KR20220118124A - Vehicle, and method for controlling the same - Google Patents

Abstract

The present invention relates to a vehicle determining whether a charging cable is connected and a method for providing the vehicle. According to the present invention, whether or not a charging port is connected to the charging cable based on a signal received through at least one pin among a plurality of pins of the charging cable connected to the charging port. In addition, when it is determined that the charging cable is connected to the charging port, a shifting apparatus is controlled to prevent driving of the vehicle. In addition, when it is determined that the charging cable is separated from the charging port, the shifting apparatus is controlled so that driving of the vehicle is permitted. The vehicle of the present invention comprises: a transmission device; the charging port; and a control unit.

Description

Vehicle and method for controlling the same

The present invention relates to a vehicle for recognizing a connection state with a connector provided in a charging cable and a control method thereof.

Vehicles generate mechanical power by burning petroleum fuels such as gasoline and diesel, and use this mechanical power to drive internal combustion engine vehicles (general engine vehicles), and electricity to reduce fuel economy and harmful gas emissions. Including eco-friendly vehicles that drive.

Here, an eco-friendly vehicle includes a battery and a motor, which are rechargeable power supplies, rotates the motor with electricity accumulated in the battery, and drives the wheels using the rotation of the motor, and includes an engine, a battery, and a motor, and includes an engine, a battery and a motor. It includes a hybrid vehicle that drives by controlling power and electric power of a motor.

Here, the hybrid vehicle includes a plug-in hybrid vehicle in which a plug capable of being connected to external electricity is provided and a battery can be charged when connected to external electricity.

Such an eco-friendly vehicle receives external commercial power through a charging cable and charges a battery using the supplied power.

That is, when the plug of the charging cable is connected from the outlet of the commercial power and the connector of the charging cable is connected to the charging port of the vehicle, the vehicle receives commercial power through the charging cable.

One aspect is a vehicle for determining whether the charging cable is disconnected from the vehicle after charging is complete, making driving impossible when it is determined that the charging cable is connected to the vehicle, and enabling driving when it is determined that the charging cable is disconnected from the vehicle control method is provided.

A vehicle according to an aspect includes a transmission device; a charging port to which a plurality of pins provided on the charging cable are connected; and determining whether the charging port and the charging cable are connected based on a signal received through at least one of the plurality of pins, and controlling the transmission to prevent driving when it is determined that the charging cable is connected to the charging port, When it is determined that the charging cable is disconnected from the charging port, a control unit for controlling the transmission to allow driving is included.

The transmission device of a vehicle according to one aspect includes a shift lever for changing a position to a plurality of gear stages, and when the control unit determines that the charging cable is connected to the charging port, the gear stage of the shift lever is set to the parking gear to prevent driving. Control the shift lever so that it is fixed to the stage.

When it is determined that the charging cable is disconnected from the charging port, the control unit of the vehicle according to one aspect may shift the gear stage of the shift lever to change to any one of a parking gear stage, a forward gear stage, a reverse gear stage, and a neutral gear stage to allow driving. control the lever.

The control unit of the vehicle according to one aspect limits the starting when it is determined that the charging cable is connected to the charging port.

The vehicle according to one aspect further includes at least one of an engine and a motor for applying a driving force to the wheel, and the controller restricts the operation of at least one of the engine and the motor when it is determined that the charging cable is connected to the charging port.

The control unit of the vehicle according to one aspect, when a signal is received from a proximity detection pin among a plurality of pins, determines whether the proximity detection pin is in an open state based on the received signal of the proximity detection pin, and determines that the proximity detection pin is in an open state If it is, it is determined whether the charging cable is connected to the charging port based on the signal received from the control pilot pin among the plurality of pins.

When the voltage value corresponding to the signal received from the control pilot pin is not a preset voltage value, the control unit of the vehicle according to one aspect determines that the charging cable is connected to the charging port, and responds to the signal received from the control pilot pin If the voltage value is a preset voltage value, it is determined that the charging cable is disconnected from the charging port.

According to one aspect, the preset voltage value of the vehicle is a voltage value of approximately 0V.

When it is determined that the proximity detection pin is not in an open state, the control unit of the vehicle according to one aspect maintains the charge of the battery, the proximity detection pin is in an open state, and a voltage value corresponding to a signal received from the control pilot pin is preset value to stop charging the battery.

When it is determined that the charging cable is connected to the charging port, the control unit of the vehicle according to one aspect periodically determines whether the charging cable is connected.

A vehicle control method according to another aspect determines whether a charging port and a charging cable are connected based on a signal received through at least one pin among a plurality of pins of a charging cable connected to the charging port, and the charging cable is connected to the charging port. When it is determined that this is connected, the transmission is controlled to prevent the vehicle from running, and when it is determined that the charging cable is disconnected from the charging port, the transmission is controlled to allow the vehicle to travel.

Controlling the shifting device to prevent the vehicle from running is to set the gear stage of the shift lever to the parking gear stage so that the change of the gear stage of the shift lever is limited to any one of a parking gear stage, a forward gear stage, a reverse gear stage, and a neutral gear stage. including fixing to

Controlling the shift device to allow the vehicle to travel includes controlling the shift lever to change a gear stage of the shift lever to any one of a parking gear stage, a forward gear stage, a reverse gear stage, and a neutral gear stage.

The method of controlling a vehicle according to another aspect further includes controlling at least one of limiting an operation of at least one of an engine and a motor and limiting a start when it is determined that the charging cable is connected to the charging port.

To determine whether the charging port and the charging cable are connected, when a signal is received from a proximity detection pin among a plurality of pins, it is determined whether the proximity detection pin is in an open state based on the received signal of the proximity detection pin, and the proximity detection pin is If the open state is determined, the voltage value corresponding to the signal received from the control pilot pin among the plurality of pins is compared with a preset voltage value, and if the voltage value corresponding to the signal received from the control pilot pin is not the preset voltage value, and determining that the charging cable is connected to the charging port, and determining that the charging cable is disconnected from the charging port when the voltage value corresponding to the signal received from the control pilot pin is a preset voltage value.

In a vehicle control method according to another aspect, when it is determined that the proximity detection pin is not in an open state, the battery is maintained, the proximity detection pin is in an open state, and a voltage value corresponding to a signal received from the control pilot pin is preset The voltage value further includes stopping charging of the battery.

The present invention can improve the accuracy of determining the connection and disconnection between the charging cable and the vehicle by determining the state of connection and disconnection between the charging cable and the vehicle based on the signal of the proximity detection pin of the charging cable and the signal of the control pilot pin. have.

The present invention can improve the safety of the vehicle by controlling the transmission so that the vehicle cannot be driven when the charging cable and the vehicle are connected. That is, by making it impossible to drive the vehicle, accidents of the vehicle and the user can be reduced, and damage to the vehicle and the charging cable can be prevented.

The present invention can improve the merchantability of an eco-friendly vehicle, further increase user satisfaction, and secure product competitiveness.

1 is an exemplary view of the exterior of a vehicle according to an embodiment.
FIG. 2 is an exemplary view of a charging unit provided in the vehicle illustrated in FIG. 1 .
3 is an exemplary view of a charging cable connected to a vehicle according to an embodiment.
4 is a configuration diagram of vehicle control according to an exemplary embodiment.
5 is a control configuration diagram of a charging cable connected to a vehicle according to an embodiment.
6 is a control flowchart of a vehicle according to an exemplary embodiment.
7 is a signal graph of a control pilot pin and a proximity detection pin for recognizing the connection and separation of a vehicle and a charging cable according to an embodiment.

Like reference numerals refer to like elements throughout. This specification does not describe all elements of the embodiments, and general content in the technical field to which the present invention pertains or content that overlaps among the embodiments is omitted. The term 'part, member, module, device' used in this specification may be implemented in software or hardware, and according to embodiments, a plurality of 'part, member, module, device' may be implemented as one component or one It is also possible that a 'part, member, module, device' of

Throughout the specification, when a part is "connected" with another part, this includes not only direct connection but also indirect connection, and indirect connection includes connection through a wireless communication network. do.

Also, when a part "includes" a component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

Terms such as first, second, etc. are used to distinguish one component from another, and the component is not limited by the above-mentioned terms.

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

In each step, the identification code is used for convenience of description, and the identification code does not describe the order of each step, and each step may be performed differently from the specified order unless the specific order is clearly stated in the context. have.

Hereinafter, the working principle and embodiments of the present invention will be described with reference to the accompanying drawings.

1 is an exemplary view of the exterior of a vehicle according to an embodiment, FIG. 2 is an exemplary view of a charging unit provided in the vehicle shown in FIG. 1 , and FIG. 3 is an exemplary view of a charging cable connected to the vehicle according to the exemplary embodiment.

The vehicle 1 according to the embodiment is an eco-friendly vehicle that runs using a battery and a motor, and may include an electric vehicle or a plug-in hybrid electric vehicle (PHEV).

The vehicle 1 includes a body 100 having an interior and an exterior, and a chassis in which mechanical devices necessary for driving are installed as the remaining parts except for the vehicle body.

As shown in FIG. 1 , the exterior 110 of the vehicle body 100 includes a front panel 111 , a bonnet 112 , a roof panel 113 , a rear panel 114 , front and rear left and right doors 115 , front and rear left and right sides. It includes a window glass 116 that can be opened and closed on the door 115 of the.

In addition, the exterior of the vehicle body includes a pillar provided at the boundary between the window glasses 116 of the front, rear, left and right doors 115, a side mirror that provides the driver with a view of the rear of the vehicle 1, and information about the surroundings while observing the front view. It includes external lamps that make it easy to see and serve the function of signaling and communication to other vehicles and pedestrians.

The chassis of the vehicle is a frame that supports the vehicle body, and the chassis includes wheels arranged on the front, rear, left, and right sides, a power unit for applying driving force to the front, rear, left, and right wheels, a steering system, a braking system for applying braking force to the front, rear, left, and right wheels; A suspension device and a transmission device may be provided.

The power unit may include a power generating unit and a power transmitting unit.

In the case of an electric vehicle, the power generating device may include a battery and a motor.

In the case of a hybrid vehicle, the power generating device may include a battery, a motor, an engine, a fuel device, and a cooling and refueling device.

The battery may be a main battery that generates a high-voltage current to supply driving power to the vehicle.

The motor converts the electrical energy of the battery into mechanical energy for operating various devices provided in the vehicle.

In the case of a hybrid vehicle, when the start button is turned on, the vehicle operates the motor and drives the engine through the operation of the motor. In addition, the hybrid vehicle may be a plug-in hybrid vehicle that charges the battery using external power.

In the case of an electric vehicle, when the start button (or boot button) is turned on, the vehicle supplies the maximum current to the motor to generate the maximum torque.

The power transmission device may include at least one of a clutch, a transmission, a final reduction device, a differential device, and an axle.

The vehicle may further include a charging unit provided on the exterior of the vehicle body, to which a charging cable is connected, and receiving power for charging the battery.

The charging unit may include a fast charging unit 117 for rapidly charging the battery, and a slow charging unit 118 for charging the battery at a slow rate that is slower than the fast charging rate.

A cable for fast charging may be connected to the fast charging unit 117 , and a cable for slow charging may be connected to the slow charging unit 118 .

In addition, it is also possible that the fast charging unit for fast charging and the slow charging unit for slow charging, which has a slower charging speed than the fast charging, are provided at the same position on the exterior of the vehicle. That is, the vehicle may include only one charging unit integrally provided on the exterior of the vehicle. In this case, one charging unit may be provided with a fast charging port and a slow charging port.

This embodiment describes a vehicle having the charging unit 118 for charging the battery slowly.

The vehicle further includes a charging cap 118a of the charging unit 118 .

As shown in FIG. 2 , the charging unit 118 has an accommodating space, the receiving unit 118b opened and closed by the charging cap 118a , and the connector of the charging cable 2 disposed in the receiving unit 118b It includes a charging inlet (118c) that is inserted into the connection. In addition, the charging port may be provided in the form of an outlet.

The charging port 118c may be an outlet into which a 5-pin connector is inserted and connected, or an outlet into which a 7-pin connector is inserted and connected.

In this embodiment, a charging port to which a 5-pin connector is inserted and connected will be described as an example.

As shown in FIG. 3 , the charging cable 2 is a cable that transmits single-phase AC power, and a live pin (L1), a neutral pin (L2/N), a ground pin (GND), and a proximity detection pin (Proximity Detection) , PD), a connector 210 in which a control pilot pin (Control Pilot, CP), which is a control confirmation pin, is disposed, and a plug 220 connected to an outlet of an AC commercial power source.

The voltage applied to the control pilot pin CP may be different depending on the connection state of the charging cable and the communication state. The voltage applied to the control pilot pin CP may be different depending on a connection state with the vehicle, a charging mode, and a communication mode.

For example, the voltage applied to the control pilot pin CP may be a first voltage of approximately 9V when a confirmation signal for a communicable state and a communication start signal are received, and a change command to the update mode may be applied. When the signal is received, a voltage of approximately 1V, which is a second voltage, may be applied. Here, the first voltage when a confirmation signal for the communicable state or the connection state is received and the second voltage when the change command signal to the update mode is received are preset values.

Also, during communication, approximately a third voltage may be applied to the control pilot pin CP. Here, the third voltage is a voltage that enables communication between the charging cable 2 and the communication device 3 , and may be a preset voltage. For example, the third voltage may be approximately 9V.

The charging cable 2 includes a control box (In Cable Control Box: ICCB, 230) that allows charging to be performed between the vehicle 1 and commercial power, a connector 210, a plug 220, and a control box 230. and a connecting cable member 240 .

The control box 230 may include a case 231 forming the exterior of the control box 230, and a second display unit 232 displaying charging information such as charging preparation, power failure, charging, and charging completion. have.

A circuit board for controlling vehicle charging and communication with the vehicle may be provided inside the case 231 of the control box 230 .

The case 231 of the control box 230 may be formed in a sealed state, and may be provided integrally.

The control box 230 may further include a second input unit (not shown) for receiving charging commands such as charging start and charging stop. Such a second input unit may be provided in the connector 210 . Here, the second input unit is a touch panel and may be provided integrally with the second display unit 222 .

The cable member 240 includes a first cable member 241 connecting the connector 210 and the control box 230 and a second cable member 242 connecting the plug 220 and the control box 230 . can do.

The charging cable 2 may be a cable for charging in the home.

In addition, when 7 pins are provided in the connector of the charging cable, this connector is a three-phase AC connector and may further include L2 and L3 pins.

The interaction between the vehicle 1 and the charging cable 2 is briefly described.

The charging cable 2 may be connected to the commercial power source and the vehicle 1 , and in this case, the power of the commercial power source may be transmitted to the vehicle 1 .

The control box 230 of the charging cable 2 determines whether the connector 210 of the charging cable is connected to the charging port 118c of the vehicle based on the signal of the proximity detection pin PD.

The vehicle also determines whether the connector 210 of the charging cable is connected to the charging port 118c of the vehicle based on the signal of the proximity detection pin (PD) of the charging cable, and the connector 210 of the charging cable is connected to the charging port ( 118c), the vehicle 1 may be controlled so that the vehicle 1 cannot be driven. In addition, the vehicle 1 may receive connection information from the control box 230 of the charging cable 2 .

The charging cable 2 transmits power received through the live pin L1 , the neutral pin L2/N, and the ground pin GND of the connector 210 to the vehicle 1 .

The vehicle 1 converts the received AC power of 220V into DC and charges the battery with the converted DC power.

The control box 230 of the charging cable performs a communication mode in which the charging state of the battery of the vehicle 1 is monitored based on the signal of the control pilot pin CP. That is, the control box 230 of the charging cable receives charging information of the vehicle's battery during charging.

The vehicle 1 also transmits the charging information of the vehicle's battery to the control box of the charging cable 2 by performing communication with the control box 230 of the charging cable 2, and the charging information of the vehicle's battery is provided inside the vehicle. It is also possible to display through the first display unit 160 .

In addition, when the charging cable 2 is connected between the vehicle 1 and a charger such as a charging station, it is also possible to perform a communication mode for mutual monitoring between the vehicle 1 and the charger.

4 is a configuration diagram of vehicle control according to an exemplary embodiment.

The vehicle includes a charge monitoring unit 118 , a battery 120 , a battery management unit 130 , a first control unit 140 , a motor 150 , a first display unit 160 , and a transmission unit 170 .

'First' is written on the component of the vehicle 1 having the same name as the component of the charging cable 2 and 'second' is written on the component of the charging cable 2 .

The charging monitoring unit 118 may include a power converter (not shown) that converts alternating current (AC) power into direct current (DC) power of the battery. That is, the charging monitoring unit 118 converts the 220V AC power received by the vehicle 1 into DC using the power converter and charges the battery 120 using the converted DC power.

The charging monitoring unit 118 receives the signal of the proximity detection pin (PD) and the signal of the control pilot pin (CP) provided in the connector 210 of the charging cable (2), and receives the signal of the received proximity detection pin (PD) and It is also possible to transmit a signal of the control pilot pin CP to the first controller 140 .

The battery 120 may be a rechargeable battery that performs charging and discharging. The battery 120 applies the charged power to the motor 150 . The battery 120 may be charged using power applied from the motor 150 that performs a power generation function in the regenerative braking mode of the vehicle.

Here, the motor 150 applies a driving force to the wheels during acceleration or constant speed driving of the vehicle, and performs a power generation function during deceleration or stationary driving of the vehicle.

In the regenerative braking mode and the motor 150 performing the power generation function, charging is performed using a current generated by the back electromotive force generated by the motor 150 .

The battery manager 130 monitors a state of charge (SoC) of the battery 120 to prevent overcharging and overdischarging of the battery while managing charging and discharging of the battery.

The battery manager 130 transmits the state of charge information on the state of charge of the monitored battery 120 to the first controller 140 . Here, the charge state information of the battery 120 may include information on the charge amount of the battery.

The battery management unit 130 may include a charging state detection unit (not shown) for detecting the charging state of the battery 120 .

More specifically, the battery manager 130 detects information on at least one of current, voltage, and temperature of the battery 120 using a charge state detection unit (not shown), and detects information on at least one of current, voltage, and temperature of the battery. It determines the state of charge (SOC) of the battery based on the information on , and manages the battery 120 so that the battery 120 is charged and discharged based on the determined state of charge of the battery.

Here, the state of charge detection unit (not shown) includes a current detection unit that detects the current of the battery 120 , and a voltage detection unit that detects a voltage at the output terminal of the battery 120 and a temperature detection unit that detects the temperature of the battery 120 . Optionally, it may further include.

The battery manager 130 monitors the state of charge of the battery based on the detected current of the battery 120 . The battery manager 130 may monitor the state of charge of the battery based on the detected current and voltage of the battery 120 . The battery manager 130 may monitor the state of charge (SOC) of the battery based on the current, voltage, and temperature of each cell of the battery 120 .

The first controller 140 receives the charging information of the vehicle's battery from the battery management unit 130 and displays the first display unit 160 to display the charging information of the vehicle's battery through the first display unit 160 provided inside the vehicle. It is also possible to control.

The first control unit 140 may transmit the charging information of the battery 120 received when performing the charging mode to the control box of the charging cable 2 , and display the charging information of the battery 120 being charged. It is also possible to control the display unit 160 .

The first control unit 140 receives the signal of the control pilot pin (CP) provided in the connector 210 of the charging cable (2), and based on the received signal of the control pilot pin (CP), the charging cable (2) It can be determined whether the connector 210 of the vehicle is connected to the charging port 118c of the vehicle.

The first control unit 140 receives a signal of the proximity detection pin (PD) provided in the connector 210 of the charging cable (2), and based on the received signal of the proximity detection pin (PD), the connector 210 of the charging cable It may be determined whether is connected to the charging port 118c of the vehicle.

More specifically, the first control unit 140 performs charging by connecting the connector 210 of the charging cable to the charging port 118c of the vehicle, while the connector 210 of the charging cable is connected to the charging port 118c of the vehicle. ) to determine whether it is separated from

The first control unit 140 performs charging by connecting the connector 210 of the charging cable to the charging port 118c of the vehicle, and the charging received from the first input unit (not shown) or the battery management unit 130 of the vehicle. It is also possible to determine whether the connector 210 of the cable is disconnected from the charging port 118c of the vehicle based on the completion command.

The first control unit 140 determines whether the received signal of the proximity detection pin PD is an open state signal, and when it is determined that the received signal of the proximity detection pin PD is a signal of an OPEN state, proximity detection When it is determined that the pin PD is disconnected, and the proximity detection pin PD is determined to be disconnected, it is determined whether the received signal of the control pilot pin CP corresponds to a preset voltage value.

When it is determined that the proximity sensing pin PD is in a disconnected state, the first controller 140 may determine that the charging is completed. On the other hand, when it is determined that the proximity detection pin PD is not in a disconnected state, the first controller 140 may determine that the battery of the vehicle is in a charging state.

When the first control unit 140 determines that the signal of the control pilot pin CP received while the proximity detection pin PD is in a disconnected state is not a signal for a preset voltage value, the connector 210 of the charging cable is disconnected from the vehicle. When it is determined that it is connected to the charging port 118c of judged to be connected.

The preset voltage value may be approximately 0V.

When it is determined that the connector 210 of the charging cable is connected to the charging port 118c of the vehicle, the first control unit 140 may control the vehicle so that the vehicle cannot be driven, and display the first connection information of the charging cable. It is also possible to control the display unit 160 .

When controlling the vehicle so that driving of the vehicle is impossible, the first control unit 140 may limit and control the operation change of the gear stage by the shift lever 171 , and display the information that the operation impossible of the shift lever 171 is displayed. The first display unit 160 may be controlled.

The first controller 140 may control the shift lever so that the gear stage of the shift lever is fixed to the parking gear stage. That is, the first controller 140 may control locking of the shift lever so that the gear stage of the shift lever is fixed to the parking gear stage.

When the first controller 140 controls the vehicle so that the vehicle cannot be driven, the first controller 140 controls the transmission 170 so that the gear stage by the shift lever 171 is located at the parking gear stage P, and the shift lever ( 171) may control the shifting device 170 to limit the change of the gear stage to the forward gear stage (D), the reverse gear stage (R), and the neutral gear stage (N).

Even when the gear stage is changed to the forward gear stage (D), the reverse gear stage (R), and the neutral gear stage (N) by the shift lever 171, the first control unit 140 transmits a forward command, a reverse command, or a neutral command. It is possible to control the gear unit 172 to limit or hold.

When controlling the vehicle so that the driving of the vehicle is impossible, the first control unit 140 may limit the start-up control.

When it is determined that the charging cable is connected to the charging port, the first control unit 140 may restrict the operation of at least one of the engine and the motor.

When it is determined that the connector 210 of the charging cable is disconnected from the charging port 118c of the vehicle, the first controller 140 may control the vehicle to drive the vehicle, and display the separation information of the charging cable 2 on the first display unit. It is also possible to control the first display unit 160 to display through 160 .

The state in which the connector 210 of the charging cable is separated from the charging port 118c of the vehicle may be a state in which it is determined that the connector 210 of the charging cable is not connected to the charging port 118c of the vehicle.

When the first control unit 140 controls the vehicle so that the vehicle can move (ie, travel) in a state in which the connector 210 of the charging cable is separated from the charging port 118c of the vehicle, the gear stage of the shift lever is changed. To enable this, the shift device may be controlled, and the first display unit 160 may be controlled to display operable information of the shift lever.

The first control unit 140 determines whether the gear stage of the shift lever 171 is a parking gear stage (P), a forward gear stage (D), a reverse gear stage (R), and a neutral gear stage (N) according to the user's will. The shifting device 170 may be controlled to change to one position.

In response to the autonomous driving mode, the first control unit 140 determines that the gear stage of the shift lever 171 is a parking gear stage (P), a forward gear stage (D), a reverse gear stage (R), and a neutral gear stage (N). It can be changed to any one position.

When it is determined that the proximity detection pin PD is in a disconnected state, the first controller 140 may periodically determine whether the charging cable is disconnected.

When controlling the vehicle so that the vehicle can be driven, the first control unit 140 may allow the vehicle to start. When it is determined that the charging cable is connected to the charging port, the first control unit 140 may allow operation control of at least one of the engine and the motor.

It is also possible for the first control unit 140 to receive connection information from the control box 230 of the charging cable 2 , and in this case, the display unit 160 to display the connection information of the charging cable through the first display unit 160 . It is also possible to control.

The first control unit 140 performs the above-described operation using a memory (not shown) that stores data for an algorithm or a program that reproduces the algorithm for controlling the operation of components in the vehicle, and the data stored in the memory. It may be implemented by a processor (not shown). In this case, the memory and the processor may be implemented as separate chips. Alternatively, the memory and the processor may be implemented as a single chip.

The first controller 140 may be an electronic control unit (ECU) that controls driving of the vehicle, and may be any one of a microcomputer, a CPU, and a processor.

5 is a control configuration diagram of a charging cable connected to a vehicle according to an embodiment.

The charging cable 2 may include a second display unit 232 , a second control unit 233 , an interface unit 234 , a driving unit 235 , a terminal unit 236 , and a storage unit 250 .

The second display unit 232 , the second control unit 233 , the interface unit 234 , the driving unit 235 , the terminal unit 236 , and the storage unit 250 may be provided in the control box 230 .

The second display unit 232 may display charging state information of the vehicle, connection information of the vehicle and charging cable, software information, and the like in response to a control command of the second control unit 233 .

The second controller 233 determines whether the connector 210 of the charging cable is connected to the charging port 118c of the vehicle based on the received signal of the proximity detection pin PD.

The second control unit 233 may also transmit connection information between the vehicle 1 and the charging cable 2 to the vehicle 1 . In this case, the first controller 233 may transmit connection information of the charging cable 2 to the vehicle 1 through the control pilot pin CP.

The second control unit 233 communicates with the vehicle 1 through the control pilot pin CP, and at this time, based on the signal received through the control pilot pin CP, the charging state of the battery of the vehicle 1 is monitored. Communication mode for monitoring is performed.

That is, the second control unit 233 may receive the charge state information of the battery of the vehicle while the vehicle is being charged and control the display of the received state of charge information.

The second control unit 233 is a switch (not shown) so that external power is transmitted to the vehicle 1 through the live pin (L1), the neutral pin (L2/N), and the ground pin (GND) when the vehicle 1 is charged. ), it is also possible to control the on and off.

When the vehicle 1 is being charged, the second control unit 233 may communicate with the vehicle 1 to diagnose a failure of the vehicle 1 . The second controller 233 may diagnose failures of various operations related to charging of the vehicle 1 and store diagnostic information.

The second control unit 233 may detect a leakage current during charging of the vehicle 1 to cut off power during charging, and monitor a ground state.

The second controller 233 may determine whether to communicate with the communication device 3 based on signals of a control pilot pin (CP) and a ground pin.

When communicating with the communication device 3 , the second controller 233 may transmit vehicle diagnostic information to the communication device 3 .

The second control unit 233 may control the second display unit 232 to check the state of charge of the battery and display the confirmed state of charge of the battery.

Here, the charging state may include a charging entry state, a charging progress state, a charging completion state, and a charging failure state.

When update information is received from the communication device 3 , the second control unit 233 updates stored software based on the received update information and stores information related to performing the update.

The second control unit 233 may transmit/receive data to and from the communication device or the vehicle 1 through the interface unit 234 .

The interface unit 234 monitors a communication state with the vehicle 1 and the communication device 3 based on a control command from the second control unit 233 , and transmits data to the communication device 3 , or the communication device 3 . ), and may receive a signal corresponding to the communicable state and a change command signal to the update mode from the communication device 3 .

The data transmitted to the communication device 3 may be information related to charging of the vehicle 1 , diagnostic information of the vehicle 1 , or identification information of the charging cable 2 .

The data received from the communication device 3 may include data related to vehicle charging and data related to update information.

The interface unit 234 may communicate with the vehicle 1 using the control pilot pin CP of the connector 210 at least one of a universal asynchronous receiver transmitter (UART) and a local interconnect network (LIN).

The driving unit 235 outputs a voltage applied to the control pilot pin CP of the connector 210 to the communication device 3 , and also monitors the voltage of the control pilot pin CP adjusted by the communication device 3 . do. At this time, the monitored voltage may be input to the second control unit 233 through the interface unit 234 .

The terminal unit 236 includes a live pin (L1), a neutral pin (L2/N), a ground pin (GND), a proximity detection pin (PD), and a control pilot pin (CP) provided in the connector 210 . It can be connected to the live pin (L1), neutral pin (L2/N), ground pin (GND), proximity detection pin (PD), and control pilot pin (Control Pilot, CP).

The terminal unit 236 includes a live pin (L1), a neutral pin (L2/N), a ground pin (GND), a proximity detection pin (PD), and a control when charging the vehicle 1 and communicating with the vehicle 1 . A signal transmitted from the vehicle may be received through a pilot pin (Control Pilot, CP), and a signal may be transmitted to the vehicle 1 through each pin based on a control command of the second controller 233 .

The terminal unit 236 may receive a signal from the communication device through a ground pin (GND) and a control pilot pin (CP) when communicating with the communication device 3 , and a ground pin (GND) and a control pilot pin A signal may be transmitted to the communication device 3 through (Control Pilot, CP).

The second control unit 233 is software for controlling the charging of the vehicle, monitoring the charging of the vehicle, and controlling the operation of the components in the charging cable 2 to communicate with the vehicle 1 and the communication device 3 . Alternatively, it may be implemented as a memory (not shown) that stores data for a program that reproduces software, and a processor (not shown) that performs the above-described operation using the data stored in the memory. In this case, the memory and the processor may be implemented as separate chips. Alternatively, the memory and the processor may be implemented as a single chip.

The charging cable 2 may further include a storage unit 250 .

The storage unit 250 may store identification information of the vehicle 1 and identification information of the communication device 3 .

The storage unit 250 may store information about a preset voltage value.

The storage unit 250 may be a memory implemented as a chip separate from the processor associated with the second control unit 233 , or may be implemented as a single chip with the processor.

The storage unit 250 controls the charging of the vehicle, monitors the charging of the vehicle, and it is also possible to store software for performing communication with the vehicle and the communication device.

The storage unit 250 is a nonvolatile memory device or RAM such as a cache, read only memory (ROM), programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), and flash memory. It may be implemented as at least one of a volatile memory device such as (Random Access Memory), a hard disk drive (HDD), or a storage medium such as a CD-ROM, but is not limited thereto.

In addition to the vehicle 1 , the charging cable 2 may communicate with the communication device 3 and receive information for updating software from the communication device 3 .

The charging cable 2 may be connected to the communication device 3 through the connector 210 , wherein a control pilot (CP) pin and a ground pin (GND) in the connector 210 may be connected to the communication device 3 . have.

The communication device 3 may display communication information with the charging cable 2 , communication information with a terminal, update information, and the like.

The communication device 3 is connected to the control pilot pin (CP) and the ground pin (GND) provided in the connector 210 of the charging cable, and the signal of the control pilot pin (CP) and the ground pin (GND) of the charging cable (2) and transmits a signal to the control pilot pin (CP) and the ground pin (GND) of the charging cable (2).

6 is a control flowchart of a vehicle according to an embodiment, which will be described with reference to FIG. 7 .

7 is a signal graph of a control pilot pin and a proximity detection pin for recognizing the connection and separation of a vehicle and a charging cable according to an embodiment.

When the signal of the proximity detection pin PD of the charging cable 2 is recognized, the vehicle 1 has a connector 210 of the charging cable based on the recognized signal of the proximity detection pin PD of the charging cable 2 is the vehicle. It can be determined whether it is connected to the charging port 118c of

Also, when the control pilot pin CP of the charging cable 2 is recognized, the vehicle 1 determines whether the connector 210 of the charging cable is connected to the charging port 118c of the vehicle based on the recognized signal of the control pilot pin. can judge

More specifically, when the charging cable 2 is connected to an external commercial power source through the plug 220 , it may receive external commercial power through the plug 220 and use it as driving power. At this time, the voltage applied to the control pilot pin CP of the charging cable 2 may be approximately 12V.

When the charging cable 2 is connected to the vehicle 1 , the voltage applied to the control pilot pin CP may be changed to a DC voltage of approximately 9V by a resistor provided inside the vehicle 1 .

The charging cable 2 recognizes the 9V changed voltage, determines that the charging cable 2 is connected to the vehicle 1, and performs pulse width modulation of the voltage applied to the control pilot pin CP, thereby controlling the control pilot pin CP. ) to output a voltage between -12V and 9V.

At this time, the vehicle 1 recognizes a DC voltage between -12V and 9V received through the charging cable 2 , and through this, it can be determined that the charging cable 2 is connected to the vehicle 1 .

When it is determined that charging is possible by connecting the charging cable, the vehicle 1 lowers the voltage of the control pilot pin CP through pulse width modulation so that a DC voltage between -12V and +3V is output.

The vehicle 1 may determine ( 183 ) whether it is connected to the connector of the charging cable 2 through the DC voltage recognized through the control pilot pin CP.

In addition, the charging cable 2 may control the operation of the relay to charge the battery of the vehicle 2 when a voltage between -12V and 3V changed in the vehicle is recognized.

When it is determined that the connector 210 of the charging cable is connected to the charging port 118c of the vehicle, the vehicle 1 may control the vehicle 1 so that the vehicle 1 cannot travel. In this case, the vehicle 1 may restrict the operation of the shift lever and display it through the first display unit.

The vehicle 1 may perform 184 charging of the battery using power supplied through the charging cable 2 .

The vehicle may monitor the charging state of the battery to determine whether charging is complete, and if it is determined that the battery is fully charged, the vehicle may transmit charging completion information to the charging cable and the charger.

The vehicle 1 may determine whether the proximity detection pin is disconnected based on whether the signal of the proximity detection pin is recognized during charging of the battery ( 185 ), and when it is determined that the proximity detection pin is disconnected, it may be determined that charging is complete. At this time, the vehicle 1 may be controlled to stop ( 186 ) the operation for charging the battery. On the other hand, if it is determined that the proximity detection pin is not disconnected, the vehicle may continue to charge the battery.

As shown in FIG. 7 , the vehicle determines whether the signal of the proximity detection pin PD received while charging the battery is an open signal, and the received signal of the proximity detection pin PD is OPEN. If it is determined that the signal is in the state, it is determined that the proximity detection pin PD is disconnected.

The vehicle 1 checks the signal of the control pilot pin CP when it is determined that the proximity detection pin PD is disconnected. At this time, the vehicle may check (187) a voltage value for the signal of the control pilot pin (CP).

The vehicle 1 determines whether the checked voltage value for the signal of the control pilot pin CP is a preset voltage value ( 188 ), and the checked voltage value for the signal of the control pilot pin CP is the preset voltage value. If it is determined that no, it is determined that the connector 210 of the charging cable is connected to the charging port 118c of the vehicle. Here, the preset voltage value may be approximately 0V.

When it is determined that the connector 210 of the charging cable is connected to the charging port 118c of the vehicle, the vehicle 1 may perform a driving disabling control so that driving is impossible ( 189 ).

Here, the driving disabling control may include control of the transmission device that disables the operation of the shift lever. In this case, the shift lever may be located only in the parking gear stage (P).

The driving impossible control may include controlling the operation of the electronic parking brake or the side brake to be impossible.

In addition, it is also possible to control the shift lever to be positioned only in the parking gear stage P, that is, to be in a locked state in which the shift lever is locked so that the position change of the shift lever is impossible.

Even when the gear stage of the shift lever is changed to at least one of the forward gear stage (D), the reverse gear stage (R), and the neutral gear stage (N) by the user, the vehicle only sends the parking gear stage signal to the first control unit. can be sent

The driving disable control may include limiting control of driving of a plurality of wheels.

The vehicle may display notification information indicating that the charging cable is connected to the vehicle through the first display unit 160 , and display at least one of the driving impossibility information and the shift lever operation impossibility information through the first display unit 160 . can do.

When the charging cable is connected to the vehicle, the vehicle may determine whether the charging cable is continuously connected to the vehicle by periodically checking the voltage value for the signal of the control pilot pin CP.

In this way, when the charging cable and the vehicle are connected, the safety of the vehicle can be improved by controlling the transmission so that the vehicle cannot be driven. That is, by making it impossible to drive the vehicle, accidents of the vehicle and the user can be reduced, and damage to the vehicle and the charging cable can be prevented.

The vehicle determines that the connector 210 of the charging cable is disconnected from the charging port 118c of the vehicle when it is determined that the voltage value for the checked signal of the control pilot pin CP is a preset voltage value.

As shown in FIG. 7 , the vehicle 1 cannot recognize the voltage of the control pilot pin CP when the charging cable 2 is disconnected from the vehicle. That is, when the charging cable is disconnected, the vehicle 1 may recognize a voltage of 0V as the voltage of the control pilot pin CP.

When it is determined that the connector 210 of the charging cable is disconnected from the charging port 118c of the vehicle, the vehicle may perform the drivability control 190 to enable the vehicle to travel.

Here, the drivable control may include control of a transmission device that enables operation of a shift lever. At this time, the vehicle may control the transmission to change the gear stage of the shift lever to at least one of the parking gear stage (P), the forward gear stage (D), the reverse gear stage (R ), and the neutral gear stage (N). have.

The driving enable control may include controlling the operation of the electronic parking brake or the side brake.

The driving enable control may include permitting control of driving of a plurality of wheels.

The vehicle may display notification information indicating that the charging cable is disconnected from the vehicle through the first display unit 160 , and display at least one of drivable information and operable information of the shift lever through the first display unit 160 . can be displayed

Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium storing instructions executable by a computer. Instructions may be stored in the form of program code, and when executed by a processor, may generate program modules to perform operations of the disclosed embodiments. The recording medium may be implemented as a computer-readable recording medium.

The computer-readable recording medium includes any type of recording medium in which instructions readable by the computer are stored. For example, there may be a read only memory (ROM), a random access memory (RAM), a magnetic tape, a magnetic disk, a flash memory, an optical data storage device, and the like.

The disclosed embodiments have been described with reference to the accompanying drawings as described above. Those of ordinary skill in the art to which the present invention pertains, without changing the technical spirit or essential features of the present invention, have different forms from the disclosed embodiments. It will be understood that the present invention may be practiced with The disclosed embodiments are illustrative and should not be construed as limiting.

1: Vehicle 2: Charging cable
3: communication device

Claims (16)

gearbox;
a charging port to which a plurality of pins provided on the charging cable are connected; and
It is determined whether the charging port and the charging cable are connected based on a signal received through at least one of the plurality of pins, and when it is determined that the charging cable is connected to the charging port, the shifting is performed to prevent driving. A vehicle comprising: a control unit for controlling a device and controlling the transmission device to allow driving when it is determined that the charging cable is disconnected from the charging port. The method of claim 1,
The shift device includes a shift lever for changing a position to a plurality of gear stages,
When it is determined that the charging cable is connected to the charging port, the controller controls the shift lever so that the gear stage of the shift lever is fixed to the parking gear stage to prevent driving. According to claim 2, wherein the control unit,
When it is determined that the charging cable is disconnected from the charging port, a vehicle controlling the shift lever to change the gear stage of the shift lever to any one of a parking gear stage, a forward gear stage, a reverse gear stage, and a neutral gear stage to allow driving . According to claim 1, wherein the control unit,
A vehicle that restricts starting when it is determined that the charging cable is connected to the charging port. The method of claim 1,
Further comprising at least one of an engine and a motor for applying a driving force to the wheel,
When it is determined that the charging cable is connected to the charging port, the control unit limits the operation of at least one of the engine and the motor. According to claim 1, wherein the control unit,
When a signal is received from a proximity sensing pin among the plurality of pins, it is determined whether the proximity sensing pin is in an open state based on the received signal of the proximity sensing pin, and when it is determined that the proximity sensing pin is in an open state, one of the plurality of pins A vehicle that determines whether the charging cable is connected to the charging port based on a signal received from a control pilot pin. According to claim 6, wherein the control unit,
If the voltage value corresponding to the signal received from the control pilot pin is not a preset voltage value, it is determined that the charging cable is connected to the charging port, and the voltage value corresponding to the signal received from the control pilot pin is set in advance. If it is a set voltage value, the vehicle determines that the charging cable is disconnected from the charging port. According to claim 7, wherein the preset voltage value,
A vehicle with a voltage value of approximately 0V. The method of claim 7, wherein the control unit,
If it is determined that the proximity detection pin is not in the open state, the battery is maintained, and if the proximity detection pin is in the open state and the voltage value corresponding to the signal received from the control pilot pin is a preset voltage value, Vehicles that stop charging. According to claim 1, wherein the control unit,
When it is determined that the charging cable is connected to the charging port, the vehicle periodically determines whether the charging cable is connected. Based on a signal received through at least one pin of a plurality of pins of the charging cable connected to the charging port, it is determined whether the charging port and the charging cable are connected,
When it is determined that the charging cable is connected to the charging port, the transmission is controlled to prevent the vehicle from running,
When it is determined that the charging cable is disconnected from the charging port, the control method of the vehicle controls the transmission to allow the vehicle to travel. 12. The method of claim 11, wherein controlling the transmission to prevent the vehicle from running comprises:
A method of controlling a vehicle, comprising: fixing a gear stage of the shift lever to a parking gear stage such that a change of the gear stage of the shift lever is limited to any one of a parking gear stage, a forward gear stage, a reverse gear stage, and a neutral gear stage. 12. The method of claim 11, wherein controlling the transmission to allow driving of the vehicle comprises:
A method of controlling a vehicle, comprising: controlling the shift lever so that a gear stage of the shift lever is changed to any one of a parking gear stage, a forward gear stage, a reverse gear stage, and a neutral gear stage. 12. The method of claim 11,
When it is determined that the charging cable is connected to the charging port, the control method of the vehicle further comprising controlling at least one of limiting an operation of at least one of an engine and a motor and limiting a start. The method of claim 11, wherein determining whether the charging port and the charging cable are connected to each other comprises:
When a signal is received from the proximity detection pin among the plurality of pins, it is determined whether the proximity detection pin is in an open state based on the received signal of the proximity detection pin,
When it is determined that the proximity detection pin is in an open state, a voltage value corresponding to a signal received from a control pilot pin among the plurality of pins is compared with a preset voltage value,
If the voltage value corresponding to the signal received from the control pilot pin is not a preset voltage value, it is determined that the charging cable is connected to the charging port,
and determining that the charging cable is disconnected from the charging port when the voltage value corresponding to the signal received from the control pilot pin is a preset voltage value. 16. The method of claim 15,
If it is determined that the proximity detection pin is not in the open state, the battery is maintained, and if the proximity detection pin is in the open state and the voltage value corresponding to the signal received from the control pilot pin is a preset voltage value, The method of controlling a vehicle further comprising stopping charging.

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