CN216969571U - Vehicle charging awakening system and vehicle - Google Patents
Vehicle charging awakening system and vehicle Download PDFInfo
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- CN216969571U CN216969571U CN202220241432.1U CN202220241432U CN216969571U CN 216969571 U CN216969571 U CN 216969571U CN 202220241432 U CN202220241432 U CN 202220241432U CN 216969571 U CN216969571 U CN 216969571U
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Abstract
The embodiment of the application relates to the field of automobiles, in particular to a vehicle charging awakening system and a vehicle, and the vehicle charging awakening system comprises an information processing chip, a power supply module and a resistance detection module, wherein the information processing chip comprises a power supply access end, a resistance signal detection end, a control signal output end and a charging signal detection end; the power supply access end of the information processing chip is connected with the output end of the power supply module, and the input end of the power supply module is connected with an external power supply; the charging signal detection end of the information processing chip is connected with the signal output end of the resistance detection module, and the resistance detection module is arranged at a charging port of the vehicle and is used for detecting the resistance of the charging port and outputting a corresponding CC resistance signal to the information processing chip; and the control signal output end of the information processing chip is connected with a vehicle controller of the vehicle and used for outputting a CC _ OUT limiting signal for limiting the start of the vehicle to the vehicle controller when a CC resistance signal representing that the resistance value of the charging port is in a preset resistance interval is detected.
Description
Technical Field
The embodiment of the application relates to the field of automobiles, in particular to a vehicle charging awakening system and a vehicle.
Background
GB 18384 and 2020 electric automobile safety requirement of 5.2.5 vehicle and external conduction connection locking specifically requires: when the vehicle is connected to a fixed external power source or load through a charging cable, the vehicle should not be able to move through its own drive system.
In the related art, when a charging gun of an external charging device is inserted into a charging port of a vehicle, the vehicle outputs a limiting signal by detecting a CP charging signal of the external charging device, or when a wake-up circuit detects a CC resistance signal of the charging port, the start of the vehicle is limited, and the charging port of the vehicle and the external charging device are prevented from being damaged, however, the wake-up circuit is activated by mistake in a driving process or the vehicle is subjected to rain and wading tests, so that the wake-up circuit is easily caused to send out the limiting signal by mistake, and the vehicle is flameout.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a vehicle charging awakening system and a vehicle, and aims to solve the problem that an awakening circuit mistakenly sends a limiting signal to cause flameout of the vehicle.
A first aspect of the embodiments of the present application provides a vehicle charging wake-up system, including an information processing chip, a power module, and a resistance detection module, where the information processing chip includes a power access end, a resistance signal detection end, a control signal output end, and a charging signal detection end;
the power supply access end of the information processing chip is connected with the output end of the power supply module, and the input end of the power supply module is connected with an external power supply and used for converting the electric power of the external power supply into the electric power required by the information processing chip;
the charging signal detection end of the information processing chip is connected with the signal output end of the resistance detection module, and the resistance detection module is arranged at a charging port of the vehicle and is used for detecting the resistance of the charging port and outputting a corresponding CC resistance signal to the information processing chip;
and the control signal output end of the information processing chip is connected with a vehicle controller of the vehicle and used for outputting a CC _ OUT limiting signal for limiting the starting of the vehicle to the vehicle controller when the CC resistance signal representing that the resistance value of the charging port is in a preset resistance interval is detected.
Optionally, the power module includes a voltage conversion unit for converting a voltage of an external power source.
Optionally, the external power supply may be a power supply with an output voltage of 12V, and the voltage conversion unit is configured to convert the 12V voltage of the external power supply into a 3.3V voltage.
Optionally, the system further comprises a charging control module, an input end of the charging control module is connected with an output end of the information processing chip;
the charging signal detection end of the information processing chip is connected with the charging port and used for obtaining a CP charging signal of external charging equipment and transmitting the CP charging signal to the charging control module so as to set charging information of the vehicle according to the CP charging signal.
Optionally, the system further includes an auxiliary power module, and the auxiliary power module is connected to the charging control module and is configured to supply power to the charging control module;
the information processing chip further comprises an auxiliary power supply control end, wherein a signal input end of the auxiliary power supply module is connected with the auxiliary power supply control end and used for outputting an AUX _ WAKE _ UP signal when the CP charging signal meets a preset condition so as to WAKE UP the auxiliary power supply module.
Optionally, another signal input terminal of the auxiliary power module is connected to an output terminal of the charging control module, and is configured to output a ENABLE _ AUX signal to maintain the auxiliary power module in a start state by controlling, by the charging control module, when the auxiliary power module is awakened, and output the ENABLE _ AUX signal to turn off the auxiliary power module.
Optionally, a power input end of the auxiliary power supply module is connected with an external power supply to charge the auxiliary power supply module through the external power supply.
Alternatively, the output voltage of the auxiliary power supply module may be 5V.
In a second aspect of the embodiments of the present application, a vehicle is provided, including the above vehicle charge wake-up system.
The application provides a vehicle charging awakening system and a vehicle, when the vehicle is charged, when a charging gun of an external charging device is inserted into a charging port, a resistance detection module sends a corresponding CC resistance signal to an information processing chip after detecting the resistance of the charging port, the resistance of the charging port is determined after the information processing chip detects the CC resistance signal, when the resistance value of the charging port is detected to be in a preset resistance interval, the charging gun can be considered to be inserted into the charging port, so a CC _ OUT limit signal for limiting the vehicle to start is output, when the resistance value of the charging port is detected not to be in the preset resistance interval, the vehicle can be considered to be in the environment of rain and wading tests or the resistance detection module is touched by mistake, the resistance detected by the resistance detection module is directly analyzed and determined through the information processing chip, the CC _ OUT limit signal for limiting the vehicle to start is output only when the resistance value of the charging port is in the preset resistance interval, the vehicle flameout caused by the false sending of the CC _ OUT limit signal under other conditions is effectively avoided, and the risk of vehicle misjudgment is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic block diagram of a vehicle charging wake-up system according to an embodiment of the present application.
Description of reference numerals: 1. an information processing chip; 2. a power supply module; 3. a resistance detection module; 4. a charging port; 5. a vehicle controller; 6. a charging control module; 7. and an auxiliary unit module.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
GB 18384 and 2020 electric automobile safety requirement of 5.2.5 vehicle and external conduction connection locking specifically requires: when the vehicle is connected to a fixed external power source or load through a charging cable, the vehicle should not be able to move through its own drive system.
In the related art, when a charging gun of an external charging device is inserted into a charging port of a vehicle, the vehicle outputs a limiting signal by detecting a CP charging signal of the external charging device, or when a wake-up circuit detects a CC resistance signal of the charging port, the start of the vehicle is limited, and the charging port of the vehicle and the external charging device are prevented from being damaged, however, the wake-up circuit is activated by mistake in a driving process or the vehicle is subjected to rain and wading tests, so that the wake-up circuit is easily caused to send out the limiting signal by mistake, and the vehicle is flameout.
In view of this, an embodiment of the present application provides a vehicle charging wake-up system, which includes an information processing chip 1, a power module 2, and a resistance detection module 3, where the information processing chip 1 includes a power access end, a resistance signal detection end, a control signal output end, and a charging signal detection end;
the information processing chip 1 is used for acquiring and analyzing relevant signals about the vehicle charging port 4, and comprises a detection signal about whether the charging port 4 is connected with a charging gun or not and a charging signal from an external charging device when the charging gun is connected.
The power supply access end of the information processing chip 1 is connected with the output end of the power supply module 2, and the input end of the power supply module 2 is connected with an external power supply and used for converting the electric power of the external power supply into the electric power required by the information processing chip 1.
In the working process, the power module 2 supplies power to the information processing chip 1 in real time, so that the information processing chip 1 acquires and analyzes signals in real time.
The charging signal detection end of the information processing chip 1 is connected with the signal output end of the resistance detection module 3, and the resistance detection module 3 is arranged at the charging port 4 of the vehicle and is used for detecting the resistance of the charging port 4 and outputting a corresponding CC resistance signal to the information processing chip 1;
in some embodiments, the resistance detection module 3 may be a resistance sensor, and when the charging gun is inserted into the charging port 4, the resistance at the charging port 4 changes, so that the resistance at the charging port 4 is detected in real time by the resistance detection module 3, and a CC resistance signal is sent to the information processing chip 1.
The control signal output end of the information processing chip 1 is connected with a vehicle controller 5 of the vehicle, and is used for outputting a CC _ OUT limiting signal for limiting the starting of the vehicle to the vehicle controller 5 when detecting a CC resistance signal representing that the resistance value of the charging port 4 is within a preset resistance interval.
When the information processing chip 1 detects the CC resistance signal and analyzes it, the resistance of the charging port 4 can be determined, wherein when the charging gun is inserted into the charging port 4 or the charging port 4 is filled with water, and the resistance of the charging port 4 is changed, the resistance of the charging gun when the charging gun is inserted into the charging port 4 is different from the resistance of the charging port 4 when the charging port 4 is filled with water, therefore, the information processing chip 1 analyzes the resistance value represented by the CC resistance signal, and when the resistance value is detected to be in the preset resistance interval, namely, outputting a CC _ OUT limit signal for limiting the start of the vehicle, wherein the preset resistance interval is the resistance interval at the charging port 4 when the charging gun is inserted into the charging port 4, namely, when the resistance value is detected to be in the preset resistance interval, the charging gun can be considered to be inserted into the charging port 4, so that a CC _ OUT limiting signal for limiting the starting of the vehicle is output, and the vehicle controller 5 limits the starting of the vehicle or controls the power-off of the vehicle after detecting the CC _ OUT limiting signal; when it is detected that the resistance value of the charging port 4 is not within the preset resistance interval, it can be considered that the resistance value at this time is water inlet of the charging port 4 or is erroneously touched due to other factors, and therefore no signal is output.
In this embodiment, the preset resistance interval may be 50 to 5000 ohms, so as to reduce the risk of misjudgment, and the value of the preset resistance interval may be changed according to different vehicle models or different external charging devices, thereby improving the applicability of the system.
When a vehicle is charged, when a charging gun of an external charging device is inserted into a charging port 4, a resistance detection module 3 sends a corresponding CC resistance signal to an information processing chip 1 after detecting the resistance of the charging port 4, the resistance of the charging port 4 is determined after the information processing chip 1 detects the CC resistance signal, when the resistance value of the charging port 4 is detected to be within a preset resistance interval, the charging gun can be considered to be inserted into the charging port 4, so a CC _ OUT limit signal for limiting the vehicle to start is output, when the resistance value of the charging port 4 is not detected to be within the preset resistance interval, the vehicle can be considered to be in the environment of rain and wading tests or the resistance detection module 3 is touched by mistake, the resistance detected by the resistance detection module 3 is directly analyzed and determined through the information processing chip 1, and the CC _ OUT limit signal for limiting the vehicle to start is output only when the resistance value of the charging port 4 is within the preset resistance interval, the vehicle flameout caused by the false sending of the CC _ OUT limit signal under other conditions is effectively avoided, and the risk of vehicle misjudgment is reduced.
The power module 2 comprises a voltage conversion unit for converting the voltage of an external power supply; the external power supply can be a power supply with 12V output voltage, and the voltage conversion unit is used for converting the 12V voltage of the external power supply into 3.3V voltage.
In this embodiment, the charging wake-up system further includes a charging control module 6, and an input end of the charging control module 6 is connected to an output end of the information processing chip 1; the charging signal detection end of the information processing chip 1 is connected with the charging port 4 and is used for acquiring a CP charging signal of an external charging device and transmitting the CP charging signal to the charging control module 6 so as to set charging information of the vehicle according to the CP charging signal.
When a charging gun of the external charging equipment is inserted, the external charging equipment sends a CP charging signal to the vehicle for setting each numerical value of the charging work, when the information processing chip 1 detects the CP charging signal, the CP charging signal is transmitted to the charging control module 6, and the charging control module 6 controls the vehicle to execute the charging work according to various information in the CP charging signal.
The system also comprises an auxiliary power supply module 7, wherein the auxiliary power supply module 7 is connected with the charging control module 6 and is used for supplying power to the charging control module 6; the information processing chip 1 further comprises an auxiliary power control terminal, wherein a signal input terminal of the auxiliary power module 7 is connected with the auxiliary power control terminal and is used for outputting an AUX _ WAKE _ UP signal when the CP charging signal meets a preset condition so as to WAKE UP the auxiliary power module 7.
The other signal input end of the auxiliary power module 7 is connected to the output end of the charging control module 6, and is used for outputting a ENABLE _ AUX signal to maintain the starting state of the auxiliary power module 7 by controlling the auxiliary power module 7 to be woken up through the charging control module 6, and outputting a disable _ AUX signal to turn off the auxiliary power module 7.
In a specific embodiment, when it is detected that the CP charging signal satisfies the preset condition, it may be considered that the charging gun is inserted into the charging port 4, so that the vehicle is ready to start charging, so that the information processing chip 1 outputs an AUX _ WAKE _ UP signal to the auxiliary power module 7, when the auxiliary power module 7 detects that the AUX _ WAKE _ UP signal supplies power to the charging control module 6, and when the charging control module 6 is started, the auxiliary power module 7 outputs a ENABLE _ AUX signal to the auxiliary power module 7, so as to maintain the starting state of the auxiliary power module 7, and to subsequently receive the CP charging signal.
In this embodiment, the preset condition may be that the duty ratio frequency of the CP charging signal is within the range of 700 + 1500HZ within 1S time, and may be changed according to different preset conditions of the vehicle, so as to improve the applicability of the system.
In another case, when it is detected that the resistance value is in the preset resistance range, it may also be considered that the charging gun is inserted into the charging port 4, and thus the vehicle is ready to start charging, and thus the AUX _ WAKE _ UP signal is output to the auxiliary power module 7 through the information processing chip 1.
The power input terminal of the auxiliary power supply module 7 is connected to an external power supply to charge the auxiliary power supply module 7 by the external power supply. The output voltage of the auxiliary power supply module 7 may be 5V.
When the vehicle is charged, the charging control module 6 outputs a signal for turning off ENABLE _ AUX to the auxiliary power module 7 to turn off the auxiliary power module 7, and the charging process is completed to wait for the next wakeup.
In view of this, another embodiment of the present application provides a vehicle, including the above vehicle charging wake-up system, further including a charging port 4, a vehicle battery, and a vehicle controller 5, so as to achieve an effect of reducing misjudgment when charging the vehicle.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should also be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Moreover, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or should not be construed as indicating or implying relative importance. Also, the terms "include", "including" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or terminal device including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such process, method, article, or terminal device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.
The technical solutions provided by the present application are described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understanding the present application, and the content of the present description should not be construed as limiting the present application. While various modifications of the illustrative embodiments and applications will be apparent to those skilled in the art based upon this disclosure, it is not necessary or necessary to exhaustively enumerate all embodiments, and all obvious variations and modifications can be resorted to, falling within the scope of the disclosure.
Claims (9)
1. The vehicle charging wake-up system is characterized by comprising an information processing chip (1), a power module (2) and a resistance detection module (3), wherein the information processing chip (1) comprises a power access end, a resistance signal detection end, a control signal output end and a charging signal detection end;
the power supply access end of the information processing chip (1) is connected with the output end of the power supply module (2), and the input end of the power supply module (2) is connected with an external power supply and used for converting the electric power of the external power supply into the electric power required by the information processing chip (1);
the charging signal detection end of the information processing chip (1) is connected with the signal output end of the resistance detection module (3), and the resistance detection module (3) is arranged at a charging port (4) of the vehicle and is used for detecting the resistance of the charging port (4) and outputting a corresponding CC resistance signal to the information processing chip (1) through the charging signal detection end; the CC resistance signal represents the resistance value of the charging port (4);
and the control signal output end of the information processing chip (1) is connected with a vehicle controller (5) of the vehicle and is used for outputting a CC _ OUT limiting signal for limiting the vehicle to start to the vehicle controller (5) through the control signal output end when the resistance value of the charging port (4) represented by the CC resistance signal is detected to be within a preset resistance interval.
2. The charge wake-up system according to claim 1, characterized in that the power supply module (2) comprises a voltage conversion unit for stepping down the voltage of the external power supply.
3. The charging wake-up system according to claim 2, wherein the external power source is a power source with an output voltage of 12V, and the voltage conversion unit is configured to convert the 12V voltage of the external power source into a 3.3V voltage.
4. The charge wake-up system according to claim 1, characterized in that the system further comprises a charge control module (6), an input of the charge control module (6) being connected with an output of the information processing chip (1);
the charging signal detection end of the information processing chip (1) is further connected with the charging port (4) and is used for acquiring a CP charging signal of external charging equipment and transmitting the CP charging signal to the charging control module (6) through an output end so as to set charging information of the vehicle according to the CP charging signal.
5. Charging wake-up system according to claim 4, characterized in that the system further comprises an auxiliary power supply module (7), the auxiliary power supply module (7) being connected with the charging control module (6) for supplying power to the charging control module (6);
the information processing chip (1) further comprises an auxiliary power supply control end, wherein a signal input end of the auxiliary power supply module (7) is connected with the auxiliary power supply control end and is used for outputting an AUX _ WAKE _ UP signal when the CP charging signal meets a preset condition so as to WAKE UP the auxiliary power supply module (7).
6. The charge wake-up system according to claim 5, characterized in that another signal input terminal of the auxiliary power module (7) is connected to the output terminal of the charge control module (6) for outputting a ENABLE _ AUX signal to maintain the auxiliary power module (7) in a start-up state when the auxiliary power module (7) is woken up under the control of the charge control module (6) and outputting a disable _ AUX signal to turn off the auxiliary power module (7).
7. A charge wake-up system according to claim 5, characterised in that the power input of the auxiliary power supply module (7) is connected to an external power supply for charging the auxiliary power supply module (7) by means of the external power supply.
8. The charge wake-up system according to claim 7, characterized in that the output voltage of the auxiliary power supply module (7) may be 5V voltage.
9. A vehicle comprising a vehicle charge wake-up system according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241432.1U CN216969571U (en) | 2022-01-28 | 2022-01-28 | Vehicle charging awakening system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241432.1U CN216969571U (en) | 2022-01-28 | 2022-01-28 | Vehicle charging awakening system and vehicle |
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| CN216969571U true CN216969571U (en) | 2022-07-15 |
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| CN202220241432.1U Active CN216969571U (en) | 2022-01-28 | 2022-01-28 | Vehicle charging awakening system and vehicle |
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