Nissan Motor Company Limited

Renault S.a.s.

Hiroya Fujimoto

Katsuya Moteki

Shunichi Aoyama

Satoru Hirose

Seigo Watanabe

Seiji Shimodaira

Takehiro Miyoshi

Yasuhisa Kishi

Shingo Kajiwara

Kazumasa Fujita

Junichi Kasai

Takayuki Arai

Satoshi Kawai

Yasuhito Miyazaki

Toshimitsu Matsuoka

Yasuo Yoshikawa

Ryousuke Hiyoshi

Takaya Fujita

A vehicle management method is provided for setting a travel plan for a vehicle (Vn) using a server () configured to manage vehicle requests from a plurality of users. This method includes specifying an available vehicle from among a plurality of the vehicles as an in-use vehicle on the basis of the vehicle requests from the users who request use of the vehicle (Vn), setting the travel plan including a travel route of the in-use vehicle by way of a boarding location for each of the users on the basis of the vehicle requests from the users, and in a case in which a user of the users is absent at the boarding location when the in-use vehicle arrives at the boarding location, setting a waiting time at the boarding location on the basis of the travel plan.

Vehicle management method and vehicle management apparatus

Terminal () used by a user includes a transmitter configured to transmit desire information required for determining a desired facility desired by the user to a server () via a telecommunications network. The server () includes a destination setting unit configured to set a destination of a vehicle on the basis of the desire information and a facility information acquisition unit configured to acquire, via the telecommunications network, facility information including information indicative of an empty situation of the desired facility. The vehicle includes an arrival time adjustment unit configured to manage a travel of the vehicle on the basis of the facility information to adjust an arrival time at which the vehicle arrives at the destination.

Vehicle management system, vehicle management device, and vehicle management method

A commercial vehicle operation system is provided with a server that can respectively communicate with a vehicle terminal of a commercial vehicle and with a user terminal owned by a user via a communication network. The server includes a communication unit, a vehicle operation information management unit that acquires and manages vehicle operation information including at least current location information of the commercial vehicle, and a roaming travel execution determination unit that determines whether to carry out roaming travel based on current location information of the commercial vehicle.

System for operating commercial vehicles

A vehicle management method includes calculating, based on a desired condition of each user sharing a ride on a vehicle, a first route for the vehicle to travel and a first required time for the vehicle to arrive at a destination on the first route, when a delay time with respect to the first required time exceeds a predetermined time while the vehicle is traveling along the first route, setting an alternative boarding location for a boarding location or an alternative deboarding location for a deboarding location based on the desired condition of each user, calculating a second route including the alternative boarding location or the alternative deboarding location and a second required time for the vehicle to arrive at a destination on the second route, and notifying the users of at least the alternative boarding location or the alternative deboarding location and the second required time.

Shared vehicle management method and shared vehicle management device

The present disclosure includes receiving, by a server (), experience information via a telecommunications network () from each of terminals () carried by respective users (A to E), the experience information being information regarding an experience desired by each of the users; extracting, in the server, two or more users to generate a single community for the experience information of the two or more users, the two or more users transmitting the experience information having a similarity level not less than a predetermined threshold; extracting, in the server, a destination () associated with the experience information having the similarity level not lower than the predetermined threshold using a database () configured to preliminarily store the experience information and the destination in association with each other; and transmitting the destination from the server via the telecommunications network to the terminals carried by the two or more users who constitute the single community.

Destination proposal system, proposal device, and proposal method

A route searching method using a route searching device for searching for a first route to reach a destination includes accumulating a history of activities of a driver in a database, when the history of activities is accumulated, setting a region based on a position on a map at which the history of activities is accumulated as a first region, increasing an area of the first region as the history of activities increases, and searching for a secondary route for reaching the destination from the first region using the route searching device.

Route searching method and route searching device

A vehicle guidance device has a stopping vehicle detector configured to detect stopping vehicles failing to pass through a traffic light while a light is green, the traffic light being installed beside a plurality of lanes extending in a same direction, an information acquisition unit configured to acquire a starting characteristic of each detected vehicle, and a simultaneous passage line calculator configured to calculate a simultaneous passage line including a first line and a second line based on the acquired starting characteristics, when a vehicle having a lower starting characteristic than a reference starting characteristic is included in the vehicles stopping on a first lane included in the plurality of lanes, and when a vehicle having a higher starting characteristic than starting characteristics of the vehicles on the first lane is included in the vehicles stopping on a second lane included in the plurality of lanes.

Vehicle guidance device and vehicle guidance method

In a piston actuation system of a V-type internal combustion engine with two cylinder banks having at least one pair of cylinders, a piston pin, an upper link, a lower link, and a control link are mechanically linked to each other for each cylinder bank. When changing a compression ratio of the engine, ends of the control links of the two cylinder banks are moved in synchronism. The lower links of the two cylinder banks are coaxially rotatably fitted on the outer periphery of the same crankpin whose axis is eccentric to the axis of the crankshaft.

Piston actuation system of V-type engine with variable compression ratio mechanism

A paired counterweights of a crankshaft have projected inner surfaces which protrude toward each other defining a given space therebetween. A plurality of links are arranged to convert a reciprocating motion of a piston to a rotational motion of the crankshaft. One of the links is pivotally connected to other links through link connecting portions and swingably disposed on a crank pin of the crankshaft so that upon rotation of the crankshaft, a peripheral portion of the link passes through the given space. At least one of the link connecting portions is placed within an imaginary circle which would be described by a radially innermost part of the projected inner surfaces of the paired counterweights when the paired counterweights turn about an axis of the crank pin.

Crank mechanism of reciprocating internal combustion engine of multi-link type

An internal combustion engine is constructed to include a variable compression ratio mechanism. The mechanism has the following structure. An upper link has one end pivotally connected to a piston pin of a piston of the engine. A lower link is pivotally disposed on a crank pin of a crankshaft of the engine and has one part pivotally connected to the other end of the upper link. A control shaft extends substantially in parallel with the crankshaft. A control link has an end pivotally connected to the other part of the lower link. The other end of the control link is connected to the control shaft through an eccentric bearing structure, so that rotation of the control shaft about its axis induces a pivoting of the lower link about the crank pin varying the stroke of the piston.

Internal combustion engine with variable compression ratio mechanism

A variable compression ratio mechanism of a reciprocating engine includes at least an upper link connected at one end to a piston pin and a lower link connecting the other end of the upper link to a crankpin. At top dead center, when hypothetical connecting points between the upper and lower links are able to be supposed on both sides of the line segment connecting the piston-pin center and the crankpin center, and the first one of the connecting points has a smaller inclination angle, measured in the same direction as a direction of rotation of the crankshaft, from the axial line of reciprocating motion of the piston-pin center and to a line segment connecting the piston-pin center and the first connecting point; as compared to the second connecting point, the first connecting point is selected as the actual connecting point.

Variable compression ratio mechanism of reciprocating internal combustion engine

A variable compression-ratio, multiple-link type reciprocating internal combustion engine has at least three links, namely an upper link, a lower link and a third link, for each engine cylinder. The upper link is connected to a piston pin, the lower link connects the upper link to a crank pin, and the third link is pivoted at one end to a body of the engine and connected at its other end to either of the upper and lower links to permit oscillating motion of the third link on the engine body. The upper link, the lower link, and the third link are dimensioned and laid out, so that the amplitude of a second-order vibration component of a vibrating system of reciprocating motion of the piston, synchronizing rotary motion of the crankshaft, is suppressed and reduced to below a predetermined threshold value, while realizing the same piston stroke and engine-cylinder height as a single-link type reciprocating internal combustion engine in which a piston pin and a crank pin are connected to each other by a single link.

Reciprocating internal combustion engine

A piston of an internal combustion engine, comprises a skirt portion in sliding-contact with a cylinder wall, an inner crown-plus-boss portion having a crown portion and piston-pin boss portions, and a stay portion interconnecting the skirt portion and the inner crown-plus-boss portion at a lower portion of the piston. Also provided is an annular partition groove through which a rim of the skirt portion and the inner crown-plus-boss portion are partitioned all around the circumference of the upper portion of the piston. A thermal-expansion absorption ring is tightly fitted into the annular partition groove in a gas tight-fashion. The top face of the inner crown-plus-boss portion, the flat face of the rim of the skirt portion, and the top wall of the thermal-expansion absorption ring serve as a piston crown.

Piston of internal combustion engine

In an engine cylinder block, a water jacket base wall is formed between a lower end of a water jacket outer wall and an intermediate part of a cylinder wall. A head bolt boss is formed in the water jacket outer wall for screwing in a head bolt. A thin part is formed in an intermediate part of the water jacket base wall. The rigidity of the water jacket base wall thereby falls, a force in the axial direction of the head bolt due to tightening of the head bolt or input of combustion pressure is absorbed by deformation of the water jacket base wall, and deformation of the cylinder wall is suppressed.

Engine cylinder block

An integral cast flywheel comprises a circular center flange portion, an annular mass portion concentric with the center flange portion, and an annular plate portion concentrically interposed between the center flange portion and the mass portion. Between the plate portion and the mass portion, there is defined an annular cavity which has an annular opening directed radially inward. The annular cavity is concentric with the center flange portion.

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Kanagawa, Japan

Hiroya Fujimoto