Fuji Jukogyo Kabushiki Kaisha

Nippon Telegraph and Telephone Corporation

Yuji Soejima

Akira Takahashi

Aiko Oi

Motomu Nakajima

Tohru Akiyama

Kosuke Sakata

Yuichi Suto

Masataka Sato

Kimihiko Fukami

Shingo Horiuchi

[Problem] A lead time for providing a network service can be shortened. [Solution] A network service management apparatusthat uses resources included in a network functions virtualization infrastructureto provide a network service includes an orchestratorthat defines resources that satisfy a resource requirement of a virtual network function constituting the network service and are allocated to the virtual network function, and reserves the resources, and a virtualized infrastructure managerthat secures the reserved resources, activates the virtual network function on the secured resources, and generates the network service. When the securing of the reserved resources fails, the orchestratorre-reserves resources to replace the reserved resources, and the virtualized infrastructure managersecures the re-reserved resources, and activates the virtual network functions on the secured resources.

Network service management device, network service management method, and network service management program

An operation apparatus for outputting a request to a management apparatus which manages a Network Service (NS) constructed on a NetWork (NW) including a core NW serving as a virtualization area and an access NW serving as a non-virtualization area including: a storage unit configured to store new configuration information obtained by updating NW configuration information indicating an NW configuration including devices disposed on the NW due to a fault of the NS, a catalog which is a template of the NS, a record describing a lifecycle of the NS, and an order for requesting the management apparatus to control the NS; an optimal configuration determination unit configured to determine an optimal configuration of the NS based on the new configuration information, the catalog, the record, and the order; and an order generation unit configured to generate a change order for changing an NS configuration of the NS to the optimal configuration determined by the optimal configuration determination unit.

Operation device and operation method

A management apparatus is configured to manage a network service (NS) constructed on a network (NW) including a core NW configured to serve as a virtualization area and an access NW configured to serve as a non-virtualization area includes an E2EO configured to control the NS, an SVRO configured to control server-type apparatuses located on the NW, and a NWRO configured to control NW-type apparatuses located on the NW. The E2EO includes a single data center (DC) determination unit configured to determine whether a group of apparatuses used for providing the NS is located in a single DC. The group of apparatuses is designated by an order acquired from an upper level apparatus U. Among the NW-type apparatuses, ToRs located in the DC are controlled by the SVRO, instead of by the NWRO, when it is determined that the group of apparatuses is located in the single DC.

Management device and management method

[Problem] A network service selection apparatus is provided that is able to suitably realize dynamic switching of a network service with a simple method. [Solution] A network service selection apparatusis provided that includes a network service switching unitconfigured to, based on a specification of a network service stored and a service request from a user terminal apparatus, extract a combination of the network services of an initial operation and a spare network service and to connect two service providing systems corresponding to the combination of the network services of the initial operation, and a network service state confirmation unitconfigured to confirm a state of a network service between the two service providing systems

Network service selection device and network service selection method

In a vehicle having an ABS control system, a braking control of a right and left rear wheels can be independently carried out when a lateral acceleration exceeds a lateral acceleration value set beforehand. When the ABS control is operated at one of the right and left rear wheels, the control system executes a stepwise pressure increase control which provides a stepwise pressure increase for the other rear wheel up to a braking pressure to be reached at a start of the control.

Braking force control system for vehicle

A braking force distribution control apparatus for a vehicle has a lateral acceleration detecting unit detecting lateral acceleration of the vehicle, a longitudinal acceleration detecting unit detecting longitudinal acceleration of the vehicle, a vehicle speed detecting unit detecting a vehicle speed, and a braking control unit adapted to select. When preset conditions for brake operating time are satisfied, the braking control unit executes one of select-low control and independent braking control in accordance with the lateral acceleration, the longitudinal acceleration and the vehicle speed, the select-low control controlling braking forces of left and right wheels depending on a wheel on the side with a large slipping condition. The independent braking control system independently controls the braking force for each wheel in dependency on the slipping condition of each of the wheels.

A motor vehicle is provided with a steering control system in which rear wheels are steered in response to steered angle of front wheels and vehicle speeds. The control system includes a first speed sensor for detecting a vehicle speed in association with a rotation of the front wheels and a second speed sensor for detecting a vehicle speed in association with a rotation of the rear wheels. The steering of the rear wheels is controlled by a steering control unit in dependency on a ratio of a vehicle speed signal from the first speed sensor with respect to a vehicle speed signal from the second speed sensor. Thus, the steering control unit transmits a signal for restricting steering of the rear wheels in a case where a condition in which the ratio of the vehicle speed signals from the first and second sensor is out of a predetermined range continues for a predetermined time.

Steering control system of motor vehicle

A rear-wheel steering system is provided in a four-wheel steering vehicle having at least a front-wheel steering angle sensor, a vehicle speed sensor, a control unit for carrying out rear-wheel steering control in dependency on signals detected by these sensors, and an electric motor controlled by the control unit to steer the rear wheels. This rear-wheel steering system is provided with detecting means for detecting front-wheel steering force, front-wheel lateral force or lateral acceleration of the vehicle. The control unit is provided with a front-wheel neutral point correction means for determining the zero point of the front-wheel steering angle which causes the rear-wheel steering angle to be zero with respect to a signal indicating that the front-wheel steering force, the front-wheel lateral force or the lateral acceleration of the vehicle thus detected by the detecting means is substantially zero.

Rear-wheel steering system for four-wheel steering vehicle

A motor vehicle has a crossmember for supporting a rear suspension system. The crossmember has a U-shaped cross section including a front plate and a rear plate. A part of the rear-wheel steering system is mounted on the rear plate of the crossmember, and another part of the rear-wheel steering system is mounted in the crossmember, a part of which is covered by underguards secured to the crossmember.

Mounting structure of a rear-wheel steering system for motor vehicles

A rear wheel steering device for automotive vehicles, of the type in which a double-link type of rear suspension having the rear wheels supported by the front and rear suspension arms so as to be movable in an upward and a downward directions. The rear wheel steering device includes supporting pins supporting the base end portions of at least one of the front and the rear pairs of arms to the suspension cross member of the automobile body and supporting shafts supporting the other pair of arms to the automobile body, with one of the end portions of the supporting shafts being rotatably mounted to the suspension cross member. The other end portions of the supporting shafts have eccentric shaft portions connected by a connecting rod so that the position of the eccentric shaft portions changes substantially in a range of 0.degree.-180.degree.. The pair of left and right eccentric shaft portions are inserted in sliding bushes comprising an elastic circular ring and an inner cylinder rotatably supporting the base end portions of either pair of said rear arms. The device also includes an actuator to rotate the supporting shafts in accordance with automobile speed, front wheel turning angle and front wheel steering force.

Growing community of inventors

Tokyo, Japan

Yuji Soejima