CN210377101U - Vehicle-mounted gateway controller - Google Patents
Vehicle-mounted gateway controller Download PDFInfo
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- CN210377101U CN210377101U CN201921585841.8U CN201921585841U CN210377101U CN 210377101 U CN210377101 U CN 210377101U CN 201921585841 U CN201921585841 U CN 201921585841U CN 210377101 U CN210377101 U CN 210377101U
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Abstract
The utility model discloses an on-vehicle gateway controller comprises power management unit, CAN communication unit, MCU unit, sensor signal processing unit and connector. The power management unit comprises 4 paths of power outputs (2 paths of 5V outputs, 1 path of 3.3V outputs and 1 path of 1.2V outputs). The CAN communication unit comprises a 3-path CAN communication conversion circuit. The MCU unit comprises an MCU chip, an external crystal oscillator and a programming debugging interface. The sensor signal processing unit comprises 5 paths of high-precision analog quantity signal circuits. The connector comprises a CAN communication signal connector and a sensor connector. Through the above, the utility model discloses CAN realize that 3 ways CAN bus connects simultaneously, satisfy 5 ways analog quantity sensor's power supply and signal acquisition. The circuit structure is simple, the specificity is strong, and the method is suitable for debugging and calibrating the automobile chassis brake system.
Description
Technical Field
The utility model relates to a technical field of controller especially relates to an on-vehicle gateway controller.
Background
With the increasing complexity of automobile electric control systems, point-to-point links are adopted among automobile electric control units, so that the number of wiring harnesses in an automobile is increased. To ensure reliability and safety, great difficulties are involved in the design and manufacture of automobiles. Therefore, in order to reduce vehicle interconnections, achieve data sharing and rapid exchange, and improve reliability, the vehicle bus is widely used. In order to ensure normal and reliable CAN communication of bus signals of the electric control unit, an on-board gateway controller is required.
In the process of debugging and calibrating a product, a gateway is required to be used for configuring and testing a controller and acquiring a pressure signal of a hydraulic circuit, and the controller cannot read a relevant pressure signal from a bus because a pressure sensor is externally connected with testing equipment. The existing gateway equipment CAN not meet the requirements of simultaneous acquisition of CAN communication and multiple sensors, and a plurality of controllers are often required to be installed for testing in order to meet the requirement of test calibration, so that the equipment wiring is complex, and the operation of debugging personnel is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a vehicle-mounted gateway controller, CAN realize that the CAN communication of multichannel is connected simultaneously, satisfies 5 ways analog quantity sensor's power supply and signal acquisition. The circuit has simple structure and is suitable for debugging and calibrating the automobile chassis brake system.
In order to solve the technical problem, the utility model discloses a technical scheme be: the intelligent power supply comprises a power supply management unit, a CAN communication unit, an MCU unit, a sensor signal processing unit and a connector. The power management unit comprises 4 paths of power outputs (2 paths of 5V outputs, 1 path of 3.3V outputs and 1 path of 1.2V outputs). The CAN communication unit comprises a 3-path CAN communication conversion circuit. The MCU unit comprises an MCU chip, an external crystal oscillator and a programming debugging interface. The sensor signal processing unit comprises 5 paths of high-precision analog quantity signal circuits. The connector comprises a CAN communication signal connector and a sensor connector.
In a preferred embodiment of the present invention, the power management unit is connected to the CAN communication unit, the MCU unit, and the sensor unit.
In a preferred embodiment of the present invention, the CAN communication unit is connected to the power management unit, the MCU unit and the connector.
In a preferred embodiment of the present invention, the sensor unit is connected to the power management unit, the MCU unit and the connector unit.
The utility model has the advantages that: the simultaneous connection of 3-path CAN communication is realized, and the use requirements of various CAN gateways are met; and the power supply and signal acquisition of the 5-path analog quantity sensor meet the requirements of the acquisition of pressure signals of four wheels and a main cylinder. The circuit has simple structure and is suitable for debugging and calibrating the automobile chassis brake system.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a block diagram of a preferred embodiment of the present invention;
FIG. 2 is a diagram of an on-board gateway controller system connection;
FIG. 3 is a circuit diagram of a power management module;
FIG. 4 is a circuit diagram of an MCU module;
FIG. 5 is a circuit diagram of a CAN communication module;
fig. 6 is a circuit diagram of a sensor processing signal.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the present invention includes:
a vehicle gateway controller comprises a power management unit, a CAN communication unit, an MCU unit, a sensor signal processing unit and a connector. The power management unit comprises 4 paths of power outputs (2 paths of 5V outputs, 1 path of 3.3V outputs and 1 path of 1.2V outputs). The CAN communication unit comprises a 3-path CAN communication conversion circuit. The MCU unit comprises an MCU chip, an external crystal oscillator and a programming debugging interface. The sensor signal processing unit comprises 5 paths of high-precision analog quantity signal circuits. The connector comprises a CAN communication signal connector and a sensor connector.
4 power supplies are output after the 12V power supply passes through the power management module, 3.3V and 1.2V are used as power supplies of the MCU, and 2 power supplies of 5V are respectively used for supplying power for the CAN communication module and the sensor. The sensor signal processing circuit is connected to the MCU, and the MCU sends acquired sensor signals to the controller through the CAN communication module. The connector uses the Lemo connector, and the contact nature is good, makes things convenient for the dismouting.
As shown in fig. 2, the vehicle-mounted gateway controller is connected to the sensor, the controller, and the bus system by hard wires, and the gateway controller transmits a sensor signal to the controller via the CAN bus. The bus signal enters the MCU after passing through the CAN communication module, and the MCU is analyzed and then sent to the controller through another CAN communication circuit.
Referring to fig. 3, the power management module mainly comprises a dedicated chip, a capacitor, a resistor, an inductor, a diode, and a MOSFET, and the circuit mainly functions to convert a 12V voltage into 2-way 5V, 1-way 3.3V, and 1-way 1.2V for supplying power to the MCU, the CAN communication module, and the sensor; this circuit carries out the SPI communication with MCU, carries out the function setting through MCU to power management module to realize MCU and power module mutual diagnosis.
Referring to fig. 4, the MCU module mainly includes an MCU chip, a crystal oscillator, a filter capacitor, and a programming debugging interface, and the circuit mainly functions to run a software program, collect sensor signals, and analyze CAN communication information.
Referring to fig. 5, the CAN communication unit mainly includes a CAN conversion chip, a terminal resistor, a capacitor, a TVS tube, and a common mode inductor, and the circuit mainly functions to decode a CAN signal;
referring to fig. 6, the sensor signal processing unit mainly includes a resistor and a capacitor, and the main function of the circuit is to filter the sensor signal.
To sum up, the vehicle-mounted gateway controller of the utility model realizes simultaneous connection of 3-way CAN communication, and is compatible with the use requirements of various CAN gateways; and the power supply and signal acquisition of the 5-path analog quantity sensor meet the requirements of the acquisition of pressure signals of four wheels and a main cylinder. The circuit has simple structure and is suitable for debugging and calibrating the automobile chassis brake system.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (6)
1. A vehicle gateway controller is characterized by comprising a power management unit, a CAN communication unit, an MCU unit, a sensor signal processing unit and a connector; the power supply management unit comprises 4 paths of power supply outputs, namely 2 paths of 5V outputs, 1 path of 3.3V outputs and 1 path of 1.2V outputs; the CAN communication unit comprises a 3-path CAN communication conversion circuit; the MCU unit comprises an MCU chip, an external crystal oscillator and a programming debugging interface; the sensor signal processing unit comprises 5 paths of high-precision analog quantity signal circuits; the connector comprises a CAN communication signal connector and a sensor connector.
2. The vehicle gateway controller of claim 1, wherein the power management circuit is further coupled to an MCU module, a CAN communication module, and a sensor module.
3. The vehicle gateway controller of claim 1, wherein the MCU module is further connected to a power management module, a CAN communication module, and a sensor signal processing module.
4. The vehicle gateway controller of claim 1, wherein the CAN communication module is coupled to the power management module and the MCU module.
5. The vehicle gateway controller of claim 1, wherein the sensor signal processing module is further connected to the MCU module and the power management module.
6. The on-board gateway controller of claim 1, wherein the connector module employs a Lemo connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921585841.8U CN210377101U (en) | 2019-09-23 | 2019-09-23 | Vehicle-mounted gateway controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921585841.8U CN210377101U (en) | 2019-09-23 | 2019-09-23 | Vehicle-mounted gateway controller |
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| CN210377101U true CN210377101U (en) | 2020-04-21 |
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| CN201921585841.8U Active CN210377101U (en) | 2019-09-23 | 2019-09-23 | Vehicle-mounted gateway controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114785638A (en) * | 2022-03-31 | 2022-07-22 | 奥特酷智能科技(南京)有限公司 | Vehicle-mounted edge gateway |
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2019
- 2019-09-23 CN CN201921585841.8U patent/CN210377101U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114785638A (en) * | 2022-03-31 | 2022-07-22 | 奥特酷智能科技(南京)有限公司 | Vehicle-mounted edge gateway |
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