摘要:
A system for reducing steering nibble and other vibrations in a power-assisted steering system increases the amount of damping force when a power steering boost system is applying little or no steering force to the steering actuator, and reduces the amount of damping force when the power boost system is applying significant steering force to the steering actuator. A damping member is formed of a polymer material and is urged into contact with the steering actuator by a spring-biased clamping member. A shuttle valve regulates pressure from the hydraulic steering boost system to overcome the spring biasing force whenever hydraulic pressure is applied to the steering actuator. The preload of the spring biasing mechanism is varied by an electronic control unit that receives inputs from a driver-activated switch, and from vehicle condition sensors to allow automatic, adaptive adjustment of the damping to optimize driving comfort and safety.
摘要:
A method, device, and system for carrying a Point of Sale (POS) data service over an IP network are disclosed. A method for carrying a POS data service over an IP network includes receiving, by a home gateway, a number dialed by a user at a POS. When determining that the number dialed at the POS is a POS access code according to configuration information, a call link with a softswitch is set up through Session Initiation Protocol (SIP) signaling interactions and Session Description Protocol (SDP) negotiation is performed with the softswitch. A DSP inside the home gateway is switched from a normal voice mode to a POS data service mode. POS negotiation is performed with a Network Access Server (NAS) connected to a banking center and data services exchanged between the POS and the banking center are transferred after successful negotiation.
摘要:
A method, device, and system for carrying a Point of Sale (POS) data service over an IP network are disclosed. A method for carrying a POS data service over an IP network includes receiving, by a home gateway, a number dialed by a user at a POS. When determining that the number dialed at the POS is a POS access code according to configuration information, a call link with a softswitch is set up through Session Initiation Protocol (SIP) signaling interactions and Session Description Protocol (SDP) negotiation is performed with the softswitch. A DSP inside the home gateway is switched from a normal voice mode to a POS data service mode. POS negotiation is performed with a Network Access Server (NAS) connected to a banking center and data services exchanged between the POS and the banking center are transferred after successful negotiation.
摘要:
A damper (40) for damping tactile vibration (FIG. 4) caused by pressure changes induced in hydraulic fluid by an operational characteristic of a hydraulic-operated brake (22; 24) when the brake is braking a rotating object (14; 16). A piston (54) is displaceable within a housing bore (52) and divides the bore into a first chamber (56) confronting one axial face of the piston and a second chamber (58) confronting an opposite axial face of the piston. A port (59) communicates hydraulic fluid to the first chamber such that increasing hydraulic fluid pressure is effective to displace the piston toward the second chamber. A spring (60) that is operated by displacement of the piston within the bore resists piston displacement toward the second chamber as hydraulic fluid pressure increases and aids piston displacement toward the first chamber as hydraulic fluid pressure decreases. The invention is useful in hydraulic-operated motor vehicle brakes.