Abstract: A baby stroller for transporting an infant at speeds faster than normal walking is disclosed. This baby stroller can be folded to make it easier to stow and transport. The folding mechanism, a unique feature of the design is directed toward compactness, ease of use, reliability, and reduction in manufacturing costs.

Abstract: A baby stroller includes a frame having front and rear wheel supports, a seat rod, a push rod and a support rod. The front and rear wheel supports form a first rotating joint. The push rod includes upper and lower push rods, the lower push rod is connected to the first rotating joint. The lower push rod and the upper push rod form a second rotating joint. The support rod is rotatably connected with the upper push rod. The support rod is rotatably connected with the rear wheel support. The seat rod is rotatably connected with the front wheel support. The seat rod is rotatably connected with the support rod. Rotating the upper push rod around the second rotating joint drives the lower push rod, the support rod, the front wheel support, the rear wheel support and the seat rod to fold the stroller.

Abstract: An adjustment lever deceleration assembly for a steering column includes an adjustment lever moveable between a locked position and an unlocked position. Also included is a clamp bolt operatively coupled to the adjustment lever. Further included is an adjustment lever decelerator operatively coupled to the clamp bolt, the adjustment lever having a base portion and at least one lobe extending from the base portion, the at least one lobe connected to the base portion by a hinge portion. Yet further included is a stationary component engageable with the at least one lobe upon rotation of the clamp bolt toward the unlocked position of the adjustment lever to decelerate the adjustment lever.

Abstract: A steering column for a motor vehicle may include a steering spindle and a cover. The steering spindle may include an input shaft configured to rotate with a steering wheel, an output shaft rotatably mounted in a steering gear housing, and a swivel joint arranged between the shaft and the output shaft. A portion of the steering spindle within a footwell of the vehicle may be covered by the cover. The cover may include a fastening device and an opening on a side facing away from the footwell. The opening of the cover may extend across a portion of the output shaft, the swivel joint, and a portion of the input shaft. The cover may be fastened to a portion of the steering gear housing by the fastening device so the cover does not rotate with the steering spindle.

Abstract: A steering system for a steerable vehicle includes at least two steerable wheels, to each of which an electrically operable steering actuator to enable the steering actuator to adjust the steering angle of the particular steerable wheel by application of a steering torque. The at least two steering actuators can be mechanically coupled to each other so that, in the event of a failure or a malfunction of the one steering actuator, the steering torque provided by the other steering actuator can be transferred to the one steering actuator, to enable the steering angle of the steerable wheel assigned to the failed steering actuator to still be changed via the other steering actuator. The at least two steering actuators can be mechanically coupled to each other via a bendable shaft or via a universal joint shaft which includes at least two rigid shafts hingedly connected via a universal joint.

Abstract: A steering control apparatus includes a steering angle feedback processing unit and an operation signal generation processing unit that operate a reaction force actuator to adjust a steering angle to a target steering angle that is a target value for the steering angle based on feedback control, an ideal-axial-force calculation unit that calculates an ideal axial force, a road-surface-axial-force calculation unit that calculates a road surface axial force, an axial-force allocation calculation unit that calculates a base reaction force in which the ideal axial force and the road surface axial force are allocated in a predetermined ratio, and a target steering angle calculation processing unit that sets a target steering angle based on the base reaction force. The steering angle feedback processing unit feeds back the target steering angle in which road surface information is incorporated through the road surface axial force, so that the steering angle is controlled.

Abstract: A steering system includes a rack housing in which a rack shaft is housed, rack ends fitted to respective end portions of the rack shaft and coupled to respective steered wheels, and shock-absorbing members provided between the rack housing and the respective rack ends. When the rack shaft moves in a direction in which an end face of the rack end approaches a restricting surface of the rack housing and thus the rack shaft reaches a position after the shock-absorbing member is compressed by a compression amount, a control unit creates a normal input end through electronic stopper control of reducing an assisting force to be generated by a motor. This restricts movement of the rack shaft in a direction in which the end face approaches the restricting surface.

Abstract: An electric power steering apparatus that calculates a current command value based on at least a steering torque, performs a PWM-control of a brushless motor by an inverter based on the current command value, performs a current control by detecting a rotational angle of the brushless motor, and performs an assist-control of a steering system. The apparatus includes three rotational angle detecting systems to detect three rotational angles of the brushless motor; and an angle diagnosing section that compares absolute values of differences on respective angles outputted from the three rotational angle detecting systems with a threshold, and performs a process by diagnosing whether the rotational angle detecting systems are normal or abnormal; wherein the assist control is continuously performed by using output angles outputted from systems diagnosed as being normal.

Abstract: A torque compensation apparatus for an electric power steering system may include: a temperature sensor configured to sense the initial temperature around the electric power steering system when a vehicle is started; a motor position sensor configured to sense a motor angle of the electric power steering system; a timer configured to detect an operation time of the started vehicle; and a controller configured to calculate a compensation gain when the initial temperature corresponds to a preset low-temperature state, the compensation gain reflects the increasing ambient temperature, and is based on the motor angles accumulated during steering and the accumulative operation time detected through the timer after the start of the vehicle; and the controller outputs the compensation gain to compensate for a motor output torque of the electric power steering system.

Abstract: Methods and systems are provided for controlling a component of a vehicle. In one embodiment, a method includes: receiving sensor data sensed from the vehicle; processing the sensor data to determine an ideal state of the vehicle; processing the sensor data and the ideal state of the vehicle to determine a feasible state of the vehicle; and selectively controlling at least one component associated with at least one of an active safety system and a chassis system of the vehicle based on the at least one feasible state.

Abstract: Methods and systems are provided for controlling a component of a vehicle. In one embodiment, a method includes: receiving, by a processor, data associated with a center of gravity of the vehicle; determining, by a processor, a wheel moment adjustment command for each wheel of the vehicle based on the received data; determining, by a processor, at least one control output based on driver commands and the wheel moment adjustment command for each wheel; and selectively controlling, by a processor, at least one component associated with at least one of an active safety system and a chassis system of the vehicle based on the at least one control output.

Abstract: A damper apparatus includes a shock-absorbing member configured to absorb a shock while restricting movement of a shaft relative to a housing. The shock-absorbing member includes a shock-receiving member configured to come into contact with one member, which is one of a large-diameter portion of the shaft and a restriction portion of the housing, and a pre-compression spring disposed between the other member, which is the other of the large-diameter portion and the restriction portion, and the shock-receiving member in a state where the pre-compression spring is compressed in advance in an axial direction. The pre-compression spring is configured to urge the one member in the axial direction via the shock-receiving member when the large-diameter portion is relatively moved toward the restriction portion beyond a prescribed position.

Abstract: A method of adjusting a steering mechanism of a front axle of a rear carriage of a multi-part wheeled articulated vehicle includes the step of adjusting the steering mechanism to a setting corresponding to a target value of the steering deflection angle of the wheels of the front axle of the at least one rear carriage and modifying the steering deflection angle such that forces and/or moments and resulting displacements and/or torsions and/or tensions acting on the front and/or rear carriages are minimized.

Abstract: The present invention is a guidance computing system used by the driver of a vehicle towing a trailer while backing-up that rapidly calculates and predicts the direction in which the tow vehicle and trailer will become generally in-line for a given position of the steering wheel, thereby enabling the use of slower, lower cost microcomputers. This is accomplished by using a predetermined table, based on a baseline trailer of known length, having a measure of turning as one of its axes; such an axis is necessary to facilitate ratiometric scaling to convert table values to correspond to any length trailer. In a specially equipped vehicle incorporating servomechanisms to enable the vehicle to steer itself, the driver indicates the direction desired for the trailer to travel. The present invention also predicts left and right path limits for controlling the direction of the trailer when maneuvering complex paths.

Abstract: A steering-wheel assembly includes an actuator, an actuator controller, a steering wheel, an attachment, and a data connector (referred to hereinafter as a first data connector). The actuator controller includes a processor and a memory and is communicatively coupled to the actuator. The steering wheel is rotatably coupled to the actuator. The attachment is coupled to the actuator. The first data connector is mounted on the attachment and in communication with the actuator controller. The actuator controller is programmed to instruct the actuator to rotate the steering wheel based on steering-wheel control data provided via the first data connector.

Abstract: A method of assisting a driver of a vehicle includes obtaining a feature of a road to be traveled by the vehicle with a sensor and/or a GPS system. A parameter is selected to assist a driver of the vehicle in driving a segment of the road based on the feature of the road. The parameter includes information on the location of a boundary along the road and a preferred trajectory to be driven along the road. A controller determines whether a current trajectory of the vehicle while travelling the road is deviating from the preferred trajectory of the vehicle along the road. A feedback operation is provided to assist the driver in guiding the vehicle nearer to the preferred trajectory based on the selected parameter.

Abstract: A method of assisting a driver of a vehicle in driving a road, the method includes determining a location of a road boundary along a segment of a road relative to the vehicle using a sensor, selecting, via a controller, a parameter for the segment of the road, the parameter including a plurality of values corresponding to a plurality of boundary locations along the segment of the road, determining, via the controller, whether the vehicle is approaching the road boundary based on a vehicle trajectory and the location of the plurality of boundary locations, and providing a feedback operation to assist the driver in avoiding the road boundary, the feedback operation based on the selected parameter.

Abstract: A system and method of parking a vehicle is disclosed. A vehicle may be provided with a manual transmission. The vehicle may be equipped with an automatically modulated clutch. A target parking space may be identified. The clutch may be modulated automatically through a controller to move the vehicle while scanning the target parking space. The vehicle may be automatically steered through the controller while simultaneously modulating the clutch automatically through the controller to move the vehicle into the target parking space.

Abstract: A vehicle body reinforcement device includes a housing including a first retaining portion and a second retaining portion each disposed at an inner portion of the housing, the inner portions that are spaced apart from each other by a predetermined distance in the axial direction, a first shaft member, a second shaft member, a first biasing member, a second biasing member, and a pressing member supported on the first shaft member so as to be movable in a direction orthogonal to an axis of the first shaft member within the housing and to be contactable with an inner surface of the housing, the pressing member pressing the inner surface of the housing.

Abstract: An automobile vehicle body and an automobile vehicle body manufacturing method is provided in which a metal joint is divided into an upper joint and a lower joint. The upper joint includes an upper wall which is fitted into a side member, a vehicle width direction inner wall and a vehicle width direction outer wall, and a lower joint includes a lower wall which is joined to a lower face and an outside face of a vehicle body floor, and the vehicle width direction outer wall, and therefore, the vehicle width direction outer wall of the upper joint is fastened to the vehicle width direction outer wall of the lower joint by a first bolt, and the vehicle width direction inner wall of the upper joint is fastened to an inside face of the side member by a second bolt.

Abstract: Disclosed is a landscaped surface applicable to all types of vehicles, which includes a frame with a settling base that rests on a detachable supporting element or directly on the roof of the vehicle, inside which there are separator partitions and a root development base made of flexible and light hydrophilic material, with a reticular structure that retains a volume of water of between 10 and 30 times the weight thereof, expelling the excess via drainage openings arranged in the lower area of its vertical face of the frame. There is a layer of covering vegetation on the root development base and a mesh secured to a fastening flap in the high part of the frame.

Abstract: A B pillar of a motor vehicle with a base region and a bead region; in the base region, there is a contact region with a connecting region for connecting the B pillar to a rocker panel; over the span of its height from a base edge to a B pillar head, the B pillar has hard and soft regions, wherein the B pillar has a soft region, which extends from a contact region of the B pillar with the rocker panel to the B pillar head and in this case, extends for at least 100 mm.

Abstract: A drag reducing device for a vehicle includes an air flow turning component having a curved surface adapted to turn air flow passing over the curved surface, a first mounting component for connecting the air flow turning component to a rear door of the vehicle, and a second mounting component for connecting the air flow turning component to one of the opposite side walls of the vehicle. The mounting components are configured so that the air flow component is automatically in a deployed position when the rear door is closed, in which position the air flow turning component turns air flow passing along the side the vehicle inward to thereby reduce drag. The mounting components are further configured so that the air flow component is automatically stowed between the rear door and the vehicle side wall when the door is fully opened. The air turning component is an extrusion sized for a minimal prominence in the stowed position.

Abstract: An air deflector assembly for a vehicle includes a vertically translatable air deflector and linear actuators actuated in series by a driver to vertically translate the air deflector. The air deflector includes one or more rails configured for sliding translation within one or more cooperating vehicle-mounted tracks. A controller is operatively connected to the driver, and may be configured to vertically translate the air deflector to a predetermined position according to a vehicle rate of travel. The driver selectively causes the linear actuators to raise or lower the air deflector.

Abstract: An apparatus, system, and related methods for holding and maneuvering an industrial vehicle spare tire include a tire support positioned on an industrial vehicle. An industrial vehicle tire is removably securable to the tire support, wherein the tire support has at least two independently adjustable threaded members for controlling engagement of the tire support and the industrial vehicle tire. A winch is positioned proximate to the gate of the industrial vehicle. At least one pulley is positioned above the tire support, wherein at least one winch cable is connected between the winch and the at least one pulley.

Abstract: The drive unit includes a watertight elongated housing extending along a longitudinal axis and defining an inner chamber, two juxtaposed tracks disposed around the housing along its longitudinal axis and enabling the drive unit to move when the tracks are rotatably driven around the housing, and at least one track-driving motor. The motor is located within the inner chamber of the housing and includes an output shaft mechanically connected to the corresponding track. The unit can also include a ventilation circuit for the interior of the inner chamber of the housing, and a generator for producing electricity. The drive unit can be manufactured from a single housing or with the housings of two apparatuses that are juxtaposed and rigidly paired.

Abstract: A snow thrower includes a frame, a prime mover supported by the frame, and a handle assembly coupled to the frame. The handle assembly includes a grip for an operator to grasp. The snow thrower further includes an auger housing supported by the frame, and an auger blade rotationally coupled to and disposed within the auger housing. A track drive system is coupled to the frame to facilitate movement along a ground surface. The track drive system includes a drive wheel rotatably driven by the prime mover, an idler wheel rotatably supported by the frame, and a flexible track interconnecting the drive wheel and the idler wheel. The idler wheel is translatable relative to the frame to adjust an orientation of the auger housing relative to the ground surface.

Abstract: A track system for use as a wheel replacement on typically wheeled vehicle is disclosed. The track system comprises a drive wheel configured to be mounted to the vehicle, a support frame, front and rear idler wheels respectively pivotally mounted at the front and at the rear of the support frame, road wheels pivotally mounted along the support frame between the front and read idler wheels, and an endless track mounted about the wheels. The position of the front and/or rear idler wheels is adjustable in order to modify the overall shape of the perimeter of the track system generally defined by the endless track, thereby changing the riding behavior of the track system. A method to change the position of the adjustable idler wheels is also disclosed.

Abstract: A trailer dolly can include various features to be adjustable between a manual configuration and a vehicular towing configuration. In the manual configuration, a user can manually maneuver the trailer dolly to position the trailer, such as by using one or more retractable handles. Where the user desires to maneuver the trailer with a vehicle, the trailer dolly can be adjusted to the vehicle towing configuration. In an example, the trailer dolly can be coupled to the vehicle with a second hitch attached to the trailer dolly, the second hitch located distally along the tow bar with respect to the trailer hitch supporting the trailer load. Accordingly, the trailer dolly can be used for both manual and vehicular applications and the user can transition between the manual and vehicular configurations while the trailer is hitched to the trailer dolly.

Abstract: Provided are a system and method for measuring a vehicle gap or step, where a vehicle body to which a hood, a door, and a trunk lid are assembled is seated on a carrier and moved along transfer lines. The system may be installed over the transfer lines and may include one or more door regulating units attached between the vehicle body and the door, upper rails in both sides above a workplace corresponding to the transfer lines, a moving frame movable below the upper rails, a forward/backward moving unit above the moving frame, a horizontal moving unit to move installation frames, a vertical moving unit in the installation frames to reciprocally move a sliding plate upwardly and downwardly, a measurement module movable and rotatable to measure the gap or the step, and an electronic tag on a roof of the vehicle body.

Abstract: A fuel cell vehicle includes a high voltage apparatus for a fuel cell, a compressor for an air conditioner disposed under the high voltage apparatus for the fuel cell and constituting a module integrated with the high voltage apparatus for the fuel cell, and a power control unit separated from the high voltage apparatus for the fuel cell, disposed at a vehicle body over the compressor and configured to control an operation of a motor. The compressor and the high voltage apparatus for the fuel cell are connected by a single power wiring.

Abstract: Systems and methods for providing adequate lighting and sighting for a bicycle are disclosed. A lighting system that includes an illumination ring configured to be coupled to a wheel is also disclosed. The illumination ring is configured to simultaneously project light forward and to the side of a front wheel and to project light rearward of and to the side of a rear wheel. The illumination ring may be mounted to or integrated with the bicycle wheel. Methods of controlling light sources on the illumination ring are also disclosed. The lighting system can include an inductor module 5320 for powering lights of the illumination ring.

Abstract: A bicycle brake light configured for attaching to a bicycle braking system such that the brake light illuminates when the braking system is activated. The devices includes a rotating switch which operates to turn on a light when the bicycle brake is operated through mechanical interaction with elements of a Bowden cable.

Abstract: In a windshield device for a saddle-ride type vehicle equipped with a windshield portion provided adjustably in height, the windshield portion is attached through a rail member 41, the rail member 41 is equipped with an upper elongate hole 48b, a lever member 42 covering the upper elongate hole 48b and a lock pin 46 fixed to a body side are equipped, the rail member 41 is provided slidably relative to the lock pin 46 inserted through the upper elongate hole 48b, and the lever member 42 is equipped with a plurality of holes 68 with which the lock pin 46 is engageable.

Abstract: A holder for a two-wheeler accessory, in particular for a two-wheeler lock, comprises a base body by which a contact surface is defined which the two-wheeler accessory contacts when it is received in the holder and one or more pivot clips that each comprise a holding limb and a lever limb and are pivotable about a pivot axis beyond a dead center between a release position and a securing position in order to allow a receiving of the two-wheeler accessory in the holder or a removal of the two-wheeler accessory from the holder in the release position and to block the two-wheeler against a removal from the holder in the securing position by means of the holding limb when said two-wheeler accessory is received in the holder.

Abstract: A self-balancing transportation device having improved shock absorbing ability and operation. Several embodiments are disclosed including a single wheel or wheel structure device with foot platforms disposed for angular movement about an axis of rotation that is non-collinear with the axis of rotation of the drive wheel. Single and multiple wheel devices are disclosed as well as devices having independently movable foot platforms, and devices having load platforms that rotate independently and are movable longitudinally with respect to one another, among other embodiments.

Abstract: The invention relates to a foldable bicycle (10) with a first part of the frame (1) that carries a first wheel (11) and a crank-drive and a second part of a frame (2) that carries a crank-drive driven second wheel (12), wherein the first part of the frame (1) and the second part (2) are connected to each other by a swivel connection (4) through which the second wheel (12) that is fastened to the second part of the frame (2) is swiveled by a swivel movement in the direction of the first wheel (11) in the same direction as the pedal axle (A), including the fender (3) belonging to the second wheel (12). In order to also be able to roll the bicycle in a folded state, the fender (3) consists of a first fender part (3a) and a second fender part (3b), wherein the first fender part (3a) is attached to the second part of the frame (2) and the second fender part (3b) is movably mounted relative to the first fender part (3a).

Abstract: An arrangement for mounting a rear wheel axle, having a dropout and a slide which is movable relative to a chain stay. The slide is displaceably arranged within the chain stay, which is hollow in this region, whilst the dropout is provided outside the chain stay and the slide and the dropout are connected to one another through at least one opening in the chain stay.

Abstract: A vehicle includes a right front wheel, a left front wheel, a brake operator, grips, and a steering force transmission which transmits a steering force to the right front wheel and the left front wheel. The steering force transmission includes a steering shaft, a handlebar, and a tie rod. Brake operators, which operate the brakes, and the grips are located on the handlebar, and a rubber damper located on the steering force transmission significantly reduces or prevents vibrations from being transmitted to the grips, wherein the vibrations are due to a difference between a frictional force generated between the right front wheel and a corresponding road surface and a frictional force generated between the left front wheel and a corresponding road surface.

Abstract: An ABS modulator support structure of a saddle type vehicle includes a main frame, a down frame, a pair of shroud which cover the right and left side of the frames, a radiator, a reserve tank which stores a coolant for the radiator, and an ABS module. The radiator is arranged on one (left side) side of the down frame 18 in a width direction of the vehicle. The ABS module is arranged on the other (right side) of the sides of the down frame in the width direction of the vehicle. The reserve tank and the shrouds are arranged outside the ABS module.

Abstract: A hydraulically operated disc brake caliper group with a fixing side faced towards a load-bearing element when mounted on it. The fixing side is configured to substantially rest directly on the load-bearing element, and a hydraulic connector is positioned at the fixing side of the caliper body. This configuration makes it possible to house the tube entirely in the load-bearing element of the bicycle, and to have complete closure of the opening on the load-bearing element. Furthermore, if vibrations generated while the bicycle is in motion loosen the fasteners, they can be retightened without having to dismount the caliper group.

Abstract: A double clamp clipless pedal includes a pedal body, a main shaft, and a clamp assembly. The pedal body has a first surface and a second surface. The clamp assembly is provided with a front clamp and a rear clamp rotatably disposed on two sides of the main shaft, such that the front clamp and the second clamp permanently rotate toward the main shaft for engaging a shoe cleat. The front clamp and the rear clamp are allowed to automatically swing together with the shoe cleat movement for maintaining the engagement. The front and rear clamps are able to resiliently and rotationally open, whereby the shoe cleat is easily clamped and disclamped by the front and rear clamps.

Abstract: A method as well as a device are described for use in a two-wheeler, in particular in an at least partially electrically drivable bicycle. In this context, the lift-off of at least one wheel is initially detected and a jump is inferred therefrom, possibly while utilizing further sensor signals. Then the risk is calculated that this jump may cause a rollover, e.g., over the handlebars or in the backward direction. In the event that this is the case, the at least one lifting-off wheel is acted upon in such a way that a counter torque is generated that counteracts the rotary motion leading to the rollover.

Abstract: A motorized gear reducer is provided with a hollow motor in the housing and including an annular rotor having a through hole, and a shaft passing through the through hole; and a planetary gear train in the through hole and placed on the shaft, the planetary gear train including a sun gear assembly having a first sun gear in the housing, and a second sun gear on the shaft; planet gear assemblies equally spaced apart around the sun gear assembly, each including a first planet gear meshing with the first sun gear, and a second planet gear coaxially disposed with the first planet gear and meshing with the second sun gear; and a ring gear on an inner surface of the rotor. A speed reduction ratio of a first stage and a speed reduction ratio of a second stage are rendered.

Abstract: A marine deck member with enhanced surface traction and the process for forming the same. The marine deck member comprises a sandwich-type composite panel made by a compression molding process. In such a process, the panel is made by subjecting a heated stack of layers of material to cold-pressing in a mold. The cellular core has a 2-D array of cells, each of the cells having an axis substantially perpendicular to the outer surfaces, and extending in the space between the layers or skins, with end faces open to the respective layers or skins. The surface traction of this type of composite panel can be enhanced for marine deck applications by controlled debossing, or embossing, of the first skin while it cools in the compression mold. The debossing effect can be effected by applying pressurized gas, e.g., pressurized air, onto the outer surface of the first skin while in the compression mold.

Abstract: A mast system for use with a sailing vessel including a flexible mast connected to a first point of the sailing vessel; a tether connected to a second point of the sailing vessel, the tether being further connected to the flexible mast, wherein the lengths of the tether and the flexible mast are sized to pull the flexible mast into an arch.

Abstract: Embodiments relate generally to a turret system for use in an FPSO vessel. The turret system may comprise a turret body and windlass subsystem. The turret system may comprise a top and bottom surface, first and second mooring line storage sections, and first and second mooring line channel sections. Each mooring line storage section may include an opening and cavity. Each opening is operable to receive a mooring line. Each mooring line channel section may be an elongated passageway for a mooring line to pass between an exterior of the FPSO vessel and a mooring line storage section. The windlass subsystem may comprise a rotatable member, and configured to be transportable between a plurality of locations. When the windlass assembly is configured to be secured to the turret body, the windlass assembly is configurable to control a movement of a mooring line.

Abstract: A container ship and a layout structure thereof are disclosed. In the layout structure of the container ship of the present invention, an engine room, in which a propulsion engine receiving LNG as fuel is provided, is disposed under a main deck at the stern of the container ship, an LNG storage tank storing the LNG is disposed in a cargo hold adjacent to the engine room, a fuel supply part for receiving the LNG from the LNG storage tank and supplying the LNG to the propulsion engine is disposed right above the LNG storage tank inside the cargo hold, and a void space isolating the LNG storage tank and the fuel supply part from each other is disposed therebetween.

Abstract: Systems and methods are disclosed herein for a pressure tolerant energy system. The pressure tolerant energy system may comprise a pressure tolerant cavity and an energy system enclosed in the pressure tolerant cavity configured to provide electrical power to the vehicle. The energy system may include one or more battery cells and a pressure tolerant, programmable management circuit. The pressure tolerant cavity may be filled with an electrically-inert liquid, such as mineral oil. In some embodiments, the electrically-inert liquid may be kept at a positive pressure relative to a pressure external to the pressure tolerant cavity. The energy system may further comprise a pressure venting system configured to maintain the pressure inside the pressure tolerant cavity within a range of pressures. The pressure tolerant cavity may be sealed to prevent water ingress.

Abstract: The present application is directed to a flotation device for use in aquatic physical therapy. The flotation device preferably comprises side portions that wholly or partly surround the user, and permit the user's elbow(s) and/or forearms to rest upon and be supported thereby. The flotation device also preferably has at least one handgrip permitting the user to easily hold onto and be supported by the flotation device. Additionally, the present invention comprises methods of making and using such a flotation device.