Abstract: In one aspect, an electric vehicle comprises a plurality of battery modules, each of the battery modules having a respective coolant inlet, a coolant source, and a coolant inlet manifold configured to supply coolant from the coolant source to each of the plurality of coolant inlets in parallel. The manifold includes a coolant supply conduit, a plurality of branch conduits branching from the coolant supply conduit, and a plurality of flow restrictors. Each of the branch conduits is fluidically coupled to the coolant inlet of an associated respective one of the battery modules. Each of the flow restrictors restricts coolant flow to a respective subset of the branch conduits. In another aspect, the manifold includes a primary conduit, a plurality of secondary conduits branching from the primary conduit, and for each of the secondary conduits, a plurality of tertiary conduits branching from the secondary conduit.

Abstract: One example provides a thermal management system for an electric vehicle including a pump to pump a thermal transfer fluid through a number of circulation loops, an electric heater to heat the thermal transfer fluid, a heat exchanger to expel heat from the thermal transfer fluid, a number of valves, and a number of fluid pathways fluidically interconnecting the pump, heater, heat exchanger and valves. The valves being controllable to a number of different positions to form the number of circulation loops, the number of circulation loops including a battery heating circulation loop extending through the heater for heating a battery pack of the vehicle, a secondary components cooling circulation loop extending through the heat exchanger to cool secondary components of the vehicle, including a motor and a motor controller, and a battery cooling circulation loop extending through the heat exchanger to cool the battery pack.

Abstract: A battery enclosure for a personal watercraft is provided. Different configurations of the battery enclosure are disclosed, as well as different arrangements of the battery enclosure within the personal watercraft and with respect to other features of the personal watercraft. According to one embodiment, a personal watercraft includes a deck and a hull defining an interior volume. An electric motor is housed within the interior volume, the electric motor being operable to rotate a drive shaft. A battery pack having a battery enclosure housing one or more batteries is also positioned within the interior volume. A portion of at least one battery of the one or more batteries is positioned vertically above the drive shaft.

Abstract: A battery cooling panel and battery module are disclosed. In one example, the battery cooling panel includes a first outer panel defined as a first cooling fin with a first major surface configured to contact a battery cell. A second outer panel is secured to the first outer panel at an outer edge. A panel insert is positioned between the first outer panel and the second outer panel, the panel insert having a major surface with coolant flow channels. The battery module includes one or more battery cells in contact with the battery cooling panel, and is suitable for use as part of an electric vehicle system.

Abstract: A battery enclosure for a personal watercraft is provided. Different configurations of the battery enclosure are disclosed, as well as different arrangements of the battery enclosure within the personal watercraft and with respect to other features of the personal watercraft. According to one embodiment, a personal watercraft includes a deck and a hull defining an interior volume. An electric motor is housed within the interior volume, the electric motor being operable to rotate a drive shaft. A battery pack having a battery enclosure housing one or more batteries is also positioned within the interior volume. A portion of at least one battery of the one or more batteries is positioned vertically above the drive shaft.

Abstract: One example provides a chassis for an electric snowmobile including a battery pack. The battery pack includes a battery pack housing defining an enclosure for housing a number of battery modules for powering an electric motor of the electric snowmobile, the battery pack housing having a length extending in a longitudinal direction of the snowmobile, the battery pack housing including a bottom surface. A pair of opposing side panels extends downwardly from and along at least a portion of the length of the battery pack housing, the opposing panels and at least portions of the bottom surface of the battery pack housing together forming a rear structure extending in the longitudinal direction of the electric snowmobile.

Abstract: A battery enclosure for a personal watercraft is provided. Different configurations of the battery enclosure are disclosed, as well as different arrangements of the battery enclosure within the personal watercraft and with respect to other features of the personal watercraft. According to one embodiment, a personal watercraft includes a deck and a hull defining an interior volume. An electric motor is housed within the interior volume, the electric motor being operable to rotate a drive shaft. A battery pack having a battery enclosure housing one or more batteries is also positioned within the interior volume. A portion of at least one battery of the one or more batteries is positioned vertically above the drive shaft.

Abstract: Systems and methods for charging a battery of an electric vehicle are provided. One method includes heating a battery of the electric vehicle using a battery charger of the electric vehicle. The method includes using the battery charger to generate heat without charging the battery with the battery charger, and transferring the heat generated using the battery charger to the battery to heat the battery. Once a temperature of the battery is sufficiently high to accept a charge, the battery charger may be used to charge the battery.

Abstract: One example provides a thermal management system for an electric vehicle including a pump to pump a thermal transfer fluid through a number of circulation loops, an electric heater to heat the thermal transfer fluid, a heat exchanger to expel heat from the thermal transfer fluid, a number of valves, and a number of fluid pathways fluidically interconnecting the pump, heater, heat exchanger and valves. The valves being controllable to a number of different positions to form the number of circulation loops, the number of circulation loops including a battery heating circulation loop extending through the heater for heating a battery pack of the vehicle, a secondary components cooling circulation loop extending through the heat exchanger to cool secondary components of the vehicle, including a motor and a motor controller, and a battery cooling circulation loop extending through the heat exchanger to cool the battery pack.

Abstract: A battery enclosure for a personal watercraft is provided. Different configurations of the battery enclosure are disclosed, as well as different arrangements of the battery enclosure within the personal watercraft and with respect to other features of the personal watercraft. According to one embodiment, a personal watercraft includes a deck and a hull defining an interior volume. An electric motor is housed within the interior volume, the electric motor being operable to rotate a drive shaft. A battery pack having a battery enclosure housing one or more batteries is also positioned within the interior volume. A portion of at least one battery of the one or more batteries is positioned vertically above the drive shaft.

Abstract: One example provides a thermal management system for an electric vehicle including a pump to pump a thermal transfer fluid through a number of circulation loops, an electric heater to heat the thermal transfer fluid, a heat exchanger to expel heat from the thermal transfer fluid, a number of valves, and a number of fluid pathways fluidically interconnecting the pump, heater, heat exchanger and valves. The valves being controllable to a number of different positions to form the number of circulation loops, the number of circulation loops including a battery heating circulation loop extending through the heater for heating a battery pack of the vehicle, a secondary components cooling circulation loop extending through the heat exchanger to cool secondary components of the vehicle, including a motor and a motor controller, and a battery cooling circulation loop extending through the heat exchanger to cool the battery pack.

Abstract: A battery enclosure for a personal watercraft is provided. Different configurations of the battery enclosure are disclosed, as well as different arrangements of the battery enclosure within the personal watercraft and with respect to other features of the personal watercraft. According to one embodiment, a personal watercraft includes a deck and a hull defining an interior volume. An electric motor is housed within the interior volume, the electric motor being operable to rotate a drive shaft. A battery pack having a battery enclosure housing one or more batteries is also positioned within the interior volume. A portion of at least one battery of the one or more batteries is positioned vertically above the drive shaft.

Abstract: A distributed battery management system for a multi-module traction battery pack of an electric vehicle is provided. The battery management system comprises an analog-to-digital converter (ADC) integrated into a battery module of the traction battery pack of the electric vehicle, and a master controller external to the battery module and in digital data communication with the ADC. The ADC converts an analog signal indicative of a sensed voltage associated with one or more cells of the battery module into a digital signal indicative of the sensed voltage. The master controller performs a function associated with the traction battery pack of the electric vehicle based on the sensed voltage.

Abstract: One example provides a thermal management system for an electric vehicle including a pump to pump a thermal transfer fluid through a number of circulation loops, an electric heater to heat the thermal transfer fluid, a heat exchanger to expel heat from the thermal transfer fluid, a number of valves, and a number of fluid pathways fluidically interconnecting the pump, heater, heat exchanger and valves. The valves being controllable to a number of different positions to form the number of circulation loops, the number of circulation loops including a battery heating circulation loop extending through the heater for heating a battery pack of the vehicle, a secondary components cooling circulation loop extending through the heat exchanger to cool secondary components of the vehicle, including a motor and a motor controller, and a battery cooling circulation loop extending through the heat exchanger to cool the battery pack.

Abstract: A battery cooling panel and battery module are disclosed. In one example, the battery cooling panel includes a first outer panel defined as a first cooling fin with a first major surface configured to contact a battery cell. A second outer panel is secured to the first outer panel at an outer edge. A panel insert is positioned between the first outer panel and the second outer panel, the panel insert having a major surface with coolant flow channels. The battery module includes one or more battery cells in contact with the battery cooling panel, and is suitable for use as part of an electric vehicle system.