The invention relates to a chassis, suitable for use in electric vehicles, characterized in that it comprises: a substantially planar loading bed, suitable for receiving a load on top of same, which is located between at least two front wheels and at least one rear wheel of an electric vehicle; wherein said loading bed comprises a channel the chassis also comprises a central shaft housed in said channel; wherein the loading bed is connected so as to pivot relative to said central shaft; wherein the loading bed comprises a plurality of battery housings distributed symmetrically; and the chassis comprises a rear traction and steering assembly and a front suspension and inclination assembly. The invention likewise relates to an electric vehicle comprising said chassis.

A battery with a battery management system is capable of charging the battery with recaptured energy from an energy regeneration device. The battery management system charges the battery with the energy regeneration device if the output voltage from the energy regeneration device is larger than the charging voltage of the battery.

A safety status display system for an electric vehicle high-voltage (HV) battery is presented. The system contains a battery management module coupled to the HV battery to acquire status information and configured to disconnect the HV battery in the event of a faulty battery condition or a detected electrical insulation defect. An insulation monitoring module installed between the HV battery and the electric vehicle and configured to detect an electrical insulation defect between the HV battery and the frame portion as well as communicate the detected electrical insulation defect to the battery management module. An e-paper display unit coupled to the battery management module to receive the HV battery status information and configured to render a bistable display of the HV battery status information a detected faulty battery condition or electrical insulation defect.

An electric lawn mower includes: a body (1); a cutting element (2) disposed on the body (1) and a driving assembly (6) driving the cutting element; a battery pack accommodating cavity (51) provided with conductive electrode sheets (53) for insertion of at least two battery packs (7); a shielding mechanism (52) provided in the battery pack accommodating cavity (51) and being movable relative to the conductive electrode sheet (53), where the shielding mechanism (52) has a protection state of shielding the conductive electrode sheet and a working state of releasing shielding of the conductive electrode sheet to expose the conductive electrode sheet; and an elastic member (9) disposed between an inner wall of the battery pack accommodating cavity and the shielding mechanism and configured to apply a restoring force to the shielding mechanism (52), to provide the shielding mechanism with a tendency of moving toward the protection state or maintaining the protection state. The electric lawn mower can avoid an electric shock accident caused by accidental touch of the conductive electrode sheet, and has good safety performance An electric wheeled vehicle, a battery device, and an electric tool are also provided.

Systems and methods may coordinate and execute bidirectional energy transfer events between electrified vehicles and one or more participating electrified recreational vehicles. The proposed systems and methods may be configured to provide charging alert notifications from the electrified vehicle to the one or more electrified recreational vehicles during group off-roading events. The charging alert notifications indicate the need for the one or more electrified recreational vehicles to return to the electrified vehicle for charging during the off-roading event in order to avoid a no start/stranded condition.

This disclosure provides systems, methods and apparatus for detecting foreign objects. In one aspect an apparatus for detecting a presence of an object is provided. The apparatus includes a resonant circuit having a resonant frequency. The resonant circuit includes a sense circuit including an electrically conductive structure. The apparatus further includes a coupling circuit coupled to the sense circuit. The apparatus further includes a detection circuit coupled to the sense circuit via the coupling circuit. The detection circuit is configured to detect the presence of the object in response to detecting a difference between a measured characteristic that depends on a frequency at which the resonant circuit is resonating and a corresponding characteristic that depends on the resonant frequency of the resonant circuit. The coupling circuit is configured to reduce a variation of the resonant frequency by the detection circuit in the absence of the object.

A battery with a battery management system is capable of charging the battery with recaptured energy from an energy regeneration device. The battery management system charges the battery with the energy regeneration device if the output voltage from the energy regeneration device is larger than the charging voltage of the battery.

A pool cleaning robot that may include a drive motor; an impeller; an impeller motor that is configured to rotate the impeller; wherein the impeller, once rotated at a first rotational direction, is configured to induce fluid to flow through the pool cleaning robot; a filter for filtering fluid that flows through the pool cleaning robot; and wherein the filter (a) is detachably coupled to one or more elements of the pool cleaning robot; and (b) is configured to exit the pool cleaning robot from a first side of the pool cleaning robot.

Environmentally friendly electrical vehicles are presented. The electrical vehicles include electrical low speed vehicles (LSVs) that may use sensed location data to obtain one or more operational profiles. The operational profiles may govern the behavior of the LSV in a specific environment, area, or zone to ensure the LSV reduces its impact on the local terrain. The LSV may leverage locally sensed data to form a local context in which the LSV is operating. The LSV's vehicular controller may refine the operational parameters of the operational profile to ensure smooth operation based on local conditions from the local context.

A solar powered cooler assembly includes track drive that is drivable over a support surface. The track drive includes a pair of tracks that is each drivable in a forward direction or a rearward direction. Each of the tracks is drivable independently of one another for steering the track drive and facilitating the track drive to have a zero turning radius. A cooler is mounted to the track drive for transporting the cooler over the support surface. A personal electronic device is in wireless communication with the track drive for remotely controlling the track drive. In this way the personal electronic device facilitates the user to drive the track drive.