Abstract: Methods and techniques are provided for procedurally editing hierarchical subdivision surfaces. A procedure set and a parameter set may be received. The procedure set may include one or more produces for generating detail coefficients. The parameter set may include one or more parameters, such as granularity and sharpness, while further specifying deltas or other jitter in parameter values or locations. A hierarchical subdivision surface description can be generated based on a mesh, the procedure set, and the parameter set.

Abstract: An electronically controlled locking differential includes an electromagnetic coil and a control system adapted to control operation of the differential. The control system has a module adapted to be mounted under a dashboard of a vehicle and a circuit electrically interfacing with the module. The circuit has a latching switch that is electrically connected to first and/or second sources of power and adapted to provide latching power of the differential. A latching component is electrically connected to the latching switch and adapted to provide latching power of the differential. The circuit is disabled when power to the control system is turned off and in “standby” mode when power to the control system is turned on. Upon the latching switch being activated, current flows through the circuit to activate the latching component, and the differential is actuated.

Abstract: An electronically controlled locking differential includes an electromagnetic coil and a wire harness adapted to logically control operation of the differential and having a circuit. The circuit has a latching switch that is electrically connected to a first source of power and adapted to provide latching power of the differential. A double-pole, double-throw control relay is electrically connected to the latching switch and includes a first switch, a second switch, and a coil. The second switch is adapted to “jump” the latching switch. The circuit is disabled when power to the harness is turned off and in “standby” mode when power to the harness is turned on. Upon the latching switch being activated, current flows from a starting point of the circuit through the circuit to activate the relay, the first switch closes to energize the differential, the second switch closes such that the current “jumps” the latching switch, and the differential is actuated.

Abstract: A solenoid valve assembly includes a bobbin supporting a coil and having at least one protrusion on an inner surface, an adjustment member disposed within the bobbin and in contact with the at least one protrusion, a pole piece disposed within the adjustment member, a valve body having a seat, wherein the bobbin is disposed in contact with the seat, a spool slideably disposed within the valve body, and a resilient member disposed in contact with the adjustment member and the spool.

Abstract: An assembly comprises a manifold and a valve. The manifold has a portion defining a bore having a first end and a second end. The valve is at least partially disposed within the manifold and includes a coil configured to generate a magnetic field; a bobbin configured to house the coil; a pole piece located near the bobbin; and a housing. The pole piece includes a first end configured for insertion into the bore of the manifold; a circumferentially extending groove located near the first end of the pole piece; an o-ring disposed in the circumferentially extending groove; and a radially outwardly extending flange located near the circumferentially extending groove that is configured to engage both the portion of the manifold defining the first end of the bore and the bobbin. The housing includes a tab configured to fasten the valve to the manifold.

Abstract: An electronically controlled locking differential includes an electromagnetic coil and a control system adapted to control operation of the differential. The control system has a module adapted to be mounted under a dashboard of a vehicle and a circuit electrically interfacing with the module. The circuit has a latching switch that is electrically connected to first and/or second sources of power and adapted to provide latching power of the differential. A latching component is electrically connected to the latching switch and adapted to provide latching power of the differential. The circuit is disabled when power to the control system is turned off and in “standby” mode when power to the control system is turned on. Upon the latching switch being activated, current flows through the circuit to activate the latching component, and the differential is actuated.

Abstract: An electronically controlled locking differential includes an electromagnetic coil and a wire harness adapted to logically control operation of the differential and having a circuit. The circuit has a latching switch that is electrically connected to a first source of power and adapted to provide latching power of the differential. A double-pole, double-throw control relay is electrically connected to the latching switch and includes a first switch, a second switch, and a coil. The second switch is adapted to “jump” the latching switch. The circuit is disabled when power to the harness is turned off and in “standby” mode when power to the harness is turned on. Upon the latching switch being activated, current flows from a starting point of the circuit through the circuit to activate the relay, the first switch closes to energize the differential, the second switch closes such that the current “jumps” the latching switch, and the differential is actuated.

Abstract: A solenoid valve assembly includes a bobbin supporting a coil and having at least one protrusion on an inner surface, an adjustment member disposed within the bobbin and in contact with the at least one protrusion, a pole piece disposed within the adjustment member, a valve body having a seat, wherein the bobbin is disposed in contact with the seat, a spool slideably disposed within the valve body, and a resilient member disposed in contact with the adjustment member and the spool.

Abstract: A solenoid valve and method has a simplified structure that integrates the fluid metering functions of the spool in the armature, thereby eliminating the need for a separate spool, bearings, and pin in the valve. The armature has a aperture that communicates with at least one port in a valve body. The position of the differential in the armature with respect to the ports in the valve body controls the pressure of fluid exiting the outputs of the valve body. In one embodiment, the same overall valve structure can be modified to form both inversely proportional valves and directly proportional valves. By integrating the fluid metering functions of the spool into a single ported armature, the inventive valve assembly reduces the number of parts in the valve, simplifying construction.