Patent application number | Description | Published |
20100191400 | VEHICLE BRAKE CONTROLLER - A vehicle brake controller that suppresses variation in deceleration when there is a changeover between regenerative braking torque and frictional braking torque due to regeneration coordination control. A controller performs the function of correcting the assist driving force. More specifically, under regeneration coordination control, the larger the value of change in regenerative braking torque, the smaller the value of change in primary piston becomes with respect to the value of change in input rod stroke. | 07-29-2010 |
20130041565 | VEHICLE BRAKE CONTROL SYSTEM - A vehicle brake control system has a braking detector and a braking controller. The braking detector determines whether a braking operation in a vehicle is within an initial braking stage based on a control condition of a frictional braking system. The braking controller performs initial braking stage control during the initial braking stage by controlling a regenerative braking system to provide a limited braking torque and the frictional braking system to provide a supplemental braking torque, the combination of which provides a target braking torque. The braking controller performs subsequent braking control when the initial braking stage ends to provide an increased regenerative braking torque and a lower supplemental braking torque as the target braking torque. | 02-14-2013 |
20130085650 | VEHICLE BRAKE CONTROL SYSTEM - A vehicle brake control system includes a regenerative braking control component, a frictional braking control component, a calculating component and a controlling component. The regenerative braking control component controls a regenerative braking device to provide a regenerative braking torque. The frictional braking control component controls a frictional braking device to provide a frictional braking torque. The calculating component calculates a regenerative braking torque filter processing value based on a fluctuation frequency of the regenerative braking torque. The controlling component, during a first condition, operates a motorized power assist control device based on the regenerative braking torque filter processing value, instead of the regenerative braking torque, to moderate the frictional braking torque, such that the regenerative braking torque and the moderated frictional braking torque provide a target braking torque based on a braking operation. | 04-04-2013 |
20130289845 | BRAKING FORCE CONTROL DEVICE FOR VEHICLE - A brake control device is provided for a vehicle that includes a brake pedal, an electric booster, a master cylinder, a pedal depression force calculator, a pedal stroke sensor, a first target braking force portion calculator, a second target braking force portion calculator, a contribution degree setting section and a target braking force calculator. The contribution degree setting section sets the contribution degree of a first target braking force based on a pedal depression force to be greater than a contribution degree of a second target braking force based on a pedal stroke when a target braking force is estimated to be low. The target braking force calculator calculates the first target braking force portion and the second target braking force portion according to the contribution degrees and obtains the final target braking force by adding the first target braking force portion and the second target braking force portion. | 10-31-2013 |
Patent application number | Description | Published |
20080209043 | SERVER MIGRATION PLANNING SYSTEM AND SERVER MIGRATION PLANNING METHOD - A server migration planning system for planning server migration from source servers to destination servers is provided. A processor allocates the respective source servers to any ones of the destination servers, based on the resource usage of the respective source servers and resource capacity of the respective destination servers. The processor selects the source servers one-by-one in descending order of the resource usage, selects any one of the destination servers, and makes a comparison between a comparison-object usage as the resource usage of the selected source server and a remaining amount of the resource capacity of the selected destination server. If the comparison-object usage is more than the remaining amount, the processor selects another destination server and then makes the comparison again. If the comparison-object usage is not more than the remaining amount, the processor allocates the selected source server to the selected destination server. | 08-28-2008 |
20100250734 | SERVER REASSIGNMENT SUPPORT SYSTEM AND SERVER REASSIGNMENT SUPPORT METHOD - A server reassignment support system has a storage device, a deallocated state estimation module and an allocation plan generation module. Stored in the storage device are an operation data indicating operation status of a plurality of physical servers and a plurality of virtual servers and a capacity data indicating resource capacity of each of the plurality of physical servers. The deallocated state estimation module refers to the operation data and the capacity data to extract an overloaded server from the plurality of physical servers, load of the overloaded server exceeding a threshold value depending on the resource capacity. Further, the deallocated state estimation module estimates a state in which at least part of virtual servers allocated to the overloaded server is deallocated as a deallocated server among the plurality of virtual servers. The allocation plan generation module generates an allocation plan for the deallocated server based on the estimated state. | 09-30-2010 |
20110022911 | SYSTEM PERFORMANCE TEST METHOD, PROGRAM AND APPARATUS - A system performance test method for testing performance of a server system includes: (A) a step of issuing a plurality of types of request sequences with a specified issuance ratio to the server system; and (B) a step of measuring performance of the server system during processing of the plurality of types of request sequences. Each of the plurality of types of request sequences is comprised of a sequence of requests to the server system. | 01-27-2011 |
20130014113 | MACHINE OPERATION PLAN CREATION DEVICE, MACHINE OPERATION PLAN CREATION METHOD AND MACHINE OPERATION PLAN CREATION PROGRAM - An operation plan of a minimum number of servers (processing nodes) required for satisfying performance requirement is created, and servers that need not to be operated are powered off to save power and computing resources. Specifically, a machine operation plan creation device compares a machine ID numbered in order starting from 1 with an hourly required machine count and, if the machine ID is not larger, determines that the machine needs to be operated. If each machine has plural hours, the plural hours are merged to reduce the number of hours. Here, if two hours are temporally continuous, the two hours are merged into a new hour. Alternatively, a start time of the first hour and an end time of the last hour are extracted from the plural hours, and a time period from the start time to the end time is set as a new hour. Moreover, a maximum required machine count is calculated from an hourly required machine count list. | 01-10-2013 |
20130185401 | CONFIGURATION MANAGEMENT DEVICE, CONFIGURATION MANAGEMENT METHOD, AND CONFIGURATION MANAGEMENT PROGRAM - [Problem] To provide a configuration management device which derives a combination of a plurality of types of devices having two indices where the total of a first index (P1) is equal to or greater than a specified value and the total of a second index (P2) becomes the minimum. | 07-18-2013 |
20150046480 | INFORMATION PROCESSING DEVICE FOR EXECUTING LOAD EVALUATION, AND LOAD EVALUATION METHOD - The present invention provides an information processing device that is capable of evaluating whether a desired load is being generated for application to a test-target system. The information processing device includes: a means that calculates the request rates per unit time on the basis of time series data for requests sent from a load generation device, aggregates the request rates on the basis of predetermined class data, and creates frequency distribution data; a means that acquires expected frequency distribution data, which is frequency distribution data expected when it is assumed that the distribution of request rates follows a desired probability distribution; and a means that carries out goodness-of-fit testing of the observed frequency distribution data with the probability distribution by using the created observed frequency distribution data and the acquired expected frequency distribution data. | 02-12-2015 |
20150058478 | INFORMATION PROCESSING DEVICE LOAD TEST EXECUTION METHOD AND COMPUTER READABLE MEDIUM - An information device provided with: a test storage unit that stores test scenarios that include standby time comprising multiple instances of processing in which a request is sent and response to the request is received, and in which the time between sending and receiving is time during which a TCP connection is disconnected; a generation unit that generates a load generation unit that executes a test scenario and applies a load to a system that has been designated as a target for having a load applied thereto; a parameter storage unit that stores parameters for determining the length of the standby time; a parameter adjustment unit that adjusts parameters so that the desired number of requests per unit time reach the system; and a communication control unit that disconnects the TCP connection during the standby time that is included in the test scenario which is being executed by the load generation unit. | 02-26-2015 |
20150213090 | ESTIMATION DEVICE, DATABASE OPERATION STATUS ESTIMATION METHOD AND PROGRAM STORAGE MEDIUM - Provided is a technology which can estimate, in advance before integrating a plurality of databases (instances), an operation status of a database after the integration, such as a buffer cache hit rate. An estimation device | 07-30-2015 |
20150234672 | INFORMATION PROCESSING DEVICE THAT GENERATES MACHINE DISPOSITION PLAN, AND METHOD FOR GENERATING MACHINE DISPOSITION PLAN - The present invention provides an information processing device that outputs a machine disposition plan for moving virtual machines while suppressing deterioration in user experience performance in a virtual-machine-type thin client system. The information processing device is provided with: a connection time determination unit that, for each first virtual machine, calculates a time slot coverage rate that is the fraction of a connection time slot covered by a high-load time slot, and determines as a second virtual machine a first virtual machine of which the time slot coverage rate exceeds a minimum coverage rate; and a disposition plan generating unit that, on the basis of time-series data of the amount of resource use of each second virtual machine, calculates the number of physical servers necessary to hold the second virtual machines in each of the high-load time slot and a low-load time slot, and associates the number to the virtual machines, outputting the result. | 08-20-2015 |