Abstract: Methods and systems are provided for a winding reconfiguration assembly for an electric machine. The winding reconfiguration assembly includes a multi-position contactor device designed to switch stator windings in the electric machine between a first electric configuration in a first position and a second electric configuration in a second position. The winding reconfiguration assembly further includes an electromagnetic actuator configured switch the multi-position contactor device between the first position and the second position in response to a change in the polarity of a coil in the electromagnetic actuator.

Abstract: Methods and systems are provided for cooling a hydrogen fuel cell assembly. A vehicle system, in one example, includes a hydrogen fuel cell assembly electrically coupled to a traction motor, positioned behind a cab, and including a plurality of hydrogen storage tanks and hydrogen fuel cells. The vehicle system further includes a fuel cell cooling assembly including an inlet manifold in a deflector, where the deflector is fixedly coupled to and positioned vertically above the cab and designed to direct airflow to a fan array that is coupled to a fuel cell assembly heat exchanger, where the fan array is positioned behind inlet manifold and longitudinally offset therefrom.

Abstract: Systems are provided for a cooling system for an electric vehicle. In one example, a system includes a plate arranged between separate circuit boards. The plate directly cools one of the circuit boards and block thermal communication between the circuit boards.

Abstract: An autonomous vehicle for passengers includes four steerable wheels where each steerable wheel is steered by a steering system having a set of two actuators. One actuator of each set of actuators is powered by a first power source while the other actuator of the set of powered by a second power source. Four controllers each control one actuator of each set of actuators and one actuator from another set of actuators.

Abstract: The present disclosure is concerned with a stator for an electric machine comprising a plurality of stacked laminations each including inwardly facing slots defining inwardly facing teeth configured to receive prewound coils thereonto. Each slot including a generally triangular projection configured and sized as to be in proximity of the prewound coils.

Abstract: A system and a method for managing a charging station allow charging a battery of a connected autonomous electric vehicle for carrying passengers in a controlled environment. A controller connected to the charging station determines and modulates a charging rate with which the charging station charges the battery based on a duration between a start of charging the vehicle and a forecasted time of start of duty mode of the vehicle. The duration is determined by the controller based on a forecasted passenger load as a function of time.

Abstract: An electric machine is described herein. The electric machine includes a casing, a stator, a rotor generally coaxial with the stator, an enclosed cooling assembly circulating a first cooling fluid within the casing, and an open cooling assembly through which a second cooling assembly can flow; the open cooling assembly cooling both the stator and the first cooling fluid.

Abstract: An autonomous vehicle for passengers includes four steerable wheels where each steerable wheel is steered by a steering system having a set of two actuators. One actuator of each set of actuators is powered by a first power source while the other actuator of the set of powered by a second power source. Four controllers each control one actuator of each set of actuators and one actuator from another set of actuators.

Abstract: An embodiment of a liquid cooled electric machine is provided with an enclosed stator and includes a cooling assembly so configured as to allow cooling liquid to flow in the coil receiving slots of the enclosed stator to thereby cool the coils positioned therein.

Abstract: External rotor electric machine with SMC blocks interposed between permanent magnets. The machine has an internal stator and an external cylindrical rotor. Permanent magnets and SMC blocks are mounted on the inner surface of the rotor.

Abstract: A system and a method for managing a charging station allow charging a battery of a connected autonomous electric vehicle for carrying passengers in a controlled environment. A controller connected to the charging station determines and modulates a charging rate with which the charging station charges the battery based on a duration between a start of charging the vehicle and a forecasted time of start of duty mode of the vehicle. The duration is determined by the controller based on a forecasted passenger load as a function of time.

Abstract: Described herein is a method to load graphite material with phase change material (PCM) to yield thermal management material. More specifically, graphite flakes are first expanded before being compacted into relatively thin graphite elements. The thin graphite elements are then loaded with PCM. The thermal management matrix may then be formed from the PCM loaded graphite elements to receive cells and form a battery module. The thermal management material help preventing thermal runaway in case of cell failure. Also described herein are methods to electrically insulate the individual cells and the completed battery module. The methods described herein are particularly suited for large volume fabrication of thermal management material and thermal management matrix.

Abstract: The external rotor for an electric machine includes a cylindrically shaped receptacle having a peripheral wall and a magnet-receiving assembly including segments assembled to the inner surface of the peripheral wall so as to define a cylindrically shaped stack. The segments are shaped so as to yield magnet-receiving portions in the ring-shaped stack, and permanent magnets are secured to the magnet-receiving portion of the magnet receiving assembly.

Abstract: External rotor electric machine with SMC blocks interposed between permanent magnets. The machine has an internal stator and an external cylindrical rotor. Permanent magnets and SMC blocks are mounted on the inner surface of the rotor.

Abstract: A cooling device to which an electric circuit may be mounted includes a cooling body and a cover both defining a fluid cooling path. Inner and outer seals are provided between the body and the cover and a leak bypass channels leaking fluid away from the electric circuit is provided between the inner and outer seals.

Abstract: A multi-path liquid cooling arrangement for electric machines includes a heat storing element provided with channels having a generally C-shaped cross-section and cooling tubes so configured and sized as to be insertable in the channels is described herein. The cooling tubes, once inserted in the channels, are deformed to conform thereto, whereby heat stored in the heat storing element is extracted by circulating cooling fluid inside the cooling tubes.

Abstract: The insertion of electrically insulating paper from a continuous roll into slots of a stator created by outwardly projecting teeth is described herein. The insertion of the insulating paper is done by the insertion of prewound coils in the stator slots. The electrically insulating paper is not cut prior to its insertion in the slots, thereby completely covering the outer surface of the stator. The insertion systems and methods described herein are also optionally concerned with the insertion of interphase insulation paper between the different coils inserted in the stator slots and with the insertion of slot closing wedges.

Abstract: Electrically insulating material so foldable as to form a slot liner and an interphase insulator combination so configured as to be inserted in the slots of the stator or the rotor of an electric machine to prevent coils from being in contact with the slot walls and to prevent separate coils inserted in the same slot to be in direct contact with one another is described herein.

Abstract: A liquid cooling arrangement for electric machines uses a continuous cooling tube associated with a heat storing element. The cooling tube has a serpentine configuration and the heat storing element includes longitudinal slots starting from both longitudinal ends of the heat storing element. Accordingly, it is possible to slightly deform the heat storing element to properly position it into the internal stator of an electric machine. An internal biasing assembly may be used to force the external surface of the heat storing element to the internal surface of the stator.

Abstract: A transmission for a Series/Parallel Hybrid Vehicles (SPHV) enabling the vehicle to switch between series and parallel modes while the vehicle is in motion and while both the traction motor and the prime mover are operating at efficient levels is described herein. The traction motor and the prime mover are connected to an intermediate shaft via different ratio gear assemblies. A clutch is provided between the prime mover gear assembly and the intermediate shaft to allow the switch between the series mode and the parallel mode.