CN211117536U - Domestic microcontroller gearbox shift controller TCU system - Google Patents
Domestic microcontroller gearbox shift controller TCU system Download PDFInfo
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- CN211117536U CN211117536U CN201922378744.8U CN201922378744U CN211117536U CN 211117536 U CN211117536 U CN 211117536U CN 201922378744 U CN201922378744 U CN 201922378744U CN 211117536 U CN211117536 U CN 211117536U
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Abstract
The utility model discloses a domestic microcontroller gearbox shift controller TCU system has solved traditional TCU and has all adopted the problem that foreign MCU and power device could realize. The utility model discloses a MCU, drive IC, CAN bus and isolation opto-coupler IC etc.. The utility model discloses a power drive adopts domestic MOS and EG3002 driver design, and steerable output valve has protective function such as short circuit, overflows simultaneously, and the effectual traditional TCU that has solved all adopts the problem that foreign MCU and power device could realize, for the development of china's vehicle control produces great influence, uses the vehicle kind many, and the performance detection is reliable and stable, and the cost is lower, has very big popularization and using value.
Description
Technical Field
The invention relates to a TCU system, in particular to a TCU system of a domestic microcontroller gearbox gear shifting controller.
Background
With the rapid development of science and technology in China and the rapid advance of the automobile electronic industry, a new-era automobile control system needs to be independently developed, and the way is long; as a core unit for controlling a modern automobile gearbox, TCU (transmission control unit) is developed by independent innovation with a great deal of manpower in China. The reasonable design and autonomous development of the TCU are urgent. The TCU is related to a speed change system during the running process of a vehicle, and is particularly important for an AT system in a modern vehicle.
The traditional TCU adopts a foreign MCU and a power device to realize the problem, is greatly limited, and has the specific limitation that the investment on economic cost is large, and the domestic TCU system AT the present stage can not complete the control requirement on AT.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the traditional TCU adopts a foreign MCU and a power device to realize the control, and the specific limitation is that the investment on economic cost is large, and the domestic TCU system AT the present stage cannot meet the control requirement on AT. The invention provides a TCU (thyristor control unit) system of a domestic microcontroller gearbox, which solves the problems.
The MCU selects a domestic microcontroller with the model of GD32F450, the isolation optocoupler IC selects the model of 6N137, the drive IC selects the model of EG3002, the acquisition IC selects the model of MC2543, connection with peripheral drive is realized through the domestic isolation optocoupler IC6N137, the protection performance is strong, and the acquisition part adopts a domestic AD multichannel conversion IC with the model of MC 2543; the power drive adopts the design of a domestic MOS and EG3002 driver, can control an output valve and has the protection functions of short circuit, overcurrent and the like. The problem that the traditional TCU can be realized only by adopting a foreign MCU and a power device is effectively solved, great influence is generated on the development of vehicle control in China, the used vehicles are various, the performance detection is stable and reliable, the cost is low, and the method has great popularization and application values.
The invention is realized by the following technical scheme:
a domestic microcontroller gearbox gear shifting controller TCU system comprises an MCU, a drive IC, a CAN bus and an isolation optocoupler IC, wherein output data of the MCU is transmitted to the drive IC after passing through the isolation optocoupler IC;
the MCU adopts a domestic GD32F450 microcontroller;
the isolation optocoupler IC adopts 6N 137;
EG3002 is adopted as the drive IC;
MCU with between the isolation opto-coupler IC, isolation opto-coupler IC with all adopt CAN bus connection, data output route between the drive IC: the 16 pins of the GD32F450 are connected with the 2 pins of the 6N137, and the 4 pins of the 6N137 are connected with the 3 pins of the EG 3002;
Further, still including gathering IC and a plurality of sensor, gather a plurality of sensor of IC control, the sensor is gathered the multiple data that vehicle transmission produced, the sensor includes liquid level detection sensor, temperature detection sensor, pressure detection sensor and engine speed detection sensor, the sensor is through gathering IC control output data collection MCU, the sensor with pass through between the MCU isolation opto-coupler IC connects, and it is MC2543 to gather the IC model.
Furthermore, the debugging device also comprises a debugging serial port, the debugging serial port is used for debugging the program of the MC2543, and the debugging serial port is accessed to a pin 17 of the MC 2543.
The vehicle transmission control system further comprises a control valve, the MCU collects various data of the vehicle transmission through the isolation optocoupler IC, the MCU analyzes the collected various data and then automatically controls the control valve, obtains a result of whether the current vehicle running state is matched with the engine state, and reports the result to the vehicle ECU system through the CAN bus.
Further, the driving IC further includes a detection circuit and a detection protection circuit, EG3002 is a gate or base driving IC of a high-power bipolar transistor, and the detection circuit and the detection protection circuit are as follows:
the detection circuit is as follows: a 7 pin of the EG3002 is connected with a resistor R1 with the resistance of 1ohm and then is output to a G pole of an MOS tube Q1 in parallel with a 6 pin of the EG3002, the MOS tube Q1 is an N-channel MOSFET, an S pole of the MOS tube Q1 is connected with a detection circuit, the detection circuit is a circuit in parallel with the resistor R2 after a current detection resistor is grounded, the other pin of the resistor R2 is connected with a 2 pin VCP + of the EG3002, the resistance of the resistor R2 is 1kohm, and the resistance of the current detection resistor grounded is 0.01 ohm;
the detection protection circuit is as follows: the D pole of the MOS tube Q1 is output to a transformer with the functions of isolation and overload protection, and the functions of isolation and overload protection are realized by the cooperation of a one-way diode and a capacitor;
the MOS transistor Q1 has a parasitic diode pointing from the S pole to the D pole.
The method comprises the steps of utilizing a domestic GD32F450 series microcontroller as a TCU core control part, utilizing an isolation sampling scheme to collect pressure, temperature and related rotating speed signals of a vehicle gearbox, carrying out GD32F450 MCU internal processing, automatically controlling a control valve by the MCU according to collected data, utilizing the collected data to carry out vehicle data analysis, deciding whether the current vehicle running state is matched with an engine state, and utilizing CAN communication to report related processing information to a vehicle system.
The invention has the following advantages and beneficial effects:
the invention has the control function of a domestic GD32F450 microcontroller, realizes the connection with the external drive through a domestic isolation optocoupler IC, has strong protection performance, and adopts a domestic AD multi-channel conversion IC in the acquisition part;
the power drive of the invention adopts the design of a domestic MOS and EG3002 driver, can control an output valve, has the protection functions of short circuit, overcurrent and the like, effectively solves the problem that the traditional TCU can be realized only by adopting a foreign MCU and a power device, has great influence on the development of vehicle control in China, has various types of vehicles, stable and reliable performance detection and lower cost, and has great popularization and application values.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a functional diagram of the system structure of the present invention.
FIG. 2 is a circuit diagram of GD32F450 of the present invention.
FIG. 3 is a 6N137 circuit diagram of the present invention.
Fig. 4 is a circuit diagram of EG3002 according to the present invention.
Detailed Description
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive changes, are within the scope of the present invention.
A domestic microcontroller gearbox gear shift controller TCU system is shown in figure 1 and comprises an MCU, a drive IC, a CAN bus and an isolation optocoupler IC, wherein output data of the MCU is transmitted to the drive IC after passing through the isolation optocoupler IC;
the MCU adopts a domestic GD32F450 microcontroller;
the isolation optocoupler IC adopts 6N 137;
EG3002 is adopted as the drive IC;
as shown in fig. 2, the MCU and the isolation optocoupler IC, the isolation optocoupler IC and the driver IC are all connected by a CAN bus, and the data output path is: the 16 pins of the GD32F450 are connected with the 2 pins of the 6N137, and the 4 pins of the 6N137 are connected with the 3 pins of the EG 3002;
as shown in FIG. 3, pin 1 of 6N137 is connected to +5 volts V0 through a resistor having a resistance of 39 ohms, pin 3 of 6N137 is connected to ground, and pin 4 of 6N137 is also simultaneously connected to 3.3 volts VCC through a resistor having a resistance of 1 kohm.
Further, still including gathering IC and a plurality of sensor, gather a plurality of sensor of IC control, the sensor is gathered the multiple data that vehicle transmission produced, the sensor includes liquid level detection sensor, temperature detection sensor, pressure detection sensor and engine speed detection sensor, the sensor is through gathering IC control output data collection MCU, the sensor with pass through between the MCU isolation opto-coupler IC connects, and it is MC2543 to gather the IC model.
Furthermore, the debugging device also comprises a debugging serial port, the debugging serial port is used for debugging the program of the MC2543, and the debugging serial port is accessed to a pin 17 of the MC 2543.
The vehicle transmission control system further comprises a control valve, the MCU collects various data of the vehicle transmission through the isolation optocoupler IC, the MCU analyzes the collected various data and then automatically controls the control valve, obtains a result of whether the current vehicle running state is matched with the engine state, and reports the result to the vehicle ECU system through the CAN bus.
Further, as shown in fig. 4, the driving IC further includes a detection circuit and a detection protection circuit, EG3002 is a gate or base driving dedicated IC of the high power bipolar transistor, and the detection circuit and the detection protection circuit are as follows:
the detection circuit is as follows: a 7 pin of the EG3002 is connected with a resistor R1 with the resistance of 1ohm and then is output to a G pole of an MOS tube Q1 in parallel with a 6 pin of the EG3002, the MOS tube Q1 is an N-channel MOSFET, an S pole of the MOS tube Q1 is connected with a detection circuit, the detection circuit is a circuit in parallel with the resistor R2 after a current detection resistor is grounded, the other pin of the resistor R2 is connected with a 2 pin VCP + of the EG3002, the resistance of the resistor R2 is 1kohm, and the resistance of the current detection resistor grounded is 0.01 ohm;
the detection protection circuit is as follows: the D pole of the MOS tube Q1 is output to a transformer with the functions of isolation and overload protection, and the functions of isolation and overload protection are realized by the cooperation of a one-way diode and a capacitor;
the MOS transistor Q1 has a parasitic diode pointing from the S pole to the D pole.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A domestic microcontroller gearbox gear shift controller TCU system is characterized by comprising an MCU, a drive IC, a CAN bus and an isolation optocoupler IC, wherein output data of the MCU is transmitted to the drive IC after passing through the isolation optocoupler IC;
the MCU adopts a domestic GD32F450 microcontroller;
the isolation optocoupler IC adopts 6N 137;
EG3002 is adopted as the drive IC;
the MCU with between the isolation opto-coupler IC, isolation opto-coupler IC with all adopt CAN bus connection between the drive IC, 6N 137's 1 foot is through the resistance connection +5 volt voltage V0 that the resistance is 39ohm, 6N 137's 3 feet ground connection, 6N 137's 4 feet still simultaneously through the resistance connection 3.3 volt voltage VCC of 1kohm resistance.
2. The TCU system of claim 1, further comprising a collection IC and a plurality of sensors, wherein the collection IC controls the plurality of sensors, the sensors collect a plurality of data generated by a vehicle transmission, the sensors comprise a liquid level detection sensor, a temperature detection sensor, a pressure detection sensor and an engine speed detection sensor, the sensors output collected data to the MCU through collection IC control, the sensors are connected with the MCU through the isolation optocoupler IC, and the collection IC is of an MC2543 type.
3. The TCU system of claim 2, further comprising a debugging serial port, wherein the debugging serial port is used for debugging the program of the MC2543, and the debugging serial port is connected to a pin 17 of the MC 2543.
4. The TCU system of claim 1, wherein the driver IC further comprises a detection circuit and a detection protection circuit, EG3002 is a gate or base driver IC for high power bipolar transistor, the detection circuit and the detection protection circuit are as follows:
the detection circuit is as follows: a 7 pin of the EG3002 is connected with a resistor R1 with the resistance of 1ohm and then is output to a G pole of an MOS tube Q1 in parallel with a 6 pin of the EG3002, the MOS tube Q1 is an N-channel MOSFET, an S pole of the MOS tube Q1 is connected with a detection circuit, the detection circuit is a circuit in parallel with the resistor R2 after a current detection resistor is grounded, the other pin of the resistor R2 is connected with a 2 pin VCP + of the EG3002, the resistance of the resistor R2 is 1kohm, and the resistance of the current detection resistor grounded is 0.01 ohm;
the detection protection circuit is as follows: the D pole of the MOS tube Q1 is output to a transformer with the functions of isolation and overload protection, and the functions of isolation and overload protection are realized by the cooperation of a one-way diode and a capacitor;
the MOS transistor Q1 has a parasitic diode pointing from the S pole to the D pole.
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| CN201922378744.8U CN211117536U (en) | 2019-12-26 | 2019-12-26 | Domestic microcontroller gearbox shift controller TCU system |
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| CN111306292A (en) * | 2019-12-26 | 2020-06-19 | 四川海天仪表电器开发有限公司 | Domestic microcontroller gearbox shift controller TCU system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111306292A (en) * | 2019-12-26 | 2020-06-19 | 四川海天仪表电器开发有限公司 | Domestic microcontroller gearbox shift controller TCU system |
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