7 results about "Automotive ethernet" patented technology

A system and method of processing Automotive Ethernet and High-Speed Ethernet signals. The method includes forming a first data path according to a first transmission protocol and a second data path according to a second transmission protocol. The method includes selecting the first data path to receive a first bitstream compliant with the first transmission protocol at a first data rate. The method includes encoding the first bitstream using a first encoding scheme to produce a first encoded bitstream. The method includes upsampling the first encoded bitstream to produce an upsampled bitstream at a different data rate. The upsampled bitstream aligns with transmission requirements of a Physical Medium Attachment (PMA) device. The method includes forwarding the upsampled bitstream to the PMA device.

The invention provides an interrogator circuit in an automotive Ethernet network system, comprising a hybrid circuit configured to be coupled to a media-dependent interface circuit for data communication with a responder circuit; a transmit circuit coupled to the hybrid circuit and configured to generate and provide a transmit signal to the hybrid circuit; a receive circuit coupled to the hybrid circuit and configured to receive and parse a receive signal from the hybrid circuit to generate a data signal; a processing circuit coupled to the receive circuit and configured to process the data signal; a physical coding sublayer circuit coupled to the processing circuit and configured to control operation of the transmit circuit; and an echo cancellation circuit coupled between the transmit circuit and the receive circuit and configured to generate an echo cancellation signal.

An ethernet connector (4) for a motor vehicle (2) has two signal leads (5–8) arranged adjacent each other, each having a rectangular cross section with a width (w) and a height (h), the height (h) being smaller than the width (w). A height side of each signal lead defines the height and a width side defines the width. In a first portion (L1) of the connector (4), the at least two signal leads (5–8) are each arranged with the width sides being parallel to each other and to a longitudinal axis (L) of the signal leads. In a second portion (L2) of the connector (4), at least a first one of the signal leads (5–8) is twisted by 90° with respect to the first portion (L1) around the longitudinal axis (L) of the first one of the signal leads.

The invention relates to a method for checking communication between two control units (1) of a vehicle connected via Automotive Ethernet, wherein a signal transmission on a communication channel (2) between the control units (1) is detected (S1), a course of a transmitted energy on the communication channel (2) is determined (S2) and compared with predetermined limit values ​​(S3), wherein different phases of a connection setup between the control units (1) are determined on the basis of the transmitted energy (S4).

This invention provides a method and system for automotive Ethernet intrusion detection based on multi-stage deep learning, relating to the field of automotive Ethernet technology. The method includes: after collecting multi-protocol traffic in a bypass mode and synchronizing it using gPTP timing, generating a windowed packet sequence based on a sliding time window; extracting and generating two types of feature data: a statistical aggregation feature vector and a network traffic imaging feature matrix; using a first-stage random forest to quickly detect and output early warnings and a first-stage confidence level for the statistical aggregation feature vector; when anomalies occur, using a second-stage pruned convolutional neural network to perform fine classification of the network traffic imaging feature matrix; finally, performing decision fusion, forcibly accepting the fine classification result when there is a divergence, and using the first-stage confidence level as feedback to update the judgment threshold. This invention takes into account the limited computing power of in-vehicle systems, significantly reduces the false alarm rate, and achieves dynamic adaptive defense.

This invention belongs to the field of automotive testing technology and discloses a multifunctional automotive TSN testing device and its testing method. The testing method includes: enabling all test ports to share the same time base; generating inbound and outbound timestamps for all incoming and outbound frames in a unified time domain; forming a port-level time-aware scheduling matrix; deeply binding the Layer 3 packet payload to a designated physical port and outputting test traffic through the timestamp injection unit of each port; recording the inbound and outbound timestamps of abnormal frames under the same time base; generating TSN consistency verification results based on the inbound and outbound timestamps; and performing cross-protocol delay consistency verification between automotive Ethernet and CAN / LIN. This invention achieves TSN function verification and cross-protocol delay consistency testing under a unified time base, improving the overall testing accuracy and consistency analysis capability in a multi-protocol automotive network environment.

This application provides a method, system, device, and medium for laying out a transmission link in an automotive Ethernet system, belonging to the field of vehicle technology. The method includes: based on the identification of a signal link reference diagram, initially determining the layout position of each signal link device; determining the ground wire layout, pad layout, and trace layout of the transmission link in the automotive Ethernet system using the signal link reference diagram, layout position, and type of each signal link device, thereby obtaining a preliminary layout diagram of the transmission link that meets Ethernet signal transmission specifications, ensuring effective transmission and processing of 1000Base-T1 signals in the automotive environment, and ensuring initial board success rate and design reliability; performing layout simulation on the preliminary layout diagram and signal simulation analysis on the updated layout diagram; and by standardizing the 1000Base-T1 PCB design process and integrating signal integrity simulation technology, ensuring effective transmission and processing of 1000Base-T1 signals in the automotive environment and improving the consistency and reliability of transmission performance.