Nissan Motor Company Limited

Canon Kabushiki Kaisha

Unisia Jecs Corporation

Hideyuki Tamura

Shoji Furuhashi

Hiroyuki Yamamoto

Masaharu Asano

Kenichi Goto

Toshio Enoshima

Mitsuru Kasanami

Koichiro Tanaka

Akihiro Katayama

Kenichi Machida

Takahiro Oshino

Hiroaki Sato

Shinji Uchiyama

Hatsuo Nagaishi

Satoru Watanabe

Masaaki Uchida

Tomoaki Kawai

Hiroyuki Ueda

Kenji Ikeura

Toshikazu Ohshima

Nobutaka Takahashi

Hiroshi Okazaki

Hiromichi Miwa

Toshio Takahata

Mikio Matsumoto

Takashi Aramaki

Hiroshi Sanbuichi

Masatoshi Okutomi

Yasuo Seimiya

Asami Kubo

Hiroaki Satoh

Kenichi Gotoh

Upon observation of multi-viewpoint images, even when the viewpoint moves continuously, the image cannot normally be displayed in correspondence with the continuous movement of the viewpoint, and an image from a viewpoint closest to the current viewpoint is displayed. To prevent this, each two adjacent images of the multi-viewpoint images are interpolated by detecting corresponding pixels and generating an interpolated image in accordance with the correspondences among pixels. The interpolated image is generated in such a manner that an epipolar plane image is generated by juxtaposing corresponding lines of the multi-viewpoint image, straight lines are detected from the epipolar plane image, and the intersecting points between interpolated lines and the detected straight lines are detected as interpolated pixels. In this case, as for a point for which a straight line cannot be detected, a straight line passing the point is estimated, thereby generating an interpolated pixel. When a plurality of straight lines are detected for a pixel of interest, the priority level is assigned to the pixel of interest in correspondence with the number of detected straight lines. When the priority level is smaller than that of another pixel through which the detected straight line passes, the straight line is ignored, and an interpolated pixel is not generated.

Image forming method and apparatus

When a vehicle is decelerating a controller of a motor-generator ( ) computes a target charging current according to a charge state of a high voltage battery by a target charging current computing unit ( ), and limits this current by a first limiter ( ) having a limiter value. An electrical load current supplied to vehicle-mounted electrical loads is computed by an electrical load current detecting unit ( ). A target generation current produced by the motor-generator ( ) is computed by adding the target charging current and electrical load current, by a target generation current detecting unit ( ). This computed value is limited by a second limiter ( ) having a limiter value which varies according to an engine rotation speed, ON/OFF state of an air-conditioner and speed ratio. When the vehicle is decelerating the motor-generator ( ) is made to function as a generator driven by recovery energy, the high voltage battery and a low voltage battery for the vehicle-mounted electrical loads are charged without overcharging and excessive vehicle deceleration is prevented.

Control device of a hybrid vehicle

Whether or not an object to be rendered in stereo images is inside of a fusional area is determined on the basis of a focus point and positions of eyes of a viewer. By using characteristics of a view sight of a human in which an object in a fusional area of human eyes can be clearly recognized as a single solid, however, if an object is not in the fusional area, the object is recognized as vague overlapped images, an object which is inside of the fusional area is rendered by using an image generating algorithm capable expressing in high precision. In contrast, an object which is outside of the fusional area is rendered by using an image generating algorithm which requires lighter calculation load than the former image generating algorithm.

Method and apparatus for stereo image display

Each two adjacent images of multi-viewpoint images are interpolated by detecting corresponding pixels and generating an interpolated image in accordance with the correspondence among pixels. The interpolated image is generated in such a manner that an epipolar plane is generated by juxtaposing corresponding lines of the multi-viewpoint image, straight lines are detected from the epipolar plane image, and the intersecting points between interpolated lines and the detected straight lines are detected as interpolated pixels. In this case, as for a point for which a straight line cannot be detected, a straight line passing the point is estimated, thereby generating an interpolated pixel. When a plurality of straight lines are detected for a pixel of interest, a priority level is assigned to the pixel of interest in correspondence with the number of detected straight lines. When the priority level is smaller than that of another pixel through which the detected straight line passes, the straight line is ignored, and an interpolated pixel is not generated.

Image processing method and apparatus for generating an image from the viewpoint of an observer on the basis of images obtained from a plurality of viewpoints

A diagnostic system for a fuel system of an internal combustion engine such as direct-injection gasoline engine monitors a pressure deviation of a actual fuel pressure sensed by a fuel pressure sensor from a desired fuel pressure in a feedback fuel pressure control, and thereby detects abnormality in the fuel system. When the pressure deviation continues to be outside a normal range, a diagnostic controller commands engine operation in a homogeneous stoichiometric combustion mode, and monitors a feedback correction quantity in a feedback stoichiometric air fuel control during the engine operation in the homogeneous stoichiometric combustion mode. The controller attributes the abnormality to the fuel pressure sensor if the feedback correction quantity of the air fuel ratio is fixed to an upper limit or a lower limit.

Diagnosis for fuel system of internal combustion engine

The present invention aims at preventing deterioration of driveability due to lean combustion, in a direct injection spark ignition type internal combustion engine. To this end, there is calculated a target engine-torque tTe which is to be generated by the engine, based on an engine driving condition, while detecting an actual engine-torque Te which is being actually generated by the engine. There is further calculated a deviation state quantity .DELTA.TQ=Te-tTe, which represents a deviation state between the target engine-torque and the actual engine-torque. Then, the lean combustion is inhibited when the deviation state quantity .DELTA.TQ is equal to or larger than a predetermined value. Namely, homogeneous lean combustion and stratified lean combustion are inhibited, and the combustion mode is switched to homogeneous stoichiometric combustion.

Control apparatus for direct injection spark ignition type internal

The present invention securely prevents the erroneous switching of the combustion mode to the stratified charge combustion, and avoids deterioration of the driving performance. In order to do so, apart from a software determination device inside a main CPU for performing the permission determination on the switching to the stratified charge combustion based on an input signal related to the engine drive condition, a hardware detection circuit (gate array) is equipped for performing the permission determination on the switching to the stratified charge combustion mode based on the input signal related to the engine drive condition. The main CPU is equipped with a combustion mode order device for finally ordering the stratified charge combustion by permitting the switching to the stratified charge combustion only when the two permission determinations both permit the switching to the stratified charge combustion. Further, a sub CPU is mounted which is equipped with a fail-safe device for based on the final permission determination from the main CPU and the permission determination from the hardware determination device, performing a fail-safe process when the two determinations are inconsistent.

Control apparatus of direct injection spark ignition type internal

An image processing system in which a process for implementing part of the display management function is provided separately from the window system or the operating system. In consequence, changes in the system configuration can be coped with only by conducting addition on a user program or the process which implements part of the display management function without modifying or altering the window system or the operating system. This eliminates modification or alteration of the window system or the operating program and increases the portability of the program.

Image processing system

An image processing apparatus includes an image memory for storing image information, an execution process for processing the image information stored in the image memory. A table is also included, for storing a use condition of the image information stored in the image memory, as well as a management process for managing a memory area of the image memory on the basis of the use condition stored in the table.

Method of managing an image memory by a process independent of an image

An apparatus and method for self diagnosing a plurality of engine component operation controlling systems applicable to an internal combustion engine in which when predetermined diagnostic conditions to start respective self diagnoses are simultaneously established for the respective engine component operation controlling systems, one of the self diagnoses having a higher priority is executed.

Apparatus and method for self diagnosing engine component controlling

A system for controlling an automotive devices, such as an automotive internal combustion engine, an engine accessory and so forth, is associated with a traction control system for cooperation therewith. The automotive device control system is so associated with the traction control system that normal mode control is disabled in response to initiation of the traction control for avoiding mutual interference of controls, or, in the alternative, a control signal value is modified for harmonizing automotive device control with the traction control.

System for controlling driving condition of automotive device associated

An engine misfiring detection system includes a crank angle sensor for generating a reference pulse representative of a reference crank angle position in each cylinder of the engine, and a ring gear sensor for monitoring a magnitude of crank angle rotated from the reference crank angle position so as to define a first crank angle position required for starting an angular velocity measurement for an engine crankshaft and a second crank angle position required for ending the angular velocity measurement. A controller is provided to determine an engine misfiring state on the basis of fluctuations in a measuring time reaching from the first crank angle position to the second crank angle position. The controller variably sets the first and second crank angle positions in response to changes in an ignition timing of the engine. The controller determines a tooth defect in the ring gear on the basis of a ratio of said measuring time and a time interval necessary to reach from the reference crank angle position in relation to a firing cylinder to the reference crank angle position in relation to the subsequent cylinder.

Misfiring detection system for internal combustion engines

The output of an oxygen sensor and the engine operation are monitored and, in the event that the voltage generated by the sensor remains within a predetermined window for a predetermined time while the engine temperature is above a predetermined level and the engine is operating within a given set of conditions which define a suitable testing zone, the sensor is indicated as malfunctioning.

Oxygen sensor operability sensing arrangement

An air/fuel ratio control system detects an air/fuel ratio indicative control parameter out of required precision range for initiating a control characteristics derivation process. The control characteristics derivation process is performed by varying constant consisting an air/fuel ratio dependent fuel delivery amount correction coefficient in trial basis to monitor fluctuation range of the correction coefficient. Based on the trial basis processings, the value of the constant is determined so as to compensate the precision level lowered in monitoring the air/fuel ratio.

Air/fuel ratio control system for internal combustion engine with

The throttle valve position of an engine is sensed and the effective cross sectional area of the induction passage is determined via table look-up. The table is recorded in terms of three parameters. The value thus derived is divided by the engine speed of alternatively a product of the engine speed and the engine displacement. A basic air induction quantity is then determined via table look-up and is subsequently modified using a correction coefficient to allow for the effect of engine speed on the same. The effect of injector position (viz., multi-point injection/single point injection) and/or the provision of a swirl control valve can be additionally taken into consideration via the use of suitable algorithms or additional two and three parameter system tables. If an idle control by-pass passage is provided, the effect of the opening degree is considered when determining the effective cross-section of the induction passage.

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Yokohama, Japan

Hideyuki Tamura