Protocol selection matrix for in-vehicle networks
AssigneeDearborn Group, Inc.
InventorsRobert E. McClure, David M. Such
Life of this patent
Estimating the term…
Abstract
A protocol selection matrix adapter that interfaces a host computer to multiple in-vehicle networks. The protocol selection matrix adapter is microprocessor controlled and provides a physical interface to the in-vehicle networks. Further, the control of the protocol selection matrix adapter automatically selects the in-vehicle networks, and the initiation of communications on the detected networks. The protocol selection matrix adapter also is able to reprogram an electronic control unit (ECU) that makes up the in-vehicle network.
Claims20
A protocol selection matrix adapter for interfacing a host computer to multiple in-vehicle networks on a vehicle through a plurality of protocols, said adapter comprising:
- a protocol central processing unit (CPU) circuit, said CPU circuit providing vehicle network protocol interactions, low level filtering of incoming messages, data and communications transfer to the host computer, time stamping and broadcast functionality operations;
- a universal asynchronous receiver transmitter (UART) decoder circuit for decoding UART protocols;
- and
- a plurality of transceivers, said transceivers providing a protocol interface between the vehicle and the host computer, wherein the adapter is capable of providing simultaneous support of at least two vehicle protocols.
A protocol selection matrix adapter for interfacing a host computer to multiple in-vehicle networks on a vehicle through a plurality of protocols, said adapter comprising:
- a protocol central processing unit (CPU) circuit, said CPU circuit providing vehicle network protocol interactions, low level filtering of incoming messages, data and communications transfer to the host computer, time stamping and broadcast functionality operations;
- a universal asynchronous receiver transmitter (UART) decoder circuit for decoding UART protocols;
- and
- a plurality of transceivers, said transceivers providing a protocol interface between the vehicle and the host computer, wherein the adapter is capable of providing simultaneous support of at least two vehicle protocols, said plurality of receivers including a controller area network (CAN) transceiver for providing a CAN protocol interface between the vehicle and the host computer, a standard corporate protocol (SCP) transceiver circuit for providing a SCP protocol interface between the vehicle and the host computer, a UART based protocol (UBP) transceiver circuit that is controlled by the UART decoder circuit, said UBP transceiver circuit providing a UBP protocol interface between the vehicle and the host computer, a data communications link (DCL) protocol that is controlled by the UART decoder circuit, said DCL transceiver circuit providing a DCL protocol interface between the vehicle and the host computer, an ISO 9141 transceiver circuit that is controlled by the UART decoder circuit and supports all ISO 9141 type protocols in key word-200, and a diagnostic data link (DDL) UART transceiver circuit that is controlled by the UART decoder circuit, said DCL transceiver circuit providing a DCL protocol interface between the vehicle and the host computer.
Dependencies are inferred from the claim text.