Fujitsu Ten Limited

Hiroshi Arita

Takahiro Aki

Kiyoshi Yagi

Minoru Takahashi

Junji Takahashi

Kaoru Noumi

Masato Ishio

Takehito Iwanaga

Tsuyoshi Takatori

Shinichiro Takatomi

Masatoshi Hagiwara

Akira Ikezoe

Yasuhiro Shirota

Takao Nakao

Hirofumi Taguchi

Takeshi Fukazawa

Koji Uchihashi

Shuuji Kimura

Koichi Oogaki

Takuhiro Tarumoto

Takeshi Maenaka

A vehicular electronic control apparatus includes a vehicle control section and a unit control section. The vehicle control section controls a function dependent on a vehicle equipment. The unit control section that controls a function of a unit provided in a vehicle. The vehicle control section and the unit control section are disposed in independent hardwares and software platforms, respectively.

Vehicular electronic control apparatus and method for controlling vehicle

A cylinder discriminating device includes a cylinder discriminating section. A crank rotor includes first and second non-tooth portions asymmetrically positioned on the crank rotor. The first non-tooth portion is positioned to correspond to a top dead center of a specific cylinder. A crank signal is outputted when each of the plurality of the tooth portions is detected. A cam signal is outputted when a predetermined tooth portion of a cam rotor is detected. And, the cylinder discriminating section discriminates the specific cylinder by detecting the first non-tooth portion based on number of the crank signals detected during a time period from a time when one of the first and second non-tooth portions is detected to a time when the other of the first and second non-tooth portions is detected, and by detecting whether or not the cylinder discriminating section detects the cam signal during the same time period.

Cylinder discriminating device and method thereof, and engine ignition control device and method thereof

A knock detection apparatus which is capable of changing a knock control starting time period appropriately so as to prevent erroneous knock determination, to thereby expand a knock control range. A peak value acquisition unit acquires a peak value of a vibration of an internal combustion engine during each rotation cycle of a crankshaft of the engine. A background calculator calculates a background by averaging peak values acquired by the peak value acquisition unit. A knock determination unit performs knock determination based on whether a peak value acquired by the peak value acquisition unit is higher than a predetermined level above the background, and feedback controls knock in the engine according to a result of the knock determination. A temperature acquisition unit acquires a temperature of the engine during a start of the engine. A knock determination controller inhibits operation of the knock determination unit until a predetermined time period determined according to the engine temperature acquired by the temperature acquisition unit has elapsed.

Knock detection apparatus and knock detection method

The present invention relates to a software module, and, especially, relates to a software module for integration having severe restriction on the available memory amount and the real-time operation, and provides a software module for integration having increased inheritance in software. This is a software module for integration, integrated as a software module within a device to control the device. The software module has a public module for updating a public data value, an intermediate module for converting the data value in a predetermined data format updated in the public module into a data value in a predetermined data format adaptable to a referencing side, and a referencing module for referencing the data value in a predetermined data format converted by the intermediate module. The publication and referencing process can be implemented among the modules.

Software module for integration

A control system enables a considerable decrease in electric power consumption of backup power, leading to effective prevention of a dead battery, while data in each control unit which need be maintained even after power is turned off is properly maintained. An ECU has a first transmitter to transmit data which need be maintained to an ECU for storage when a change in position of an IGSW connected to a battery to the off position is detected, and a power supply cutoff circuit to cut off the power supply to the other ECUs after the completion of the transmission of data to the ECU for storage by the first transmitter, wherein the ECU for storage has a first storage controller to store the data transmitted from the other ECUs in RAM, and a power switching circuit to detect the change of the IGSW to the off position and switch the power of the ECU for storage to the backup power.

Control system

Growing community of inventors

Hyogo, Japan

Hiroshi Arita