Techniques involve utilizing a ducting system for an electric vehicle. The ducting system includes a motor housing constructed and arranged to house at least a portion of an electric propulsion motor of the electric vehicle. The ducting system further includes a storage pack housing coupled with the motor housing, the storage pack housing being constructed and arranged to house at least a portion of an electrical energy storage pack that supplies electric power to the electric propulsion motor. The ducting system further includes a fluid control assembly constructed and arranged to control fluid flow between the motor housing and the storage pack housing.

A battery pack (100) and a vehicle including the battery pack (100) are provided. The battery pack (100) includes a housing, a battery core group (20), and a distribution box (30) detachably mounted on the housing. The housing is provided with a receiving space (101). Both the battery core group (20) and the distribution box (30) are received in the receiving space (101). The battery core group (20) is electrically connected to the distribution box (30). The housing includes a bottom plate (11) and an access cover (12). The bottom plate (11) is provided with an access port (110). The access port (110) communicates with the receiving space (101). The distribution box (30) faces the access port (110). The access cover (12) is detachably mounted on the bottom plate (11) and covers the access port (110).

Systems and methods are disclosed herein for a charging system. The charging system may be implemented within an independent charging station or within an autonomous vehicle. Boolean charging can be used to obtain the desired charge or discharge voltage for charging an autonomous vehicle at a charging station. By combining a subset of a sequence of batteries arrays that differ in voltage by powers of two in series, where each battery array may include multiple batteries or battery cells, a voltage may be obtained which is equal to the sum of the voltages across each battery array. This voltage may be used in turn to charge additional batteries or battery arrays. The process may be repeated until the desired amount of battery arrays has been charged and the desired voltage has been achieved.

A battery pack houses battery stacks vertically in a plurality of stages. The battery pack includes a lower casing, a holder formed of leg portions attached to the lower casing in front and back of the battery stacks in the lower stage and a frame attached on upper portions of the leg portions, and a plate member that connects the lower casing and the frame of the holder. The battery stacks in an upper stage are arranged on top of the frame along the length of the vehicle.

A stack frame is mounted with a battery stack, and is installed in a vehicle. The stack frame includes: a plurality of frame members arranged in a right-left direction of the vehicle; and a cross member extending in the right-left direction of the vehicle and joined to all end surfaces of the plurality of frame members. An end frame member located at least at one end in the right-left direction of the plurality of frame members, includes: an end surface covered region having an end surface covered with the cross member; and an end surface exposed region having an exposed end surface, and the end surface covered region is provided with more mounting holes used for mounting the battery stack than the end surface exposed region.

A solar powered electric motorized scooter is provided for use with a battery, the solar powered electric motorized scooter comprising a base, a flexible foot pad which has a margin, the margin attached to the base, a plurality of flexible solar cells mounted on the base, an electric motor which is in electrical communication with the flexible solar cells, a front wheel, a back wheel, the wheels rotatably disposed on the base and in motive communication with the motor, a steering tube rotatably mounted to the base and attached to a bracket that retains the axle of the front wheel and a handlebar, which terminates the steering tube, wherein the flexible foot pad is configured to flatten under the pressure of a rider and to curve upward when not under pressure of the rider.

An embodiment battery pack includes battery modules each including a plurality of battery cells stacked and connected in parallel, the battery modules being arranged adjacent to each other, a housing fixedly surrounding the battery modules, and an auxiliary rigid plate disposed between the battery modules so as to face side surfaces of the battery modules, the auxiliary rigid plate being coupled to the housing and defining a unitary rigid body together with the housing.

A variable body vehicle may include a drive module having drive the vehicle wheels provided at a lower portion of the drive module; a body module coupled to an external side of the drive module and forming an internal space of the vehicle; and a battery-mounting portion formed in the drive module or the body module to mount a battery therein, providing electric power to the battery when the battery is mounted, and determining a driving mode of the vehicle by allowing the battery to be selectively mounted in the drive module, wherein a body of the vehicle is variable by a combination between the drive module and the body module according to a purpose of use.

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.

An energy store includes a plurality of electrical energy storage modules which are arranged in neighboring rows and a plurality of separate cooling elements each of which is in contact with at least one surface of an associated one of the plurality of electrical energy storage modules. A coolant or a refrigerant is flowable through the plurality of separate cooling elements where the plurality of separate cooling elements have a respective intake and a discharge. A coolant channel is disposed between the neighboring rows. The respective intake and the discharge of the plurality of separate cooling elements are each connected to the coolant channel via a respective coolant line and the coolant channel has a feed and a return which are adjacent to a hollow space that is disposed between the feed and the return.