CN220305657U - Real-time control device for secondary station of automobile power transmission system - Google Patents
Real-time control device for secondary station of automobile power transmission system Download PDFInfo
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- CN220305657U CN220305657U CN202321875625.3U CN202321875625U CN220305657U CN 220305657 U CN220305657 U CN 220305657U CN 202321875625 U CN202321875625 U CN 202321875625U CN 220305657 U CN220305657 U CN 220305657U
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- 101150005660 PHY1 gene Proteins 0.000 description 3
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- 238000005259 measurement Methods 0.000 description 3
- 238000013480 data collection Methods 0.000 description 2
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- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The utility model relates to the field of new energy automobiles, in particular to a secondary station real-time control device of an automobile power transmission system. The ESC module comprises a slave station controller, a slave station crystal oscillator, a slave station electronic pulse memory, a first external signal interface chip and a second external signal interface chip, wherein the slave station controller is respectively connected with the slave station crystal oscillator, the slave station electronic pulse memory, the first external signal interface chip and the second external signal interface chip, the first external signal interface chip is connected with a first interface through a first network isolation transformer, the second external signal interface chip is connected with a second interface through a second network isolation transformer, and one of the first interface or the second interface is an input data interface, and the other is an output data interface. The utility model can control and collect data of the automobile power transmission system in real time through the slave station.
Description
Technical Field
The utility model relates to the field of new energy automobiles, in particular to a secondary station real-time control device of an automobile power transmission system.
Background
In the development process of the new energy automobile, real-time monitoring of the running state of the whole automobile, diagnosis of faults, continuous recording of long-time test running data of the whole automobile, offline analysis and the like are required. The importance of the measurement and control technology of the power transmission system of the new energy automobile is increasingly outstanding, the design period of the automobile can be obviously shortened, the research and development cost is reduced, and the performance of the automobile is optimized, so that the development of the key technology and the product of the high-speed measurement and control platform of the power transmission system of the new energy automobile has very important significance.
The utility model discloses a hybrid electric vehicle power distribution control device (application number 202022338278.3), which comprises an automobile engine, an HV battery pack, a power management controller and an automobile motor, wherein the automobile engine is connected with the automobile motor through a transmission shaft, the automobile motor is connected with a transmission through the transmission shaft, the side surface of the automobile engine is connected with the power motor, the left end of the power motor is connected with an auxiliary battery, the automobile motor is connected with the HV battery pack through a high-voltage connecting wire harness, the upper part of the high-voltage connecting wire harness is provided with the power management controller and an electric power electronic converter, the HV battery pack is connected with a frequency converter through the high-voltage connecting wire harness, and the lower side of the frequency converter is connected with a hybrid power transmission bridge. However, the power management controller of the patent manages fixed equipment or devices, cannot be arranged in a modularized mode or in data communication, is inconvenient for quickly adjusting data acquisition or control, and is inconvenient for testing the whole vehicle or using the whole vehicle.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a secondary station real-time control device of an automobile power transmission system. The data acquisition and embedded module is connected with the ESC module through an SPI interface or an FSMC interface, and the data acquisition and embedded module is also connected with the ESC module through a plurality of external interrupt data lines. The device can collect sensor signals and realize remote control and data collection of the control device, so that the slave station can control and collect data of the automobile power transmission system in real time.
The technical scheme of the utility model is as follows: the utility model provides a real-time control device of secondary station of automobile power transmission system, includes data acquisition and embedded module, ESC module, and data acquisition and embedded module pass through interface connection with ESC module, and data acquisition and embedded module are connected with ESC module through many outside interrupt data lines, its characterized in that: the ESC module comprises a slave station controller, a slave station crystal oscillator, a slave station electronic pulse memory, a first external signal interface chip and a second external signal interface chip, wherein the slave station controller is respectively connected with the slave station crystal oscillator, the slave station electronic pulse memory, the first external signal interface chip and the second external signal interface chip, the first external signal interface chip is connected with the first interface through a first network isolation transformer, the second external signal interface chip is connected with the second interface through a second network isolation transformer, and one of the first interface or the second interface is an input data interface and the other is an output data interface; the data acquisition and embedded module comprises a main control device, a USB (universal serial bus) conversion serial port, a second crystal oscillator, a second electronic pulse memory, I/O equipment, data acquisition equipment, a control device and a sensor, wherein the main control device is connected with the USB conversion serial port, the second crystal oscillator, the second electronic pulse memory, the I/O equipment and the data acquisition equipment, the data acquisition equipment is connected with the sensor, the control device is connected with the main control device through the I/O equipment, and the data acquisition equipment converts sensor signals into digital signals for the main control device to acquire and transmit the digital signals to a slave station controller, and control signals issued by the slave station controller are transmitted to the control device through the main control device by the I/O equipment.
A slave station real-time control device of an automobile power transmission system, which is characterized in that: the data acquisition and embedded module is connected with the ESC module through an SPI interface or an FSMC interface.
A slave station real-time control device of an automobile power transmission system, which is characterized in that: the slave station controller is one of an ET1100 chip, an AM3359 chip or an FPGA device.
A slave station real-time control device of an automobile power transmission system, which is characterized in that: the main control device is a singlechip or a DSP chip.
A slave station real-time control device of an automobile power transmission system, which is characterized in that: the slave station real-time control devices are connected in series, final data are input into the master station after the slave station real-time control devices are connected in series, and n slave station data are connected through uplink and downlink transmission.
A slave station real-time control device of an automobile power transmission system, which is characterized in that: the digital bridge, the first filtering, the isolation analog amplifier, the proportional operational amplifier and the second filter circuit are sequentially connected in sequence.
Drawings
Fig. 1 is a schematic diagram of a secondary station.
Fig. 2 is a schematic diagram of a master-slave connection.
FIG. 3 is a schematic diagram of a data acquisition device.
Description of the embodiments
The technical scheme of the utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, the secondary station real-time control device of the automobile power transmission system comprises a data acquisition and embedded module and an ESC module, wherein the data acquisition and embedded module is connected with the ESC module through an SPI interface or an FSMC interface, and the data acquisition and embedded module is also connected with the ESC module through a plurality of external interrupt data lines, so that the data acquisition and embedded module and the ESC module can transmit data acquired by the data acquisition and embedded module to the ESC module through the existing interface communication program, and control data of the ESC module is transmitted to the data acquisition and embedded module.
As shown in fig. 1, the ESC module of the present utility model includes a slave station controller, a slave station crystal oscillator, a slave station electronic pulse memory EEPROM, a first external signal interface chip PHY0, and a second external signal interface chip PHY1, wherein the slave station controller is connected with the slave station crystal oscillator, the slave station electronic pulse memory, the first external signal interface chip PHY0, and the second external signal interface chip PHY1, respectively, the first external signal interface chip PHY0 is connected with a first interface rj45 through a first network isolation transformer, the second external signal interface chip PHY1 is connected with a second interface rj45 through a second network isolation transformer, and one of the first interface rj45 or the second interface rj45 is an input data interface, and the other is an output data interface. The slave controller may be an ET1100 chip, an AM3359 chip, or an FPGA device.
As shown in FIG. 1, the data acquisition and embedded module comprises a main control device, a USB (universal serial bus) conversion serial port, a second crystal oscillator, a second electronic pulse memory EEPROM (electrically erasable programmable read Only memory), I/O (input/output) equipment, data acquisition equipment, a control device and a sensor, wherein the main control device can be an STM32 singlechip, a DSP (digital signal processor) chip and the like, the main control device is connected with the USB conversion serial port, the second crystal oscillator, the second electronic pulse memory EEPROM, the I/O equipment and the data acquisition equipment, the data acquisition equipment is connected with one or more sensors, the control device is connected with the main control device through the I/O equipment, the data acquisition equipment converts one or more sensor signals into digital signals for the main control device to acquire and transmit the digital signals to a slave station controller, and control signals issued by the slave station controller are transmitted to the control device through the main control device by the I/O equipment.
In the working process of the utility model, an SPI interface is adopted for data transmission between the slave station microprocessor and the slave station controller, the sensor is connected with the main control device through the data acquisition device, the main control device directly controls the I/O device according to the main station command input by the slave station controller, and then the I/O device controls the control device. The output of the controller can be transmitted to the main control device through the I/O equipment and then transmitted to the main station through the slave station controller, so that the device can collect sensor signals and realize remote control and data collection of the control device, and the slave station can control and collect data of an automobile power transmission system in real time.
The utility model can connect a plurality of slave stations in series for use, as shown in figure 2, and after the slave stations are connected in series, the final data are input into the master station, namely, n slave stations are connected through uplink and downlink transmission, so that an automobile power transmission system can be designed in a split module mode, the design and control of a split system circuit are simpler and more convenient, meanwhile, the functions are added more easily, the system reorganization can be completed only by adding a new slave station, and the utility model is suitable for the development of a new energy automobile power system, namely, the design scheme of the rapid modularized combination change can be adopted, and the utility model can also be directly applied to the automobile power system. When a plurality of slave stations and a master station work, a communication protocol and a communication mode of the slave stations are selected, and after the configuration of the slave stations is completed according to the situation, a slave station system has basic conditions for communication with the master station. The slave station initializes the master control device and the slave station controller, and can enter a communication main loop to realize data communication with the master station. The master station can be realized by an industrial personal computer integrated with an Ethernet interface, and the master station system module mainly comprises an application program interface module, a master station module and a network card device driving module, which are all known in the prior art by the person in the field, such as the design and development of an EtherCAT network structure adopting a master-slave mode; the high-speed control software platform is designed and developed by utilizing an industrial personal computer and LabVIEW software and adopting a multithreading technology and a thread synchronization technology, and lays a foundation for integrated development of the high-speed control platform of the power transmission system of the new energy automobile. The master station and the slave station work cooperatively to complete the reading and writing of data and realize the communication between the master station and the slave station. The master station transmits the receiving information by using an Ethernet device, namely an industrial personal computer, and the slave station processes data by using an embedded system and the data acquisition device developed above. In the working process of the EtherCAT system, a master station can send messages, slave stations in the network can match and read and write the messages sent by the master station one by one, and then the messages processed by the slave stations can return to the master station.
As shown in FIG. 3, the data acquisition device of the utility model comprises a digital bridge, a first filter, an isolated analog amplifier, a proportional operational amplifier and a second filter circuit, wherein the digital bridge, the first filter, the isolated analog amplifier, the proportional operational amplifier and the second filter circuit are sequentially connected in sequence.
As shown in fig. 3, the digital bridge of the present utility model includes a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4, where the first resistor R1 and the second resistor R2 are connected in parallel to a power supply, and the other end of the first resistor R1 is connected to an anode of an acquisition signal PT and a fifth resistor R5 of a first filter; the other end of the second resistor R2 is connected with the output of the sixth resistor R6 and the output of the third resistor R3 connected with the fourth resistor R4 in parallel, and the other end of the third resistor R3 connected with the fourth resistor R4 in parallel is connected with the negative electrode of the acquisition signal PT. According to the utility model, the resistance values of the first resistor R1 and the second resistor R2 can be 7.5KΩ, and the third resistor R3 and the fourth resistor R4 can be 20Ω, so that small resistance values can be measured, small changes can be detected, and the precision is improved. The first filtering includes a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, and a fourth capacitor C4, where the first capacitor C1 is connected between the fifth resistor R5 and the sixth resistor R6, the second capacitor C2 is connected between the sixth resistor R6 and the common ground Vss, the fourth capacitor C4 is connected between the fifth resistor R5 and the common ground Vss, another section of the fifth resistor R5 and the sixth resistor R6 is connected to an input end of the isolation analog amplifier, the circuit filters analog signals, the fifth resistor R5 and the sixth resistor R6 may be 10Ω, and the first capacitor C1, the second capacitor C2, and the fourth capacitor C4 may be 22nF. The isolation analog amplifier U1 can be a differential isolation operational amplifier CA-IS1200G, the input ground of the isolation analog amplifier U1 IS connected with a common ground terminal, and the output ground of the isolation analog amplifier U1 IS connected with an analog ground AGND; the output of the isolation analog amplifier U1 is connected to the seventh resistor R7 and the eighth resistor R8 of the proportional operational amplifier, respectively. The proportional operational amplifier comprises a seventh resistor R7 and an eighth resistor R8, wherein the eighth resistor R8 is connected with the positive input end of the amplifier U2, the seventh resistor R7 is connected with the negative input end of the amplifier U2, the positive input end of the amplifier U2 is connected with the analog ground AGND through a ninth resistor R9, the negative input end of the amplifier U2 is connected with the output end of the amplifier U2 through a tenth resistor R10, and the output end of the amplifier U2 is connected with the eleventh resistor R11 of the second filter circuit. The amplifier U2 of the present utility model may be an LMV3211DBVR amplifier, and the seventh resistor R7, the eighth resistor R8, the ninth resistor R9, and the tenth resistor R10 may be resistors of 10kΩ. The second filter circuit of the utility model comprises an eleventh resistor R11 and a seventh capacitor C7, wherein the eleventh resistor R11 and the seventh capacitor C7 are connected in series and then are connected with an analog ground AGND, and the connection part of the eleventh resistor R11 and the seventh capacitor C7 is an ADC sampling part.
As shown in FIG. 3, the data acquisition equipment of the utility model can measure small resistance values through circuits such as a digital bridge, a secondary filter circuit, isolation amplification, proportion operation and the like, can detect small changes, improves the precision, and has higher anti-interference capability.
The device is suitable for real-time control of the power and transmission system high-speed control platform of the new energy automobile; the high-speed control platform of the high-speed power transmission system of the new energy automobile can be developed by utilizing the high-speed data acquisition and real-time control device, and the functions of testing the high-speed transmission components of the new energy automobile, testing the high-speed driving motor system of the new energy automobile, testing the medium-heavy type longitudinal gearbox of the new energy automobile and testing the bridge/power assembly of the new energy automobile are realized. The device of the utility model lays a foundation for building a high-speed control platform of the power transmission system of the new energy automobile, realizes the improvement of the measurement and control technology of the power transmission system of the new energy automobile, and provides technical support for the rapid development of the new energy automobile industry.
Claims (6)
1. The utility model provides a real-time control device of secondary station of automobile power transmission system, includes data acquisition and embedded module, ESC module, and data acquisition and embedded module pass through interface connection with ESC module, and data acquisition and embedded module are connected with ESC module through many outside interrupt data lines, its characterized in that: the ESC module comprises a slave station controller, a slave station crystal oscillator, a slave station electronic pulse memory, a first external signal interface chip and a second external signal interface chip, wherein the slave station controller is respectively connected with the slave station crystal oscillator, the slave station electronic pulse memory, the first external signal interface chip and the second external signal interface chip, the first external signal interface chip is connected with the first interface through a first network isolation transformer, the second external signal interface chip is connected with the second interface through a second network isolation transformer, and one of the first interface or the second interface is an input data interface and the other is an output data interface; the data acquisition and embedded module comprises a main control device, a USB (universal serial bus) conversion serial port, a second crystal oscillator, a second electronic pulse memory, I/O equipment, data acquisition equipment, a control device and a sensor, wherein the main control device is connected with the USB conversion serial port, the second crystal oscillator, the second electronic pulse memory, the I/O equipment and the data acquisition equipment, the data acquisition equipment is connected with the sensor, the control device is connected with the main control device through the I/O equipment, and the data acquisition equipment converts sensor signals into digital signals for the main control device to acquire and transmit the digital signals to a slave station controller, and control signals issued by the slave station controller are transmitted to the control device through the main control device by the I/O equipment.
2. A secondary station real-time control device of an automotive power transmission system according to claim 1, characterized in that: the data acquisition and embedded module is connected with the ESC module through an SPI interface or an FSMC interface.
3. A secondary station real-time control device of an automotive power transmission system according to claim 1, characterized in that: the slave station controller is one of an ET1100 chip, an AM3359 chip or an FPGA device.
4. A secondary station real-time control device of an automotive power transmission system according to claim 1, characterized in that: the main control device is a singlechip or a DSP chip.
5. A secondary station real-time control device of an automotive power transmission system according to claim 1, characterized in that: the slave station real-time control devices are connected in series, final data are input into the master station after the slave station real-time control devices are connected in series, and n slave station data are connected through uplink and downlink transmission.
6. A secondary station real-time control device of an automotive power transmission system according to claim 1, characterized in that: the digital bridge, the first filtering, the isolation analog amplifier, the proportional operational amplifier and the second filter circuit are sequentially connected in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875625.3U CN220305657U (en) | 2023-07-17 | 2023-07-17 | Real-time control device for secondary station of automobile power transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875625.3U CN220305657U (en) | 2023-07-17 | 2023-07-17 | Real-time control device for secondary station of automobile power transmission system |
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| CN220305657U true CN220305657U (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321875625.3U Active CN220305657U (en) | 2023-07-17 | 2023-07-17 | Real-time control device for secondary station of automobile power transmission system |
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| CN (1) | CN220305657U (en) |
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2023
- 2023-07-17 CN CN202321875625.3U patent/CN220305657U/en active Active
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