WO2023051603A1 - 一种电动汽车充电座、其检测方法及电动汽车 - Google Patents

一种电动汽车充电座、其检测方法及电动汽车 Download PDF

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Publication number
WO2023051603A1
WO2023051603A1 PCT/CN2022/122096 CN2022122096W WO2023051603A1 WO 2023051603 A1 WO2023051603 A1 WO 2023051603A1 CN 2022122096 W CN2022122096 W CN 2022122096W WO 2023051603 A1 WO2023051603 A1 WO 2023051603A1
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Prior art keywords
functional
signal
light
lamp
voltage
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PCT/CN2022/122096
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English (en)
French (fr)
Inventor
王超
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长春捷翼汽车零部件有限公司
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Publication of WO2023051603A1 publication Critical patent/WO2023051603A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the invention relates to the technical field of electric vehicles, in particular to an electric vehicle charging stand, a detection method thereof and an electric vehicle.
  • the invention provides a charging stand for an electric vehicle, a detection method thereof, and an electric vehicle.
  • the charging stand for the electric vehicle can detect whether a functional lamp fails.
  • an embodiment of the present invention provides an electric vehicle charging stand, including at least one functional lamp, a control unit, and at least one voltage dividing unit corresponding to at least one of the functional lamps;
  • each of the voltage dividing units is connected to the corresponding functional light, so as to divide the voltage at both ends of the functional light;
  • the control unit includes a signal output module, an acquisition module and a judgment module, wherein:
  • the signal output module is configured to: output a state adjustment signal corresponding to each of the functional lamps according to the charging state of the vehicle, so as to adjust the working state of each of the functional lamps;
  • the acquisition module is configured to: acquire the state adjustment signal corresponding to each of the functional lamps and the output voltage of each output terminal of the voltage dividing unit;
  • the judging module is configured to: when the state adjustment signal is a signal for controlling the lighting of the corresponding functional lamp, determine whether the functional lamp is faulty according to the output voltage of the output terminal of the voltage dividing unit corresponding to it .
  • the electric vehicle charging stand includes at least one functional lamp, a control unit, and at least one voltage dividing unit corresponding to the functional lamp; the voltage dividing unit can divide the voltage at both ends of the corresponding functional lamp, and the control unit can include A signal output module, an acquisition module and a judgment module, wherein the signal output module can output a state adjustment signal corresponding to each functional lamp according to the charging state of the vehicle to adjust the working state of each functional lamp, and the acquisition module can obtain each The state adjustment signal corresponding to the function light and the output voltage at the output end of each voltage dividing unit, the judging module can, when the state adjustment signal is a signal for controlling the lighting of its corresponding function light, according to the output voltage at the output end of the corresponding voltage dividing unit, Determine whether the function lights are faulty, and report to the car's management system when there is a fault in the function lights, which can notify the user of the fault and remind the user to repair the faulty function lights to avoid inconvenience to the car's charging.
  • the judging module is specifically configured as:
  • the judgment module will determine that the function lamp is faulty, and can report the fault situation to remind the user of the fault of the function lamp , needs to be repaired to avoid the inconvenience of charging the car.
  • the judging module is further specifically configured to:
  • the output voltage is equal to a second preset voltage, it is determined that the functional lamp is disconnected, wherein the second preset voltage is equal to the voltage value of the output terminal of the voltage dividing unit when the functional lamp is turned off.
  • the type of fault can be detected, so that the user can know the type of fault, and it is convenient and better to carry out maintenance.
  • At least one switch unit corresponding to at least one of the functional lamps is also included;
  • each functional light is connected to the power supply, the negative pole of each functional light is grounded through the corresponding switch unit, and the control terminal of each switch unit is connected to the signal output module to receive the corresponding The state adjustment signal.
  • the state adjustment signal output by the signal output module can be turned on and off by controlling the switch unit, so that the function lamp can be turned on and off.
  • the at least one function light includes at least one status light for indicating the charging state, and/or a lighting light for providing illumination for plugging and unplugging the charging gun head during charging;
  • the state adjustment signal is a pulse width modulation signal
  • the state adjustment signal is a level signal.
  • the status light can indicate the charging state of the charging vehicle, and the lighting lamp can illuminate when the charging gun head is plugged in and out, which is convenient for the user to operate.
  • At least one of said status lights includes a red status light, a green status light and a blue status light for forming a charge status indicator light.
  • a charging status indicator which can indicate different charging statuses of the electric vehicle by adjusting the color and working status of the charging status indicator.
  • the signal output module is specifically configured as:
  • the third pulse width modulation signal is the second pulse width modulation signal and the first pulse
  • the width modulation signals are arranged alternately; or,
  • the duty ratio of the fourth pulse width modulation signal repeats the process of increasing first and then decreasing successively.
  • the signal output module can output different pulse width modulation signals to adjust the working state of the status light and realize different working modes of the status light.
  • the signal output module is specifically configured as:
  • a low-level signal is output to a switch unit connected to the illuminating lamp to control the illuminating lamp to be turned off.
  • the signal output module can output a high-level signal and a low-level signal to control the lighting lamp to be always on or off.
  • the switch unit includes a switch tube, a first resistor and a second resistor;
  • the first end of the switch tube is connected to the negative pole of the functional lamp, the second end of the switch tube is grounded; the first end of the first resistor is connected to the signal output module, and the first end of the first resistor
  • the second terminal is connected to the control terminal of the switch tube, the first terminal of the second resistor is connected to the control terminal of the switch tube, and the second terminal of the second resistor is grounded.
  • the state adjustment signal output by the signal output module can be turned on and off by controlling the switching tube, so that the function lamp can be turned on and off, and the first resistor and the second resistor can output the signal to the signal output module.
  • the state adjustment signal is divided into the voltage range that the switch tube can withstand, which can prevent the switch tube from being burned due to the high voltage of the state control signal.
  • At least one current limiting unit corresponding to at least one of the functional lamps is further included, and the anode of the functional lamp is connected to the power supply through the current limiting unit.
  • the current limiting unit can limit the current in the functional lamp circuit to prevent the functional lamp from being burned due to excessive current, or to prevent the functional lamp from working under the condition of exceeding the maximum current for a long time, resulting in shortening the life of the functional lamp.
  • each of the current limiting units includes a third resistor, a first end of the third resistor is connected to a power supply, and a second end of the third resistor is connected to the anode of the functional lamp.
  • the third resistor can limit the current in the circuit of the functional lamp to protect the functional lamp.
  • each of the voltage dividing units includes a fourth resistor and a fifth resistor, the first end of the fourth resistor is connected to the anode of the functional lamp, the second end of the fourth resistor is connected to the The acquisition module is connected, the first end of the fifth resistor is connected to the second end of the fourth resistor, and the second end of the fifth resistor is grounded.
  • the voltage divider circuit can divide the voltage at both ends of the functional lamp to protect the circuit.
  • At least one signal filtering unit corresponding to at least one of the voltage dividing units is also included, and is used to filter the output voltage of the output terminal of the voltage dividing unit, and the input terminal of each of the signal filtering units is connected to the corresponding The output end of the voltage dividing unit is connected, and the output end of each signal filtering unit is connected with the acquisition module.
  • the signal filter unit can filter the voltage output by the output terminal of the voltage divider unit, so as to ensure the quality of the signal obtained by the acquisition module.
  • each of the signal filtering units includes a sixth resistor and a filter capacitor, the first end of the sixth resistor is connected to the output end of the voltage dividing unit, and the second end of the sixth resistor is connected to the The acquisition module is connected, the first end of the filter capacitor is connected to the second end of the sixth resistor, and the second end of the filter capacitor is grounded.
  • the sixth resistor can prevent the large current from flowing into the control unit after the failure of the function lamp, and burn the control unit, and play a role of current limiting;
  • the filter capacitor can perform filtering to ensure the sampling function of the acquisition module of the control unit, reducing the Small sampling fluctuations.
  • the acquisition module includes sub-acquisition modules one-to-one corresponding to the functional lights, and each sub-acquisition module is configured as:
  • the state adjustment signal corresponding to the functional light and the output voltage of the output terminal of the voltage dividing unit corresponding to the functional light are acquired.
  • the acquisition module may include sub-acquisition modules that correspond one-to-one to the function lights, and obtain the state adjustment signal and the output voltage of the output terminal of the voltage dividing unit through the sub-acquisition modules.
  • the present invention also provides an electric vehicle, including any electric vehicle charging stand provided in the above technical solutions.
  • the present invention also provides a detection method for an electric vehicle charging stand, the electric vehicle charging stand comprising at least one functional lamp and at least one voltage dividing unit connected to at least one of the functional lamps in a one-to-one correspondence, the Detection methods include:
  • the state adjustment signal is a lighting signal for controlling the lighting of the corresponding functional lamp
  • the determining whether there is a fault in the functional lamp according to the output voltage output by the corresponding voltage dividing unit includes:
  • the determining that the functional lamp is faulty includes:
  • the output voltage is equal to a second preset voltage, it is determined that the functional lamp is disconnected, wherein the second preset voltage is equal to the voltage value of the output terminal of the voltage dividing unit when the functional lamp is turned off.
  • the outputting a state adjustment signal corresponding to each of the functional lights includes:
  • the third pulse width modulation signal is the second pulse width modulation signal and the first pulse
  • the width modulation signals are arranged alternately; or,
  • the duty ratio of the fourth pulse width modulation signal repeats the process of increasing first and then decreasing successively.
  • the outputting a state adjustment signal corresponding to each of the functional lights includes:
  • a low-level signal is output to a switch unit connected to the illuminating lamp to control the illuminating lamp to be turned off.
  • An electric vehicle charging stand, a detection method thereof, and an electric vehicle provided in an embodiment of the present invention include at least one functional lamp, a control unit, and at least one voltage dividing unit corresponding to the functional lamp; the voltage dividing unit can correspond to the The voltage at both ends of the function lights is divided, and the control unit can include a signal output module, an acquisition module and a judgment module, wherein the signal output module can output a state adjustment signal corresponding to each function light according to the charging state of the vehicle, so as to adjust the state of each function light.
  • the acquisition module can obtain the state adjustment signal corresponding to each functional lamp and the output voltage of the output terminal of each voltage divider unit, and the judgment module can be used when the state adjustment signal is a signal for controlling the lighting of the corresponding functional lamp , according to the output voltage of the output terminal of the corresponding voltage divider unit, determine whether there is a fault in the functional lamp, and when the functional lamp is faulty, it can be reported to the management system of the car, which can inform the user of the fault and remind the user to repair the faulty functional lamp to avoid It is inconvenient to charge the car.
  • Fig. 1 is a schematic structural view of an electric vehicle charging stand provided by an embodiment of the present invention
  • Fig. 2 is a schematic structural diagram of another electric vehicle charging stand provided by an embodiment of the present invention.
  • Fig. 3 is a schematic structural diagram of another electric vehicle charging stand provided by an embodiment of the present invention.
  • Fig. 4 is a schematic structural diagram of another electric vehicle charging stand provided by an embodiment of the present invention.
  • Fig. 5 is a schematic structural diagram of another electric vehicle charging stand provided by an embodiment of the present invention.
  • Fig. 6 is a schematic structural diagram of another electric vehicle charging stand provided by an embodiment of the present invention.
  • Fig. 7 is a schematic structural diagram of another electric vehicle charging stand provided by an embodiment of the present invention.
  • Fig. 8 is a schematic structural diagram of another electric vehicle charging stand provided by an embodiment of the present invention.
  • Fig. 9 is a schematic structural diagram of another electric vehicle charging stand provided by an embodiment of the present invention.
  • Fig. 10 is a flow chart of a detection method for an electric vehicle charging stand provided by an embodiment of the present invention.
  • the present invention provides an electric vehicle charging stand, including at least one functional lamp 1, a control unit 2, and at least one voltage dividing unit 3 corresponding to the functional lamp 1 one by one;
  • each voltage dividing unit 3 is connected with its corresponding functional lamp 1, so as to divide the voltage at both ends of the functional lamp 1;
  • the control unit 2 may include a signal output module 21, an acquisition module 22 and a judgment module 23, wherein:
  • the signal output module 21 is configured to: output a state adjustment signal corresponding to each functional light 1 according to the charging state of the vehicle, so as to adjust the working state of each functional light 1;
  • the acquisition module 22 is configured to: acquire the state adjustment signal corresponding to each functional lamp 1 and the output voltage at the output terminal of each voltage dividing unit 3;
  • the judging module 23 is configured to: when the state adjustment signal is a signal for controlling the lighting of the corresponding functional lamp 1 , determine whether the functional lamp 1 is faulty or not according to the output voltage of the output terminal of the corresponding voltage dividing unit 3 .
  • the electric vehicle charging stand provided by the above-mentioned embodiment of the invention includes at least one functional lamp 1, a control unit 2, and at least one voltage dividing unit 3 corresponding to the functional lamp 1; the voltage dividing unit 3 can correspond to the functional lamp 1
  • the voltage at both ends is divided, and the control unit 2 can include a signal output module 21, an acquisition module 22 and a judgment module 23, wherein: the signal output module 21 can output a state adjustment signal corresponding to each functional lamp 1 according to the charging state of the vehicle, In order to adjust the working state of each functional lamp 1, the acquisition module 22 can obtain the corresponding state adjustment signal of each functional lamp 1 and the output voltage of the output terminal of each voltage dividing unit 3, and the configuration of the judgment module 23 can be used to control the state adjustment signal.
  • the at least one functional light 1 may include at least one status light for indicating the charging state, and/or an illuminating light for providing illumination for plugging and unplugging the gun head during charging.
  • the status light can indicate the charging state of the charging car, and the lighting light can illuminate when plugging and unplugging the charging gun head, which is convenient for users to operate.
  • the above-mentioned status lights and lighting lights may be LED lights, or may be other implementation manners, which are not limited here.
  • the charging state of the above-mentioned car can be charging, charging, charging completed, plugging and unplugging the charging plug, etc.
  • the signal output module 21 can output a state adjustment signal for adjusting the working state of each function lamp 1 according to the charging state of the car, so that the function lamps 1. It has different working states and realizes different functions.
  • the working state of the above-mentioned status light may include on, off, brightness, etc.; the working state of the above-mentioned illuminating light may include on, off, etc.
  • At least one functional lamp 1 may include a plurality of status lamps of different colors that cooperate with each other. For example, as shown in FIG. Realize the ratio of RGB three primary colors to form a charging status indicator.
  • the signal output module 21 outputs different state adjustment signals according to the charging state of the car, and can adjust the color, brightness, and working mode (such as constant light, off, and off) of the charging state indicator light by adjusting the lighting, off, and brightness of the three primary color state lights. , flashing, breathing, etc.) etc.
  • At least one functional lamp 1 may also include a lighting lamp LED_W, and the lighting lamp LED_W may be a white light lamp.
  • the state control unit 2 may output a The lighted state adjusts the signal, so that the lighting lamp LED_W plays the role of lighting.
  • control unit 2 may be an integrated chip, for example, a single-chip microcomputer or the like.
  • the control unit 2 includes a signal output module 21 , an acquisition module 22 and a judgment module 23 .
  • the voltage dividing unit 3 can divide the voltage across the functional lamp 1 to a reasonable voltage range that the control unit 2 can receive, so as to ensure that the control unit 2 will not be burned due to excessive voltage and protect the switch unit 4 .
  • the output voltage at the output terminal of the voltage dividing unit 3 received by the control unit 2 may be half of the voltage at both ends of the functional lamp 1 , which can protect the integrated chip as the control unit 2 .
  • the judging module 23 in the control unit 2 can be specifically used for:
  • the first preset voltage is equal to the value after the conduction voltage drop of the functional lamp 1 is divided by the voltage dividing unit 3;
  • the state adjustment signal output by the signal output module 21 is a signal for controlling the lighting of the corresponding functional lamp 1
  • the functional lamp 1 is lit, and the two ends of the functional lamp 1 have Conduction voltage drop
  • the judgment module 23 determines that the functional lamp 1 has no fault and works normally.
  • the acquisition module 22 receives If the received output voltage is not the value after the conduction voltage drop of the functional lamp 1 is divided by the voltage divider unit 3, then the judging module 23 determines that the functional lamp 1 is faulty, and can report the fault situation to remind the user that the functional lamp 1 is faulty and needs to Make repairs and avoid the inconvenience of charging your car. As shown in FIG. 9 , the control unit can detect the red state light LED_R, the green state light LED_G, the blue state light LED_B and the lighting light LED_W on the charging stand of the electric vehicle respectively.
  • the judging module 23 in the control unit 2 can be specifically used for:
  • the second preset voltage is equal to the voltage value at the output terminal of the voltage dividing unit 3 when the functional lamp 1 is turned off.
  • the state adjustment signal output by the signal output module 21 is a signal for controlling the lighting of the functional lamp 1
  • the functional lamp 1 is lit; if the functional lamp 1 is faulty, the functional lamp 1 1 Cannot be lit, which will affect the charging of the car. For example, if the status light fails, it cannot correctly indicate the charging status of the car. If the lighting LED_W fails, it cannot realize lighting when plugging and unplugging the charging plug.
  • the state adjustment signal is a signal to control the lighting of the functional lamp, if the output voltage received by the acquisition module 22 is zero, it means that there is no voltage difference between the two ends of the functional lamp 1, and the judging module 23 determines that the functional lamp 1 has a short-circuit fault.
  • the state adjustment signal is a signal for controlling the lighting of the functional lamp
  • the output voltage received by the acquisition module 22 is equal to the voltage value of the output terminal of the voltage dividing unit 3 when the functional lamp 1 is turned off, it means that the functional lamp 1 is not turned on, then
  • the judging module 23 judges that the function lamp 1 has an open circuit fault.
  • the control unit detects the type of the fault, which can make the user know the type of the fault and facilitate better maintenance.
  • At least one switch unit 4 corresponding to at least one functional lamp 1 is also included;
  • each functional lamp 1 is connected to the power supply VCC, the negative pole of each functional lamp 1 is grounded through the switch unit 4, the control terminal of the switch unit 4 is connected to the signal output module 21, and the control terminal of the switch unit 4 is used to receive the state adjustment signal .
  • the state adjustment signal output by the signal output module can be turned on and off by controlling the switch unit 4 , so that the function lamp 1 can be turned on and off.
  • the anodes of the red status light LED_R, the green status light LED_G and the blue status light LED_B that form a charging status indicator light are all connected to the power supply, and the voltage of the power supply can be 12V;
  • the red light status light LED_R , the negative poles of the green state light LED_G and the blue light state light LED_B are respectively grounded through the switch unit 41, the switch unit 42, and the switch unit 43, and the state adjustment signal output by the signal output module 21 passes through the switch unit 41, the switch unit 42 and the switch unit
  • the control of the control terminal of 43 realizes the adjustment of the working states of the red state light LED_R, the green light state light LED_G and the blue light state light LED_B.
  • the positive pole of the lighting lamp LED_W is connected to the power supply, and the voltage of the power supply can be 12V; the negative pole of the lighting lamp LED_W is grounded through the switch unit 44, and the signal output module 21 can realize the adjustment of the working state of the lighting lamp LED_W by controlling the switch unit 44.
  • the signal output module 21 adjusts the state of the function light 1
  • the state adjustment signal can be a pulse width modulation signal (PWM)
  • the state light can be adjusted by adjusting the duty ratio of the pulse width modulation signal.
  • PWM pulse width modulation signal
  • the signal output module 21 can be specifically configured as:
  • the third pulse width modulation signal is alternately arranged with the second pulse width modulation signal and the first pulse width modulation signal;
  • the signal output module 21 when it adjusts the working state of the status lamp, it can adjust the different working states of the status lamp by adjusting the change of the duty ratio of the pulse width modulation signal.
  • the pulse width modulation signal has a high level output signal, there is a process of turning on the status light.
  • the above-mentioned second pulse width modulation signal, third pulse width modulation signal and fourth pulse width modulation signal all have a state During the lighting process of the lamp, during the lighting process of the status lamp, the judging module 23 can judge whether the status lamp is faulty.
  • the charging status of the car is different, and the charging status indicator light composed of the red status light LED_R, the green status light LED_G and the blue status light LED_B corresponds to a different lighting status.
  • the charging state of the car can include sleep mode, charging fault, charging complete, charging, guide matching, and waiting for charging.
  • the signal output module 21 can control the red state light LED_R, the green state light LED_G and the blue state light LED_B to be turned off, so that the charge state indicator light is turned off to indicate the sleep mode;
  • the signal output module 21 can control the red light status light LED_R to blink, the green light state light LED_G and the blue light state light LED_B to be turned off, so that the charging state indicator light displays red light and blinks to indicate charging Fault;
  • the signal output module 21 can control the red state light LED_R and the green state light LED_G to turn off, and the blue light state light LED_B is always on, so that the blue light of the charging state indicator light is always on, so that the charging state
  • the indicator light shows a steady blue light to indicate the charging completion status
  • the signal output module 21 can control the red state light LED_R and the blue light state light LED_B to turn off, and the green light state light LED_G is always on, so that the charging state indicator light shows a green light that is always on to indicate finished charging;
  • the signal output module 21 can control the red light status light LED_R and the green light state light LED_G to breathe synchronously, and the blue light state light LED_B to turn off, so that the charging state indicator light shows yellow light breathing to indicate waiting for charging State; For example, the signal output module 21 outputs the same fourth pulse modulation signal to the control terminal of the switch unit 41 connected to the red state light LED_R and the switch unit 42 connected to the green state light LED_G, the fourth pulse modulation signal
  • the period of controlling the breathing of the status light can be 1s.
  • the duty ratio of the fourth pulse modulation signal can be gradually reduced from 100% to 5%, so that the brightness of the red status light LED_R and the green status light LED_G gradually changes from From large to small, and then within this cycle, the charging status indicator shows the breathing state that the brightness of the yellow light changes from large to small.
  • the signal output module 21 can control the blue light status light LED_B to breathe, the red light status light LED_R and the green light status light LED_G to turn off, so that the charging status indicator shows blue light breathing to indicate the guide match.
  • the signal output module 21 outputs a fourth pulse modulation signal to the control terminal of the switch unit 43 connected to the blue state light LED_B.
  • the cycle of the fourth pulse modulation signal controlling the state light breathing can be 1s.
  • the first 300ms The duty cycle of the fourth pulse modulation signal can be gradually increased from 5% to 100%, so that the brightness of the blue state light LED_B gradually increases from small to large, and the duty cycle of the fourth pulse modulation signal can remain unchanged at 100% in the middle 400ms , the duty cycle of the fourth pulse modulation signal in the last 300ms can be gradually reduced from 100% to 5%, so that the brightness of the blue light status light LED_B gradually changes from large to small, and then within this period, the charging state light shows that the brightness of the blue light is first The breathing state changes from small to large and then from large to small.
  • the present invention does not limit the change law of the duty ratio of the fourth pulse modulation signal, which can be set according to actual selection.
  • the period during which the fourth pulse modulation signal controls the breathing of the status light may include the first stage in which the duty cycle of the fourth pulse modulation signal gradually increases, the duty cycle of the fourth pulse modulation signal The second stage remains unchanged, and the third stage in which the duty ratio of the fourth pulse modulation signal gradually decreases, wherein the durations of the first stage, the second stage and the third stage can be reasonably allocated according to the cycle duration.
  • the duty cycle of the fourth pulse modulation signal can gradually increase from 10% or 20% or any other suitable percentage to 85% or 90% or any other suitable percentage; in the second stage Among them, the duty ratio of the fourth pulse modulation signal can be maintained at 80% or 85% or 90% of the percentage reached by the duty ratio of the fourth pulse modulation signal in the second stage; in the third stage, the fourth The duty cycle of the pulse modulation signal can be gradually reduced from 80% or 85% or 90% or any other suitable percentage to 5% or 10% or any other suitable percentage.
  • the state of charge indicator light can also have other states, and the working state of the state light corresponding to the state of charge is not limited here, and can be set according to actual selection.
  • the signal output module 21 adjusts the state of the functional lamp 1
  • the state adjustment signal can be a high or low level signal
  • the signal output module 21 can be specifically configured as:
  • the signal output module 21 when the signal output module 21 adjusts the working state of the lighting lamp, it can further adjust the lighting of the functional lamp or turn it off through the change of the high and low levels.
  • the state adjustment signal is at a high level, the illuminating lamp is turned on, and at this time the judging module 23 can judge whether the illuminating lamp is faulty.
  • the switch unit 4 may include a switch tube Q, a first resistor R1 and a second resistor R2; connected, the second end of the switch tube Q is grounded; the first end of the first resistor R1 is connected to the signal output module 21, the second end of the first resistor R1 is connected to the control terminal of the switch tube Q, and the first end of the second resistor R2 The terminal is connected to the control terminal of the switch tube Q, and the second terminal of the second resistor R2 is grounded.
  • the state adjustment signal output by the signal output module 21 can be turned on and off by controlling the switch tube Q to turn on and off the functional lamp 1, and the first resistor R1 and the second resistor R2 can control the output of the signal output module 21.
  • the state adjustment signal is divided into the voltage range that the switch tube Q can withstand, which can prevent the switch tube Q from being burned due to the high voltage of the state adjustment signal, and the divided voltage cannot be too low to prevent the switch tube Q from being fully turned on and affecting the conduction current.
  • the switch unit 41 includes a switch tube Q1, a resistor R11, and a resistor R21.
  • the signal output module 21 controls the switching point of the red status light LED_R by controlling the on and off of the switch tube Q1.
  • the switch unit 42 includes a switch tube Q2, a resistor R12, and a resistor R22, and the signal output module 21 controls the on and off of the green status light LED_G by controlling the switch tube Q2 on and off;
  • the switch unit 43 includes The switch tube Q3, the resistor R13 and the resistor R23, the signal output module 21 controls the switch tube Q to be turned on and off, and the green status light LED_G to be turned on and off.
  • the integrated chip 100 can control the switching tube Q1, the switching tube Q2, and the switching tube Q3 by outputting the PWM_R signal, the PWM_G signal, and the PWM_B signal respectively, and the PWM_R signal, the PWM_G signal, and the PWM_B signal are respectively output through the PWM Duty ratio adjusts the working status of switch tube Q1, switch tube Q2 and switch tube Q3.
  • the PWM output duty cycle of PWM_R signal, PWM_G signal and PWM_B the red light status light LED_R, green light status light LED_G and blue light can be adjusted.
  • the brightness, color and working mode (such as flashing according to the frequency, breathing, lighting, turning off, etc.) of the charging status indicator light composed of the status light LED_B.
  • the PWM output duty cycle of the PWM_R signal, PWM_G signal, and PWM_B signal is 0, the switching tube Q1, the switching tube Q2, and the switching tube Q3 are not turned on, and the three status lights are off, and the charging status indicator composed The light is turned off; when the PWM output duty cycle of the PWM_R signal, PWM_G signal, and PWM_B signal is not zero, the switching tube Q1, switching tube Q2, and switching tube Q3 are turned on, and the charging status indicator light composed of three status lights light up.
  • the PWM signal can be output through the PWM output pin.
  • the switch unit 44 includes a switch tube Q4, a resistor R14 and a resistor R24.
  • the integrated chip 100 controls the lighting and closing of the lighting lamp LED_W by controlling the switch tube Q4 to be turned on and off.
  • the integrated chip 100 includes a signal output module 21, which can control the switch tube Q4 by outputting the PWM_W signal.
  • the PWM_W signal is at a high level, the switch tube Q4 is turned on, and the lighting lamp LED_W is lit.
  • the PWM_W signal is When the level is low, the switching tube Q4 is not turned on, and the lighting lamp LED_W is turned off.
  • the integrated chip 100 is connected to the control terminal of the switch tube Q4, it can output high and low level signals through common IO pins.
  • the voltage of the state adjustment signal output by the signal output module in the integrated chip 100 is lower than the voltage of the circuit where the functional lamp 1 is located, and the function of controlling the high voltage by the low voltage is realized through the switch tube Q, and the switch tube Q can be a MOS tube or triode. Since the conduction rate of the MOS tube is higher than that of the triode, the switch tube connected to the status light needs to be controlled by a pulse width modulation signal.
  • the switch tube can be selected as a MOS tube, such as the red status light LED_R,
  • the switch tubes connected to the green status light LED_G and the blue light status light LED_B are NMOS; the voltage of the pulse width modulation signal output by the integrated chip 100 is divided into the Vgs acceptable voltage range of the NMOS through a resistor to prevent the MOS tube from being burned due to excessive voltage.
  • the switch tube Q4 in the switch unit 5 can be a triode, such as an NPN triode; the voltage output by the integrated chip 100 is divided into the tolerable voltage range of the Vbe of the NPN triode through the resistor R14 and the resistor R24 In order to prevent the triode from being burned due to excessive voltage.
  • the two ends of the switch tube Q in the switch unit 4 have a working voltage when it works.
  • the voltage at the output terminal of the voltage dividing unit 3 can be specifically between the voltage at both ends of the functional lamp 1 and the working voltage of the switch tube Q. and the voltage value after being divided.
  • the specific structure of the switch unit is not limited to that shown in FIG. 3 above, that is, the structure shown in FIG.
  • the specific structure can also adopt other structures that can realize the function of the switch unit well known to those skilled in the art, and it is not limited here.
  • At least one current limiting unit 5 corresponding to at least one functional lamp 1 is also included, and the positive pole of the functional lamp 1 is connected to the power supply through the current limiting unit 5 .
  • the current limiting unit 5 can limit the current in the circuit of the functional lamp 1 to prevent the functional lamp 1 from being burned due to excessive current, or prevent the functional lamp 1 from working under the condition of exceeding the maximum current for a long time, resulting in shortening the life of the functional lamp 1 .
  • the current limiting unit 5 includes a third resistor R3, the first end of the third resistor R3 is connected to the power supply VCC, and the second end of the third resistor R3 is connected to the anode of the functional lamp 1 .
  • the red state light LED_R, the green state light LED_G and the blue state light LED_B carry out current limiting through the current limiting unit 51, the current limiting unit 52 and the current limiting unit 53 respectively, and the current limiting unit 51 includes a resistor R31 1.
  • the current limiting unit 52 includes a resistor R32
  • the current limiting unit 53 includes a resistor R33, that is, the red status light LED_R, the green status light LED_G and the blue status light LED_B respectively carry out current limiting through the resistor R31, the resistor R32 and the resistor R33, which can make
  • the current of the LED light will remain unchanged every time it is lit, and the color of the LED light will remain unchanged. It is the same color every time it is displayed to the user, and will not affect the user's change of the charging state.
  • the lighting lamp LED_W is limited by the current limiting unit 54, and the current limiting unit 54 includes a resistor R34.
  • the specific structure of the current limiting unit is not limited to that shown in FIG. 5 above, that is, the structure shown in FIG. 5 is only a specific embodiment for realizing the function of the current limiting unit.
  • the specific structure of the current limiting unit can also adopt other structures well known by those skilled in the art that can realize the function of the current limiting unit, which is not limited here.
  • the voltage dividing unit 3 may include a fourth resistor R4 and a fifth resistor R5, the first end of the fourth resistor R4 is connected to the positive pole of the functional lamp 1, The second end of the fourth resistor R4 is connected to the acquiring module 22 , the first end of the fifth resistor R5 is connected to the second end of the fourth resistor R4 , and the second end of the fifth resistor R5 is grounded.
  • the voltage dividing unit 31 is connected to the anode of the red state light LED_R, and the resistors R41 and R51 in the voltage dividing unit 31 implement voltage division across both ends of the red light state light LED_R.
  • the voltage dividing unit 32 is connected to the anode of the green state light LED_G, The resistors R42 and R52 in the voltage dividing unit 32 realize the voltage division of the two ends of the green state light LED_G, so that the voltage across the green state light LED_G can be divided into a reasonable voltage range that the integrated chip 100 can receive, so that it will not be caused by If the voltage is too high, the integrated chip 100 will be burned; the voltage dividing unit 33 is connected to the anode of the blue state light LED_B, and the resistors R43 and R53 in the voltage dividing unit 33 realize the voltage division between the two ends of the blue light state light LED_B, so that the two ends of the blue light state light LED_B The voltage is divided into a reasonable voltage range that the integrated chip 100 can receive, so as to ensure that the integrated chip
  • the voltage dividing unit 34 is connected to the anode of the lighting lamp LED_W, and the resistors R44 and R54 in the voltage dividing unit 34 realize the voltage division of both ends of the lighting lamp LED_W, so that the voltage at both ends of the lighting lamp LED_W is divided to a reasonable voltage that the integrated chip 100 can receive Within the range, it is guaranteed that the integrated chip 100 will not be burned due to excessive voltage.
  • the output voltage at the output end of each voltage dividing unit acceptable to the integrated chip 100 may be about 5V.
  • the specific structure of the voltage dividing unit is not limited to that shown in FIG. 6 above, that is, the structure shown in FIG. 6 is only a specific embodiment for realizing the function of the voltage dividing unit.
  • the specific structure of the voltage dividing unit can also adopt other structures well known by those skilled in the art that can realize the function of the voltage dividing unit, which is not limited here.
  • the output end of the signal filtering unit 6 is connected with the acquisition module 22 .
  • the signal filtering unit 6 can filter the output voltage at the output terminal of the voltage dividing unit 3 .
  • the signal filter unit 6 may include a sixth resistor R6 and a filter capacitor C, the first end of the sixth resistor R6 is connected to the output end of the voltage dividing unit 3, and the second end of the sixth resistor R6 It is connected to the acquisition module 22 , the first end of the filter capacitor C is connected to the second end of the sixth resistor R6 , and the second end of the filter capacitor C is grounded.
  • the signal at the output end of the voltage dividing unit 3 is input into the acquisition module 22 through the sixth resistor R6, and the sixth resistor R6 can prevent the large current from flowing into the control unit 2 after the failure of the functional lamp 1, and burn the detection control unit 2 , play the role of current limiting.
  • filtering can be performed by a filter capacitor, and the filter capacitor C needs to be set close to the control unit 2 .
  • the output terminal of the voltage dividing unit 31 is connected to the signal filtering unit 61, and the resistor R61 and the filter capacitor C1 in the signal filtering unit 61 can protect the circuit and ensure that the single chip microcomputer 100 is connected to the voltage dividing unit.
  • the sampling function of the output voltage of the output terminal 31 is beneficial to the detection of the fault of the red status light LED_R;
  • the output terminal of the voltage dividing unit 32 is connected to the signal filter unit 62, and the resistor R62 and the filter capacitor C2 in the signal filter unit 62 can protect the circuit And ensure the sampling function of the output voltage of the output voltage of the voltage dividing unit 32 output terminals by the integrated chip 100, which is conducive to the detection of the green light status lamp LED_G fault;
  • the output terminal of the voltage dividing unit 33 is connected with the signal filter unit 63, and the The resistor R63 and the filter capacitor C3 can protect the circuit and ensure the sampling function of the integrated chip 100 on the output voltage of the output terminal of the voltage dividing unit 33 , which is beneficial to the detection of the failure of the blue status light LED_B.
  • the output terminal of the voltage dividing unit 34 is connected to the signal filtering unit 64 , the resistor R64 and the filter capacitor C4 in the signal filtering unit 64 can protect the circuit and ensure the sampling function of the output voltage of the output terminal of the voltage dividing unit 3 by the integrated chip 100 .
  • the specific structure of the signal filtering unit 6 is not limited to that shown in FIG. 8 above, that is, the structure shown in FIG. 8 is only a specific implementation of the function of the signal filtering unit 6
  • the specific structure of the signal filtering unit 6 can also adopt other structures well known by those skilled in the art that can realize the function of the signal acquisition module, which is not limited here.
  • the acquisition module 22 may also include sub-acquisition modules that correspond one-to-one with the functional lamps 1, and each sub-acquisition module may be specifically configured to: acquire the state adjustment signal corresponding to the functional lamp and the The output voltage of the output terminal of the voltage dividing unit corresponding to the function light.
  • the acquisition module may include sub-acquisition modules that correspond one-to-one to the function lights, and obtain the state adjustment signal and the output voltage of the output terminal of the voltage dividing unit through the sub-acquisition modules.
  • the signal filtering unit 61 when the integrated chip 100 is connected to the signal filtering unit as the acquisition module 22, the signal filtering unit 61, the signal filtering unit 62, the signal filtering unit 63 and the signal filtering unit 61, the signal filtering unit 62, and the signal The signal at the output of the filtering unit 64 .
  • the switching tube Q1, the switching tube Q2, and the switching tube Q3 cannot be turned on, and the red light
  • the status light LED_R, the green light status light LED_G and the blue light state light LED_B are turned off, and the pins R_ADC, R_ADC and R_ADC of the single-chip microcomputer 100 can obtain the voltages of the output terminals of the signal filter unit 61, the signal filter unit 62 and the signal filter unit 63 respectively, That is, the voltage after the two ends are divided when the three status lights are off, for example, 5.85V.
  • the signal obtained by the output terminal of the unit 61 is the sum of the conduction voltage drop of the red state light LED_R and the Vds of the MOS transistor after being divided by the voltage dividing unit, for example, the conduction voltage drop of the red state light LED_R and the Vds of the MOS transistor and half, while the working principle of the green status light LED_G and the blue status light LED_B is the same as that of the red status light LED_R.
  • the red status light LED_R circuit is connected.
  • the signal obtained by the pin R_ADC of 100 is 5.85V, then the judging module 23 judges that the red status light LED_R is broken, and the green status LED_G and blue status LED_B are the same as the red status LED_R.
  • the switch tube Q1 is turned on, and the red state light LED_R circuit is connected.
  • the signal obtained by the pin R_ADC is 0V. At this time, the judging module 23 judges that the red status light LED_R is short-circuited, and the green status light LED_G and blue status light LED_B are the same as the red status light LED_R.
  • the switch tube Q4 when the PWM_W signal outputs a high level, the switch tube Q4 is turned on, the lighting circuit is connected, the lighting LED_W is lit, and the pin W_ADC of the integrated chip 100 obtains the voltage at the output end of the signal filtering unit 64, namely The sum of the conduction voltage drop of the lighting lamp LED_W and the triode Vce is divided by the voltage divider unit, for example, half of the sum of the conduction voltage drop of the lighting lamp and the triode Vce; when the PWM_W signal outputs a low level, the switching tube Q4 does not conduction, the circuit of the lighting lamp LED_W is not connected, the lighting lamp LED_W is turned off, and the signal obtained by the pin W_ADC of the integrated chip 100 is the value obtained by the voltage dividing unit at both ends of the lighting lamp, for example, 5.85V; and when the PWM_W When the signal outputs a high level, the switch tube Q4 is turned on, and the lighting circuit is connected.
  • the judgment module 23 determines whether the illuminating lamp is short-circuited.
  • an embodiment of the present invention also provides an electric vehicle, including any electric vehicle charging stand provided in the above technical solutions.
  • the electric vehicle provided by the above embodiment of the invention includes at least one functional lamp 1, a control unit 2, and at least one voltage dividing unit 3 corresponding to the functional lamp 1;
  • the voltage is divided, and the control unit 2 can include a signal output module 21, an acquisition module 22, and a judgment module 23, wherein: the signal output module 21 can output a state adjustment signal corresponding to each functional lamp 1 according to the charging state of the vehicle to adjust For the working state of each functional lamp 1, the acquisition module 22 can obtain the corresponding state adjustment signal of each functional lamp 1 and the output voltage of the output terminal of each voltage dividing unit 3, and the judgment module 23 can be configured to control its corresponding state adjustment signal.
  • an embodiment of the present invention also provides a detection method for an electric vehicle charging stand, the electric vehicle charging stand includes at least one functional lamp and at least one voltage dividing unit connected to at least one of the functional lamps in a one-to-one correspondence , as shown in Figure 10, the specific steps may include:
  • S1001 Output a state adjustment signal corresponding to each of the function lights according to the charging state of the vehicle;
  • S1002 Obtain a state adjustment signal corresponding to each of the functional lamps and an output voltage at an output terminal of each of the voltage dividing units;
  • S1003 When the state adjustment signal is a lighting signal for controlling the lighting of the corresponding functional lamp, determine whether the functional lamp is faulty according to the output voltage of the output terminal of the voltage dividing unit corresponding to it.
  • a state adjustment signal corresponding to each of the function lamps is output, and then the state adjustment signal and the output voltage of the output terminal of the voltage dividing unit are obtained; after that, in the state
  • the adjustment signal is a signal for controlling the lighting of the function lamp
  • the determining whether there is a fault in the functional lamp according to the output voltage output by the corresponding voltage dividing unit includes:
  • the determining that the functional lamp is faulty includes:
  • the output voltage is equal to a second preset voltage, it is determined that the functional lamp is disconnected, wherein the second preset voltage is equal to the voltage value of the output terminal of the voltage dividing unit when the functional lamp is turned off.
  • the output of a state adjustment signal corresponding to each of the functional lamps includes:
  • the third pulse width modulation signal is the second pulse width modulation signal and the first pulse
  • the width modulation signals are arranged alternately; or,
  • the duty ratio of the fourth pulse width modulation signal repeats the process of increasing first and then decreasing successively.
  • the outputting a state adjustment signal corresponding to each of the functional lights includes:
  • a low-level signal is output to a switch unit connected to the illuminating lamp to control the illuminating lamp to be turned off.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明涉及电动汽车技术领域，公开了一种电动汽车充电座、其检测方法及电动汽车，该电动汽车充电座，包括至少一个功能灯、控制单元以及与至少一个功能灯一一对应的至少一个分压单元；每个分压单元的输入端与其对应的功能灯连接；控制单元包括信号输出模块、获取模块和判断模块，信号输出模块配置为：根据汽车充电状态，输出与每个功能灯对应的状态调节信号，以调节工作状态；获取模块配置为：获取每个功能灯对应的状态调节信号和每个分压单元输出端的输出电压；判断模块配置为：在状态调节信号为控制其对应的功能灯点亮的信号时，根据其对应的分压单元输出端的输出电压，确定功能灯是否存在故障。该电动汽车充电座能够检测出功能灯是否出现故障。

Description

一种电动汽车充电座、其检测方法及电动汽车
本申请要求2021年9月30日递交的申请号为202111159010.6,发明名称为“一种电动汽车充电座、其检测方法及电动汽车”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电动汽车技术领域，特别涉及一种电动汽车充电座、其检测方法及电动汽车。
背景技术
随着全球传统汽车的数量大幅增加，环境受到很大污染，能源供给也日益枯竭，新能源汽车越来越成为汽车行业的发展方向，电动汽车需要充电，充电座成为了车上必须要匹配部分，也必将需要在充电座上配有能够指示充电状态的指示灯，和能够为充电提供照明作用的照明灯。但是，当指示灯或者照明灯所在电路短路或者断路时，则可能导致指示灯状态指示错误以及照明灯无法照明，给汽车充电带来不便。
发明内容
本发明提供了一种电动汽车充电座、其检测方法及电动汽车，上述电动汽车充电座能够检测出功能灯是否出现故障。
第一方面，本发明实施例提供了一种电动汽车充电座，包括至少一个功能灯、控制单元以及与至少一个所述功能灯一一对应的至少一个分压单元；
每个所述分压单元的输入端与其对应的所述功能灯连接，以对所述功能灯两端的电压进行分压；
所述控制单元包括信号输出模块、获取模块和判断模块，其中：
所述信号输出模块配置为：根据汽车充电状态，输出与每个所述功能灯对应的状态调节信号，以调节每个所述功能灯的工作状态；
所述获取模块配置为：获取每个所述功能灯对应的状态调节信号和每个所述分压单元输出端的输出电压；
所述判断模块配置为：在所述状态调节信号为控制其对应的所述功能灯点亮的信号 时，根据其对应的所述分压单元输出端的输出电压，确定所述功能灯是否存在故障。
上述电动汽车充电座中，包括至少一个功能灯、控制单元、与功能灯一一对应的至少一个分压单元；分压单元可以对其对应的功能灯两端的电压进行分压，控制单元可以包括信号输出模块、获取模块和判断模块，其中，信号输出模块可以根据汽车充电状态输出与每个功能灯对应的状态调节信号，以调节每个所述功能灯的工作状态，获取模块可以获取每个功能灯对应的状态调节信号和每个分压单元输出端的输出电压，判断模块可以在状态调节信号为控制其对应的功能灯点亮的信号时，根据其对应的分压单元输出端的输出电压，确定功能灯是否存在故障，在功能灯存在故障时能够上报汽车的管理系统，可以告知用户出现故障，提醒用户对故障的功能灯进行维修，避免对汽车充电带来不便。
可选地，所述判断模块具体配置为：
判断所述输出电压是否等于第一预设电压，其中，所述第一预设电压等于所述功能灯的导通压降被所述分压单元分压后的数值；
若是，判定所述功能灯无故障；
若否，判定所述功能灯故障。
上述电动汽车充电座中，若输出电压不为功能灯的导通压降被分压单元分压后的数值，则判断模块则判定功能灯故障，可以对故障情况进行上报，提醒用户功能灯故障，需要进行维修，避免对汽车充电带来不便。
可选地，在判定所述功能灯故障时，所述判断模块还具体配置为：
若所述输出电压等于零，判定所述功能灯短路；
若所述输出电压等于第二预设电压，判定所述功能灯断路，其中，所述第二预设电压等于所述功能灯关闭时所述分压单元输出端的电压值。
上述电动汽车充电座中，能够对故障的种类进行检测，使得用户清楚故障种类，方便更好的进行维修。
可选地，还包括与至少一个所述功能灯一一对应的至少一个开关单元；
每个所述功能灯的正极与电源连接，每个所述功能灯的负极通过对应的所述开关单元接地，每个所述开关单元的控制端与所述信号输出模块连接，以接收对应的所述状态调节信号。
上述电动汽车充电座中，信号输出模块输出的状态调节信号可以通过控制开关单元的导通和关闭，能够实现功能灯的点亮和关灭。
可选地，所述至少一个功能灯包括用于指示充电状态的至少一个状态灯，和/或，用于为充电时插拔充电枪头提供照明的照明灯；
当所述功能灯为所述状态灯时，所述状态调节信号为脉冲宽度调制信号；
当所述功能灯为所述照明灯时，所述状态调节信号为电平信号。
上述电动汽车充电座中，状态灯能够对充电汽车充电状态进行指示，照明灯能够在插拔充电枪头时进行照明，方便用户操作。
可选地，至少一个所述状态灯包括用于组成一个充电状态指示灯的红色状态灯、绿色状态灯和蓝色状态灯。
上述电动汽车充电座中，可以有三基色的状态灯组成一个充电状态指示灯，能够通过调整充电状态指示灯的颜色以及工作状态，指示电动汽车的不同的充电状态。
可选地，若所述功能灯为至少一个所述状态灯，在输出与每个所述功能灯对应的状态调节信号时，所述信号输出模块具体配置为：
向与所述状态灯连接的开关单元输出第一脉冲宽度调制信号，控制所述状态灯处于关灭状态，所述第一脉冲宽度调制信号的占空比为零；或者，
向与所述状态灯连接的开关单元输出第二脉冲宽度调制信号，控制所述状态灯处于常亮状态，所述第二脉冲宽度调制信号的占空比不为零且为固定值；或者，
向与所述状态灯连接的开关单元输出第三脉冲宽度调制信号，控制所述状态灯处于闪烁状态，所述第三脉冲宽度调制信号为所述第二脉冲宽度调制信号与所述第一脉冲宽度调制信号交替排列；或者，
向与所述状态灯连接的开关单元输出第四脉冲宽度调制信号，控制所述状态灯处于呼吸状态，所述第四脉冲宽度调制信号的占空比重复先依次递增后依次递减的过程。
上述电动汽车充电座中，能够通过信号输出模块输出不同的脉冲宽度调制信号，调整状态灯的工作状态，实现状态灯的不同的工作模式。
可选地，若所述功能灯为照明灯，在输出与每个所述功能灯对应的状态调节信号时，所述信号输出模块具体配置为：
向与所述照明灯连接的开关单元输出高电平信号，控制所述照明灯常亮；或者，
向与所述照明灯连接的开关单元输出低电平信号，控制所述照明灯关灭。
上述电动汽车充电座中，能够通过信号输出模块输出高电平信号和低电平信号，控制照明灯常亮或者关灭。
可选地，所述开关单元包括开关管、第一电阻和第二电阻；
所述开关管的第一端与所述功能灯的负极连接，所述开关管的第二端接地；所述第一电阻的第一端与所述信号输出模块连接，所述第一电阻的第二端与所述开关管的控制端连接，所述第二电阻的第一端与所述开关管的控制端连接，所述第二电阻的第二端接地。
上述电动汽车充电座中，信号输出模块输出的状态调节信号可以通过控制开关管的导通和关闭，能够实现功能灯的点亮和关灭，第一电阻和第二电阻能够对信号输出模块输出的状态调节信号分压到开关管可承受电压范围内，能够防止因状态控制信号的电压过高烧毁开关管。
可选地，还包括与至少一个所述功能灯一一对应的至少一个限流单元，所述功能灯的正极通过所述限流单元与电源连接。
上述电动汽车充电座中，限流单元能够对功能灯电路中的电流进行限制，防止因电流过大烧毁功能灯，或者避免功能灯长期处于超过最大电流情况下工作，致使功能灯的寿命缩短。
可选的，每个所述限流单元包括第三电阻，所述第三电阻的第一端与电源连接，所述第三电阻的第二端与所述功能灯的正极连接。
上述电动汽车充电座中，第三电阻能够对功能灯电路中的电流进行限制，保护功能灯。
可选地，每个所述分压单元包括第四电阻和第五电阻，所述第四电阻的第一端与所述功能灯的正极连接，所述第四电阻的第二端与所述获取模块连接，所述第五电阻的第一端与所述第四电阻的第二端连接，所述第五电阻的第二端接地。
上述电动汽车充电座中，分压电路能够对功能灯两端的电压分压，保护电路。
可选地，还包括与至少一个所述分压单元一一对应的至少一个信号过滤单元，用于过滤所述分压单元输出端的输出电压，每个所述信号过滤单元的输入端与对应的所述分压单元的输出端连接，每个所述信号过滤单元的输出端与所述获取模块连接。
上述电动汽车充电座中，信号过滤单元可以对分压单元的输出端输出的电压进行滤波，保证获取模块获取的信号质量。
可选地，每个所述信号过滤单元包括第六电阻和滤波电容，所述第六电阻的第一端与所述分压单元的输出端连接，所述第六电阻的第二端与所述获取模块连接，所述滤波电容的第一端与所述第六电阻的第二端连接，所述滤波电容的第二端接地。
上述电动汽车充电座中，第六电阻能够防止功能灯故障发生后大电流流入控制单元， 烧毁控制单元，起到限流作用；滤波电容能够进行滤波，保证控制单元的获取模块的采样功能，减小采样的波动。
可选地，所述获取模块包括与所述功能灯一一对应的子获取模块，每个所述子获取模块配置为：
获取与所述功能灯对应的所述状态调节信号和与所述功能灯对应的所述分压单元输出端的输出电压。
上述电动汽车充电座中，获取模块可以包括与功能灯一一对应的子获取模块，通过子获取模块对状态调节信号和分压单元输出端的输出电压进行分别获取。
第二方面，本发明还提供一种电动汽车，包括上述技术方案中提供的任意一种电动汽车充电座。
第三方面，本发明还提供一种电动汽车充电座的检测方法，所述电动汽车充电座包括至少一个功能灯以及与至少一个所述功能灯一一对应连接的至少一个分压单元，所述检测方法包括：
根据汽车充电状态，输出与每个所述功能灯对应的状态调节信号；
获取每个所述功能灯对应的状态调节信号和每个所述分压单元输出端的输出电压；
在所述状态调节信号为控制其对应的所述功能灯点亮的点亮信号时，根据其对应的所述分压单元输出端的输出电压，确定所述功能灯是否存在故障。
可选地，所述根据其对应的所述分压单元输出的输出电压，确定所述功能灯是否存在故障，包括：
判断所述输出电压是否等于第一预设电压，其中，所述第一预设电压等于所述功能灯的导通压降被所述分压单元分压后的数值；
若是，判定所述功能灯无故障；
若否，判定所述功能灯故障。
可选地，所述判定所述功能灯故障，包括：
若所述输出电压等于零，判定所述功能灯短路；
若所述输出电压等于第二预设电压，判定所述功能灯断路，其中，所述第二预设电压等于所述功能灯关闭时所述分压单元输出端的电压值。
可选地，若所述功能灯为至少一个状态灯，所述输出与每个所述功能灯对应的状态调节信号，包括：
向与所述状态灯连接的开关单元输出第一脉冲宽度调制信号，控制所述状态灯处于 关灭状态，所述第一脉冲宽度调制信号的占空比为零；或者，
向与所述状态灯连接的开关单元输出第二脉冲宽度调制信号，控制所述状态灯处于常亮状态，所述第二脉冲宽度调制信号的占空比不为零且为固定值；或者，
向与所述状态灯连接的开关单元输出第三脉冲宽度调制信号，控制所述状态灯处于闪烁状态，所述第三脉冲宽度调制信号为所述第二脉冲宽度调制信号与所述第一脉冲宽度调制信号交替排列；或者，
向与所述状态灯连接的开关单元输出第四脉冲宽度调制信号，控制所述状态灯处于呼吸状态，所述第四脉冲宽度调制信号的占空比重复先依次递增后依次递减的过程。
可选地，若所述功能灯为照明灯，所述输出与每个所述功能灯对应的状态调节信号，包括：
向与所述照明灯连接的开关单元输出高电平信号，控制所述照明灯常亮；或者，
向与所述照明灯连接的开关单元输出低电平信号，控制所述照明灯关灭。
本发明有益效果如下：
本发明实施例提供的一种电动汽车充电座、其检测方法及电动汽车，包括至少一个功能灯、控制单元、与功能灯一一对应的至少一个分压单元；分压单元可以对其对应的功能灯两端的电压进行分压，控制单元可以包括信号输出模块、获取模块和判断模块，其中，信号输出模块可以根据汽车充电状态输出与每个功能灯对应的状态调节信号，以调节每个所述功能灯的工作状态，获取模块可以获取每个功能灯对应的状态调节信号和每个分压单元输出端的输出电压，判断模块可以在状态调节信号为控制其对应的功能灯点亮的信号时，根据其对应的分压单元输出端的输出电压，确定功能灯是否存在故障，在功能灯存在故障时能够上报汽车的管理系统，可以告知用户出现故障，提醒用户对故障的功能灯进行维修，避免对汽车充电带来不便。
附图说明
图1为本发明实施例提供的一种电动汽车充电座的结构示意图；
图2为本发明实施例提供的另一种电动汽车充电座的结构示意图；
图3为本发明实施例提供的另一种电动汽车充电座的结构示意图；
图4为本发明实施例提供的另一种电动汽车充电座的结构示意图；
图5为本发明实施例提供的另一种电动汽车充电座的结构示意图；
图6为本发明实施例提供的另一种电动汽车充电座的结构示意图；
图7为本发明实施例提供的另一种电动汽车充电座的结构示意图；
图8为本发明实施例提供的另一种电动汽车充电座的结构示意图；
图9为本发明实施例提供的另一种电动汽车充电座的结构示意图；
图10为本发明实施例提供的一种电动汽车充电座的检测方法的流程图。
【附图标记说明】
1、功能灯；
2、控制单元；
21、信号输出模块；
22、获取模块；
23、判断模块；
3、31、32、33、34、分压单元；
4、41、42、43、44、开关单元；
5、51、52、53、54、限流单元；
6、61、62、63、64、信号过滤单元；
100、集成芯片。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参考图1，本发明提供一种电动汽车充电座，包括至少一个功能灯1、控制单元2、与功能灯1一一对应的至少一个分压单元3；
每个分压单元3的输入端与其对应的功能灯1连接，以对功能灯1两端的电压进行分压；
控制单元2可以包括信号输出模块21、获取模块22和判断模块23，其中：
信号输出模块21配置为：根据汽车充电状态，输出与每个功能灯1对应的状态调节信号，以调节每个功能灯1的工作状态；
获取模块22配置为：获取每个功能灯1对应的状态调节信号和每个分压单元3输出端的输出电压；
判断模块23配置为：在状态调节信号为控制其对应的功能灯1点亮的信号时，根据其对应的分压单元3输出端的输出电压，确定功能灯1是否存在故障。
上述发明实施例提供的电动汽车充电座中，包括至少一个功能灯1、控制单元2以及与功能灯1一一对应的至少一个分压单元3；分压单元3可以对其对应的功能灯1两端的电压进行分压，控制单元2可以包括信号输出模块21、获取模块22和判断模块23，其中：信号输出模块21可以根据汽车充电状态，输出与每个功能灯1对应的状态调节信号，以调节每个功能灯1的工作状态，获取模块22可以获取每个功能灯1对应的状态调节信号和每个分压单元3输出端的输出电压，判断模块23配置可以在状态调节信号为控制其对应的功能灯1点亮的信号时，根据其对应的分压单元3输出端的输出电压，确定功能灯1是否存在故障，在功能灯1存在故障时能够上报汽车的管理系统，可以告知用户出现故障，提醒用户对故障的功能灯1进行维修，避免对汽车充电带来不便。
在一种可能的实施方式中，上述至少一个功能灯1可以包括用于指示充电状态的至少一个状态灯，和/或，用于为充电时插拔枪头提供照明的照明灯。状态灯能够对充电汽车充电状态进行指示，照明灯能够在插拔充电枪头时进行照明，方便用户操作。其中，上述状态灯和照明灯可以为LED灯，也可以为其它实施方式，在这里不做限制。
上述汽车充电状态可以为需要充电、充电中、充电完毕、插拔充电枪头等，信号输出模块21根据汽车充电状态，可以输出用于调节每个功能灯1工作状态的状态调节信号，使得功能灯1具有不同的工作状态，实现不同的功能。上述状态灯的工作状态可以包括点亮、关灭和亮度等；上述照明灯的工作状态可以包括点亮和关灭等。
具体地，至少一个功能灯1可以包括相互配合的多个不同颜色的状态灯，例如，如图9所示，相互配合的红光状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B，可以实现RGB三基色配比，组成一个充电状态指示灯。信号输出模块21根据汽车充电状态，输出不同的状态调节信号，通过调节三基色状态灯的点亮、关灭和亮度，可以调节充电状态指示灯的颜色、亮度、工作模式(如常亮、关灭、闪烁、呼吸等)等。
具体地，如图9所述，至少一个功能灯1还可以包括照明灯LED_W，照明灯LED_W可以为白光灯，当在插拔充电枪头时，状态控制单元2可以输出用于控制照明灯LED_W点亮的状态调节信号，使得照明灯LED_W起到照明的作用。
具体地，上述控制单元2可以为一个集成芯片，例如，单片机等。控制单元2中包括信号输出模块21、获取模块22和判断模块23。
上述发明实施例中，上述分压单元3能够将功能灯1两端的电压分压到控制单元2 可以接收的合理电压范围内，保障不会因电压过高烧毁控制单元2，保护开关单元4。例如控制单元2接收的分压单元3输出端的输出电压可以为功能灯1两端电压的一半，能够对作为控制单元2的集成芯片进行保护。
本发明实施例提供的电动汽车充电座中，控制单元2中的判断模块23可以具体用于：
判断输出电压是否等于第一预设电压，第一预设电压等于功能灯1的导通压降被分压单元3分压后的数值；
若是，则判定功能灯1无故障；
若否，则判定功能灯1故障。
具体地，当信号输出模块21输出的状态调节信号为用于控制其对应的功能灯1点亮的信号时，若功能灯1无故障，则功能灯1点亮，功能灯1的两端具有导通压降，而当获取模块22接收到输出电压为导通压降被分压单元3分压后的数值时，判断模块23则判定功能灯1无故障，正常工作，若获取模块22接收到的输出电压不为功能灯1的导通压降被分压单元3分压后的数值，则判断模块23判定功能灯1故障，可以对故障情况进行上报，提醒用户功能灯1故障，需要进行维修，避免对汽车充电带来不便。如图9所示，控制单元可以对电动汽车充电座上的红光状态灯LED_R、绿光状态灯LED_G、蓝光状态灯LED_B以及照明灯LED_W分别进行检测。
上述发明实施例提供的电动汽车充电座，在判定功能灯1故障时，控制单元2中的判断模块23可以具体用于：
若输出电压等于零，则判定功能灯1短路；
若输出电压等于第二预设电压，则判定功能灯1断路，第二预设电压等于功能灯1关闭时分压单元3输出端的电压值。
具体地，当信号输出模块21输出的状态调节信号为用于控制功能灯1点亮的信号时，若功能灯1无故障，则功能灯1点亮，若功能灯1存在故障，则功能灯1不能点亮，影响汽车充电，例如，若状态灯故障则不能正确指示汽车的充电状态，若照明灯LED_W故障则不能在插拔充电枪头时实现照明。在状态调节信号为控制功能灯点亮的信号时，若获取模块22接收到的输出电压为零时，则说明功能灯1的两端无电压差，则判断模块23判定功能灯1具有短路故障；而在状态调节信号为控制功能灯点亮的信号时，若获取模块22接收到的输出电压等于功能灯1关闭时分压单元3输出端的电压值，则说明功能灯1未导通，则判断模块23判定功能灯1具有断路故障。控制单元对故障的种类进行检测，能够使得用户清楚故障种类，方便更好的进行维修。
本发明实施例提供的电动汽车充电座中，如图2所示，还包括与至少一个功能灯1一一对应的至少一个开关单元4；
每个功能灯1的正极与电源VCC连接，每个功能灯1的负极通过开关单元4接地，开关单元4的控制端与信号输出模块21连接，开关单元4的控制端用于接收状态调节信号。信号输出模块输出的状态调节信号可以通过控制开关单元4的导通和关闭，能够实现功能灯1的点亮和关灭。
例如，如图9所示，组成一个充电状态指示灯的红光状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B的正极均与电源连接，电源的电压可以为12V；红光状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B的负极分别通过开关单元41、开关单元42、以及开关单元43接地，信号输出模块21输出的状态调节信号通过对开关单元41、开关单元42和开关单元43的控制端的控制，实现对红光状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B的工作状态的调节。照明灯LED_W的正极与电源连接，电源的电压可以为12V；照明灯LED_W的负极通过开关单元44接地，信号输出模块21通过对开关单元44的控制能够实现对照明灯LED_W的工作状态的调节。
具体地，信号输出模块21调节功能灯1的状态时，若功能灯为状态灯时，状态调节信号可以为脉冲宽度调制信号(PWM)，可以通过调整脉冲宽度调制信号的占空比调整状态灯的关灭、点亮和亮度，例如，信号输出模块21可以具体配置为：
向与状态灯连接的开关单元输出第一脉冲宽度调制信号，控制状态灯处于关灭状态，第一脉冲宽度调制信号的占空比为零；或者，
向与状态灯连接的开关单元输出第二脉冲宽度调制信号，控制状态灯处于常亮状态，第二脉冲宽度调制信号的占空比不为零且为固定值；或者，
向与状态灯连接的开关单元输出第三脉冲宽度调制信号，控制状态灯处于闪烁状态，第三脉冲宽度调制信号为第二脉冲宽度调制信号与第一脉冲宽度调制信号交替排列；或者，
向与状态灯连接的开关单元输出第四脉冲宽度调制信号，控制状态灯处于呼吸状态，第四脉冲宽度调制信号的占空比重复先依次递增后依次递减的过程。
其中，在信号输出模块21调节状态灯的工作状态时，能够通过调整脉冲宽度调制信号的占空比的变化，进而调节状态灯不同的工作状态。在脉冲宽度调制信号具有高电平输出信号的时刻，均具有状态灯点亮的过程，例如，上述第二脉冲宽度调制信号、第三脉冲宽度调制信号和第四脉冲宽度调制信号就均具有状态灯点亮的过程，在状态灯点亮 的过程中，判断模块23能够对状态灯是否故障进行判断。
在实际应用中，汽车的充电状态不同，红光状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B组成的充电状态指示灯对应的发光状态不同。具体地，汽车的充电状态可以有睡眠模式、充电故障、充电完成、充电中、导引匹配以及等待充电等状态。
当汽车的充电状态为睡眠模式时，信号输出模块21可以控制红光状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B均关灭，使得充电状态指示灯关灭，以指示睡眠模式；
当汽车的充电状态为充电故障时，信号输出模块21可以控制红光状态灯LED_R闪烁、绿光状态灯LED_G和蓝光状态灯LED_B均关灭，使得充电状态指示灯显示红光闪烁，以指示充电故障；
当汽车的充电状态为充电中时，信号输出模块21可以控制红光状态灯LED_R和绿光状态灯LED_G关灭、蓝光状态灯LED_B常亮，使得充电状态指示灯蓝光常亮，以使充电状态指示灯显示蓝光常亮，以指示充电完成状态；
当汽车的充电状态为充电完成时，信号输出模块21可以控制红光状态灯LED_R和蓝光状态灯LED_B关灭、绿光状态灯LED_G常亮，使得充电状态指示灯显示绿光常亮，以指示充电完成；
当汽车的充电状态为等待充电，信号输出模块21可以控制红光状态灯LED_R和绿光状态灯LED_G同步呼吸、蓝光状态灯LED_B关灭，使得充电状态指示灯显示黄光呼吸，以指示等待充电状态；例如，信号输出模块21向与红光状态灯LED_R连接的开关单元41的控制端和与绿光状态灯LED_G连接的开关单元42输出相同的第四脉冲调制信号，该第四脉冲调制信号控制状态灯呼吸的周期可以为1s，在此周期内，第四脉冲调制信号的占空比可以由100％逐渐降低到5％，使得红光状态灯LED_R和绿光状态灯LED_G的亮度逐渐由大到小，进而在此周期内充电状态指示灯显示黄光的亮度由大到小变化的呼吸状态。
当汽车的充电状态为导引匹配时，信号输出模块21可控制蓝光状态灯LED_B呼吸、红光状态灯LED_R和绿光状态灯LED_G关灭，使得充电状态指示灯显示蓝光呼吸，以指示导引匹配。例如，信号输出模块21向与蓝光状态灯LED_B连接的开关单元43的控制端输出第四脉冲调制信号，该第四脉冲调制信号控制状态灯呼吸的周期可以为1s，在此周期内，前300ms第四脉冲调制信号的占空比可以由5％逐渐增大到100％，使得蓝光状态灯LED_B的亮度逐渐由小到大，中间400ms第四脉冲调制信号的占空比可以保持 100％不变，后300ms第四脉冲调制信号的占空比可以由100％逐渐降低到5％，使得蓝光状态灯LED_B的亮度逐渐由大到小，进而在此周期内，充电状态指示灯显示蓝光的亮度先由小变大再由大到小变化的呼吸状态。
当然可以理解，本发明并不对第四脉冲调制信号的占空比的变化规律进行限制，可以根据实际选择进行设定。例如，在其他一些实施例中，第四脉冲调制信号控制状态灯呼吸的周期内，可以包括第四脉冲调制信号的占空比逐渐增大的第一阶段、第四脉冲调制信号的占空比保持不变的第二阶段，以及第四脉冲调制信号的占空比逐渐减小的第三阶段，其中，第一阶段、第二阶段以及第三阶段的时长可以根据周期时长进行合理分配。在第一阶段中，第四脉冲调制信号的占空比可以从10％或20％或其他任何合适的百分比例逐渐增大到85％或90％或其他任何合适的百分比例；在第二阶段中，第四脉冲调制信号的占空比可以保持在第二阶段中第四脉冲调制信号的占空比达到的百分比例80％或85％或90％不变；在第三阶段中，第四脉冲调制信号的占空比可以从80％或85％或90％或其他任何合适的百分比例逐渐降低到5％或10％或其他任何合适的百分比例。
具体地，根据汽车的充电状态，充电状态指示灯还可以具有其它状态，在这里不对充电状态对应的状态灯的工作状态进行限制，可以根据实际选择进行设定。
具体地，信号输出模块21调节功能灯1的状态时，若功能灯1为照明灯，状态调节信号可以为高低电平信号，信号输出模块21可以具体配置为：
向与照明灯连接的开关单元输出高电平信号，控制照明灯常亮，以用于照明；或者，
向与照明灯连接的开关单元输出低电平信号，控制照明灯关灭。
其中，在信号输出模块21调节照明灯的工作状态时，能够通过高低电平的变化，进而调节功能灯照明或者关灭。在状态调节信号为高电平时，照明灯点亮，此时判断模块23能够对照明灯是否故障进行判断。
上述发明实施例提供的电动汽车充电座中，如图3所示，开关单元4可以包括开关管Q、第一电阻R1和第二电阻R2；开关管Q的第一端与功能灯1的负极连接，开关管Q的第二端接地；第一电阻R1的第一端与信号输出模块21连接，第一电阻R1的第二端与开关管Q的控制端连接，第二电阻R2的第一端与开关管Q的控制端连接，第二电阻R2的第二端接地。信号输出模块21输出的状态调节信号可以通过控制开关管Q的导通和关闭，能够实现功能灯1的点亮和关灭，第一电阻R1和第二电阻R2能够对信号输出模块21输出的状态调节信号分压到开关管Q可承受电压范围内，能够防止因状态调节信号的电压过高烧毁开关管Q，并且不能分压太低，防止开关管Q没有完全开启影响 导通电流。
在具体地实施方式中，如图9所示，开关单元41包括开关管Q1、电阻R11和电阻R21，信号输出模块21通过控制开关管Q1的导通和关闭，控制红光状态灯LED_R的点亮和关闭；开关单元42包括开关管Q2、电阻R12、和电阻R22，信号输出模块21通过控制开关管Q2的导通和关闭，控制绿光状态灯LED_G的点亮和关闭；开关单元43包括开关管Q3、电阻R13和电阻R23，信号输出模块21通过控制开关管Q的导通和关闭，控制绿光状态灯LED_G的点亮和关闭。
具体地，集成芯片100作为控制单元2，可以通过输出PWM_R信号、PWM_G信号和PWM_B信号分别对开关管Q1、开关管Q2和开关管Q3进行控制，PWM_R信号、PWM_G信号、PWM_B信号分别通过PWM输出占空比调节开关管Q1、开关管Q2和开关管Q3的工作状态，通过调整PWM_R信号、PWM_G信号、PWM_B的PWM输出占空比可以调节由红光状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B组成的充电状态指示灯的亮度、颜色和工作模式(如按频率闪烁、呼吸、点亮、关灭等)。例如，当PWM_R信号、PWM_G信号、PWM_B信号的PWM输出占空比为0时，开关管Q1、开关管Q2以及开关管Q3不导通，则三个状态灯关灭，则组成的充电状态指示灯关灭；当PWM_R信号、PWM_G信号、PWM_B信号的PWM输出占空比不为零时，开关管Q1、开关管Q2、以及开关管Q3导通，则三个状态灯组成的充电状态指示灯点亮。其中，集成芯片100与开关管Q1、Q2以及Q3的控制端连接时，可以通过PWM输出引脚输出PWM信号。
在具体地实施方式中，如图9所示，开关单元44包括开关管Q4、电阻R14和电阻R24，集成芯片100通过控制开关管Q4的导通和关闭，控制照明灯LED_W的点亮和关闭；具体地，集成芯片100包括信号输出模块21，可以通过输出PWM_W信号对开关管Q4进行控制，当PWM_W信号为高电平时，开关管Q4导通，则照明灯LED_W点亮，当PWM_W信号为低电平时，开关管Q4不导通，则照明灯LED_W关灭。集成芯片100与开关管Q4的控制端连接时，可以通过普通IO引脚输出高低电平信号。
在一种具体地实施方式中，集成芯片100中信号输出模块输出的状态调节信号电压低于功能灯1所处电路的电压，通过开关管Q实现低压控制高压的功能，开关管Q可以为MOS管或三极管。由于MOS管的导通速率高于三极管，与状态灯连接的开关管需要通过脉冲宽度调制信号控制，当功能灯1为状态灯时，可以选择开关管为MOS管，例如与红色状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B连接的开关管为 NMOS；集成芯片100输出的脉冲宽度调制信号的电压经过电阻分压到NMOS的Vgs可承受电压范围，防止因电压过高烧毁MOS管。而当状态灯为照明灯LED_W时，开关单元5中的开关管Q4可以为三极管，例如NPN三极管；集成芯片100输出的电压经过电阻R14和电阻R24分压到NPN三极管的Vbe的可承受电压范围内，防止因电压过高烧毁三极管。
其中，开关单元4中的开关管Q工作时两端具有工作电压，当开关管Q导通时，分压单元3输出端的电压具体可以为功能灯1两端的电压与开关管Q的工作电压之和被分压后的电压值。
需要说明的是，可选地，在本发明实施例中，开关单元的具体结构并不限于上述图3所示，即图3所示的结构只是实现开关单元功能的一个具体实施例，开关单元的具体结构还可以采用本领域技术人员所熟知的其他可以实现开关单元功能的结构，在此并不限定。
上述发明实施例提供的电动汽车充电座中，如图4所示，还包括与至少一个功能灯1一一对应的至少一个限流单元5，功能灯1的正极通过限流单元5与电源连接。限流单元5能够对功能灯1电路中的电流进行限制，防止因电流过大烧毁功能灯1，或者避免功能灯1长期处于超过最大电流情况下工作，致使功能灯1的寿命缩短。
具体地，如图5所示，限流单元5包括第三电阻R3，第三电阻R3的第一端与电源VCC连接，第三电阻R3的第二端与功能灯1的正极连接。
例如，如图9所示，红色状态灯LED_R、绿色状态灯LED_G和蓝色状态灯LED_B分别通过限流单元51、限流单元52和限流单元53进行限流，限流单元51包括电阻R31、限流单元52包括电阻R32、限流单元53包括电阻R33，即红光状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B分别通过电阻R31、电阻R32和电阻R33进行限流，能够使得LED灯的电流每次点亮时会保持不变，LED灯的彩色就会不变，每次给用户展示都是同一色彩，不会影响用户对充电状态的变换。照明灯LED_W通过限流单元54进行限流，限流单元54包括电阻R34。
需要说明的是，可选地，在本发明实施例中，限流单元的具体结构并不限于上述图5所示，即图5所示的结构只是实现限流单元功能的一个具体实施例，限流单元的具体结构还可以采用本领域技术人员所熟知的其他可以实现限流单元功能的结构，在此并不限定。
上述发明实施例提供的电动汽车充电座中，如图6所示，分压单元3可以包括第四 电阻R4和第五电阻R5，第四电阻R4的第一端与功能灯1的正极连接，第四电阻R4的第二端与获取模块22连接，第五电阻R5的第一端与第四电阻R4的第二端连接，第五电阻R5的第二端接地。通过调整分压单元3中第四电阻R4和第五电阻R5的阻值比，则可以产生一个比较合理的电阻分压值，使得功能灯1两端电压分压到控制单元2可以接受的合理电压范围内，保障不会因电压过高烧毁控制单元2。
在具体地实施方式中，如图9所示，分压单元31与红光状态灯LED_R的正极连接，分压单元31中的电阻R41和电阻R51实现对红光状态灯LED_R两端进行分压，使得红光状态灯LED_R两端的电压分压到集成芯片100可以接收的合理电压范围内，保证不会因电压过高烧毁集成芯片100；分压单元32与绿光状态灯LED_G的正极连接，分压单元32中的电阻R42和电阻R52实现对绿光状态灯LED_G两端的分压，使得绿光状态灯LED_G两端的电压分压到集成芯片100可以接收的合理电压范围内，保证不会因电压过高烧毁集成芯片100；分压单元33与蓝光状态灯LED_B的正极连接，分压单元33中的电阻R43和电阻R53实现对蓝光状态灯LED_B两端的分压，使得蓝光状态灯LED_B两端的电压分压到集成芯片100可以接收的合理电压范围内，保证不会因电压过高烧毁集成芯片100。分压单元34与照明灯LED_W的正极连接，分压单元34中的电阻R44和电阻R54实现对照明灯LED_W两端的分压，使得照明灯LED_W两端的电压分压到集成芯片100可以接收的合理电压范围内，保证不会因电压过高烧毁集成芯片100。具体地，集成芯片100能够接受的各个分压单元输出端的输出电压可以为5V左右。
需要说明的是，可选地，在本发明实施例中，分压单元的具体结构并不限于上述图6所示，即图6所示的结构只是实现分压单元功能的一个具体实施例，分压单元的具体结构还可以采用本领域技术人员所熟知的其他可以实现分压单元功能的结构，在此并不限定。
本发明实施例提供的电动汽车充电座中，如图7所示，还可以包括信号过滤单元6，用于过滤分压单元3输出端的输出电压，信号过滤单元6的输入端与分压单元3的输出端连接，信号过滤单元6的输出端与获取模块22连接。信号过滤单元6可以实现对分压单元3输出端的输出电压的滤波。
具体地，如图8所示，信号过滤单元6可以包括第六电阻R6和滤波电容C，第六电阻R6的第一端与分压单元3的输出端连接，第六电阻R6的第二端与获取模块22连接，滤波电容C的第一端与第六电阻R6的第二端连接，滤波电容C的第二端接地。
上述信号过滤单元6中，分压单元3输出端的信号经过第六电阻R6输入到获取模 块22内，第六电阻R6能够防止功能灯1故障发生后大电流流入控制单元2，烧毁检测控制单元2，起到限流作用。为了保证控制单元2的获取模块22的获取到的信号的质量，减小采样的波动，可以通过滤波电容进行滤波，滤波电容C需要临近控制单元2设置。
在具体地实施方式中，如图9所示，分压单元31的输出端与信号过滤单元61连接，信号过滤单元61中的电阻R61和滤波电容C1能够保护电路且保证单片机100对分压单元31输出端的输出电压的采样功能，有利于对红光状态灯LED_R故障的检测；分压单元32的输出端与信号过滤单元62连接，信号过滤单元62中的电阻R62和滤波电容C2能够保护电路且保证集成芯片100对分压单元32输出端的输出电压的采样功能，有利于对绿光状态灯LED_G故障的检测；分压单元33的输出端与信号过滤单元63连接，信号过滤单元63中的电阻R63和滤波电容C3能够保护电路且保证集成芯片100对分压单元33输出端的输出电压的采样功能，有利于对蓝光状态灯LED_B故障的检测。分压单元34的输出端与信号过滤单元64连接，信号过滤单元64中的电阻R64和滤波电容C4能够保护电路且保证集成芯片100对分压单元3输出端的输出电压的采样功能。
需要说明的是，可选地，在本发明实施例中，信号过滤单元6的具体结构并不限于上述图8所示，即图8所示的结构只是实现信号过滤单元6功能的一个具体实施例，信号过滤单元6的具体结构还可以采用本领域技术人员所熟知的其他可以实现信号获取模块功能的结构，在此并不限定。
上述发明实施例提供的电动汽车充电座中，获取模块22还可以包括与功能灯1一一对应的子获取模块，每个子获取模块具体可以配置为：获取与功能灯对应的状态调节信号和与功能灯对应的分压单元输出端的输出电压。
上述电动汽车充电座中，获取模块可以包括与功能灯一一对应的子获取模块，通过子获取模块对状态调节信号和分压单元输出端的输出电压进行分别获取。
在具体地实施方式中，如图9所示，集成芯片中100作为获取模块22与信号过滤单元连接时，可以通过ADC引脚获取信号过滤单元61、信号过滤单元62、信号过滤单元63和信号过滤单元64输出端的信号。
例如，如图9所示，当集成芯片100输出的PWM_R信号、PWM_G信号、PWM_B信号的PWM输出占空比均为0时，开关管Q1、开关管Q2和开关管Q3不能导通，红光状态灯LED_R、绿光状态灯LED_G和蓝光状态灯LED_B关灭，单片机100的引脚R_ADC、R_ADC和R_ADC可以分别获取到信号过滤单元61、信号过滤单元62、信号过滤单元63的输出端的电压，即三个状态灯关灭时两端被分压后的电压，例如，5.85V。 而当PWM_R信号的PWM输出占空比不为零时，开关管Q1导通，红光状态灯LED_R所在的回路导通，红光状态灯LED_R点亮，集成芯片100的R_ADC引脚从信号过滤单元61的输出端获取到的信号为红光状态灯LED_R导通压降与MOS管Vds之和经分压单元分压后的数值，例如，红光状态灯LED_R导通压降与MOS管Vds和的一半，而绿光状态灯LED_G和蓝光状态灯LED_B的工作原理与红光状态灯LED_R的相同。而当PWM_R信号的PWM输出占空比不为零，开关管Q1导通时，红光状态灯LED_R回路连通，如果此时红光状态灯LED_R断路，则红光状态灯LED_R不亮，集成芯片100的引脚R_ADC获取到的信号为5.85V，则判断模块23判定此时红光状态灯LED_R断路故障，绿光状态灯LED_G和蓝光状态灯LED_B与红光状态灯LED_R相同。而当PWM_R信号的PWM输出占空比不为零，开关管Q1导通，红光状态灯LED_R回路连通，如果此时红光状态灯LED_R短路，红光状态灯LED_R不亮，集成芯片100的引脚R_ADC获取到的信号则为0V，此时则判断模块23判定红光状态灯LED_R短路故障，绿光状态灯LED_G和蓝光状态灯LED_B与红光状态灯LED_R相同。
如图9所示，当PWM_W信号输出高电平，开关管Q4导通，照明灯回路连通，照明灯LED_W点亮，集成芯片100的引脚W_ADC获取到信号过滤单元64的输出端的电压，即照明灯LED_W导通压降与三极管Vce的和被分压单元分压后的数值，例如，照明灯导通压降与三极管Vce之和的一半；当PWM_W信号输出低电平，开关管Q4不导通，照明灯LED_W的回路不连通，照明灯LED_W关灭，集成芯片100的引脚W_ADC获取到的信号照明灯两端被分压单元分压后的数值，例如为5.85V；而当PWM_W信号输出高电平时，开关管Q4导通，照明灯回路连通，如果此时照明灯LED_W断路，则照明灯不亮，集成芯片100的引脚W_ADC获取到的信号为5.85V，判断模块23则判定照明灯断路故障；当PWM_W信号输出高电平，开关管Q4导通，照明灯回路连通，如果此时照明灯LED_W短路，照明灯LED_W不亮，集成芯片100的引脚W_ADC采到信号则为0V，判断模块23则判定照明灯短路故障。
基于同一发明构思，本发明实施例还提供一种电动汽车，包括上述技术方案中提供的任意一种电动汽车充电座。
上述发明实施例提供的电动汽车中，包括至少一个功能灯1、控制单元2以及与功能灯1一一对应的至少一个分压单元3；分压单元3可以对其对应的功能灯1两端的电压进行分压，控制单元2可以包括信号输出模块21、获取模块22和判断模块23，其中：信号输出模块21可以根据汽车充电状态，输出与每个功能灯1对应的状态调节信号，以 调节每个功能灯1的工作状态，获取模块22可以获取每个功能灯1对应的状态调节信号和每个分压单元3输出端的输出电压，判断模块23配置可以在状态调节信号为控制其对应的功能灯1点亮的信号时，根据其对应的分压单元3输出端的输出电压，确定功能灯1是否存在故障，在功能灯1存在故障时能够上报汽车的管理系统，可以告知用户出现故障，提醒用户对故障的功能灯1进行维修，避免对汽车充电带来不便。
基于同一发明构思，本发明实施例还提供一种电动汽车充电座的检测方法，所述电动汽车充电座包括至少一个功能灯以及与至少一个所述功能灯一一对应连接的至少一个分压单元，如图10所示，具体步骤可以包括：
S1001：根据汽车充电状态，输出与每个所述功能灯对应的状态调节信号；
S1002：获取每个所述功能灯对应的状态调节信号和每个所述分压单元输出端的输出电压；
S1003：在所述状态调节信号为控制其对应的所述功能灯点亮的点亮信号时，根据其对应的所述分压单元输出端的输出电压，确定所述功能灯是否存在故障。
上述电动汽车充电座的检测方法中，首先，根据汽车充电状态，输出与每个所述功能灯对应的状态调节信号，然后，获取状态调节信号以及分压单元输出端的输出电压；之后，在状态调节信号为用于控制功能灯点亮的信号时，根据分压单元输出端的输出电压，确定功能灯是否存在故障。检测出功能灯是否存在故障，若在功能灯存在故障时能够上报汽车的管理系统，可以告知用户出现故障，提醒用户对故障的功能灯进行维修，避免对汽车充电带来不便。
可选地，所述根据其对应的所述分压单元输出的输出电压，确定所述功能灯是否存在故障，包括：
判断所述输出电压是否等于第一预设电压，其中，所述第一预设电压等于所述功能灯的导通压降被所述分压单元分压后的数值；
若是，判定所述功能灯无故障；
若否，判定所述功能灯故障。
可选地，所述判定所述功能灯故障，包括：
若所述输出电压等于零，判定所述功能灯短路；
若所述输出电压等于第二预设电压，判定所述功能灯断路，其中，所述第二预设电压等于所述功能灯关闭时所述分压单元输出端的电压值。
可选地，若所述功能灯为至少一个状态灯，所述输出与每个所述功能灯对应的状态 调节信号，包括：
向与所述状态灯连接的开关单元输出第一脉冲宽度调制信号，控制所述状态灯处于关灭状态，所述第一脉冲宽度调制信号的占空比为零；或者，
向与所述状态灯连接的开关单元输出第二脉冲宽度调制信号，控制所述状态灯处于常亮状态，所述第二脉冲宽度调制信号的占空比不为零且为固定值；或者，
向与所述状态灯连接的开关单元输出第三脉冲宽度调制信号，控制所述状态灯处于闪烁状态，所述第三脉冲宽度调制信号为所述第二脉冲宽度调制信号与所述第一脉冲宽度调制信号交替排列；或者，
向与所述状态灯连接的开关单元输出第四脉冲宽度调制信号，控制所述状态灯处于呼吸状态，所述第四脉冲宽度调制信号的占空比重复先依次递增后依次递减的过程。
可选地，若所述功能灯为照明灯，所述输出与每个所述功能灯对应的状态调节信号，包括：
向与所述照明灯连接的开关单元输出高电平信号，控制所述照明灯常亮；或者，
向与所述照明灯连接的开关单元输出低电平信号，控制所述照明灯关灭。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (21)

  1. 一种电动汽车充电座，其特征在于，包括至少一个功能灯、控制单元以及与至少一个所述功能灯一一对应的至少一个分压单元；
    每个所述分压单元的输入端与其对应的所述功能灯连接，以对所述功能灯两端的电压进行分压；
    所述控制单元包括信号输出模块、获取模块和判断模块，其中：
    所述信号输出模块配置为：根据汽车充电状态，输出与每个所述功能灯对应的状态调节信号，以调节每个所述功能灯的工作状态；
    所述获取模块配置为：获取每个所述功能灯对应的状态调节信号和每个所述分压单元输出端的输出电压；
    所述判断模块配置为：在所述状态调节信号为控制其对应的所述功能灯点亮的信号时，根据其对应的所述分压单元输出端的输出电压，确定所述功能灯是否存在故障。
  2. 根据权利要求1所述的电动汽车充电座，其特征在于，所述判断模块具体配置为：
    判断所述输出电压是否等于第一预设电压，其中，所述第一预设电压等于所述功能灯的导通压降被所述分压单元分压后的数值；
    若是，判定所述功能灯无故障；
    若否，判定所述功能灯故障。
  3. 根据权利要求2所述的电动汽车充电座，其特征在于，在判定所述功能灯故障时，所述判断模块还具体配置为：
    若所述输出电压等于零，判定所述功能灯短路；
    若所述输出电压等于第二预设电压，判定所述功能灯断路，其中，所述第二预设电压等于所述功能灯关闭时所述分压单元输出端的电压值。
  4. 根据权利要求1-3任一项所述的电动汽车充电座，其特征在于，还包括与至少一个所述功能灯一一对应的至少一个开关单元；
    每个所述功能灯的正极与电源连接，每个所述功能灯的负极通过对应的所述开关单元接地，每个所述开关单元的控制端与所述信号输出模块连接，以接收对应的所述状态调节信号。
  5. 根据权利要求4所述的电动汽车充电座，其特征在于，所述至少一个功能灯包 括用于指示充电状态的至少一个状态灯，和/或，用于为充电时插拔充电枪头提供照明的照明灯；
    当所述功能灯为所述状态灯时，所述状态调节信号为脉冲宽度调制信号；
    当所述功能灯为所述照明灯时，所述状态调节信号为电平信号。
  6. 根据权利要求5所述的电动汽车充电座，其特征在于，至少一个所述状态灯包括用于组成一个充电状态指示灯的红色状态灯、绿色状态灯和蓝色状态灯。
  7. 根据权利要求5所述的电动汽车充电座，其特征在于，若所述功能灯为至少一个所述状态灯，在输出与每个所述功能灯对应的状态调节信号时，所述信号输出模块具体配置为：
    向与所述状态灯连接的开关单元输出第一脉冲宽度调制信号，控制所述状态灯处于关灭状态，所述第一脉冲宽度调制信号的占空比为零；或者，
    向与所述状态灯连接的开关单元输出第二脉冲宽度调制信号，控制所述状态灯处于常亮状态，所述第二脉冲宽度调制信号的占空比不为零且为固定值；或者，
    向与所述状态灯连接的开关单元输出第三脉冲宽度调制信号，控制所述状态灯处于闪烁状态，所述第三脉冲宽度调制信号为所述第二脉冲宽度调制信号与所述第一脉冲宽度调制信号交替排列；或者，
    向与所述状态灯连接的开关单元输出第四脉冲宽度调制信号，控制所述状态灯处于呼吸状态，所述第四脉冲宽度调制信号的占空比重复先依次递增后依次递减的过程。
  8. 根据权利要求5所述的电动汽车充电座，其特征在于，若所述功能灯为照明灯，在输出与每个所述功能灯对应的状态调节信号时，所述信号输出模块具体配置为：
    向与所述照明灯连接的开关单元输出高电平信号，控制所述照明灯常亮；或者，
    向与所述照明灯连接的开关单元输出低电平信号，控制所述照明灯关灭。
  9. 根据权利要求4所述的电动汽车充电座，其特征在于，所述开关单元包括开关管、第一电阻和第二电阻；
    所述开关管的第一端与所述功能灯的负极连接，所述开关管的第二端接地；所述第一电阻的第一端与所述信号输出模块连接，所述第一电阻的第二端与所述开关管的控制端连接，所述第二电阻的第一端与所述开关管的控制端连接，所述第二电阻的第二端接地。
  10. 根据权利要求4所述的电动汽车充电座，其特征在于，还包括与至少一个所述功能灯一一对应的至少一个限流单元，所述功能灯的正极通过所述限流单元与电源连 接。
  11. 根据权利要求10所述的电动汽车充电座，其特征在于，每个所述限流单元包括第三电阻，所述第三电阻的第一端与电源连接，所述第三电阻的第二端与所述功能灯的正极连接。
  12. 根据权利要求1所述的电动汽车充电座，其特征在于，每个所述分压单元包括第四电阻和第五电阻，所述第四电阻的第一端与所述功能灯的正极连接，所述第四电阻的第二端与所述获取模块连接，所述第五电阻的第一端与所述第四电阻的第二端连接，所述第五电阻的第二端接地。
  13. 根据权利要求1所述的电动汽车充电座，其特征在于，还包括与至少一个所述分压单元一一对应的至少一个信号过滤单元，用于过滤所述分压单元输出端的输出电压，每个所述信号过滤单元的输入端与对应的所述分压单元的输出端连接，每个所述信号过滤单元的输出端与所述获取模块连接。
  14. 根据权利要求13所述的电动汽车充电座，其特征在于，每个所述信号过滤单元包括第六电阻和滤波电容，所述第六电阻的第一端与所述分压单元的输出端连接，所述第六电阻的第二端与所述获取模块连接，所述滤波电容的第一端与所述第六电阻的第二端连接，所述滤波电容的第二端接地。
  15. 根据权利要求1所述的电动汽车充电座，其特征在于，所述获取模块包括与所述功能灯一一对应的子获取模块，每个所述子获取模块配置为：
    获取与所述功能灯对应的所述状态调节信号和与所述功能灯对应的所述分压单元输出端的输出电压。
  16. 一种电动汽车，其特征在于，包括如权利要求1-15任一项所述的电动汽车充电座。
  17. 一种电动汽车充电座的检测方法，其特征在于，所述电动汽车充电座包括至少一个功能灯以及与至少一个所述功能灯一一对应连接的至少一个分压单元，所述检测方法包括：
    根据汽车充电状态，输出与每个所述功能灯对应的状态调节信号；
    获取每个所述功能灯对应的状态调节信号和每个所述分压单元输出端的输出电压；
    在所述状态调节信号为控制其对应的所述功能灯点亮的点亮信号时，根据其对应的所述分压单元输出端的输出电压，确定所述功能灯是否存在故障。
  18. 根据权利要求17所述的检测方法，其特征在于，所述根据其对应的所述分压 单元输出的输出电压，确定所述功能灯是否存在故障，包括：
    判断所述输出电压是否等于第一预设电压，其中，所述第一预设电压等于所述功能灯的导通压降被所述分压单元分压后的数值；
    若是，判定所述功能灯无故障；
    若否，判定所述功能灯故障。
  19. 根据权利要求18所述的检测方法，其特征在于，所述判定所述功能灯故障，包括：
    若所述输出电压等于零，判定所述功能灯短路；
    若所述输出电压等于第二预设电压，判定所述功能灯断路，其中，所述第二预设电压等于所述功能灯关闭时所述分压单元输出端的电压值。
  20. 根据权利要求17-19任一项所述的检测方法，其特征在于，若所述功能灯为至少一个状态灯，所述输出与每个所述功能灯对应的状态调节信号，包括：
    向与所述状态灯连接的开关单元输出第一脉冲宽度调制信号，控制所述状态灯处于关灭状态，所述第一脉冲宽度调制信号的占空比为零；或者，
    向与所述状态灯连接的开关单元输出第二脉冲宽度调制信号，控制所述状态灯处于常亮状态，所述第二脉冲宽度调制信号的占空比不为零且为固定值；或者，
    向与所述状态灯连接的开关单元输出第三脉冲宽度调制信号，控制所述状态灯处于闪烁状态，所述第三脉冲宽度调制信号为所述第二脉冲宽度调制信号与所述第一脉冲宽度调制信号交替排列；或者，
    向与所述状态灯连接的开关单元输出第四脉冲宽度调制信号，控制所述状态灯处于呼吸状态，所述第四脉冲宽度调制信号的占空比重复先依次递增后依次递减的过程。
  21. 根据权利要求17-19任一项所述的检测方法，其特征在于，若所述功能灯为照明灯，所述输出与每个所述功能灯对应的状态调节信号，包括：
    向与所述照明灯连接的开关单元输出高电平信号，控制所述照明灯常亮；或者，
    向与所述照明灯连接的开关单元输出低电平信号，控制所述照明灯关灭。
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