Tech Primer
Modern automobiles have a variety of ECUs (Electronic Control Units) such as information and entertainment system, power transmission system, chassis control system, security control system and body control system. There are a large amount of data and information need to be exchanged and shared among these systems. Due to the different requirement of each system on real-time operation and reliability, it is necessary to deploy a number of communication buses with different transmission speed and bandwidth, such as MOST bus used in automotive information and entertainment system, FlexRay used in power transmission system, CAN bus, and LIN bus used in body control system. In order to avoid conflict during data transmission and sharing among the systems working on different speeds and protocols, an automotive gateway is required to accomplish the complex translation among the different protocols and retransmission of data.
Automotive gateway is an important network device in an automobile. It not only has routing function, but also can implement translation among different protocol stacks to ensure interconnection among various networks. Thus its performance will directly affect the communication quality among the networks and modules, which is obviously critical for security and reliability of the whole automotive system. As a matter of fact, automotive gateway may be an individual module, or integrated into other electronic devices such as automotive dashboard, body control module, etc.
Other Resources
- Focus-On Microcontrollers
- Analog products target automotive engine control
- Single-Chip MCU optimizes automotive gateway communication
- FlexRay speeds automotive safety applications
- Evaluation kit can kick start FlexRay applications
- Automotive gateways spearhead in-car network integration
- Universal gateway links automotive CAN devices to Ethernet
- Automotive Gateway Controllers with FPGAs
- Universal Gateway