Abstract: A hydraulic mount control system for a vehicle including at least one hydraulic mount, each mount including a hollow body defining a fluid-filled chamber. A pressure sensor is positioned to sense the fluid pressure in the chamber and generate a pressure signal. A control unit is electrically connected to the pressure sensor. The control unit is adapted to generate an electric control signal in response to the pressure signal from the pressure sensor and a control device is responsive to the electric control signal for controlling the hydraulic mount.

Abstract: A hydraulic engine mount includes an orifice track formed in a partition between an elastomer body and a base member of the mount, the partition being formed by two separable orifice plates. An annular fluid filled tuning chamber is disposed adjacent the orifice track and separated therefrom by a flexible membrane. An actuator is in communication with the tuning chamber for forcing pressure fluid into or out of the chamber to selectively deflect or distend the membrane to modify the cross sectional area of the orifice track and the vibration damping characteristics of the mount.

Abstract: A hydraulic engine mount includes an orifice track formed in a partition between an elastomer body and a base member of the mount, the partition being formed by two separable orifice plates. An annular fluid filled tuning chamber is disposed adjacent the orifice track and separated therefrom by a flexible membrane. An actuator is in communication with the tuning chamber for forcing pressure fluid into or out of the chamber to selectively deflect or distend the membrane to modify the cross sectional area of the orifice track and the vibration damping characteristics of the mount.

Abstract: A hydraulic mount for an automotive vehicle or machine includes opposed mounting members secured to an elastomeric body and a base, respectively. An orifice plate assembly is interposed the body and the base to define a pumping chamber and a reservoir for fluid to flow therebetween through an orifice track of the orifice plate assembly. An electroactive polymer decoupler member is secured in a cavity formed between two orifice plates of the orifice plate assembly. The decoupler member is operably connected to a controller for imposing an electric field on the decoupler member to change its shape and thereby selectively vary the dynamic stiffness of the mount.

Abstract: A hydraulic engine mount includes opposed mounting members secured to an elastomeric body and a base, respectively, and an orifice plate assembly interposed the body and the base to define a pumping chamber and a reservoir or opposed pumping chambers for fluid to flow therebetween through an orifice track formed by the orifice plate assembly. One or two elastomeric decoupler discs may be secured in recesses between two orifice plates of the orifice plate assembly and form spaces which are operable to be in communication with a vacuum source to impose vacuum pressure on the decouplers at selected frequencies as controlled by solenoid operated valves and a controller. The mount may be operated at a substantially reduced dynamic stiffness lower than the static stiffness of the mount to provide improved low amplitude vibration isolation, in particular.

Abstract: A hydraulic mount for an automotive vehicle or machine includes opposed mounting members secured to an elastomeric body and a base, respectively. An orifice plate assembly is interposed the body and the base to define a pumping chamber and a reservoir for fluid to flow therebetween through an orifice track of the orifice plate assembly. An electroactive polymer decoupler member is secured in a cavity formed between two orifice plates of the orifice plate assembly. The decoupler member is operably connected to a controller for imposing an electric field on the decoupler member to change its shape and thereby selectively vary the dynamic stiffness of the mount.

Abstract: A hydraulic mount useful for automotive vehicle powertrain applications includes an elastomeric body, a base, a flexible diaphragm and a partition assembled to provide a pumping chamber and a reservoir. An actuator is mounted for moving a closure member between positions to allow flow of fluid between the pumping chamber and the reservoir and to restrict flow of fluid between the pumping chamber and the reservoir. The partition comprises an orifice plate assembly including a valve housing and an annular recess formed in one of two orifice plates for receiving a decoupler. The orifice plates include openings therein for communicating fluid between the decoupler and the pumping chamber and between the decoupler and the reservoir, respectively.

Abstract: A hydraulic engine mount includes opposed mounting members secured to an elastomeric body and a base, respectively, and an orifice plate assembly interposed the body and the base to define a pumping chamber and a reservoir or opposed pumping chambers for fluid to flow therebetween through an orifice track formed by the orifice plate assembly. One or two elastomeric decoupler discs may be secured in recesses between two orifice plates of the orifice plate assembly and form spaces which are operable to be in communication with a vacuum source to impose vacuum pressure on the decouplers at selected frequencies as controlled by solenoid operated valves and a controller. The mount may be operated at a substantially reduced dynamic stiffness lower than the static stiffness of the mount to provide improved low amplitude vibration isolation, in particular.

Abstract: A hydraulic mount assembly includes a body with a main chamber formed therein. A magnetorheological fluid retaining member is positioned in the main chamber forming a magnetorheological chamber adjacent the main chamber. An electrical coil is positioned adjacent the magnetorheological chamber and a plate member is operably connected to the magnetorheological fluid retaining member. Energization and de-energization of the coil controls the ability of the mount to resist movement by varying the apparent viscosity of the fluid within the magnetorheological chamber.