JP3092403B2 - Hybrid electric vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle driven by driving wheels by an electric motor, and more particularly to a hybrid electric vehicle provided with a power generating internal combustion engine or a driving internal combustion engine.

[0002]

2. Description of the Related Art In recent years, there has been an increasing movement to protect the global environment. In particular, air pollution caused by consuming a large amount of fossil fuels has become a serious problem. This is a very important issue in protecting the environment. Engines using fossil fuels such as gasoline and light oil are now mainstream in automobiles, and air pollution from automobile exhaust gas in large cities, especially in those urban areas, has become a very serious problem. Electric vehicles that emit no emissions are being reviewed.

At present, this electric vehicle has various problems in practical use. Although it has been put to practical use in some fields, it has not yet been widely used. Therefore, in order to make electric vehicles more practical, various technologies have been proposed for electric vehicles. For example, due to limited battery performance, today's electric vehicles try to increase the mileage per charge,
It is necessary to mount a large amount of batteries, which significantly increases the weight of the vehicle and occupies a large space in the vehicle. For this reason, there is a problem that the power performance and livability of the vehicle are deteriorated. Of course, if the amount of battery is reduced, the mileage per charge cannot be increased.

In an electric vehicle, charging must be performed when the remaining capacity of a battery, which is an energy source, is reduced. However, at present, this battery cannot be charged as easily as gasoline replenishment. For this reason, when the vehicle stops on the road due to insufficient battery capacity, it is not easy to take measures against the stop. In order to compensate for such problems of electric vehicles at the present time, so-called hybrid electric vehicles in which an internal combustion engine is mounted on the electric vehicle itself have been proposed.

[0005] Such hybrid electric vehicles include:
There are so-called series hybrid vehicles and parallel hybrid vehicles. The series hybrid vehicle is equipped with an internal combustion engine and a generator driven by the internal combustion engine. If the battery capacity is insufficient, the internal combustion engine is operated to generate power using the generator, and the generated power By running while charging the battery, the electric vehicle can run even when the battery capacity is insufficient.

[0006] The parallel hybrid vehicle has a traveling internal combustion engine mounted in parallel with the traveling electric motor. In addition to driving the wheels by the traveling electric motor, the wheels can also be driven by the traveling internal combustion engine. it can. Therefore, even when the battery capacity is insufficient, the driving internal combustion engine
Cars can run. Therefore, in such a hybrid electric vehicle, by operating the internal combustion engine in an auxiliary manner, it is possible to extend the traveling distance of the vehicle while reducing the exhaust gas and obtaining the effect of suppressing atmospheric pollution.

[0007]

By the way, in the above-mentioned hybrid electric vehicle, when the internal combustion engine is operated, naturally, exhaust gas is emitted, so that air pollution cannot be completely prevented. Therefore, in a suburb or the like where the regulation of air pollution is not so strict (that is, the degree of air pollution is relatively low), the vehicle is driven by operating the internal combustion engine, and the regulation of air pollution is strict (that is, the degree of air pollution is relatively low). (High) In an urban area or the like, it is conceivable to run with the internal combustion engine stopped.

That is, for example, in the case of a series hybrid vehicle, in a suburb or the like where the regulation of air pollution is not so strict, the internal combustion engine for power generation is operated to turn the generator, and the driving motor is used while utilizing the generated power. Activated and run with the driving force of this running motor, stopping the internal combustion engine for power generation in urban areas where air pollution regulations are severe,
The traveling motor is operated using the electric power stored in the battery, and the vehicle travels with the driving force of the traveling motor.

[0009] For example, in the case of a parallel hybrid vehicle, the vehicle runs with the driving force of the driving internal combustion engine in a suburb where air pollution is low, and in a city area where air pollution is high, the driving internal combustion engine is stopped to reduce the electric power of the battery. To drive the electric motor for traveling to drive with the driving force of the electric motor for traveling. As a result, it is possible to extend the mileage with a small battery capacity while preventing air pollution particularly in an urban area where the situation is serious.

As described above, in order to switch the driving mode depending on the area, when the vehicle enters an air pollution prevention enhanced area such as an urban area, the driver performs the operation manually. When it is determined that there is a means to automatically switch the driving mode by judging that the area is an air pollution prevention enhanced area such as an urban area, and to install a means to send a signal such as a beacon in the city area to indicate that the area is an air pollution prevention enhanced area, Then, means for automatically switching the running mode can be considered.

However, it is not always reliable to judge whether or not the driver has entered the air pollution prevention enhanced area such as an urban area, and even if it is possible to judge that the driver has entered the air pollution prevention enhanced area. However, the driver does not always switch the driving mode immediately. Also,
It is not practical to judge an air pollution prevention reinforced area such as an urban area based on the vehicle speed because the judgment system is bad.

In addition, installing a beacon or the like in an urban area requires a large cost, and since only local information near the beacon can be obtained, the beacon and the like are installed at a high density in all air pollution prevention reinforced areas. You have to wait for this to work. The present invention has been made in view of such a problem, and in an air pollution prevention strengthened area such as an urban area, the internal combustion engine is surely stopped to minimize the influence of the exhaust gas of the internal combustion engine. It is an object of the present invention to provide a hybrid electric vehicle capable of extending a mileage with a battery capacity.

[0013]

[0014]

According to the present invention, a hybrid electric vehicle according to the present invention includes a battery, a driving motor supplied with power from the battery to drive wheels, and a driver output request operation. A motor control means for controlling the operation of the motor while adjusting the power supplied to the motor in accordance therewith; a generator connected to the battery so as to charge the battery; and a generator for driving the generator. In a hybrid electric vehicle including an internal combustion engine for use, internal combustion engine control means for controlling the operation of the internal combustion engine, and remaining capacity detection means for detecting the remaining capacity of the battery, information on the air pollution prevention enhanced area is stored. Storage means, a position measuring means for measuring a current position of the vehicle, and a current position of the vehicle based on information from the position measuring means and the storage means. Determining means for determining whether or not the battery is in the dyeing prevention enhanced area, wherein the internal combustion engine control means receives the detection information from the remaining capacity detection means and sets the remaining capacity of the battery in advance. When the remaining capacity of the battery rises to a preset upper limit capacity value, the operation of the internal combustion engine is stopped when the remaining capacity of the battery rises to a preset upper limit capacity value.
Even when the internal combustion engine is operating, a setting is made to stop the operation of the internal combustion engine when receiving the determination information from the determination means that the current position of the vehicle is in the air pollution prevention enhanced area. And the set lower limit value of the remaining capacity of the battery
Is the minimum capacity at which the vehicle can be driven by the drive motor.
It is characterized in that it is set to a value larger by the required capacity .

[0015]

[0016]

[0017]

[0018]

[0019]

The hybrid electric vehicle of the present invention described in claim 1 of the action] above mentioned, the position measuring means measures the current position of the vehicle, a determination unit, air pollution from the information storage means from the position measuring means It is determined whether or not the current position of the vehicle is in the air pollution prevention enhanced area based on the information on the enhanced prevention area.

On the other hand, the remaining capacity detecting means detects the remaining capacity of the battery. In the internal combustion engine control means,
When the remaining capacity of the battery is reduced to a preset lower limit capacity value in response to the detection information from the remaining capacity detecting means, the internal combustion engine is operated, and the remaining capacity of the battery is set to a preset upper limit capacity. When it rises to the value, the operation of the internal combustion engine is stopped. During operation of the internal combustion engine, power is generated by a generator, and the generated electric power charges the battery while the battery capacity is restored, and the driving motor operates using the power of the battery to drive the wheels.

When the determination means receives the determination information indicating that the current position of the vehicle is in the air pollution prevention enhanced area, the operation of the internal combustion engine is stopped. Therefore, at this time, power is not generated by the generator, and the driving motor operates using the power stored in the battery to drive the wheels. In addition, the traveling ability of the vehicle under a specific situation is ensured. In other words, when the remaining capacity of the battery falls to the set lower limit capacity value, it is desired to operate the internal combustion engine to generate power. At this time, the determination means indicates that the current position of the vehicle is within the air pollution prevention enhanced area. The internal combustion engine must be stopped,
There may be situations where power cannot be generated. However,
Since the set lower-limit capacity value of the remaining capacity of the battery is set to a value larger than the minimum capacity at which the vehicle can be driven by the driving motor by a required capacity, the vehicle travels by the required capacity. The ability is secured.

[0022]

[0023]

[0024]

[0025]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a hybrid electric vehicle as a first embodiment, FIG. 1 is a schematic diagram showing a drive system and a power generation system thereof, and FIG. 2 is a flow chart showing a control operation of the drive system and a power generation system. FIG. 3 is an explanatory diagram schematically showing the switching state of the traveling mode.
FIG. 4 is a configuration diagram schematically showing a drive system and a power generation system of a hybrid electric vehicle as a second embodiment.

First, the first embodiment will be described. This hybrid electric vehicle is a series hybrid vehicle as shown in FIG. In FIG. 1, reference numeral 1 denotes a battery, and this battery 1 can be repeatedly charged by an external charger (not shown) not provided in the vehicle. Reference numeral 2 denotes a motor (running motor) supplied with electric power from the battery 1, and the motor 2 drives driving wheels 3A and 3B of the automobile. The output of the motor 2 is controlled by a motor controller (motor control means) 4,
The motor controller 4 controls the output of the motor 2 based on the driver's output request operation (that is, the depression state of an accelerator pedal (not shown)), the current operating state of the motor 2, and the like. When the motor controller 4 detects a braking command from the depression of a brake pedal (not shown) or the like,
By switching the motor 2 to a generator, it is possible to perform regenerative braking that applies a braking force while generating electric power using the rotational energy from the driving wheels 3A and 3B.

Reference numeral 6 denotes a generator, and the generator 6 is driven by an internal combustion engine (hereinafter referred to as an engine) 7 for power generation. The battery 1 is connected to the battery 1 so that the battery 1 can be charged with the power generated by the generator 6. The output of the engine 7 is controlled by adjusting the throttle opening or the like (not shown). The operation of the engine 7 is controlled by an HEV / EV traveling control means 9 having a function as an internal combustion engine control means.

HEV is an abbreviation of Hybrid Electric Vehicle. Here, the motor 2 is operated while operating the engine 7 to charge the battery 1 with the electric power generated by the generator 6. Thus, the running state (= HEV running) for driving the vehicle is abbreviated as HEV. EV is an electric vehicle (Electric Vehicle).
Here, the running state (= EV running) in which the vehicle is driven by stopping the engine 7 and activating the motor 2 with the electric power stored in the battery 1 is also referred to as EV. I have.

That is, the HEV / EV traveling control means 9
When the HEV traveling is selected, the engine 7 is operated, and when the EV traveling state is selected, the engine 7 is stopped. The selection between the HEV running and the EV running is made based on information from the navigation system 11 and information from a remaining capacity detecting means (hereinafter referred to as a remaining capacity meter) attached to the battery 1 (not shown). .

That is, the HEV / EV traveling control means 9
When a signal indicating that HEV traveling is possible is received from the navigation system 11, the engine 7 is operated when the remaining capacity of the battery 1 decreases to a set lower limit capacity value based on the detection information from the remaining capacity meter, and the engine 1 is operated. When the remaining capacity rises to the set upper limit capacity value, control is performed to stop the operation of the engine 7. Further, when receiving a signal indicating that the vehicle is to be run by the EV from the navigation system 11, the control is performed such that the operation of the engine 7 is always stopped.

Note that the set lower limit capacity value is originally the minimum capacity at which a predetermined output (sufficient to drive a vehicle) can be obtained from the battery 1 by the motor 2. Value Q which is appropriately larger than the minimum capacity Q ₂
(= Q ₁ + α) is given as the set lower limit capacitance value. This is because, in the present hybrid electric vehicle, there is a region where EV driving is thoroughly performed as described later, and power generation by the generator 6 cannot be performed in this region. The set lower limit capacity value is set extra by α) to secure the running ability of the vehicle.

In the HEV / EV traveling control means 9,
When traveling in an area where the user originally wants to travel in the HEV mode but is required to travel in the EV mode, the motor controller 4 is controlled based on the relationship with the remaining capacity in order to secure the possible travel distance of the vehicle. The power supplied to the vehicle can be reduced to save energy. Here, the navigation system 11 will be described. The navigation system 11 is located at the current position of the vehicle.
And a display (not shown) that displays a map of the travel area of the vehicle and the position of the host vehicle on the map.

In the information processing part, in addition to the function as the position measuring means, the current position of the vehicle is the air pollution preventing enhanced area from the information from the position measuring means and the information on the air pollution preventing enhanced area. A function as a judging means for judging whether or not is added. Examples of the air pollution prevention strengthened area include an urban area of a large city where air pollution is actually severe, and a designated area such as a hospital, a school, or the like where environmental protection is particularly required.

The navigation system 11
Then, combining radio navigation and map matching method,
The position of the vehicle is measured. As radio navigation, here, GPS (Global Position)
ioning System) 12. GPS12 has multiple satellites (Nabster satellites)
12A and a terrestrial system (not shown) for transmitting necessary signals to the satellite 12A and managing the signals. The radio wave transmitted from the satellite 12A is caught by an antenna 13 and an amplifier or a receiver 14 not shown. After that, the data is input to the navigation system 11.

The navigation system 11 can detect the position of the vehicle, that is, the longitude and latitude, based on the radio wave input from the satellite 12A thus input.
The map matching method focuses on the fact that a vehicle travels on a normal road in principle, and can correct a measurement error of the position of the vehicle by matching a traveling locus of the vehicle with a road shape. Here, the satellite 12
By following the position of the vehicle obtained from the information from A with the passage of time, the traveling locus of the vehicle is obtained, and by matching this traveling locus with the road shape, the error of the vehicle position obtained by radio navigation is corrected. I do.

The navigation system 11 is connected with a CD-ROM 15 as a storage means for storing a map of a desired region for displaying the map on the display, and this is also used for map matching. I have. In addition, the CD-ROM 15 stores, in addition to the map information, information on the air pollution prevention strengthened area (zero emission zone and the area with severe air pollution) in the map. It is determined whether the current vehicle position obtained by radio navigation and corrected by map matching corresponds to the air pollution prevention enhanced area given from the CD-ROM 15, and if the current vehicle position corresponds to the air pollution prevention enhanced area. Outputs a signal (EV signal) for obliging the EV traveling with the engine 7 stopped, and when the vehicle does not correspond to the air pollution prevention enhanced area, a signal (HE for permitting the HEV traveling with the engine 7 activated).
V signal).

Since the hybrid electric vehicle according to the first embodiment of the present invention is configured as described above, the control of the drive system and the power generation system of the hybrid electric vehicle is performed, for example, as shown in FIG. That is, this control is started when the key switch is turned on, and the navigation system 11 measures the position of the host vehicle (step S1). That is, the position (latitude and longitude) of the own vehicle is measured by radio waves from the GPS satellite 12A, and this is corrected by map matching based on the map information from the CD-ROM 15.

Next, in step S2, based on the measured position information of the own vehicle and the information on the air pollution prevention enhanced area from the CD-ROM 15, the current vehicle position is set to the EV running area (air pollution prevention enhanced area). ) Is determined (step S2). If the vehicle is not in the EV traveling area, it is determined in step S3 whether the vehicle is currently traveling in the EV. Currently EV
If the vehicle is traveling, the battery capacity is checked in step S4 (that is, information from the remaining capacity meter is received), and in step S5, the remaining capacity of the battery 1 is equal to or less than a predetermined capacity (set lower limit capacity value). Is determined.

If the remaining capacity of the battery 1 is not less than the predetermined capacity (set lower limit capacity value), the engine 7 is not started and the EV running is continued. Then, step S6
It is determined whether or not the key switch has been turned off. If the key switch has not been turned off, the routine returns. If,
The remaining capacity of the battery 1 is a predetermined capacity (set lower limit capacity value)
If so, the process proceeds from step S5 to step S7 to start the engine 7 and switch to HEV running. As a result, the generator 6 is turned by the engine 7 to start power generation, and the battery 1 is charged from the generated power, and the remaining capacity of the battery 1 is recovered.

When the vehicle is switched to HEV traveling in this manner, in the next control cycle, the process proceeds from step S3 to step S8 to check the battery capacity (that is, receive information from the remaining capacity meter), and In step S9, it is determined whether the remaining capacity of battery 1 is equal to or greater than a predetermined capacity (a set upper limit capacity value). If the remaining capacity of the battery 1 is not equal to or more than the predetermined capacity (set upper limit capacity value), the HEV traveling is continued while the engine 7 is operated.

When the remaining capacity of the battery 1 recovers and becomes equal to or more than a predetermined capacity (a set upper limit capacity value), the process proceeds to step S10, where the engine 7 is stopped to switch to EV running. On the other hand, if it is determined in step S2 that the vehicle is in the EV driving area, the engine 7 is stopped and the vehicle is switched to EV driving if the HEV driving is currently being performed in step S11 (step S12).

When the key switch of the vehicle is turned off, the main power of the control system is turned off (step S1).
2) End the control. In this way, in the present hybrid electric vehicle, as shown in FIG. 3, while receiving information from the GSP 12, the air pollution prevention enhanced area 16 where air pollution is severe or the air pollution prevention enhanced area 17 where environmental protection is required. , EV driving is thoroughly carried out to prevent air pollution, and in areas other than these areas (general areas) 18, HEV driving is performed only when necessary, thereby suppressing air pollution and using a small battery capacity. The mileage can be extended. Of course, everywhere, when braking,
The power can be generated by using the braking energy by the regenerative braking, and the traveling distance can be increased. Reference numeral 19 denotes the present hybrid electric vehicle.

As a result, the traveling distance can be increased with a small battery capacity while effectively preventing air pollution, and the practicality of the hybrid electric vehicle can be greatly improved. Also, a value Q (= Q ₁₎ that is appropriately larger than the original minimum capacity Q ₂ as the set lower limit capacity value
+ Α), the battery capacity is ensured even when the vehicle enters the EV running area, and the running ability of the vehicle is ensured.

In the EV running area, the motor 2 can be operated in a reduced cost, and at this point, the travelable distance of the vehicle in the EV running area is ensured. Next, a description will be given of a second embodiment.
As shown in FIG. 4, this is a parallel hybrid vehicle.
In FIG. 4, the same reference numerals as those in the first embodiment (FIG. 1) denote the same parts, and a description thereof will be omitted, and only different parts will be described. Reference numeral 8 denotes a traveling internal combustion engine (hereinafter referred to as an engine).
The engine 8 is installed so as to drive another set of drive wheels 3C and 3D different from the drive wheels 3A and 3B in parallel with the motor 2.

Reference numeral 10 denotes HEV / EV traveling control means (control means), which activates either the motor 2 or the engine 8 or distributes both with an appropriate torque based on the traveling state of the vehicle. Activate. However, in an area where EV traveling is required, control is performed such that the engine 8 is always stopped and driven only by the motor 2.

With such a configuration, even in the parallel type hybrid vehicle, the travel distance can be reduced with a small battery capacity while effectively preventing air pollution, as in the case of the series type hybrid vehicle of the first embodiment. It can be extended, greatly improving the practicality of the hybrid electric vehicle. For vehicle position measurement,
For example, instead of or in combination with satellite navigation,
Self-contained navigation may be used. This self-contained navigation measures the change in the moving distance and moving direction of the vehicle and combines them to estimate the position of the own vehicle.However, the moving distance of the vehicle is calculated using the wheel speed and the number of rotations. The change in the moving direction of the vehicle can be calculated using the yaw angular velocity of the vehicle. For this purpose, information from a wheel speed sensor, various gyros, geomagnetic sensors and the like is input to the navigation system 11 and used for estimating the position of the host vehicle.

[0047]

[0048]

As described above in detail, according to the hybrid electric vehicle of the present invention, the battery,
A driving motor that is supplied with power from the battery to drive the wheels, a motor control unit that controls the operation of the motor while adjusting the power supplied to the motor in response to an output request operation of the driver; and A generator connected to the battery so as to be able to be charged, an internal combustion engine for driving the generator, an internal combustion engine control means for controlling the operation of the internal combustion engine, and a residual for detecting a remaining capacity of the battery In a hybrid electric vehicle provided with a capacity detecting means,
Storage means for storing information on the air pollution prevention enhanced area; position measurement means for measuring the current position of the vehicle; and information on the position of the vehicle based on the information from the position measurement means and the storage means. Determining means for determining whether or not the battery is in the pollution prevention strengthened area, wherein the internal combustion engine control means receives the detection information from the remaining capacity detecting means, and sets the remaining capacity of the battery to the set lower limit capacity. When the remaining capacity of the battery rises to the set upper limit capacity value, the operation of the internal combustion engine is set to be stopped. When the determination means receives the determination information indicating that the current position of the vehicle is in the air pollution prevention enhanced area, the operation of the internal combustion engine is set to be stopped. In reduction areas, it is thoroughly traveling not to operate the internal combustion engine, air pollution can be reliably prevented. Outside of these areas, power generation by the internal combustion engine is appropriately performed only when necessary, and the mileage can be extended with a small battery capacity while suppressing air pollution . As this, it is possible to greatly improve the utility of the hybrid electric vehicle of a so-called series-type.

Moreover, the lower limit of the remaining capacity of the battery is set.
The capacity value is the lowest that the vehicle can be driven by the driving motor.
Set to a value larger than the required capacity by the required capacity
Therefore, the set lower limit capacity value of the remaining capacity of the battery is set to a value larger by a required capacity than the minimum capacity that can drive the vehicle with the driving motor,
While reliably preventing air pollution, the running ability of the vehicle can be ensured, and the practicality of a so-called series-type hybrid electric vehicle can be further improved.

[0050]

[0051]

[0052]

[Brief description of the drawings]

FIG. 1 is a configuration diagram schematically showing a drive system and a power generation system of a hybrid electric vehicle as a first embodiment of the present invention.

FIG. 2 is a flowchart showing a control operation flow of a drive system and a power generation system of the hybrid electric vehicle according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram schematically showing a switching state of a driving mode of the hybrid electric vehicle as the first embodiment of the present invention.

FIG. 4 is a configuration diagram schematically showing a drive system and a power generation system of a hybrid electric vehicle as a second embodiment of the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 battery 2 motor 3 drive wheel 4 motor controller as motor control means 6 generator 7 internal combustion engine for power generation (engine) 8 internal combustion engine for engine (engine) 9 HEV / EV travel control means as internal combustion engine control means 10 control means HEV / EV traveling control means as a vehicle 11 Navigation system 12 GPS (Global Positioning)
System) 12A satellite (Nabster satellite) 13 Antenna 14 Receiver 15 CD-ROM as storage means 16 Air pollution prevention reinforced area with severe air pollution 17 Air pollution prevention reinforced area where environmental protection is required 18 General area 19 Hybrid electricity Car

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FIG08G 1/0968 B60K 9/00 E (72) Inventor Shinya Furukawa 5-33-8 Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation Inside the company (72) Inventor Masao Kato 5-33-8 Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation (72) Inventor Nobuyuki Kawamura 5-33-8 Shiba 5-chome, Minato-ku, Tokyo Mitsubishi Motors Corporation In-company (56) References JP-A-48-64626 (JP, A) JP-A-50-149015 (JP, A) JP-A-3-195305 (JP, A) (58) Fields investigated (Int. . ^7, DB name) B60L 11/12 - 11/04 F02D 17/00 F02D 29/00 B60K 6/02 G08G 1/0968 B60L 3/00

Claims (1)

(57) [Claims] 1. A battery, a driving motor supplied with power from the battery to drive wheels, and controlling operation of the motor while adjusting power supplied to the motor in response to an output request operation of a driver. An electric motor control means, a generator connected to the battery so as to charge the battery, an internal combustion engine for driving the generator, an internal combustion engine control means for controlling the operation of the internal combustion engine, In a hybrid electric vehicle provided with a remaining capacity detecting means for detecting a remaining capacity of a battery, a storage means for storing information of an air pollution prevention enhanced area; a position measuring means for measuring a current position of the vehicle; Means and information from said storage means,
Determining means for determining whether or not the current position of the vehicle is in the air pollution prevention enhanced area, wherein the internal combustion engine control means receives detection information from the remaining capacity detection means, When the remaining capacity of the battery decreases to a preset lower limit capacity value, the internal combustion engine is operated, and when the remaining capacity of the battery rises to a preset upper limit capacity value, the operation of the internal combustion engine is stopped. In addition to being set, even when the internal combustion engine is operating, when the determination means receives the determination information indicating that the current position of the vehicle is in the air pollution prevention enhanced area, the operation of the internal combustion engine is stopped. The battery is set to be stopped , and the set lower limit capacity value of the remaining capacity of the battery is smaller than the minimum capacity at which the vehicle can be driven by the driving motor.
The hybrid electric vehicle is also set to a large value by a required capacity .