Abstract: A powertrain torque roll restrictor includes a first bracket having an elongated body defining a first bracket opening at a distal end and a central axis, a second bracket coaxial with and adjacent to the first bracket, and a third bracket coaxial with and adjacent to the second bracket opposite from the first bracket, with the third bracket defining a third bracket opening cooperable with the first bracket opening. The second bracket defines a second bracket opening receiving the elongated body such that the second bracket is positioned about the elongated body. The powertrain torque roll restrictor further includes a first rubber element positioned between the first bracket and the second bracket, and a second rubber element positioned between the second bracket and the third bracket, with the brackets being configured to hold the respective rubber element in compression.

Abstract: A powertrain torque roll restrictor includes a first bracket having an elongated body defining a first bracket opening at a distal end and a central axis, a second bracket coaxial with and adjacent to the first bracket, and a third bracket coaxial with and adjacent to the second bracket opposite from the first bracket, with the third bracket defining a third bracket opening cooperable with the first bracket opening. The second bracket defines a second bracket opening receiving the elongated body such that the second bracket is positioned about the elongated body. The powertrain torque roll restrictor further includes a first rubber element positioned between the first bracket and the second bracket, and a second rubber element positioned between the second bracket and the third bracket, with the brackets being configured to hold the respective rubber element in compression.

Abstract: Methods and systems are provided for reducing NVH resultant from collisions between internal components of a hydraulic engine mount. In one example, a hydraulic engine mount may include a de-coupler with a number cavities encased therein and extending along a common circumference of the de-coupler.

Abstract: A system for securing a powertrain component to a body structure of a vehicle may include first and second mounts each having a base and a first elastomeric barrier secured to and extending from the base defining an air filled chamber, and a connector coupling the air filled chambers, the connector sized to provide an associated air volume that reduces stiffness of the first elastomeric barrier at an excitation frequency corresponding to a target engine speed. The air filled chambers may be hermetically sealed and pressurized above atmospheric pressure. The system may include a fluid-filled switchable mount having a decoupler air pocket selectively coupled to a vacuum source or atmosphere with an expander integrated with the mount or as a separate component coupled between the decoupler air pocket and the vacuum source. The expander may be implemented as a Helmholtz resonator or may include an in-line expansion chamber.

Abstract: Methods and systems are provided for manufacturing a hydraulic engine mount. During assembly, one or more gel caps may be inserted into a chamber of the engine mount, the chamber is then filled with a fluid and sealed to allow the gel caps to dissolve. Upon dissolving, the gel caps may release air bubbles to reduce pressure differentials across the engine mount to reduce occurrence of cavitation and NVH issues.

Abstract: A system for securing a powertrain component to a body structure of a vehicle may include first and second mounts each having a base and a first elastomeric barrier secured to and extending from the base defining an air filled chamber, and a connector coupling the air filled chambers, the connector sized to provide an associated air volume that reduces stiffness of the first elastomeric barrier at an excitation frequency corresponding to a target engine speed. The air filled chambers may be hermetically sealed and pressurized above atmospheric pressure. The system may include a fluid-filled switchable mount having a decoupler air pocket selectively coupled to a vacuum source or atmosphere with an expander integrated with the mount or as a separate component coupled between the decoupler air pocket and the vacuum source. The expander may be implemented as a Helmholtz resonator or may include an in-line expansion chamber.

Abstract: A system for securing a powertrain component to a body structure of a vehicle may include first and second mounts each having a base and a first elastomeric barrier secured to and extending from the base defining an air filled chamber, and a connector coupling the air filled chambers, the connector sized to provide an associated air volume that reduces stiffness of the first elastomeric barrier at an excitation frequency corresponding to a target engine speed. The air filled chambers may be hermetically sealed and pressurized above atmospheric pressure. The system may include a fluid-filled switchable mount having a decoupler air pocket selectively coupled to a vacuum source or atmosphere with an expander integrated with the mount or as a separate component coupled between the decoupler air pocket and the vacuum source. The expander may be implemented as a Helmholtz resonator or may include an in-line expansion chamber.

Abstract: Methods and systems are provided for manufacturing a hydraulic engine mount. During assembly, one or more gel caps may be inserted into a chamber of the engine mount, the chamber is then filled with a fluid and sealed to allow the gel caps to dissolve. Upon dissolving, the gel caps may release air bubbles to reduce pressure differentials across the engine mount to reduce occurrence of cavitation and NVH issues.

Abstract: Methods and systems are provided for a dual state hydromount in order to passively introduce air underneath a decoupler such that the stiffness of the air pocket adds to the stiffness of the decoupler, thereby increasing a level of damping available in a vehicle ride mode, the ride mode defined by vehicle speeds greater than a threshold speed. In one example, a dual state hydromount is described wherein a partitioning structure may be alternately coupled to either vacuum or atmosphere, and when coupled to atmosphere an air spring is created under the decoupler via the passive directing of air to the decoupler via a one way check valve. In this way, introduction of an air spring is achieved without additional active control.

Abstract: Methods and systems are provided for a dual state hydromount in order to passively introduce air underneath a decoupler such that the stiffness of the air pocket adds to the stiffness of the decoupler, thereby increasing a level of damping available in a vehicle ride mode, the ride mode defined by vehicle speeds greater than a threshold speed. In one example, a dual state hydromount is described wherein a partitioning structure may be alternately coupled to either vacuum or atmosphere, and when coupled to atmosphere an air spring is created under the decoupler via the passive directing of air to the decoupler via a one way check valve. In this way, introduction of an air spring is achieved without additional active control.

Abstract: Methods and systems are provided for reducing NVH resultant from collisions between internal components of a hydraulic engine mount. In one example, a hydraulic engine mount may include a de-coupler with a number cavities encased therein and extending along a common circumference of the de-coupler.

Abstract: A system for securing a powertrain component to a body structure of a vehicle may include first and second mounts each having a base and a first elastomeric barrier secured to and extending from the base defining an air filled chamber, and a connector coupling the air filled chambers, the connector sized to provide an associated air volume that reduces stiffness of the first elastomeric barrier at an excitation frequency corresponding to a target engine speed. The air filled chambers may be hermetically sealed and pressurized above atmospheric pressure. The system may include a fluid-filled switchable mount having a decoupler air pocket selectively coupled to a vacuum source or atmosphere with an expander integrated with the mount or as a separate component coupled between the decoupler air pocket and the vacuum source. The expander may be implemented as a Helmholtz resonator or may include an in-line expansion chamber.

Abstract: A switchable engine mount is provided. The switchable engine mount includes an end plate including one or more openings in fluidic communication with a hydraulic source and a channel plate coupled to the end plate and including one or more hydraulic flow openings. The switchable engine mount further includes a decoupler including at least one decoupler plate at least partially enclosed by the channel plate and the end plate and a switching plate positioned adjacent to the decoupler and configured to axially actuate the decoupler in response to reception of an input force from an actuator, the input force non-parallel to the axially actuation.

Abstract: Embodiments may provide a hydromount, an inertial track and a method. The hydromount may a curvilinear inertial track fluidically coupled at a first end to a first fluid chamber, and fluidically coupled at a second end to a second fluid chamber. The hydromount may also include a choke disposed within the inertial track at a predetermined location to reduce a width of a flow path within the inertial track at the predetermined location.

Abstract: A switchable engine mount is provided. The switchable engine mount includes an end plate including one or more openings in fluidic communication with a hydraulic source and a channel plate coupled to the end plate and including one or more hydraulic flow openings. The switchable engine mount further includes a decoupler including at least one decoupler plate at least partially enclosed by the channel plate and the end plate and a switching plate positioned adjacent to the decoupler and configured to axially actuate the decoupler in response to reception of an input force from an actuator, the input force non-parallel to the axially actuation.

Abstract: The present invention relates to a method for selectively modifying electrodes of an array of electrodes. The array of electrodes may be used as a sensor or biosensor to determine the presence of and/or identity of each of a plurality of analyte molecules. In accordance with the present invention, electrodes of each of a number N subsets of electrodes of an array of electrodes are contacted with a respective liquid, each of which comprises a respective, different molecule. For each subset of the N subsets of electrodes, at least one of the member electrodes is deprotected to allow molecules of the respective liquid to associate with the deprotected electrode. The steps of contacting subsets of electrodes and deprotecting selected electrodes is repeated until each electrode in the array has been associated with a predetermined molecule.