3 results about "Transmission cycle" patented technology

A vehicle-mounted apparatus includes: a transmission processing unit configured to perform a transmission process for transmitting, to another vehicle-mounted apparatus, first time synchronization information and second time synchronization information that includes a transmission time at which the first time synchronization information is transmitted, at a predetermined transmission cycle; and a correction unit configured to perform a correction process for correcting the transmission time to be included in the second time synchronization information in a current transmission process, based on a time difference between a current time at the vehicle-mounted apparatus and a previous transmission time, the previous transmission time being the transmission time in the previous transmission process, to a corrected transmission time obtained by adding, to the previous transmission time, the transmission cycle and a value obtained by splitting the time difference.

This application discloses a remote control method, system, vehicle, device, and medium for vehicles. The remote control method includes: receiving remote control commands from a remote service platform via an onboard TBOX and storing the remote control commands in a preset command buffer; sending the remote control commands to the corresponding in-vehicle controller when the next message transmission cycle is reached; if the next message transmission cycle has not been reached and a new command is received, updating the command buffer with the new command, and sending the commands in the command buffer to the corresponding in-vehicle controller when the next message transmission cycle is reached. By storing remote control commands in a buffer, multiple control commands can be continuously issued without waiting for controller feedback. Simultaneously, updating the command buffer with new commands avoids command duplication or conflict within the buffer, thereby reducing communication redundancy and improving remote control efficiency.

An onboard apparatus is an onboard apparatus that performs processing for updating a program of an onboard ECU that is mounted in a vehicle, and includes: a control unit that controls transmission of a frame of an update program to the onboard ECU, and a storage unit that stores a history of a bus load on a bus for transmitting the frame of the update program to the onboard ECU, and the control unit derives, based on the history, a transmission cycle for transmitting the frame of the update program to the onboard ECU, before the frame of the update program is transmitted, and transmits the frame of the update program to the onboard ECU based on the derived transmission cycle.