1. A method of updating the transmissibility function (Tcl(x)) of a clutch (4) during the final stage of a gear change, in which the clutch (4) is closed to cause the angular speed (m) of the drive shaft (10) to equal the angular speed (1) of the primary shaft (7) of the gear change (5), in which method the actual value of the torque (Tcl) transmitted by the clutch (4) is calculated by subtracting the product of the moment of inertia (Jm) of the engine (2) and the angular acceleration (m) of the drive shaft (10) from the torque (Tm) generated by the engine (2), the actual value of the torque (Tcl) actually transmitted by the clutch (4) being used to update the transmissibility function (Tcl(x)) of the clutch (4)
2. A method as claimed in claim 1, characterised in that in order to calculate the actual value of the torque (Tcl) transmitted by the clutch (4), the clutch (4) is disposed in a predetermined position in order to transmit a constant torque (Tcl).
3. A method as claimed in claim 2, characterised in that in order to calculate the actual value of the torque (Tcl) transmitted by the clutch (4), the clutch (4) is disposed in a predetermined position in order to transmit a constant torque (Tcl)) greater than the torque (Tm) supplied by the engine (2).
4. A method as claimed in claim 1, characterised in that in order to calculate the actual value of the torque (Tcl) transmitted by the clutch (4), the engine (2) is set to supply a constant torque (Tm).
5. A method as claimed in claim 4, characterised in that in order to calculate the actual value of the torque (Tcl) transmitted by the clutch (4), the supply to the engine (2) is discontinued so as not to generate working torque, the torque (Tm) generated by the engine (2) being constant and due solely to internal friction torques of the engine (2).
6. A method as claimed in claim 1, in which the angular acceleration ( m) of the drive shaft (10) is determined from a measurement of the angular speed ( (m) of the drive shaft (10).
7. A method as claimed in claim 1, in which an index of the degradation of the transmissibility function (Tcl(x)) is calculated by comparing the actual value of the torque (Tcl) transmitted by the clutch (4) with an equivalent theoretical value of the torque (Tcl) transmitted by the clutch (4) obtained from the transmissibility function (Tcl(x)).
8. A method as claimed in claim 7, characterised in that an updating index of the transmissibility function is calculated by means of filtering of the degradation index.
9. A method as claimed in claim 7, characterised in that a plurality of degradation indices are calculated during various gear changes and in that an updating index of the transmissibility function is calculated by means of statistical processing of this plurality of degradation indices.
10. A method as claimed in claim 8, characterised in that the transmissibility function (Tcl(x)) is updated using the updating index.
11. A method of calculating the actual value of the torque (Tcl)) transmitted by a clutch (4) during the final stage of a gear change, characterised in that the clutch (4) is closed to cause the angular speed (m) of the drive shaft (10) to equal the angular speed (1) of the primary shaft (7) of the gear change (5), in which method the actual value of the torque (Tcl) transmitted by the clutch (4) is calculated by subtracting the product of the moment of inertia (Jm) of the engine (2) and the angular acceleration (m) of the drive shaft (10) from the torque (Tm) generated by the engine (2).
12. A method as claimed in claim 11, characterised in that in order to calculate the actual value of the torque (Tcl) transmitted by the clutch (4), the clutch (4) is disposed in a predetermined position in order to transmit a constant torque (Tcl).
13. A method as claimed in claim 11, characterised in that in order to calculate the actual value of the torque (Tcl) transmitted by the clutch (4), the engine (2) is set to supply a constant torque (Tm).
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An SIP (Session Initiation protocol)-based user mobility service providing apparatus that is connected to an SIP-based IP multimedia service network in an environment where various communication infrastructures coexist and transmits an SIP message to an SIP terminal and an SIP proxy server through a gateway to provide a mobile user with an SIP service, comprising:
a sensing part that detects an event that the user enters a specific region or goes out of the specific region based on signals from at least one marker, to obtain a position of the user; and
a sensing management module that receives information on the position of the user in the specific region from the sensing part and carries out SIP registration for terminals in the specific region when it is confirmed that the user, enters the specific region and carries out SIP cancellation of SIP registration for terminals in the specific region when it is confirmed that the user goes out of the specific region.
2. The SIP-based user mobility service providing apparatus as claimed in claim 1, wherein the specific terminal has the same capability as that of a terminal selected on the basis of a predetermined terminal priority order depending on a user’s preferences among the several of terminals existing in the specific region.
3. The SIP-based user mobility service providing apparatus as claimed in claim 1, wherein the at least one marker transmits specific information in the signals in response to the user’s position, and the sensing part includes a receiver that receives signals with the specific information from the at least one marker to detect the event that the user enters the specific region or goes out of the specific region and transmits the detected information to the sensing management unit.
4. The SIP-based user mobility service providing apparatus as claimed in claim 1, wherein the sensing management module is mounted in the gateway.
5. The SIP-based user mobility service providing apparatus as claimed in claim 1, wherein the sensing management module is constructed in a separate machine having computing capability.
6. The SIP-based user mobility service providing apparatus as claimed in claim 1, wherein the sensing management module comprises:
an interface unit for communicating with the receiver of the sensing unit, the SIP proxy server, the SIP terminal, and an operator terminal that manages the receiver of the sensing unit and controls the sensing management unit;
an information managing unit that manages the user information and information on the terminals in the specific region; and
an SIP service supporting unit that carries out SIP registration for the each terminals existing in the specific region and notification of the completion of SIP registration such that the user is provided with the SIP service.
7. The SIP-based user mobility service providing apparatus as claimed in claim 6, wherein the operator terminal determines a range of the specific region on the basis of a marker detection allowable limit of the receiver.
8. The SIP-based user mobility service providing apparatus as claimed in claim 6, wherein the operator terminal determines a marker monitoring period to determine whether the user exists in the specific region.
9. The SIP-based user mobility service providing apparatus as claimed in claim 6, wherein the sensing management module further comprises a user authentication unit that determines whether the user in the specific region uses the several terminals existing in the specific region and whether the user subscribes to an SIP service provider.
10. The SIP-based user mobility service providing apparatus as claimed in claim 6, wherein the sensing management module further comprises a management information database for storing SIP registration related information including the user information and the information on the terminals in the specific region.
11. The SIP-based user mobility service providing apparatus as claimed in claim 6, wherein the information managing unit comprises:
a usermarker mapping manager for managing mapping information of an ID of the at least one marker and a URI (uniform resource identifier) of the user;
a terminal information manager for managing the information on the terminals existing in the specific region; and
an active user manager for managing active information of the user in the specific region.
12. The SIP-based user mobility service providing apparatus as claimed in claim 6, wherein the SIP service supporting unit comprises:
an SIP user registrationcancellation proxy unit that generates an SIP registration message for each of the several terminals in the specific region according to the SIP registration related information and transmits the SIP registration message to the SIP proxy server to perform SIP registration; and
an SIP user registrationcancellation notifying unit that notifies the SIP terminal of the completion of SIP user registration when SIP registration has been completed through the SIP user registrationcancellation proxy unit.
13. The SIP-based user mobility service providing apparatus as claimed in claim 6, wherein the interface unit comprises:
a sensing receiver interface that provides an interface for transmitting information on the result of the detection of the event that the user enters the specific region or goes out of the region from the sensing part to the sensing management module;
an SIP proxy server interface that provides an interface for transmitting the SIP registration message for each of the terminals to the SIP proxy server;
an SIP terminal interface that provides an interface for transmitting the SIP registration completion notification to the SIP terminal; and
an operator interface that provides an interface for operating and controlling the sensing management module by the operator terminal.
14. An SIP-based user mobility service providing method using an SIP (session initiation protocol)-based user mobility providing apparatus that is connected to an SIP-based IP multimedia service network in an environment where various communication infrastructures coexist, and transmits an SIP message to an SIP terminal and an SIP proxy server through a gateway to provide a mobile user with an SIP service, comprising:
a) converting each terminals existing in a specific region to an available state when a user who is authorized to use the SIP service enters the specific region; and
b) receiving a call using a specific terminal having the same capability as that of a terminal previously set on the basis of a user’s preferences among the several terminals in the available state,
wherein converting each terminal further comprises:
detecting an event that the user enters the specific region based on signals from at least one marker;
generating an SIP registration message for terminals in the specific region and transmitting the SIP registration message to the SIP proxy server to carry out SIP registration when it is confirmed that the user enters the specific region; and
generating an SIP deregistration message for the terminals in the specific region and transmitting the SIP deregistration message to the SIP proxy server, to carry out cancellation of SIP registration when it is confirmed that the user goes out of the specific region.
15. The SIP-based user mobility service providing method as claimed in claim 14, further comprising performing user authentication for determining whether the user is authorized to use the terminals existing in the specific region and whether the user is authorized to use the SIP service when the user enters the specific region before the converting the each terminals existing in the specific region to the available state when the user who is authorized to use the SIP service enters the specific region.
16. The SIP-based user mobility service providing method as claimed in claim 15, wherein step a) further comprises periodically confirming whether the user exists in the specific region after the notifying the SIP terminal of the completion of SIP registration when SIP registration has been completed.
17. An SIP (Session Initiation Protocol)-based user mobility service providing apparatus that is connected to a wireless network including IP Multimedia Subsystem (IMS), comprising:
a sensing part to detect an event that a marker enters or departs a specific region based on signals from the marker, to obtain a position of a user carrying the marker; and
a sensing management module to receive information on the position of the user in the specific region from the sensing part, and to carry out SIP registration for terminals in the specific region when it is confirmed that the user enters the specific region, and to carry out SIP cancellation of SIP registration for terminals in the specific region when it is confirmed that the user departs the specific region.
18. A method for providing an SIP (Session Initiation Protocol)-based user mobility service using an SIP-based user mobility providing apparatus that is connected to a wireless network including IP Multimedia Subsystem (IMS), comprising:
converting each terminal in a specific region to an available state when a user who is authorized to use the SIP service enters the specific region; and
receiving a call using a specific terminal having the same capability as that of a terminal previously set on the basis of a user’s preferences among the several terminals in the available state,
wherein converting each terminal further comprises:
detecting an event that the user enters the specific region based on signals from at least one marker;
generating an SIP registration message for terminals in the specific region and transmitting the SIP registration message to a SIP proxy server to carry out SIP registration when it is confirmed that the user enters the specific region; and
generating an SIP deregistration message for the terminals in the specific region and transmitting the SIP deregistration message to the SIP proxy server, to carry out cancellation of SIP registration when it is confirmed that the user departs the specific region.
19. An SIP (Session Initiation Protocol)-based user mobility service providing apparatus that is connected to a wireless network including IP Multimedia Subsystem (IMS), comprising:
a sensing part to determine if a mobile user enters a sensing region based on a recognition of a first marker corresponding to the mobile user; and
a sensing management module to receive identification information corresponding to the first marker from the sensing part, and to carry out SIP registration for a first SIP terminal in the sensing region if the mobile user enters the sensing region,
wherein the sensing part determines if the mobile user departs the sensing region, and the sensing management module carries out SIP cancellation of SIP registration for the first SIP terminal in the sensing region if the mobile user departs the sensing region.
20. A method for providing an SIP (Session Initiation Protocol)-based user mobility service using an SIP-based user mobility providing apparatus that is connected to a wireless network including IP Multimedia Subsystem (IMS), the method comprising:
converting a first SIP terminal in a sensing region to an available state if a mobile user who is authorized to use the SIP service enters the sensing region; and
receiving a call using the first SIP terminal having the same capability as a previously set second SIP terminal on the basis of a preference of the mobile user among several SIP terminals in an available state in the sensing region; and
generating an SIP deregistration message for the first SIP terminal, and transmitting the SIP deregistration message to an SIP proxy server to cancel SIP registration if the mobile user departs the sensing region,
wherein converting the first SIP terminal further comprises:
determining that the mobile user enters the sensing region based on a recognition of a first marker corresponding to the mobile user; and
generating an SIP registration message for the first SIP terminal in the sensing region, and transmitting the SIP registration message to the SIP proxy server to carry out SIP registration for the first SIP terminal if the mobile user enters the sensing region.
21. A method for providing an SIP (session initiation protocol)-based user mobility service using a wireless network including IP Multimedia Subsystem (IMS), the method comprising:
converting a first SIP terminal in a sensing region to an available state if a mobile user who is authorized to use the SIP service enters the sensing region;
receiving a call using the first SIP terminal having the same capability as a previously set second SIP terminal on the basis of a preference of the mobile user among several SIP terminals in an available state in the sensing region; and
determining whether the mobile user is authorized to use the first SIP terminal in the sensing region and whether the mobile user is authorized to use the SIP service if the mobile user enters the specific region before converting the first SIP terminal in the sensing region to the available state,
wherein converting the first SIP terminal further comprises:
determining that the mobile user enters the sensing region based on a recognition of a first marker corresponding to the mobile user; and
generating an SIP registration message for the first SIP terminal in the sensing region, and transmitting the SIP registration message to an SIP proxy server to carry out SIP registration for the first SIP terminal if the mobile user enters the sensing region.