Control system and method for charging breathing lamp of electric vehicle

Abstract

The invention discloses a control system and method for a charging breathing lamp of an electric vehicle. The control system comprises a charging detection module, a control module and the charging breathing lamp. The charging breathing lamp is arranged on a vehicle and is used for displaying a current charging state through a lightening state; the charging detection module is used for detecting charging state information of a current vehicle, and the output end of the charging detection module is connected to the control module; the output end of the control module is connected to the charging breathing lamp, and the control module controls the charging breathing lamp to work in a corresponding lightening state according to the detected current charging state information. The method has the advantages that charging light reminding is given before and after charging and in the charging process by adding the breathing lamp, and the user experience feeling is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of charging control reminders, in particular to a control system and method for a breathing light for charging an electric vehicle. BACKGROUND

[0002] With the development of automobile technology, the use of reminders and user experience technology is becoming more and more perfect. For example, in the prior art, LED light strips are often used to achieve a welcome function. The welcome function is actually a light reminder technology that achieves a certain functional effect through the flickering of the light. This functional effect can be used as a reminder or as a sense of ceremony to improve user experience. From a technical point of view or a user experience point of view, it is very friendly to users.

[0003] During the use of an electric vehicle, charging the vehicle is the most common scenario. However, there is no light reminder during the charging process, so the user cannot easily and quickly obtain the charging status before and after charging and during charging. The user needs to open the vehicle infotainment screen to check the charging status, which results in a poor user experience. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a control system and method for a breathing light for charging an electric vehicle. The control system and method give a light reminder before and after charging and during charging by adding a breathing light, thereby improving the user experience.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] A control system for a breathing light for charging an electric vehicle includes a charging detection module, a control module, and a charging breathing light. The charging breathing light is arranged on the vehicle and is used to display the current charging status by lighting. The charging detection module is used to detect the charging status information of the current vehicle and is connected to the control module. The output end of the control module is connected to the charging breathing light. The control module controls the charging breathing light to work in the corresponding lighting state according to the detected current charging status information.

[0007] The charging detection module includes a charging port cover state monitoring unit, a charging connection state monitoring unit, and a charging state monitoring unit.

[0008] The charging port cover state monitoring unit, the charging connection state monitoring unit, and the charging state monitoring unit are connected to the control module.

[0009] The charging port cover state monitoring unit is used to monitor the opening and closing states of the current charging port cover.

[0010] The charging connection state monitoring unit is used to monitor the current charging port connection state.

[0011] The charging state monitoring unit is configured to monitor current charging state information.

[0012] The control system further comprises an inverter connection monitoring unit, an output end of the inverter monitoring unit being connected to the control module, so as to send the monitored inverter connection state and CC connection state of the inverter to the control module.

[0013] The control system further comprises a breathing lamp switch, the breathing lamp switch being configured to generate an instruction signal of a switch breathing lamp, and an output end of the breathing lamp switch being connected to the control module; the control module is configured to control whether to start the charging breathing lamp according to the instruction signal of the switch breathing lamp.

[0014] The control system further comprises a proximity detection module, the proximity detection module being configured to detect a human body signal close to the vehicle, and the proximity detection module being connected to the control module; the control module is configured to control the working state of the charging indicator light according to the human body signal close to the vehicle.

[0015] A control method of a charging breathing lamp of an electric vehicle, comprising: detecting current charging state information of the vehicle in real time; and controlling the charging breathing lamp to work in a matching lighting state according to the current charging state information.

[0016] The current charging state information comprises a charging port cover opening state, a charging gun insertion state, an inverter gun insertion state and charging process state data; and the charging breathing lamp is controlled according to the current charging state data in terms of lighting frequency, color and / or working duration.

[0017] The opening state of the charging port cover is detected in real time; when it is detected that the charging port cover of the vehicle is opened and no charging gun or inverter gun is inserted into the current charging port, the charging breathing lamp is driven to be in a constant lighting state of a first set color, and the constant lighting duration is a first time threshold value;

[0018] The state of the charging port cover and the gear position of the vehicle are monitored in real time within the first time threshold value of constant lighting;

[0019] When the charging port cover is switched to a closed state or the gear position of the vehicle is in a running gear position state, the breathing lamp is driven to be in a closed working state;

[0020] When the constant lighting of the charging breathing lamp reaches the set first time threshold value, the breathing lamp is closed.

[0021] When the charging gun is detected to be inserted, the charging state information sent by the BMS is acquired in real time, and the lighting state of the breathing lamp is controlled according to the received charging state information, wherein the charging state comprises a charging preparation state, a charging heating state, a charging fault state, a charging state, a charging reservation state and / or a charging completion state.

[0022] The lighting state includes the lighting frequency, color and or working duration of the charging breathing lamp. When the charging port is detected to be inserted into the inverter gun, the control breathing lamp works according to the corresponding color and light flickering frequency of the inverter work.

[0023] The advantage of the present application is that the charging light reminder before and after charging and during charging is given by increasing the breathing lamp, improving the user experience. After inserting the charging gun, the vehicle can have a obvious light state to prompt the user of the current charging state, so that the user can be more at ease. When the vehicle is charged for a period of time, the user can quickly understand the current charging progress through the indicator light when approaching the vehicle, facilitating the user to decide whether to continue charging. BRIEF DESCRIPTION OF DRAWINGS

[0024] The content expressed by each figure in the specification of the present application and the marks in the figures are briefly described as follows:

[0025] Figure 1 It is a principle block diagram of the control system of the electric vehicle breathing lamp of the present application.

[0026] The marks in the above figures are as follows: 1, vehicle body domain controller; 2, battery management system; 4, DCDC converter; 5, car machine large screen; 6, charging breathing lamp. DETAILED DESCRIPTION

[0027] The specific embodiments of the present application are further described in detail by comparing the figures and describing the optimal embodiments.

[0028] The control scheme of the charging breathing lamp provided in the present embodiment can realize the reminding of the charging state through the charging breathing lamp, and meet the needs of the user to know the charging state information and the needs of the user experience enhancement. Specifically, after inserting the charging gun, the vehicle can have a obvious light state to prompt the user of the current charging state, so that the user can be more at ease. When the vehicle is charged for a period of time, the user can quickly understand the current charging progress through the indicator light when approaching the vehicle, facilitating the user to decide whether to continue charging.

[0029] As shown in Figure 1 , it is the control system of the electric vehicle charging breathing of the present embodiment, including a charging detection module, a control module and a charging breathing lamp. The charging breathing lamp is arranged on the vehicle and is used to show the current charging state through the lighting state. The charging detection module is used to detect the charging state information of the current vehicle, and its output end is connected to the control module. The output end of the control module is connected to the charging breathing lamp, and the control module controls the charging breathing lamp to work in the corresponding lighting state according to the detected current charging state information.

[0030] As shown in Figure 1As shown, the charging detection module in the embodiment includes a charging port cover state monitoring unit, a charging connection state monitoring unit, and a charging state monitoring unit.

[0031] The charging port cover state monitoring unit, the charging connection state monitoring unit, and the charging state monitoring unit are connected to the control module.

[0032] The charging port cover state monitoring unit is configured to monitor the current charging port cover opening and closing state.

[0033] The charging connection state monitoring unit is configured to monitor the current charging port connection state, which includes but is not limited to: an unconnected state, a fast charging connection state, a slow charging connection state, an inverter connection state, etc.

[0034] The charging state monitoring unit is configured to monitor the current charging state information, which includes but is not limited to: a connection confirmation state, a charging preparation ready state, a charging in progress state, a charging stop state, a full battery completion state, a heating in progress state, a reservation waiting in progress state, and a charging fault state.

[0035] In the embodiment, the charging detection module collects the charging connection state and the charging state through the BMS, and the charging port cover state is obtained through the door controller.

[0036] In the embodiment, the control system further includes an inverter connection monitoring unit, the output end of which is connected to the control module, so as to send the monitored inverter connection state and CC connection state to the control module. The inverter connection monitoring unit is configured to collect the connection state of the inverter gun and the CC connection state after the inverter gun is inserted, so as to monitor the state information of the external discharge of the current charging port. The inverter connection monitoring unit can use the vehicle-mounted DCDC converter to obtain the related parameters. The corresponding breathing lamp state can be given according to the monitored inverter state information.

[0037] In the embodiment, the opening of the breathing lamp function and the request signal for turning on and off the breathing lamp function are controlled by the user. The breathing lamp switch is used to generate an instruction signal for turning on and off the breathing lamp, and the output end of the breathing lamp switch is connected to the control module. The control module controls whether to start the charging breathing lamp according to the instruction signal of the breathing lamp switch.

[0038] In the embodiment, the breathing lamp switch is integrated into the human-computer interaction interface in the form of a soft switch. The breathing lamp switch is used to input the request signal for turning on and off the breathing lamp function into the control module, and the control module executes the function of turning on and off the breathing lamp. Preferably, the control module can feed back the on-off state of the breathing lamp to the human-computer interaction module in real time, so as to display the on-off state of the breathing lamp to the user. The human-computer interaction module in the embodiment can be realized by using a vehicle-mounted large screen.

[0039] In one preferred scheme in the embodiment, a proximity detection module is arranged to detect a human body signal close to the vehicle, the proximity detection module is connected with the control module, and the control module controls the working state of the charging indicator light according to the human body signal close to the vehicle. After charging, the charging indicator light is automatically turned off after lighting for a period of time, and is restarted only when the user approaches the vehicle again, so that the user's demand for understanding the charging state through the breathing light can be met, and the breathing light can be turned off to save energy when the user is not near the vehicle.

[0040] In the embodiment, the control module is implemented by using a body domain controller, the breathing light is controlled through the body domain controller, and the body domain controller is connected to the vehicle CAN network through a CAN network to obtain gear information of the vehicle, so as to facilitate control of the breathing light. The control strategy is as follows:

[0041] The control method function of the electric vehicle charging breathing light is defined, the system framework is defined, and requirements of each device related to the function are proposed, so that the function can be realized and better user experience can be obtained under the cooperation of each device.

[0042] When the vehicle power supply is in any gear, the charging port cover is opened, and the charging gun is not inserted, the charging breathing light is always on, and is used to illuminate the charging port. When the charging gun is inserted and the vehicle is charging, the charging state of fast charging and slow charging is indicated, including the indication of various states such as charging preparation, heating, fault, charging, and charging completion. In different states, the charging breathing light is in different lighting states, and can simultaneously indicate the power state.

[0043] 1. Charging start illumination

[0044] 1.1. Charging gun is not inserted

[0045] Precondition: Charging port cover is closed & charging gun is not inserted & vehicle is in P or N gear

[0046] Trigger condition: Charging port cover is opened

[0047] Execution action: Controller drives the breathing light to be always on, and the color is light blue (color, professional specific calibration)

[0048] Closing condition: Fast and slow charging port cover is switched to the closed state || vehicle is in D or R gear || light is timed out for 15 seconds (specific time, professional calibration)

[0049] Note: Charging illumination soft switch is cancelled, power-off memory, and factory default is always on

[0050] 2. Charging start breathing light

[0051] Charging gun is inserted, and the charging indication stage

[0052] 2.1, Charge Preparation (includes charge gun or inverter gun)

[0053] When CEM receives the charge state from BMS as Charge Preparation, the charge breathing light blinks deep blue at a frequency of 60 ± 1 times / min continuously until the current charge state changes

[0054] 2.2, Charge Heating

[0055] When CEM receives the charge state from BMS as Heating, the charge breathing light is always on yellow-green until the current charge state changes

[0056] 2.3, Charge Fault

[0057] When CEM receives the charge state from BMS as Charge Fault, the breathing light is always on red for a period of time (TBD time) and then turns off. After the vehicle is unlocked again, the charge breathing light is re-lit according to the charge lighting state

[0058] 2.4, Charging

[0059] When CEM receives the charge state from BMS as Charging, the breathing light displays green according to the current power and flashes at different frequencies according to the SOC value, as follows:

[0060] SOC less than 20%, breathing light frequency 20 ± 1 times / min

[0061] SOC between 20% and 80%, breathing light frequency 15 ± 1 times / min

[0062] SOC between 80% and 100%, frequency 12 ± 1 times / min

[0063] 2.5, Charge Reservation Waiting & Charge Reaches Set Threshold

[0064] When CEM receives the charge state from BMS as Reservation Waiting, the breathing light is always on deep blue until the current charge state changes

[0065] 2.6, Charge Complete (100% or reaches set threshold) and charge gun connected

[0066] The breathing light is always on green for a period of time (5 minutes) and then turns off. After the vehicle is unlocked again, the charge breathing light is re-lit according to the charge lighting state

[0067] 2.7, Inverter Light

[0068] The inverter gun is inserted, the charging breathing lamp flashes in deep blue color with a frequency of 60±1 times / min, the inverter gun is successfully connected, the charging breathing lamp keeps flashing, the inverter ends, the charging breathing lamp switches to the charging connection state indication, the frequency is 20±1 times / min, the inverter gun is successfully pulled out, and the charging breathing lamp is turned off after being constantly lighted in light blue color for 15 seconds.

[0069] The embodiment also provides a control method of a charging breathing lamp of an electric vehicle, which comprises the following steps: detecting current charging state information of the vehicle in real time; and controlling the charging breathing lamp to work in a matching lighting state according to the current charging state information. The current charging state information comprises a charging port cover opening state, a charging gun insertion state, an inverter gun insertion state and charging process state data; and the lighting frequency, color and / or working duration of the charging breathing lamp are controlled according to the current charging state data.

[0070] Charging lighting working condition:

[0071] The opening state of the charging port cover is detected in real time, when it is detected that the charging port cover of the vehicle is opened and no charging gun or inverter gun is inserted into the current charging port, at this time, the charging lighting working condition is reached, the charging breathing lamp is driven to be constantly lighted in a first set color, and the constant lighting duration is a first time threshold;

[0072] The state of the charging port cover and the gear position of the vehicle are monitored in real time within the first time threshold of constant lighting;

[0073] When the charging port cover is switched to a closed state or the gear position of the vehicle is in a running gear position state, the breathing lamp is driven to be in a closed working state;

[0074] When the charging breathing lamp is constantly lighted for the set first time threshold, the breathing lamp is turned off.

[0075] In the charging lighting working condition, the user just opens the charging port cover and has not performed charging, at this time, after it is detected that the charging port cover is opened, the charging breathing lamp is immediately controlled to be constantly lighted, which can provide lighting for the subsequent gun insertion action, avoids the defect that the gun insertion cannot be aligned in the night and the like and the user experience is not good. In the embodiment, the color of the constant lighting of the breathing lamp is set to blue, which can be calibrated; the constant lighting time can be set to about 15 seconds, which can be calibrated.

[0076] In the embodiment, the charging lighting function is developed in the vehicle-mounted touch screen, and a charging lighting soft switch is provided in the vehicle-mounted touch screen. Whether the control of the breathing lamp in the charging lighting working condition is performed or not can be turned off or on through the charging lighting soft switch. The soft switch is set to an open state by default, and the user can modify it by himself, so that the lighting adjustment demand of the user is met. The setting of the user is memorized by the vehicle body domain controller, and the open or closed state of the soft switch is recorded in the vehicle body domain controller after each power-off, so that the control of the opening and closing of the lighting working condition is realized.

[0077] When the charging gun is detected to be inserted, real-time charging state information sent by the BMS is acquired, and the lighting state of the breathing lamp is controlled according to the received charging state information, wherein the charging state includes: a charging preparation state, a charging heating state, a charging fault state, a charging state, a charging reservation state and / or a charging completion state; the lighting state includes the lighting frequency, color and / or working duration of the charging breathing lamp. When the charging port is detected to be inserted into the inverter gun, the breathing lamp is controlled to work according to the color and light flashing frequency corresponding to the inverter working.

[0078] In a preferred embodiment, different reminder states are set for different current charging states:

[0079] 1. Charging preparation working condition state

[0080] When the charging gun is detected to be inserted and the current state is the charging preparation state, the charging preparation working condition state is entered, the current charging state sent by the BMS is the preparation state through the vehicle body domain controller CEM, at this time the charging breathing lamp is controlled to work according to the color and frequency of the charging preparation working condition until the charging preparation state ends and is converted to other states; in the charging preparation working condition, the color of the charging breathing lamp is dark blue, and the breathing lamp is controlled to flash at a frequency of 60±1 times / min.

[0081] 2. Charging heating working condition state

[0082] When the CEM receives the charging state sent by the BMS as heating, the charging breathing lamp is yellow-green constant, until the current charging state changes

[0083] 3. Charging fault working condition state

[0084] When the CEM receives the charging state sent by the BMS as charging fault, the breathing lamp is red constant, and is extinguished after a period of time (TBD time), the vehicle is unlocked again, the charging breathing lamp is re-lit according to the charging lighting state; and the charging state information fed back by the BMS is continuously acquired, and the lighting of the breathing lamp is controlled according to the state information.

[0085] 4. Charging working condition

[0086] When the vehicle body domain controller receives the charging state sent by the BMS as the charging working condition, the current battery pack capacity is acquired, and the flashing frequency of the breathing lamp is controlled according to the size of the capacity, at this time the color of the breathing lamp during charging is green. Among them, the greater the capacity, the smaller the flashing frequency of the breathing lamp, and when the battery is close to full, the green flashing of the breathing lamp will gradually slow down. In this embodiment, the flashing frequency can be adjusted in real time according to the different SOC capacities, or the breathing lamp frequency can be adjusted in a pre-segmented manner; the specific adjustment is as follows:

[0087] SOC < 20%, breathing light frequency 20±1 times / min

[0088] SOC between 20%-80%, breathing light frequency 15±1 times / min

[0089] SOC between 80%-100%, frequency 12±1 times / min

[0090] The above frequency can be calibrated and adjusted, and the color of the breathing light is preferably green.

[0091] 5, pre-charge working condition

[0092] When the CEM receives the charging state sent by the BMS, the breathing light is deep blue and always on until the current charging state changes; otherwise, the breathing light is controlled in the manner of deep blue and always on.

[0093] 6, charging completion working condition

[0094] When the charging completion signal sent by the BMS is detected, the breathing light is controlled to be always on in the set color for a set time, and then the breathing light is turned off until the vehicle is disarmed, and the breathing light is re-lit according to the charging lighting state.

[0095] 7, inverter working condition

[0096] The inverter gun is inserted, the charging breathing light is deep blue and flashes at a frequency of 60±1 times / min, the inverter gun is successfully connected, the charging breathing light is always flashing, the inverter is ended, the charging breathing light is switched to the charging connection state indication, and the frequency is 20±1 times / min, the inverter gun is successfully pulled out, and the charging breathing light is always on for 15S and then turned off.

[0097] In the charging working condition, the charging working condition control breathing light is lit and flashed, and the awakening work of the charging breathing light is controlled according to whether there is a driver around the vehicle. After the charging starts, if the vehicle is armed and there is no personnel signal around the vehicle, the CEM triggers the breathing light to temporarily enter the sleep state; when the vehicle is disarmed or someone approaches the vehicle is detected, the CEM controls the breathing light according to the current charging working condition received, and the breathing light is lit according to the corresponding working condition, thereby satisfying the temporary extinguishing of the breathing light without indication; when someone is detected, the breathing light is reactivated, achieving the purpose of lighting the breathing light on demand, and saving unnecessary power consumption.

[0098] In a preferred scheme of the embodiment, the charging breathing lamp is arranged on the vehicle body around the charging port for easy viewing. The charging breathing lamp is composed of a plurality of LED lamps. During the charging process, the number of LED lamps working according to the parameter is controlled according to the size of the charging capacity SOC, so that the user can effectively obtain the current charging progress according to the current number of LED lamp lighting and the corresponding flashing frequency. For example, taking 10 LED lamps as an example, the 10 LED lamps form a bar-shaped lamp strip or form a ring-shaped lamp strip; when the charging condition is in the charging state, if the charging reaches between 1-10%, one breathing lamp LED is lit, and if it is in the state of 10-20%, two LED lamps are controlled to work, and the working LED lamps flash according to the control, so that the current charging progress can also be judged according to the number of LED.

[0099] In a preferred embodiment, when the vehicle is set to defense, the unlocking state of the vehicle is monitored in real time. When the vehicle is unlocked, the vehicle body domain controller sends a control instruction to the vehicle projection headlamp through the CAN network, and displays the charging battery SOC data on the ground in a projection manner, so that the user can quickly view the current charging capacity through the digital projection of the vehicle headlamp during the process of approaching the vehicle from the outside. Once the unlocking state is reached, the user can accurately know the current charging capacity without reaching the tail or the display screen in the vehicle. The SOC data is continuously displayed through the projection headlamp within a set time after the vehicle is unlocked, and the projection headlamp is turned off after the set time is exceeded. Or when the vehicle is set to defense again, the projection headlamp is turned off.

[0100] Obviously, the specific implementation of the present application is not limited by the above-mentioned manner, and various non-essential improvements using the method concept and technical scheme of the present application are within the protection scope of the present application.

Claims

1. A control system for a breathing light during electric vehicle charging, characterized in that: It includes a charging detection module, a control module, and a charging breathing light; the charging breathing light is installed on the vehicle and is used to indicate the current charging status by its illumination state; the charging detection module is used to detect the current charging status information of the vehicle, and its output terminal is connected to the control module. The output of the control module is connected to the charging breathing light, and the control module controls the charging breathing light to work in the corresponding lighting state according to the detected current charging status information.

2. The control system of a breathing light of an electric vehicle charger according to claim 1, wherein: The charging detection module includes a charging port cover status monitoring unit, a charging connection status monitoring unit, and a charging status monitoring unit. The charging port cover status monitoring unit, the charging connection status monitoring unit, and the charging status monitoring unit are all connected to the control module. The charging port cover status monitoring unit is used to monitor the current open and closed status of the charging port cover; The charging connection status monitoring unit is used to monitor the current charging port connection status; The charging status monitoring unit is used to monitor the current charging status information.

3. The control system of a breathing lamp of an electric vehicle charger according to claim 1, wherein: The control system also includes an inverter connection monitoring unit. The output of the inverter monitoring unit is connected to the control module to send the monitored inverter connection status and the inverter's CC connection status to the control module.

4. A control system for a breathing light of an electric vehicle charger according to any one of claims 1 to 3, characterized in that: The control system also includes a breathing light switch, which generates a command signal to turn the breathing light on and off, and its output is connected to the control module; the control module controls whether the charging breathing light is activated or not based on the command signal to turn the breathing light on and off.

5. A control system for a breathing light of an electric vehicle charger as claimed in any one of claims 1 to 3, wherein: The control system also includes a proximity detection module, which is used to detect human signals approaching your vehicle. The proximity detection module is connected to the control module, and the control module controls the working state of the charging indicator light based on the human signals approaching the vehicle.

6. A control method of an electric vehicle charging breathing light, characterized by: This includes real-time detection of the vehicle's current charging status; and controlling the charging indicator light to operate in a matching illumination state based on the current charging status information.

7. The control method of a breathing lamp of an electric vehicle charger according to claim 6, wherein: The current charging status information includes the charging port cover opening status, charging gun insertion status, inverter gun insertion status, and charging process status data; the lighting frequency, color, and / or working duration of the charging breathing light are controlled based on the current charging status data.

8. The control method of a breathing lamp of an electric vehicle charger according to claim 7, wherein: The charging port cover is detected in real time. When the vehicle charging port cover is detected to be open and no charging gun or inverter gun is inserted into the current charging port, the charging breathing light is driven to be in a constant light state of the first set color, and the constant light duration is the first time threshold. Within the first time threshold of continuous illumination, the status of the charging port cover and the vehicle gear position time are monitored in real time. When the charging port cover is switched to the closed state or the vehicle is in the running state, the driving breathing light is in the off working state. Once the charging indicator light remains on for the set first time threshold, the indicator light will turn off.

9. A method of controlling a breathing light of an electric vehicle charging station according to any one of claims 6-8, characterized in that: When the charging gun is detected to be inserted, the charging status information sent by the BMS is obtained in real time, and the lighting status of the breathing light is controlled according to the received charging status information. The charging status includes: charging preparation status, charging heating status, charging fault status, charging in progress status, charging reservation status and / or charging completed status. The lighting status includes the lighting frequency, color, and / or duration of the charging breathing light.

10. The control method of a breathing lamp of an electric vehicle charger according to any one of claims 6-8, characterized in that: When detecting the charging port is inserted into the inverter gun, the control breathing light works according to the color corresponding to the inverter work, light flicker frequency work.

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