Abstract: A four wheel drive power transmission system may include: a front wheel drive unit configured to selectively transmit power of an engine and power of a first motor/generator to a front wheel differential apparatus; and a rear wheel drive unit configured to transmit power of a second motor/generator to a rear wheel reduction gear unit.

Abstract: An all-terrain vehicle (“ATV”) includes a plurality of ground engaging members and a frame supported above a ground surface by the plurality of ground engaging members. The frame extends along a longitudinal centerline of the ATV. The ATV further includes an operator seat supported by the frame, an engine supported by the frame, and a continuously variable transmission (“CVT”) supported by the frame and operably coupled to the engine. Additionally, the ATV includes a CVT cooling air inlet fluidly coupled to the CVT and positioned forward of a forward end of the operator seat, and a CVT cooling air outlet fluidly coupled to the CVT and positioned forward of the forward end of the operator seat.

Abstract: A working vehicle includes a traveling machine body including a bottom plate on which a battery is placed and a radiator bracket for installing a radiator, and a stay. A first end of the stay is fixed at a region close to one side in a width direction of the bottom plate and a second end of the stay is fixed to a vertical frame on the other side in the width direction of the radiator bracket. The stay extends between the first end and the second end by being bent so as to surround one and upper sides of the battery.

Abstract: A pressure relief valve (10, 70) is provided having a first tubing (14a) connectable to a fuel tank (62) and a second tubing (14b) connectable to a fuel vapor treating device (64), the pressure relief valve comprising: an externally actuated (hereinafter EA) valve (20) disposed between the first tubing (14a) and the second tubing (14b) and being configured for pulsed actuation by a controller (28) thereby allowing pulsed fluid flow through a primary port (18a) disposed between the first tubing (14a) and the second tubing (14b).

Abstract: An apparatus for receiving, storing, carrying and discharging a liquid, which comprises a container with a discharging device for discharging the liquid. The discharging device has a hollow cylindrical shape and is connected to the container. Another side has a discharge opening. There is a protective layer at the discharging device near the container, which holds back the liquid. The protective layer is set-back with respective to the discharge opening by a minimum distance.

Abstract: Provided is a lid device which is compact, and can be installed in an efficient manner. The lid device (20) releasably locks a lid provided with a hinge (12) in a closed position. The lid device is provided with a push lifter that alternates between an extended state and a retracted state each time the lid is pushed, a motor (54) placed next to the push lifter, a lock member (18) and a transmission mechanism (60, 64) for transmitting the output of the motor. The push lifter and the motor are arranged such that a lengthwise direction of the push lifter and a lengthwise direction of the motor are perpendicular to each other, and such that the motor at least partly overlaps with the push lifter when seen from the lengthwise direction of the motor.

Abstract: Provided is a lid device which is compact, and can be installed in an efficient manner. The lid device (20) releasably locks a lid (10) provided with a hinge (12) in a closed position. The lid device is provided with a push lifter (32) that alternates between an extended state and a retracted state each time the lid is pushed, a motor (46) placed next to the push lifter, a lock member (18) and a transmission mechanism (64) for transmitting the output of the motor. The push lifter and the motor are arranged such that a lengthwise direction of the push lifter and a lengthwise direction of the motor are parallel to each other.

Abstract: Disclosed is a method for estimating a range for a vehicle, wherein said vehicle comprises a combustion engine and a fuel supply system associated with said combustion engine, wherein the vehicle also comprises a first main tank for receiving fuel, and a first fuel pump for transfer of fuel from said first main tank to said fuel supply system. The method comprises: based on data relating to the road ahead of the vehicle and a first measure of the residual fuel in said first main tank, estimating a range for said vehicle.

Abstract: A hand control throttle system includes an actuating mechanism and a sensor. The system is mounted to a standard steering wheel for a vehicle, so that a disabled driver can operate the throttle using a single hand (either right or left) while the hand is also holding the steering wheel.

Abstract: A method for controlling a vehicle driving may include determining whether a vehicle is driving at a fixed speed, recording, including detecting a change in a vehicle speed or a state change of a vehicle speed change device while driving and storing a change pattern when the vehicle is driving at the fixed speed, determining a driver's driving intention based on the detected change pattern, and controlling the driving state of the vehicle depending on the determined driving intention.

Abstract: A method and apparatus for vehicle operation assistance information management may include a vehicle, which may include a primary graphical display portion and a secondary graphical display portion. Vehicle operation assistance information management may include identifying vehicle operation assistance information, identifying an immanency, an urgency, and a utility for the vehicle operation assistance information. The urgency may indicate an advance urgency, and a graphical representation of the vehicle operation assistance information may be presented via the secondary graphical display portion. The urgency may indicate an advisory urgency or a warning urgency, a first portion of a graphical representation of the vehicle operation assistance information may be presented via the primary graphical display portion, and, subsequently, and a second portion of a graphical representation of the vehicle operation assistance information may be presented via the secondary graphical display portion.

Abstract: A vehicle implementing vehicle operation assistance information management for autonomous vehicle control transfer may identify a vehicle operation assistance information item indicating a location of an expected vehicle operation control transfer, and may, on a condition that an immanency for the vehicle operation assistance information item is within a maximum relevant immanence, determine an urgency based on the immanency, and present a representation of the vehicle operation assistance information item, which may include controlling a primary graphical display portion of the vehicle to present a graphical representation of the vehicle operation assistance information item, controlling a secondary graphical display portion of the vehicle to present the graphical representation, or a combination thereof. The vehicle may, control an auditory presentation device of the vehicle to present an auditory representation of the vehicle operation assistance information item.

Abstract: A vehicle implementing vehicle operation assistance information management for autonomous vehicle control operation may identify a vehicle operation assistance information item, the vehicle operation assistance information item indicating a location of a candidate vehicle control operation.

Abstract: An information providing apparatus for a vehicle includes in-vehicle devices, a communication network connected to each of the in-vehicle devices, a storage portion in which a signal change pattern based on the condition of each of the in-vehicle devices is stored in associated state for each situation around the vehicle, a situation determining portion that determines the situation around the vehicle based on the signal change of at least one in-vehicle device and the stored signal change pattern, an information acquiring portion that acquires information on the condition of the in-vehicle device related to the determined situation around the vehicle, an information generating portion that generates notification information on a recommended operation based on the information on the condition of the related in-vehicle device, and an information presenting portion that presents the notification information on the recommended operation.

Abstract: A steering assembly that is provided with an autonomous vehicle includes a display interface and a controller. The display interface is disposed on a steering wheel and is configured to display an image. The controller is in communication with the display interface and an advanced driver assist system. The controller is configured to operate the display interface to display the image in response to activation of the advanced driver assist system and orient the image based on a rotational position of the steering wheel.

Abstract: A vehicular pointer-type residual quantity meter comprises: a display panel that has a scale part which allows a driver to recognize a residual quantity, and a non-scale part that differs from the scale part; a pointer unit that is disposed behind the display panel; a pointer driver body unit that carries out a movement of the pointer unit in a real space; and a control unit that controls the pointer driver body unit in so that the pointer unit indicates one of metering regions in the scale part in replay to a current residual quantity. The control part controls the pointer driver body unit so that when the residual quantity decreases to zero, the pointer unit moves from a metering region corresponding to a zero residual quantity in a direction opposite to a metering region corresponding to a residual quantity value greater than zero to the non-scale part of the display panel.

Abstract: An electronic device includes a housing, a conductive foil, an elastomer body, and a strip composed of a non-elastomeric plastic. The conductive foil is electrically connected to the housing and has a functional section situated outside of the housing. The functional section of the conductive foil has a front side bearing sensors and/or display elements and is installable to a control panel. The elastomer body and the strip are positioned between an outer side of the housing and a back side of the functional section of the conductive foil.

Abstract: An ECU includes: a control section for controlling an engine such that the engine is operated in an intermediate load state during electric power feed from an electric power feed section to the outside of a vehicle; a learning section for learning a control parameter based on a state quantity detected by a detector, the control parameter being used by the ECU to control the engine; and a determination section for determining whether a learning condition that the learning section learns the control parameter is established. When the learning condition is established during the electric power feed from the electric power feed section to the outside of the vehicle, the determination section makes a control section control the engine such that a state thereof is changed from the intermediate load state to either an idle state or a low load state, and makes the learning section learn the control parameter regarding the engine in the idle state or the low load state.

Abstract: A method for controlling a multiphase frequency converter for controlling an electric machine which is suitable as a traction drive of a vehicle. The frequency converter includes power circuit pairs with series-connected first and second power switches. The first power switch is connected to a DC voltage and the second power switch is connected to a ground of the DC voltage. Each node between the first power switch and the second power switch is connected to the respective phase conductor of the electric machine. The method includes ascertaining whether a fault is present, if a fault is present and a control signal at the first and/or the second power switch is not active: assessing whether the frequency converter should be switched into the short-circuit mode or into the freewheeling mode based on the phase conductor currents and/or based on the position of the rotor of the electric machine.

Abstract: To provide a drive control device of a moving body capable of increasing a regeneration amount without hindering a driver's brake operation and causing too much deceleration. A drive control device of a moving body that updates a regenerative pattern of a driving motor of the moving body including a brake that generates a braking force by being linked to an operation amount of a brake pedal, the drive control device including an external world information acquisition unit that acquires external world information and a brake detector that detects ON/OFF of the brake, wherein when the brake detector detects ON, the regenerative pattern is changed based on the external world information acquired by the external world information acquisition unit such that a braking distance only decreases.

Abstract: A control method for a power generation equipment is provided. The control method for a power generation equipment is adapted to a power generation equipment driving the generator by the engine. First, determining the initial time of the combustion stroke in an internal combustion engine cycle according to at least one sensing signal. Then, controlling the generator to output electric power with a first current in a first time interval starting from the initial time of the combustion stroke is performed. And, controlling the generator output electric power with a second current after the first time interval is performed. The second current is greater than the first current.

Abstract: A power net system of a fuel cell vehicle is provided. The power net system includes a fuel cell and a high-voltage battery unit connected in parallel via a main bus and a first switching unit that is configured to form and block an electrical connection between an output terminal of the fuel cell and the main bus. A load device diverges and is connected between the output terminal of the fuel cell and the first switching unit. A reverse current blocking unit is connected between the first switching unit and a node from which the load device diverges. A second switching unit is configured to form and block an electrical connection between the output terminal of the fuel cell and the load device. A controller operates the first and second switching units and adjusts the electrical connection state between the main bus and the high-voltage battery unit.

Abstract: A power net system of a fuel cell vehicle is provided. The power net system includes a fuel cell and a first switching unit that is configured to form and block an electrical connection between an output terminal of the fuel cell and a main bus. A load device diverges and is connected between the output terminal and the first switching unit. A reverse current blocking unit is disposed between the output terminal of the fuel cell and a node from which the load device diverges and is configured to block a current flow to the output terminal of the fuel cell. A second switching unit is configured to form and block an electrical connection between the output terminal of the fuel cell and the load device. A controller operates the first and second switching units to form the electrical connection between the main bus and the load device.

Abstract: Systems and methods are provided for swapping the battery on an unmanned aerial vehicle (UAV). The UAV may be able to identify and land on an energy provision station autonomously. The UAV may take off and/or land on the energy provision station. The UAV may communicate with the energy provision station. The energy provision station may store and charge batteries for use on a UAV.

Abstract: Systems and methods for charging an electric battery of a vehicle are provided. The vehicle includes a battery for powering an electric motor of the vehicle. A controller of the vehicle is provided to interface with a battery and to enable control of charging of the battery. The vehicle includes a communications interface for enabling wireless communication with a server, and the server is configured to manage a plurality of user accounts for users. The server is one of a plurality of servers, and the servers providing access to cloud services regarding vehicle use and metrics.

Abstract: A charging station (10) for charging a plug-in motor vehicle (24) at a charging post (12) has a power transformer (14) and rectifier modules (16). The power transformer (14) has terminal leads (18) that are DC-isolated on the secondary side. The terminal leads (18) are connected at least partially to the rectifier modules (16). The power transformer (14) and the rectifier modules (16) are configured so that the rectifier modules (16) emit a low DC voltage when the power transformer (14) is fed with a medium voltage.

Abstract: A method is provided that aids the driver of an electric vehicle (EV) in optimizing their car's driving range. In response to the charge level of the car's battery pack falling below a preset value, the system provides the driver with one or more recommendations as to how to increase vehicle range, recommendations such as lowering top speed, altering the temperature settings of the car's HVAC system, etc. Additionally, the system provides the driver with real time driving range feedback, thereby helping the driver to evaluate the various recommendations and determine which approach is best suited to the current conditions.

Abstract: Systems, methods, and other embodiments associated with identifying a user of a charging station. According to one embodiment, a system includes a communication logic and an authorization logic. The communication logic aggregates transaction data to an authorizing entity. The transaction data is associated with a user and a chargeable vehicle. The authorization logic receives an authorization request to authorize a transaction between the chargeable vehicle and the charging station. The authorization logic sends a response to the authorization request. The communication also enables the chargeable vehicle to receive a charge from the charging station based on the response to the authorization request.

Abstract: An electric power supply system program causes a control apparatus capable of controlling an electric power supply system to realize: a pairing information generating function to generate, when receiving an electric power supply request, specific pairing information that is pairing information; a pairing information transmitting function to transmit the specific pairing information to an object that has output the electric power supply request; a pairing information receiving function to receive the pairing information from the object by communication with the object located in the electric power supply space; and an electric power supply function to supply electric power to the object located in the electric power supply space when the received pairing information coincides with the specific pairing information.

Abstract: A method is provided that gives real time feedback to the driver of an electric vehicle (EV) regarding the car's driving range, thereby allowing the driver to easily regulate battery usage, and thus driving range, by adjusting their driving style (e.g., top speed, acceleration/deceleration rates, etc.) as well as the settings of the car's various electrically powered auxiliary systems (e.g., HVAC, internal and external lights, entertainment system, etc.).

Abstract: A method is provided that aids the driver of an electric vehicle (EV) in optimizing their car's driving range by allowing the driver to request range optimization help from the EV's control system. In response to the request, the system provides the driver with one or more recommendations as to how to increase vehicle range, recommendations such as lowering top speed, altering the temperature settings of the car's HVAC system, etc. Additionally, the system provides the driver with real time driving range feedback, thereby helping the driver to evaluate the various recommendations and determine which approach is best suited to the current conditions.

Abstract: A method is provided that aids the driver of an electric vehicle (EV) in optimizing their car's driving range by allowing the driver to request range optimization help from the EV's control system. In response to the request, the system provides the driver with one or more recommendations as to how to increase vehicle range, recommendations such as lowering top speed, altering the temperature settings of the car's HVAC system, etc. The recommendations provided by the system take into account current conditions (e.g., posted speed limits, ambient temperature, etc.), thereby insuring that the recommendations made by the system are reasonable. In addition, the system provides the driver with real time driving range feedback, thereby helping the driver to evaluate the various recommendations.

Abstract: A method is provided that aids the driver of an electric vehicle (EV) in optimizing their car's driving range. In response to the car's current driving range falling below that required to travel to a destination entered into the EV's control system, for example via the car's navigation system, the system provides the driver with one or more recommendations as to how to increase range, recommendations such as lowering top speed, altering the temperature settings of the car's HVAC system, etc. Additionally, the system provides the driver with real time driving range feedback, thereby helping the driver to evaluate the various recommendations and determine which approach is best suited to the current conditions.

Abstract: An apparatus for controlling a SOC of a hybrid vehicle comprises a data detector for detecting data including a SOC of a battery, a vehicle speed, an amount of operating of a brake pedal sensor, an amount of operaing of an acceleration pedal sensor, and a driving state of a vehicle to control a SOC of a hybrid vehicle. Included are a correction value calculating unit configured for calculating a correction value of the SOC based on the data; a SOC calculating unit configured for calculating a virtual center SOC based on the correction value of the SOC and an actual SOC; and an engine-on/off determining unit configured for determining whether an engine is turned on or turned off based on the virtual center SOC.

Abstract: An internal resistance estimation method for a secondary battery includes: acquiring an initial internal resistance value and temperature course information including a battery temperature and time information about time at which the battery temperature has been recorded; estimating an increased amount of the internal resistance value after a lapse of a predetermined time from the predetermined reference time on the basis of the temperature course information; estimating a reduced amount of the internal resistance value of the secondary battery resulting from a relative change between a range of use of a state of charge of the positive electrode and a range of use of a state of charge of the negative electrode on the basis of the temperature course information; and calculating an internal resistance variation in the lapse of the predetermined time on the basis of the increased amount and the reduced amount.

Abstract: A switch is to switch a connection mode between a serial mode and a parallel mode. In the serial mode, a fuel cell and a power storage device are connected in series and connected to a travelling apparatus in parallel. In the parallel mode, the fuel cell is connected to the travelling apparatus in parallel. A converter is to be turned on to boost a voltage generated by the fuel cell to be applied to the travelling apparatus and to be turned off when the parallel mode is selected. A controller is to control the switch to switch a connection mode to the parallel mode when power to be consumed by the travelling apparatus is lower than a first power threshold, and to switch the connection mode to the serial mode when the power to be consumed by the travelling apparatus is higher than the first power threshold.

Abstract: A method for controlling a fuel cell vehicle includes: calculating total system power for the fuel cell vehicle; calculating power accumulation device target power; calculating fuel cell target power, the power accumulation device target power and the fuel cell target power satisfying the total system power; controlling a first converter to regulate power of a power accumulation device based on the power accumulation device target power, the first converter being provided between the power accumulation device and a motor driver, the motor driver being to drive a motor to generate travelling power; and controlling a second converter to regulate power generated by the fuel cell based on the fuel cell target power, the second converter being provided between the fuel cell and the motor driver.

Abstract: A software-defined powertrain transmits commands to at least 4 distributed polyphase motor controllers. A single vehicle control unit transforms operator control indicia into a plurality of individual commands, and securely transmits said commands to each one of a plurality of independent motor controllers mechanically coupled to a single wheel by a polyphase electric motor. The motor controllers are DC to variable AC electrical converters which each receives phase and magnitude requirements. An operating system provides an encrypted application-programming interface to operate functions such as torque vectoring, cooling, braking, and battery management. The OS provides an isolating trust zone to each layer or application for authentication and validation. Upgrades are available to install new features or improvements after a vehicle is in the field. Independent developers may test and furnish new capabilities without exposing or corrupting the IP of other vehicle modalities.

Abstract: A control device of an electric vehicle comprises: an operating state detector that detects the operating state of an accelerator pedal; a motor controller that executes deceleration control over a travel motor, including coasting control which reduces the driving force of the travel motor to zero, when the returning operation of the accelerator pedal is detected by the operating state detector; and a region setter that sets the range of the depression amount of the accelerator pedal for executing the coasting control, based on the depression amount of the accelerator pedal at the start of the returning operation of the accelerator pedal. The control device can switch among the types of control over the travel motor during the returning operation of the accelerator pedal, while suppressing a driver's sense of incongruity.

Abstract: A method is provided that aids the driver of an electric vehicle (EV) in optimizing their car's driving range. In response to the car's current driving range falling below a preset value, the system provides the driver with one or more recommendations as to how to increase range, recommendations such as lowering top speed, altering the temperature settings of the car's HVAC system, etc. Additionally, the system provides the driver with real time driving range feedback, thereby helping the driver to evaluate the various recommendations and determine which approach is best suited to the current conditions.

Abstract: A transport system includes a non-rail-bound, electric or hybrid-electric vehicle, an overhead contact line system along a lane for providing electrical energy, and a pantograph on the vehicle feeding electrical energy through a sliding contactor to line system contact wires. A detection device on the vehicle detects a position-dependent contact wire height and has a position determination system for a current detection position of the vehicle and a sensor system above a wheel level determining a contact wire height above a roadway at the detection position. A monitoring center has a storage device storing position-dependent target ranges for non-critical contact wire heights. A communication device transmits data between the monitoring center and the vehicle and contact wire heights detected on the vehicle with detection positions to the monitoring center. Critical contact wire heights within the line system can thus be quickly and centrally identified.

Abstract: A vehicular occupant determination apparatus includes a load detection portion, an occupant determination portion, an acceleration detection portion, a transition prohibition portion, a drive state detection portion, and a prohibition release portion. The load detection portion detects a load of a left part or a right part. The occupant determination portion determines occupant types, and maintains or transits a determination result. The transition prohibition portion sets a transition prohibition state when the acceleration is equal to or greater than a predetermined acceleration threshold. The prohibition release portion sets a prohibition release state when (i) the acceleration is equal to or greater than the acceleration threshold, and (ii) the prohibition release portion detects that the vehicle is in stop based on a detection value detected by the drive state detection portion, the transition prohibition state being released during the prohibition release state.

Abstract: An occupant discrimination system of a vehicle seat includes: a load detecting portion disposed on a lower side of a seat and detecting a load acting on the seat; an occupant discrimination portion discriminating a state of an occupant among a no occupant, adult seated state, and child seat fixed states based on a load detected from the load detecting portion and a load continuation duration; and a door opening and closing detecting portion detecting an opening and closing state of a door, wherein the occupant discrimination portion changes the state transition condition from the no occupant or child seat fixed state to the adult seated state such that it is difficult to transition in a state in which the door is detected to be in an open state in comparison to a state in which the door is detected to be in a closed state.

Abstract: A vehicle seating assembly includes a front seat and a rear seat, each having a backrest and a squab. The front and rear seats are arranged in a staggered duplex overlapping relationship. A portion of a front edge of the rear seat squab overlaps a portion of a rear edge of the front seat squab. An inboard edge of the rear seat squab overlaps a portion of an inboard edge of the front seat squab. A longitudinal distance measured from a front edge of the front seat squab to a rear edge of the rear seat squab is less than the sum of the longitudinal lengths of the front and rear seat squabs. A transverse distance measured from an outboard edge of the front seat squab to an outboard edge of the rear seat squab is less than the sum of the widths of the front and rear seat squabs.

Abstract: A vehicle seat includes a cushion frame, a base portion, and a guide structure. The guide structure includes a rail and a rolling mechanism. The rolling mechanism includes an upper guide roller, a lower guide roller, and a roller holder. The rolling mechanism is sandwiched by an upper rolling surface and a lower rolling surface of the rail. The guide structure is configured such that when an occupant load is input to the cushion frame, the guide roller and the rolling surface at one of a first contact point or a second contact point come relatively close together, such that pressure increases, due to a relative position of the roller holder and the rail changing, with the other of the first contact point or the second contact point as a reference point.

Abstract: A seat lifter includes: a connecting member that connects a base member and a seat frame that form a seat and swings in response to external rotating force to raise or lower the seat frame; a first gear provided in the connecting member; a second gear that is provided such that an axial direction thereof is parallel to an axial direction of the first gear and meshes with the first gear; and an operating lever that applies rotating force to the second gear. The teeth of at least one of the first and second gears have such a shape that a tooth thickness of the teeth gradually decreases from one end toward the other end in the axial direction, and the first and second gears mesh with each other by approaching each other in the axial direction.

Abstract: A seat assembly is provided with a seat bottom adapted to mount to a vehicle. The seat assembly further includes a first seat back pivotally attached to the seat bottom defining a recline angle relative to the seat bottom, and a second seat back pivotally attached to the seat bottom proximate to the first seat back defining a recline angle relative to the seat bottom. A pin is pivotally connected to the second seat back, is sized to be received within a latch mechanism on the first seat back, and is operably connected to the second seat back to pivot to a stowed position when the first seat back is pivoted to a recline angle that is less than the second seat back recline angle.

Abstract: A child safety seat includes a seat shell having one side provided with an elongated slot, an anchor strap portion restrictedly held with the seat shell, and a storage pocket provided on the side of the seat shell. The slot communicates with a first opening near a front of the seat shell, and a second opening near a rear of the seat shell. The anchor strap portion is connected with a fastener that is operable to attach with an anchor structure provided in a vehicle, the anchor strap portion being movable along the slot between a first position adjacent to the first opening, and a second position adjacent to the second opening. The storage pocket is sized to receive the fastener and the anchor strap portion for storage, the storage pocket being adjacent to the elongated slot and located between the first and second openings.

Abstract: A child safety seat includes a seat shell having a side provided with an elongated slot, an anchor strap portion routed through the seat shell, and a retractor disposed on the side of the seat shell. The anchor strap portion is movable back and forth along the elongated slot relative to the seat shell, the anchor strap portion being connected with a fastener operable to attach with an anchor structure provided in a vehicle. Moreover, the anchor strap portion has one end assembled with the retractor, the fastener being connected with the anchor strap portion at a location between the elongated slot and the retractor.

Abstract: A vehicle includes a chassis and a seating system. The seating system includes a frame coupled to the chassis, a seat cushion supported by at least one of the frame and a floor of the vehicle, a first recoverable insert configured to provide a first energy attenuation response, and a second recoverable insert configured to provide a second energy attenuation response different than the first energy attenuation response. The seat cushion defines a cavity shaped to interchangeably receive either the first recoverable insert or the second recoverable insert to thereby selectively vary an energy attenuation provided by the seating system.