drive motor connected to the power storage device and the power generation device, driven by electric power supplied from the power storage device and the power generation device, and electric drive Energy consumption calculation processing means for calculating energy consumption required for running the electrically driven vehicle based on the running resistance received by the vehicle, the auxiliary machine energy consumed by the auxiliary machine, and the regenerative energy regenerated by the drive motor And a remaining energy calculation processing means for calculating remaining energy remaining in the power storage device, and a travelable index calculation process for calculating a travelable index capable of traveling the electrically driven vehicle based on the consumed energy and the remaining energy. Means and notification processing means for notifying the operator of the travelable index.

  In this case, since a travelable index capable of traveling the electrically driven vehicle is calculated based on the energy consumption required for traveling the electrically driven vehicle and the remaining energy remaining in the power storage device, the travelable index is It can be calculated accurately.

It is a figure which shows the vehicle drive device in the 1st Embodiment of this invention. It is a conceptual diagram of the hybrid type vehicle in the 1st Embodiment of this invention. It is a main flowchart which shows operation | movement of the control part in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the travel pattern setting process in the 1st Embodiment of this invention. It is a 1st figure which shows the recording state of the traveling pattern recording part in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the required electric power generation time calculation process in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the electric power generation possible time calculation process in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the reachability determination processing in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the electric power generation setting process in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the guidance process in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the traveling method guidance process in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the driving | running | working method guidance process with a break in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the route change travel method guidance process in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the eco-driving method guidance process in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the travel pattern creation process in the 1st Embodiment of this invention. It is a 2nd figure which shows the recording state of the running pattern recording part in the 1st Embodiment of this invention. It is a 3rd figure which shows the recording state of the running pattern recording part in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the cruising distance calculation process in the 1st Embodiment of this invention. It is a flowchart which shows the operation | movement of the interruption process in the 1st Embodiment of this invention. It is a figure which shows the subroutine of the cruising distance calculation process of the interruption process in the 1st Embodiment of this invention. It is a figure for demonstrating the cruising distance in the 1st Embodiment of this invention. It is a figure for demonstrating the cruising time in the 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the control part in the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this case, a hybrid vehicle as an electrically driven vehicle will be described.

  FIG. 2 is a conceptual diagram of the hybrid vehicle according to the first embodiment of the present invention.

  In the figure, WL and WR are wheels functioning as drive wheels, and 11 is a drive motor (M) as a drive source connected to the wheels WL and WR and as a first electric machine. By transmitting the drive motor torque generated by driving the drive motor 11 to the wheels WL and WR, the hybrid vehicle can be run.

  When the hybrid vehicle is a front wheel drive system, the wheels WL and WR are front wheels, the rear wheels are driven wheels, and when the hybrid vehicle is a rear wheel drive system, the wheels WL and WR are rear wheels. The front wheel becomes the driven wheel. When the hybrid type vehicle is a four-wheel drive system, the drive motor 11 is connected to the front wheels and the rear wheels. In the present embodiment, the drive motor 11 is connected to the wheels WL and WR, and the wheels WL and WR are rotated by driving the drive motor 11, but each wheel of the front and rear wheels is rotated. The drive motors can be integrated with each other and the respective drive motors can be driven independently to rotate the wheels.

  Further, 13 is connected to the drive motor 11, an inverter as a drive circuit for driving or regenerating the drive motor 11, 14 as a first power source and a battery as a power storage device, 15 A generator (G) as a second electric machine and as a second electric machine and as a power generator. The drive motor 11 is driven by the electric power supplied from the battery 14 and the generator 15.

  Reference numeral 16 denotes a plug as a connecting element connected to the battery 14, 17 denotes an inverter connected to the generator 15 to drive the generator 15, and 18 drives the generator 15. An engine (E / G) 19 serving as a drive source for supplying the engine 18 is a fuel tank that supplies gasoline as fuel (drive medium) to the engine 18.

  Each of the inverters 13 and 17 includes a DC / DC converter (not shown) as a voltage converter and a plurality of transistors (not shown) as, for example, six switching elements. The DC / DC converter changes the voltage between the drive motor 11 and the generator 15 and the battery 14. Each of the transistors is paired as a unit to form a transistor module (IGBT) of each phase, and is turned on / off by a drive signal sent from a control unit (not shown), and is supplied from the battery 14 in the inverter 13. The direct current is converted into a three-phase alternating current and supplied to the drive motor 11 to drive the drive motor 11 or the three-phase alternating current generated with the regeneration of the drive motor 11 is converted into a direct current. And is supplied to the battery 14 to charge the battery 14, or the inverter 17 converts the three-phase alternating current generated with the power generation of the generator 15 into a direct current, 14 to charge the battery 14. The battery 14 can be charged by inserting the plug 16 into an outlet of a household commercial power source or an outlet of a charging device of a charging stand (charging facility).

  In the present embodiment, the DC / DC converter is built in the inverter 13, but can be arranged independently of the inverter 13.

  In the present embodiment, a lithium ion battery is used as the battery 14. In the present embodiment, a battery is used as the power storage device, but a capacitor can be used instead of the battery.

  In the present embodiment, it is possible to drive the hybrid vehicle to the destination by supplying current to the drive motor 11, and the driving performance of the hybrid vehicle on flat roads, climbing roads, etc., and The battery 14 retains sufficient electric power so that the acceleration performance of the hybrid vehicle during acceleration can be sufficiently increased, the energy density of the battery 14 is 0.1 [kWh / kg] or more, and the output density is 1 [kW / kg] or more.

  Further, the weight of the battery 14 is set within an allowable range of the battery 14 based on the maximum output and the performance of the battery 14 that are required to ensure the power performance of the hybrid vehicle. The maximum output is calculated based on the vehicle weight and the running resistance (air resistance, rolling resistance, climbing resistance, acceleration resistance, etc.) applied to the hybrid type vehicle as the vehicle travels.

  For example, in the case of a hybrid vehicle having a vehicle weight of about 1000 [kg], the maximum output of the hybrid vehicle is 40 to 60 [kW], and the weight of the battery 14 is 40 to 60 [kg]. In a conventional electric vehicle, when the cruising distance is 300 to 500 [km], the energy required to run the electric vehicle is about 0.1 [kWh / km], so the weight of the battery 14 is 300 to 500 [km]. 500 [kg]. On the other hand, in the present embodiment, the battery 14 is charged by the generator 15 to supplement the energy required for traveling, so the weight of the battery 14 is reduced to 1/8 to 1 of that of a conventional electric vehicle. / 5.

  In the present embodiment, an internal combustion engine using gasoline as fuel is used as the engine 18, but an internal combustion engine using hydrogen or the like as fuel instead of gasoline can be used. In the present embodiment, an internal combustion engine is used to drive the generator 15, but the reciprocating piston type uses carbon dioxide gas, methane gas, or the like supplied from a high-pressure fuel tank as fuel. A carbon dioxide gas engine, a methane gas engine, or the like can be used as an expansion engine and a vaporization engine.

  Furthermore, a fuel cell is used as a power generator, and a polymer electrolyte fuel cell (PEFC), a phosphoric acid fuel cell (PAFC), a solid oxide fuel cell (SOFC), a hydrazine fuel cell, a direct fuel cell A methanol fuel cell (DMFC) or the like can be used.

By the way, the remaining battery charge SOC [%] as the remaining battery charge is used to indicate the degree of charge (charged charge) of the battery 14. When the battery 14 is further discharged, the remaining battery capacity SOC [%] is set to X ₀ [%] where the remaining minimum capacity at which the battery 14 is rapidly deteriorated due to overdischarge is X ₀ [%]. When charged, the remaining maximum capacity value at which the battery 14 is rapidly deteriorated due to overcharging is set to X _MAX [%]. The remaining minimum capacity and the remaining maximum capacity of the battery 14 are determined by the specifications of the battery 14.

In this case, if the power generation by the generator 15 is started as the remaining battery SOC [%] reaches the value X ₀ [%], the output of the generator 15 corresponds to the traveling load applied to the hybrid vehicle. Therefore, not only the control in the control unit is complicated, but also the generator 15 is increased in size and the power generation efficiency is lowered.

  Therefore, in the present embodiment, the energy consumed as the hybrid vehicle travels, that is, the consumed energy and the remaining battery SOC SOC so that the generator 15 can be driven with high power generation efficiency. %], The power generation by the generator 15 is performed.

  In this case, in order to drive the generator 15 in a state where the power generation efficiency is high, the output of the generator 15 is set so as to maintain the maximum value of the power generation efficiency or a value in the vicinity thereof, and is driven by the engine 18. Even when a carbon dioxide gas engine, a methane gas engine, or the like is used as the engine, in order to drive the generator with high power generation efficiency, the generator outputs so as to maintain the maximum value or a value in the vicinity thereof. Set and driven by the engine.

  When a fuel cell is used as a power generation device, the fuel cell is driven in a normal driving state on the characteristic curve representing the relationship between current and voltage, that is, the current vs. voltage characteristic curve, and the current falls below a predetermined value. Or the voltage is set to a predetermined value or more. For example, at the unit electrode of the fuel cell, the current is set to 0.2 [A] or less, or the voltage is set to 0.8 [V] or more.

  And in this Embodiment, the time which drives the said generator 15 in a state with high electric power generation efficiency is made into electric power generation time.

  Next, a vehicle drive device for generating power by the generator 15 in the hybrid vehicle will be described.

  FIG. 1 is a diagram showing a vehicle drive device according to a first embodiment of the present invention.

  In the figure, 21 is a control unit as a first control unit that controls the entire hybrid vehicle, and 27 is a navigation device.

  The control unit 21 includes a CPU 31 as an arithmetic device, a RAM 32 used as a working memory when the CPU 31 performs various arithmetic processes, a ROM 33 in which various data are recorded, in addition to a control program.

  The navigation device 27 includes a navigation control unit 34 as a second control unit that controls the entire navigation device 27, and the navigation control unit 34 has a CPU, a RAM, a ROM, as in the control unit 21. Etc. The drive motor 11, battery 14, generator 15, CPU 31 and the like constitute a hybrid vehicle.

  In addition to the GPS sensor 35 serving as a current position detecting unit for detecting the current position of the hybrid type vehicle, the direction of the hybrid type vehicle, the time, etc., the time detecting unit, and map data, A data recording unit 36 as an information recording unit in which the above information is recorded, a communication unit 38 as a transmission / reception unit functioning as a communication terminal, and the like are connected.

  In the map data, intersection data relating to intersections (including branching points), road data as road information relating to roads connecting the intersections and road links constituting the roads, facility data relating to various facilities, and routes are searched. Search data and the like processed for the purpose.

  The communication unit 38 receives various information such as traffic information and general information sent from a road traffic information center (not shown) such as a VICS (registered trademark) center as a first information provider. The traffic information includes traffic jam information, regulation information, parking lot information, traffic accident information, service area congestion status information, and the like, and general information includes news, weather forecasts, and the like. The communication unit 38 can also receive various information such as traffic information and general information from the information center as the second information provider. The navigation device 27, the road traffic information center, the information center, etc. constitute a navigation system.

  In addition to the inverters 13 and 17, the control unit 21 performs various displays on a screen (not shown), and a display unit as a first output unit for notifying the driver who is an operator. 43, a voice output unit 44 as a second output unit for notifying the driver by outputting a voice, an operation unit 45 for performing a predetermined input by the driver operating, a hybrid type A vehicle speed sensor 51 serving as a vehicle speed detection unit that detects the vehicle speed of the vehicle and a voltage of the battery 14, that is, a voltage detection unit that detects a battery voltage Vb is supplied to or supplied from the battery voltage sensor 52 and the battery 14. The battery current sensor 53 as a current detector for detecting the current, that is, the battery current Ib, the temperature of the battery 14, that is, the battery A battery temperature sensor 54 as a temperature detection unit for detecting the re-temperature tb, a remaining amount of gasoline supplied from the fuel tank 19 to the engine 18, that is, a remaining fuel sensor as a remaining fuel detection unit for detecting the remaining fuel amount 55 etc. are connected. The fuel type can also be detected by the fuel remaining amount sensor 55. In addition, the display unit 43 also functions as an operation unit for performing a predetermined input when operated by the driver.

  A computer is configured by the control unit 21, the navigation control unit 34, the CPU 31, and the like, and a storage device or a recording medium is configured by the data recording unit 36, the RAM 32, the ROM 33, and the like. Further, an MPU or the like can be used instead of the CPU 31 as the arithmetic unit.

  Next, the basic operation of the navigation device 27 will be described.

  First, when the navigation device 27 is activated by the operation of the operation unit 45 by the driver, the navigation information acquisition processing means of the CPU (hereinafter referred to as “navigation CPU”) of the navigation control unit 34 performs the navigation information acquisition processing. The map data is acquired by reading from the data recording unit 36 or by receiving from the information center or the like via the communication unit 38.

  Next, the matching processing means of the navigation CPU performs matching processing, reads the current position and direction from the GPS sensor 35, reads road data from the map data, and based on the current position, direction and road data, the current position is The current position is specified by determining on which road link. The display processing means of the navigation CPU performs display processing, forms a map screen on the display unit 43, and displays a current position, a map around the current position, and an orientation on the map screen.

  When the driver operates the operation unit 45 to input a predetermined point as a destination, the destination setting processing means of the navigation CPU performs destination setting processing and sets the destination.

  Then, when the driver operates the operation unit 45 to input a condition for searching for a route, that is, a search condition, the route search processing means of the navigation CPU performs a route search process, and the current position, purpose In addition to reading the location, search conditions, etc., the search data of the map data is read, and based on the current position, the destination, and the search data, the route from the starting point represented by the current position to the destination is determined based on the search conditions. Search and output route data representing the searched route. A route having the smallest total link cost assigned to each road link is set as a searched route.

  Subsequently, the guidance processing means of the navigation CPU performs guidance processing, reads the route data, displays the search route on the map screen according to the route data, and outputs the search route by voice as necessary. Provide route guidance.

  Next, the operation of the control unit 21 will be described.

  FIG. 3 is a main flow chart showing the operation of the control unit in the first embodiment of the present invention, FIG. 4 is a diagram showing a subroutine of travel pattern setting processing in the first embodiment of the present invention, and FIG. FIG. 6 is a diagram showing a subroutine of required power generation time calculation processing in the first embodiment of the present invention, and FIG. 7 is a diagram showing the recording state of the travel pattern recording unit in the first embodiment of the present invention. The figure which shows the subroutine of the electric power generation possible time calculation process in 1st Embodiment of this invention, FIG. 8 is the figure which shows the subroutine of the reachability determination process in 1st Embodiment of this invention, FIG. FIG. 10 is a diagram showing a subroutine of power generation setting processing according to the first embodiment, FIG. 10 is a diagram showing a subroutine of guidance processing according to the first embodiment of the present invention, and FIG. 11 is a diagram according to the first embodiment of the present invention. FIG. 12 is a diagram showing a subroutine of a traveling method guidance process with a break in the first embodiment of the present invention, and FIG. 13 is a route in the first embodiment of the present invention. FIG. 14 is a diagram showing a subroutine of the modified traveling method guidance process, FIG. 14 is a diagram showing a subroutine of the ecological traveling method guidance process in the first embodiment of the present invention, and FIG. 15 is a traveling pattern in the first embodiment of the present invention. FIG. 16 is a second diagram showing the recording state of the travel pattern recording unit in the first embodiment of the present invention, and FIG. 17 is a travel pattern in the first embodiment of the present invention. FIG. 18 shows a cruising distance calculation processing subroutine in the first embodiment of the present invention, and FIG. 19 shows a first embodiment of the present invention. FIG. 20 is a diagram showing a cruising distance calculation processing subroutine in the interrupt processing according to the first embodiment of the present invention, and FIG. 21 is a flowchart in the first embodiment of the present invention. FIG. 22 is a diagram for explaining the cruising distance, and FIG. 22 is a diagram for explaining the cruising time in the first embodiment of the present invention. In FIG. 21, the horizontal axis represents the cruising distances Dhv and Dev [km], the vertical axis represents the residual energy B [kWh], the horizontal axis represents the cruising time Thv and Tev [h], and the vertical axis represents The residual energy B [kWh] is taken.

  First, an information acquisition processing unit (not shown) of the CPU 31 performs an information acquisition process (step S1), and obtains the current position, map data, route data, traffic information, general information, etc. from the navigation control unit 34 for vehicle travel. Acquired by reading as information (navigation information). In addition, the information acquisition processing means acquires the information obtained by running or calculating the hybrid type vehicle and reading and collecting the information as collected information.

  In the present embodiment, the vehicle travel information is read from the navigation control unit 34. However, the map data is recorded in the ROM 33 in advance and read out from the ROM 33, or the current position and route data, as well as by the driver. Information input by the operation of the operation unit 45 is recorded in the RAM 32, read from the RAM 32, traffic information, general information, etc., and information input by the operation of the operation unit 45 by the driver is the navigation device 27. It can be received via another communication unit or the like.

  Then, the route acquisition processing means as the route setting processing means of the information acquisition processing means performs a route acquisition process as a route setting process, and reads the route data, so that the hybrid vehicle from the departure place to the destination can be obtained. Get and set the route to run.

  Next, a travel schedule presence / absence determination processing unit (not shown) of the CPU 31 performs a travel schedule presence / absence determination process and refers to the data recording unit 36 to determine whether there is a travel schedule for the set route (step). S2, S3).

  In this case, before the hybrid vehicle is driven, the driver sets the destination by operating the operation unit 45, and the navigation device 27 searches the route from the departure point to the destination as a search route. Is set in advance and recorded in the data recording unit 36.

  When there is a travel schedule, a travel pattern setting processing unit (not shown) of the CPU 31 performs a travel pattern setting process and sets a travel pattern based on the travel schedule (step S4).

  For this purpose, the travel schedule acquisition processing means of the travel pattern setting processing means performs a travel schedule acquisition process and acquires it by reading the travel schedule from the data recording unit 36 (step S4-1).

  Subsequently, the recording sheet creation processing means of the travel pattern setting processing means performs recording sheet creation processing, and creates a recording sheet by adding an index to the collected information during traveling of the hybrid type vehicle (step S4-2). .

  Next, the travel pattern recording processing means of the travel pattern setting processing means performs travel pattern recording processing, refers to the recording sheet, and creates a travel pattern based on the vehicle travel information and collected information (step S4). -3), recorded in a travel pattern recording unit (not shown) of the RAM 32.

  Each time the driver sets a destination and sets a travel schedule, a travel pattern Pti (i = 1, 2,...) Is created and sequentially recorded in the travel pattern recording unit.

  The travel pattern Pti includes information on the route from the starting point to the destination, for example, a gradient on the route (gradient θj (j = j = at each node point on the route) as shown in FIG. 1, 2, ...)), travel distance from the departure point to the destination, traffic congestion on the route (congestion level at each traffic congestion point), average vehicle speed, travel time to reach the destination, acceleration / deceleration status (route) The acceleration αm (m = 1, 2,...) At the upper acceleration point, the deceleration βn (n = 1, 2,...) At the deceleration point, the temperature, the weather, the traveling time, and the like.

  Each information is given an index such as road condition, traveling condition, ambient environment condition, etc., and is classified and recorded. The road conditions include gradients on the route, distance traveled, traffic jams on the route, etc., road conditions include average vehicle speed, travel time, acceleration / deceleration conditions, etc. , Weather, travel time, etc.

  In the present embodiment, energy consumption per distance, which will be described later, is calculated every time the hybrid type vehicle is driven according to the same driving schedule, and energy consumption per distance calculated when the hybrid type vehicle is driven last time. And the difference between the energy consumption per distance calculated when the hybrid vehicle is traveled this time and the energy addition value of each index in the travel pattern Pti when the hybrid vehicle is traveled next time is recorded. .

  Then, the travel determination processing means of the travel pattern setting processing means performs travel determination processing to determine whether or not the hybrid type vehicle is traveling (step S4-4). An index is assigned to and a recording sheet is created. In this way, the travel pattern Pti can be set.

  Subsequently, the required power generation time calculation processing means (not shown) of the CPU 31 performs the necessary power generation time calculation processing, and is necessary for traveling the hybrid vehicle to the destination according to the travel pattern set in the travel pattern setting process. A power generation time (a power generation time required to drive the hybrid vehicle as desired by the driver), that is, a necessary power generation time Tg [h] is calculated (step S5).

  For this purpose, the travel pattern information acquisition processing means of the required power generation time calculation processing means performs travel pattern information acquisition processing and reads the travel pattern information set in the travel pattern setting process, that is, travel pattern information. Obtain (step S5-1).

  Subsequently, the consumption energy calculation processing means of the required power generation time calculation processing means performs consumption energy calculation processing and is consumed while the hybrid type vehicle is driven according to the driving schedule based on the vehicle driving information and the driving pattern information. Energy per distance, that is, energy consumed per distance Eu [kWh / km] is calculated (step S5-2).

  Here, during the travel of the hybrid vehicle according to the travel schedule, the travel resistance received by the hybrid vehicle is R [N], and energy (electric power) consumed by auxiliary equipment such as an air conditioner, a light, and the navigation device 27, that is, The auxiliary machine energy consumption is set to Eh [kW], and the energy regenerated by the drive motor 11 when the hybrid type vehicle is braked, that is, the regenerative energy is set to Ek [kW], and is consumed as the hybrid type vehicle travels. Energy, that is, travel energy consumption is Ed [kW] and average vehicle speed is av [km / h], based on the travel pattern information, average vehicle speed av [km / h], travel resistance R [N ], Auxiliary machine energy consumption Eh [kW], travel energy consumption Ed [kW] and consumption per distance It is possible to calculate the energy Eu [kWh / miles].

That is, the travel energy consumption Ed [kW] is
Ed = R · av
Therefore, if the consumption energy required to drive the hybrid vehicle, that is, the required consumption energy is Et [kWh],
Et = Ed + Eh-Ek
The energy consumed per distance Eu [kWh / km] is
Eu = Et / av
= (Ed + Eh-Ek) av
= (R · av + Eh−Ek) / av
become.

The traveling resistance R [N] is defined as Ra [N] for air resistance while the hybrid vehicle is traveling according to the traveling pattern Pti, Rr [N] for rolling resistance, and Rs [N] for climbing resistance. When the acceleration resistance is Rg [N],
R = Ra + Rr + Rs + Rg
It is represented by

The air resistance Ra [N] is a resistance received from the air when the hybrid type vehicle is traveled. The air density is ρ, the air resistance coefficient is Cd, and the projection when the hybrid type vehicle is viewed from the front. When the area is A,
Ra = (1/2) ρ · Cd · A · (av) ²
Can be expressed as The rolling resistance Rr [N] is a resistance received from the road surface by friction between the tire and the road surface when the hybrid type vehicle is driven. The friction coefficient between the tire and the road surface is μr, and the mass of the hybrid type vehicle is calculated as follows. where m is the gravitational acceleration and g is
Rr = μr · m · g
Can be expressed as The uphill resistance Rs [N] is a resistance generated when the hybrid vehicle travels on the uphill road.
Rs = m · g · Σsinθj
Can be expressed as The acceleration resistance Rg [N] is a resistance generated as the hybrid vehicle is accelerated.
Rg = m · g · Σαm
Can be expressed as

  The auxiliary machine energy consumption Eh [kW] can be calculated based on the temperature, weather, travel time, and the like, and the regenerative energy Ek [kW] can be calculated based on the deceleration and the like.

  The average vehicle speed av [km / h] can be estimated by referring to the past travel history of the hybrid type vehicle recorded in the RAM 32 based on the current travel state.

  Next, the residual energy calculation processing means of the necessary power generation time calculation processing means performs a residual energy calculation process to calculate a residual energy B [kWh] representing the energy remaining in the battery 14 (FIG. 1) (step S5- 3).

  For this purpose, the remaining energy calculation processing means reads the battery voltage Vb detected by the battery voltage sensor 52, the battery current Ib detected by the battery current sensor 53, and the battery temperature tb detected by the battery temperature sensor 54, The remaining battery charge SOC [%] is calculated.

Subsequently, the remaining energy calculation processing means determines the remaining battery SOC [%], the total battery capacity Qb determined by the specifications of the battery 14, the remaining minimum capacity value X ₀ , the remaining maximum capacity value X _MAX and the battery 14 Residual energy B [kWh] based on the correction coefficient γ accompanying the deterioration
B = γ · ((SOC−X ₀ ) / (X _MAX −X ₀ )) · Qb
Is calculated.

  The RAM 32 records the use history (use period, etc.) of the battery 14, the charge / discharge history (charge count, discharge count, charge amount, discharge amount, etc.) and the like, and the correction coefficient γ is the use history and charge / discharge history. The residual energy calculation processing means reads out the use history and the charge / discharge history from the RAM 32 and calculates the correction coefficient corresponding to the use history and the charge / discharge history when calculating the residual energy B [kWh]. Read γ.

Subsequently, the time calculation processing means of the necessary power generation time calculation processing means performs time calculation processing, and energy consumption per distance Eu [kWh / km], remaining energy B [kWh], travel distance D [km] in the travel schedule And the output P [kW] of the generator 15 is read, and the required power generation time Tg [h]
Tg = (Eu · D−B) / P
Is calculated (step S5-4).

  Next, the power generation possible time calculation processing means (not shown) of the CPU 31 performs power generation possible time calculation processing, and the remaining energy B [kWh] of the battery 14 at the present time and the fuel remaining amount detected by the current fuel remaining amount sensor 55. The time during which the generator 15 can generate power, that is, the power generation possible time Ta [h], while the hybrid vehicle is traveling to the destination with F [L] and energy consumption per distance Eu [kWh / km] as the power generation conditions. Calculate (step S6). In this case, the remaining energy B [kWh] is a first limiting factor that limits the power generation possible time Ta [h], and the remaining fuel amount F [L] is a second restriction that limits the power generation possible time Ta [h]. It becomes a limiting factor.

  For that purpose, the power generation possible time calculation processing means acquires energy consumption Eu [kWh / km] per distance (step S6-1).

Subsequently, the power generation energy calculation processing means of the power generation possible time calculation processing means performs power generation energy calculation processing, reads the output P [kW] and the average vehicle speed av [km / h] of the generator 15, and generates power generation energy per distance. That is, power generation energy Gu [kWh / km] per distance
Gu = P / av
Is calculated (step S6-2).

Next, the time calculation processing means of the power generation possible time calculation processing means performs time calculation processing, drives the generator 15 at the output P [kW], and causes the hybrid vehicle to travel at the average vehicle speed av [km / h]. The first time Tb [h] until the residual energy B [kWh] becomes 0 (zero) when power is generated
Tb = (B / (Eu-Gu)) / av
Is calculated. In addition, when the engine 18 is driven, the time calculation processing means has a heat generation amount (thermal energy) per unit amount of gasoline as Hf [kWh / L] and a heat generation efficiency of the generator 15 as η. Second time Tf [h] until the remaining fuel amount F [L] becomes 0 when the generator 15 is driven with the output P [kW] to generate power
Tf = F · Hf · η / P
Is calculated.

  Then, the time calculation processing means calculates the shorter one of the first and second times Tb and Tf [h] as the power generation possible time Ta [h] (step S6-3).

  Subsequently, the reachability determination processing means as the first traveling availability determination processing means (not shown) of the CPU 31 and the first guidance necessity determination processing means is as the first traveling availability determination processing and When the reachability determination process is performed as the first guidance necessity determination process, and the hybrid vehicle is driven by driving the generator 15, the hybrid as the driver desires while generating power with the generator 15. It is determined whether or not the type vehicle can be run, in this case, whether or not the destination can be reached (steps S7 and S8).

  For this purpose, the reachability determination processing means reads the power generation possible time Ta [h] and the necessary power generation time Tg [h], and determines whether the power generation possible time Ta [h] satisfies the first arrival condition. Judgment is made based on whether or not the required power generation time Tg [h] is exceeded (step S7-1). When the power generation possible time Ta [h] is equal to or longer than the necessary power generation time Tg [h] and the first arrival condition is satisfied, the reachability determination processing means reads the travel time Td [h] of the travel pattern Pti, Whether or not the second reaching condition is satisfied is determined based on whether or not the traveling time Td [h] is equal to or longer than the necessary power generation time Tg [h] (step S7-2). When the travel time Td is equal to or longer than the required power generation time Tg [h] and the second arrival condition is satisfied, the reachability determination processing means drives the generator 15 to travel the hybrid vehicle. It is determined that the destination can be reached, that is, the destination can be reached (step S7-3). When the power generation possible time Ta [h] is shorter than the necessary power generation time Tg [h] and the first arrival condition is not satisfied, or when the travel time Td [h] is shorter than the necessary power generation time Tg [h] and the second arrival time When the condition is not satisfied, the reachability determination processing means determines that the destination cannot be reached even if the hybrid vehicle is driven by driving the generator 15, that is, it is not reachable ( Step S7-4).

When it is determined in the reachability determination processing that it is reachable, the power generation setting processing means (not shown) of the CPU 31 performs the power generation setting processing, and at the timing (time) when the hybrid vehicle reaches the destination. 14, so that the remaining power B [kWh] becomes 0, so that the remaining battery SOC [%] becomes the remaining minimum capacity value X ₀ [%], that is, the remaining energy B [kWh] becomes 0), that is, By setting the power generation start timing ts and the power generation end timing, that is, the power generation end timing te, the power generation time (power generation section) from the power generation start timing ts to the power generation end timing te is set (step S9).

  For this purpose, the power generation setting information acquisition processing means of the power generation setting processing means performs power generation setting information acquisition processing and acquires the necessary power generation time Tg [h] and travel time Td [h] by reading them as power generation setting information. (Step S9-1), the first power generation start / end time setting processing means of the power generation setting processing means performs the first power generation start / end time setting processing and sets the value Td (travel time Td) at the power generation end timing te. [H]) is set (set), and a power generation start timing ts is set by setting a value (te−Tg (a value obtained by subtracting the necessary power generation time Tg [h] from the power generation end timing te)). Is calculated (step S9-2).

  Subsequently, the setting mode determination processing means of the power generation setting processing means performs the setting mode determination processing, and the driver operates the operation unit 45 (FIG. 1) or by voice input, and generates power generation start timing ts and power generation. It is determined whether or not the mode for manually setting the end timing te, ie, the manual setting mode is selected (step S9-3).

  When the driver does not select the manual setting mode, the power generation start / end time determination processing means of the power generation setting processing means performs power generation start / end time determination processing and is set in the first power generation start / end time setting processing The generated power generation start timing ts is determined as the power generation start timing ts, and the power generation end timing te set in the first power generation start / end time setting process is determined as the power generation end timing te (step S9-4).

Further, when the driver selects the manual setting mode, the input guidance processing means of the power generation setting processing means performs the input guidance processing, and the display unit 43 allows the driver to perform manual setting different from the power generation start timing ts. Guidance is made to input the power generation start timing ts ^* for the mode (step S9-5).

When the driver operates the operation unit 45 or inputs the power generation start timing ts ^* by voice input, the second power generation start / end time setting processing means of the power generation setting processing means performs a start and end time setting process, the value to the power generation start timing ts ^* ts ^* (power generation start timing ts ^*) set the (set), and the power generation end timing te ^* to the value for another manual configuration mode (ts ^* + Tg The power generation end timing te ^* is calculated by setting (a value obtained by adding the power generation start timing ts ^* and the necessary power generation time Tg [h]) (step S9-6).

Subsequently, the generator start and end time determination processing means, by comparing the power generation start timing ts ^* a power generation start timing ts, whether the electric start timing ts ^* is before the power generation start timing ts (ts ^* <determine ts) (step S9-7), when the power generation start timing ts ^* is before the power generation start timing ts, the second set in the power generation start and end time setting process the generation start timing ts ^* It is determined as the power generation start timing ts, and the power generation end timing te ^* set in the second power generation start / end time setting process is determined as the power generation end timing te (step S9-8).

When the power generation start timing ts ^* is not earlier than (or after) the power generation start timing ts, the power generation start / end time determination processing means sets the power generation set in the first power generation start / end time setting process. The start timing ts is determined as the power generation start timing ts, and the power generation end timing te set in the first power generation start / end time setting process is determined as the power generation end timing te (step S9-4).

Thus, in the present embodiment, the power generation start timing ts and the power generation end timing te can be set manually, and the manually set power generation start timing ts ^* is based on the power generation start timing ts. If it is before, since the power generation start timing ts ^* is determined as the power generation start timing ts, the power generation by the generator 15 can be started earlier and can be ended earlier.

  In this way, when the power generation setting process is performed, the power generation processing unit (not shown) of the CPU 31 performs the power generation process, and performs power generation by the generator 15 from the power generation start timing ts to the power generation end timing te (step). S10). That is, the power generation processing means starts power generation by the generator 15 at the power generation start timing ts, and ends power generation by the power generator 15 at the power generation end timing te.

  Therefore, the power generation processing means determines whether the current time is within the range of the power generation time from the power generation start timing ts to the power generation end timing te, and if the current time is within the range of the power generation time, When the power is generated by the generator 15 and the current time is not within the range of the power generation time, the EV mode travel processing means (not shown) of the CPU 31 performs the EV mode travel processing and drives the generator 15 without driving the generator 15. 11 is driven to drive the hybrid vehicle.

  At this time, the notification processing means (not shown) of the CPU 31 performs notification processing, and based on an instruction from the power generation processing means, displays the power generation time on the screen of the display unit 43 or generates power by the generator 15. The driver is notified by turning on or blinking an operation indicator lamp indicating that the vehicle is driving.

  Further, when it is determined that it is not reachable in the reachability determination process, the guidance processing means (not shown) of the CPU 31 performs the guidance process so that the hybrid vehicle can run as the driver desires. In this case, guidance is provided to the driver so that the destination can be reliably reached (step S11).

  For this purpose, the charging intention determination processing means of the guidance processing means performs charging intention determination processing to determine whether or not the driver is willing to charge the battery 14 (steps S11-1 and S11-2). That is, the notification processing unit forms a map screen on the display unit 43 based on an instruction from the charging intention determination processing unit, displays the current position and the surrounding charging stations, and cannot reach the destination. Is displayed to inquire the driver whether he / she intends to charge the battery 14 at the charging station. In this case, in addition to the display on the display unit 43, the notification processing unit notifies the driver by outputting a voice to the effect that the destination cannot be reached in the audio output unit 44, and charging the driver. An inquiry is made as to whether there is an intention to charge the battery 14 at the stand.

  The charging intention determination processing unit determines whether or not there is an intention to charge the battery 14 at the charging stand based on the operation of the operation unit 45 by the driver.

  The charging intention determination processing means can inquire of the driver whether he / she has an intention to supply gasoline to the engine 18 instead of an intention to charge. In that case, the notification processing unit forms a map screen on the display unit 43 based on an instruction from the charging intention determination processing unit, displays the current position and the gas station, and indicates that the destination cannot be reached. The display informs the driver and asks the driver whether he is willing to refuel at the gas station.

  When the driver is willing to charge the battery 14, the power generation instruction processing means of the guidance processing means performs power generation instruction processing and instructs power generation according to the distance from the current position to the charging station (step S11-3). ). For this purpose, the notification processing means displays a message such as “Charging is required after ○ minutes” on the screen of the display unit 43 based on an instruction from the power generation instruction processing means.

  In addition, the said notification process means can notify a driver | operator of the subsequent cruising distance as needed, when charge is performed.

  Further, when the driver does not intend to charge the battery 14, the traveling method guidance processing means of the guidance processing means performs the traveling method guidance processing and guides the traveling method so as to surely reach the destination. (Step S11-4).

  For this purpose, the traveling method change availability determination processing means of the traveling method guidance processing means performs a traveling method change availability determination processing and performs a predetermined display on the screen of the display unit 43 to charge the battery 14 in order to charge the battery 14. Whether or not the person can take a break and whether or not the route can be changed, and whether or not the person can take a break and change the route based on the operation of the operation unit 45 by the driver. It is determined whether or not it is possible (steps S11-4-1 to S11-4-3).

  In this case, in order to inquire whether the driver can take a break, the travel method change possibility determination processing means displays on the screen of the display unit 43 "Let's take a break. To display a message such as “You can change the route to the driver”, the screen of the display unit 43 displays “Get off the highway and drive in the city” You can reach the destination by driving through the city. " Then, when it is not possible to take a break or change the route, the means for determining whether or not the driving method can be changed is “Let the vehicle speed lower. You can reach the destination by lowering the vehicle speed.” Etc. are displayed.

  When the user can take a break, the traveling method guidance processing unit with a break of the traveling method guidance processing unit performs a traveling method guidance process with a break, guides the traveling method with a break, and the driver takes a break. The generator 15 is driven and the battery 14 is charged to ensure the remaining battery charge SOC [%] (step S11-4-4).

  Further, when the route can be changed, the route change travel method guidance processing means of the travel method guidance processing means performs a route change travel method guidance process, guides the travel method for changing the route, and changes the route. The battery 14 is charged by reducing the travel load applied to the hybrid vehicle to reduce the energy consumption Eu [kWh / km] per distance, or increasing the travel time Td [h] while charging the battery 14. The remaining battery charge SOC [%] is secured (step S11-4-5).

  If it is not possible to take a break and change the route, the eco travel method guidance processing means of the travel method guidance processing means performs eco travel method guidance processing, guides the eco travel method, and consumes per distance. The remaining amount of battery SOC [%] of the battery 14 is secured by reducing the energy Eu [kWh / km] (step S11-4-6).

  Next, based on FIG. 12, operation | movement of the said travel method guidance processing means with a break is demonstrated.

First, the required break time calculation processing means of the travel method guidance processing means with a break performs a required break time calculation process, reads the travel time Td [h] and the required power generation time Tg [h], and reads the required break time Trn [ h]
Trn = Tg−Td
Is calculated (step S11-4-4-1).

  Next, the break instruction processing means of the travel method guidance processing means with a break performs a break instruction process, and displays the necessary break time Trn [h] and a break place as a break point on the screen of the display unit 43. The user (step S11-4-4-2), instructing the navigation device 27 to perform route guidance to the resting place (step S11-4-4--3), and the hybrid vehicle reaches the resting place. It waits to do (step S11-4-4-4). The resting place is a predetermined facility, for example, a restaurant that is a facility for eating, a shopping center that is a facility for shopping, a facility for taking a walk, etc. in accordance with instructions from the driver. A park or the like is selected.

  Subsequently, when the hybrid type vehicle reaches the break place, the break execution processing means of the traveling method guidance processing means with break performs the break execution process, and while the driver is taking a break at the break place, the generator 15 Is continuously driven to charge the battery 14. While the battery 14 is being charged, the break execution processing means uses the communication unit 38 of the navigation device 27 as a power generation state based on the elapsed time from the start of the break and the remaining battery SOC [%]. The mobile phone or the like is appropriately notified (step S11-4-4-5).

Then, the power generation stop processing means of the travel method guidance processing means with a break performs power generation stop processing and determines whether or not the remaining battery charge SOC [%] has reached the value X _MAX [%] (step S11-4-). 4-6) When the remaining battery SOC [%] reaches the value X _MAX [%], the driving of the generator 15 is stopped and the power generation is stopped (step S11-4-4-7), and the battery 14 charging ends.

When the remaining battery SOC [%] does not reach the value X _MAX [%], the power generation stop processing means waits for the necessary rest time Trn [h] to elapse (step S11-4-4-8). ) When the necessary break time Trn [h] has elapsed, the driving of the generator 15 is stopped, the power generation is stopped (step S11-4-4-7), and the charging of the battery 14 is ended.

  In this case, since the power generation is performed by the generator 15 while the driver is resting at the resting place for the necessary rest time Trn [h], the remaining battery SOC [%] of the battery 14 can be secured. .

  Next, the operation of the route change travel method guidance processing means will be described with reference to FIG.

  First, the route candidate extraction processing means of the route change travel method guidance processing means performs route candidate extraction processing, and the travel load is smaller or the travel time is longer than when the hybrid type vehicle is driven along the current route. The route candidate assumed, that is, the route candidate is extracted (step S11-4-5-1).

  Routes that are assumed to have a low travel load or a long travel time include routes that have a low average vehicle speed av [km / h], routes that have a high regeneration efficiency, routes that have a low travel resistance R [N], etc. Routes with a low average vehicle speed av [km / h] include roads that pass through urban areas, ordinary roads, roads with many traffic lights, roads with high intersection density, roads with limited speed, roads with a small width, etc. Routes with high regeneration efficiency include sloped roads, and routes with low running resistance R [N] include paved roads. The paved road includes a road paved with a paving material having a low coefficient of friction among paving materials such as asphalt, gravel and concrete.

  Next, the route change processing means of the route change travel method guidance processing means performs route change processing, and for each extracted route candidate, the travel time Tds (s = 1, 2,...) [H] and the necessary power generation time. Tgs (s = 1, 2,...) [H] is calculated, and a route whose travel time Tds [h] is closest to the required power generation time Tgs [h] is selected from the route candidates (step S11-4-5). -2), it is determined whether or not the travel time Tds [h] is equal to or longer than the required power generation time Tgs [h] (step S11-4-5-3), and the travel time Tds [h] is determined as the required power generation time Tgs [h]. In the case above, the route candidate is determined as a route (step S11-4-5-4).

  For this purpose, the travel time calculation processing means of the route change processing means performs travel time calculation processing, transmits the starting point and end point of each route candidate to the navigation device 27, and the starting point of each route candidate from the navigation device 27. The travel time Tds [h] is calculated for each route candidate by reading the route from the to the end point and the travel time Tds [h].

The required power generation time calculation processing means of the route change processing means performs the required power generation time calculation processing, reads the vehicle travel information for each of the route candidates, and consumes energy per distance Eus (s = 1, 2,...) [KWh / km] is calculated, and the energy consumption per distance Eus [kWh / km], the remaining energy B [kWh], the travel distance D [km] in the travel schedule, and the output P [kW] of the generator 15 are read. Necessary power generation time Tgs (s = 1, 2,...) [H]
Tgs = (Eus · D−B) / P
Is calculated.

  In this case, since the route is changed and the hybrid type vehicle can travel along a route in which the travel time Tds [h] is equal to or longer than the required power generation time Tgs [h], the remaining battery charge SOC [%] of the battery 14 And can reach the destination.

  In addition, when the intermediate destination which is a stop point exists on a path | route, when changing a path | route, it is preferable to change an intermediate destination collectively. In that case, the corresponding intermediate destination is selected according to the purpose for which the intermediate destination before the route change was selected.

  Next, the operation of the eco travel method guidance processing means will be described with reference to FIG.

  First, the route analysis processing means of the eco-driving method guidance processing means performs route analysis processing, reads vehicle driving information, analyzes the route of the driving schedule, and recognizes road speed limit, gradient, traffic lights, intersections, etc. (Step S11-4-6-1).

  Next, the driving pattern setting processing means of the eco-driving method guidance processing means performs driving pattern setting processing, standardizes the driving load within the range of the speed limit of the road in the route, and the driving load is small. A driving pattern that allows the hybrid vehicle to travel from the departure place to the destination is set (step S11-4-6-2). In this case, in the driving pattern, the vehicle speed is lowered within a range that does not hinder the flow of the vehicle on the road on the route, sudden acceleration, sudden deceleration, etc. are suppressed, or the set temperature of the air conditioner is lowered.

  And the said driving pattern setting process means is the same as the driving time calculation process in the said route change process by the driving time Tdu [h] and required power generation time Tgu [h] at the time of driving | running | working the said route with the set driving pattern It is calculated by the method (step S11-4-6-3), and it is determined whether or not the travel time Tdu [h] is equal to or longer than the necessary power generation time Tgu [h] (step S11-4-6-4). When Tdu [h] is equal to or longer than the required power generation time Tgu, the set driving pattern is determined as a driving pattern for driving the hybrid vehicle (step S11-4-6-5).

  Subsequently, the travel mode determination processing means of the eco travel method guidance processing means performs travel mode determination processing to determine whether or not the driver has selected the eco travel mode by operating the operation unit 45 (step S11-). 4-6-6). When the driver selects the eco travel mode, the eco travel processing means of the eco travel method guidance processing means performs eco travel processing and reduces the drive motor torque of the drive motor 11 in accordance with the drive pattern, an air conditioner, etc. The load of the auxiliary machine, that is, the load of the auxiliary machine is reduced (step S11-4-6-7).

  In addition, when the driver does not select the eco-driving mode, the instruction processing means of the eco-driving method guidance processing means performs instruction processing, performs eco-driving to the driver, and reduces the accelerator opening of an accelerator pedal (not shown). Or instructing the operation method to reduce the load on the auxiliary machine (step S11-4-6-8). For this purpose, the notification processing means displays on the screen of the display unit 43 based on the instruction from the instruction processing means, “Please keep the vehicle speed within ○ (km / h) to reach the destination reliably. ”,“ Do not accelerate rapidly to reach the destination reliably ”,“ Adjust the temperature of the air conditioner to ○ degrees to reach the destination reliably ” To do.

  In this case, the hybrid type vehicle can be driven in accordance with an operation pattern in which the running time Tdu [h] is equal to or longer than the required power generation time Tgu [h], so that the remaining battery charge SOC [%] of the battery 14 can be secured. Can reach the destination.

  Next, a case where it is determined in the travel schedule presence / absence determination process that there is no travel schedule will be described.

  When there is no travel schedule, the travel pattern creation processing means (not shown) of the CPU 31 performs travel pattern creation processing to create a travel pattern (step S12).

  For this purpose, the temporary travel pattern setting processing means of the travel pattern creation processing means performs a temporary travel pattern setting process and sets a temporary travel pattern based on the collected information (step S12-1).

  Subsequently, the travel pattern search processing means of the travel pattern creation processing means performs a travel pattern search process, and searches for a new travel pattern Ptn based on the temporary travel pattern (step S12-2). For this purpose, the travel pattern search processing means refers to the travel pattern recording unit of the RAM 32, performs a search using an index, and records the temporary travel pattern Pti representing the daily travel pattern recorded in the travel pattern recording unit. It is determined whether there is a travel pattern similar to the travel pattern. In addition, as shown in FIG. 16, the travel pattern recording unit records a travel pattern Pti each time a travel schedule is set in the travel pattern creation process.

  And when there is a travel pattern similar to the provisional travel pattern, the travel pattern determination processing means of the travel pattern creation processing means performs the travel pattern determination processing, and combines the information of similar travel patterns for each index, A new travel pattern Ptn is created and determined (step S12-3). In this case, as shown in FIG. 17, the new travel pattern Ptn includes travel pattern information on the road condition of the travel pattern Pt1, the travel condition of the travel pattern Pt2, and the ambient environment condition of the travel pattern Pt3.

  Next, a cruising distance calculation processing means as a first travelable index calculation processing means (not shown) of the CPU 31 performs a cruising distance calculation process as a first travelable index calculation process, and the remaining energy B [ The cruising distance as the first travelable index is calculated based on [kWh] (step S13).

  For this purpose, the consumption energy calculation processing means of the cruising distance calculation processing means performs the consumption energy calculation process, and acquires the travel pattern information created in the travel pattern creation process, that is, by reading the created travel pattern information. (Step S13-1), energy consumption Eu ′ [kWh / km] per distance consumed while the hybrid vehicle is traveling is calculated based on the created travel pattern information (Step S13-2).

  In the present embodiment, the created travel pattern information includes the travel pattern information of the road condition of the travel pattern Pt1, the travel condition of the travel pattern Pt2, and the ambient environment condition of the travel pattern Pt3, so the road condition of the travel pattern Pt1. The energy consumption value Eu [kWh / km] calculated in the required power generation time calculation process when the energy is added to each energy value included in the traveling condition of the traveling pattern Pt2 and the surrounding environment condition of the traveling pattern Pt3. By adding to, energy consumption per distance Eu ′ [kWh / km] for the created traveling pattern can be calculated.

Subsequently, the residual energy calculation processing means of the cruising distance calculation processing means performs a residual energy calculation process to calculate the residual energy B [kWh] of the battery 14 (step S13-3), and the cruising distance calculation processing means The distance calculation processing means performs the distance calculation processing, reads the consumed energy Eu ′ [kWh / km] and the remaining energy B [kWh] per distance, and the cruising distance Dev [km]
Dev = B / Eu '
Is calculated (step S13-4).

Next, a cruising time calculation processing means as a second travelable index calculation processing means (not shown) of the CPU 31 performs a cruising time calculation process as a second travelable index calculation process, and is based on the created travel pattern information. The average vehicle speed av [km / h] is calculated, and the cruising time Tev [h] as the second travelable index is calculated based on the cruising distance Dev [km] and the average vehicle speed av [km / h].
Tev = Dev / av
Is calculated (step S14).

  The travelable index notification processing means of the notification processing means performs a travelable index notification process and displays the cruising distance Dev [km] and the cruising time Tev [h] on the screen of the display unit 43 to the driver. Notification (step S15), and prompts the driver to input a travel target indicating how much (how much distance or how long) the hybrid vehicle is to travel.

  The travelable index notification processing means forms a map screen on the display unit 43, and prompts the driver to input a travel target by displaying the current position and reachable position on the map screen.

  Subsequently, when the driver operates the operation unit 45 or inputs a travel target by distance or time by voice input, the power generation possible time calculation processing means of the CPU 31 determines the remaining energy B of the battery 14 at the present time. The power generation possible time Ta ′ [h] while the hybrid type vehicle is traveling to the destination is set with [kWh], the current fuel remaining amount F [L], and the energy consumption per distance Eu ′ [kWh / km] as power generation conditions. Calculate (step S16). In this case, the remaining energy B [kWh] is the first limiting factor that limits the power generation possible time Ta ′ [h], and the remaining fuel amount F [L] is the first limiting factor that limits the power generation possible time Ta ′ [h]. 2 is a limiting factor.

  Therefore, the power generation energy calculation processing means of the power generation possible time calculation processing means, as described above, generates power generation energy Gu per distance based on the output P [kW] of the generator 15 and the average vehicle speed av [km / h]. [KWh / km] is calculated, and the time calculation processing means of the power generation possible time calculation processing means calculates the first time Tb [h] until the remaining energy B [kWh] becomes 0, and the engine 18 Based on the calorific value (thermal energy) Hf [kWh / L] of gasoline per unit amount when the engine is driven and the heat generation efficiency η of the generator 15 until the remaining fuel amount F [L] becomes zero. Time Tf [h] is calculated. Then, the time calculation processing means calculates the shorter one of the first and second times Tb and Tf [h] as the power generation possible time Ta ′ [h].

  Subsequently, the travel target achievement availability determination processing means as the second travel availability determination processing means (not shown) of the CPU 31 and the second guidance necessity determination processing means is as the second travel availability determination processing. In addition, in this case, it is possible to run the hybrid vehicle as desired by the driver while performing the power goal achievement determination processing as the second guidance necessity determination processing, It is determined whether or not the driving target input by the driver can be achieved. For example, when the distance input by the driver is Le [km], it is determined whether or not the hybrid vehicle can travel the distance Le [km] while generating power by the generator 15 (steps S17 and S18). ).

For this purpose, the travel target achievement possibility determination processing means acquires the power generation possible time Ta ′ [h] and the average vehicle speed av [km / h], and the cruising distance Dhv [km].
Dhv = Ta '· av
And whether the hybrid type vehicle can travel the distance Le [km] is determined based on whether the cruising distance Dhv [km] is equal to or longer than the distance Le [km]. When the cruising distance Dhv [km] is equal to or longer than the distance Le [km], the travel target achievement determination processing means drives the generator 15 so that the hybrid vehicle can travel the distance Le [km]. If it is determined that the travel target can be achieved and the cruising distance Dhv [km] is shorter than the distance Le [km], the hybrid vehicle travels the distance Le [km] even if the generator 15 is driven. It is determined that the driving target cannot be achieved.

  When it is determined in the travel target achievement possibility determination process that the travel target can be achieved, the power generation setting processing means of the CPU 31 determines that the hybrid vehicle has a distance Le [km] as in the power generation setting process in step S9. By setting the power generation start timing ts ′ and the power generation end timing te ′ so that the battery 14 is used up at the timing of ending the travel, the power generation time required to travel the hybrid vehicle to the destination is set (step S19). Subsequently, the power generation processing means of the CPU 31 performs power generation by the generator 15 from the power generation start timing ts to the power generation end timing te (step S20).

  Further, when it is determined in the travel target achievement possibility determination process that the travel target cannot be achieved, the guidance processing means of the CPU 31 can cause the hybrid vehicle to travel as desired by the driver. In this case, guidance is provided to the driver so that the vehicle can reliably travel the distance Le [km] (step S11). In the guidance process, the traveling method guidance process with a break, the route change traveling method guidance process, and the ecological traveling method guidance process as described above are performed so that the hybrid vehicle can travel the distance Le [km] with certainty. Is done.

  In the present embodiment, when there is a travel schedule, it is determined whether or not the destination can be reached based on the travel pattern information of the set travel pattern Pti. Since it is determined whether or not the driving target of the driver can be achieved based on the driving pattern information, the driver may desire the current battery SOC (%) regardless of the driving schedule. It can be determined whether or not the hybrid vehicle can be driven.

  By the way, in the present embodiment, when the hybrid vehicle is traveling by driving the generator 15 as necessary, the driver operates the operation unit 45, so that the current cruising distance and cruising time. You can know.

  That is, when the driver operates the operation unit 45, the interrupt processing means (not shown) of the CPU 31 performs the interrupt processing, calculates the cruising distance and cruising time, and displays them on the screen of the display unit 43 to the driver. Notice.

  For this purpose, the cruising distance calculation processing means as the first travelable index calculation processing means of the interrupt processing means performs cruising distance calculation processing as the first travelable index calculation processing, and the driver operates the operation unit 45. The cruising distances Dhv and Dev [km] at the time when is operated are calculated (step S21).

For this purpose, the consumption energy calculation processing means of the cruising distance calculation processing means performs a consumption energy calculation process, and travel resistance R [N], auxiliary machine energy consumption Eh [kW] calculated based on the vehicle travel information, Based on the regenerative energy Ek [kW] and the average vehicle speed av [km / h], energy consumed per distance Eu [kWh / km] consumed while the hybrid vehicle is running
Eu = (R · av + Eh−Ek) / av
Is calculated (step S21-1).

  The average vehicle speed av [km / h] can be estimated by referring to the past travel history of the hybrid type vehicle recorded in the RAM 32 based on the current travel state.

Next, the remaining energy calculation processing means of the cruising distance calculation processing means performs a remaining energy calculation process, and the remaining battery SOC [%], the total battery capacity Qb, the remaining minimum capacity value X ₀ , and the remaining maximum capacity value. Based on X _MAX and the correction coefficient γ accompanying the deterioration of the battery 14, the remaining energy B [kWh]
B = γ · (SOC−X ₀ ) / (X _MAX −X ₀ ) · Qb
Is calculated (step S21-2).

Subsequently, the power generation energy calculation processing means of the cruising distance calculation processing means performs power generation energy calculation processing, and based on the output P [kW] and the average vehicle speed av [km / h] of the power generator 15, Generated energy Gu [kWh / km] per distance generated by driving
Gu = P / av
Is calculated.

  Then, the power generation possible time calculation processing means of the cruising distance calculation processing means performs power generation possible time calculation processing, and consumes energy per distance Eu [kWh / km], residual energy B [kWh], and power generation energy Gu [kWh per distance]. / Km] and average vehicle speed av [km / h] are read, and the current remaining energy B [kWh] of the battery 14, the current fuel remaining amount F [L], and the energy consumption Eu [kWh / km] per distance are generated. As a condition, a power generation possible time Ta [h] by the generator 15 while the hybrid vehicle is traveling to the destination is calculated (step S21-3).

For this purpose, the power generation possible time calculation processing means performs the first time Tb [h] until the remaining energy B [kWh] becomes zero.
Tb = (B / (Eu-Gu)) / av
Is calculated. Further, the power generation possible time calculation processing means is based on the calorific value (thermal energy) Hf [kWh / L] per unit amount of gasoline when the engine 18 is driven, and the remaining fuel amount F [L] of the generator 15. Second time Tf [h] until 0 becomes 0
Tf = F · Hf · η / P
Is calculated.

  Then, the power generation possible time calculation processing means calculates the shorter one of the first and second times Tb and Tf [h] as the power generation possible time Ta [h].

Subsequently, the distance calculation processing means of the cruising distance calculation processing means performs distance calculation processing to calculate the power generation energy Gt [kWh] generated when the generator 15 is driven for the power generation possible time Ta [h]. Based on the power generation energy Gt [kWh], energy consumption per distance Eu [kWh / km], and residual energy B [kWh], the cruising distance Dhv [ km]
Dhv = (B + Gt) / Eu
, And cruising distance Dev [km] when the hybrid vehicle is driven without driving the generator 15
Dev = B / Eu
Is calculated (step S21-4).

Subsequently, the cruising time calculation processing means as the second travelable index calculation processing means of the interrupt processing means performs cruising time calculation processing as the second travelable index processing, and the cruising distances Dhv, Dev [km ] And the average vehicle speed av [km / h], the cruising time Thv [h] when the hybrid vehicle is driven while driving the generator 15
Thv = Dhv / av
, And the cruising time Tev [h] when the hybrid vehicle is driven without driving the generator 15
Tev = Dev / av
Is calculated (step S22).

  Next, the notification processing means of the interrupt processing means performs notification processing and displays the cruising distances Dhv and Dev [km] and the cruising times Thv and Tev [h] on the screen of the display unit 43 to the driver. Notification is made (step S23). The cruising distances Dhv and Dev [km] and the cruising times Thv and Tev [h] are displayed as numbers on the screen, as graphs (bar graphs), or as voice output by the voice output unit 44.

  An example of the cruising distances Dhv and Dev [km] calculated in this way is shown in FIG. 21, and an example of the cruising times Thv and Tev [h] is shown in FIG.

  In this case, the weight of the hybrid vehicle is set to 1000 [kg], the average vehicle speed av [km / h] (mode LA4) is set to 31.5 [km / h], and the energy consumption Eu [kWh / km] per distance is set to 0. 0.1 [kWh / km], and when the output P [kW] of the generator 15 is 2 [kW], the residual energy B [kWh] is 4 [kWh] and the residual energy B [kWh] is In the case of 7 [kWh], the cruising distances Dhv and Dev [km] and the cruising times Thv and Tev [h] are shown.

  By the way, in the present embodiment, as described above, when there is a travel schedule, the travel pattern Pti is set based on the travel schedule, and the hybrid vehicle is traveled with the travel pattern set in the reachability determination process. It is determined whether or not the destination can be reached, and if there is no travel schedule, a travel pattern Pti is created based on the daily travel pattern, and the hybrid vehicle It is determined whether or not the driving target of the driver can be achieved when the vehicle is driven with the generated driving pattern Pti.

  Therefore, in the present embodiment, when the reachability determination process or the travel target achievement determination process is not performed, the power generation setting process, the power generation process, the guidance process, and the like cannot be performed.

  Therefore, power generation setting processing, power generation processing, guidance processing, and the like can be performed regardless of whether the hybrid vehicle can reach the destination or whether the driving target of the driver can be achieved. A second embodiment of the present invention will be described. In addition, about the thing which has the same structure as 1st Embodiment, the same code | symbol is provided and the effect of the same embodiment is used about the effect of the invention by having the same structure.

  FIG. 23 is a flowchart showing the operation of the control unit in the second embodiment of the present invention.

  First, the information acquisition processing means of the CPU 31 (FIG. 1) as an arithmetic unit obtains the current position, map data, route data, traffic information, general information, etc. from the navigation control unit 34 as the second control unit. Acquired by reading as travel information (navigation information). Further, the information acquisition processing means acquires by reading information collected and collected during the traveling of the hybrid vehicle as collected information (step S31).

  Next, the required consumption energy calculation processing means (not shown) of the CPU 31 performs the required consumption energy calculation process to calculate the required consumption energy Et [kWh] (step S32).

  In this case, the required consumption energy calculation processing means refers to the data recording unit 36 as the information recording unit, determines whether there is a travel schedule for the set route, and if there is a travel schedule, the travel pattern A travel pattern is set in the same manner as the setting process, and the required energy consumption Et [kWh] is calculated based on the vehicle travel information and the travel pattern information.

  Further, when there is no travel schedule, the required consumption energy calculation processing means creates a travel pattern in the same manner as the travel pattern creation processing, and the distance consumed while the hybrid type vehicle travels based on the created travel pattern information Hit consumption energy Eu "[kWh / km] is calculated.

  In addition, the required consumption energy calculation processing means allows the driver to drive the hybrid vehicle on the screen of the display unit 43 as the first output unit (how much distance or how long). Prompts you to enter a driving target that represents

  Then, when the driver inputs a travel target, the required consumption energy calculation processing means, based on the travel target input by the driver, consumes energy necessary to achieve the travel target, that is, required consumption energy Et. "[KWh] is calculated.

In other words, when the driver operates the operation unit 45 or inputs and sets a travel target by voice input at a distance Lx [km], the required energy consumption calculation processing means performs energy consumption per distance Eu ″ [kWh / Km] and the travel target (distance Lx [km]) set by the driver, the required energy consumption Et ″ [kWh]
Et ″ = Eu ″ · Lx
Is calculated.

In addition, when the driver operates the operation unit 45 or inputs and sets a travel target by time Tx [h] by voice input, the required consumption energy calculation processing means performs the consumption energy Eu ″ [kWh per distance]. / Km], the travel target set by the driver (time Tx [h]) and the average vehicle speed av "[km / h], the necessary energy consumption Et" [ (kWh)
Et ″ = Eu ″ · Tx · av ″
Is calculated.

When the driver does not input a travel target, the required consumption energy calculation processing means is based on the distance Ly [km] and the energy consumption per distance Eu ″ [kWh / km], which are arbitrary travel targets set in advance. Thus, the required energy consumption Et ″ [kWh] required to drive the hybrid vehicle for the distance Ly [km]
Et ″ = Eu ″ · Ly
Is calculated.

It should be noted that, based on the time Ty [h], which is an arbitrary travel target set in advance, the necessary energy consumption Et ″ [kWh] required to drive the hybrid vehicle for the time Ty [h].
Et "= Eu", Ty, av "
Can be calculated. In this case, the average speed av ″ [km / h] can be calculated based on the created travel pattern information.

  Subsequently, the residual energy calculation processing means (not shown) of the CPU 31 performs a residual energy calculation process to calculate a residual energy B [kWh] (step S33).

In this case, as in the first embodiment, the remaining battery charge SOC [%] is calculated based on the battery voltage Vb, the battery current Ib, and the battery temperature tb, the remaining battery charge SOC [%], and the total battery capacity Qb. Based on the remaining minimum capacity value X ₀ , the remaining maximum capacity value X _MAX and the correction coefficient γ, the remaining energy B [kWh]
B = γ · ((SOC−X ₀ ) / (X _MAX −X ₀ )) · Qb
Is calculated.

  Subsequently, the power generation necessity determination processing means (not shown) as the first comparison processing means of the CPU 31 performs the power generation necessity determination processing as the first comparison processing, and the required consumption energy Et ″ [kWh] and the remaining energy B [kWh] and the second electric machine as a second power source when the hybrid vehicle is driven depending on whether the required energy consumption Et ″ [kWh] is larger than the remaining energy B [kWh]. It is determined whether or not it is necessary to perform power generation by the generator 15 as a power generation device (step S34).

  In the power generation necessity determination process, when the required consumption energy Et ″ [kWh] is equal to or less than the residual energy B [kWh] and it is not necessary to generate power by the generator 15, in this embodiment, guidance to the driver is given. If it is not necessary, the EV mode travel processing means drives the drive motor 11 to drive the hybrid vehicle without driving the generator 15 (step S35).

  When the required energy consumption Et ″ [kWh] is larger than the remaining energy B [kWh] and it is necessary to generate power by the generator 15, the second CPU 31 is used as a third travelability determination processing means. The third guidance necessity judgment processing means (not shown) as the comparison processing means performs a third guidance necessity judgment processing as the third traveling availability judgment processing and as the second comparison processing, In the present embodiment, whether the hybrid vehicle can be driven as desired by the driver while generating power by the generator 15 when the vehicle 15 is driven to drive the hybrid vehicle. It is determined whether guidance for the person is necessary (step S36).

  For this purpose, the guidance necessity determination processing means compares the required consumption energy Et ″ [kWh] with the threshold value ψ1 [kWh], and the required consumption energy Et ″ [kWh] is the threshold ψ1 [kWh]. ] It is judged whether it is larger.

  In the guidance necessity determination process, the required energy consumption Et ″ [kWh] is larger than the threshold value ψ1 [kWh], and the hybrid vehicle cannot be driven as desired by the driver while generating power with the generator 15. In this case, in this embodiment, when guidance to the driver is necessary, the guidance processing means of the CPU 31 performs guidance processing similar to that of the first embodiment, and The travel method is guided (step S37).

  In this case, the threshold value φ1 [kWh] is the energy that can be consumed when power generation is started at the current time, that is, the generated energy Gt [ kWh] is added, and is expressed by multiplying the energy consumption per distance Eu ″ [kWh / km], the average speed av ″ [km / h], and the power generation possible time Ta ″ [h].

φ1 = B + Gt
= Eu ”・ av” ・ Ta ”
The average speed av "[km / h] and the power generation possible time Ta" [h] are based on the set travel pattern information when there is a travel schedule, and based on the created travel pattern information when there is no travel schedule. Is calculated.

  In the guidance necessity determination process, when the required energy consumption Et ″ [kWh] is equal to or less than the threshold value ψ1 [kWh] and guidance to the driver is not necessary, the power generation setting processing unit of the CPU 31 has a travel schedule. If there is no travel schedule for the power generation setting process similar to step S9, the power generation time is set by performing the power generation setting process similar to step S19 and setting the power generation start timing ts and the power generation end timing te (step S38). ).

  Thus, when the power generation setting process is performed, the power generation processing unit of the CPU 31 performs power generation by the power generator 15 from the power generation start timing ts to the power generation end timing te (step S39). That is, the power generation processing means starts power generation by the generator 15 at the power generation start timing ts, and ends power generation by the power generator 15 at the power generation end timing te.

  Thus, in the present embodiment, it is determined whether or not the required consumption energy Et ″ [kWh] is greater than the remaining energy B [kWh], and the required consumption energy Et ″ [kWh] is greater than the remaining energy B [kWh]. If it is larger, the power generation setting process is performed. Therefore, regardless of whether the hybrid vehicle can reach the destination or whether the driving target of the driver can be achieved, the power generation setting process, Processing, guidance processing, etc. can be performed.

  The present invention is not limited to the above embodiments, and various modifications can be made based on the gist of the present invention, and they are not excluded from the scope of the present invention.

11 drive motor 14 battery 15 generator 31 CPU
B Residual energy Eh Auxiliary machine energy consumption Ek Regenerative energy Eu Energy consumption per distance R Running resistance

Claims (8)

A power storage device;
A power generator,
A drive motor connected to the power storage device and the power generation device and driven by electric power supplied from the power storage device and the power generation device;
Energy consumption calculation for calculating energy consumption required for running the electrically driven vehicle based on the running resistance received by the electrically driven vehicle, auxiliary machine consumed energy consumed by the accessory, and regenerated energy regenerated by the drive motor Processing means;
Residual energy calculation processing means for calculating residual energy remaining in the power storage device;
A travelable index calculation processing means for calculating a travelable index capable of traveling the electrically driven vehicle based on the consumed energy and the residual energy;
An electrically driven vehicle comprising: a notification processing means for notifying an operator of the travelable index. Calculating power generation energy generated by driving the power generation device, and having power generation possible time calculation processing means for calculating power generation possible time based on the consumed energy, residual energy and power generation energy,
The electrically driven vehicle according to claim 1, wherein the travelable index calculation processing unit calculates the travelable index based on the consumed energy, the remaining energy, and the power generation possible time.   The power generation possible time calculation processing means is the shorter of the first time until the remaining energy becomes zero and the second time until the remaining amount of fuel for driving the power generation device becomes zero. The electrically driven vehicle according to claim 2, wherein the electric power generation possible time is defined as   The electrically driven vehicle according to claim 3, wherein the power generation possible time calculation processing unit calculates the second time based on the remaining fuel amount, the amount of heat generated by the fuel, and the power generation efficiency.   The electrically driven vehicle according to any one of claims 1 to 4, wherein the travelable index is a cruising distance in which the electrically driven vehicle can travel.   The electrically driven vehicle according to any one of claims 1 to 4, wherein the travelable index is a cruising time during which the electrically driven vehicle can travel.   The travel target attainability determination processing means for determining whether or not the operator's travel target can be achieved based on the power generation possible time, the average vehicle speed of the electrically driven vehicle, and the operator's travel target. The electrically driven vehicle according to any one of 6.   The electrically driven vehicle according to claim 7, further comprising a power generation processing unit configured to generate power by the power generation device when the travel target of the operator can be achieved.

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