摘要:
Instead of being made from one continuous piece of material, a coil includes multiple flat coil segments that are stacked together and electrically coupled in series. In many embodiments, the coil segments are U-shaped segments, and the segments are arranged so that each segment is rotated (e.g., by 270 degrees) with respect the segment it follows. The stacked coils may then be fastened together using, for example, bolts through the corners of the coil segments. The combined coil segments form a continuous coil.
摘要:
A method of detecting whether a receiver coil is near a transmit coil in a wireless power transfer system (WPTS), the method involving: applying a pseudo-random signal to the transmit coil; while the pseudo-random signal is being applied to the transmit coil, recording one or more signals produced within the WPTS in response to the applied pseudo-random signal; by using the one or more recorded signals, generating a dynamic system model for some aspect of the WPTS; and using the generated dynamic system model in combination with stored training data to determine whether an object having characteristics distinguishing the object as a receiver coil is near the transmit coil.
摘要:
A battery assembly including: a plurality of prismatic battery cells; first and second fluid manifolds; and a plurality of corrugated flow plates interleaved with the plurality of battery cells, each the flow plates extending from the first manifold to the second manifold and providing an array of flow channels for carrying fluid from the first manifold to the second manifold, wherein each plate of the plurality of corrugated flow plates is an extruded plastic structure comprising first and second fluid impermeable sheets and a plurality of parallel ribs between and connecting the first and second sheets, said plurality of ribs forming the array of flow channels.
摘要:
The present invention relates to a charging station for charging a plurality of vehicles and methods of charging energy storage systems within a plurality of vehicles. A charging station for charging a plurality of vehicles each with a receiver coil located on top of a vehicle, includes: a first and second support structures, an overhead track stretching between the first and second support structures, a movable carriage on the overhead track, the carriage including a transmitter coil located at a position under the carriage for transferring power to the receiver coils of the plurality of vehicles when they are parked under the overhead track and an inductive power transfer module connected to the transmitter coil, and a motorized transport mechanism for moving the carriage along the tracks and positioning the carriage over any selectable one of the plurality of vehicles.
摘要:
An electric generator device includes a magnetic stator assembly, opposed coils, and a rotary-to-linear converter (e.g., cam). The coils are configured to reciprocate relative to the magnetic stator assembly or to linearly translate in a common direction relative to the magnetic stator assembly. The coils are coupled to the cam and, upon rotary or linear motion of the cam, reciprocate or linearly translate relative to the magnetic stator assembly. The reciprocation or linear translation of the coils creates an electric current flowing through the coils, which may then be harvested.
摘要:
A sachet includes a first wing made of a flexible material and having a first perimeter region circumscribing a first central region; a second wing made of the flexible material; a hinge connecting the first and second wings along a common boundary; an adhesive material applied to the perimeter region on the first wing; a first electrically conducting electrode formed on the first wing within the central region of the perimeter region; a second electrically conducting electrode formed on the second wing in a region that is opposed to and in alignment with the first contact area on the first wing; an array of contact pads formed on at least one of the first and second wings; first and second conducting traces electrically connecting first and second groups of one or more contact pads among the array of contact pads to the first and second electrodes, respectively.
摘要:
A method of detecting whether a foreign object is near a transmit coil in a wireless power transfer system (WPTS), the method involving: applying a pseudo-random signal to the transmit coil; while the pseudo-random signal is being applied to the transmit coil, recording one or more signals produced within the WPTS in response to the applied pseudo-random signal; by using the one or more recorded signals, generating a dynamic system model for some aspect of the WPTS; and using the generated dynamic system model in combination with stored training data to determine whether an object having characteristics recognizable from the stored training data as characteristic of the foreign object is near the transmit coil.
摘要:
An energy storage system for use with an external device including: an energy storage cell; a microcontroller; an internal communication bus; an interface including two power terminals and a communications port electrically connected to the internal communication bus; power conversion circuitry for performing a charging operation during which energy is transferred from the power terminals to the energy storage cell and a discharging operation during which energy is transferred from the energy storage cell to the power terminals; and one or more sensors for monitoring one or more parameters of the energy storage cell, wherein it is all packaged to form a single, integrated unit.
摘要:
An apparatus and methods for ultra-fast charging one or more batteries, including, for example, lithium ion batteries. A charging current is determined by optimization of a model based on functions of a set of internal state variables associated with a battery, and a set of model parameters or nonparametric data characterizing the battery. Instantaneous internal state variables are determined, and an optimized charging current is applied to the battery subject to a set of battery-specific constraints. Internal state variables are updated recursively based on behavior of the battery under charge as well as the behavior, stored in a database, or acquired via a network, of cognate batteries.
摘要:
An electric motor including: a first and second linear actuator, each linear actuator including a first and second coil respectively, a rotational shaft, a cam assembly mounted on the rotational shaft for translating linear movement of the two linear actuators to rotational movement of the rotational shaft, a controller programmed to generate during operation a first and second drive signal for first coil and second coil respectively, wherein the first drive signal causes the first linear actuator to generate a first torque on the rotational shaft that varies periodically over a complete rotation of the shaft and the second drive signal causes the second linear actuator to generate a second torque on the rotational shaft that varies periodically over a complete rotation of the shaft, and wherein the sum of the first and second torques produces a total torque that is substantially constant throughout the complete rotation of the shaft.