Honda Motor Co., Ltd.

Yazaki Corporation

Tomoya Nishino

Noboru Ujigawa

Keisuke Ueta

Takashi Kikuchi

Syunsuke Nagakura

Takahiro Miyakawa

Seiju Kawamata

Masataka Tsukioka

Rikuya Ezoe

Katsuyasu Yamane

Ryo Morosawa

Haisong Liu

Hisahiro Kato

Kenya Sakurai

Tatsuroh Saitoh

Hiroaki Hakukawa

Sora Nishigaki

A vehicle communication system includes a plurality of ECUs connected by the communication network including a plurality of communication transmission lines. Each of the ECUs includes an identification unit that identifies a target ECU to be a communication partner, and a relay transmission line and a relay ECU through which communication with the target ECU is routed, a standby time determination unit that determines a transmission standby time based on information on the relay ECU, the transmission standby time being a time from transmission of an activation instruction to another one of the ECUs closest to the ECU along the relay transmission line to transmission of a control signal toward the target ECU, and a communication unit that transmits the control signal after an elapse of the transmission standby time after transmitting the activation instruction to the relay transmission line closest to the ECU.

Vehicle communication system, vehicle communication method, and control device

A vehicle control system includes plural electronic control devices each of which controls an operation of a vehicle and which is mounted in the vehicle, a monitoring control device monitoring an operation of each electronic control device, and an electric connector which selectively sets an electronic connection of a power source line constantly performing a supply of power to a connection state or a non-connection state and which is provided between the power source line and each electronic control device, the monitoring control device includes a recording unit which performs a fault diagnosis of one electronic control device being a monitoring target and which executes a recording operation to store a diagnosis result in a storage device, and a mode setting unit setting the recording unit to a first operation mode executing the recording operation or a second operation mode not executing the recording operation.

Vehicle control system and vehicle control method

A vehicle control apparatus includes: a distance acquiring unit that acquires a distance between the vehicle and a mobile terminal having an unlocking function of the vehicle; and a lighting control unit that controls lit states of room lights and under lights that are provided to the vehicle.

Lighting control apparatus and lighting control method

An electric wire protection device includes a voltage adjusting unit that adjusts voltage of a power source side and supplies the resulting voltage to a load, and a controller that includes a calculation unit configured to compute temperature information of an electric wire connecting the power source and the load from a value of an electric current flowing through the voltage adjusting unit, and that is configured to make the voltage adjusting unit into a shutoff state of shutting off the power source and the load on the basis of the temperature information.

Electric wire protection device and control method for electric wire protection device

An electric wire protection device includes a voltage adjuster that adjusts voltage on a power source side to be supplied to a load and a controller that includes a temperature calculation part which calculates temperature information of an electric wire based on a current value flowing through the voltage adjuster. The controller sets a first time constant as a time constant used to calculate the temperature information while the voltage adjuster is in the interrupted state, and sets a second time constant as a time constant used to calculate the temperature information while the voltage adjuster supplies power to the load. The first time constant is a value larger than the second time constant and equal to or larger than an actual time constant of the electric wire, and the second time constant is a value smaller than the actual time constant of the electric wire.

Electric wire protection device

An electric-wire protection device includes a voltage adjustment unit that adjusts the voltage to a load, and a controller that includes a temperature calculation unit that calculates temperature information on an electric wire from a value of current, and makes the voltage adjustment unit into a shut-off state based on the temperature information. The temperature information is calculated from an amount of temperature changes based on the current value and a predetermined initial value. The controller shifts into a sleep state when a sleep condition is satisfied that includes a condition that the temperature information is lower than the initial value. The initial value when the controller returns from the sleep state is based on a convergence value of temperature in conducting energization on the electric wire at a maximum value of steady-state current.

Electric-wire protection device

Growing community of inventors

Saitama, Japan

Tomoya Nishino