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Automotive Bus Testing Overview: CAN, CANFD, LIN, FlexRay and Ethernet

Overview

As modern vehicles become more and more electronic, automotive bus systems are becoming more and more complex. Automotive bus testing is an important task that helps to identify problems in vehicle electronic systems and to guarantee the safety and reliability of vehicles. In this paper, we will introduce five common automotive bus systems and the related test tools.

CAN bus

Controller Area Network (CAN) is a data communication bus commonly used in modern automobiles, CAN bus is a high-speed bus that supports many different data transfer rates and can be used to transfer data from various vehicle systems, such as engine, transmission system, vehicle stability control system and anti-theft system.CAN bus test tools monitor the data transmission in the CAN bus and detect any problems and errors in the bus. These tools also analyze and record data to help technicians with troubleshooting and repair.

The CANFD bus is a high-speed CAN bus that supports faster data transfer rates and larger data loads. It is an evolution of the CAN bus and can be used to support higher bandwidth applications, such as Advanced Drive Assist Systems (ADAS) and driverless systems (AV).The CANFD bus test tool detects and analyzes CANFD total online data transmission, and provides detailed data logging and analysis functions to help technicians quickly resolve troubles.

Local Interconnect Network (LIN) is a low-speed bus mainly used for electronic devices in vehicles, such as door controls, keypads, damping systems and fan controls, etc. LIN bus test tools can detect and analyze data transmission in the LIN bus and provide fault detection and diagnostic functions to help technicians solve problems in vehicle electronic systems. The LIN bus test tool can detect and analyze LIN bus data transmission and provide fault detection and diagnosis functions to help technicians solve problems in vehicle electronic systems.

FlexRay bus is a high-speed data transfer bus for advanced automotive control systems such as vehicle stability control systems, autonomous driving systems and electric vehicle control systems, etc. FlexRay bus is highly real-time and reliable and supports a wide range of different data transfer rates.The FlexRay Bus Test Tool monitors and analyzes the data transmission of the FlexRay bus inline and provides real-time data logging and analysis capabilities to help technicians with troubleshooting and repair.

The Ethernet bus is a high-speed data transmission bus that can be used to support high-bandwidth automotive applications such as advanced entertainment systems, remote diagnostics and in-vehicle communications. The Ethernet bus supports many different transmission rates and communication protocols, such as TCP/IP and UDP protocols.The Ethernet Bus Test Tool monitors and analyzes data transmission from the Ethernet bus online and provides detailed data logging and analysis capabilities to help technicians identify problems in the vehicle's electronic systems.

Conclusion

Automotive bus testing is an important task that helps identify problems in vehicle electronic systems and ensures the safety and reliability of vehicles. and diagnostic functions to help technicians solve problems in vehicle electronic systems. When choosing a bus test tool, it is necessary to consider the characteristics and requirements of different bus systems and select the tool that meets the requirements to ensure the test effect and accuracy.

Reference TOSUN Hardware Products

CAN / CAN FD / LIN hardware

CAN FD/CAN bus tools are mainly used for bus data monitoring and analysis, whole vehicle network node simulation, ECU node and system related testing, UDS diagnostic testing, UDS based ECU flashing, and ECU or whole vehicle calibration and flashing, etc.


-TOSUN CAN/CAN FD/LIN hardware products

Product Model Device Description
TC1011 1 CH CANFD to USB
TC1012/P 1 CAN FD, 1 LIN bus to USB interface
TC1013 2 CH CAN FD to USB
TC1014 4 CH CAN FD to USB
TC1016/P 4 CH CAN FD and 2 CH LIN to USB
TC1017 8 CAN FD to USB 8 CH CAN FD to US
TC1018 12 CH CAN FD to USB
MP1013 2CH CAN FD to miniPCIe
TP1013 2 CAN FD to PCIe
TL1001 1 LIN to USB
TL1026/P 1 CAN FD, 6 LIN bus to USB interface
TLog1002 2 CH CAN FD and 2 CH LIN, 64G
TLog1004 4 CH CAN FD and 2 CH LIN, 64G
TLog1038 12 CH LIN, 12 CH CAN FD, 3 CH ETH T1, 2 CH FlexRay, DIO*4, AIAO*3
TC1113B/4B 2 CH/4 CH CAN FD to USB / Bluetooth / WIFI
GW2112 2 CH CAN FD/CAN Gateway

FlexRay Hardware

TOSUN TC1034 is a 2-way FlexRay, 2-way CAN FD bus to USB interface device. It can easily perform the work of FlexRay network development, simulation and testing.

Ethernet Hardware

Ethernet hardware is mainly used for monitoring and analysis of in-vehicle Ethernet and CAN network data, in-vehicle Ethernet and CAN bus emulation, conversion between in-vehicle Ethernet and standard Ethernet, ECU flashing, ECU-level and system-level automation testing, and automotive Ethernet to CAN FD gateway applications.


-TOSUN Ethernet hardware products

Product Model Device Description
TE1021 1 CH 100/1000Base-T1 to 1000Base-Tx
TE1051 1 CH 100/1000Base-T1/Tx to USB
TE1105 5 CH 100/1000Base-T1/Tx to USB
TC1054 4x 100/1000Base-T1, 2x LIN, 4x CAN FD to 10 Gigabit Ethernet / 1000Base-T / USB Interface