Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Denki K.k.

Mitsubishi Electric Corporation

Fujitsu Ten Limited

National Institute of Information and Communications Technology, Incorporated

Toyota Infotechnology Center Co. Ltd.

Sekisui Aqua Systems Co., Ltd.

Hitoshi Inoue

Akira Demizu

Shinichi Nishida

Masanobu Uchinami

Toshihisa Takahashi

Ryoji Nishiyama

Hideaki Katashiba

Hideaki Tani

Koji Nishimoto

Morio Fujiwara

Shinji Watanabe

Makoto Honda

Kenji Ogawa

Setsuhiro Shimomura

Hiroshi Harada

Kiyohide Okamoto

Osamu Maeda

Teruaki Kawakami

Kenji Kataoka

Akihisa Yokoyama

Takahiro Moronaga

Masakazu Sugai

Akiyoshi Katayama

Hideaki Takei

Ryohei Takahashi

Tadatoshi Takayanagi

Ryosuki Okita

Kohji Hasunaka

Kenji Katazawa

Souichi Shibata

Fumihiko Okagawa

To provide a signal processing section of a software radio device or the like which can dynamically change connection itself of an internal function structure at the time of execution. A switching module ISM() or the like selects and uses one of the plurality of the routing tables () or the like prepared according to the signal processing and executes routing control to respective processing modules aor the like based on the input data packet. The processing module aor the like executes each processing by using a parameter table or the like indicating the processing to be performed in accordance with the data packet. A signal processing device () or the like inputs a parameter packet containing an identifier such as the processing module aor the like and the content of the parameter table such as the processing module aor the like via a rewriting path from the outside and transmits the parameter packet to the processing module aor the like specified by the identifier according to a predetermined condition, thereby dynamically rewriting the content of the parameter table via the rewriting path.

Signal processing device, method, and computer readable medium

An ion current corresponding to an amount of ion produced by combustion of air fuel mixture in a combustion chamber of an internal combustion engine is detected and an ion current parameter indicative of combustion state is calculated from the ion current. The properties of fuel are determined by a change of combustion state from an engine start time, that is, by a change of the ion current parameter.

Internal combustion engine control device

An ignition timing control apparatus can obtain high output torque without generating output torque loss, and avoid the deterioration of audibility due to successive knock occurrences. A cylinder specific ignition timing setting section includes a reference ignition timing control section, and a cylinder specific correction value setting section having correction values of the same number as that of engine cylinders. The reference ignition timing control section calculates reference ignition timing common to all the cylinders and uniformly controls the ignition timings of all the cylinders to a retard angle side to prevent the occurrence of successive knocks. The cylinder specific correction value setting section calculates cylinder specific correction values to compensate for variation in the cylinder specific optimal ignition timings, and sets the cylinder specific correction values for cylinders other than those whose knock frequency becomes equal to a predetermined value or more so as to advance their ignition timings.

Ignition timing control apparatus for internal combustion engine

A combustion variation value is detected, and a function that uses the detected combustion variation value is added to CVAR(i&#x2212;1) to obtain CVAR(i); and using the resulting value, an exhaust gas recirculation amount and an ignition timing are obtained. A combustion variation is detected, and if the detected combustion variation value is equal to or greater than a predetermined value, the value of flag is set to be 1, and the exhaust gas recirculation amount and the ignition timing are reset to previous values. If the detected combustion variation value is less than the predetermined value, the value of the flag is set to be zero, and a current combustion variation manipulation correcting amount CVAR(i) is updated. If the value of flag is 1, the process is immediately terminated.

Control device for internal combustion engine

A starting fuel injection control device for an internal combustion engine including a unit for estimating the starting ability of the internal combustion engine, a crank angle detecting unit for outputting a crank angle signal in synchronization with a specific crank angle position of each cylinder of the internal combustion engine and a cylinder discriminating unit for discriminating a reference crank angle of a specific cylinder. The device also includes a unit for simultaneously injecting fuel to all the cylinders before the completion of the cylinder discrimination at the starting time and a unit for starting the independent injection by turns separately for each cylinder in synchronization with the crank angle signal from the time just after the completion of the cylinder discrimination, and a unit for starting simultaneously injects fuel to another cylinder where intake is possible.

Starting fuel injection control device of internal combustion engine

Rotating biological contactor-type sewage treatment equipment of the present invention comprises a treatment tank for storing sewage to be treated, a rotation shaft which extends across opposed side walls b of the treatment tank , a plurality of rotating discs mounted at a predetermined interval on the rotation shaft in such a manner that each disc is partly submerged in the sewage stored in the treatment tank , and a driving means for supplying a driving force to the rotation shaft in order to rotate the rotating discs . This equipment treats sewage by rotating the rotating discs on which aerobic bacteria are attached, thereby allowing the aerobic bacteria to contact the sewage and aerobically decompose pollutants in the sewage. Each of the rotating discs is composed of n portions of sector-shaped segments , wherein n is an integer not less than 1, and each of the sector-shaped segments is composed of two equally divided sector-shaped pieces . Each of the sector-shaped pieces has thin elements which form square grid-like meshes of the same size, except in the neighborhood of a periphery surrounding each sector-shaped piece ; and the thin elements extend vertically and horizontally relative to one side of each sector-shaped piece , with crossing each other.

Rotating disk type sewage treatment device

A starting control apparatus for an internal combustion engine capable of ensuring proper starting performance with a fuel injection quantity of a lean air-fuel ratio while reducing HC discharge quantity in an engine start phase with high reliability. During a period from the start of cranking to occurrence of complete explosion in the engine starting phase, the fuel injection quantity charged to individual cylinders on a cylinder-by-cylinder basis and the ignition timing for igniting the fuel are properly set for each of the individual combustion strokes taking place sequentially among plural cylinders. An optimal combination of the fuel injection quantity and the ignition timing is realized for thereby producing required torque just enough in the individual combustion strokes.

Starting control apparatus for internal combustion engine

Air-Fuel ratio control apparatus for an internal combustion engine and controlling method

The present invention provides a battery charge and discharge system whereby a cost reduction can be achieved due to a reduction in count of components constituting the system, and a battery charge and discharge system which controls the charge of an auxiliary battery installed separately from a main battery, has a slave with the auxiliary battery mounted thereon, which is communicably connected with a master and controls the permission/inhibition of the charging of the auxiliary battery based on the judgments of whether or not the master is in sleep mode.

Battery charge and discharge system for inhibiting or permitting charging of an auxilary battery

An engine control device comprises: crank angle sensor provided for the cylinders of an engine; cylinder internal pressure sensor for detecting the internal pressures of the cylinders according to the output signals of the crank angle sensor; pressure normalizing unit for normalizing the cylinder internal pressures thus detected, according to the cylinder internal pressure which is obtained when the engine is in standard state; engine speed detector; charge efficiency calculating unit for calculating the charge efficiencies of the cylinders by using the output signals of the pressure normalizing unit and the engine speed detector; operating condition detecting unit for detecting the outputs of the pressure normalizing unit and the engine speed detector as operating conditions, calculation control unit for calculating the air/fuel ratio and the ignition timing of each cylinder according to the operating conditions; and adjusting unit for adjusting the air/fuel ratios and ignition timing of the cylinders according to the output of the calculation control unit, thereby to control the air/fuel ratios and ignition timing of the cylinders with high accuracy.

Engine control device

A control device for a vehicular engine having an automatic transmission comprising: an inner cylinder pressure sensor for detecting a pressure in a combustion chamber of an engine; means for detecting an output of the inner cylinder pressure sensor at a predetermined crank angle; means for calculating an output torque of the engine based on the detected output of the inner cylinder pressure sensor; means for detecting a rotation speed of an engine; means for detecting a rotation speed of an output shaft of a torque convertor; means for calculating a speed ratio of the rotation speed of the output shaft of the torque converter as compared to the rotation speed of the engine; means for calculating a torque of an output shaft of an automatic transmission based on the output torque of the engine, the rotation speed of the engine, the rotation speed of the output shaft of the torque converter and the speed ratio; and control means for controlling at least one of the output torque of the engine and a hydraulic pressure of the automatic transmission such that the torque of the output shaft of the automatic transmission conforms to a target torque.

Control device for vehicular engine having an automatic transmission and

An internal combustion engine control system comprises a pressure sensor for detecting pressure within an engine cylinder of an internal combustion engine, a crank angle sensor for detecting an engine cylinder identification number and a crank angle in synchronism with rotation of the engine, an intake air flow sensor disposed within an air intake pipe of the engine for detecting an intake air flow, and an exhaust gas recirculation flow control apparatus for controlling electrically a flow of exhaust gas of the engine recirculated to the engine by determining difference in the pressure within the engine cylinder between predetermined crank angles during a compression stroke of the engine on the basis of output signal of the pressure sensor, determining a first engine charging efficiency on the basis of the outputs of the crank angle sensor and the pressure difference, converting the intake air flow derived from the output of the intake air flow sensor to a second engine charging efficiency on the basis of the output of the crank angle sensor and by determining an exhaust gas recirculation ratio on the basis of the first and second engine charging efficiencies. The exhaust gas recirculation as well as control thereof is realized by an electronic programmable engine control unit.

Control system for internal combustion engine

An apparatus for detecting the in-cylinder pressure of an internal combustion engine having a plurality of cylinders and for providing in-cylinder pressure parameters is described which comprises a plurality of pressure sensors for detecting the pressures in the respective cylinders, a signal selector, a microcomputer and a crank angle sensor. The signal selector sequentially selects the pressure signals from the pressure sensors to be transfer to the computer and the computer computes the pressure parameters in accordance with the received signals for each of the cylinders. The operation of the apparatus is executed by referring to the crank angle signal from the crank angle sensor.

Apparatus for detecting and calculating the indicated mean effective

A control apparatus of an internal combustion engine which comprises: a pressure detecting means for detecting an inner cylinder pressure of each cylinder of a plurality of cylinders of the internal combustion engine; a crank angle detecting means for detecting a crank angle of the internal combustion engine; indicated mean effective pressure calculating means for calculating an indicated mean effective pressure of each cylinder from an output of the pressure detecting means and an output of the crank angle detecting means; load detecting means for detecting a load of the internal combustion engine; engine speed detecting means for detecting the internal combustion engine speed from an output of the crank angle detecting means; running condition determining means for determining a running condition of the internal combustion engine from an output of the load detecting means and an output of the engine speed detecting means; and averaging and controlling means for controlling at least one of an air-fuel ration and an ignition timing independently for each cylinder, so that an average value of each indicated means effective pressure of the plurality of cylinders is independently maximized, based on an output of the indicated mean effective pressure calculating means, under a predetermined running condition determined by the running condition determining means.

Control apparatus of an internal combustion engine

An internal-combustion engine control device includes a pressure sensing device for sensing a cylinder pressure of the internal-combustion engine, a crank angle sensing device for sensing a crank angle, an indicated mean effective pressure computing device for computing the illustrated mean effective pressure from the output of the pressure sensing device and the output of the crank angle sensing device, an indicated device effective pressure averaging means for averaging the output of the indicated mean effective pressure computing device, a load sensing device for sensing a load of the internal-combustion engine, a speed sensing device for sensing an engine speed of the internal-combustion engine from the output of the crank angle sensing device, an operating condition judging device for judging the operating condition of the internal-combustion engine from the output of the load sensing device and the output of the speed sensing device, and a control device for controlling at least one of air-fuel ratio and an ignition timing so that the mean value of an the indicated mean effective pressure will become a maximum value, under a designated operating condition judged by the operating condition judging device. Even when engine components have variations or are subjected to a change with time or a change in environmental conditions, the engine can be operated at all times with optimum air-fuel ration and optimum ignition timing. That is, the control device insures improved output torque, low fuel consumption, improved responsiveness, and operating stability.

Growing community of inventors

Amagasaki, Japan

Hitoshi Inoue