Nissan Motor Company Limited

Mitutoyo Corporation

Jatco Corporation

Tadashi Iwamoto

Kentaro Nemoto

Masaoki Yamagata

Takashi Watanabe

Eisuke Moriuchi

Tetsuya Fuke

Yugo Motegi

Tetsuya Furumaya

Yoshimasa Nishihiro

Masayoshi Nakasaki

Shouta Hamane

Yukifumi Ootsuka

Akira Takano

Atsushi Tezuka

Toshihisa Takai

Nobuyoshi Machida

Hidetaka Yamamoto

Yoshihisa Tanimura

A step corresponding control of adjusting driving force of the front wheel motor and driving force of the rear wheel motor when the vehicle passes through a step is executed. In the step corresponding control, after a front wheel ride-up timing at which the front wheel rides up the step and before a rear wheel ride-up timing at which the rear wheel rides up the step, a first control mode in which the front wheel motor is regenerated and the rear wheel motor is powered is executed. In the step corresponding control, after the execution of the first control mode and before the rear wheel ride-up timing, a second control mode in which the front wheel motor is powered and the rear wheel motor is regenerated is executed.

Driving force control method and driving force control device

In an internal combustion engine, fuel injection is stopped to automatically stop the engine when automatic stop conditions are met. When there is a request to restart the engine while an engine speed is decreasing due to automatic stoppage, the engine is started by resuming fuel injection if the engine speed is equal to or greater than a combustion recoverable rotational speed threshold, at which restarting is possible only by fuel injection. When there is a request to restart the engine while an engine speed is decreasing due to automatic stoppage, the engine is started using a starter motor if the engine speed is less than the combustion recoverable rotational speed threshold. When there is a request to restart the engine in a brake ON state, the engine is not started by resuming fuel injection, but rotated and started using the starter motor.

Method for controlling internal combustion engine, and device for controlling internal combustion engine

In an internal combustion engine, fuel injection is stopped to automatically stop the engine when automatic stop conditions are met. The engine is started in response to a request to restart the engine while an engine speed is decreasing due to an automatic stoppage by resuming fuel injection if the engine speed is equal to or greater than a combustion recoverable rotational speed threshold, and by using an electric motor if the engine speed is less than the combustion recoverable rotational speed threshold. When the engine speed of the internal combustion engine falls below the combustion recoverable rotational speed threshold while the engine speed is decreasing due to an automatic stoppage, an amount of air entering cylinders is reduced to be less than before the engine speed fell below the combustion recoverable rotational speed threshold.

Method for controlling internal combustion engine and device for controlling internal combustion engine

A shape measuring apparatus includes a first light source, a second light source, an optical system, an image capturer, and a controller. The first light source emits visible light. The second light source emits measurement light used in a measurement. The optical system emits the visible light and the measurement light at the same position on a work piece. The image capturer captures an image of the measurement light reflected by the work piece. The controller is configured to cause the emission of the visible light onto the work piece with the first light source when determining a measurement position, and to control the emission of the measurement light onto the work piece with the second light source when making the measurement.

Shape measuring apparatus

A coordinate measuring machine includes a mount for a workpiece, an arched frame straddling the mount, a slider movable along the frame, and a probe supported by the slider and pointed at the mount. A rotor enables the mount and the frame to relatively rotate. An XY-motion mechanism enables the mount to move in a direction along a surface of the mount.

Coordinate measuring machine and coordinate measuring method

A sailing stop control method for a vehicle including a transmission and a friction engaging element in series between an engine and drive wheels includes performing a sailing stop control to coast by shutting off power transmission by the friction engaging element, stopping the engine based on satisfaction of a sailing enter condition, restarting the engine upon satisfaction of a sailing exit condition during coasting by the sailing stop control, executing a shift control to set a target speed ratio of the transmission to a highest speed ratio smaller than a coasting speed ratio in normal time and satisfying engine exhaust performance after the restart of the engine if the sailing exit condition is a brake pedal depressing operation, and re-engaging the friction engaging element, if input and output revolution speeds of the friction engaging element are determined to be a synchronous revolution speed after end of the shift control.

Sailing stop control method and control device for vehicle

A vehicle traveling control method includes determining a driver's intention for acceleration during vehicle traveling, predicting, when a determination is made that the driver has no intention for acceleration, which is superior between a first fuel consumption reduction effect by inertial traveling and a second fuel consumption reduction effect by deceleration energy regeneration, the inertial traveling making the vehicle travel, with power transmission disconnected between an engine and a drive wheel of the vehicle, and the deceleration energy regeneration inputting rotational power of the drive wheel of the vehicle to an electric motor, and performing inertial traveling when a prediction is made that the first fuel consumption reduction effect by inertial traveling is superior to the second fuel consumption reduction effect by deceleration energy regeneration.

Vehicle traveling control method and vehicle traveling control device

Variator () and forward clutch (Fwd/C) disposed in series are provided between engine () having starter motor () and driving wheel (). Sailing stop control that, on the basis of satisfaction of sailing entering condition, interrupts power transmission by frictional engagement element (Fwd/C), stops engine () and performs coast-travel is performed. When sailing entering condition is satisfied, coast-travel is started with rotation stop timing of variator () being delayed with respect to rotation stop timing of engine (). When accelerator pedal depression operation intervenes after start of coast-travel, engine () is restarted by starter motor (). When judged that input and output rotation speeds of frictional engagement element (Fwd/C) become synchronization rotation speed after restart of engine (), frictional engagement element (Fwd/C) is reengaged. Shift response from coast-travel to normal travel is therefore improved at change-of-mind at which sailing quitting condition is satisfied during progress of automatic stop of engine.

Method and system for controlling sailing stop in vehicle

A vehicle control device disengages a clutch provided between an engine and a driving wheel at a brake-off and an accelerator-off during traveling of the vehicle, and stops the engine and carries out inertia traveling. The vehicle control device starts the engine by the push-start by engaging the clutch and by transmitting the power of the driving wheel to the engine, if it is determined that a brake pedal has been depressed during the inertia traveling.

Vehicle control device and vehicle control method

A vehicle traveling control method includes starting, when a predetermined condition is satisfied, inertial traveling during which a vehicle travels while stopping fuel supply to an engine of the vehicle, measuring, from a start of the inertial traveling, a temperature decrease amount occurring in a heat exchanger for heating a cabin of the vehicle with heat generated by the engine, and stopping the inertial traveling when the temperature decrease amount is greater than a threshold.

An air conditioning device for vehicle includes a refrigeration cycle including a compressor for sucking, compressing and discharging a refrigerant, a condenser for condensing the high-temperature and high-pressure refrigerant discharged from the compressor, an expansion valve for decompressing the refrigerant condensed in the condenser and an evaporator for evaporating the refrigerant through heat exchange between the refrigerant reduced in pressure by the expansion valve and surrounding air. This air conditioning device for vehicle increases an operation rate of the compressor more than that before a vehicle speed drops below a first permitted vehicle speed higher than a fuel cut recovery vehicle speed when an air conditioner is on, at which the compressor is actuated, when the vehicle speed drops below the first permitted vehicle speed during the deceleration of a vehicle associated with a fuel cut.

Air conditioning device for vehicle and air conditioning control method for vehicle

A shape measuring apparatus includes: an irradiating part configured to irradiate work with a linear line laser, the irradiating part including: a light source configured to produce laser light; a first optical member configured to linearly spread the laser light from the light source and generate the line laser; and a second optical member, provided between the light source and the first optical member, configured to adjust an area of irradiation with a line laser on the work; a first sensor configured to receive a line laser reflected by the work and capture an image of the work; a lens configured to form an image of a line laser reflected by the work on an imaging surface of the first sensor; and a control part configured to control adjustment of the area of irradiation with the line laser on the work by the second optical member.

An illumination apparatus according to the present invention includes a light source, a reflecting mirror, an optical system, and a calculator. The reflecting mirror includes a first reflector and a second reflector, and is capable, while changing a reflection angle, of reflecting and directing at an object a first divided light, the first divided light being a portion of light from the light source emitted at the first reflector. The optical system divides the light from the light source into the first divided light and a second divided light, and guides the second divided light to the second reflector. The calculator is capable of calculating the reflection angle of the reflecting mirror by receiving the second divided light reflected by the second reflector.

Illumination apparatus, illumination method, measuring apparatus, and measuring method

A vehicle air conditioner control system has an air conditioning device has a compressor, a condenser, an expansion valve, and an evaporator, a compressor running rate control device, a deceleration fuel cutoff executing device, and a fuel supply recovery executing device that cancels cutoff of fuel supply and recovers fuel supply at a higher vehicle speed during vehicle deceleration fuel cutoff period with air-conditioner ON than during vehicle deceleration fuel cutoff period with air-conditioner OFF. The compressor running rate control device increases the compressor running rate for a predetermined period just before a fuel supply recovery time with air-condition ON during the deceleration fuel cutoff period more than during non-execution of the deceleration fuel cutoff, and subsequently decreases the compressor running rate at or just before the fuel supply recovery time with air-condition ON equal to or less than during non-practice of the deceleration fuel cutoff.

Vehicle air conditioner control system

An optical probe includes a probe cover, within which is installed an optical system having an illuminating optical system and a receiving optical system. An emitting region and an incidence region through which light passes are provided to a bottom surface of the probe cover, the bottom surface forming an opposing region opposite a work piece. The bottom surface forms a surface where, of the light reflected from the work piece, light following a direct reflection direction is reflected in a direction moving away from the incidence region, from a position where light emitted from the emitting region is emitted at the work piece. Accordingly, an amount of second order reflected light striking the incidence region can be suppressed and, therefore, an occurrence of an erroneous value in received light distribution can be suppressed.

Growing community of inventors

Kawasaki, Japan

Tadashi Iwamoto