CN116431403A - Multi-functional two-wheeled, three-wheeled electric vehicle BMS communication test data record appearance - Google Patents
Multi-functional two-wheeled, three-wheeled electric vehicle BMS communication test data record appearance Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D9/00—Recording measured values
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2268—Logging of test results
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
- G06F11/3466—Performance evaluation by tracing or monitoring
- G06F11/3476—Data logging
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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- 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
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Abstract
The invention discloses a BMS communication test data recorder of a multifunctional two-wheeled and three-wheeled electric vehicle, which comprises a main control chip MCU, a power supply unit, a storage unit, an indication alarm unit and a communication unit, wherein the power supply unit, the storage unit, the indication alarm unit and the communication unit are all connected with the main control chip MCU; the main control chip MCU comprises a U29, Y2 is connected between 3 pins and 4 pins of the U29, and C48 and C49 which are grounded are connected in parallel on the Y2, so that the BMS can achieve the purpose of real-time data recording for technical analysis abnormality, battery running state and vehicle state analysis through data acquisition and recording of vehicle communication; support multiple communication modes, including UART, CAN, RS485, I2C, and one-wire; the large-capacity memory supports long-term real-time data storage and data stability definition analysis during bus operation; the isolation communication mode meets the application requirements of a complex electrical environment; the product can realize the simultaneous collection of receiving and transmitting data through double UART communication ports.
Description
Technical Field
The invention relates to the technical field of communication data test data of BMS (battery management system) applied to two-wheeled and three-wheeled electric vehicles, in particular to a multifunctional communication test data recorder for the BMS of the two-wheeled and three-wheeled electric vehicles.
Background
The existing two-wheeled electric motor car, moped and three-wheeled electric motor car are all completed through static test when the BMS and the controller are in communication debugging, and data grabbing analysis can only be carried out through a notebook computer during dynamic test, so that the BMS is unreliable and cannot guarantee safety. The data can not be captured through the real road condition when the vehicle is driven by two wheels, and can only be completed through the dynamometer, so that the effect is far from that of a complete road test, and the working condition data of the vehicle in operation can not be truly reflected. The data of the vehicle running cannot be completely obtained, and therefore quantitative analysis on the stability and reliability of the communication running quality of the BMS system and the whole vehicle cannot be achieved, and abnormal conditions in the communication system cannot be found.
The recorder can be hung on a bus communicated with the BMS and the controller, and data on the bus is intercepted and stored. And after the intercepted data are read by a computer, analyzing the data such as speed, current, voltage and the like when the vehicle runs, and analyzing the working state of the battery pack, the communication quality and the load capacity of the communication bus. The recorder supports various communication buses including UART, CAN, RS485, RS232, I2C, a line communication and the like, and can meet the requirements of communication data analysis and evaluation of two-wheeled electric vehicles in various communication modes.
In summary, based on the above, the data logger in the prior art still has the following drawbacks:
(1) The existing means can not grasp the running data of the vehicle in real time;
(2) There is no way to evaluate the dynamic communication quality of the vehicle operation;
(3) When an abnormality occurs, data analysis or reproduction cannot be carried out; in particular, sporadic abnormal data during running dynamics;
therefore, we need to propose a multifunctional two-wheel and three-wheel electric vehicle BMS communication test data recorder.
Disclosure of Invention
The invention aims to provide a multifunctional BMS communication test data recorder for two-wheeled and three-wheeled electric vehicles, which is used for collecting and recording data of communication between the BMS and the vehicles, achieving the aim of real-time data recording and analyzing abnormal technical analysis, battery running states and vehicle states; support multiple communication modes, including UART, CAN, RS485, I2C, and one-wire; the large-capacity memory supports long-term real-time data storage and data stability definition analysis during bus operation; the isolation communication mode meets the application requirements of a complex electrical environment; the product can realize the simultaneous collection of receiving and transmitting data through the double UART communication ports so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the BMS communication test data recorder for the multifunctional two-wheeled and three-wheeled electric vehicles comprises a main control chip MCU, a power supply unit, a storage unit, an indication alarm unit and a communication unit, wherein the power supply unit, the storage unit, the indication alarm unit and the communication unit are all connected with the main control chip MCU; the main control chip MCU comprises a U29, wherein Y2 is connected between 3 pins and 4 pins of the U29, C48 and C49 which are grounded are connected in parallel on the Y2, Y1 is connected between 5 pins and 6 pins of the U29, and C5 and C6 which are grounded are connected in parallel on the Y1;
the power supply unit comprises a USB interface and a 5V power supply input circuit, wherein the USB interface and the 5V power supply input circuit comprise a U2 and a wiring terminal J1, a pin 1 of the J1 is connected with a D5, one end of the D5 is connected to the input end of the U2, C1 and C2 which are arranged in parallel and are grounded are connected between the D5 and the input end of the U2, a pin 2 of the J1 is connected with a pin R1, a pin 3 of the J1 is connected with a pin R2, one end of the R2 is respectively connected with a pin R4 and a pin R5, and a pin 5 and a pin 6 of the J1 are connected with a grounded pin R3;
the storage unit comprises a U1, wherein pins 8 of the U1 are connected with C29 and C30 which are arranged in parallel and grounded, the indicating and alarming units Q1, Q2, Q3 and Q4 are arranged in the parallel, a collector of the Q1 is connected with R8, a base of the Q1 is connected with R9, and one end of the R8 is connected with a communication indicating lamp LED1; the collector of the Q2 is connected with R10, the base of the Q2 is connected with R11, and one end of the R10 is connected with a communication indicator light LED2; the collector of the Q3 is connected with R12, the base of the Q3 is connected with R13, and one end of the R12 is connected with a communication indicator light LED3; the collector of the Q4 is connected with R33, the base of the Q4 is connected with R34, and one end of the R33 is connected with a buzzer M1;
the communication unit comprises a UART communication circuit, a 485 communication circuit, a CAN communication circuit, a wire-through circuit and I 2 The UART communication circuit comprises a Q6, wherein a base electrode of the Q6 is connected with an R58, a collector electrode of the Q6 is connected with an R59, and one end of the R59 is connected with an LED4; the 485 communication circuit comprises a Q7, wherein a base electrode of the Q7 is connected with a R60, a collector electrode of the Q7 is connected with a R61, and one end of the R61 is connected with an LED5; the CAN communication circuit comprises a Q8, wherein a base electrode of the Q8 is connected with a R62, a collector electrode of the Q8 is connected with a R63, and one end of the R63 is connected with an LED6; the wire-through circuit comprises a Q9, wherein a base electrode of the Q9 is connected with a R64, a collector electrode of the Q9 is connected with a R65, and one end of the R65 is connected with an LED7; the I is 2 The C communication circuit comprises a Q10, wherein a base electrode of the Q10 is connected with an R66, a collector electrode of the Q10 is connected with an R67, and one end of the R67 is connected with an LED8.
Preferably, the output end of the U2 is connected with C3 and C4 which are arranged in parallel and grounded, one end of the C4 is connected with L2, one end of the L2 is connected to the U29, R1 is connected to the 44 pin of the U29, R2 is connected to the 45 pin of the U29, and R5 is connected to the 41 pin of the U29.
Preferably, pin 1 of the U1 is connected to pin 10 of the U29, pin 2 of the U1 is connected to pin 14 of the U29, pin 3 of the U1 is connected to pin 8 of the U29, pin 7 of the U1 is connected to pin 9 of the U29, pin 6 of the U1 is connected to pin 11 of the U29, and pin 5 of the U1 is connected to pin 15 of the U29.
Preferably, the transmitters of Q1, Q2, Q3 and Q4 are all grounded, R9 is connected to pin 55 of U29, R11 is connected to pin 56 of U29, R3 is connected to pin 57 of U29, and R34 is connected to pin 37 of U29.
Preferably, the transmitters of Q6, Q7, Q8, Q9 and Q10 are all grounded, R58 is connected to pin 58 of U29, R60 is connected to pin 59 of U29, R62 is connected to pin 50 of U29, R64 is connected to pin 35 of U29, and R66 is connected to pin 36 of U29.
Preferably, the device further comprises a communication isolation output circuit, wherein the communication isolation output circuit comprises a U12, a grounded C43 and a grounded C44 are arranged between a 1 pin and a 4 pin of the U12 in parallel, a grounded C45 and a grounded C46 are arranged between a 5 pin and a 8 pin of the U12 in parallel, the 8 pin of the U12 is connected with 5V, a 2 pin of the U12 is connected to a 43 pin of the U29, and a 3 pin of the U12 is connected to a 42 pin of the U29.
Preferably, the communication isolation output circuit further comprises a U9, wherein the 1 pin of the U9 is connected with R15, the 2 pin of the U9 is connected with the 3 pin of the U29, and the 4 pin of the U9 is connected with R35.
Preferably, the communication isolation output circuit further comprises a U8, a connecting terminal COM1 and a connecting terminal COM3, wherein the 4 pin of the U9 is connected to the 2 pin and the 3 pin of the U8, the 8 pin of the U8 is connected with 5V and is provided with C24 and C25 in parallel, R22 is connected between the 6 pin and the 7 pin of the U8, two ends of the R22 are respectively connected with R21 and R20, one end of the R22 is connected to the 1 pin of the COM3, the other end of the R22 is connected to the 2 pin of the CON3, the 3 pin of the CON3 is connected to the 3 pin of the COM1, and the 4 pin of the COM3 is connected to the 2 pin of the COM 1.
Preferably, the power supply circuit further comprises an isolation power supply output circuit, the isolation power supply output circuit comprises U3 and U4, 5V is connected between the U3 and the U4, R25 is connected between the input end and the output end of the U3, the output end of the U3 is connected with C17 and C18 which are arranged in parallel, R43 is connected between the 1 pin and the 3 pin of the U4, R44 is connected between the 2 pin and the 4 pin of the U4, C130 and C14 which are arranged in parallel are connected on the 2 pin of the U4, C15 and C16 which are arranged in parallel are connected on the 4 pin of the U4, and one ends of the C130, the C14, the C15, the C16, the C17 and the C18 are all grounded.
Compared with the prior art, the invention has the beneficial effects that:
the BMS and vehicle communication data acquisition and recording can achieve the aim of real-time data recording, and is used for technical analysis abnormality and battery running state and vehicle state analysis; support multiple communication modes, including UART, CAN, RS485, I2C, and one-wire; the large-capacity memory supports long-term real-time data storage and data stability definition analysis during bus operation; the isolation communication mode meets the application requirements of a complex electrical environment; the product can realize the simultaneous collection of receiving and transmitting data through double UART communication ports.
Drawings
Fig. 1 is a circuit diagram of a master control chip MCU of the present invention;
FIG. 2 is a circuit diagram of a power supply unit of the present invention;
FIG. 3 is a circuit diagram of a memory cell of the present invention;
FIG. 4 is a circuit diagram of an indication alarm unit and a communication unit of the present invention;
FIG. 5 is a circuit diagram of an isolated power supply output circuit of the present invention;
fig. 6 is a circuit diagram of a communication isolated output circuit of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: the BMS communication test data recorder for the multifunctional two-wheeled and three-wheeled electric vehicles comprises a main control chip MCU, a power supply unit, a storage unit, an indication alarm unit and a communication unit, wherein the power supply unit, the storage unit, the indication alarm unit and the communication unit are all connected with the main control chip MCU; the main control chip MCU comprises a U29, wherein Y2 is connected between 3 pins and 4 pins of the U29, C48 and C49 which are grounded are connected in parallel on the Y2, Y1 is connected between 5 pins and 6 pins of the U29, and C5 and C6 which are grounded are connected in parallel on the Y1; the main control chip MCU adopts N32G452RE of national technology, FLASH space is 512k, and the packaging is LQFP64.
The power supply unit comprises a USB interface and a 5V power supply input circuit, wherein the USB interface and the 5V power supply input circuit comprise a U2 and a wiring terminal J1, a pin 1 of the J1 is connected with a D5, one end of the D5 is connected to the input end of the U2, C1 and C2 which are arranged in parallel and are grounded are connected between the D5 and the input end of the U2, a pin 2 of the J1 is connected with a pin R1, a pin 3 of the J1 is connected with a pin R2, one end of the R2 is respectively connected with a pin R4 and a pin R5, and a pin 5 and a pin 6 of the J1 are connected with a grounded pin R3;
optionally, the power supply unit further comprises an external vehicle 20-80V power supply, and is connected with the upper computer through the USB interface to select and set corresponding communication modes and communication rates, and the jumper wire is matched to set to complete the selection of the communication party test. The power supply mode is divided into USB 5V power supply of J1 and 20-80V direct current power supply of J4, and the power can be supplied through USB products (a notebook USB interface, a mobile power supply and the like) in a mobile state; the circuit has reverse connection preventing design when supplying DC power, and the wiring is not divided into positive and negative poles.
The storage unit comprises a U1, wherein pins 8 of the U1 are connected with C29 and C30 which are arranged in parallel and grounded, the indicating and alarming units Q1, Q2, Q3 and Q4 are arranged in the parallel, a collector of the Q1 is connected with R8, a base of the Q1 is connected with R9, and one end of the R8 is connected with a communication indicating lamp LED1; the collector of the Q2 is connected with R10, the base of the Q2 is connected with R11, and one end of the R10 is connected with a communication indicator light LED2; the collector of the Q3 is connected with R12, the base of the Q3 is connected with R13, and one end of the R12 is connected with a communication indicator light LED3; the collector of the Q4 is connected with R33, the base of the Q4 is connected with R34, and one end of the R33 is connected with a buzzer M1;
optionally, the storage unit further comprises an external SD card, so that real-time storage recording can be performed, and when the vehicle is abnormal, the ground transportation states of the BMS and the battery pack can be judged through analysis of data, and the fault cause is confirmed; and can also be used as an auxiliary analysis tool for the running condition of the vehicle.
When the SD card is accessed, the captured data is stored in the SD card preferentially, and the SD card supports 16G at maximum.
The communication unit comprises a UART communication circuit, a 485 communication circuit, a CAN communication circuit, a line communication circuit and an I2C communication circuit, wherein the UART communication circuit comprises a Q6, the base electrode of the Q6 is connected with an R58, the collector electrode of the Q6 is connected with an R59, and one end of the R59 is connected with an LED4; the 485 communication circuit comprises a Q7, wherein a base electrode of the Q7 is connected with a R60, a collector electrode of the Q7 is connected with a R61, and one end of the R61 is connected with an LED5; the CAN communication circuit comprises a Q8, wherein a base electrode of the Q8 is connected with a R62, a collector electrode of the Q8 is connected with a R63, and one end of the R63 is connected with an LED6; the wire-through circuit comprises a Q9, wherein a base electrode of the Q9 is connected with a R64, a collector electrode of the Q9 is connected with a R65, and one end of the R65 is connected with an LED7; the I2C communication circuit comprises a Q10, wherein a base electrode of the Q10 is connected with an R66, a collector electrode of the Q10 is connected with an R67, and one end of the R67 is connected with an LED8.
The working state and the communication mode are indicated through the LED indicator lamp, and meanwhile, alarm and fault information are sent out through the buzzer.
The power supplies of all communication modes are isolated through the U4 power supply module, and the electric interference capacity and the electric safety are enhanced.
The supported communication modes include RS485, UART, CAN, I C and a line communication (comprising a custom mode) which are connected by adopting an isolated communication mode.
The output of U2 is connected with C3 and C4 that set up parallelly connected ground connection, the one end of C4 is connected with L2, the one end of L2 is connected on U29, R1 connects on the 44 feet of U29, R2 connects on the 45 feet of U29, R5 connects on the 41 feet of U29.
The U1 is connected with the U29 at the 10 feet, the U1 at the 14 feet, the U1 at the 3 feet at the 8 feet, the U1 at the 9 feet, the U1 at the 6 feet at the 11 feet, and the U1 at the 15 feet.
The transmitters of Q1, Q2, Q3 and Q4 are all grounded, R9 is connected to pin 55 of U29, R11 is connected to pin 56 of U29, R3 is connected to pin 57 of U29, and R34 is connected to pin 37 of U29.
The transmitters of Q6, Q7, Q8, Q9 and Q10 are all grounded, R58 is connected to pin 58 of U29, R60 is connected to pin 59 of U29, R62 is connected to pin 50 of U29, R64 is connected to pin 35 of U29, and R66 is connected to pin 36 of U29.
The high-voltage power supply circuit comprises a power supply circuit, and is characterized by further comprising a communication isolation output circuit, wherein the communication isolation output circuit comprises a U12, a grounded C43 and a grounded C44 are arranged between a 1 pin and a 4 pin of the U12 in parallel, a grounded C45 and a grounded C46 are arranged between a 5 pin and a 8 pin of the U12 in parallel, the 8 pin of the U12 is connected with 5V, a 2 pin of the U12 is connected with a 43 pin of the U29, and a 3 pin of the U12 is connected with a 42 pin of the U29.
The communication isolation output circuit further comprises a U9, wherein the 1 pin of the U9 is connected with an R15, the 2 pin of the U9 is connected with the 3 pin of the U29, and the 4 pin of the U9 is connected with an R35.
The communication isolation output circuit further comprises a U8, a wiring terminal COM1 and a wiring terminal COM3, wherein the 4 pin of the U9 is connected to the 2 pin and the 3 pin of the U8, the 8 pin of the U8 is connected with 5V and is provided with C24 and C25 in parallel, an R22 is connected between the 6 pin and the 7 pin of the U8, the two ends of the R22 are respectively connected with an R21 and an R20, one end of the R22 is connected to the 1 pin of the COM3, the other end of the R22 is connected to the 2 pin of the CON3, the 3 pin of the CON3 is connected to the 3 pin of the COM1, and the 4 pin of the COM3 is connected to the 2 pin of the COM 1.
The power supply comprises a U3, a U4, wherein the U3 is connected with the U4 through a 5V connection mode, an R25 is connected between an input end and an output end of the U3, an output end of the U3 is connected with a C17 and a C18 which are arranged in parallel, an R43 is connected between a 1 pin and a 3 pin of the U4, an R44 is connected between a 2 pin and a 4 pin of the U4, a C130 and a C14 which are arranged in parallel are connected onto the 2 pin of the U4, a C15 and a C16 which are arranged in parallel are connected onto the 4 pin of the U4, and one ends of the C130, the C14, the C15, the C16, the C17 and the C18 are grounded.
The recorder is powered by a USB or an external vehicle 20-85V power supply, is connected with an upper computer through a USB interface to select and set corresponding communication modes and communication rates, and is matched with jumper setting to finish the selection of a communication party test. The BMS and the vehicle operation data captured by the product are stored and recorded in real representation through a 1G FLASH memory or an external SD card carried by the BMS and the vehicle operation data. When the vehicle is abnormal, the operational states of the BMS and the battery pack can be judged through analysis of the data, and the fault cause is confirmed; and can also be used as an auxiliary analysis tool for the running condition of the vehicle.
And the recorder supports a plurality of communication modes including UART, CAN, RS485, I2C, a line communication, and communication speed, and can be set by an upper computer, thereby meeting the requirements of the communication modes of a plurality of total products. The working state and the communication mode are indicated through the LED indicator lamp, and the alarm signal is prompted through the buzzer.
BMS (battery management system) is a technology that is currently mature, and will not be described here.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A multi-functional two-wheeled, three-wheeled electric vehicle BMS communication test data record appearance, its characterized in that: the intelligent control system comprises a main control chip MCU, a power supply unit, a storage unit, an indication alarm unit and a communication unit, wherein the power supply unit, the storage unit, the indication alarm unit and the communication unit are all connected with the main control chip MCU; the main control chip MCU comprises a U29, wherein Y2 is connected between 3 pins and 4 pins of the U29, C48 and C49 which are grounded are connected in parallel on the Y2, Y1 is connected between 5 pins and 6 pins of the U29, and C5 and C6 which are grounded are connected in parallel on the Y1;
the power supply unit comprises a USB interface and a 5V power supply input circuit, wherein the USB interface and the 5V power supply input circuit comprise a U2 and a wiring terminal J1, a pin 1 of the J1 is connected with a D5, one end of the D5 is connected to the input end of the U2, C1 and C2 which are arranged in parallel and are grounded are connected between the D5 and the input end of the U2, a pin 2 of the J1 is connected with a pin R1, a pin 3 of the J1 is connected with a pin R2, one end of the R2 is respectively connected with a pin R4 and a pin R5, and a pin 5 and a pin 6 of the J1 are connected with a grounded pin R3;
the storage unit comprises a U1, wherein pins 8 of the U1 are connected with C29 and C30 which are arranged in parallel and grounded, the indicating and alarming units Q1, Q2, Q3 and Q4 are arranged in the parallel, a collector of the Q1 is connected with R8, a base of the Q1 is connected with R9, and one end of the R8 is connected with a communication indicating lamp LED1; the collector of the Q2 is connected with R10, the base of the Q2 is connected with R11, and one end of the R10 is connected with a communication indicator light LED2; the collector of the Q3 is connected with R12, the base of the Q3 is connected with R13, and one end of the R12 is connected with a communication indicator light LED3; the collector of the Q4 is connected with R33, the base of the Q4 is connected with R34, and one end of the R33 is connected with a buzzer M1;
the communication unit comprises a UART communication circuit, a 485 communication circuit, a CAN communication circuit, a wire-through circuit and I 2 The UART communication circuit comprises a Q6, wherein a base electrode of the Q6 is connected with an R58, a collector electrode of the Q6 is connected with an R59, and one end of the R59 is connected with an LED4; the 485 communication circuit comprises a Q7, wherein a base electrode of the Q7 is connected with a R60, a collector electrode of the Q7 is connected with a R61, and one end of the R61 is connected with an LED5; the CAN communication circuit comprises a Q8, wherein a base electrode of the Q8 is connected with a R62, a collector electrode of the Q8 is connected with a R63, and one end of the R63 is connected with an LED6; the wire-through circuit comprises a Q9, wherein a base electrode of the Q9 is connected with a R64, a collector electrode of the Q9 is connected with a R65, and one end of the R65 is connected with an LED7; the I is 2 The C communication circuit comprises a Q10, wherein a base electrode of the Q10 is connected with an R66, a collector electrode of the Q10 is connected with an R67, and one end of the R67 is connected with an LED8.
2. The multifunctional two-wheeled, three-wheeled electric vehicle BMS communication test data recorder according to claim 1, characterized in that: the output of U2 is connected with C3 and C4 that set up parallelly connected ground connection, the one end of C4 is connected with L2, the one end of L2 is connected on U29, R1 connects on the 44 feet of U29, R2 connects on the 45 feet of U29, R5 connects on the 41 feet of U29.
3. The multifunctional two-wheeled, three-wheeled electric vehicle BMS communication test data recorder according to claim 1, characterized in that: the U1 is connected with the U29 at the 10 feet, the U1 at the 14 feet, the U1 at the 3 feet at the 8 feet, the U1 at the 9 feet, the U1 at the 6 feet at the 11 feet, and the U1 at the 15 feet.
4. The multifunctional two-wheeled, three-wheeled electric vehicle BMS communication test data recorder according to claim 1, characterized in that: the transmitters of Q1, Q2, Q3 and Q4 are all grounded, R9 is connected to pin 55 of U29, R11 is connected to pin 56 of U29, R3 is connected to pin 57 of U29, and R34 is connected to pin 37 of U29.
5. The multifunctional two-wheeled, three-wheeled electric vehicle BMS communication test data recorder according to claim 1, characterized in that: the transmitters of Q6, Q7, Q8, Q9 and Q10 are all grounded, R58 is connected to pin 58 of U29, R60 is connected to pin 59 of U29, R62 is connected to pin 50 of U29, R64 is connected to pin 35 of U29, and R66 is connected to pin 36 of U29.
6. The multifunctional two-wheeled, three-wheeled electric vehicle BMS communication test data recorder according to claim 1, characterized in that: the high-voltage power supply circuit comprises a power supply circuit, and is characterized by further comprising a communication isolation output circuit, wherein the communication isolation output circuit comprises a U12, a grounded C43 and a grounded C44 are arranged between a 1 pin and a 4 pin of the U12 in parallel, a grounded C45 and a grounded C46 are arranged between a 5 pin and a 8 pin of the U12 in parallel, the 8 pin of the U12 is connected with 5V, a 2 pin of the U12 is connected with a 43 pin of the U29, and a 3 pin of the U12 is connected with a 42 pin of the U29.
7. The multifunctional two-wheeled, three-wheeled electric vehicle BMS communication test data recorder according to claim 6, wherein: the communication isolation output circuit further comprises a U9, wherein the 1 pin of the U9 is connected with an R15, the 2 pin of the U9 is connected with the 3 pin of the U29, and the 4 pin of the U9 is connected with an R35.
8. The multifunctional two-wheeled, three-wheeled electric vehicle BMS communication test data recorder according to claim 7, wherein: the communication isolation output circuit further comprises a U8, a wiring terminal COM1 and a wiring terminal COM3, wherein the 4 pin of the U9 is connected to the 2 pin and the 3 pin of the U8, the 8 pin of the U8 is connected with 5V and is provided with C24 and C25 in parallel, an R22 is connected between the 6 pin and the 7 pin of the U8, the two ends of the R22 are respectively connected with an R21 and an R20, one end of the R22 is connected to the 1 pin of the COM3, the other end of the R22 is connected to the 2 pin of the CON3, the 3 pin of the CON3 is connected to the 3 pin of the COM1, and the 4 pin of the COM3 is connected to the 2 pin of the COM 1.
9. The multifunctional two-wheeled, three-wheeled electric vehicle BMS communication test data recorder according to claim 1, characterized in that: the power supply comprises a U3, a U4, wherein the U3 is connected with the U4 through a 5V connection mode, an R25 is connected between an input end and an output end of the U3, an output end of the U3 is connected with a C17 and a C18 which are arranged in parallel, an R43 is connected between a 1 pin and a 3 pin of the U4, an R44 is connected between a 2 pin and a 4 pin of the U4, a C130 and a C14 which are arranged in parallel are connected onto the 2 pin of the U4, a C15 and a C16 which are arranged in parallel are connected onto the 4 pin of the U4, and one ends of the C130, the C14, the C15, the C16, the C17 and the C18 are grounded.
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