The embodiment of the invention relate to a method and device for establishing logical channels, and a vehicle communication interface (VCI). The method comprises receiving at least two first instructions sent by a vehicle diagnostic device, wherein the first instructions are used for instructing the vehicle diagnostic device to establish a connection to the electronic control unit (ECU) of the vehicle; establishing at least two logical channels according to the at least two first instructions, wherein the first instructions correspond to the logical channels one by one, the logical channels are used for transmitting the data between the vehicle diagnostic device and the ECU. The embodiment of the present invention establishes the at least two logical channels for transmitting the data between the vehicle diagnostic device and the ECU in accordance with the at least two first instructions so as to form a plurality of channels for accessing each ECUs. Through the at least two logical channels, the vehicle diagnostic device can simultaneously get access to at least two ECUs, thereby improving diagnostic efficiency.

Method and device for establishing a logical channel, and vehicle communication interface (vci)

A method of configuring an in-vehicle network includes: receiving a first wake-up signal from a first controller among a plurality of controllers in a sleep mode by an Ethernet switch; activating the Ethernet switch according to the wake-up signal; determining a routing port according to a destination address of the Ethernet data received from the first controller; and transmitting a second wake-up signal of a second controller among the plurality of controllers through a physical-layer processing device included in the Ethernet switch corresponding to the determined routing port.

Ethernet switch, method of configuring in-vehicle network, and vehicle

Systems for vehicles are disclosed using simplified state machines. For one example, a data processing system for a vehicle includes a plurality of subsystem nodes interconnected by a network topology. Each subsystem node includes a transceiver and micro-controller coupled to the transceiver. The micro-controller is configured to obtain an atomic machine state bit vector. Each bit of the atomic bit vector describes a state of the vehicle used by a state machine operating within the vehicle. The micro-controller multiplies a first bit vector mask with the atomic machine state bit vector to obtain a first result. The first result identifies first states of interest. The micro-controller determines a next state for the state machine based on the identified first states of interest. The micro-controller performs a function for the vehicle based on the determined next state. The atomic machine state bit vector can be updated based on the determined next state and distributed within the vehicle.

Systems for vehicles using simplified state machines

Systems and methods for performing node maintenance on network nodes in a communication network are provided. The network nodes can be in communication with a node management device that can control when each network node is in a sleep state and in an awake state as part of a check-in cycle where the network nodes report to the node management device. When maintenance is required on the network nodes, the node management device can increase the amount of time used during the check-in cycle to account for the time needed to perform maintenance on one of the network nodes. The node management device can then use this additional time to perform the required maintenance on one of the network nodes. The remaining network nodes that are not receiving the required maintenance are provided with an extended sleep time to permit the one network node to receive maintenance.

Systems and methods for node maintenance in a network

Systems and methods that facilitate identifying and controlling the systems and subsystems in a vehicle to enable autonomous operation of the vehicle are disclosed. An autonomous vehicle interface (AVI) (the "AVI control system") can interface with and control the system of the vehicle, thereby enabling control of the vehicle as a whole. Electronic control units may be associated with each of the systems and subsystems in the vehicle, and the AVI may interface with and control these electronic control units over a shared data bus. In order to control particular electronic control units, the systems and methods provide for sampling data packets transmitted by the electronic control units on the shared data bus, measuring the impedance of the shared data bus when data packets are being transmitted, and identifying particular electronic control units based on the measured impedance.

Autonomous vehicle interface using bus impedance to identify control units, and associated systems and methods

Disclosed are control algorithms and system architectures for managing operation of networked controllers and devices, including vehicles with an onboard network of electronic control units (ECU) and control logic for governing the snoozing and waking of these ECUs. A method for managing a motor vehicle's in-vehicle network of ECUs includes: determining status vectors for a group of the ECUs, each status vector indicating whether the corresponding ECU is awake or asleep; determining device roles for these ECUs—slave or master; determining an assigned hierarchy for selecting the ECUs as the master device; receiving a mode change signal indicating an ECU intends to transition to the asleep state or to the awake state; and, responsively, modifying the respective device role for one ECU from master to slave and the respective device role for another ECU from slave to master based on the assigned hierarchy and the status vectors for the ECUs.

Architectures and methods for management of in-vehicle networked controllers and devices

Offenbart werden Steuerungsalgorithmen und Systemarchitekturen zur Verwaltung des Betriebs vernetzter Steuerungen und Vorrichtungen, einschlieslich Fahrzeuge mit einem Bordnetz von elektronischen Steuergeraten (ECU) und Steuerlogik zum Regeln des Ruhens und Aktivierens dieser ECUs. Ein Verfahren zur Verwaltung des fahrzeuginternen Netzwerks von ECUs in einem Kraftfahrzeug beinhaltet: das Ermitteln von Statusvektoren fur eine Gruppe von ECUs, wobei jeder Statusvektor angibt, ob das entsprechende ECU aktiv oder nicht aktiv ist; das Ermitteln der Vorrichtungsrollen fur diese ECUs - Slave oder Master; das Ermitteln einer zugewiesenen Hierarchie zum Auswahlen der ECUs als Master-Vorrichtung; das Empfangen eines Modusanderungssignals, das anzeigt, dass ein ECU beabsichtigt, in den Ruhezustand oder in den aktivierten Zustand uberzugehen; und in Reaktion darauf, das Modifizieren der jeweiligen Vorrichtungsrolle fur ein ECU vom Master zum Slave und der jeweiligen Vorrichtungsrolle fur ein anderes ECU vom Slave zum Master basierend auf der zugewiesenen Hierarchie und den Statusvektoren fur die ECUs.

Architekturen und Verfahren zur Verwaltung von Fahrzeuginternen vernetzten Steuerungen und Vorrichtungen

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Architectures and methods for management of in-vehicle networked controllers and devices

Architekturen und Verfahren zur Verwaltung von Fahrzeuginternen vernetzten Steuerungen und Vorrichtungen