Abstract: An in-vehicle electronic system comprises a core ECU (Electronic Control Unit) mounted in a vehicle and a plurality of slave ECUs that is capable of communicating with the core ECU through an in-vehicle communication network, wherein the core ECU is configured to manage a current time while a main power source of the vehicle is in an off state and manage an activation time of each of the plurality of slave ECUs in a sleep state with a management table while the main power source is in an off state, wherein the core ECU is configured to send an activation signal to each slave ECU through the in-vehicle communication network when the current time becomes the activation time of each of the plurality of slave ECUs while the main power source is in an off state.

Abstract: An electronic communication system includes: a vehicle control unit that controls a functional unit mounted in a vehicle; and a higher-order control unit, wherein the vehicle control unit and the higher-order control unit are connected through a lower-order communication line, a plurality of the higher-order control units are connected to each other through a higher-order communication line, and the higher-order control unit starts up from a sleep state in response to receiving a first wake-up signal from the vehicle control unit through the lower-order communication line, determines a first transmission period, based on a time period required for another higher-order control unit connected to the higher-order control unit through the higher-order communication line to start up, and transmits a second wake-up signal to the another higher-order control unit at regular intervals of the determined first transmission period.

Abstract: A relay device in a communication system receives a plurality of wakeup frames from one or more than one communication device connected to each bus of a plurality of buses via a corresponding port. The relay device obtains an aggregated wakeup pattern by aggregating information on an operating mode of each communication device included in the plurality of wakeup frames so as to include predetermined information to be transmitted and received and reduce the number of wakeup patterns. By using the aggregated wakeup pattern obtained by aggregating the information on the operating mode, a wakeup frame for transmission to each bus via the corresponding port is prepared.

Abstract: A communication system, in which a plurality of nodes communicate with each other according to a communication protocol, which wakes up some of the plurality of nodes when a communication frame containing specific start information occurs on or is transmitted to the communication bus, includes a master node determines, for each of slave nodes, a start condition, which is a condition for transition of a subject node from a sleep state to a normal state. The master node transmits, to the communication bus, the determined start condition tailored for each of the slave nodes for a reception thereof by each of the slave nodes.

Abstract: A vehicle control system includes a plurality of slave ECUs, and a core ECU including a gateway function for relaying data communication among the plurality of slave ECUs and between the plurality of slave ECUs and an external apparatus. The vehicle control system accepts operation requests from a plurality of systems that makes a request for an operation to an operating unit equipped in a vehicle and performing an operation based on an operation request. The operation requests from the plurality of systems include at least a request from the external apparatus or a request from a function added to the core ECU by the external apparatus. When operation requests from the plurality of systems are accepted, the core ECU performs arbitration for the operation requests from the plurality of systems and transmits an arbitration result to at least one of the plurality of slave ECUs.

Abstract: An in-vehicle electronic system comprises a core ECU (Electronic Control Unit) mounted in a vehicle and a plurality of slave ECUs that is capable of communicating with the core ECU through an in-vehicle communication network, wherein the core ECU is configured to manage a current time while a main power source of the vehicle is in an off state and manage an activation time of each of the plurality of slave ECUs in a sleep state with a management table while the main power source is in an off state, wherein the core ECU is configured to send an activation signal to each slave ECU through the in-vehicle communication network when the current time becomes the activation time of each of the plurality of slave ECUs while the main power source is in an off state.

Abstract: A relay device in a communication system receives a plurality of wakeup frames from one or more than one communication device connected to each bus of a plurality of buses via a corresponding port. The relay device obtains an aggregated wakeup pattern by aggregating information on an operating mode of each communication device included in the plurality of wakeup frames so as to include predetermined information to be transmitted and received and reduce the number of wakeup patterns. By using the aggregated wakeup pattern obtained by aggregating the information on the operating mode, a wakeup frame for transmission to each bus via the corresponding port is prepared.

Abstract: A communication system, in which a plurality of nodes communicate with each other according to a communication protocol, which wakes up some of the plurality of nodes when a communication frame containing specific start information occurs on or is transmitted to the communication bus, includes a master node determines, for each of slave nodes, a start condition, which is a condition for transition of a subject node from a sleep state to a normal state. The master node transmits, to the communication bus, the determined start condition tailored for each of the slave nodes for a reception thereof by each of the slave nodes.

Abstract: A wiring harness evaluation apparatus includes a functional allocation means which allocates functions realized by a plurality of ECUs installed in a vehicle to the ECUs, a routing path setting means which sets a routing path of a wiring harness in conformity with the allocation by the functional allocation means, a component selection means which selects components for configuring the wiring harness in conformity with the routing path set by the routing path setting means, and an evaluation value calculation means which calculates an evaluation value for at least one of a total weight of the components, total cost of the components, and total length of electric wires configuring the wiring harness on the basis of information on the components selected by the component selection means.

Abstract: An ECU (Electronic Control Unit) evaluation apparatus, for use in vehicle design, allocates functions appropriately to respective ECUs of a vehicle. The function allocation can be performed based on user-specified priority aspect(s) in conjunction with stored information concerning the respective functions and information concerning the ECUs, such as installation positions on the vehicle, mechanical and electrical specifications of component parts of ECUs, etc.

Abstract: A vehicle-mounted network system includes a plurality of electronic control units (ECUs) communicatively connected to a communication path of a vehicle-mounted network, each of which is configured to selectively perform a normal mode of operation and a sleep mode, and a management apparatus. The plurality of ECUs are configured to be individually powered on and off by a power supply relay of the management apparatus. The management apparatus is configured to acquire information indicative of a vehicle situation and determine a scene from the acquired information, determine control contents for powering on or off at least one specific ECU, of the plurality of ECUs, corresponding to the determined scene, if any, and power on or off the at least one specific ECU based on the determined control contents.

Abstract: A vehicle-mounted network system includes a plurality of electronic control units (ECUs) communicatively connected to a communication path of a vehicle-mounted network, each of which is configured to selectively perform a normal mode of operation and a sleep mode, and a management apparatus. The plurality of ECUs are configured to be individually powered on and off by a power supply relay of the management apparatus. The management apparatus is configured to acquire information indicative of a vehicle situation and determine a scene from the acquired information, determine control contents for powering on or off at least one specific ECU, of the plurality of ECUs, corresponding to the determined scene, if any, and power on or off the at least one specific ECU based on the determined control contents.

Abstract: A wiring harness evaluation apparatus includes a functional allocation means which allocates functions realized by a plurality of ECUs installed in a vehicle to the ECUs, a routing path setting means which sets a routing path of a wiring harness in conformity with the allocation by the functional allocation means, a component selection means which selects components for configuring the wiring harness in conformity with the routing path set by the routing path setting means, and an evaluation value calculation means which calculates an evaluation value for at least one of a total weight of the components, total cost of the components, and total length of electric wires configuring the wiring harness on the basis of information on the components selected by the component selection means.

Abstract: An ECU (Electronic Control Unit) evaluation apparatus, for use in vehicle design, allocates functions appropriately to respective ECUs of a vehicle. The function allocation can be performed based on user-specified priority aspect(s) in conjunction with stored information concerning the respective functions and information concerning the ECUs, such as installation positions on the vehicle, mechanical and electrical specifications of component parts of ECUs, etc.