JP2008162318A - Hybrid vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein power assistance is controlled to be stopped and to charge a battery, when the charge amount of the battery reaches a specified value, even when traveling in a position reaching a top of an ascending slope in a short distance, since charge-discharge control of the battery for hybrid travel is executed in principle, according to a current situation, in a control circuit of a hybrid automobile. <P>SOLUTION: Patterns of the ascending slope and a descending slope are learnt automatically, in response to the distance from a travel start point, as to a vehicle operated repeatedly between a fixed points in a regular route or the like, and energy utilization efficiency is enhanced in the hybrid automobile, by providing a means for predicting the operating condition after each time, to control the charge-discharge of the battery and a temperature of a device, according to the result learnt. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to travel control of a hybrid vehicle mounted on a vehicle. More specifically, the control device mounted on the vehicle learns the travel pattern of the vehicle, thereby controlling the charge / discharge of the hybrid vehicle battery and the temperature of the hybrid travel device such as a battery, an inverter, and a motor generator. It relates to a device to be controlled. The present invention is used for a regular bus vehicle, a commuter vehicle, a pick-up vehicle, a delivery vehicle, a material or product transportation vehicle, or a vehicle that is repeatedly operated in the same traveling pattern in a limited section. .

  In a hybrid vehicle that is in practical use, when driving with a large load on the prime mover, such as uphill, electric energy is supplied from the battery, and the in-vehicle motor generator enters the motor mode for electrical auxiliary acceleration. Is called. When in the auxiliary acceleration state, if this continues for a long time and the battery charge falls below the set value, the motor generator is automatically switched to the generator mode or the electric auxiliary acceleration force is stopped. Or squeezed. As a result, the on-board battery is switched to be charged by the energy of the prime mover or by the traveling energy, or the amount of discharge is stopped or the amount is reduced. The remaining capacity of the battery when this switching is performed varies depending on the nature and design of the vehicle, but is set to about 20 to 25% of the chargeable capacity, for example. This vehicle is designed to be automatically executed according to a set control target by monitoring the remaining capacity of the battery by a vehicle-mounted program control circuit in a vehicle that is currently widely sold.

  When the hybrid vehicle is traveling downhill, the in-vehicle motor generator is in the generator mode and the vehicle is in an electric braking state. Even when the road surface is flat, if the driver depresses or releases the accelerator pedal, the motor generator enters the generator mode and is in an electric auxiliary braking state. In this electric braking state, electric energy is supplied from the motor generator to the battery, and the battery is recharged. This gives the driver the same feeling as when the engine brake is working. If this state continues and the battery charge exceeds the set value, the control circuit automatically inhibits electric braking, or switches the connection so that electric energy generated by electric braking is supplied to the resistor to dissipate heat. . The remaining capacity of the battery when this connection switching is performed is set to about 75 to 80%, for example.

  By this regenerative charging action, energy generated by braking the vehicle can be accumulated and used for vehicle acceleration, so that the hybrid vehicle is improved in fuel consumption compared to a vehicle having only an internal combustion engine. When this action repeatedly occurs according to the road surface on which the vehicle travels, the fuel consumption is clearly economical. However, as described above, the lower limit and the upper limit are set for the charge amount of the battery, and if the uphill or downhill state continues for a long time on the road surface, the charge amount of the battery is fixed at the lower limit or the upper limit. Thus, the economic efficiency as a hybrid vehicle is impaired.

  Under actual vehicle operation, the hybrid battery is in the upper limit capacity state, but the road surface is further downhill, or the charge amount of the hybrid battery is in the lower limit capacity state. A situation can occur where the vehicle continues uphill. When such a state occurs, the advantage of the hybrid vehicle in which energy generated by braking is regenerated and used for acceleration is not utilized.

  For commercial and private use, the vehicle will eventually return to the base. It is desirable to use it as an electric motor and to charge the hybrid battery when the vehicle is decelerated or downhill. However, this requires an increase in the capacity of the on-vehicle battery, which is not realistic. In addition, increasing the capacity of the on-board battery sacrifices the effective load weight for cargo and passengers.

  From such a viewpoint, the following Patent Documents 1 to 3 propose an invention in which information on the condition of a road surface traveling from a navigation device is acquired in advance and charge / discharge prediction control in a hybrid vehicle is performed according to the information. ing.

JP 2003-111209 A JP 2004-056867 A JP 2004-236472 A

  The inventor of the present application thought that while performing a running test of a hybrid vehicle, the running pattern was learned for the control of the hybrid vehicle, and predictive control could be performed based on the learning. For example, while driving uphill, the driver is accustomed to the road and knows that the uphill will soon end and become a flat road or downhill.

  In such a situation, control the battery to be charged so that the uphill can be completed before starting the uphill road, so that the battery charge does not run out during the uphill. It would be economical to control. Or, even if the margin of the minimum charge set in the battery at the last stage of the uphill is slightly interrupted, the electric running is continued exceptionally a little more, and the battery is charged after the uphill. It would be economical to control so.

  Certainly, it is possible to perform predictive control using information from the car navigation device. However, route bus vehicles, commuter vehicles, delivery vehicles for specific sections (eg, between two town post offices), transportation vehicles between stations and offices, materials between factories and warehouses Or there are quite a few vehicles, such as a vehicle carrying a product, in which the same traveling pattern is repeated in a predetermined section. For such vehicles, a car navigation device is not necessarily required, and a learning function is provided in an in-vehicle program control device to learn a driving pattern, and charging / discharging of the hybrid battery is performed according to the driving pattern learned by the learning function. I thought that predictive control could be performed.

  In this way, it can be considered that even a very large number of vehicles are traveling in a typical section for a lot of time. A private vehicle that is used for commuting from Monday to Friday and used for shopping on Saturday or Sunday is traveling on a regular section from Monday to Friday. Business vehicles are used for transporting materials or products in a certain section or picking up a predetermined section, and most of them are operating in a regular section.

  In addition, the battery, inverter, and motor generator (motor), which are devices for performing hybrid travel, are controlled so that the temperature does not rise above a predetermined level. However, the travel is performed in the same manner as the battery charge / discharge control described above. If a pattern is learned, predictive control can be performed according to the learned running pattern.

  In other words, the present invention provides a learning function of a traveling pattern for a vehicle that constantly travels in the same traveling pattern, and predicts a traveling condition from the learned traveling pattern to control fuel consumption more economically. An object of the present invention is to provide a hybrid vehicle that can be used. The present invention provides a function of automatically learning a driving pattern of a hybrid vehicle in which the same driving pattern is repeatedly used, and at one point in time when the vehicle is driving, the driving learned in the past is provided. If the conditions are automatically searched and similar driving conditions can be found, it is assumed that the vehicle will travel according to what the vehicle has already learned, and charging / discharging of the in-vehicle battery and each device An object of the present invention is to provide an apparatus capable of predicting and controlling the temperature more reasonably. It is another object of the present invention to perform running control so that charging and discharging adapted to the running pattern can be performed by constantly updating the running pattern by learning.

  More specifically, a fixed section (not limited to a section between two points but also a section connecting three points or six sections connecting four points to each other) accumulated in an in-vehicle control device may be used. For a vehicle that is running, it is assumed that the driving conditions that have been experienced in the section for one or more times are repeated during the driving, and the subsequent driving state is predicted, and the hybrid battery is charged based on the prediction. It is an object of the present invention to provide an apparatus capable of more economically performing discharge control and temperature control.

  According to the present invention, the means for learning acceleration and deceleration traveling patterns according to the traveling distance from the traveling start point and the traveling in the unrunning section when the traveling pattern is repeated are executed according to the learning content of the learning means. It is characterized by comprising means for performing charge / discharge control of the battery for hybrid traveling, and means for executing means for controlling the temperature of the hybrid travel device.

The above “travel start point” is, for example, 1. When the vehicle engine key is turned on,
2. When the engine key is turned on and the forward gear is set to operate,
3. When the engine key is turned on and the parking brake is released,
4). When the engine key is operated “ON” and the forward vehicle speed exceeds a set value (eg, 5 km / h) from zero,
5. When the engine key is operated “ON” and the steered wheel is operated more than a predetermined angle,
6). When two or more of the above 1 to 5 are established simultaneously,
7). When three or more of the above 1 to 5 are established simultaneously,
8). When the reset switch on the vehicle is operated,
9. It can be determined by others.

  The above “others” include: 1. When a specific radio signal is received from a radio transmission source installed in a garage, turning point, or other place, or when the radio signal disappears. A driving start point linked to a car navigation system can be considered.

  The “acceleration and deceleration travel pattern” is a pattern of the acceleration / deceleration state of the vehicle, and is a pattern greatly influenced by whether the road surface is an uphill or a downhill. This acceleration / deceleration pattern can be detected based on whether the load of the power unit is greater than or less than a predetermined value, whether a brake (including an engine brake) is used, and others. Even when the vehicle travels on a flat road, it can include a case where the vehicle starts and stops in a predetermined pattern like a delivery vehicle.

  As an example, the “means for learning a traveling pattern” records vehicle speed information, driving torque information, and the like according to a traveling distance from a traveling start point, and can read and use (or refer to) this later. It is means to hold.

  The above-mentioned “perform charge / discharge control of the battery for hybrid driving by predicting that it will be executed according to the learning content” is so-called “look ahead” before actual control is executed, and more specifically, The control (battery charge / discharge control) is executed as if the past driving pattern in which the charging or discharging of the hybrid battery was previously experienced and recorded is repeated as it is or almost exactly. Say. Further, controlling the temperature of the hybrid traveling device refers to controlling the temperature of the hybrid traveling device such as an inverter, a motor generator, or a battery based on a past traveling pattern. It means to perform control that allows to fall.

  According to the present invention, the charge / discharge control of the hybrid battery is based on the learning content, for example, when the end of an uphill is approaching, when the start of a downhill is approaching, or otherwise. The control unit can be configured to temporarily change the upper and lower limits of the charge amount set for the battery and effectively use the charge amount.

  The learning content of the learning means is information related to the gradient and distance accumulated as a record by repeating a driving pattern from one driving start point, and when the means is set to be effective It is desirable to include a means for always correcting the already learned pattern.

  The learning means always corrects the already learned pattern, so that the section that repeats traveling frequently is corrected, the information such as the road surface gradient is corrected, and the retained content is correctly maintained, and The accuracy of control by the running pattern is also improved.

  The learning means includes means for performing switching setting by operation corresponding to a plurality of travel paths, and is stored in the means for distinguishing and storing a plurality of patterns already learned for one vehicle and the means for storing the patterns. And a means for selecting and setting one of the selected patterns). For example, an operation switch installed in the driver's seat, a screen of a navigation device (commonly referred to as “car navigation”) and other map information screens can be used for display.

  A configuration comprising a display screen provided in the driver's seat, means for selectively displaying a travel route on the display screen, and means for selecting one of the already learned patterns in accordance with the information of the selected and displayed travel route; can do. This configuration can also be displayed using a screen of a navigation device installed in the driver's seat and other map information screens.

  The vehicle is equipped with a navigation device (commonly called “car navigation”) that receives signals transmitted from multiple satellites and automatically identifies the position on its own map, and corresponds to the travel record recorded in the navigation device The learning means of the means for learning can be configured to have means for using or changing the learning contents.

  The hybrid vehicle of the present invention can control the charging / discharging of the hybrid battery and the temperature of the hybrid traveling device while holding a traveling pattern that has traveled in the past and performing so-called “look ahead” while referring to the traveling pattern. it can. Therefore, when it comes to charge / discharge control, the charge / discharge control is automatically switched when the set limit value is reached, as compared to the case where control is performed only according to the state of the device at that time (especially the state of the battery). Insufficient charge or inability to charge is reduced, and overall fuel consumption can be made economical. Further, by performing predictive control on the temperature of the apparatus based on the traveling pattern in the same manner as the charge / discharge control, it is possible to effectively use the apparatus to the limit and to effectively use energy by the hybrid traveling apparatus.

  In addition, with regard to the driving pattern to be learned, by constantly correcting the learned pattern, the accuracy of information such as the road surface in the section where frequent driving is repeated on route buses, freight cars for delivery, etc. is improved, and more energy is required. Efficient hybrid vehicle travel control is possible.

  “Temporary expansion of limit values” for charging capacity and device temperature is a design standard that allows for reasonable control over battery performance and equipment to allow for immediate recovery if expected. The apparatus can be designed so that the margin set by the above is not crushed for a long time or constantly. Therefore, it is considered that a design that does not accelerate the deterioration of the useful life of the battery or the performance of the device can be realized by implementing the present invention. This temporary increase of the limit value can be designed by so-called predictive control (the above-mentioned “look ahead”). By temporarily expanding the limit value, it is possible to make the entire apparatus compact by effectively utilizing the margin of the apparatus.

(Example)
FIG. 1 is a block diagram for explaining a hybrid power unit including an internal combustion engine according to an embodiment of the present invention. The internal combustion engine 1 is a main power engine of a vehicle, and is a diesel engine in this example. One end of the rotating shaft of the three-phase AC rotating machine 2 is fixedly connected to the output shaft of the diesel engine 1. The other end of the rotating shaft of the three-phase AC rotating machine 2 is connected to the input shaft of the transmission 5 via the clutch 3. The output shaft of the transmission 5 is connected to the drive axle via a differential gear outside the figure. Three-phase alternating current is supplied from the inverter 4 to the stator electric windings of the three-phase alternating current rotating machine 2. This three-phase alternating current generates a rotating magnetic field around the rotating shaft. A direct current is supplied from the battery 9 to the inverter 4.

  The phase rotation speed of the three-phase AC supplied from the inverter 4 to the three-phase AC rotating machine 2 is controlled by the program control means 10. When the phase rotation speed of the three-phase alternating current becomes larger than the mechanical rotation speed of the three-phase alternating current rotating machine 2, the three-phase alternating current rotating machine 2 acts as an electric motor and an auxiliary rotational acceleration is applied to the output rotation shaft of the internal combustion engine 1. give. When the phase rotation speed of the three-phase alternating current becomes smaller than the mechanical rotation speed of the three-phase alternating current rotating machine 2, the three-phase alternating current rotating machine 2 acts as a generator, and the vehicle is connected to the vehicle via the clutch 3 and the transmission 5. A braking force is generated for the drive axle (not shown). This gives the driver who drives the vehicle a sense that a so-called engine brake is acting. At this time, the alternating current generated from the three-phase alternating current rotating machine 2 is converted into a direct current by the inverter 4 to charge the battery 9. The current supplied from the battery 9 drives the three-phase AC rotating machine 2 via the inverter 4, and the energy generated by the braking force is regenerated as driving power for the vehicle.

  The inverter 4 is a device that couples the DC terminal of the battery 9 and the three-phase AC terminal of the three-phase AC rotating machine 2 bidirectionally. This device is widely used in hybrid vehicles equipped with AC motor generators, and detailed description of the configuration and operation is omitted here. The rotational phase of this three-phase AC terminal is controlled by the program control means 10. The program control means 10 is connected to the program control means 10 via the interface circuit 11 respectively, the battery charge amount, the battery charge / discharge current detection output, the vehicle speed, the transmission gear position, the rotation information of the internal combustion engine, the accelerator pedal depression amount, and other phases. Information necessary for control is input.

  The battery 9 is a large-capacity secondary battery disposed in the vehicle frame or the like. For example, the terminal voltage is 200 to 350 V depending on the vehicle type. The battery 9 is configured by electrically connecting a large number of cells in series, and both terminals thereof are connected to the DC terminal of the inverter 4. A capacitor 19 is connected in parallel to the DC terminal of the inverter 4 to absorb spike-like voltage fluctuations input to the battery terminal from the inverter 4 and others. The input circuit of the DC-DC converter 18 is connected to both terminals of the battery 9. An operating current is supplied from the low-voltage side output of the DC-DC converter 18 to electrical components (for example, a rated voltage of 24 V) in each part of the vehicle. A design in which a storage battery (for example, rated voltage 24V) is connected in parallel to the output terminal side of the DC-DC converter 18 in order to maintain the operating voltage of various electrical components when the internal combustion engine of the vehicle is stopped. Although widely used, this is omitted in this drawing.

  Here, a feature of the present invention resides in hybrid travel control when the vehicle is used as a vehicle operated in a predetermined section. A control device for this purpose is displayed as road surface information control means 20 in particular. The road surface information control means 20 can be designed so that most or all of the software is built in the program control means 10.

  FIG. 2 is a block configuration diagram for explaining the configuration of the road surface information control means 20. In FIG. 2, the upper left portion of the diagram divided by the one-dot chain line is an existing program control means for hybrid control. The embodiment apparatus of the present invention is configured by adding software and small hardware related to the control of the present invention to the existing program control means. The control circuit 21 is a basic circuit for carrying out the present invention. The control circuit 21 refers to the road surface information file 22 and is reset by the reset control circuit 23. The road surface information file 22 holds information from various sensors and others corresponding to vehicle travel. An operation input terminal 24 as hardware is connected to the reset control circuit 23, and further, a travel information source 25 of this vehicle is connected. The travel information source 25 illustrates electrical signals from related devices such as vehicle speed information, rotation information of the internal combustion engine, and transmission position information in one block.

  The vehicle orientation information is a device that outputs the orientation of the vehicle as an electrical signal by a built-in magnetic sensor, and this electrical signal is also connected to the control circuit 21 via the reset control circuit 23. When the car navigation device (car navigation device) 27 is mounted on the vehicle, necessary electrical wiring, connectors, and the like are provided so that the position information of the car navigation device can be captured as an electrical signal. The base point signal device 28 is a fixed facility on the ground side, and is a device that transmits a weak radio wave signal (or ultrasonic signal). The vehicle side receives the signal via an antenna (or microphone) to receive the signal. The reception output electric signal is taken into the reset control circuit 23. The base point signal device 28 is disposed, for example, at an end point of a regular bus, an employee entrance / exit of a commuter pick-up bus, a product shipping port of a factory, and a part material receiving port.

  This device is a device installed in a hybrid vehicle, and the hybrid vehicle is a regular bus, a commuter vehicle, a regular freight vehicle, between a factory shipping port and a warehouse, or between a warehouse and a factory material receiving port. It is reasonably utilized when the transportation vehicle and other road surfaces on which it travels regularly are limited. That is, with respect to a road surface that travels steadily, in particular, information on the road surface gradient, that is, acceleration (and deceleration) of the vehicle is accumulated in the vehicle, and a travel pattern is learned. Then, the learned patterns for the same travel route are corrected each time the vehicle travels, so that the accuracy of the information is improved and adapted to the travel pattern that changes over time. And while the vehicle is traveling, it is predicted that the road surface gradient will change successively according to the learned traveling pattern, and the battery charge / discharge for hybrid control and the temperature of the device are controlled. is there.

  Here, charge / discharge control will be described. FIG. 3 shows an outline of the control flowchart. That is, when the key switch of the vehicle is turned on, information on the travel start point of the vehicle is input. This input may be performed by an operation or information may be input by a radio signal. In the case of using a radio signal, for example, it is an output radio signal of the base point signal device 28 described above. Even if these base point information is not inputted at all, the measurement and recording of the road surface gradient, that is, the acceleration and deceleration of the vehicle is started from the base point setting (ODO = 0 km), and the information is set to the travel distance (ODO) from the base point. Store it in the memory in correspondence.

  And it is collated whether the change of the road surface gradient corresponding to this travel distance has a similar pattern with the past road surface information already accumulate | stored in the apparatus. When a pattern similar to the past accumulated record is found, it is possible to execute the predictive control on the fuel supply amount on the assumption that the vehicle is traveling on the same road as the past accumulated record of the similar pattern. That is, when an uphill is predicted on the road surface to be traveled from now on, control is performed so that the amount of charge of the hybrid battery is increased. And when approaching the uphill, the energy accumulate | stored in the battery corresponding to the pattern of the road surface can be supplied. When a downhill is predicted on the road surface to be traveled, control is performed so that the amount of charge of the hybrid battery is reduced. As a result, when the vehicle approaches the downhill, the hybrid engine can be controlled to brake charging, and the battery can be charged with the energy generated by braking as electric energy.

  Also, when running uphill and driving with electric assist acceleration, when it is predicted that the uphill will end in a little more with the stored road surface pattern, even if it is the lower limit of the remaining capacity of the battery, For example, the lower limit set value is allowed to be lowered by 5%, for example, and discharging is performed, and control is performed so that charging is performed on a subsequent downhill or flat road. Similarly, when driving while regenerating downhill, when the downhill ends with a memorized road surface pattern, and there is an uphill beyond that, the motor-assisted acceleration travels on that uphill. Since it can be predicted that electricity will be used, the upper limit capacity for charging by normal regeneration is temporarily controlled, for example, by increasing the upper limit value by 5%, and charging is controlled.

  In this way, even if the upper and lower limit values for charging / discharging are temporarily changed, charging or discharging is performed so as to eliminate the discharging or charging continuously on the road surface pattern. Alternatively, overcharging is not performed and the useful life of the battery is not shortened. As a result, the electric energy can be regenerated or used effectively in accordance with the road surface pattern, so that the effect of reducing fuel consumption is great.

  FIG. 4 briefly describes a configuration example of a system related to temperature control. The battery 9, the inverter 4, and the three-phase AC rotating machine 2 constituting the hybrid traveling device are each provided with temperature sensors 30-1 to 30-1. 30-3... Are provided, and the program control means 10 controls the temperature of the device so as not to exceed a specified value while monitoring the temperature of the device input from these temperature sensors. For example, when the temperature of the battery reaches a predetermined threshold due to charging, the charging is stopped, or if the temperature of the three-phase AC rotating machine 2 reaches a predetermined upper limit temperature, the electric power is stopped and control is performed so as not to output power. ing. In this case, if it is predicted that the uphill will be completed or the downhill will be completed in a short time based on the driving pattern information by the same control logic as the battery charge / discharge control described above, the temperature It is possible to perform control to perform auxiliary acceleration or regenerative braking by temporarily canceling the upper limit value. As a result, the control of the device will temporarily exceed the standard, but this will not degrade the performance of the device, but will improve the energy utilization efficiency and reduce the fuel consumption. The effect is great.

  Thus, when the road pattern experienced in the past is repeatedly traveled, as shown in the flowchart of FIG. 3, the road surface gradient that will appear from now on is predicted to charge more or discharge more. Control can be performed. As a result, the vehicle going up the slope is forced to switch from the discharge control to the charge control due to the insufficient charge amount of the battery, and the possibility of inadvertently increasing the fuel consumption is reduced. Further, it is possible to control so that the vehicle traveling down the slope charges the battery correspondingly in the section following the slope, thereby suppressing the fuel consumption.

  Further, not only on the road surface pattern but also on a running pattern in which start and stop are repeated, the energy use efficiency can be further improved by performing auxiliary acceleration and regenerative braking with the same logic.

  The above description is based on an example in which a vehicle reciprocates on the same road surface on a simple uphill or downhill. However, the present invention only applies to a vehicle that reciprocates between two points, for example, a vehicle that operates like a regular bus. Not limited to. Gradient information can be automatically stored for each section for vehicles that are used for three-way triangular operation between three points or for mutual operation between four points. And by referring to the accumulated information, it is possible to operate so as to make fuel consumption economical by performing control so as to automatically specify the road surface during traveling.

  The information on the past travel section stored in the control circuit memory of the vehicle can be referred to as the road surface pattern increases as the vehicle is used for a long period of time. That is, the amount of road surface information increases. By using this road surface information as appropriate, the road surface information is accumulated for the average fuel consumption compared to the case where hybrid control is simply performed based only on the charge amount of the battery or the device temperature. Therefore, the possibility of economicization increases.

The block block diagram of this invention Example apparatus. The block block diagram explaining the road surface information control means (20) of this invention Example. The control flowchart of this invention Example apparatus. The block diagram which shows a structure for temperature control.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Internal combustion engine 2 Three-phase alternating current rotating machine 3 Clutch 4 Inverter 5 Transmission 6 Gear position sensor 7 Rotation sensor 8 Vehicle speed sensor 9 Battery 10 Program control means 11 Interface circuit 12 Accelerator pedal 13 Accelerator sensor 14 Fuel injection pump 15 Electronic governor 16 Charge amount detection means 17 Current detection means 18 DC-DC converter 19 Capacitor 20 Road surface information control means 21 Control circuit 22 Road surface information file 23 Reset control circuit 24 Operation input terminal 25 Driving information source 26 Vehicle direction 27 Car navigation device 28 Base point signal device 30 Temperature sensor

Claims (6)

Means for learning a traveling pattern of acceleration and deceleration according to a traveling distance from a traveling start point;
Means for performing charging / discharging control of the battery for hybrid traveling by predicting that traveling in an untraveled section is executed according to the learning content of the means for learning when the traveling pattern is repeated; and temperature of the hybrid traveling device A hybrid vehicle comprising: means for executing control.   The hybrid vehicle according to claim 1, wherein the means for performing charge / discharge control of the battery for hybrid traveling includes control means for changing upper and lower limits of a charge amount set for the battery.   The learning content of the means for learning is information relating to the gradient and distance accumulated as a record by repeating the driving pattern from one driving start point, and has already been learned when the means is set to be effective. The hybrid vehicle according to claim 1, further comprising means for always correcting a completed pattern.   The learning means includes means for performing switching setting by operation corresponding to a plurality of travel paths, and is stored in the means for distinguishing and storing a plurality of patterns already learned for one vehicle and the means for storing the patterns. The hybrid vehicle according to claim 1, further comprising means for selecting and setting one of the patterns.   A display screen provided in a driver's seat, means for selectively displaying a travel route on the display screen, and means for selecting one of patterns already learned according to the information of the travel route displayed on the selection. The hybrid vehicle according to 1. The vehicle is equipped with a navigation device that receives signals transmitted from a plurality of satellites and automatically identifies a position on its own map,
The hybrid vehicle according to claim 5, further comprising means for using or changing the learning content of the learning means corresponding to the travel record recorded in the navigation device.

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