CN211930659U - Electric automobile gateway system based on three CAN buses - Google Patents
Electric automobile gateway system based on three CAN buses Download PDFInfo
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- CN211930659U CN211930659U CN202021164174.9U CN202021164174U CN211930659U CN 211930659 U CN211930659 U CN 211930659U CN 202021164174 U CN202021164174 U CN 202021164174U CN 211930659 U CN211930659 U CN 211930659U
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Abstract
The electric automobile gateway system based on the three CAN buses comprises a vehicle control unit and a gateway, wherein the gateway is connected with the vehicle control unit through a first CAN bus, the vehicle control unit is connected with a motor controller through a driving CAN bus, the gateway is connected with an electric power steering controller through a second CAN bus, and the gateway is connected with a remote monitoring terminal through a third CAN bus.
Description
Technical Field
The utility model relates to an electric automobile gateway system based on three routes CAN bus specifically is applicable to optimize network structural design, reduces gateway communication burden.
Background
At present, with the rapid development of electric automobile technology, more and more electric control units are widely applied to electric automobiles. Because the technical parameters and functions of the electric control units are different, if the electric control units are concentrated on one CAN bus, the CAN communication of the whole vehicle CAN be caused to be a problem. Therefore, the gateway system is applied to the electric automobile, the load rate of the CAN bus CAN be effectively reduced, the communication quality of the whole automobile is improved, and the data safety of the whole automobile is enhanced.
Disclosure of Invention
The utility model aims at overcoming the big, the poor problem of data security of CAN line load that exists among the prior art, providing a reduce electric automobile gateway system based on three routes CAN bus that load, data security are strong.
In order to achieve the above purpose, the technical solution of the utility model is that:
a gateway system of an electric automobile based on three CAN buses comprises a vehicle controller, a gateway, a motor controller, an electric power-assisted steering controller and a remote vehicle locking control terminal, wherein the gateway is connected with the vehicle controller through a first CAN bus, the vehicle controller is connected with the motor controller through a driving CAN bus, the gateway is connected with the electric power-assisted steering controller through a second CAN bus, and the gateway is connected with the remote vehicle locking control terminal through a third CAN bus;
the first CAN bus is respectively connected with the combination instrument, the three-in-one controller, the remote monitoring terminal of the whole vehicle plant, the OBD diagnosis interface and the battery management system;
the second CAN bus is respectively connected with an air conditioner compressor, a brake anti-lock system, an automobile low-speed prompt sound system and an automobile body controller;
and the third CAN bus is respectively connected with the user remote monitoring terminal, the driving auxiliary system and the reserved diagnosis interface.
The first CAN bus comprises a first high-bit data line and a first low-bit data line, two ends of the first high-bit data line are respectively connected with two ends of the first low-bit data line through a terminal resistor, the terminal resistors connected with two ends of the first high-bit data line are respectively arranged in the gateway and the whole vehicle controller, and the combination instrument, the three-in-one controller, the whole vehicle plant remote monitoring terminal, the OBD diagnosis interface and the battery management system are connected between the first high-bit data line and the first low-bit data line;
the second CAN bus comprises a second high-bit data line and a second low-bit data line, two ends of the second high-bit data line are respectively connected with two ends of the second low-bit data line through a terminal resistor, the terminal resistors connected with two ends of the second high-bit data line are respectively arranged in the gateway and the electric power-assisted steering controller, and the air-conditioning compressor, the anti-lock braking system, the automobile low-speed prompt sound system and the automobile body controller are connected between the second high-bit data line and the second low-bit data line;
the third CAN bus comprises a third high-order data line and a third low-order data line, two ends of the third high-order data line are respectively connected with two ends of the third low-order data line through a terminal resistor, the terminal resistors connected with two ends of the third high-order data line are respectively arranged in the gateway and the remote vehicle locking control terminal, and the user remote monitoring terminal, the driving auxiliary system and the reserved diagnosis interface are connected between the third high-order data line and the third low-order data line;
the driving CAN bus comprises a driving high-bit data line and a driving low-bit data line, two ends of the driving high-bit data line are respectively connected with two ends of the driving low-bit data line through a terminal resistor, and the terminal resistors connected with two ends of the driving high-bit data line are respectively arranged in the vehicle control unit and the motor controller.
And the remote vehicle locking control terminal is in signal connection with the remote monitoring platform through wireless network signals.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to an electric automobile gateway system based on three routes CAN bus has set up three routes mutually independent CAN bus, does not have the influence each other, has improved whole car data communication's stability and security, and the communication rate of three routes CAN bus CAN be selected according to actual need. Therefore, the three CAN buses of the design are independent in communication, high in stability and good in safety.
2. The utility model relates to an electric automobile gateway system based on three routes CAN bus connects the electric part relevant with vehicle driving system on the first CAN bus, connects the electric part relevant with automobile body control on the second CAN bus, connects the electric part relevant with vehicle intelligent driving, remote control on the first CAN bus; the advantage of dividing the network is that more electric parts are arranged on the same CAN bus network, thus improving the information transmission efficiency and reducing the communication burden of the gateway. Therefore, the designed network structure is reasonable in design and the gateway communication burden is small.
3. The utility model relates to a thereby long-range lock car control terminal realizes the remote control of vehicle part function with remote monitoring platform signal connection among the electric automobile gateway system based on three routes CAN bus. Therefore, the gateway has reasonable structural design and can realize the remote control function.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the system comprises a vehicle control unit 1, a gateway 2, a first high-order data line 21, a first low-order data line 22, a second high-order data line 23, a second low-order data line 24, a third high-order data line 25, a third low-order data line 26, a driving high-order data line 27, a driving low-order data line 28, a motor controller 3, an electric power-assisted steering controller 4, a remote vehicle locking control terminal 5, a combination instrument 6, a three-in-one controller 7, a vehicle plant remote monitoring terminal 8, an OBD diagnosis interface 9, a battery management system 10, an air conditioner compressor 11, a brake anti-lock system 12, a vehicle low-speed prompt sound system 13, a vehicle body controller 14, a user remote monitoring terminal 15, a driving auxiliary system 16, a reserved diagnosis interface 17 and a remote monitoring platform 18.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, the gateway system of the electric vehicle based on three CAN buses comprises a vehicle control unit 1, a gateway 2, a motor controller 3, an electric power steering controller 4 and a remote vehicle locking control terminal 5, wherein the gateway 2 is connected with the vehicle control unit 1 through a first CAN bus, the vehicle control unit 1 is connected with the motor controller 3 through a driving CAN bus, the gateway 2 is connected with the electric power steering controller 4 through a second CAN bus, and the gateway 2 is connected with the remote vehicle locking control terminal 5 through a third CAN bus;
the first CAN bus is respectively connected with the combination instrument 6, the three-in-one controller 7, the remote monitoring terminal 8 of the whole vehicle plant, the OBD diagnosis interface 9 and the battery management system 10;
the second CAN bus is respectively connected with an air conditioner compressor 11, an anti-lock braking system 12, an automobile low-speed prompt sound system 13 and an automobile body controller 14;
and the third CAN bus is respectively connected with a user remote monitoring terminal 15, a driving auxiliary system 16 and a reserved diagnosis interface 17.
The first CAN bus comprises a first high-bit data line 21 and a first low-bit data line 22, two ends of the first high-bit data line 21 are respectively connected with two ends of the first low-bit data line 22 through a terminal resistor, the terminal resistors connected with two ends of the first high-bit data line 21 are respectively arranged in the gateway 2 and the vehicle controller 1, and the combination instrument 6, the three-in-one controller 7, the remote monitoring terminal 8 of the vehicle factory, the OBD diagnosis interface 9 and the battery management system 10 are connected between the first high-bit data line 21 and the first low-bit data line 22;
the second CAN bus comprises a second high-data line 23 and a second low-data line 24, two ends of the second high-data line 23 are respectively connected with two ends of the second low-data line 24 through a terminal resistor, the terminal resistors connected with two ends of the second high-data line 23 are respectively arranged in the gateway 2 and the electric power steering controller 4, and the air-conditioning compressor 11, the anti-lock braking system 12, the automobile low-speed prompting sound system 13 and the automobile body controller 14 are connected between the second high-data line 23 and the second low-data line 24;
the third CAN bus comprises a third high-order data line 25 and a third low-order data line 26, two ends of the third high-order data line 25 are respectively connected with two ends of the third low-order data line 26 through a terminal resistor, the terminal resistors connected with two ends of the third high-order data line 25 are respectively arranged in the gateway 2 and the remote car locking control terminal 5, and the user remote monitoring terminal 15, the driving auxiliary system 16 and the reserved diagnosis interface 17 are connected between the third high-order data line 25 and the third low-order data line 26;
the driving CAN bus comprises a driving high-bit data line 27 and a driving low-bit data line 28, two ends of the driving high-bit data line 27 are respectively connected with two ends of the driving low-bit data line 28 through a terminal resistor, and the terminal resistors connected with two ends of the driving high-bit data line 27 are respectively arranged in the vehicle controller 1 and the motor controller 3.
The remote vehicle locking control terminal 5 is in signal connection with the remote monitoring platform 18 through wireless network signals.
The principle of the utility model is explained as follows:
CAN is a serial communication protocol of ISO international standardization for Controller Area Network (CAN). Which is one of the most widely used field buses internationally, the CAN was originally designed to communicate as a microcontroller in an automotive environment, exchanging information between various onboard electronic control devices, forming an automotive electronic control network.
A Vehicle control unit 1 (VCU) is a core of the entire control system, and is referred to as a new energy Vehicle central control unit.
A Motor Control Unit 3 (Motor Control Unit), abbreviated as MCU, controls the rotation state of the Motor according to the command of the VCU. The term is commonly used for controlling an electric vehicle.
An Electric Power Steering controller 4 (Electric Power Steering) is abbreviated as EPS, i.e., an Electric Power Steering system, which is a Power Steering system that provides an assist torque by means of a motor.
T-BOX is the meaning of vehicle-mounted remote terminal.
The integrated circuit 6 (IC) is an in-vehicle instrument.
The three-in-one controller 7 is a high-voltage distribution controller, a DCDC converter and a vehicle-mounted charger three-in-one controller.
OBD is an abbreviation for On-Board Diagnostics in English, which translates to "vehicle-mounted automatic diagnostic System" in Chinese. The system can monitor whether the tail gas of the automobile exceeds the standard or not at any time according to the running condition of the engine, and can immediately send out a warning once the tail gas exceeds the standard. When the system is in failure, a fault (MIL) lamp or a Check Engine warning lamp is turned on, meanwhile, a power assembly control module (PCM) stores fault information into a memory, and a fault code can be read out from the PCM through a certain program.
Battery Management System 10 (Battery Management System) BMS for short
Air conditioning meaning Air conditioning compressor 11 (Air Condition) abbreviated as AC Air conditioning
The brake antilock system 12 (antilock brake system) is abbreviated ABS. The function is that when the automobile brakes, the braking force of the brake is automatically controlled, so that the wheels are not locked and are in a state of rolling and sliding (the sliding rate is about 20 percent) to ensure that the adhesive force between the wheels and the ground is at the maximum.
The car low speed warning sound system 13 refers to a system that sounds a warning to a nearby pedestrian when the vehicle is traveling at a low speed.
The body controller 14 (BCM) electronic control unit is used more and more in automobiles, and data communication between various electronic devices is also more and more. Meanwhile, the wide use of these independent modules brings problems of increased cost, high failure rate, complicated wiring and the like, and improves the comfort of the automobile. Therefore, it is necessary to design a powerful control module to implement these discrete controller functions and control numerous appliances, i.e., BCMs.
The Driving Assistance System 16 (Advanced Driving Assistance System), referred to as ADAS for short, uses various sensors (millimeter wave radar, laser radar, monocular/binocular camera and satellite navigation) installed on the vehicle to sense the surrounding environment at any time during the Driving process of the vehicle, collects data, identifies, detects and tracks static and dynamic objects, and performs systematic calculation and analysis by combining with navigator map data, thereby letting drivers perceive the danger that may occur in advance and effectively increasing the comfort and safety of the Driving of the vehicle.
Example 1:
an electric automobile gateway system based on three CAN buses comprises a vehicle control unit 1, a gateway 2, a motor controller 3, an electric power-assisted steering controller 4 and a remote vehicle locking control terminal 5, wherein the gateway 2 is connected with the vehicle control unit 1 through a first CAN bus, the vehicle control unit 1 is connected with the motor controller 3 through a driving CAN bus, the gateway 2 is connected with the electric power-assisted steering controller 4 through a second CAN bus, and the gateway 2 is connected with the remote vehicle locking control terminal 5 through a third CAN bus;
the first CAN bus is respectively connected with the combination instrument 6, the three-in-one controller 7, the remote monitoring terminal 8 of the whole vehicle plant, the OBD diagnosis interface 9 and the battery management system 10;
the second CAN bus is respectively connected with an air conditioner compressor 11, an anti-lock braking system 12, an automobile low-speed prompt sound system 13 and an automobile body controller 14;
and the third CAN bus is respectively connected with a user remote monitoring terminal 15, a driving auxiliary system 16 and a reserved diagnosis interface 17.
Example 2:
example 2 is substantially the same as example 1 except that:
the first CAN bus comprises a first high-bit data line 21 and a first low-bit data line 22, two ends of the first high-bit data line 21 are respectively connected with two ends of the first low-bit data line 22 through a terminal resistor, the terminal resistors connected with two ends of the first high-bit data line 21 are respectively arranged in the gateway 2 and the vehicle controller 1, and the combination instrument 6, the three-in-one controller 7, the remote monitoring terminal 8 of the vehicle factory, the OBD diagnosis interface 9 and the battery management system 10 are connected between the first high-bit data line 21 and the first low-bit data line 22;
the second CAN bus comprises a second high-data line 23 and a second low-data line 24, two ends of the second high-data line 23 are respectively connected with two ends of the second low-data line 24 through a terminal resistor, the terminal resistors connected with two ends of the second high-data line 23 are respectively arranged in the gateway 2 and the electric power steering controller 4, and the air-conditioning compressor 11, the anti-lock braking system 12, the automobile low-speed prompting sound system 13 and the automobile body controller 14 are connected between the second high-data line 23 and the second low-data line 24;
the third CAN bus comprises a third high-order data line 25 and a third low-order data line 26, two ends of the third high-order data line 25 are respectively connected with two ends of the third low-order data line 26 through a terminal resistor, the terminal resistors connected with two ends of the third high-order data line 25 are respectively arranged in the gateway 2 and the remote car locking control terminal 5, and the user remote monitoring terminal 15, the driving auxiliary system 16 and the reserved diagnosis interface 17 are connected between the third high-order data line 25 and the third low-order data line 26;
the driving CAN bus comprises a driving high-bit data line 27 and a driving low-bit data line 28, two ends of the driving high-bit data line 27 are respectively connected with two ends of the driving low-bit data line 28 through a terminal resistor, and the terminal resistors connected with two ends of the driving high-bit data line 27 are respectively arranged in the vehicle controller 1 and the motor controller 3.
Example 3:
example 3 is substantially the same as example 2 except that:
the remote vehicle locking control terminal 5 is in signal connection with the remote monitoring platform 18 through wireless network signals.
Claims (3)
1. The utility model provides an electric automobile gateway system based on three routes CAN bus which characterized in that:
the gateway system comprises a whole vehicle controller (1), a gateway (2), a motor controller (3), an electric power-assisted steering controller (4) and a remote vehicle locking control terminal (5), wherein the gateway (2) is connected with the whole vehicle controller (1) through a first CAN bus, the whole vehicle controller (1) is connected with the motor controller (3) through a driving CAN bus, the gateway (2) is connected with the electric power-assisted steering controller (4) through a second CAN bus, and the gateway (2) is connected with the remote vehicle locking control terminal (5) through a third CAN bus;
the first CAN bus is respectively connected with the combination instrument (6), the three-in-one controller (7), the remote monitoring terminal (8) of the whole vehicle plant, the OBD diagnosis interface (9) and the battery management system (10);
the second CAN bus is respectively connected with an air conditioner compressor (11), an anti-lock braking system (12), an automobile low-speed prompt sound system (13) and an automobile body controller (14);
and the third CAN bus is respectively connected with a user remote monitoring terminal (15), a driving auxiliary system (16) and a reserved diagnosis interface (17).
2. The electric vehicle gateway system based on the three-way CAN bus of claim 1, wherein:
the first CAN bus comprises a first high-bit data line (21) and a first low-bit data line (22), two ends of the first high-bit data line (21) are respectively connected with two ends of the first low-bit data line (22) through a terminal resistor, the terminal resistors connected with two ends of the first high-bit data line (21) are respectively arranged in the gateway (2) and the whole vehicle controller (1), and the combination instrument (6), the three-in-one controller (7), the whole vehicle plant remote monitoring terminal (8), the OBD diagnosis interface (9) and the battery management system (10) are connected between the first high-bit data line (21) and the first low-bit data line (22);
the second CAN bus comprises a second high-data line (23) and a second low-data line (24), two ends of the second high-data line (23) are respectively connected with two ends of the second low-data line (24) through a terminal resistor, the terminal resistors connected with two ends of the second high-data line (23) are respectively arranged in the gateway (2) and the electric power-assisted steering controller (4), and the air-conditioning compressor (11), the anti-lock braking system (12), the automobile low-speed prompt sound system (13) and the automobile body controller (14) are connected between the second high-data line (23) and the second low-data line (24);
the third CAN bus comprises a third high-order data line (25) and a third low-order data line (26), two ends of the third high-order data line (25) are respectively connected with two ends of the third low-order data line (26) through a terminal resistor, the terminal resistors connected with two ends of the third high-order data line (25) are respectively arranged in the gateway (2) and the remote vehicle locking control terminal (5), and the user remote monitoring terminal (15), the driving auxiliary system (16) and the reserved diagnosis interface (17) are connected between the third high-order data line (25) and the third low-order data line (26);
the driving CAN bus comprises a driving high-bit data line (27) and a driving low-bit data line (28), two ends of the driving high-bit data line (27) are respectively connected with two ends of the driving low-bit data line (28) through a terminal resistor, and the terminal resistors connected with two ends of the driving high-bit data line (27) are respectively arranged in the vehicle controller (1) and the motor controller (3).
3. The electric vehicle gateway system based on the three-way CAN bus as claimed in claim 1 or 2, wherein:
the remote vehicle locking control terminal (5) is in signal connection with the remote monitoring platform (18) through wireless network signals.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021164174.9U CN211930659U (en) | 2020-06-22 | 2020-06-22 | Electric automobile gateway system based on three CAN buses |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021164174.9U CN211930659U (en) | 2020-06-22 | 2020-06-22 | Electric automobile gateway system based on three CAN buses |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093738A (en) * | 2021-03-17 | 2021-07-09 | 东风商用车有限公司 | Unmanned card collection control system and control method thereof |
| CN115865566A (en) * | 2022-12-17 | 2023-03-28 | 中国重汽集团济南动力有限公司 | Gateway controller suitable for commercial car |
-
2020
- 2020-06-22 CN CN202021164174.9U patent/CN211930659U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093738A (en) * | 2021-03-17 | 2021-07-09 | 东风商用车有限公司 | Unmanned card collection control system and control method thereof |
| CN115865566A (en) * | 2022-12-17 | 2023-03-28 | 中国重汽集团济南动力有限公司 | Gateway controller suitable for commercial car |
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