A vehicle information service implemented on one or more computers of a service provider network implements a first application programmatic interface (API) that allows a client to define inclusion parameters and a sample size for a fleet of vehicles from which vehicle data is to be collected. The vehicle information service also implements a second API that notifies the client when the requested vehicle data has been collected from the vehicle fleet. Additionally, the vehicle information service provides the client access to the collected vehicle data. The vehicle information service manages the collection of the vehicle data from the client defined vehicle fleet without requiring further client involvement and notifies the client when the collection of the vehicle data is complete.

A system for communicating over a Controller Area Network (CAN) bus may include a central controller and a plurality of smart devices communicatively coupled with the central controller over the CAN bus and over an identification verification network separate from the CAN bus. Each smart device may be configured to at least one of measure various parameters and control a function based on a command received from the central controller, and then communicate one or more signals indicative of at least one of the measured parameters and the function over the CAN bus to the central controller. Each of the smart devices may include a physical input, a physical output, and at least two nonvolatile memory locations. A first of the at least two memory locations may be configured to store an identifier input signal received at the physical input from at least one of the central controller and an upstream smart device over the identification verification network, the identifier input signal being stored by the smart device as a function instance value for the smart device. The smart device may further include a source address determination module configured to determine a source address for the smart device based on the function instance value and a factory default base address for the smart device, and store the source address in a second of the at least two memory locations.

A control unit of a determination device obtains a plurality of pieces of first data and second data, derives determination data based on the first data, specifies, from among a plurality of combinations of identifiers for respectively identifying the pieces of first data and an identifier for identifying the second data, based on the second data and the determination data, a valid combination including the identifiers of valid first data and second data, and an invalid combination including the identifiers of invalid first data or second data, and determines, based on a plurality of identifiers included in the specified invalid combination and a plurality of identifiers included in the valid combination, whether the first data or the second data is invalid.

An electronic control unit (ECU) includes a processor, a Controller Area Network (CAN) controller, clock gating logic, and security gating logic. The CAN controller having a status and configured to receive data and control signals from the processor, and a clock signal, package the data to create a CAN protocol frame held in at least one transmit buffer, and shift the CAN protocol frame to a CAN transceiver that is configured to transmit the CAN protocol frame to a CAN bus. The security gating logic configured to, in response to the status of the CAN controller being active, inhibit disabling the clock signal.

In accordance with an embodiment, an integrated driver circuit includes: a first connection and a second connection configured to be connected to a control chip; at least one bus connection configured to be connected to a bus line; and a control circuit. The control circuit is configured to operate in a first mode or a second mode; to output a reception signal at the second connection in the second mode, where the reception signal represents a bus signal received at the bus connection; to assume a state of low power consumption in the first mode; to change from the first mode to the second mode when a first command is detected at the first connection or at the second connection; and to change from the second mode to the first mode when the bus signal does not indicate any data for a predefined period of time.

According to an aspect, there is provided a method for determining a sequence of bus nodes in a multi-drop communication bus. The method includes for each bus node: sending a request to the bus node using an bus node physical identifier to set the bus node to a loopback mode; transmitting at least one signal to the bus node via the multi-drop communication bus; receiving from the bus node a loopback signal caused by the at least one signal; and measuring a roundtrip delay between the at least one signal and the loopback response signal. The method further includes solving the physical order of the bus nodes in the multi-drop communication bus based on the roundtrip delays.

A method and system for detecting illegitimate messages injected into legitimate messages of a bus, such as a Controller Area Network (CAN) bus, are provided. Legitimate messages are broadcasted over the bus with a period whereby the legitimate messages are periodic legitimate messages. A controller connected to the bus receives at a first time instant a first message from the bus and receives at a second time instant a second message from the bus. The controller compares a first difference in time between the second time instant and the first time instant with a limit. The limit is two-thirds of the period. An anomaly is detected when the first difference in time is less than the limit.

The present disclosure provides an intrusion monitoring system, an intrusion monitoring method and related products. The intrusion monitoring system includes: a first monitoring component deployed in a controller area network, a second monitoring component deployed in an Ethernet network, and a first control component; the first monitoring component is configured to obtain first CAN reporting information on data traffic in the system and transmit the first CAN reporting information to the first control component; the second monitoring component is configured to obtain second Ethernet reporting information on the data traffic and transmit the second Ethernet reporting information to the first control component; and the first control component is configured to receive the first CAN reporting information from the first monitoring component and the second Ethernet reporting information from the second monitoring component, and determine whether the data traffic is an attack.

A CAN module that can be integrated between a CAN controller and a CAN transceiver includes a receive data (RXD), input interface for receiving a first bit sequence through a RXD stream and a RXD output interface for sending a manipulated receive data (MRXD), stream including a second bit sequence. A processing logic of the CAN module is configured to manipulate the first bit sequence to generate a second bit sequence comprising a second stuff bit at a second position in the second bit sequence corresponding to a first position of a first stuff bit in the first bit sequence such that the second stuff bit is complementary to a preceding bit of the second stuff bit in the second bit sequence. The present disclosure also relates to a method for the CAN module.

Methods and systems for transmitting data from an aircraft engine. A plurality of input signals are received at a control device, during an operation of the aircraft engine, from one or more sensors of the aircraft engine, one or more actuators of the aircraft engine, or any combination of the one or more sensors and the one or more actuators. The plurality of input signals are combined, at the control device, into an output signal indicative of the operation of the aircraft engine. The output signal is transmitted, at the control device, to a controller located remotely from the aircraft engine.