CN110562093B - Electric vehicle, charging method, computer equipment and storage medium - Google Patents

Electric vehicle, charging method, computer equipment and storage medium Download PDF

Info

Publication number
CN110562093B
CN110562093B CN201910916346.9A CN201910916346A CN110562093B CN 110562093 B CN110562093 B CN 110562093B CN 201910916346 A CN201910916346 A CN 201910916346A CN 110562093 B CN110562093 B CN 110562093B
Authority
CN
China
Prior art keywords
pwm signal
period
signal
information
pwm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910916346.9A
Other languages
Chinese (zh)
Other versions
CN110562093A (en
Inventor
石宝辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evergrande Hengchi New Energy Automobile Research Institute Shanghai Co Ltd
Original Assignee
Evergrande Hengchi New Energy Automobile Research Institute Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Evergrande Hengchi New Energy Automobile Research Institute Shanghai Co Ltd filed Critical Evergrande Hengchi New Energy Automobile Research Institute Shanghai Co Ltd
Priority to CN201910916346.9A priority Critical patent/CN110562093B/en
Publication of CN110562093A publication Critical patent/CN110562093A/en
Application granted granted Critical
Publication of CN110562093B publication Critical patent/CN110562093B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B60L53/66—Data transfer between charging stations and 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention provides an electric automobile, which comprises a second processor, a first Pulse Width Modulation (PWM) signal, a second PWM signal and a third PWM signal, wherein the second processor is used for generating a first PWM signal according to first information and a set coding and decoding rule, the first PWM signal comprises a second PWM signal of a first period and/or a third PWM signal of a second period, and the period length of the first period is not equal to that of the second period; a second transceiver to transmit the first PWM signal to a charging device on a control pilot CP signal line. The device provided by the invention can enable the charging pile and the electric automobile to interact with other information except the charging current and the connection state.

Description

Electric vehicle, charging method, computer equipment and storage medium
Technical Field
The invention relates to the field of charging, in particular to an electric vehicle, a charging method, computer equipment and a storage medium.
Background
At present, electric automobiles are increasing continuously, and the electric automobiles drive vehicles to run through electric power. The user uses charging device, if fill electric pile, charges for electric automobile. In an ac charging technology for charging an electric vehicle with ac power, a communication method capable of performing information interaction other than charging current and connection state between a charging pile and the electric vehicle is lacking.
Disclosure of Invention
According to the charging device, the electric automobile, the charging method, the computer equipment and the storage medium, in the process that the alternating current charging pile charges the electric automobile, interaction of other information except charging current and connection state can be carried out between the charging pile and the electric automobile.
In order to achieve the above object, a first aspect of the present invention provides a charging device comprising: a first transceiver for receiving a first PWM signal transmitted on a pilot CP signal line, wherein the first PWM signal includes a second PWM signal of a first period and/or a third PWM signal of a second period, and a period length of the first period is not equal to a period length of the second period; and the first processor is used for acquiring first information according to the second PWM signal of the first period and/or the third PWM signal of the second period and the set coding and decoding rule.
Optionally, the encoding and decoding rules include: encoding a correspondence with the first information; the code comprises a digit string consisting of a digit 1 and/or a digit 0; the second PWM signal of the first period corresponds to a digital 1 and the third PWM signal of the second period corresponds to a digital 0, or the second PWM signal of the first period corresponds to a digital 0 and the third PWM signal of the second period corresponds to a digital 1.
Optionally, the first processor is further configured to generate, in response to the obtained first information, response information of the first information according to the coding and decoding rule, where the response information of the first information includes a second PWM signal of the first period and/or a third PWM signal of the second period; and the first transceiver is also used for transmitting the response information of the first information to the electric automobile through the CP signal line.
Optionally, the duty cycle of the second PWM signal is the same as the duty cycle of the third PWM signal.
Optionally, a detection period of the duty cycle of the first PMW signal starts from a rising edge of the first PMW signal and ends with a rising edge of the first PMW signal, or starts from a falling edge of the first PMW signal and ends with a falling edge of the first PMW signal; the detection period of the duty cycle of the first PMW signal is the least common multiple of the first period and the second period or a multiple of the least common multiple.
Optionally, the first period is greater than 971us and less than 1031us, and the second period is greater than 971us and less than 1031 us.
Optionally, the first transceiver is further configured to receive or send a second PWM signal on a control pilot CP signal line;
the first processor is further configured to determine that the voltage of the second PWM signal enters a voltage range of (-12V,6V), and generate communication initialization information after the voltage of the second PWM signal enters a voltage range of (-12V,6V) for 3 s;
the first transceiver is further used for sending the communication initialization information to the electric automobile.
Optionally, the first transceiver is further configured to receive response information of the communication initialization information sent by the electric vehicle within 100ms after the communication initialization information is sent.
A second aspect of the present invention provides a charging method, including: receiving a first Pulse Width Modulation (PWM) signal transmitted on a Control Pilot (CP) signal line, wherein the first PWM signal comprises a second PWM signal of a first period and/or a third PWM signal of a second period, and the period length of the first period is not equal to that of the second period; and acquiring first information according to the second PWM signal of the first period and/or the third PWM signal of the second period and a set coding and decoding rule.
Optionally, in response to the obtained first information, generating response information of the first information according to the encoding and decoding rule, where the response information of the first information includes the second PWM signal of the first period and/or the third PWM signal of the second period; and transmitting the response information of the first information to the electric automobile through the CP signal line.
Optionally, the duty cycle of the second PWM signal is the same as the duty cycle of the third PWM signal.
Optionally, a detection period of the duty cycle of the first PMW signal starts from a rising edge of the first PMW signal and ends with a rising edge of the first PMW signal, or starts from a falling edge of the first PMW signal and ends with a falling edge of the first PMW signal; the detection period of the duty cycle of the first PMW signal is the least common multiple of the first period and the second period or a multiple of the least common multiple.
Optionally, the first period is greater than 971us and less than 1031us, and the second period is greater than 971us and less than 1031 us.
Optionally, the method further includes: receiving or transmitting a second PWM signal on a control pilot CP signal line; generating communication initialization information after determining that the voltage of the second PWM signal enters a voltage range of (-12V,6V) for 3 s; and sending the communication initialization information to the electric automobile.
Optionally, the method further includes: and receiving response information of the communication initialization information transmitted by the electric automobile within 100ms after the communication initialization information is transmitted.
A third aspect of the invention provides a computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the computer program to cause the computer apparatus to perform the method of the second aspect of the invention.
A fourth aspect of the invention provides a computer readable storage medium having stored thereon a computer program which, when executed by a computer, performs the method of the third aspect of the invention.
A fifth aspect of the invention provides an electric vehicle comprising: the second processor is used for generating a first Pulse Width Modulation (PWM) signal according to the first information and the set coding and decoding rule, wherein the first PWM signal comprises a second PWM signal of a first period and/or a third PWM signal of a second period, and the period length of the first period is not equal to that of the second period; a second transceiver to transmit the first PWM signal to a charging device on a control pilot CP signal line.
Optionally, the encoding and decoding rules include: encoding a correspondence with the first information; the code comprises a digit string consisting of a digit 1 and/or a digit 0; the second PWM signal of the first period corresponds to a digital 1 and the third PWM signal of the second period corresponds to a digital 0, or the second PWM signal of the first period corresponds to a digital 0 and the third PWM signal of the second period corresponds to a digital 1.
Optionally, the duty cycle of the second PWM signal is the same as the duty cycle of the third PWM signal.
Optionally, a detection period of the duty cycle of the first PMW signal starts from a rising edge of the first PMW signal and ends with a rising edge of the first PMW signal, or starts from a falling edge of the first PMW signal and ends with a falling edge of the first PMW signal; the detection period of the duty cycle of the first PMW signal is the least common multiple of the first period and the second period or a multiple of the least common multiple.
Optionally, the first period is greater than 971us and less than 1031us, and the second period is greater than 971us and less than 1031 us.
Optionally, the second transceiver is further configured to receive or send a second PWM signal on the control pilot CP signal line; the second processor is further configured to determine that the voltage of the second PWM signal enters a voltage range of (-12V,6V), and generate communication initialization information after the voltage of the second PWM signal enters a voltage range of (-12V,6V) for 3 s; the second transceiver is further configured to send the communication initialization information to the charging device.
Optionally, the second transceiver is further configured to receive response information of the communication initialization information sent by the charging device within 100ms after the communication initialization information is sent.
A sixth aspect of the present invention provides a charging method comprising: generating a first Pulse Width Modulation (PWM) signal according to first information and a set coding and decoding rule, wherein the first PWM signal comprises a second PWM signal of a first period and/or a third PWM signal of a second period, and the period length of the first period is not equal to that of the second period; the first PWM signal is sent to a charging device on a control pilot CP signal line.
Optionally, the encoding and decoding rules include: encoding a correspondence with the first information; the code comprises a digit string consisting of a digit 1 and/or a digit 0; the second PWM signal of the first period corresponds to a digital 1 and the third PWM signal of the second period corresponds to a digital 0, or the second PWM signal of the first period corresponds to a digital 0 and the third PWM signal of the second period corresponds to a digital 1.
Optionally, the duty cycle of the second PWM signal is the same as the duty cycle of the third PWM signal.
Optionally, a detection period of the duty cycle of the first PMW signal starts from a rising edge of the first PMW signal and ends with a rising edge of the first PMW signal, or starts from a falling edge of the first PMW signal and ends with a falling edge of the first PMW signal; the detection period of the duty cycle of the first PMW signal is the least common multiple of the first period and the second period or a multiple of the least common multiple.
Optionally, the first period is greater than 971us and less than 1031us, and the second period is greater than 971us and less than 1031 us.
Optionally, the method further includes: receiving or transmitting a second PWM signal on a control pilot CP signal line; determining that the voltage of the second PWM signal enters a voltage range of (-12V,6V), and generating communication initialization information after the voltage of the second PWM signal enters a voltage range of (-12V,6V) for 3 s; and sending the communication initialization information to the charging device.
Optionally, the method further includes: and receiving response information of the communication initialization information transmitted by the charging device within 100ms after the communication initialization information is transmitted.
A seventh aspect of the invention provides a computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the computer program to cause the computer apparatus to perform the method of the sixth aspect of the invention.
An eighth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a computer, implements the method of the sixth aspect of the present invention.
The invention has the beneficial effects that:
the invention provides a charging device, an electric vehicle, a charging method, computer equipment and a storage medium, which can enable the interaction of other information except charging current and connection state between a charging pile and the electric vehicle in the process of charging the electric vehicle by an alternating current charging pile.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention.
Fig. 1 is a schematic structural diagram of a charging device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a first PWM signal according to a first embodiment of the present invention;
fig. 3 is a schematic flowchart of a charging method according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a computer device according to a third embodiment of the present invention;
fig. 5 is a schematic connection diagram of a computer-readable storage medium according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electric vehicle according to a fifth embodiment of the present invention;
fig. 7 is a schematic flowchart of a charging method according to a sixth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a computer device according to a seventh embodiment of the present invention;
fig. 9 is a schematic connection diagram of a computer-readable storage medium according to an eighth embodiment of the present invention.
Detailed Description
Various embodiments of the present invention will be described more fully hereinafter. The invention is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit various embodiments of the invention to the specific embodiments disclosed herein, but on the contrary, the intention is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of various embodiments of the invention.
Hereinafter, the terms "includes" or "may include" used in various embodiments of the present invention indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the invention, the expression "a or/and B" includes any or all combinations of the words listed simultaneously, e.g., may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: in the present invention, unless otherwise explicitly stated or defined, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; there may be communication between the interiors of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, it should be understood by those skilled in the art that the terms indicating an orientation or a positional relationship herein are based on the orientations and the positional relationships shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation and operate, and thus, should not be construed as limiting the present invention.
The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
Referring to fig. 1, fig. 1 shows a charging device 100 according to an embodiment of the present invention, where optionally, the charging device 100 may be a charging pile, and the charging device includes:
a first transceiver 110 configured to receive a first Pulse Width Modulation (PWM) signal transmitted on a Control Pilot (CP) signal line, the first PWM signal including a second PWM signal having a first period and/or a third PWM signal having a second period, a period length of the first period being unequal to a period length of the second period;
the first processor 120 is configured to obtain the first information according to the second PWM signal of the first period and/or the third PWM signal of the second period, and the set codec rule.
The encoding and decoding rules comprise: and coding the corresponding relation with the first information, wherein the coding comprises a digit string consisting of a digit 1 and/or a digit 0. The second PWM signal of the first period corresponds to a digital 1 and the third PWM signal of the second period corresponds to a digital 0, or the second PWM signal of the first period corresponds to a digital 0 and the third PWM signal of the second period corresponds to a digital 1.
Specifically, the charging pile and the electric automobile perform information interaction through a CP signal line.
For example, as shown in fig. 2, fig. 2 shows a first PWM signal including a second PWM signal of a first period and a third PWM signal of a second period, where the first period may be 1026us, the second period may be 975us, then a PWM signal of 1026us corresponds to a digital 1, a PWM signal of 975us corresponds to a digital 0, and then the digital string represented by the PWM signal in fig. 2 is "01". Alternatively, a PWM signal with a period of 1026us corresponds to a digital 0, and a PWM signal with a period of 975us corresponds to a digital 1, so that the digital string represented by the PWM signal in fig. 2 is "10".
Optionally, the first processor is further configured to generate, in response to the obtained first information, response information of the first information according to the coding and decoding rule, where the response information of the first information includes the second PWM signal of the first period and/or the third PWM signal of the second period. And the first transceiver is also used for transmitting the response information of the first information to the electric automobile through the CP signal line. Alternatively, the first period may be a long period, and the second period may be a short period. Optionally, the first information may be communication initialization information, and the response information of the first information may be communication connection establishment response information.
In particular, the above-mentioned coding and decoding rules may comprise a coding table, the following coding table shows the correspondence between the coding of a 11-bit numeric string and the information it represents.
Figure BDA0002216232690000101
Figure BDA0002216232690000111
The following describes a process of establishing a communication connection between the charging pile and the electric vehicle, by taking an example that the PWM signal with the long period corresponds to a digital 1 and the PWM signal with the short period corresponds to a digital 0. When the charging pile determines that communication connection is to be established with the electric automobile, and the charging pile needs to send communication initialization information to the electric automobile, the charging pile determines to send a code '11110000000' to the electric automobile according to the code table, namely continuously sending PWM signals with 4 long periods and PWM signals with 7 short periods. After receiving the 4 long-period PWM signals and the 7 short-period PWM signals, the electric vehicle determines that the received signals indicate communication initialization information according to the coding table. After the electric automobile determines that the communication connection is to be established and determines that a communication connection establishment response message is to be replied to the charging pile, the electric automobile determines to send a code '11111000000' to the charging pile according to the code table, namely, continuously sends PWM signals with 5 long periods and PWM signals with 6 short periods. Similarly, after receiving the 5 long-period PWM signals and the 6 short-period PWM signals, the charging pile may send a code "11111000000" indicating the communication connection establishment completion information to the electric vehicle, that is, continuously send the 5 long-period PWM signals and the 6 short-period PWM signals.
Optionally, the process of establishing communication between the charging pile and the electric vehicle may be performed before or after the electric power is supplied.
After the communication connection is established, the following description also takes the case that the PWM signal with the long period corresponds to the number 1, and the PWM signal with the short period corresponds to the number 0 as an example, to describe a process of the charging pile acquiring the vehicle-end battery power information from the electric vehicle. When the charging pile determines to acquire the battery power of the electric automobile, the charging pile determines to send request information for acquiring the battery power of the automobile end to the electric automobile, and the charging pile determines to send a code '10001000000' to the electric automobile according to the code table, namely, sequentially sending 1 long-period PWM signal, 3 short-period PWM signals, 1 long-period PWM signal and 6 short-period signals. After the electric automobile receives the PWM signal, the received signal is determined to be request information for acquiring the electric quantity of the battery at the automobile end according to the coding table. After the electric vehicle determines that battery power information needs to be fed back, the electric vehicle determines to send a code "1000110 ×", to the charging pile according to the code table, wherein the last four digits of "1000110 ×", which can be used for indicating specific battery power or battery power range, namely sending 1 long-period PWM signal, 3 short-period PWM signal, 2 long-period PWM signal, 1 short-period PWM signal and 4-period PWM signal indicating specific battery power. Alternatively, the accuracy of the fed back battery level information may also be increased by lengthening the number string, such as the first 7-bit or 11-bit number string, as the message header of the battery level information, and the last several bits represent the specific battery level. Similarly, the charging post may then send a code "01010000000" indicating confirmation of receipt of the battery power information to the electric vehicle, and the electric vehicle may send a code "10010100000" indicating confirmation of feedback of the battery power information to the charging post.
Optionally, the duty cycle of the second PWM signal is the same as the duty cycle of the third PWM signal. As shown in fig. 2, the duty cycle of the PWM signal having a period of 975us and the duty cycle of the PWM signal having a period of 1026us are both 50%.
Optionally, a detection period of the duty cycle of the first PMW signal starts from a rising edge of the first PMW signal and ends with a rising edge of the first PMW signal, or starts from a falling edge of the first PMW signal and ends with a falling edge of the first PMW signal; the detection period of the duty cycle of the first PMW signal is the least common multiple of the first period and the second period or a multiple of the least common multiple. Specifically, since the first PWM signal includes two PWM signals with different periods, it is necessary to ensure that the duty ratio of the detected first PMW signal is stable, and the stable duty ratio can be obtained through the detection period and/or the detection manner of the duty ratio.
Optionally, the first period is greater than 971us and less than 1031us, and the second period is greater than 971us and less than 1031 us.
Optionally, the first transceiver is further configured to receive or transmit a second PWM signal on the control pilot CP signal line. Alternatively, the second PWM signal may be a PWM signal having no particular meaning. The first processor is further configured to determine that the voltage of the second PWM signal enters a voltage range of (-12V,6V), and generate communication initialization information after the voltage of the second PWM signal enters a voltage range of (-12V,6V) for 3 s. The first transceiver is further used for sending the communication initialization information to the electric automobile. Specifically, when the charging pile and the electric vehicle start to communicate during charging, the communication initialization information may be generated after the voltage of the second PWM signal on the CP signal line enters the voltage range of (-12V,6V) for 3 s. Alternatively, when 15s is required for the start-up of the communication system, the communication initialization information may be generated after the voltage of the second PWM signal enters the (-12V,6V) voltage range of 18 s.
Optionally, the first transceiver is further configured to receive response information of the communication initialization information sent by the electric vehicle within 100ms after the communication initialization information is sent. Specifically, the time from the time when the charging pile stops sending the PWM signal to the time when the electric vehicle starts sending the PWM signal is less than 100ms, and the time from the time when the electric vehicle stops sending the PWM signal to the time when the charging pile starts sending the PWM signal is less than 100 ms.
The charging device provided by the embodiment of the invention can enable the charging pile and the electric automobile to interact with other information except the charging current and the connection state in the process of charging the electric automobile.
Referring to fig. 3, fig. 3 shows a charging method according to a second embodiment of the present invention, which includes:
step 310, receiving a first PWM signal transmitted on the control pilot CP signal line, where the first PWM signal includes a second PWM signal of a first period and/or a third PWM signal of a second period, and a period length of the first period is not equal to a period length of the second period.
And 320, acquiring first information according to the second PWM signal of the first period and/or the third PWM signal of the second period and the set coding and decoding rule.
Optionally, in response to the obtained first information, generating response information of the first information according to the encoding and decoding rule, where the response information of the first information includes the second PWM signal of the first period and/or the third PWM signal of the second period; and transmitting the response information of the first information to the electric automobile through the CP signal line.
Optionally, the duty cycle of the second PWM signal is the same as the duty cycle of the third PWM signal.
Optionally, a detection period of the duty cycle of the first PMW signal starts from a rising edge of the first PMW signal and ends with a rising edge of the first PMW signal, or starts from a falling edge of the first PMW signal and ends with a falling edge of the first PMW signal; the detection period of the duty cycle of the first PMW signal is the least common multiple of the first period and the second period or a multiple of the least common multiple.
Optionally, the first period is greater than 971us and less than 1031us, and the second period is greater than 971us and less than 1031 us.
Optionally, the method further includes: receiving or transmitting a second PWM signal on a control pilot CP signal line; generating communication initialization information after determining that the voltage of the second PWM signal enters a voltage range of (-12V,6V) for 3 s; and sending the communication initialization information to the electric automobile.
Optionally, the method further includes: and receiving response information of the communication initialization information transmitted by the electric automobile within 100ms after the communication initialization information is transmitted.
For other steps or functional descriptions of the charging method provided in this embodiment, reference may be made to the related description of the first embodiment of the present invention, and details are not described here again.
According to the charging method provided by the embodiment of the invention, in the process of charging the electric automobile, other information except the charging current and the connection state can be interacted between the charging pile and the electric automobile.
Referring to fig. 4, fig. 4 shows a computer device 400 provided by a third embodiment of the present invention, the computer device includes a memory 410, a processor 420, and a computer program stored in the memory 410 and executable on the processor 420, and the processor executes the computer program to make the computer device 400 execute the method described in the second embodiment.
Referring to fig. 5, fig. 5 shows a computer-readable storage medium 500 according to a fourth embodiment of the present invention, where the storage medium 500 stores a computer program, and the computer program is executed by a computer 510 to implement the method according to the second embodiment.
Referring to fig. 6, fig. 6 shows a charging car 600 according to a fifth embodiment of the present invention, where the charging car includes:
a second processor 610, configured to generate a first PWM signal according to the first information and the set codec rule, where the first PWM signal includes a second PWM signal of a first period and/or a third PWM signal of a second period, and a period length of the first period is not equal to a period length of the second period;
a second transceiver 620 for transmitting the first PWM signal to the charging device on a control pilot CP signal line.
Optionally, the encoding and decoding rules include: encoding a correspondence with the first information; the code comprises a digit string consisting of a digit 1 and/or a digit 0; the second PWM signal of the first period corresponds to a digital 1 and the third PWM signal of the second period corresponds to a digital 0, or the second PWM signal of the first period corresponds to a digital 0 and the third PWM signal of the second period corresponds to a digital 1.
Optionally, the duty cycle of the second PWM signal is the same as the duty cycle of the third PWM signal.
Optionally, a detection period of the duty cycle of the first PMW signal starts from a rising edge of the first PMW signal and ends with a rising edge of the first PMW signal, or starts from a falling edge of the first PMW signal and ends with a falling edge of the first PMW signal; the detection period of the duty cycle of the first PMW signal is the least common multiple of the first period and the second period or a multiple of the least common multiple.
Optionally, the first period is greater than 971us and less than 1031us, and the second period is greater than 971us and less than 1031 us.
Optionally, the second transceiver is further configured to receive or send a second PWM signal on the control pilot CP signal line; the second processor is further configured to determine that the voltage of the second PWM signal enters a voltage range of (-12V,6V), and generate communication initialization information after the voltage of the second PWM signal enters a voltage range of (-12V,6V) for 3 s; the second transceiver is further configured to send the communication initialization information to the charging device.
Optionally, the second transceiver is further configured to receive response information of the communication initialization information sent by the charging device within 100ms after the communication initialization information is sent.
For other structural or functional descriptions of the electric vehicle provided in this embodiment, reference may be made to the description related to the first embodiment of the present invention, and details are not described here again.
The electric automobile provided by the embodiment of the invention can enable the interaction of other information except the charging current and the connection state between the charging pile and the electric automobile in the process of charging the electric automobile.
Referring to fig. 7, fig. 7 shows a charging method according to a sixth embodiment of the present invention, where the method includes:
step 710, generating a first PWM signal according to the first information and the set codec rule, where the first PWM signal includes a second PWM signal of a first period and/or a third PWM signal of a second period, and a period length of the first period is not equal to a period length of the second period;
and 720, sending the first PWM signal to a charging device on a control guide CP signal line.
Optionally, the encoding and decoding rules include: encoding a correspondence with the first information; the code comprises a digit string consisting of a digit 1 and/or a digit 0; the second PWM signal of the first period corresponds to a digital 1 and the third PWM signal of the second period corresponds to a digital 0, or the second PWM signal of the first period corresponds to a digital 0 and the third PWM signal of the second period corresponds to a digital 1.
Optionally, the duty cycle of the second PWM signal is the same as the duty cycle of the third PWM signal.
Optionally, a detection period of the duty cycle of the first PMW signal starts from a rising edge of the first PMW signal and ends with a rising edge of the first PMW signal, or starts from a falling edge of the first PMW signal and ends with a falling edge of the first PMW signal; the detection period of the duty cycle of the first PMW signal is the least common multiple of the first period and the second period or a multiple of the least common multiple.
Optionally, the first period is greater than 971us and less than 1031us, and the second period is greater than 971us and less than 1031 us.
Optionally, the method further includes: receiving or transmitting a second PWM signal on a control pilot CP signal line; determining that the voltage of the second PWM signal enters a voltage range of (-12V,6V), and generating communication initialization information after the voltage of the second PWM signal enters a voltage range of (-12V,6V) for 3 s; and sending the communication initialization information to the charging device.
Optionally, the method further includes: and receiving response information of the communication initialization information transmitted by the charging device within 100ms after the communication initialization information is transmitted.
For other steps or functional descriptions of the charging method provided in this embodiment, reference may be made to the related description of the first embodiment of the present invention, and details are not described here again.
According to the charging method provided by the embodiment of the invention, in the process of charging the electric automobile, other information except the charging current and the connection state can be interacted between the charging pile and the electric automobile.
Referring to fig. 8, fig. 8 shows a computer device 800 according to a seventh embodiment of the present invention, which includes a memory 810, a processor 820 and a computer program stored in the memory 810 and executable on the processor 820, wherein the processor 820 executes the computer program to make the computer device 800 execute the method according to the sixth embodiment.
Referring to fig. 9, fig. 9 shows a computer-readable storage medium 900 provided by an eighth embodiment of the present invention, where the storage medium 900 has a computer program stored thereon, and the computer program is executed by a computer 910 to implement the method described in the sixth embodiment.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, other various changes and modifications can be made according to the above-described technical solutions and concepts, and all such changes and modifications should fall within the protection scope of the present invention.

Claims (3)

1. A charging method is characterized in that,
generating a first Pulse Width Modulation (PWM) signal according to first information and a set coding and decoding rule, wherein the first PWM signal comprises a second PWM signal of a first period and a third PWM signal of a second period, and the period length of the first period is not equal to that of the second period;
transmitting the first PWM signal to a charging device on a control pilot CP signal line;
wherein the first period is 1026us, and the second period is 975 us;
the encoding and decoding rules comprise: encoding a correspondence with the first information;
the code comprises a digit string consisting of a digit 1 and/or a digit 0;
the second PWM signal of the first period corresponds to a digital 1 and the third PWM signal of the second period corresponds to a digital 0, or the second PWM signal of the first period corresponds to a digital 0 and the third PWM signal of the second period corresponds to a digital 1;
the duty cycle of the second PWM signal is the same as the duty cycle of the third PWM signal;
the detection period of the duty ratio of the first PWM signal is from the beginning of the rising edge of the first PWM signal to the end of at least the next rising edge of the first PWM signal, or from the beginning of the falling edge of the first PWM signal to the end of at least the next falling edge of the first PWM signal, and the detection period of the duty ratio of the first PWM signal is the least common multiple of the first period and the second period or the multiple of the least common multiple;
further comprising:
receiving or transmitting the second PWM signal on a control pilot CP signal line;
determining that the voltage of the second PWM signal enters a voltage range of (-12V,6V), and generating communication initialization information after the voltage of the second PWM signal enters a voltage range of (-12V,6V) for 3 s;
sending the communication initialization information to the charging device;
further comprising:
and receiving response information of the charging device to the communication initialization information within 100ms after the communication initialization information is transmitted.
2. A computer device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executing the computer program to cause the computer device to perform the method of claim 1.
3. A computer-readable storage medium, characterized in that the storage medium has stored thereon a computer program which, when executed by a computer, implements the method of claim 1.
CN201910916346.9A 2019-09-26 2019-09-26 Electric vehicle, charging method, computer equipment and storage medium Active CN110562093B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910916346.9A CN110562093B (en) 2019-09-26 2019-09-26 Electric vehicle, charging method, computer equipment and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910916346.9A CN110562093B (en) 2019-09-26 2019-09-26 Electric vehicle, charging method, computer equipment and storage medium

Publications (2)

Publication Number Publication Date
CN110562093A CN110562093A (en) 2019-12-13
CN110562093B true CN110562093B (en) 2021-06-29

Family

ID=68782633

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910916346.9A Active CN110562093B (en) 2019-09-26 2019-09-26 Electric vehicle, charging method, computer equipment and storage medium

Country Status (1)

Country Link
CN (1) CN110562093B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113085646A (en) * 2020-01-08 2021-07-09 北京新能源汽车股份有限公司 Plug-and-play matching method and device for alternating current charging and charging operation platform

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903414A (en) * 2012-12-27 2014-07-02 比亚迪股份有限公司 Method and device for transmitting data of charging box of electric car
CN108437824A (en) * 2018-03-21 2018-08-24 成都雅骏汽车制造有限公司 Electric vehicle alternating-current charging communication device based on pwm signal and method
CN109624739A (en) * 2018-12-17 2019-04-16 北京新能源汽车股份有限公司 Electric automobile charging control method and device and automobile
CN109941125A (en) * 2019-03-08 2019-06-28 北京东方阳泰新能源科技有限公司 Battery charger and its operation method
CN109979183A (en) * 2019-05-05 2019-07-05 长沙优力电驱动系统有限公司 Signaling method, method of reseptance and signal transmission apparatus based on current carrier
CN110143153A (en) * 2019-04-18 2019-08-20 上海电享信息科技有限公司 A kind of information interacting method and system of vehicle and alternating-current charging pile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903414A (en) * 2012-12-27 2014-07-02 比亚迪股份有限公司 Method and device for transmitting data of charging box of electric car
CN108437824A (en) * 2018-03-21 2018-08-24 成都雅骏汽车制造有限公司 Electric vehicle alternating-current charging communication device based on pwm signal and method
CN109624739A (en) * 2018-12-17 2019-04-16 北京新能源汽车股份有限公司 Electric automobile charging control method and device and automobile
CN109941125A (en) * 2019-03-08 2019-06-28 北京东方阳泰新能源科技有限公司 Battery charger and its operation method
CN110143153A (en) * 2019-04-18 2019-08-20 上海电享信息科技有限公司 A kind of information interacting method and system of vehicle and alternating-current charging pile
CN109979183A (en) * 2019-05-05 2019-07-05 长沙优力电驱动系统有限公司 Signaling method, method of reseptance and signal transmission apparatus based on current carrier

Also Published As

Publication number Publication date
CN110562093A (en) 2019-12-13

Similar Documents

Publication Publication Date Title
US10461550B2 (en) Fast charging method, power adapter and mobile terminal
CN110562093B (en) Electric vehicle, charging method, computer equipment and storage medium
CN107688733B (en) Service interface calling method, device, user terminal and readable storage medium
CN103944948A (en) Method for configuring vehicle-mounted network, and intelligent vehicle-mounted terminal
CN109067513A (en) A kind of half-duplex operation method, apparatus and system
CN110239390B (en) Charging control method, charging control device, electric vehicle, computer device, and storage medium
CN105763255B (en) Communication connection method for building up, intelligent terminal and server applied to intelligent terminal
CN110544967B (en) Overcurrent detection method, overcurrent protection method, computer device and storage medium
CN110001449B (en) Charging device, charging control method, computer device, and storage medium
CN117015999A (en) Communication method and communication device for agent perception
CN109981504B (en) Communication method, communication device, computer equipment and storage medium
CN112559470A (en) File format conversion method and device, storage medium and electronic equipment
CN110518653B (en) Current detection method, computer device and storage medium
CN113132060A (en) Message data transmission method and device
CN109808540B (en) Charging method, computer equipment, storage medium and system
CN110406420A (en) A kind of charging unit, charging method, computer equipment and storage medium
JP2009055298A (en) Specific small watt-hour radio telemeter system
CN110509789A (en) Electric car and charging equipment
US10843583B2 (en) Method for carrying out a charging operation at a charging station
CN113076951B (en) Bit data reading method and system of electronic detonator, electronic detonator and initiator
CN110509809A (en) Electric car and charging equipment
CN115027318A (en) Charging management method, terminal, platform and electronic equipment for electric automobile
CN118740704A (en) Vehicle system communication protocol diagnosis device, method, equipment and storage medium
CN116033011A (en) Data communication method, device, equipment and storage medium
CN118182216A (en) Exception handling method and system based on charging pile, electronic equipment and medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20210520

Address after: 201613 301 Rong Le Dong Road, Songjiang District, Shanghai.

Applicant after: Hengda hengchi New Energy Vehicle Research Institute (Shanghai) Co.,Ltd.

Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.)

Applicant before: HENGDA SMART CHARGING TECHNOLOGY Co.,Ltd.

GR01 Patent grant
GR01 Patent grant