JPH0819114A - Fuel use regulating type hybrid electric motor vehicle - Google Patents

Abstract

PURPOSE:To allow a drive to so guide as to travel a fuel use regulating type hybrid electric motor vehicle without depending upon an internal combustion engine. CONSTITUTION:A hybrid electric motor vehicle comprises a battery l which can be charged by external charging means, a drive motor 2 for driving wheels 3A, 3B by power from the battery 1, an internal combustion engine 7 for driving a generator which can supply power to the motor 2, and control means 9 for controlling the operations of the motor 2 and the engine 7. Accordingly, the vehicle has fuel use state detecting means 12 for detecting the change of a parameter responsive to the fuel consumption of the engine 7 after the battery 1 is charged by the charging means. Thus, the means 9 limits at least one of the outputs of the motor 2 and the engine 7 when the change of the parameter reaches a predetermined value from the detected result of the means 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a series type hybrid electric vehicle having an internal combustion engine for driving a generator for generating electric power to a drive motor, or an internal combustion engine for directly driving wheels. The present invention relates to a hybrid type hybrid electric vehicle equipped with the fuel consumption limiting type hybrid electric vehicle in consideration of reducing the dependency on the internal combustion engine.

[0002]

2. Description of the Related Art In recent years, the movement to protect the global environment is intensifying. Particularly, the air pollution caused by the consumption of a large amount of fossil fuel has become a serious problem. It is a very important issue in protecting the environment. Even in automobiles, engines using fossil fuels such as gasoline and light oil are now mainstream, and in particular, air pollution due to automobile exhaust gas in a large city, especially in the urban area, is a very serious problem. Electric vehicles that do not emit exhaust gas are being reviewed.

At present, various problems remain in practical use for this electric vehicle, and although it has been put to practical use in some fields, it has not come into widespread use. Therefore, in order to make the electric vehicle more practical, various technologies are currently proposed for the electric vehicle. For example, due to the limited battery performance, in current electric vehicles, if you try to extend the mileage per charge,
It becomes necessary to mount a large amount of batteries, which significantly increases the vehicle weight and occupies a large amount of space inside the vehicle. Therefore, there is a problem that the power performance and habitability of the vehicle are deteriorated. Of course, if the amount of battery is reduced, the mileage per charge cannot be extended.

Further, in an electric vehicle, it is necessary to charge the battery as an energy source when the remaining capacity of the battery is reduced, but this battery cannot be charged as easily as gasoline replenishment at present. For this reason, when the vehicle stops on the road due to insufficient battery capacity, it is not easy to take measures against it. In order to supplement these problems of electric vehicles at the present time, so-called hybrid electric vehicles, in which an internal combustion engine is mounted in the electric vehicle itself, have been proposed.

In such a hybrid electric vehicle,
There are so-called series hybrid electric vehicles and parallel hybrid electric vehicles. For example, FIG. 10 is a schematic configuration diagram showing a series-type hybrid electric vehicle. In FIG. 10, 1 is a generator 6 mounted on the vehicle.
(This will be described later) or a battery that can be repeatedly charged by an external charger (not shown) that is not equipped in the vehicle, and 2 is a motor (running electric motor) supplied with power from the battery 1. The motor 2 drives the drive wheels 3A and 3B of the automobile.

The output of the motor 2 is output by the motor controller (motor control means) 4 based on the output request operation of the driver (that is, the depression state of the accelerator pedal (not shown)) and the current operating state of the motor 2. Control output. When the motor controller 4 detects a braking command from depression of a brake pedal (not shown) or the like, it switches the motor 2 to a generator and performs regenerative braking that applies braking force while generating electric power with rotational energy from the drive wheels 3A and 3B. It is like this.

A generator 6 is driven by an internal combustion engine (hereinafter referred to as engine) 7 for power generation.
It is connected to the battery 1 so that the battery 1 can be charged with the electric power generated by the generator 6. The motor controller 4 controls the generator 6 and the engine 7.
Is performed by the traveling management controller 9 together with the control of.

Further, FIG. 11 is a schematic configuration diagram showing a parallel type hybrid electric vehicle. Since the same reference numerals as those in FIG. 10 indicate the same members, the explanations thereof will be omitted. In FIG. 11, 8 is an internal combustion engine (engine) for traveling, and this engine 8 is
It is installed in parallel with the motor 2 so as to drive another set of drive wheels 3C and 3D different from the drive wheels 3A and 3B.

A running management controller 10 controls whether to operate either the motor 2 or the engine 8 or both of them with appropriate torque distribution based on the running state of the vehicle. In each of these hybrid electric vehicles, by auxiliary operation of the internal combustion engine, it is possible to extend the mileage of the vehicle while reducing exhaust gas and obtaining an effect of suppressing atmospheric pollution.

[0010]

By the way, in such a conventional hybrid electric vehicle, the internal combustion engine is operated only in an auxiliary manner. Normally, only the electric motor without exhaust gas is operated without operating the internal combustion engine. It should be operated and run. That is, for example, in a series-type hybrid electric vehicle, when the remaining capacity of the battery is reduced, the battery is charged by external charging before the vehicle cannot run, and the vehicle is driven to generate power while operating the internal combustion engine for power generation. (Power generation driving) It is desirable not to do it except in an emergency.

Further, even in a parallel type hybrid electric vehicle, at the time of normal traveling, the vehicle is driven only by driving the electric motor, and it is necessary to operate the internal combustion engine for traveling without special traveling conditions or means for external charging. It is advisable to do this only under special circumstances, such as when you cannot drive. However, since these hybrid electric vehicles can be driven by an internal combustion engine,
There is a possibility that the driver will rely on the driving by this internal combustion engine, and it is possible that the hybrid electric vehicle, which extends the mileage of the vehicle while suppressing the pollution of the atmosphere, cannot achieve the original purpose.

The present invention was devised in view of the above problems, and an object thereof is to provide a fuel-use-limited hybrid electric vehicle that allows a driver to guide the vehicle to travel without relying on the internal combustion engine. To do.

[0013]

Therefore, the fuel-use-restricted hybrid electric vehicle of the present invention according to claim 1 is
A battery that can be charged by an external charging unit, a driving electric motor that can drive wheels by electric power from the battery, an internal combustion engine that drives a generator that can supply electric power to the driving electric motor, and the electric motor and the internal combustion engine. In a hybrid electric vehicle having control means for controlling the operation of the fuel use state detecting means for detecting a change in a parameter according to a fuel use amount by the internal combustion engine after the battery is charged by the external charging means. The control means is configured to limit at least one of the output of the electric motor and the internal combustion engine when the change in the parameter reaches a predetermined value from the detection result of the fuel usage amount detection means. It is characterized by that.

According to a second aspect of the hybrid electric vehicle of the present invention, which is limited to fuel use, in the configuration of the first aspect, the fuel refueling amount is used as the parameter, and the fuel use state detecting means uses the battery. It is configured as a fuel refueling amount detection means for detecting a total refueling amount after being charged by the external charging means, and the control means, when the total refueling amount reaches a predetermined value from the detection result of the fuel refueling amount detection means. It is characterized in that it is configured to limit the output of the electric motor.

According to a third aspect of the present invention, there is provided a fuel use restriction type hybrid electric vehicle according to the second aspect, further comprising fuel amount detection means for detecting the amount of fuel in the fuel tank. Is configured to detect the total refueling amount based on the detection information from the fuel amount detection means. According to a fourth aspect of the present invention, there is provided the fuel use restriction type hybrid electric vehicle according to the second or third aspect, wherein the fuel refueling amount detecting means is the fuel amount immediately after the battery is charged by the external charging means. To the initial value of the total amount of lubrication, to the initial value,
It is characterized in that the total amount of refueling is calculated by adding the amount of refueling for each refueling.

According to a fifth aspect of the present invention, there is provided a fuel use restriction type hybrid electric vehicle according to the third or fourth aspect, in which the fuel supply port lid opening / closing detecting means for detecting the open / closed state of the fuel filler port lid is provided. A fuel amount detecting means for detecting a fuel amount, wherein the fuel refueling amount detecting means is detected when the fuel refueling port lid is opened based on the detection information from the refueling port lid opening / closing detecting means and the fuel amount detecting means. It is characterized in that the refueling amount for each refueling is calculated from the fuel amount and the fuel amount detected immediately after the fuel refueling port lid is closed.

According to a sixth aspect of the present invention, in the fuel use restricted hybrid electric vehicle according to the third aspect of the invention, an abnormality is detected in a path for transmitting the detection result from the fuel detection means to the fuel oil supply amount detection means. The control means is configured to limit the output of the electric motor irrespective of the detection result of the fuel refueling amount detection means when the abnormality detection means detects the abnormality. Is characterized by.

According to a seventh aspect of the present invention, there is provided a fuel use limiting hybrid electric vehicle according to the first aspect, further comprising fuel amount detecting means for detecting the amount of fuel in the fuel tank, and the fuel tank as the parameter. The amount of fuel in the battery is used, and the fuel usage state detecting means detects the total fuel consumption amount after the battery is charged by the external charging means, based on the detection information from the fuel amount detecting means. The control means is configured as fuel consumption amount detecting means,
It is characterized in that the output of the electric motor is limited when the total fuel consumption reaches a predetermined value from the detection result of the fuel consumption detecting means.

According to an eighth aspect of the present invention, there is provided a fuel use limiting hybrid electric vehicle according to the seventh aspect, wherein the fuel consumption amount detecting means changes the fuel amount before the vehicle travels from the fuel amount after the vehicle travels. By calculating the fuel consumption of one run by subtracting and adding the fuel consumption of each run,
It is characterized in that it is configured to calculate the total fuel consumption.

According to a ninth aspect of the present invention, there is provided a fuel use restriction type hybrid electric vehicle according to the seventh or eighth aspect, wherein a route for transmitting a detection result from the fuel amount detecting means to the fuel consumption detecting means is provided. The control means is provided with an abnormality detecting means for detecting an abnormality, and when the abnormality detecting means detects the abnormality, the control means is configured to limit the output of the electric motor regardless of the detection result of the fuel consumption detecting means. It is characterized by

According to a tenth aspect of the present invention, in the hybrid electric vehicle of the limited fuel use type according to the first aspect, the number of miles traveled while the internal combustion engine is used is used as the parameter. The fuel usage state detection means is configured as a travel distance detection means for detecting the total travel distance number when the internal combustion engine is used after the battery is charged by the external charging means, and the control means is the travel distance detection means. It is characterized in that the output of the electric motor is limited when the total number of running distances when the internal combustion engine is used reaches a predetermined value from the detection result.

According to the eleventh aspect of the present invention, there is provided the fuel use limiting hybrid electric vehicle according to the tenth aspect, wherein the travel distance detecting means includes internal combustion engine use information.
It is characterized in that it is configured to detect the total number of miles traveled when the internal combustion engine is used, based on the detection information from the wheel speed detection means equipped in the vehicle. According to a twelfth aspect of the present invention, in the fuel use restriction type hybrid electric vehicle according to the eleventh aspect, an abnormality detection for detecting an abnormality of a route for transmitting a detection result from the wheel speed detecting means to the mileage detecting means. The control means is configured so as to limit the output of the electric motor regardless of the detection result of the wheel speed detection when the abnormality is detected by the abnormality detection means.

According to a thirteenth aspect of the present invention, in the fuel use limited hybrid electric vehicle of the first aspect, the fuel refueling amount and the number of mileages of the vehicle while using the internal combustion engine are used as the parameters. A fuel refueling amount detection unit that is used by the fuel use state detection unit to detect a total refueling amount after the battery is charged by the external charging unit, and an internal combustion engine after the battery is charged by the external charging unit. It is configured as a traveling distance detecting means for detecting the total traveling distance when the engine is used, and the control means determines whether the total refueling amount reaches a predetermined value from the detection result of the fuel refueling amount detecting means or the traveling distance. It is characterized in that the output of the electric motor is limited when the total traveling distance when the internal combustion engine is used reaches a predetermined value from the detection result of the detection means.

According to a fourteenth aspect of the present invention, in the fuel use limited hybrid electric vehicle according to the thirteenth aspect, an abnormality is detected in a path for transmitting a detection result from the fuel detecting means to the fuel refueling amount detecting means. The control means is configured to limit the output of the electric motor irrespective of the detection result of the fuel refueling amount detection means when the abnormality detection means detects the abnormality. Is characterized by.

According to a fifteenth aspect of the present invention, in the fuel use limited hybrid electric vehicle according to the thirteenth aspect, an abnormality is detected in a route for transmitting the detection result from the wheel speed detecting means to the mileage detecting means. And a control unit configured to limit the output of the electric motor regardless of the detection result of the wheel speed detection when the abnormality detection unit detects the abnormality. It has a feature.

According to a sixteenth aspect of the present invention, in the hybrid electric vehicle with limited fuel use according to the first aspect, the operating time of the internal combustion engine is used as the parameter, and the fuel use state detecting means is The operating means is configured as an operating time detecting means for detecting an operating time of the internal combustion engine after the battery is charged by the external charging means, and the control means determines an operating time of the internal combustion engine from a detection result of the operating time detecting means. It is characterized in that it is configured to limit the output of the electric motor when it reaches a predetermined value.

A fuel use restricted hybrid electric vehicle according to a seventeenth aspect of the present invention is the hybrid electric vehicle according to the sixteenth aspect, wherein the operating time detecting means includes use information of the internal combustion engine,
The operating time of the internal combustion engine is detected based on a timer. The hybrid electric vehicle with limited fuel use according to claim 18 of the present invention is characterized in that, in the structure according to claim 1, there is provided warning means that is activated when a change in the parameter reaches a predetermined amount from a detection result of the fuel usage amount detection means. It is characterized by being provided.

According to a nineteenth aspect of the present invention, in the fuel use limited hybrid electric vehicle according to the eighteenth aspect, the output of the electric motor is limited by a predetermined amount of change in the parameter associated with the operation of the warning means. It is characterized in that it is set smaller than a predetermined amount of change in the parameter. According to a twentieth aspect of the present invention, there is provided a fuel use restriction type hybrid electric vehicle according to the first aspect,
The control means is configured to limit the output of the electric motor when the change in the parameter reaches the predetermined amount.

According to a twenty-first aspect of the present invention, there is provided a fuel use limiting hybrid electric vehicle according to the twenty-first aspect, wherein the control means limits the maximum torque of the electric motor to limit the output of the electric motor. It is characterized by being configured as follows. According to a twenty-second aspect of the present invention, there is provided a fuel-use limited hybrid electric vehicle according to the twenty-first aspect.
In the configuration described above, the control means is configured to limit the output of the electric motor by gradually reducing the torque when the rotation speed of the electric motor becomes equal to or higher than a set value.

According to a twenty-third aspect of the present invention, in the fuel use restricted hybrid electric vehicle of the twenty-first aspect, the control means operates the internal combustion engine in an operating region where the fuel consumption and the exhaust gas are good. It is characterized by being configured as follows. According to a twenty-fourth aspect of the present invention, there is provided a fuel use-restricted hybrid electric vehicle in which a battery that can be charged by an external charging means, a driving electric motor that can drive wheels by electric power from the battery, and the driving wheels that are the electric motor. In a hybrid electric vehicle having an internal combustion engine that can be directly driven without intervention and a control means for controlling the operation of the electric motor and the internal combustion engine, the internal combustion engine after the battery is charged by the external charging means The internal combustion engine is provided with a fuel use state detecting means for detecting a change in the parameter according to the fuel use amount, and the control means when the change in the parameter reaches a predetermined value from the detection result of the fuel use amount detecting means. It is characterized in that it is configured to limit the output of.

[0031]

In the fuel use limited hybrid electric vehicle according to the first aspect of the present invention, the electric motor from the battery is operated by the control of the control means to drive the wheels. This battery can be charged by the external charging means when the remaining capacity decreases, but when the remaining capacity of the battery decreases, the internal combustion engine is operated and the generator is driven by this internal combustion engine to generate the power. The wheels can be driven while the electric power generated by the machine is being supplied to the drive motor.

However, the fuel use state detecting means detects a change in the parameter according to the fuel use amount by the internal combustion engine after the battery is charged by the external charging means, and the fuel use amount detecting means detects the change. As a result, when the change in the parameter reaches a predetermined amount, the control means limits at least one of the output of the electric motor and the output of the internal combustion engine. That is, if the vehicle continues running while using fuel without external charging, the output of the electric motor or the internal combustion engine is limited at the stage when the fuel usage amount reaches a certain level, and the external power is output to the driver. Encourage them to recharge.

In the fuel use restriction type hybrid electric vehicle according to the second aspect of the present invention described above, the fuel refueling amount detecting means as the fuel use state detecting means is provided after the battery is charged by the external charging means. The total refueling amount of fuel is detected, and when the total refueling amount reaches a predetermined value, the control means limits the output of the electric motor and prompts the driver to perform external charging.

In the fuel use restriction type hybrid electric vehicle according to the third aspect of the present invention, the fuel amount detecting means detects the fuel amount in the fuel tank, and the fuel refueling amount detecting means detects the fuel amount. The total refueling amount is detected based on the detection information from the means. In the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 4, the fuel refueling amount detecting means sets the fuel amount immediately after the battery is charged by the external charging means to the initial value of the total refueling amount. Then, the total refueling amount is calculated by adding the refueling amount for each refueling to the initial value.

In the fuel use restriction type hybrid electric vehicle according to the fifth aspect of the present invention, the refueling port lid opening / closing detecting means detects the open / closed state of the fuel refueling port lid, and the fuel amount detecting means determines the fuel amount in the fuel tank. To detect. Then, the fuel refueling amount detection means detects the fuel amount detected when the fuel refueling port lid is opened based on the detection information from the refueling port lid opening / closing detection means and the fuel amount detecting means, and the fuel refueling port lid immediately thereafter. The refueling amount for each refueling is calculated from the fuel amount detected at the time of closing.

In the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 6, the abnormality detecting means detects an abnormality in the route for transmitting the detection result from the fuel amount detecting means to the fuel refueling amount detecting means. When the abnormality is detected by the abnormality detecting means, the control means limits the output of the electric motor regardless of the detection result of the fuel refueling amount detecting means, and restores the path for transmitting the detection result (that is, Encourage you to make a connection.

In the fuel use limited hybrid electric vehicle of the present invention as set forth in claim 7, the fuel amount detecting means detects the fuel amount in the fuel tank, and the fuel consumption detecting means as the fuel use state detecting means. Detects the total fuel consumption amount after the battery is charged by the external charging means, based on the detection information from the fuel amount detecting means. Then, the control means limits the output of the electric motor when the total fuel consumption amount reaches a predetermined value from the detection result of the fuel consumption amount detection means, and urges the driver to perform external charging.

In the fuel use restricted hybrid electric vehicle of the present invention as set forth in claim 8, the fuel consumption amount detecting means subtracts the fuel amount after traveling from the fuel amount before traveling of the vehicle for one traveling. The total fuel consumption is calculated by calculating the total fuel consumption of each vehicle and adding the fuel consumption for each run. In the fuel use restriction type hybrid electric vehicle according to the present invention as set forth in claim 9, the abnormality detecting means detects an abnormality in the path for transmitting the detection result from the fuel amount detecting means to the fuel consumption amount detecting means, and the control is performed. When the abnormality is detected by the abnormality detecting means, the means limits the output of the electric motor regardless of the detection result of the fuel consumption detecting means, and restores (ie, connects) the path for transmitting the detection result. Encourage you to do it.

In the fuel use restricted hybrid electric vehicle of the present invention as set forth in claim 10 described above, the mileage detecting means as the fuel using state detecting means controls the internal combustion after the battery is charged by the external charging means. Detecting the total number of miles traveled when the engine is used, the control means limits the output of the electric motor when the number of total miles traveled when the internal combustion engine reaches a predetermined value from the detection result of the distance detection means. , Prompt the driver to perform external charging.

In the fuel use limited hybrid electric vehicle of the present invention as set forth in claim 11, the mileage detecting means includes the use information of the internal combustion engine and the detection information from the wheel speed detecting means mounted on the vehicle. Based on the above, the total number of miles traveled when the internal combustion engine is used is detected. Claim 12 above
In the fuel use restriction type hybrid electric vehicle of the present invention described, the abnormality detection means detects an abnormality in the route for transmitting the detection result from the wheel speed detection means to the mileage detection means,
When the abnormality is detected by the abnormality detecting means, the control means limits the output of the electric motor regardless of the detection result of the wheel speed detecting means and restores the path for transmitting the detection result (that is,
Encourage you to make a connection.

In the fuel use limited hybrid electric vehicle according to the present invention as set forth in claim 13, the traveling distance detecting means as the fuel using state detecting means is integrated after the battery is charged by the external charging means. The fuel refueling amount detecting means for detecting the refueling amount and the total traveling distance when the internal combustion engine is used after the battery is charged by the external charging means, and the control means detects the refueling amount of the fuel refueling amount. Whether the total amount of lubrication reaches a predetermined value from the detection result, or
When the total number of running distances when the internal combustion engine is used reaches a predetermined value from the detection result of the running distance detecting means, the output of the electric motor is limited. This prompts the driver to perform external charging.

In the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 14 described above, the abnormality detecting means is:
When the abnormality is detected by the abnormality detecting means, the control means detects an abnormality in the path for transmitting the detection result from the fuel amount detecting means to the fuel refueling amount detecting means. Regardless of the result, the output of the electric motor is limited to prompt the restoration (that is, the connection) of the path for transmitting the detection result.

In the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 15, the abnormality detecting means detects an abnormality in the route for transmitting the detection result from the wheel speed detecting means to the traveling distance detecting means, When the control means detects the abnormality by the abnormality detection means, the output of the electric motor is limited regardless of the detection result of the wheel speed detection means, and the path for transmitting the detection result is restored (that is, connection). Encourage them to do.

In the fuel use restricted hybrid electric vehicle of the present invention as set forth in claim 16, the operating time detecting means detects the operating time of the internal combustion engine after the battery is charged by the external charging means. The control means limits the output of the electric motor when the operating time of the internal combustion engine reaches a predetermined value from the detection result of the operating time detecting means. In the fuel use restricted hybrid electric vehicle of the present invention as set forth in claim 17, the operating time detecting means detects the operating time of the internal combustion engine based on the internal combustion engine usage information and the timer.

In the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 18, the warning means is activated and warns when the change in the parameter reaches a predetermined amount from the detection result of the fuel usage amount detection means. Do. In the fuel use limited hybrid electric vehicle of the present invention as set forth in claim 19, the predetermined amount of change in the parameter associated with the operation of the warning means is greater than the predetermined amount of change in the parameter for limiting the output of the electric motor. Is also set small. Therefore, if a warning is issued by the warning means before the output of the electric motor is limited and the driver performs external charging in response to the warning, a situation in which the output of the electric motor is limited can be avoided.

In the fuel use limiting hybrid electric vehicle of the present invention as set forth in claim 20, the control means limits the output of the electric motor when the change in the parameter reaches the predetermined amount. In the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 21, the control means limits the output of the electric motor by limiting the maximum torque of the electric motor.

In the fuel use limited hybrid electric vehicle of the present invention as set forth in claim 22, the control means gradually reduces the torque when the rotation speed of the electric motor becomes equal to or more than a set value, thereby outputting the electric power of the electric motor. To limit. Therefore, when the rotation speed of the electric motor is low, a torque that is unsupported for traveling is obtained, and substantial torque limitation is performed during high-speed operation.

In the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 23, the control means operates the internal combustion engine in a driving range where the fuel consumption and the exhaust gas are good. In the fuel use restricted hybrid electric vehicle of the present invention described in claim 24, the drive electric motor is operated by the electric power from the battery through the control of the control means to drive the wheels. This battery can be charged by the external charging means when the remaining capacity decreases. However, when the remaining capacity of the battery decreases, the drive wheels can be directly driven by the internal combustion engine without passing through the electric motor. it can.

However, the fuel use state detecting means detects a change in the parameter according to the fuel use amount by the internal combustion engine after the battery is charged by the external charging means, and the fuel use amount detecting means detects the change. From the result, when the change in the parameter reaches a predetermined amount, the control means limits the output of the internal combustion engine. That is, if the vehicle continues running while using fuel without external charging, the output of the electric motor or the internal combustion engine is limited at the stage when the fuel usage amount reaches a certain level, and the external power is output to the driver. Encourage them to recharge.

[0050]

Embodiments of the present invention will be described below with reference to the drawings. First, a fuel use restriction type hybrid electric vehicle as a first embodiment of the present invention will be described. FIG. 1 is a diagram schematically showing a configuration of a main part thereof. As shown in FIG. An example in which the present invention is applied to a series hybrid electric vehicle will be described.

In FIG. 1, reference numeral 1 denotes a battery. This battery 1 may be repeatedly charged by an external charger (not shown) not mounted on the vehicle, in addition to charging by a generator 6 mounted on the vehicle which will be described later. it can. Reference numeral 2 denotes a motor (a traveling electric motor) supplied with electric power from the battery 1. The motor 2 drives the drive wheels 3A and 3B of the automobile. The output of the motor 2 is controlled by a motor controller (electric motor control means) 4. The motor controller 4 controls the output request operation of the driver (that is, the depression state of an accelerator pedal (not shown)) and the current operating state of the motor 2. Based on this, the output of the motor 2 is controlled.

Further, in the motor controller 4, when a braking command is detected from depression of a brake pedal (not shown) or the like, the motor 2 is switched to a generator to drive wheels 3A, 3B.
It is possible to perform regenerative braking that gives a braking force while generating power with rotational energy from. Furthermore, 6 is a generator, and this generator 6 is an internal combustion engine for power generation (hereinafter,
It is designed to be driven by an engine 7). The battery 1 is connected so that the battery 1 can be charged with the electric power generated by the generator 6. The output of the engine 7 is controlled by adjusting the throttle opening degree or the like (not shown). The control of the generator 6 and the engine 7 is performed by the travel management controller 9 together with the control of the motor controller 4. There is.

Reference numeral 11 denotes a remaining capacity meter for detecting and displaying the remaining capacity of the battery, and the remaining capacity information of the battery is sent from the remaining capacity meter 11 to the running management controller 9. Further, reference numeral 12 is a fuel gauge constituting a fuel use state detecting means, which is provided in the fuel tank 13. The detection signal of the fuel amount in the fuel tank 13 by the fuel gauge is sent to the fuel meter 15 in the combination meter panel 14 and also to the travel management controller 9. The fuel meter 15 displays the fuel amount on the basis of the fuel amount detection signal.

Reference numeral 16 denotes a filler cap opening / closing sensor, which is composed of, for example, a button switch which is pressed when closed and released when opened. The open / closed detection signal of the fuel supply port lid open / close sensor 16 is also sent to the travel management controller 9. The travel management controller 9 normally controls the motor controller 4, the generator 6, and the engine 7 based on command information from a driver such as an accelerator pedal (not shown) and battery remaining capacity information from the remaining capacity meter 11. In addition to this, the remaining capacity meter 11, the fuel gauge 12, and the filler cap opening / closing sensor 1
Based on the detection information from 6, the total refueling amount after the battery is externally charged (total refueling amount) is calculated, and when the total refueling amount exceeds a preset set value, the output of the electric motor 2 is limited. Control to do.

That is, when the running management controller 9 detects that the filler cap is opened based on the detection information from the filler cap opening / closing sensor 16, it stores the first fuel amount LO obtained from the fuel gauge 12 at this time. Then, when it is detected that the fuel filler lid is closed next time, the second fuel amount LC obtained from the fuel gauge 12 is stored at this time, and the fuel filler lid is opened based on these fuel amounts LO and LC. The fuel amount increment (= LC-LO), that is, the amount of refueling, from the time the valve is closed to the time it is closed is calculated.

Such a refueling amount (= LC-LO) is calculated for each refueling degree (actually, for each opening / closing of the refueling port lid), and is added to the calculated value of the refueling amount up to the previous time to obtain the total refueling. Calculate the amount (total refueling amount). The value of this total refueling amount is reset when the battery is externally charged. Here, when the battery is externally charged, the fuel amount at this time is set as the initial value of the total refueling amount. Therefore, the value of the total refueling amount here is the sum of the total refueling amount itself and the amount of fuel remaining in the fuel tank, and can also be called a consumable amount of fuel.

Whether or not the battery is externally charged is determined based on the remaining capacity information of the battery from the remaining capacity meter 11, and when the remaining capacity value reaches a predetermined charging rate, it is determined that the battery is externally charged. This predetermined charging rate is generally sufficiently higher than the range of charging rates performed during power generation travel, and external charging and internal charging (charging by an on-vehicle generator) can be distinguished.

In the driving management controller 9,
When the value of the total amount of oil supplied after externally charging the battery thus obtained exceeds the set value, the output of the electric motor 2 is limited, and when the battery is externally charged again, the output restriction of the electric motor 2 is released. It is supposed to do. In addition to this, when the total amount of refueling exceeds the set value, the alarm lamp 17 for overfilling the amount of refueling is turned on. The output limit of the electric motor 2 is set so that the driver can fully feel the output shortage of the vehicle, but can somehow move to a place where external charging is performed.

Here, a specific example of the output limitation of the electric motor 2 will be described with reference to FIGS. In these figures, the solid line shows the performance characteristics under normal conditions, and the broken line shows the performance characteristics under restriction. 2 shows the vehicle speed (or the electric motor 2
The rotational speed of the electric motor 2 is gradually reduced when the rotational speed of the electric motor 2 is greater than or equal to the set value. Therefore, when the vehicle speed (or the rotation speed of the electric motor 2) is a low speed equal to or lower than the set value, the torque is not limited, and the required driving force can be obtained during the climbing or starting. On the other hand, torque limitation is performed when the vehicle speed (or the rotation speed of the electric motor 2) is higher than the set value, and the driver is made to feel the output shortage of the vehicle through this torque limitation and urges to perform external charging.

Further, the one shown in FIG. 3 limits the maximum torque regardless of the rotation speed of the electric motor, and prompts the driver to perform external charging by making the driver feel that the maximum torque of the vehicle is insufficient. . Although either method can be implemented, the output limiting method as shown in FIG. 2 is preferable in terms of practical use in consideration of performance during climbing or starting.

Furthermore, a disconnection detecting means 18A for detecting disconnection of the signal line 12A from the fuel gauge 12 is provided, and the running management controller 9 detects the disconnection of the signal line 12A based on the detection information of the disconnection detecting means 18A. At the time of disconnection, the output of the electric motor 2 is limited regardless of the value of the total amount of lubrication, and the signal line 1 can be repaired for disconnection.
When 2A is restored (that is, connected) again, the output limitation of the electric motor 2 is released.

With such a configuration, in the fuel use limiting hybrid electric vehicle of the first embodiment, control for fuel use limitation is performed, for example, as shown in FIG. That is, in the driving management controller 9,
First, the disconnection of the signal line 12A of the fuel gauge 12 (fuel gauge disconnection) based on the information from the disconnection detection means 18A.
Is detected (step A1), and if a fuel gauge disconnection is detected, the output of the electric motor 2 is limited (step A2).

On the other hand, if the fuel gauge disconnection is not detected, it is determined based on the information from the fuel filler cover opening / closing sensor 16 whether the fuel filler cover is opened (step A3).
The total amount of refueling is calculated when the opening of the refueling port lid is detected. That is, when the fuel filler cap is opened, the fuel gauge 12
The first fuel amount LO obtained from
4) Next, store the second fuel amount LC obtained from the fuel gauge 12 when the filler cap is closed (step A).
5). Then, based on these fuel amounts LO and LC,
The total fuel supply amount is calculated by adding the increment (= LC-LO) of the fuel amount from the opening to the closing of the fuel filler cap to the calculated value of the fuel supply amount up to the previous time (that is, the previous total fuel supply amount). Calculate (step A6).

Furthermore, it is judged whether or not the total amount of refueling has reached a preset value (step A
7) When the total amount of refueling reaches a predetermined value, the output of the electric motor 2 is limited (step A8), and the alarm lamp 17 for overfilling the amount of refueling is turned on (step A9). Then, it is determined based on the remaining capacity information of the battery from the remaining capacity meter 11 whether the battery is externally charged (step A10). If the battery is not externally charged, the output limit of the electric motor 2 is limited. (Step A8) and lighting of the alarm lamp 17 (step A9) are continued. When the battery is externally charged, the value of total refueling amount is reset (step A11). That is, the fuel amount at the time when it is determined that the battery is externally charged is set as the initial value of the total refueling amount. Furthermore, in step A12,
The output restriction of the electric motor 2 is released.

In step A12, if the alarm lamp 17 is on, it is turned off.

On the other hand, if the total amount of refueling does not reach the preset predetermined value, the output of the electric motor 2 is not limited, and the process proceeds to step A13, where the remaining capacity information of the battery from the remaining capacity meter 11 is used. It is determined whether or not the battery is externally charged, and if the battery is externally charged, the value of the total amount of refueling is reset (step A14). That is, the fuel amount at the time when it is determined that the battery is externally charged is set as the initial value of the total refueling amount. In any case (in the case of step A13 and in the case of step A14), the process proceeds to step A12, and the output limitation of the electric motor 2 is released.

Generally, step A13 and step A1
Since the output limitation is not performed on the route of No. 4, it is not necessary to cancel the output limitation of the electric motor 2 in this case.
If this is restored from the state of the fuel gauge disconnection,
Output restriction may be performed along the route of step A13 or step A14. In this case, the output restriction of the electric motor 2 is released.

In this way, without external charging,
As the amount of fuel refueling (strictly speaking, the amount of fuel that can be consumed) increases, the output of the electric motor 2 is limited, so that the driver feels that the output of the vehicle is insufficient and inevitably performs external charging. Become. In addition, alarm lamp 1 for over refueling amount
By turning on 7, the driver can recognize that the decrease in the output is not a malfunction but a warning caused by an excess amount of oil supply.

Since the driver cannot freely drive when the output is reduced in this way, he or she always keeps sufficient capacity of the battery by external charging, and even in a hybrid electric vehicle, the internal combustion engine is operated. It will run without relying on the engine. As a result, it becomes possible to sufficiently obtain the intended effect of suppressing the atmospheric pollution of the electric vehicle while allowing the vehicle to travel by the internal combustion engine in an emergency.

A modification of the first embodiment will be described here. This modification basically has the same contents as the first embodiment, but the timing of lighting the alarm lamp 17 is different. That is, in the first embodiment, when the total amount of lubrication exceeds the set value, the output of the electric motor 2 is limited and the alarm lamp 17 is turned on at the same time. When the set value of 1 is exceeded, the alarm lamp is turned on, and then when the total amount of refueling exceeds the second set value that is set to a value larger than the first set value, the output limit of the electric motor 2 is limited. Is configured to do.

A specific control example for fuel limitation will be described with reference to FIG. Steps A1 to A6 are exactly the same as steps A1 to A6 of the first embodiment. Step A6
When the total refueling amount is calculated in step S20, it is determined whether or not the total refueling amount has reached the preset first set value (step A20), and the total refueling amount is set to the first set value. When it reaches, the alarm lamp 17 is turned on (step A21).

Further, it is judged whether or not the battery is externally charged on the basis of the battery remaining capacity information from the remaining capacity meter 11 (step A22). If the battery is not externally charged, the total charge is calculated. It is determined whether or not the refueling amount has reached a second set value preset to a value larger than the first set value (step A23). When the total amount of refueling reaches the second set value, the output of the electric motor 2 is limited (step A24).

Next, it is judged whether or not the battery is externally charged based on the battery remaining capacity information from the remaining capacity meter 11 (step A25). If the battery is not externally charged, the alarm lamp 17 With the lighting of, the output limitation of the electric motor 2 is continued. The above is the content of the control performed when the vehicle continues traveling without being charged externally.

On the other hand, if external charging is performed before the total amount of refueling reaches the first set value, the value of the total amount of refueling is reset (step A14). That is, the amount of fuel at the time when external charging is determined is set as the initial value of the total amount of refueling. In addition, the state where the refueling amount over alarm lamp 17 is lit, that is, the total refueling amount without external charging is the first
When the external charging is performed in the state between the set value of 1 and the second set value, the value of the total amount of refueling is also reset (step A26). Further alarm lamp 17
Is lit and the output of the electric motor 2 is limited, that is, when external charging is performed with the total amount of refueling without external charging exceeding the second set value, the value of the total amount of refueling is still present. Is reset (step A27). In any of these steps A14, A26, A27, since external charging is no longer required and the output limitation of the electric motor 2 is no longer necessary, the output limitation of the electric motor 2 is released or the alarm lamp 17 is turned off (step A12).

Generally, step A13 and step A1
Since the output limitation is not performed on the route of No. 4, it is not necessary to cancel the output limitation of the electric motor 2 in this case.
If this is restored from the state of the fuel gauge disconnection,
Output restriction may be performed along the route of step A13 or step A14. In this case, the output restriction of the electric motor 2 is released.

In this way, without external charging,
As the fuel refueling amount, that is, the fuel consumable amount increases, the output of the electric motor 2 is finally limited as in the first embodiment, so that the driver feels that the output of the vehicle is insufficient, which is inevitable. External charging will be performed. In particular, in this modified example, the alarm amplifier 17 is turned on before the output of the electric motor 2 is limited. Therefore, if the driver continues traveling without external charging, the output will be limited in due time. As a result, external charging is performed before the output is limited.

Further, even when the signal line is broken, the motor 2
Since the output is limited, even if the internal combustion engine cannot be detected to be overused at the time of disconnection, this can be warned and promptly promptly recover (connect) it. Of course, the electric vehicle's originally intended effect of suppressing air pollution can be sufficiently obtained. Next, a fuel use restriction type hybrid electric vehicle as a second embodiment of the present invention will be described. FIG. 6 is a diagram schematically showing a configuration of a main part thereof, and although not shown, a series type hybrid electric vehicle is also shown in this embodiment. It shall be adopted for electric vehicles.

In FIG. 6, reference numeral 9 is a running management controller. A remaining capacity meter 11 detects and displays the remaining capacity of the battery, and the remaining capacity information of the battery is sent from the remaining capacity meter 11 to the travel management controller 9. Reference numeral 19 is a wheel speed sensor, and wheel speed information is sent from the wheel speed sensor 19 to the travel management controller 9.

In the driving management controller 9,
Normally, the motor controller 4, the generator 6, and the engine 7 (above, refer to FIG. 1) are controlled based on command information from a driver such as an accelerator pedal (not shown) and battery remaining capacity information from the remaining capacity meter 11. However, in addition to this, based on the detection information from the remaining capacity meter 11 and the wheel speed sensor 19, the battery is externally charged and the trip distance (travel distance) due to the power generation traveling thereafter is calculated, and this trip distance is preset. When the set value is exceeded, control is performed to limit the output of the electric motor 2.

That is, the traveling management controller 9 calculates the trip distance while integrating the detection result from the wheel speed sensor 19 while controlling the electric power generation traveling. This trip distance is always integrated during power generation running until the battery is externally charged, and is reset to 0 when the battery is externally charged. Whether or not the battery is externally charged can be determined in the same manner as in the first embodiment.

In the driving management controller 9,
When the value of the trip distance after the battery is externally charged exceeds the set value, the output of the electric motor 2 is limited, and when the battery is externally charged again, the output restriction of the electric motor 2 is released. In addition to this, a value obtained by subtracting the trip distance from the set value is calculated and displayed as the remaining distance on the remaining distance display meter 20 in the combination meter panel 14.

Further, a disconnection detecting means 18B for detecting disconnection of the signal line 19A from the wheel speed sensor 19 is provided, and the running management controller 9 includes:
Based on the detection information of the disconnection detection means 18B, when the signal line 12A is disconnected, the output of the electric motor 2 is limited regardless of the value of the trip distance, and the signal line 1 is repaired by disconnection or the like.
When 9A is restored (that is, connected) again, the output limitation of the electric motor 2 is released.

With such a configuration, the fuel use limiting hybrid electric vehicle of this embodiment is controlled to limit the fuel use, as shown in FIG. 7, for example.
That is, the traveling management controller 9 first determines whether or not the vehicle is traveling in the power generation state (step B
1) If the vehicle is not in the power generation traveling, the process returns, and if it is in the power generation traveling, the process proceeds to step B2, and the signal line 19A of the wheel speed sensor 19 is disconnected (wheel speed input disconnection) based on the information from the disconnection detection means 18B. Determine whether or not it was detected. When the wheel speed input disconnection is detected, the output of the electric motor 2 is limited (step B3).

On the other hand, if the wheel speed input disconnection is not detected, the trip distance is calculated while integrating the detection result from the wheel speed sensor 19 (step B4). That is, the trip distance ^t is calculated by adding the trip distance increment ΔL to the previous trip distance ^t-dt . Then, it is determined whether or not the trip distance has reached a predetermined value set in advance (step B5), and when the trip distance reaches the predetermined value, the output of the electric motor 2 is limited (step B6). Then, it is determined based on the remaining capacity information of the battery from the remaining capacity meter 11 whether or not the battery is externally charged (step B7). If the battery is not externally charged, the output limit of the electric motor 2 is limited. (Step B6)
To continue.

When the battery is externally charged, the trip distance value is reset to 0 (step B8). That is, the trip distance initial value is A0. Further, in step S9, the output limitation of the electric motor 2 is released. On the other hand, if the trip distance does not reach the predetermined value set in advance, the output of the electric motor 2 is not limited, and the process proceeds to step B10 to calculate a value obtained by subtracting the trip distance from the set value and use this as the remaining distance. The remaining distance display meter 20 outputs and displays it. Then, it is determined whether or not the battery is externally charged based on the battery remaining capacity information from the remaining capacity meter 11 (step B11), and if the battery is externally charged, as in step B8. The trip distance value is reset to 0 (step B12).

In any case (in the case of step B11 and in the case of step B12), the process proceeds to step B9 to release the output limitation of the electric motor 2. Generally, in the route of step B11 or step B12, output limitation is not performed, so in this case, it is not necessary to release the output limitation of the electric motor 2, but when this is restored from the state of the wheel speed input disconnection. May limit the output in the route of step B11 or step B12. In this case, the output limitation of the electric motor 2 is released.

In this way, in this embodiment as well, if the amount of fuel supply (strictly speaking, the amount of fuel that can be consumed) increases without performing external charging, the output of the electric motor 2 is limited. The driver feels that the vehicle output is insufficient and inevitably starts external charging. In addition, the remaining distance display allows the driver to recognize that the decrease in output is not a malfunction but a warning caused by the overrun of power generation.

As a result, the driver can drive the hybrid electric vehicle without relying on the internal combustion engine, and the vehicle can be driven by the internal combustion engine in an emergency or the like, while at the same time, the atmosphere originally intended by the electric vehicle can be achieved. It becomes possible to sufficiently obtain the effect of suppressing the pollution. Further, even when the signal line is disconnected, the output of the electric motor 2 is limited. Therefore, even if the internal combustion engine cannot be overused at the time of disconnection, this is warned and promptly promptly restores (connects) it. be able to. Of course, the electric vehicle's originally intended effect of suppressing air pollution can be sufficiently obtained.

Next, a fuel use limited hybrid electric vehicle as a third embodiment of the present invention will be described.
FIG. 8 is a diagram schematically showing the construction of the main part thereof, and although not shown, it is assumed that this embodiment is also adopted in a series hybrid electric vehicle. This embodiment is a combination of the first embodiment and the second embodiment. In FIG. 8, the same symbols as those in FIGS. 1 and 6 indicate the same things. Since all of them have already been described, they will not be described again here. However, the running management controller 9 of this embodiment includes the remaining capacity meter 11, the fuel gauge 12, and the fuel filler cap opening / closing sensor 1.
Based on the detection information from 6, the total refueling amount after the battery is externally charged (total refueling amount) is calculated, and when the total refueling amount exceeds a preset set value, the output of the electric motor 2 is limited. Further, based on the detection information from the remaining capacity meter 11 and the wheel speed sensor 19, the battery is externally charged and the trip distance (traveling distance) due to the power generation traveling thereafter is calculated, and the trip distance is set in advance. When the set value is exceeded, the output of the electric motor 2 is limited.

In other words, in the travel management controller 9, whether the total amount of refueling (fuel consumable amount) reaches a predetermined value without externally charging the battery, or the trip distance exceeds the set value without externally charging the battery. If any of the above occurs, the output of the electric motor 2 is limited. With such a configuration, the fuel use restriction type hybrid electric vehicle according to the present embodiment has, for example, FIG.
As shown in, the control for limiting the fuel usage is performed.

That is, the traveling management controller 9 first determines whether or not the disconnection of the signal line 12A of the fuel gauge 12 (fuel gauge disconnection) is detected based on the information from the disconnection detection means 18A (step C).
1) When the fuel gauge disconnection is detected, the output of the electric motor 2 is limited (step C2). On the other hand, if the fuel gauge disconnection is not detected, it is determined whether or not the fuel filler cap is opened based on the information from the fuel filler cap opening / closing sensor 16 (step C3). When the opening of the fuel filler cap is detected, the first fuel amount LO obtained from the fuel gauge 12 at this time is stored (step C4), and the second fuel obtained from the fuel gauge 12 when the fuel filler cap is closed next time. The quantity LC is stored (step C5). Then, these fuel amounts LO,
Based on LC, the increment (= LC-LO) of the fuel amount from the opening to the closing of the refueling port lid is added to the calculated value of the refueling amount up to the previous time (that is, the previous total refueling amount). , Total refueling amount is calculated (step C6).

Further, it is judged whether or not the total amount of refueling has reached a preset predetermined value (step C
7) When the total amount of refueling reaches a predetermined value, the output of the electric motor 2 is limited (step C8), and the alarm lamp 17 for overfilling the amount of refueling is turned on (step C9). Then, it is determined whether or not the battery is externally charged based on the battery remaining capacity information from the remaining capacity meter 11 (step C10). If the battery is not externally charged, the output limit of the electric motor 2 is limited. (Step C8) and lighting of the alarm lamp 17 (step C9) are continued. When the battery is externally charged, the value of total refueling amount is reset (step C11). That is, the fuel amount at the time when it is determined that the battery is externally charged is set as the initial value of the total refueling amount.

On the other hand, if the total amount of refueling does not reach the preset predetermined value, the output of the electric motor 2 is not limited, and the routine proceeds to step C12, where the remaining capacity information of the battery from the remaining capacity meter 11 is used. It is determined whether or not the battery is externally charged, and when the battery is externally charged, the value of the total amount of refueling is reset (step C13). That is, the fuel amount at the time when it is determined that the battery is externally charged is set as the initial value of the total refueling amount.

Then, it is judged whether or not the vehicle is running for power generation (step C14). If it is not running for power generation, the routine returns. If it is running for power generation, the procedure proceeds to step C15, where information from the disconnection detecting means 18B is used. Based on this, it is determined whether or not the disconnection (wheel speed input disconnection) of the signal line 19A of the wheel speed sensor 19 is detected. If a wheel speed input disconnection is detected,
The output of the electric motor 2 is limited (step C16).

On the other hand, if the disconnection of the wheel speed input is not detected, the trip distance is calculated while integrating the detection result from the wheel speed sensor 19 (step C17). And
It is determined whether or not the trip distance has reached a preset predetermined value (step C18), and when the trip distance reaches the predetermined value, the output of the electric motor 2 is limited (step C).
19) Then, it is determined based on the remaining capacity information of the battery from the remaining capacity meter 11 whether or not the battery is externally charged (step C20). If the battery is not externally charged, the output limit of the electric motor 2 is limited. (Step C20) is continued.

When the battery is externally charged, the trip distance value is reset to 0 (step B21).
That is, the trip distance initial value is A0. Further, in step S22, the output limitation of the electric motor 2 is released. On the other hand, if the trip distance does not reach the predetermined value set in advance, the output of the electric motor 2 is not limited, and the process proceeds to step C23 to calculate a value obtained by subtracting the trip distance from the set value and set this as the remaining distance. The remaining distance display meter 20 outputs and displays it. Then, it is determined whether or not the battery is externally charged based on the battery remaining capacity information from the remaining capacity meter 11 (step C24), and if the battery is externally charged, as in step B8. The trip distance value is reset to 0 (step C25).

In any case (in the case of step C24 and in the case of step C25), the process proceeds to step C22, and the output restriction of the electric motor 2 is released. Generally, step C24
Since the output limitation is not performed on the route of step C25 or step C25, it is not necessary to cancel the output limitation of the electric motor 2 in this case. However, when this is restored from the state of the fuel gauge disconnection, step C24 or step C24 is performed. Output limitation may be performed on the route of C25. In this case, the output limitation of the electric motor 2 is released.

In this way, in this embodiment as well, if the fuel supply amount (strictly speaking, the fuel consumable amount) increases without performing external charging, the output of the electric motor 2 is limited. The driver feels that the vehicle output is insufficient and inevitably starts external charging. In addition, the remaining distance display allows the driver to recognize that the decrease in output is not a malfunction but a warning caused by the overrun of power generation. In particular, since the two systems of total refueling amount (fuel consumable amount) and trip distance are used as parameters according to the amount of fuel used, power generation running over is strictly checked.

As a result, the driver can thoroughly drive the hybrid electric vehicle without relying on the internal combustion engine, and the vehicle can be driven by the internal combustion engine in an emergency or the like, while the electric vehicle is originally intended. It becomes possible to obtain a sufficient effect of suppressing air pollution.
Further, even when the signal line is broken, the output of the electric motor 2 is limited. Therefore, even if the internal combustion engine cannot be overused when the line is broken, a warning is given and this is promptly restored (connection).
Can be encouraged to let. Of course, the electric vehicle's originally intended effect of suppressing air pollution can be sufficiently obtained.

The parameter according to the amount of fuel used is not limited to such total refueling amount, trip distance, etc., and, for example, fuel generation running time, operating time of internal combustion engine, etc. are used. If the parameter is a parameter according to the amount used, it is possible to detect the fuel usage state by detecting this change and detect overuse of the internal combustion engine.

In the modification of the first embodiment, the alarm lamp is turned on when the total amount of refueling exceeds the first set value, and then the total amount of refueling is set to a value larger than the first set value. Although the output of the electric motor 2 is limited when the set second set value is exceeded, the same modified example can be implemented in the second and third embodiments.

That is, in the second embodiment, the alarm lamp is turned on when the trip distance exceeds the first set value, and then the trip distance is set to a value larger than the first set value. When the set value of 2 is exceeded, the electric motor 2
It is possible to obtain the modified example by configuring so as to limit the output. In the third embodiment, the alarm lamp is turned on when the total refueling amount exceeds the first set value or when the trip distance exceeds the first set value, and then the total refueling amount changes to the first set value. When the second set value set to a value larger than the set value of 1 is exceeded, or when the trip distance exceeds the second set value set to a value larger than the first set value. By configuring so that the output of the electric motor 2 is limited, the modification can be obtained.

Although the first to third embodiments are all applied to the series type hybrid electric vehicle, they can be similarly applied to the parallel type hybrid electric vehicle as shown in FIG. . Specifically, steps A2 and A shown in FIG. 4 of the first embodiment.
8, steps B3, B4 shown in FIG. 7 of the second embodiment,
Steps C2, C8, C1 shown in FIG. 9 of the third embodiment
"Motor output limit" in 9 is "internal combustion engine output limit"
Instead of limiting the output of the internal combustion engine 7 in each of these steps, step A shown in FIG. 4 of the first embodiment is performed.
12, step B9 shown in FIG. 7 of the second embodiment, third
In the parallel hybrid electric vehicle, the "motor output limit release" in step C22 shown in FIG. 9 of the embodiment is replaced with "internal combustion engine output limit release" to release the output limit of the internal combustion engine 7. Can be similarly implemented.

Note that the output of the internal combustion engine 7 is limited in this way so that the driver is prompted to perform external charging can also be implemented in a series hybrid electric vehicle. Further, in the series type hybrid electric vehicle, it is possible to limit the outputs of both the motor 2 and the internal combustion engine 7 so as to prompt the driver to perform external charging.

However, in the series type hybrid electric vehicle, by limiting the output of the motor 2,
Since it is possible to operate the internal combustion engine 7 while maintaining the operating region where the fuel consumption and exhaust gas are good, it is preferable to limit the output of the motor 2.

[0106]

As described in detail above, according to the fuel use limited hybrid electric vehicle of the present invention as set forth in claim 1, a battery which can be charged by an external charging means and a wheel driven by electric power from the battery. In a hybrid electric vehicle comprising: a driving electric motor capable of driving, an internal combustion engine for driving a generator capable of supplying electric power to the driving electric motor, and a control means for controlling the operation of the electric motor and the internal combustion engine, the battery is The control means includes a fuel usage state detecting means for detecting a change in a parameter according to a fuel usage amount by the internal combustion engine after being charged by the external charging means, and the control means uses the detection result of the fuel usage amount detecting means. Since it is configured to limit at least one of the output of the electric motor and the internal combustion engine when the change in the parameter reaches a predetermined value, the hybrid electric Even if the vehicle is a moving vehicle, it is possible to promote running that does not rely on the internal combustion engine, and while still having the margin of being able to run with the internal combustion engine in an emergency, etc., it is possible to sufficiently obtain the effect of suppressing the atmospheric pollution originally intended by the electric vehicle. become able to.

According to the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 2, in the configuration of claim 1, the amount of fuel supply is used as the parameter,
The fuel use state detection means is configured as fuel refueling amount detection means for detecting a total refueling amount after the battery is charged by the external charging means, and the control means is a detection result of the fuel refueling amount detection means. Since it is configured to limit the output of the electric motor when the total amount of refueling reaches a predetermined value, it is possible to reliably detect a running state that depends on the internal combustion engine, and do not rely on the internal combustion engine even in a hybrid electric vehicle. The electric vehicle can sufficiently obtain the effect of suppressing air pollution, which is the original purpose of the electric vehicle, while the traveling can be promoted and the engine can be driven by the internal combustion engine in an emergency.

According to the fuel use restriction type hybrid electric vehicle of the third aspect of the present invention, in the configuration of the second aspect, the fuel amount detecting means for detecting the fuel amount in the fuel tank is provided, and the fuel refueling amount is provided. Since the detection means is configured to detect the total refueling amount on the basis of the detection information from the fuel amount detection means, it is easy and certain that a running state that depends on the internal combustion engine (that is, excessive fuel consumption) is performed. Can be detected.

According to the fuel use restriction type hybrid electric vehicle of the present invention as defined in claim 4, in the structure of claim 2 or 3, the fuel refueling amount detecting means is configured such that the battery is charged by the external charging means. Since the fuel amount immediately after the start is set as the initial value of the total refueling amount and the total refueling amount is calculated by adding the refueling amount for each refueling to the initial value, the internal refueling engine was relied upon. It is possible to easily and surely detect a traveling state (that is, excessive use of fuel).

According to the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 5, in the structure of claim 3 or 4, the fuel supply port lid opening / closing detecting means for detecting the open / closed state of the fuel supply port lid, and the fuel tank. A fuel amount detecting means for detecting the amount of fuel in the fuel supply amount detecting means,
The fuel amount detected when the fuel refueling port lid is opened, and the fuel amount detected when the fuel refueling port lid is closed immediately thereafter, based on the detection information from the refueling port lid opening / closing detecting means and the fuel amount detecting means. Therefore, since it is configured to calculate the amount of refueling for each refueling, it is possible to easily and reliably detect the traveling state (that is, the excessive use of fuel) that relies on the internal combustion engine.

According to the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 6, in the configuration of claim 3, the abnormality of the path for transmitting the detection result from the fuel detecting means to the fuel refueling amount detecting means. The control means is configured to limit the output of the electric motor regardless of the detection result of the fuel refueling amount detection means when the abnormality is detected by the abnormality detection means. Therefore, while warning of such an abnormality, it is possible to promote traveling that does not rely on the internal combustion engine, and also to promptly deal with this abnormality.

According to the fuel use restriction type hybrid electric vehicle of the present invention described in claim 7, in the configuration of claim 1, fuel quantity detecting means for detecting the fuel quantity in the fuel tank is provided, and the parameter is used as the parameter. The amount of fuel in the fuel tank is used, and the fuel usage state detecting means calculates the total fuel consumption amount after the battery is charged by the external charging means based on the detection information from the fuel amount detecting means. It is configured as a fuel consumption amount detecting means for detecting, and the control means is configured to limit the output of the electric motor when the total fuel consumption amount reaches a predetermined value from the detection result of the fuel consumption amount detecting means. It is said that it is possible to reliably detect the running state that depends on the internal combustion engine, to promote running that does not rely on the internal combustion engine even for hybrid electric vehicles, and to run with the internal combustion engine in an emergency etc. While leaving a margin, it is possible to obtain a sufficient effect of suppressing the atmosphere electric vehicle to the original object contamination.

According to the fuel use restriction type hybrid electric vehicle of the present invention described in claim 8, in the configuration of claim 7, the fuel consumption amount detecting means changes from the fuel amount before traveling to the fuel after traveling. The fuel consumption for one run is calculated by subtracting the amount, and the total fuel consumption is calculated by adding the fuel consumption for each run. The state (that is, excessive use of fuel) can be detected easily and reliably.

According to the fuel use restriction type hybrid electric vehicle of the present invention described in claim 9, in the configuration of claim 7 or 8, the detection result is transmitted from the fuel amount detection means to the fuel consumption amount detection means. An abnormality detecting means for detecting an abnormality of the path is provided, and when the abnormality is detected by the abnormality detecting means, the control means limits the output of the electric motor regardless of the detection result of the fuel consumption amount detecting means. Since it is configured, it is possible to promote traveling that does not rely on the internal combustion engine while warning such an abnormality, and to promptly promptly deal with this abnormality.

[0115] According to the fuel use restriction type hybrid electric vehicle of the tenth aspect of the present invention, in the configuration of the first aspect, the number of miles traveled by the vehicle while using the internal combustion engine is used as the parameter. The fuel use state detection means is configured as a travel distance detection means for detecting the total travel distance number when the internal combustion engine is used after the battery is charged by the external charging means, and the control means is the travel distance. Since the output of the electric motor is limited when the total traveling distance when the internal combustion engine is used reaches a predetermined value from the detection result of the detection means, it is possible to easily and surely detect the traveling state that depends on the internal combustion engine. Even if it is a hybrid electric vehicle, driving without relying on the internal combustion engine can be promoted. It is possible to obtain a sufficient effect of suppressing the contamination of the atmosphere of interest.

[0116] According to the fuel use restricted hybrid electric vehicle of the present invention described in claim 11, in the configuration of claim 10, the traveling distance detecting means includes the usage information of the internal combustion engine and the wheels equipped on the vehicle. Since it is configured to detect the total number of miles traveled when the internal combustion engine is used, based on the detection information from the speed detection means, it is possible to easily and reliably detect the traveling state depending on the internal combustion engine.

According to the fuel use restricted hybrid electric vehicle of the present invention as set forth in claim 12, in the structure of claim 11, the path abnormality for transmitting the detection result from the wheel speed detecting means to the traveling distance detecting means is abnormal. Since the control means is configured to limit the output of the electric motor irrespective of the detection result of the wheel speed detection when the abnormality detection means detects the abnormality, While warning of such an abnormality, it is possible to promote traveling that does not rely on the internal combustion engine, and also to promptly deal with this abnormality.

According to the fuel use limited hybrid electric vehicle of the present invention as set forth in claim 13, in the structure of claim 1, the fuel refueling amount as the parameter and the traveling distance of the vehicle while using the internal combustion engine. Number is used, the fuel usage state detecting means detects the total amount of refueling after the battery is charged by the external charging means, and the fuel refueling amount detecting means detects the total refueling amount after the battery is charged by the external charging means. Is configured as a traveling distance detection means for detecting the total number of traveling distances when using the internal combustion engine, the control means, the total refueling amount reaches a predetermined value from the detection result of the fuel refueling amount detection means, or, When the total number of mileages when the internal combustion engine is used reaches a predetermined value from the detection result of the mileage detection means, the output of the electric motor is limited.
It is possible to reliably detect a running state that relies on the internal combustion engine, and even a hybrid electric vehicle can promote running that does not rely on the internal combustion engine. The desired effect of suppressing the air pollution can be sufficiently obtained.

According to the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 14, in the structure of claim 13, the abnormality of the path for transmitting the detection result from the fuel detecting means to the fuel refueling amount detecting means. The control means is configured to limit the output of the electric motor regardless of the detection result of the fuel refueling amount detection means when the abnormality is detected by the abnormality detection means. Therefore, while warning of such an abnormality, it is possible to promote traveling that does not rely on the internal combustion engine, and also to promptly deal with this abnormality.

According to the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 15, in the structure of claim 13, the abnormality of the route for transmitting the detection result from the wheel speed detecting means to the traveling distance detecting means. Since the control means is configured to limit the output of the electric motor regardless of the detection result of the wheel speed detection when the abnormality detection means detects the abnormality. While warning of such an abnormality, it is possible to promote traveling that does not rely on the internal combustion engine, and also to promptly deal with this abnormality.

According to the fuel use restriction type hybrid electric vehicle of the present invention as set forth in claim 16, in the structure of claim 1, the operating time of the internal combustion engine is used as the parameter, and the fuel use state detecting means is used. Is configured as operating time detecting means for detecting the operating time of the internal combustion engine after the battery has been charged by the external charging means, and the control means operates the internal combustion engine based on the detection result of the operating time detecting means. Since the output of the electric motor is limited when the time reaches a predetermined value, if the operation relying on the internal combustion engine is performed for more than the limit, the output of the electric motor cannot be obtained as desired, and the hybrid electric vehicle is Can promote driving without relying on the internal combustion engine.

According to the fuel use restricted hybrid electric vehicle of the present invention as set forth in claim 17, in the structure of claim 16, the operating time detecting means is based on the use information of the internal combustion engine and a timer. Since it is configured to detect the operating time of the internal combustion engine, it is possible to reliably detect an operation that relies too much on the internal combustion engine, and promote traveling that does not rely on the internal combustion engine.

According to the fuel use restriction type hybrid electric vehicle of the present invention described in claim 18, in the configuration of claim 1, when the change in the parameter reaches a predetermined amount from the detection result of the fuel usage amount detecting means. By providing the warning means to operate, it is easy to notice this when the vehicle relies on the internal combustion engine too much, and it is possible to promote traveling that does not rely on the internal combustion engine. Further, when the output of the electric motor is limited, it is easy to understand the reason, and the effect of guiding the driver is further improved.

According to the fuel use restricted hybrid electric vehicle of the present invention as set forth in claim 19, in the configuration of claim 18, the predetermined amount of change in the parameter associated with the operation of the warning means is the output of the electric motor. Is set smaller than a predetermined amount of change in the parameter that limits
A warning is given by the warning means before the output of the electric motor is limited, so that the driver can be promptly prompted to perform external charging, and the driver operates the internal combustion engine without performing external charging despite the warning. If you continue driving,
By limiting the output of the electric motor, external charging of the driver can be further promoted.

According to the fuel use restricted hybrid electric vehicle of the present invention as defined in claim 20, in the configuration according to claim 1, the control means outputs the output of the electric motor when the change in the parameter reaches the predetermined amount. If the driver operates too much on the internal combustion engine, the driver recognizes this by limiting the output of the electric motor to perform external charging to perform operation that does not rely on the internal combustion engine. Can be promoted.

According to the fuel use restriction type hybrid electric vehicle of the present invention described in claim 21, in the configuration of claim 20, the control means limits the output of the electric motor by limiting the maximum torque of the electric motor. Since it is configured to limit, it is possible to make the driver aware of the operation that relied too much on the internal combustion engine without significantly affecting the normal driving, and perform the external charging to the driver to operate without relying on the internal combustion engine. Can be encouraged to carry out.

According to the fuel use limited hybrid electric vehicle of the present invention as set forth in claim 22, in the structure of claim 20, the control means applies the torque when the rotation speed of the electric motor becomes equal to or higher than a set value. Since it is configured to limit the output of the electric motor by gradually decreasing the torque, unsupported torque is obtained for running when the electric motor has a low rotation speed, such as when climbing or starting, and the torque is substantially limited. Is performed during high-speed driving, and it is possible to make the driver aware of driving that relies too much on the internal combustion engine while ensuring board climbing and starting characteristics.

According to the hybrid electric vehicle of limited fuel use of the present invention as set forth in claim 23, in the construction as set forth in claim 20, the control means controls the internal combustion engine in an operating range in which fuel consumption and exhaust gas are favorable. Since it is configured to operate, it is possible to efficiently operate the internal combustion engine with less air pollution. According to the fuel use restricted hybrid electric vehicle of the present invention as set forth in claim 24, the battery which can be charged by the external charging means, the drive electric motor which can drive the wheel by the electric power from the battery, and the drive wheel are provided. In a hybrid electric vehicle including an internal combustion engine that can be directly driven without an electric motor and a control unit that controls the operation of the electric motor and the internal combustion engine, the internal combustion engine after the battery is charged by the external charging unit. The engine includes fuel use state detection means for detecting a change in a parameter according to the amount of fuel used by the engine, and the control means detects the change in the parameter from a detection result of the fuel use amount detection means when the change reaches a predetermined value. By being configured to limit the output of the internal combustion engine, even a hybrid electric vehicle can be promoted to run without relying on the internal combustion engine. While leaving a margin that is in time, or the like can travel by the internal combustion engine, it is possible to obtain a sufficient effect of suppressing the atmosphere electric vehicle to the original object contamination.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a main part of a fuel use restriction type hybrid electric vehicle according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a specific example of output limiting characteristics of the electric motor of the fuel use limiting hybrid electric vehicle as the first embodiment of the present invention.

FIG. 3 is a diagram showing a specific example of output limiting characteristics of an electric motor of a fuel use limiting hybrid electric vehicle as a first embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the fuel use restriction type hybrid electric vehicle of the first embodiment of the present invention.

FIG. 5 is a flow chart showing an operation of a modified example of the fuel use restriction type hybrid electric vehicle as the first embodiment of the present invention.

FIG. 6 is a diagram showing a main configuration of a fuel use restriction type hybrid electric vehicle as a second embodiment of the present invention.

FIG. 7 is a flowchart showing an operation of a fuel use restriction type hybrid electric vehicle as a second embodiment of the present invention.

FIG. 8 is a diagram showing a configuration of essential parts of a fuel use limiting hybrid electric vehicle as a third embodiment of the present invention.

FIG. 9 is a flowchart showing the operation of a fuel use restriction type hybrid electric vehicle as a third embodiment of the present invention.

FIG. 10 is a configuration diagram schematically showing a series hybrid electric vehicle.

FIG. 11 is a configuration diagram schematically showing a parallel hybrid electric vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery 2 Motor (running electric motor) 3A, 3B Drive wheels 4 Motor controller (electric motor control means) 6 Generator 7 Internal combustion engine (engine) 9 Running management controller 11 Remaining capacity meter 12 Constituting fuel usage state detecting means Fuel gauge 12A, 12B Signal line 13 Fuel tank 14 Combination meter panel 15 Fuel meter 16 Refueling port lid opening / closing sensor 17 Refueling amount alarm lamp 18A Disconnection detecting means 19 Wheel speed sensor 19A Disconnection detecting means 20 Remaining distance display meter

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication location F02D 45/00 L (72) Inventor Shinya Furukawa 5-3-8 Shiba 5-chome, Minato-ku, Tokyo Mitsubishi Motors Kogyo Co., Ltd. (72) Inventor Masaaki Kato 5-3-8, Shiba, Minato-ku, Tokyo Mitsubishi Motors Co., Ltd. (72) Inventor Nobuyuki Kawamura 5-33-8, Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation Stock In the company

Claims (24)

[Claims] 1. A battery that can be charged by an external charging means, a driving electric motor that can drive wheels with electric power from the battery, and an internal combustion engine that drives a generator that can supply electric power to the driving electric motor. In a hybrid electric vehicle having a control means for controlling the operation of the electric motor and the internal combustion engine, detecting a change in a parameter according to the amount of fuel used by the internal combustion engine after the battery is charged by the external charging means. And a fuel use state detecting means, wherein the control means limits at least one of the output of the electric motor and the internal combustion engine when the change in the parameter reaches a predetermined value from the detection result of the fuel use amount detecting means. A fuel-use limited hybrid electric vehicle, which is configured as follows. 2. A fuel refueling amount is used as the parameter, and the fuel use state detecting means is configured as a fuel refueling amount detecting means for detecting a total refueling amount after the battery is charged by the external charging means. 2. The control means is configured to limit the output of the electric motor when the total amount of refueling reaches a predetermined value from the detection result of the fuel refueling amount detection means. Limited-fuel hybrid electric vehicle. 3. A fuel amount detecting means for detecting the amount of fuel in the fuel tank, wherein the fuel refueling amount detecting means detects the total refueling amount based on the detection information from the fuel amount detecting means. 3. The fuel limited hybrid electric vehicle according to claim 2, wherein the hybrid electric vehicle is limited in fuel consumption. 4. The fuel refueling amount detection means sets the fuel amount immediately after the battery is charged by the external charging means as an initial value of the total refueling amount, and the refueling amount for each refueling is set as the initial value. The fuel use restriction type hybrid electric vehicle according to claim 2 or 3, wherein the total fuel supply amount is calculated by adding. 5. A refueling port lid opening / closing detecting means for detecting an open / closed state of the fuel refueling port lid, and a fuel amount detecting means for detecting a fuel amount in a fuel tank, wherein the fuel refueling amount detecting means is opened / closed. Based on the detection information from the detection means and the fuel amount detection means, from the fuel amount detected when the fuel filler cap is opened and the fuel amount detected when the fuel filler cap is closed immediately thereafter, each of the above The fuel use limited hybrid electric vehicle according to claim 3 or 4, wherein the fuel use amount is calculated for each refueling. 6. An abnormality detecting means for detecting an abnormality in a path for transmitting a detection result from the fuel detecting means to the fuel refueling amount detecting means, wherein the control means detects the abnormality by the abnormality detecting means. 4. The fuel use restriction type hybrid electric vehicle according to claim 3, wherein the output of the electric motor is restricted regardless of the detection result of the fuel refueling amount detection means. 7. A fuel amount detecting means for detecting the fuel amount in the fuel tank, wherein the fuel amount in the fuel tank is used as the parameter, and the fuel use state detecting means is provided from the fuel amount detecting means. The fuel consumption amount detecting means for detecting the total fuel consumption amount after the battery is charged by the external charging means, based on the detection information of 2. When the total fuel consumption amount reaches a predetermined value, the output of the electric motor is limited.
A limited-fuel hybrid electric vehicle as described. 8. The fuel consumption amount detecting means calculates a fuel consumption amount for one traveling by subtracting the fuel amount after traveling from the fuel amount before traveling of the automobile, and adds the fuel consumption amount for each traveling. The fuel-use limited hybrid electric vehicle according to claim 7, wherein the hybrid fuel-electric vehicle is configured to calculate the total fuel consumption amount. 9. An abnormality detecting means for detecting an abnormality in a path for transmitting a detection result from the fuel amount detecting means to the fuel consumption detecting means, wherein the control means detects the abnormality by the abnormality detecting means. 9. The fuel use restriction type hybrid electric vehicle according to claim 7, wherein the output of the electric motor is restricted regardless of the detection result of the fuel consumption amount detection means. 10. The number of mileages of a vehicle while using the internal combustion engine is used as the parameter, and the fuel usage state detecting means uses the internal combustion engine after the battery is charged by the external charging means. When the total number of running distances when the internal combustion engine is used reaches a predetermined value from the detection result of the running distance detecting means, the control means is configured as a running distance detecting means for detecting the total number of running distances of the electric motor. 2. The fuel limited hybrid electric vehicle according to claim 1, wherein the hybrid limited electric vehicle is configured to limit output. 11. The traveling distance detecting means detects the total traveling distance when the internal combustion engine is used, based on the use information of the internal combustion engine and the detection information from the wheel speed detecting means mounted on the vehicle. 11. The fuel-use limited hybrid electric vehicle according to claim 10, wherein the hybrid electric vehicle is limited in fuel consumption. 12. An abnormality detecting means for detecting an abnormality in a path for transmitting a detection result from the wheel speed detecting means to the traveling distance detecting means, wherein the control means detects the abnormality by the abnormality detecting means. 12. The fuel use limited hybrid electric vehicle according to claim 11, wherein the hybrid electric vehicle is configured to limit the output of the electric motor regardless of the detection result of the wheel speed detection. 13. The fuel refueling amount and the number of miles traveled while the internal combustion engine is being used are used as the parameters, and the fuel use state detecting means is used after the battery is charged by the external charging means. The fuel refueling amount detecting means for detecting the total refueling amount and the traveling distance detecting means for detecting the total traveling distance when the internal combustion engine is used after the battery is charged by the external charging means, If the total amount of fuel supply reaches a predetermined value from the detection result of the fuel refueling amount detection means, or if the total number of running distances when the internal combustion engine is used reaches a predetermined value from the detection result of the running distance detection means, 2. The fuel use limited hybrid electric vehicle according to claim 1, wherein the hybrid electric vehicle is configured to limit the output of the electric motor. 14. An abnormality detecting means for detecting an abnormality in a path for transmitting a detection result from the fuel detecting means to the fuel refueling amount detecting means, wherein the control means detects the abnormality by the abnormality detecting means. 14. The fuel use restriction type hybrid electric vehicle according to claim 13, wherein the output of the electric motor is restricted regardless of the detection result of the fuel refueling amount detection means. 15. An abnormality detecting means for detecting an abnormality of a route for transmitting a detection result from the wheel speed detecting means to the traveling distance detecting means, wherein the control means detects the abnormality by the abnormality detecting means. 14. The fuel use limited hybrid electric vehicle according to claim 13, wherein the output of the electric motor is limited regardless of the detection result of the wheel speed detection. 16. The operating time of the internal combustion engine is used as the parameter, and the operating time for the fuel use state detecting means to detect the operating time of the internal combustion engine after the battery is charged by the external charging means. It is configured as a detection means, and the control means is configured to limit the output of the electric motor when the operating time of the internal combustion engine reaches a predetermined value from the detection result of the operating time detecting means. A hybrid electric vehicle with limited fuel use according to claim 1. 17. The operating time detecting means is configured to detect the operating time of the internal combustion engine based on use information of the internal combustion engine and a timer. A limited-fuel hybrid electric vehicle as described. 18. The fuel use limiting hybrid according to claim 1, further comprising warning means which is activated when a change in the parameter reaches a predetermined amount from a detection result of the fuel use amount detecting means. Electric car. 19. The predetermined amount of change in the parameter associated with the operation of the warning means is set to be smaller than the predetermined amount of change in the parameter that limits the output of the electric motor. 18. A fuel-use limited hybrid electric vehicle according to item 18. 20. The fuel use limiting hybrid according to claim 1, wherein the control means is configured to limit the output of the electric motor when the change in the parameter reaches the predetermined amount. Electric car. 21. The fuel use limited hybrid electric system according to claim 20, wherein the control means is configured to limit the output of the electric motor by limiting the maximum torque of the electric motor. Automobile. 22. The control means is configured to limit the output of the electric motor by gradually reducing the torque when the rotational speed of the electric motor reaches or exceeds a set value. 20. A fuel-use limited hybrid electric vehicle according to item 20. 23. The fuel-use limited hybrid electric system according to claim 20, wherein the control means is configured to operate the internal combustion engine in an operating region in which fuel consumption and exhaust gas are favorable. Automobile. 24. A battery which can be charged by an external charging means, a drive electric motor which can drive wheels by electric power from the battery, and an internal combustion engine which can directly drive the drive wheels without passing through the electric motor. In a hybrid electric vehicle having a control means for controlling the operation of the electric motor and the internal combustion engine, detecting a change in a parameter according to the amount of fuel used by the internal combustion engine after the battery is charged by the external charging means. The control means is provided with a fuel use state detection means, and is configured to limit the output of the internal combustion engine when the change in the parameter reaches a predetermined value from the detection result of the fuel use amount detection means. A limited-fuel hybrid electric vehicle characterized by the following: