Abstract: An electric control device for vehicles capable of updating an old program stored in a storage unit with a new program. A reception unit sequentially receives a plurality of pieces of division data acquired by dividing difference data, which includes a data section based on a difference between the old program and the new program and a command section used for generating the new program by reflecting the data section on the old program, or difference compression data acquired by compressing the difference data for every predetermined data length A restoration process restores the new program based on each division data received by the reception unit and the old program. If at least a part of the command section and the data section is not included in the division data received by the reception unit, the restoration unit suspends the restoration process and waits for reception of next division data.

Abstract: Provided is a vehicle control device with which it is possible to reduce the time required to rewrite a control program. In the vehicle control device according to the present invention, after an updated version of the control program has been stored in a second storage unit, a first storage unit is initialized in advance before the instruction to update the control program has been executed.

Abstract: The present invention provides a vehicle-mounted control device, a program writing device, a program generating device, and a program, which are capable of quickly and easily carrying out reprogramming. An ECU 300 is provided with: a microcomputer 301, an SRAM 302, a flash memory 303, and a communication device 305. The flash memory 303 is configured from a plurality of blocks and stores older versions of the program. The communication device 305 receives (S250) a frame including block data, the type of the block data, and an address of a block in which the block data is to be written. The microcomputer 301 restores (S260) a new program from the block data in the SRAM 302 according to the type of the block data (S255, S260) and writes (S265, S270) one piece of the restored new program in a block corresponding to the address.

Abstract: Provided are a relay device and the like with which it is possible to suppress bus signal reflections and suppress signal delays. A relay device 100A includes a signal processing and forwarding pathway P1 and a bypass connection pathway P2. The signal processing and forwarding pathway P1 processes a signal received from one bus CAN1 of a plurality of buses, and forwards the processed signal to another bus CAN2. The bypass connection pathway P2 connects the one bus CAN1 to the other bus CAN2, bypassing the signal processing and forwarding pathway P1.

Abstract: Provided is an in-vehicle control device which makes it possible to achieve restoration processing of differential reprogramming even in an in-vehicle control device using a microcomputer with a built-in flash memory using a small amount of RAM and composed of large blocks, and is capable of restoring a new program in a short time by decreasing the size of differential data even for a new program to which major changes have been made. Provided is an in-vehicle control device capable of updating a program on the basis of update content provided from an update tool, the in-vehicle control device being provided with a first memory provided with a plurality of blocks for storing programs, and a second memory.

Abstract: A vehicle-mounted program writing device includes a plurality of vehicle-mounted control devices and a relay device. If a write start command button is turned on when a memory storage completion indicator is in an on state, the relay device starts the writing of the updated programs and the updated data to the vehicle-mounted control devices. If the memory storage completion indicator is in off state, the relay device does not execute the writing of the updated programs and the updated data even when the write start command button is turned on.

Abstract: Provided are an on-vehicle control device and an on-vehicle control device information update system that are capable of identifying a subject vehicle by a simple means, while suppressing power consumption, when on-vehicle device information is automatically updated. This on-vehicle control device receives a vehicle response request message from a data server in a power-saving mode in which only a vehicle external communication unit can operate; checks vehicle identification information and on-vehicle control device information that are subject to change and are stored in the message, and vehicle identification information and on-vehicle control device information stored in advance in the vehicle external communication unit and responds with the results to the data server.

Abstract: Provided is a software updating apparatus that can flexibly respond to various situations, including update capacity and use cases of each ECU, in a case of updating control information of a plurality of ECUs. Update control information necessary for update processing, including update data to be newly applied to an ECU, is received from a server and control of the update processing is performed based on the received update control information.

Abstract: The present invention provides a vehicle-mounted control device, a program writing device, a program generating device, and a program, which are capable of quickly and easily carrying out reprogramming. An ECU 300 is provided with: a microcomputer 301, an SRAM 302, a flash memory 303, and a communication device 305. The flash memory 303 is configured from a plurality of blocks and stores older versions of the program. The communication device 305 receives (S250) a frame including block data, the type of the block data, and an address of a block in which the block data is to be written. The microcomputer 301 restores (S260) a new program from the block data in the SRAM 302 according to the type of the block data (S255, S260) and writes (S265, S270) one piece of the restored new program in a block corresponding to the address.

Abstract: Provided is a vehicle control device with which it is possible to reduce the time required to rewrite a control program. In the vehicle control device according to the present invention, after an updated version of the control program has been stored in a second storage unit, a first storage unit is initialized in advance before the instruction to update the control program has been executed.

Abstract: A vehicle control system which can ensure high reliability, real-time processing, and expandability with a simplified ECU configuration and a low cost by backing up an error through coordination in the entire system without increasing a degree of redundancy of individual controllers beyond the least necessary level. The vehicle control system comprises a sensor controller for taking in sensor signals indicating a status variable of a vehicle and an operation amount applied from a driver, a command controller for generating a control target value based on the sensor signals taken in by the sensor controller, and an actuator controller for receiving the control target value from the command controller and operating an actuator to control the vehicle, those three controller being interconnected via a network.

Abstract: Provided is a vehicle-mounted program writing device that writes an updated program and updated data to a vehicle-mounted control device without a driver feeling inconvenienced. A relay device has: a means for receiving updated program data for a plurality of vehicle-mounted control devices and transmitted from an external center when an ignition is in an off state before a predetermined first time slot; and a means for waking up the vehicle-mounted control devices when a write start command transmitted within the first time slot is received from the external center, and cause a transition to a repro mode.

Abstract: Provided is a program writing device that reliably performs an updating process of data by means of a control program or the like in a safe manner and without inconveniencing the owner of a vehicle or a driver using the vehicle.

Abstract: A vehicle control system which can ensure high reliability, real-time processing, and expandability with a simplified ECU configuration and a low cost by backing up an error through coordination in the entire system without increasing a degree of redundancy of individual controllers beyond the least necessary level. The vehicle control system comprises a sensor controller for taking in sensor signals indicating a status variable of a vehicle and an operation amount applied from a driver, a command controller for generating a control target value based on the sensor signals taken in by the sensor controller, and an actuator controller for receiving the control target value from the command controller and operating an actuator to control the vehicle, those three controller being interconnected via a network.

Abstract: Provided is an on-vehicle network which can improve the network use efficiency and reduce the controller processor overhead even when the same communication cycle as the frame cannot be set in the filtering condition of a communication control device. A reference signal transmission controller is arranged in a network so as to generate and transmit a reference signal in accordance with the communication cycle. A reference signal reception controller receives the reference signal and compares the reference signals to a predetermined filtering condition table. If the signal is matched with the table, the controller executes a data reception process and a data transmission process.

Abstract: A vehicle control system which can ensure high reliability, real-time processing, and expandability with a simplified ECU configuration and a low cost by backing up an error through coordination in the entire system without increasing a degree of redundancy of individual controllers beyond the least necessary level. The vehicle control system comprises a sensor controller for taking in sensor signals indicating a status variable of a vehicle and an operation amount applied from a driver, a command controller for generating a control target value based on the sensor signals taken in by the sensor controller, and an actuator controller for receiving the control target value from the command controller and operating an actuator to control the vehicle, those three controller being interconnected via a network.

Abstract: A vehicle control system which can ensure high reliability, real-time processing, and expandability with a simplified ECU configuration and a low cost by backing up an error through coordination in the entire system without increasing a degree of redundancy of individual controllers beyond the least necessary level. The vehicle control system comprises a sensor controller for taking in sensor signals indicating a status variable of a vehicle and an operation amount applied from a driver, a command controller for generating a control target value based on the sensor signals taken in by the sensor controller, and an actuator controller for receiving the control target value from the command controller and operating an actuator to control the vehicle, those three controller being interconnected via a network.

Abstract: In order to correctly execute a control task in a FlexRay-based vehicle-mounted network system, data synchronization must be guaranteed by completing transmission/reception of all data within a communication cycle. The control task is called in synchronization with a communication cycle. Frames within a communication cycle are partitioned into a first-half slot group and a second-half slot group, each of which is a set of consecutive frames. During the slots of the first-half slot group, a data transmission/reception unit writes transmission frames of the second-half slot group and reads the reception frames of the second-half slot group. During the slots of the second-half slot group, the transmission/reception unit writes the transmission frames, and reads the reception frames, of the first-half slot group.

Abstract: In a vehicle control system in which a large number of ECUs operate in coordination via a network, each node has an intra-network node status determination section, other node's status decision transmitting/other nodes' status decision receiving section, and failed-node identification section. The nodes exchange decisions made by the intra-network node status evaluation section with other nodes and thereby identify failed node.

Abstract: In order to prevent an automobile from keeping running in an unsafe state when communication via an in-vehicle network becomes impossible, the present invention provides an in-vehicle network in which a synchronization execution node is selected from electronic control units which perform electronic control on the running or power of the automobile, among respective electronic control units.