KR101796121B1 - Method for improving fuel efficiency of vehicle and running performance, and apparatus applied to the same - Google Patents

Abstract

The present invention discloses a method and apparatus for improving fuel economy and driving performance of a vehicle. A method and apparatus for improving fuel economy and driving performance of a vehicle according to the present invention not only improves fuel economy by shutting off fuel at the time of running with impulsivity but also includes a configuration for increasing driving efficiency by stopping driving of the engine itself Lt; / RTI > Therefore, the present invention not only improves the running efficiency of the vehicle, but also improves the fuel efficiency by increasing the fuel cut-off period.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and an apparatus for improving fuel economy and running performance of a vehicle,

The present invention relates to a method and an apparatus for improving fuel economy and running performance of a vehicle, and more particularly, to a method and an apparatus for improving fuel efficiency by cutting off fuel during running, And to a method and an apparatus for improving fuel economy and running performance of a vehicle for increasing efficiency.

Generally, in the engine and the engine control technology, when the engine is driven at a speed higher than a specific engine speed, the fuel supply is cut off and the fuel economy is improved.

However, as shown in FIG. 1, there are bases for estimating specific engine speeds, such as a power steering hydraulic pump, a cooling water pump, an alternator, a brake oil pump, etc., It is for driving the device.

In order to drive such an additional device, even when the engine is in the state of shutting off the fuel, the power transmitted through the wheel (i.e., the wheel) -shaft-transmission must be turned by power.

That is, when the number of revolutions of the engine exceeds the specific number of revolutions of the engine at the time of the incandescent driving (which is referred to as the driving in which the vehicle travels only with the inertia of the vehicle being driven), the fuel supply is cut off by the logic of the engine control controller. Only the interruption has been made and the engine that does not operate as a power source has to be driven to drive the various additional devices.

Therefore, when the running speed exceeds the specific engine speed at the time of running with the driver, the engine operates even when the fuel cut-off is performed, and acts as a resistance element to the running of the vehicle. As a result, There is a structural limit to slow down.

In addition, according to the conventional engine and engine control techniques, if the rotational speed of the engine does not exceed the specific engine speed, the fuel is not shut off but the fuel is sprayed rather than running, There is a disadvantage that the fuel efficiency is lowered.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a driving apparatus for an engine, which does not depend on only the driving force of the engine, And to provide a method for improving fuel economy and running performance of a vehicle and an apparatus for preventing the transmission of rotational force transmitted from a drive shaft and a transmission of such a vehicle to an engine stopped at the time of running with a toughness.

If the number of revolutions of the engine does not exceed the predetermined number of revolutions of the engine for the purpose of interrupting the fuel, the fuel is continuously injected to transmit the power to the additional device through the driving force generated from the engine , And even when the number of revolutions of the engine in the extensively running state does not exceed the predetermined number of revolutions of the engine that has already been set for interrupting the fuel supply, And to provide a method and apparatus for improving running performance.

According to a first aspect of the present invention, there is provided a method for improving the fuel economy and driving performance of a vehicle, comprising the steps of: transmitting power from the engine control controller to the additional device associated with the engine, Comparing the present running speed of the vehicle with a predetermined running speed set in advance to a fuel cutoff condition for the engine; comparing the current running speed with the predetermined running speed A step of switching to a wheel power transmission path for transmitting the rotational force transmitted from the drive shaft and the transmission of the vehicle to the additional device and stopping the operation of the engine and changing the wheel power transmission path To prevent the rotational force transmitted from the engine Characterized in that it comprises the steps:

Preferably, the fuel consumption and the driving performance improving method of the vehicle may be configured such that, when the predetermined engine restart condition is met, the mode is set as the power source for transmitting the rotational force transmitted from the drive shaft and the transmission of the vehicle to the additional device Further comprising the step of restarting the engine and changing the engine power transmission path for transmitting the power source generated from the restarting engine to the additional device.

Preferably, the engine re-start condition is determined by determining whether the number of revolutions of the power source transmitted to the additional device is less than or equal to a specific number of revolutions capable of transmitting an impact to the driver, whether a specific error is detected and the engine is operated in the lim- , Whether or not the traveling speed of the vehicle is equal to or lower than a predetermined reference speed, and whether or not the vehicle is intended to be operated by the accelerator pedal.

Preferably, the fuel consumption and the driving performance improving method of the vehicle further include a wheel for transmitting the rotational force transmitted from the drive shaft and the transmission of the vehicle to the additional device, even when the current running speed is lower than the specified running speed, And switching to a power transmission path and stopping the operation of the engine.

Preferably, the driver is selected via an on / off switch located at the center fascia or via an on / off switch located at the gear bar.

Preferably, the driver's selection is made by selecting an engine-driven gear stage further included in a gear box including a parking gear stage, a reverse gear stage, a neutral gear stage, and a straight gear stage.

In order to attain the above object, an engine control controller according to a second aspect of the present invention is characterized in that power for transmitting to an additional device relating to an engine through a selection of a driver at the time of traveling with an inertia is transmitted to a drive shaft of the vehicle, A comparison section for comparing a current running speed of the vehicle with a predetermined running speed set in advance to a fuel cut-off condition for the engine, and if the current running speed is equal to or greater than the specific running speed A first path change control unit for changing a wheel power transmission path for transmitting the rotational force transmitted from the drive shaft and the transmission of the vehicle to the additional apparatus and stopping the operation of the engine; The transmission torque from the drive shaft and the transmission is prevented from being transmitted to the engine It characterized in that it comprises a control block.

Preferably, when the predetermined engine restart condition is satisfied, the engine control controller releases the mode for setting the rotational force transmitted from the drive shaft and the transmission of the vehicle to the power source, and then restarts the engine The second power path setting unit and the second path change control unit changing an engine power transmission path for transmitting the power source generated from the engine that is restarted to the additional apparatus.

According to a third aspect of the present invention, there is provided a power transmission path changing apparatus comprising: a power source providing unit for transmitting power to an additional apparatus related to an engine; a power source provided to the power source providing unit; A first clutch unit that operates in response to a control signal for transmitting a rotational force transmitted from the drive shaft of the vehicle and the transmission to the additional device when the rotational force is transmitted from the transmission and constitutes a wheel power transmission path; And a second clutch unit that operates in accordance with a control signal for transmitting the driving force by the engine driving to the additional apparatus in the case of the driving force by the engine driving, thereby forming an engine power transmission path.

A fourth aspect of the present invention is a method for improving the fuel economy and driving performance of a vehicle, comprising the steps of: transmitting power from the engine control controller to the additional device, And comparing the current running speed of the vehicle with a predetermined running speed set in advance as a fuel cut-off condition for the engine, and if the current running speed is equal to or greater than the specific running speed Changing the wheel power transmission path to transmit the rotational force transmitted from the drive shaft and the transmission of the vehicle to the additional device and stopping the operation of the engine and changing the wheel power transmission path from the drive shaft and the transmission Blocking the transmitted rotational force from being transmitted to the stopped engine It characterized in that it comprises.

Preferably, the fuel consumption and the driving performance improving method of the vehicle may be configured such that, when the predetermined engine restart condition is met, the mode is set as the power source for transmitting the rotational force transmitted from the drive shaft and the transmission of the vehicle to the additional device Further comprising the step of restarting the engine and changing the engine power transmission path for transmitting the power source generated from the restarting engine to the additional device.

Preferably, the fuel consumption and the driving performance improving method of the vehicle further include a wheel for transmitting the rotational force transmitted from the drive shaft and the transmission of the vehicle to the additional device, even when the current running speed is lower than the specified running speed, And switching to a power transmission path and stopping the operation of the engine.

In order to achieve the above object, an engine control controller according to a fifth aspect of the present invention sets a power to be transmitted to an additional device, which is automatically associated with an engine, when the vehicle is driven in an impulsive manner, as a rotational force transmitted from a drive shaft of the vehicle and a transmission A first power path setting unit, a comparison unit comparing a current running speed of the vehicle with a predetermined running speed set in advance to a fuel cutoff condition for the engine, a comparison unit for comparing the current running speed with the fuel cut- A first path change control unit for changing a wheel power transmission path for transmitting the rotational force transmitted from the drive shaft and the transmission to the additional device and stopping the operation of the engine, Which is provided to stop the transmission of rotational force from the engine It characterized in that it comprises a.

Preferably, when the predetermined engine restart condition is satisfied, the engine control controller releases the mode for setting the rotational force transmitted from the drive shaft and the transmission of the vehicle to the power source, and then restarts the engine The second power path setting unit and the second path change control unit changing an engine power transmission path for transmitting the power source generated from the engine that is restarted to the additional apparatus.

Therefore, in the present invention, the driving of the additional device relating to the engine at the time of traveling with the tachometer is not dependent on only the driving force of the engine, but the rotational force transmitted from the driving shaft and the transmission of the vehicle can be utilized. It is advantageous in that the traveling efficiency of the vehicle can be improved.

In addition, in the present invention, if the rotational speed of the engine does not exceed the predetermined engine speed, which is set for the fuel cutoff, despite the fact that the engine is capable of running, the fuel is continuously injected and the power is transmitted to the additional device through the driving force It is possible to increase the fuel cut-off period by increasing the fuel cut-off period by stopping the engine serving as the resistance element even when the number of revolutions of the engine in the extensively running state does not exceed the predetermined engine speed already set for the fuel cutoff .

1 shows a power transmission structure according to the prior art,
2 is a diagram showing a power transmission structure according to an embodiment of the present invention,
FIG. 3 is a diagram showing the configuration of the engine control controller shown in FIG. 2 as an embodiment;
FIG. 4 is a diagram showing an operation process of the engine control controller shown in FIG. 2 as an embodiment;
FIG. 5 is a diagram showing a switch for allowing a driver to select a power transmission path among the power transmission structures shown in FIG. 2 as an embodiment;
6 is a view showing another embodiment of a switch for allowing a driver to select a power transmission path of the power transmission structure shown in Fig.
7 is a view showing another embodiment of the power transmission structure according to the present invention, and Fig.
FIG. 8 is a flowchart illustrating an operation of the engine controller shown in FIG. 7. Referring to FIG.

Hereinafter, preferred embodiments of the power transmission structure according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a view showing a power transmission structure according to an embodiment of the present invention. 2, the power transmission structure for accomplishing the present invention includes a conventional power transmission structure in which a fuel is combusted to transmit power generated from the engine 200 to the transmission 500 through a clutch It is to improve.

That is, an additional device 300 such as an alternator, various hydraulic pumps (for power steering, brakes, cooling water, etc.) is driven as a crankshaft on the opposite side of the transmission 500 in a normal power transmission structure through a belt, Even when the vehicle is driven by inertia of the vehicle rather than by the power of the engine 200 due to the power transmission structure, the power generated by the wheels of the vehicle is transmitted to the engine 200 through the drive shaft and the transmission 500 There is a limit to be passed.

The reason for such a structural limitation is that, in the case of a vehicle equipped with a normal power transmission structure, the engine 200 is not turned off in any case, which drives various additional devices 300 connected to the crankshaft of the engine 200 For this reason, the above structural limitations also arise.

For example, when the number of revolutions of the engine 200 exceeds the specific engine speed, which is the fuel cutoff condition, the fuel is shut off. However, as the engine 200 continues to be driven, Falls. Also, in this case, if the power between the transmission 500 and the engine 200 is arbitrarily blocked, the engine 200 injects the fuel even under the condition that the engine 200 can cut off the fuel for driving in the idle state.

In this case, when the power transmission structure of the present invention is applied, even if the driving force transmitted from the driving shaft of the vehicle and the transmission 500 is used as the power for driving the various additional devices 300, the engine 200, It is possible to improve the driving efficiency.

In addition, the engine 200 may be operated in spite of the fact that the rotational speed of the engine 200 can not exceed the specific engine speed, which is the fuel cutoff condition, because the conventional limit point is another example.

In this case, when the power transmission structure of the present invention is applied, even if the fuel cut-off condition is not satisfied, the engine 200 can be arbitrarily stopped to use the power generated by the propulsive driving, so that the fuel economy can be improved.

Hereinafter, the power transmission structure of the present invention will be described in more detail.

The power transmission structure of the present invention not only improves the driving efficiency by stopping the driving of the engine 200 serving as the rotational resistance at the time of inertia running, but also improves the running efficiency of the engine 200 even when the engine speed is lower than the specific engine speed, (For example, a hydraulic pump for power steering, a coolant pump, an alternator, and the like) related to the engine 200. The engine control controller 100 performs a series of control for increasing the fuel efficiency by stopping the drive of the engine 200, When the power for operating the additional device 300 in the control signal provided from the engine control controller 100 is the rotational force transmitted from the drive shaft of the vehicle and the transmission 500, When the power for operating the additional apparatus 300 is a driving force by driving the engine 200, the power transmission path for operating the power transmission path of the engine 200 Equip a configuration comprising a changing device (400).

Here, whether or not the power transmission structure of the present invention is applied at the time of traveling with the driver is selected according to the driver's choice.

That is, when the driver inputs a switching input to utilize the power transmission structure of the present invention at the time of traveling with the driver, the engine control controller 100 receives the switch input and performs control for operating the power transmission structure of the present invention do.

The power transmission path changing device 400 that receives and operates the control signal from the engine control controller 100 controls the power transmission path changing device 400 to operate the power transmission path changing device 400 by using the driving force generated from the engine 200 or the driving shaft of the vehicle and the rotational force transmitted from the transmission 500, When the power provided to the power source providing unit 410 is the rotational force transmitted from the drive shaft of the vehicle and the transmission 500, the power source providing unit 410 for transmitting the power received from the additional device 300 A first clutch portion 420 that operates in accordance with a control signal for transmitting the rotational force transmitted from the drive shaft of the vehicle and the transmission 500 to the additional device 300 to form a wheel power transmission path, When the provided power is the driving force by driving the engine 200, operates in accordance with a control signal for transmitting the driving force by driving the engine 200 to the additional device 300, Base includes a second clutch portion 430.

FIG. 3 is a diagram showing the configuration of the engine control controller 100 shown in FIG. 2 as an embodiment. As shown by way of example only in FIG. 3, the engine control controller 100 receives a selection signal for utilization of the power transmission structure of the present invention input by the driver at the time of traveling along the line, and then applies the power transmission structure of the present invention A first power for setting the power to be transmitted to the additional device 300 related to the engine 200 to the driving shaft of the vehicle and the rotational force transmitted from the transmission 500, A comparison unit 130 for comparing a current running speed of the vehicle with a predetermined running speed set in advance to a fuel cutoff condition; a comparison unit 130 for comparing the current running speed of the vehicle with a predetermined running speed, A first path change control unit 140 for changing the wheel power transmission path for transmitting the rotational force transmitted from the auxiliary wheel 300 to the additional device 300 and stopping the operation of the engine 200, And a cut-off control unit 150 for blocking the transmission of the rotational force transmitted from the drive shaft of the vehicle and the transmission 500 through the change of the path to the engine 200 that is stopped and stopped.

The engine control controller 100 controls the drive shaft and the transmission (not shown) of the vehicle if the predetermined condition for restarting the engine 200 is satisfied, in order to utilize the driving force of the engine 200 as a power for transmitting the driving force to the additional device 300. [ A second power path setting unit 160 for restarting the engine 200 after releasing a mode for setting the rotational force transmitted from the engine 500 as a power source for transmitting the rotational force to the additional apparatus 300, And a second path change control unit 170 for changing the power source to the power transmission path of the engine 200 for transmitting the power source to the additional apparatus 300. [

The determination unit 110 determines whether or not the engine 200 is restarted based on the information received after receiving the parameter information related to the operation of the engine 200. When the engine 200 is restarted, The driving force generated from the engine 200 is supplied to the additional device 300 after the setting mode for supplying the power transmitted from the vehicle wheel via the drive shaft and the transmission 500 to the additional device 300 is released And the mode is changed to a mode for setting as a power source for driving.

The restarting condition of the engine 200 means that the engine 200 is operated in a limp-home mode when a specific error is detected and whether or not the number of revolutions of the power source transmitted to the additional device 300 is less than or equal to a specific number of revolutions , Whether or not the running speed of the vehicle is less than or equal to a predetermined reference speed, and whether or not it is intended by the driver to step on the accelerator pedal.

4 is a flowchart illustrating an operation of the engine control controller 100 shown in FIG. As shown by way of example only in Fig. 4, the fuel consumption and driving performance improvement method of the vehicle is based on whether or not the power transmission structure of the present invention is applied by the driver's choice at the time of traveling in a tumbling manner, (S100 and S102). In this case, as shown in FIG.

Here, the mode selection method of the driver is a method of using an on / off switch for selecting a power transmission mode for a gear bar as shown in an embodiment of FIG. 5, There is a method of selecting a gear stage of the engine 200 that is further provided in a gear box including a reverse gear stage, a neutral gear stage, and a straight gear stage.

In addition, it is possible to select the power transmission mode via the on / off switch located at the center fascia.

Thereafter, if it is selected to apply the power transmission structure of the present invention in step S102, the power for transmitting to the additional device 300 related to the engine 200 through the selection of the driver at the time of traveling with the driver is transmitted to the drive shaft of the vehicle, (S104). In step S104, the ECU 100 determines whether the current running speed of the vehicle is equal to the predetermined running speed.

If it is determined in step S104 that the current driving speed of the vehicle is equal to or greater than the specific driving speed corresponding to the fuel cutoff condition, the driving force of the vehicle and the wheel power transmission path for transmitting the rotational force transmitted from the transmission 500 to the additional device 300 And the operation of the engine 200 is stopped (S106).

In addition, by performing the change to the wheel power transmission path executed in the step S106, the function of interrupting the transmission of the driving force transmitted from the drive shaft of the vehicle and the transmission 500 to the engine 200 which is stopped and stopped is executed S108).

As a result of the comparison in the step S104, even if the current running speed of the vehicle is less than the specific running speed corresponding to the fuel cutoff condition, the above-mentioned steps S106 and S108 are executed in order to utilize the running of the vehicle.

Thereafter, when the predetermined condition for restarting the engine 200 is satisfied, the engine 200 is released from the drive mode of the vehicle and the mode set as the power source for transmitting the rotational force transmitted from the transmission 500 to the additional device 300, (S112), and restarts the operation to change the engine 200 power transmission path for transmitting the power source generated from the engine 200 to the additional device 300 (S114).

It is also possible that the power source generated from the engine 200 is not only transmitted to the additional device 300 but also transmitted to the drive shaft and the transmission 500 based on the control logic of the transmission 500 as the case may be.

When the running of the inertia is ended, the above-mentioned processes are also ended (S116).

7 is a view showing another embodiment of the power transmission structure according to the present invention. As shown only by way of example in Fig. 7, another example of the power transmission structure is not a method of applying the power transmission structure of the present invention by the driver's choice, but automatically applying the power transmission structure of the present invention Method.

The other power transmission structure of the present invention not only improves the driving efficiency by stopping the driving of the engine which acts as the rotational resistance automatically when the vehicle is driven with the inertia, but also drives the engine even when the engine speed is lower than the specific engine speed, (For example, a hydraulic pump for power steering, a cooling water pump, and an alternator) related to the engine 700, an engine control unit 600 for executing a series of control for stopping the engine 700 In the case where the power for operating the additional device 800 in the control signal provided from the controller 600 is the rotational force transmitted from the drive shaft of the vehicle and the transmission 900-1, In the case where the power for operating the apparatus 900-1 is a driving force by engine driving, the power transmission for operating the engine power transmission path And a path changing device 900. [

The specific configuration of the power transmission path changing device 900 is the same as the configuration of the power transmission path changing device 400 described above.

Specifically, since the engine control controller 600 applied to this system is a one-way running, the power for transmitting to the additional device 800 related to the engine 700 is set to be a rotational force transmitted from the drive shaft and the transmission of the vehicle. A comparison unit for comparing a current running speed of the vehicle with a predetermined running speed that is preset in accordance with the fuel cutoff condition, and a comparison unit for comparing the rotational force transmitted from the drive shaft of the vehicle and the transmission if the current running speed is not less than a specific running speed, 800), and changes the wheel power transmission path to change the wheel power transmission path to stop the operation of the engine (700) by changing the wheel power transmission path to the wheel power transmission path And a blocking control unit for blocking transmission of the signal to the control unit 700.

Further, when the engine 700 is used as a power for transmitting the driving force of the engine 700 to the additional device 800, the engine control controller 600 can be operated from the driving shaft of the vehicle and the transmission The second power path setting unit for restarting the engine 700 after releasing the mode for setting the transmitted rotational force to the power source for transmitting to the additional device 800, and the power source generated from the engine 700 to be restarted, To the power transmission path of the engine 700 for transmitting the power transmission path to the power transmission path.

8 is a flowchart illustrating an operation of the engine control controller 600 shown in FIG. 7. Referring to FIG. As shown by way of example only in FIG. 8, the method of improving fuel economy and running performance of a vehicle is configured to automatically set the application of the power transmission structure of the present invention to a running state such as running downhill (S200) .

Thereafter, the current running speed of the vehicle is compared with the specific running speed that is already set in the fuel cut-off condition (S202).

If it is determined in step S202 that the current running speed of the vehicle is equal to or greater than the specific running speed corresponding to the fuel cutoff condition, control is performed on the clutch by the wheel power transmission path for transmitting the rotational force transmitted from the drive shaft and the transmission to the additional device And stops the operation of the engine 700 (S204).

In addition, the function of blocking the transmission of the rotational force transmitted from the drive shaft of the vehicle and the transmission to the stopped engine 700 is executed by executing the change to the wheel power transmission path executed in step S204 (S206).

As a result of the comparison in the step S202, even if the current running speed of the vehicle is less than the specific running speed corresponding to the fuel cut-off condition, the above-mentioned S204 and S206 are executed in order to utilize the running of the vehicle.

Thereafter, when the predetermined condition for restarting the engine 700 is satisfied, the engine 700 is restarted after releasing the mode set as the power source for transmitting the rotational force transmitted from the drive shaft and the transmission of the vehicle to the additional device 800 (S210), and restarts the operation to change the engine 700 power transmission path for transmitting the power source generated from the engine 700 to the additional device 800 (S212).

It is also possible that the power source generated from the engine 700 is not only transmitted to the additional device 800 but also transmitted to the drive shaft and the transmission in accordance with the transmission control logic as the case may be.

When the inertia travel is completed, the above-mentioned processes are also concluded (S214).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

In addition, the present invention not only improves the fuel economy by blocking the fuel during running, but also increases the driving efficiency by stopping the driving of the engine itself acting as the rotational resistance in this case, so that the possibility of commercialization or sales is sufficient This is an invention that is industrially applicable because it is practically possible to carry out clearly.

100, 600: engine control controller 110:
120: First power path setting unit 130:
140: First path change control section 150:
160: second power path setting unit 170: second path change control unit
200, 700: engine 300, 800: additional device
400, 900: Power transmission path changing device 410, 910:
420, 920: first clutch portion 430, 930: second clutch portion
500, 900-1: Transmission

Claims (14)

Setting the power for transferring from the engine control controller to the additional device associated with the engine through the selection of the driver at the time of traveling with the throttle to a rotational force transmitted from the drive shaft of the vehicle and the transmission;
Comparing a current running speed of the vehicle with a predetermined running speed set in advance to a fuel cutoff condition for the engine;
And a power transmission path changing device that is disposed inside the engine so as to operate by receiving a control signal from the engine control controller and adjacent to the additional device if the current running speed is equal to or greater than the specific running speed, To a wheel power transmission path for transmitting the rotational force transmitted from the drive shaft and the transmission to the additional device, and stopping the operation of the engine; And
And blocking transmission of a rotational force transmitted from a drive shaft and a transmission of the vehicle to an engine stopped and stopped by changing the wheel power transmission path,
Wherein the step of stopping the operation of the engine is applied even when the current running speed is lower than the specific running speed in the result of the comparison. The method according to claim 1,
The method for improving the fuel economy and driving performance of a vehicle includes releasing a mode for setting a rotational force transmitted from a driving shaft and a transmission of the vehicle to a power source when the predetermined engine restart condition is satisfied, ; And
And changing an engine power transmission path for transmitting a power source generated from an engine restarting to the additional device. 3. The method of claim 2,
The engine re-start condition may include at least one of the following: whether the number of revolutions of the power source transmitted to the additional device is less than or equal to a specific number of revolutions capable of transmitting an impact to the driver; whether a specific error is detected to operate the engine in a lim- Whether or not the driving speed is equal to or less than a predetermined reference speed, and whether or not the driving speed is intended by the driver on the accelerator pedal. delete 3. The method according to claim 1 or 2,
Wherein the driver is selected through an on / off switch located on the center fascia or via an on / off switch located on the gear bar. 3. The method according to claim 1 or 2,
Wherein the selection of the driver comprises selecting an engine-driven gear stage further included in a gear box including a parking gear stage, a reverse gear stage, a neutral gear stage, and a straight gear stage. Way. A first power path setting unit for setting the power for transmitting to the additional device related to the engine through the selection of the driver at the time of the passive driving to the rotational force transmitted from the drive shaft of the vehicle and the transmission;
A comparison unit comparing a current running speed of the vehicle with a predetermined running speed set in advance to a fuel cut-off condition for the engine;
And a power transmission path changing device that is disposed inside the engine so as to operate by receiving a control signal from the engine control controller and adjacent to the additional device if the current running speed is equal to or greater than the specific running speed, A first path change control unit changing a wheel power transmission path for transmitting the rotational force transmitted from the drive shaft and the transmission to the additional apparatus, and stopping the operation of the engine; And
And a blocking control unit for blocking transmission of the rotational force transmitted from the drive shaft and the transmission of the vehicle to the engine stopped and stopped by changing the wheel power transmission path,
Wherein the first path change control section is adapted to be applied even when the current running speed is lower than the specified running speed in the comparison result. 8. The method of claim 7,
Wherein the engine control controller releases the mode for setting the rotational force transmitted from the drive shaft of the vehicle and the transmission to the power source when the predetermined engine restart condition is satisfied, Setting section; And
And an engine power transmission path for transmitting a power source generated from an engine that is restarted to the additional device. A power source providing unit for transmitting power to an additional apparatus associated with the engine;
And a control unit that operates in accordance with a control signal for transmitting the rotational force transmitted from the drive shaft and the transmission to the additional device when the power provided to the power source providing unit is a rotational force transmitted from the drive shaft and the transmission of the vehicle, A first clutch portion; And
And a second clutch part that operates according to a control signal for transmitting the driving force by the engine driving to the additional device when the power provided to the power source providing part is a driving force by engine driving, ,
Wherein the first clutch portion operates in accordance with the control signal to constitute a wheel power transmission path when the current running speed of the vehicle is less than a predetermined running speed set in advance to a fuel cutoff condition for the engine, And the first and second clutch portions are arranged in a line between the first and second clutch portions.
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