KR20210086799A - Electric vehicle and operating method thereof - Google Patents

Abstract

The present invention relates to an electric vehicle and an operating method thereof. The electric vehicle according to various embodiments comprises: a motor which receives power from a battery and generates rotational torque; an input shaft connected to the motor and an output shaft connected to a wheel; a power disconnecting member, between the input shaft and the output shaft, for controlling power transmission between the input shaft and the output shaft; at least one sensor; and a controller. The controller obtains driving information using the at least one sensor, and determines whether to drive the electric vehicle in a driving mode or a neutral mode based on the driving information. According to the determination of the controller, operations of the motor and the power disconnecting member are controllable. Other embodiments are possible. According to the present invention, the power can be efficiently managed, and an improved driving feeling can be provided to a user.

Description

Electric vehicle and its driving method {ELECTRIC VEHICLE AND OPERATING METHOD THEREOF}

Various embodiments of the present disclosure relate to an electric vehicle and a driving method thereof.

Demand for electric vehicles that use electric power (or both electric power and oil) as a power source is increasing by replacing a car powered by petroleum, which causes pollution, as a power source.

Since such an electric vehicle uses the power stored in the battery as a power source, maximizing the driving distance after charging the battery is becoming the biggest topic in the commercialization of the electric vehicle.

In this regard, in the electric vehicle, methods for charging a battery by recovering energy through regenerative braking for efficient power management are being considered.

For example, when a user steps on a brake pedal or takes their foot off an accelerator pedal while driving, the electric vehicle may use the motor as a generator by generating a regenerative torque in the motor.

In the case of conventional technologies related to electric vehicles, since a drive shaft (eg, an output shaft) connected to a wheel is physically connected to a motor, there is a problem that regenerative braking is inevitably performed even in a situation where regenerative braking should not be performed if necessary. there may be

For example, conventional technologies have a structure in which regenerative braking is necessarily accompanied by a signal from a pedal, and even when the battery is in an overcharged state or the vehicle intends to travel at a constant speed through coasting, the battery is continuously charged according to regenerative braking and the driving speed There may be a problem with the automatic deceleration.

Various embodiments of the present specification are intended to propose an electric vehicle that efficiently manages power to maximize the maximum driving distance of the electric vehicle and provides a driving function that meets a user's driving intention.

An electric vehicle according to various embodiments of the present disclosure for achieving the above or other objects includes: a battery; a motor receiving power from the battery and generating rotational torque; an input shaft connected to the motor and an output shaft connected to the wheel; between the input shaft and the output shaft, a power disconnecting member for controlling power transmission between the input shaft and the output shaft; at least one sensor; and a controller, wherein the controller acquires driving information using the at least one sensor, and determines whether to drive the electric vehicle in a driving mode or a neutral mode based on the driving information, , to control operations of the motor and the power disconnection member according to the determination.

For example, the driving information may include: whether input signals for one or more pedals provided in the electric vehicle are received; information related to the amount of charge of the battery; Alternatively, it may include at least one of information on the inclination angle of the driving road.

For example, when receiving an input signal for at least one of an accelerator pedal and a brake pedal, the controller may determine to drive the electric vehicle in a driving mode.

For example, when the amount of charge of the battery is less than a threshold value, the controller may determine to drive the electric vehicle in a driving mode.

For example, the controller may determine to drive the electric vehicle in the driving mode when the inclination angle of the driving road is greater than 0 based on the information on the inclination angle of the driving road.

For example, when the controller does not receive input signals for the one or more pedals provided in the electric vehicle, the charge amount of the battery is greater than or equal to a threshold value, and the inclination angle of the driving road is zero or less, the electric vehicle is operated You can decide to run in neutral mode.

For example, when determining to drive the electric vehicle in the driving mode, the controller may control the power disconnecting member to transmit power between the input shaft and the output shaft.

For example, when determining to drive the electric vehicle in a neutral mode, the controller may control the power disconnecting member to cut off power transmission between the input shaft and the output shaft.

For example, the electric vehicle may further include an inverter, and the controller may control the rotational torque of the motor using the inverter.

For example, when the driving of the electric vehicle is changed from the driving mode to the neutral mode based on the driving information, the controller stops driving the motor using the inverter and uses the power disconnection member to Power transmission between the input shaft and the output shaft may be cut off.

For example, when the driving of the electric vehicle is changed from the neutral mode to the driving mode based on the driving information, the controller drives the motor using the inverter, the rotation speed of the input shaft and the The rotation speed of the output shaft is compared, and if the difference between the rotation speed of the input shaft and the rotation speed of the output shaft is less than a specified size, the power transmission is interrupted by the power disconnecting member so that power is transmitted between the input shaft and the output shaft can be released

For example, when the difference between the rotation speed of the input shaft and the rotation speed of the output shaft is less than 50 rpm, the controller may release the disconnection of the power transmission by the power disconnection member.

For example, the power disconnection member may include a sleeve disposed to be movable between the input shaft and the output shaft, and the controller, when driven in the driving mode, connects the input shaft and the output shaft using the sleeve When coupled integrally and driven in the neutral mode, the coupling between the input shaft and the output shaft by the sleeve may be released.

According to various embodiments of the present disclosure, a method of driving an electric vehicle, including a battery and a motor, includes: obtaining driving information of the electric vehicle using at least one sensor; determining a driving mode of the electric vehicle based on the driving information; and controlling power transmission between an input shaft connected to the motor and an output shaft connected to a wheel according to the determined driving mode.

For example, the operation of controlling the power transmission may include an operation of selectively transmitting power transmission between the input shaft and the output shaft by using a power disconnecting member provided between the input shaft and the output shaft.

For example, the driving mode includes a driving mode and a neutral mode, and when the driving mode is determined to be a neutral mode, the operation of controlling the power transmission may be performed between the input shaft and the output shaft using the power disconnection member. controlling the power transmission to be cut off; and controlling the power to be transmitted between the input shaft and the output shaft by using the power disconnecting member when the driving mode is determined as the driving mode.

For example, the driving information may include: whether input signals for one or more pedals provided in the electric vehicle are received; information related to the amount of charge of the battery; Alternatively, it may include at least one of information on the inclination angle of the driving road.

For example, the operation of determining the driving mode may include not receiving input signals for the one or more pedals provided in the electric vehicle, the charge amount of the battery is greater than or equal to a threshold value, and the inclination angle of the driving road is 0 or less , determining to drive the driving mode in a neutral mode.

For example, when the driving mode is changed from the driving mode to the neutral mode, the operation of controlling the power transmission may include stopping driving of the motor; and cutting off power transmission between the input shaft and the output shaft by using the power disconnecting member.

For example, when the driving mode is changed from the neutral mode to the driving mode, controlling the power transmission may include: driving the motor; comparing the rotation speed of the input shaft with the rotation speed of the output shaft; and when a difference between the rotation speed of the input shaft and the rotation speed of the output shaft is less than a specified size, releasing the disconnection of the power transmission by the power disconnecting member so that power is transmitted between the input shaft and the output shaft. .

An electric vehicle and a driving method thereof according to various embodiments of the present disclosure may provide an improved driving feeling to a user while efficiently managing power by automatically providing an appropriate driving mode in consideration of a driving situation. This maximizes the maximum drivable distance of the electric vehicle and prevents damage to internal components of the vehicle.

1 is a configuration block diagram of an electric vehicle according to an embodiment of the present disclosure.
2 is a flowchart illustrating a method of driving an electric vehicle according to an embodiment of the present disclosure.
3 is a flowchart illustrating a method of driving an electric vehicle according to an embodiment of the present disclosure.
4A and 4B are schematic views for explaining a driving situation of an electric vehicle according to an exemplary embodiment.
5 is a flowchart illustrating a method of driving an electric vehicle according to an embodiment of the present disclosure.
6 is a flowchart illustrating a method of driving an electric vehicle according to an embodiment of the present disclosure.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted. The suffixes "module" and "part" for the components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have a meaning or role distinct from each other by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number such as first, second, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "comprises" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

1 is a configuration block diagram of an electric vehicle according to an embodiment of the present disclosure.

Referring to FIG. 1 , an electric vehicle 100 according to various embodiments includes a battery 110 , a sensing unit 120 , a motor 130 , an inverter 140 , a memory 150 , a controller 160 , and One or more components of the power disconnect member 170 may be included.

The motor 130 may receive power from the battery 110 to generate rotational torque, or provide power to the battery 110 to charge the battery 110 .

The motor 130 may be controlled to be driven by the inverter 140 . For example, the inverter 140 may control the rotation torque of the motor 130 , such as driving the motor 130 or stopping the driving of the motor 130 .

The sensing unit 120 may include at least one sensor (eg, a pedal sensor 122 , a battery sensor 124 , and an inclination sensor 126 ). For example, the sensing unit 120 may acquire sensing information of at least one of surrounding environment information surrounding the electric vehicle 100 or user input information. For example, the sensing unit 120 includes a pedal sensor 122 (eg, a pressure sensor, a magnetic sensor, an optical sensor, etc.), a battery sensor 124 (eg, a temperature sensor, a current sensor), an inclination sensor ( 126) (eg, an acceleration sensor, a magnetic sensor, a gravity sensor, a gyroscope sensor).

The memory 150 may store data (or information) related to various functions of the electric vehicle 100 . For example, the memory 150 may store data and commands for a control operation of the controller 160 .

The controller 160 may control overall operations of the electric vehicle 100 . For example, the controller 160 processes signals, data, information, etc. input or output through components provided in the electric vehicle 100 , or processes a predetermined function according to a command stored in the memory 150 , or provides a user information can be provided. For example, the controller 160 obtains sensing information (eg, driving information of an electric vehicle) using the sensing unit 120 , or drives (eg, rotates) the motor 130 using the inverter 140 . torque) can be controlled.

The controller 160 may obtain an input signal for one or more pedals (eg, an accelerator pedal and a brake pedal) included in the electric vehicle 100 by using, for example, the pedal sensor 122 . The controller 160 may use the pedal sensor 122 to detect a motion in which the user steps on or off the accelerator pedal and a step on or off the brake pedal while the electric vehicle 100 is driving.

Also, the controller 160 may obtain information related to the current charging state of the battery 110 included in the electric vehicle 100 by using the battery sensor 124 . For example, the controller 160 may obtain information related to the amount of charge of the battery 110 and determine whether the amount of charge of the battery 110 is equal to or greater than a threshold value.

The controller 160 may obtain information on the inclination angle of the road being driven by using the inclination sensor 126 . Through this, the controller 160 may identify whether the road on which the electric vehicle 100 is traveling is an uphill road or a downhill road.

The power disconnection member 170 may control power transmission between an input shaft and an output shaft of the electric vehicle 100 . The electric vehicle according to various embodiments of the present disclosure may include an input shaft connected to the motor 130 and an output shaft (or driving shaft) connected to a wheel (not shown). The power disconnection member 170 may selectively allow power transmission between the input shaft and the output shaft.

For example, when power transmission is cut off between the input shaft and the output shaft by the power disconnection member 170 , the electric vehicle 100 may operate in a neutral mode in which the driving of the motor 130 and the driving of the wheels are independently performed. have.

On the other hand, when the power transmission between the input shaft and the output shaft is not interrupted by the power disconnecting member 170 and the power between the input shaft and the output shaft is connected, the electric vehicle 100 is driven by the wheels according to the driving of the motor 130 . and, depending on the driving of the wheels, the motor 130 may operate as a generator, and may operate in a driving mode.

According to various embodiments, the power disconnection member 170 may include a sleeve (not shown) positioned between the input shaft and the output shaft. For example, the sleeve may be disposed to be movable between the input shaft and the output shaft, and may selectively couple the input shaft and the output shaft.

For example, when the sleeve physically (or mechanically) couples the input shaft and the output shaft, the input shaft and the output shaft may be integrally driven. For example, when the sleeve releases the coupling between the input shaft and the output shaft, the input shaft and the output shaft may be driven separately, and power transmission between the input shaft and the output shaft may be blocked.

According to various embodiments, the power disconnection member 170 may include a configuration (eg, an actuator) for moving the position of the sleeve so that the sleeve performs an operation of coupling or disengaging the input shaft and the output shaft. have. The power disconnection member 170 may selectively transmit power between the input shaft and the output shaft under the control of the controller 160 .

2 is a flowchart illustrating a method of driving an electric vehicle according to an embodiment of the present disclosure.

Referring to FIG. 2 , in operation 210 , the electric vehicle 100 (eg, the controller 160 of FIG. 1 ) according to various embodiments receives at least one sensor (eg, the sensing unit 120 of FIG. 1 ). It can be used to obtain driving information.

For example, the driving information may include whether an input signal for at least one of one or more pedals provided in the electric vehicle 100 , for example, an accelerator pedal or a brake pedal is received, information related to a charge amount of the battery 110 , or a driving road may include at least one of inclination angle information.

In operation 220 , the electric vehicle 100 (eg, the controller 160 of FIG. 1 ) according to various embodiments may determine a driving mode of the electric vehicle 100 based on the driving information obtained in operation 210 . have.

The driving mode of the electric vehicle 100 may include, for example, a driving mode and a neutral mode.

When the electric vehicle 100 operates in the neutral mode, the electric vehicle 100 may be capable of coasting without driving the motor 130 (or the engine). (Example: pushing the electric vehicle 100 from the outside, driving downhill, etc.)

For example, when the electric vehicle 100 is operated in the neutral mode, the controller 160 controls the power disconnection member 170 to prevent power transmission between the input shaft connected to the motor 130 and the output shaft connected to the wheel. can control

When the electric vehicle 100 operates in the driving mode, the electric vehicle 100 may drive the wheels according to the driving of the motor 130 (and/or the engine). Also, when decelerating driving is performed, such as when the brake pedal is pressed or the accelerator pedal is released, the electric vehicle 100 may charge the battery 110 using the motor 130 based on the driving of the wheels.

For example, when the electric vehicle 100 operates in the driving mode, the controller 160 uses the power disconnection member 170 to transmit power between the input shaft connected to the motor 130 and the output shaft connected to the wheel. can be controlled

3 is a flowchart illustrating a method of driving an electric vehicle according to an embodiment of the present disclosure. 4A and 4B are schematic views for explaining a driving situation of an electric vehicle according to an exemplary embodiment.

Referring to FIG. 3 , in operation 310 , the electric vehicle 100 (eg, the controller 160 of FIG. 1 ) according to various embodiments of the present disclosure includes at least one sensor (eg, the sensing unit 120 of FIG. 1 ). can be used to obtain driving information. For example, the driving information may include at least one of information regarding whether an input signal for one or more pedals is received, information related to a charge amount of the battery 110 , or information on a slope angle of a road.

In operation 320, the electric vehicle 100 according to various embodiments may determine whether a pedal input signal is sensed (or received) based on the driving information. For example, when an input signal to the accelerator pedal or an input signal to the brake pedal is received, the electric vehicle 100 may branch to operation 360 and determine to operate the electric vehicle 100 in the driving mode.

For example, when all input signals for pedals (eg, accelerator pedal and brake pedal) are not detected (or received) in operation 320 , in operation 330 , the electric vehicle 100 determines the amount of charge of the battery 110 . can be compared with preset conditions.

For example, in operation 330 , the electric vehicle 100 according to various embodiments may determine whether the amount of charge of the battery 110 is equal to or greater than a threshold value based on the driving information. For example, when it is determined that the charge amount of the battery 110 is equal to or greater than a threshold value, the battery 110 may correspond to a state in which additional charging is unnecessary.

When the amount of charge of the battery 110 is less than a threshold value, the electric vehicle 100 may be determined to be driven in the driving mode in operation 360 . Meanwhile, when the charge amount of the battery 110 is greater than or equal to the threshold value, the electric vehicle 100 may perform the following step in operation 340 .

In operation 440 , the electric vehicle 100 according to various embodiments may determine whether an inclination angle of a road satisfies a specified condition based on the driving information. For example, as shown in FIG. 4A , when the inclination angle (eg, A) of the road on which the electric vehicle 100 is traveling is greater than 0, that is, when the electric vehicle 100 is traveling uphill, the motor 130 ) (or engine) is assumed to be a situation in which driving is required, and in operation 360 , the driving mode of the electric vehicle 100 may be determined as the driving mode.

For example, the electric vehicle 100, as shown in FIG. 4B, when the inclination angle (eg -B) of the road on which the electric vehicle 100 is traveling is less than 0, that is, when driving downhill, The driving mode of the electric vehicle 100 may be determined to be a neutral mode in operation 350 by estimating a situation in which coasting is desired as the vehicle is driven by gravity.

In addition, when the inclination angle of the road being driven is 0, that is, when the electric vehicle 100 is driven on a flat ground, when there is no input signal to the pedal, the electric vehicle 100 assumes a situation in which it intends to perform coasting as it is driven by inertia. , in operation 350 , the driving mode may be determined as a neutral mode.

When the driving mode of the electric vehicle 100 is determined to be the neutral mode, the electric vehicle 100 according to various embodiments may cut off power transmission between the input shaft and the output shaft by using the power disconnection member 170 . That is, in the neutral mode, the electric vehicle 100 may cut off power transmission between the motor 130 and the wheel.

5 is a flowchart illustrating a method of driving an electric vehicle according to an embodiment of the present disclosure. For example, FIG. 5 is a flowchart of a driving method of the electric vehicle 100 when the driving mode of the electric vehicle 100 is changed from the driving mode to the neutral mode.

Referring to FIG. 5 , the electric vehicle 100 according to various embodiments may determine whether to periodically change the driving mode based on driving information while it is operating in the driving mode.

For example, the electric vehicle 100 does not receive an input signal for one or more pedals provided in the electric vehicle 100 based on the driving information, the charge amount of the battery 110 is equal to or greater than a threshold value, and When it is determined that the inclination angle is equal to or less than 0, it may be determined that the driving mode corresponds to a condition for changing the driving mode from the driving mode to the neutral mode.

For example, when it is determined that the electric vehicle 100 is changed to a state for operating in the neutral mode while operating in the driving mode, in operation 510 , the driving of the motor 130 may be stopped.

For example, when the controller 160 of the electric vehicle 100 determines the driving mode from the driving mode to the neutral mode based on driving information, using the inverter 140 to stop the driving of the motor 130 and , it is possible to control the rotation torque of the motor 130 to be 0.

Next, in operation 520 , the controller 160 controls the power transmission between the input shaft and the output shaft to be cut off using the power disconnect member 170 so that the driving between the motor 130 and the wheel can be performed individually. can

6 is a flowchart illustrating a method of driving an electric vehicle according to an embodiment of the present disclosure. For example, FIG. 6 is a flowchart of a driving method when the driving mode of the electric vehicle 100 is changed from the neutral mode to the driving mode.

Referring to FIG. 6 , the electric vehicle 100 according to various embodiments may determine whether to periodically change the driving mode based on driving information while operating in the neutral mode.

For example, while the electric vehicle 100 is operating in the neutral mode, an input signal for any one pedal provided in the electric vehicle 100 is received based on the driving information, or the amount of charge of the battery 110 is received. When the threshold is less than this threshold or when the inclination angle of the driving road is greater than 0, it may be determined that the driving mode corresponds to a condition for changing the driving mode.

For example, if it is determined that the electric vehicle 100 is changed to the driving mode while operating in the neutral mode, the electric vehicle 100 may first drive the motor 130 in operation 610 .

For example, when the controller 160 of the electric vehicle 100 determines the driving mode from the neutral mode to the driving mode based on the driving information, using the inverter 140 to restart the driving of the motor 130 and , it is possible to control to generate the rotational torque of the motor 130 .

In operation 620, the controller 160 may compare the driving speed of the input shaft with the driving speed of the output shaft. For example, the controller 160 may determine whether a difference between the driving speed of the input shaft and the driving speed of the output shaft is smaller than a specified size.

In operation 630 , when the difference between the driving speed of the input shaft and the driving speed of the output shaft is greater than or equal to a specified size, according to the comparison result, the electric vehicle 100 (eg, the controller 160 ), in operation 640 , , it is possible to wait until the speed difference becomes smaller than the specified size or to control the speed of the motor 130 through the inverter 140 .

On the other hand, if the difference between the driving speed of the input shaft and the driving speed of the output shaft is smaller than the specified size, the electric vehicle 100 may release the power cut between the input shaft and the output shaft through the power disconnection member 170 in operation 650 . have. For example, when the condition of operation 630 is satisfied, the controller 160 may control the power disconnection member 170 to transmit power between the input shaft and the output shaft.

According to an embodiment, when the difference in driving speed between the input shaft and the output shaft is less than 50 rpm, the controller 160 may perform the operation 650 .

When the electric vehicle 100 according to various embodiments of the present disclosure is switched from the neutral mode to the driving mode, it is set to release the power cut by the power disconnect member 170 based on the speed difference between the input shaft and the output shaft, When the input shaft and the output shaft are mechanically coupled to each other using the configuration (eg, sleeve) of the power disconnection member 170, it is possible to minimize the impact on the components due to the speed difference between the input shaft and the output shaft. have.

It is apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

The above detailed description should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention may be included in the scope of the present invention.

100: electric vehicle
110: battery
120: sensing unit
130: motor
140: inverter
150: memory
160: controller
170: power disconnection member

Claims (20)

In an electric vehicle,
battery;
a motor receiving power from the battery and generating rotational torque;
an input shaft connected to the motor and an output shaft connected to the wheel;
between the input shaft and the output shaft, a power disconnecting member for controlling power transmission between the input shaft and the output shaft;
at least one sensor; and
including a controller;
The controller is
Acquire driving information using the at least one sensor,
determining whether to drive the electric vehicle in a driving mode or a neutral mode based on the driving information,
and controlling operations of the motor and the power disconnection member according to the determination. The method of claim 1,
The driving information is
whether input signals for one or more pedals provided in the electric vehicle are received;
information related to the amount of charge of the battery; or
An electric vehicle comprising at least one of inclination angle information of a driving road. 3. The method of claim 2,
The controller is
When receiving an input signal for at least one of the accelerator pedal and the brake pedal, it is determined to drive the electric vehicle in a driving mode. 3. The method of claim 2,
The controller is
determining to drive the electric vehicle in a driving mode when the charge amount of the battery is less than a threshold value. 3. The method of claim 2,
The controller is
determining to drive the electric vehicle in a driving mode when the inclination angle of the driving road is greater than 0 based on the information on the inclination angle of the driving road 3. The method of claim 2,
The controller is
When an input signal for the one or more pedals provided in the electric vehicle is not received, the charge amount of the battery is greater than or equal to a threshold value, and the inclination angle of the driving road is greater than or equal to 0, determining to drive the electric vehicle in a neutral mode, electric vehicle. The method of claim 1,
The controller is
and controlling the power disconnecting member so that power is transmitted between the input shaft and the output shaft when it is determined to drive the electric vehicle in the driving mode. The method of claim 1,
The controller is
and controlling the power disconnecting member to cut off power transmission between the input shaft and the output shaft when it is determined to drive the electric vehicle in a neutral mode. The method of claim 1,
further comprising an inverter;
and the controller controls a rotation torque of the motor using the inverter. 10. The method of claim 9,
The controller is
When the driving of the electric vehicle is changed from the driving mode to the neutral mode based on the driving information,
Stop driving the motor using the inverter,
and disconnecting power transmission between the input shaft and the output shaft by using the power disconnecting member. 10. The method of claim 9,
The controller is
When the driving of the electric vehicle is changed from the neutral mode to the driving mode based on the driving information,
driving the motor using the inverter,
Comparing the rotation speed of the input shaft with the rotation speed of the output shaft,
When the difference between the rotation speed of the input shaft and the rotation speed of the output shaft is less than a specified size, disconnection of the power transmission by the power disconnection member is released so that power is transmitted between the input shaft and the output shaft. 12. The method of claim 11,
The controller is
When the difference between the rotation speed of the input shaft and the rotation speed of the output shaft is less than 50 rpm, disconnection of the power transmission by the power disconnection member is released. The method of claim 1,
The power disconnecting member includes a sleeve disposed to be movable between the input shaft and the output shaft,
The controller is
When driven in the driving mode, the input shaft and the output shaft are integrally coupled using the sleeve,
when driven in the neutral mode, releasing the coupling between the input shaft and the output shaft by the sleeve. A method of driving an electric vehicle comprising a battery and a motor, the method comprising:
obtaining driving information of the electric vehicle using at least one sensor;
determining a driving mode of the electric vehicle based on the driving information; and
and controlling power transmission between an input shaft connected to the motor and an output shaft connected to a wheel according to the determined driving mode. 15. The method of claim 14,
The operation of controlling the power transmission is,
and selectively transmitting power transmission between the input shaft and the output shaft by using a power disconnecting member provided between the input shaft and the output shaft. 16. The method of claim 15,
The driving mode includes a driving mode and a neutral mode,
The operation of controlling the power transmission is,
controlling to cut off power transmission between the input shaft and the output shaft by using the power disconnecting member when the driving mode is determined to be a neutral mode; and
and controlling power to be transmitted between the input shaft and the output shaft by using the power disconnecting member when the driving mode is determined to be the driving mode. 17. The method of claim 16,
The driving information is
whether input signals for one or more pedals provided in the electric vehicle are received;
information related to the amount of charge of the battery; or
A method of driving an electric vehicle, comprising at least one of information on an inclination angle of a driving road. 18. The method of claim 17,
The operation of determining the driving mode is
Determining to drive the driving mode in a neutral mode when an input signal for the one or more pedals provided in the electric vehicle is not received, the charge amount of the battery is equal to or greater than a threshold value, and the inclination angle of the driving road is equal to or greater than 0 A method of driving an electric vehicle, comprising: 16. The method of claim 15,
When the driving mode is changed from the driving mode to the neutral mode, the operation of controlling the power transmission includes:
stopping the driving of the motor; and
and disconnecting power transmission between the input shaft and the output shaft by using the power disconnecting member. 16. The method of claim 15,
When the driving mode is changed from the neutral mode to the driving mode, the operation of controlling the power transmission includes:
driving the motor;
comparing the rotation speed of the input shaft with the rotation speed of the output shaft; and
When a difference between the rotation speed of the input shaft and the rotation speed of the output shaft is less than a specified size, releasing the disconnection of the power transmission by the power disconnecting member so that power is transmitted between the input shaft and the output shaft. of the driving method.

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