466 results about "Force generation" patented technology

A system that can accept inputs from one or more users and that can give haptic feedback to one or more users. The system can utilize network communication of data, various complimentary types of end effectors, various complimentary methods for force generation, and various attachments and accessories.

By a force generation device which can generate a magnetic attraction and gas static pressure between a detection system provided on a lower surface side of an FIA surface plate and a surface plate, a predetermined clearance is formed between the detection system and the surface plate, and in a state where the clearance is formed (a floating state), the detection system is driven by a drive device in at least an uniaxial direction within a horizontal plane. Therefore, because the detection system is in a non-contact state to the base platform, movement (positioning) of the detection system with high precision becomes possible. Further, by setting an attraction larger than a repulsion generated by the force generation device, the detection system can be fixed (landed) in a state positioned with high precision.

It is an object of the invention to improve the utility of an electromagnetic absorber system which is disposed in a suspension system of a vehicle and which generates a damping force by a generation force of a motor. The electromagnetic absorber system 18 is equipped with high-speed-motion responding means, thereby obviating an insufficiency of the damping force and a deterioration of the controllability in a high-speed stroke motion. More specifically, a hydraulic absorber 64 is provided in combination with the electromagnetic absorber system such that the hydraulic absorber 64 operates in the high-speed motion in which an electromotive force of the motor 68 exceeds a power source voltage Further, two motors having mutually different T-N characteristics are provided, and the two motors are selectively operated depending upon a stroke speed. Further, a variable resistor is interposed between the motor and the power source, and a resistance value of the variable resistor is increased in the high-speed motion to realize a decrease in a time constant of the motor, etc. Moreover, to cope with a large extent of unevenness of a road surface, an active stroke motion is performed by a drive force of the motor, thereby preventing the high-speed motion from being performed.

Provided are bone conducting hearing devices having a normal force that secures the device to a user. A removable adhesive anchor secures an external component of the bone conducting hearing device to the user and provides reliable connecting that is comfortable, such as by a substantially uniform force generation over the contact area between the device and the user. Because the adhesive anchor is removable, a user can readily and reliably remove the device or connect the device, as desired. Also provide are methods of connecting any of the bone conducting hearing devices provided herein to a user, including the mastoid process of the user.

Mechanisms and methods for clamping force generation are disclosed. In one embodiment, a clamping force generator system includes a permanent magnet bearing coupled to a traction ring and to a torque coupling. The traction ring can be provided with an electromagnetic bearing rotor and the torque coupling can be provided with an electromagnetic bearing stator. In some embodiments, a mechanical load cam, a permanent magnet bearing, and an electromagnetic bearing cooperate to generate a clamping force between the traction rings, the power rollers, and the idler. In other embodiments, a series of permanent magnet bearings and a mechanical bearing configured to produce a clamping force. In one embodiment an electromagnetic bearing is coupled to a control system and produces a specified clamping force that is associated with a torque transmitted in the transmission during operation. In some embodiments, a mechanical load cam produces a clamping force proportional to torque, while a permanent magnet bearing provides a minimum clamping force.

Mechanisms and methods for clamping force generation are disclosed. In one embodiment, a clamping force generator includes a spring coupled to a traction ring and to a load cam roller cage. The traction ring can be provided with a recess to receive the spring. In some embodiments, a relatively short spring is provided. In other embodiments, a spring couples to a wire and the spring-wire combination couples to the traction ring and the load cam roller cage. In some embodiments, the load cam roller cage is provided with tabs adapted to engage the wire and / or the spring. In yet other embodiments, the traction ring is configured to receive a dowel pin for coupling to the spring. One or more of the tabs can include a tab notch that cooperates with a stop pin coupled to the traction ring to provide adjustment of the travel of the load cam roller cage.

Mechanisms and methods for clamping force generation are disclosed. In one embodiment, a clamping force generator system includes a permanent magnet bearing coupled to a traction ring and to a torque coupling. The traction ring can be provided with an electromagnetic bearing rotor and the torque coupling can be provided with an electromagnetic bearing stator. In some embodiments, a mechanical load cam, a permanent magnet bearing, and an electromagnetic bearing cooperate to generate a clamping force between the traction rings, the power rollers, and the idler. In other embodiments, a series of permanent magnet bearings and a mechanical bearing configured to produce a clamping force. In one embodiment an electromagnetic bearing is coupled to a control system and produces a specified clamping force that is associated with a torque transmitted in the transmission during operation. In some embodiments, a mechanical load cam produces a clamping force proportional to torque, while a permanent magnet bearing provides a minimum clamping force.

A vehicle driving assist system comprises a travel situation detection device that detects a vehicle condition and a traveling environment around a subject vehicle; a risk potential calculation device that calculates a risk potential around the subject vehicle based upon detection results of the traveling situation detection device; an accelerator pedal reaction force calculation device that calculates an accelerator pedal reaction force command value based upon the risk potential which is calculated by the risk potential calculation device; an accelerator pedal reaction force generation device that generates an actuation reaction force for an accelerator pedal, according to the accelerator pedal reaction force command value which is calculated by the accelerator pedal reaction force calculation device; a driving intention detection device that detects a driving intention of an operator of the subject vehicle; and an accelerator pedal reaction force modification device that adjusts the actuation reaction force to be generated for the accelerator pedal, based upon a detection result of the driving intention detection device.

A shock absorber includes: at least one cylinder apparatus including a cylinder sealingly containing operating fluid, a piston slidably fittedly inserted in the cylinder to divide an interior of the cylinder into two chambers, and a piston rod coupled to the piston and extending to an outside of the cylinder; and at least one damping force generation mechanism connected to the cylinder apparatus, and capable of generating a damping force to be applied to a flow of the operating fluid caused by a movement of the piston and adjusting the damping force from the outside. The damping force generation mechanism includes a damping valve for generating the damping force, a pilot chamber for applying a pilot pressure by the operating fluid to the damping valve, and a pump for at least supplying or discharging the operating fluid to or from the pilot chamber.

Disclosed herein is a steer-by-wire system for automobiles. The steer-by-wire system includes a steering control unit and a signal input unit. The central control unit includes a reaction force generation unit, a damping force generation unit. The reaction force generation unit generates steering reaction force or restoring force, acting in the reverse direction to that of a steering torque. The damping force generation unit generates damping force, acting in the reverse direction to the steering reaction force or the restoring force (in the same direction as the steering torque). Furthermore, the central control unit generates a current control signal, which is applied to a steering feel generation motor, by combining the resulting values determined by the reaction force generation unit and the damping force generation unit a vehicle velocity signal in response to a steering angle signal, a steering torque signal and a steering angular velocity signal.

A shock absorber includes: at least one cylinder apparatus including a cylinder sealingly containing operating fluid, a piston slidably fittedly inserted in the cylinder to divide an interior of the cylinder into two chambers, and a piston rod coupled to the piston and extending to an outside of the cylinder; and at least one damping force generation mechanism connected to the cylinder apparatus, and capable of generating a damping force to be applied to a flow of the operating fluid caused by a movement of the piston and adjusting the damping force from the outside. The damping force generation mechanism includes a damping valve for generating the damping force, a pilot chamber for applying a pilot pressure by the operating fluid to the damping valve, and a pump for at least supplying or discharging the operating fluid to or from the pilot chamber.

In a force-feedback input device, when the cursor moves on a line parallel to a line between a center of a first button and a center of a second button, an area is determined between a first position, which corresponds to the center of the first button, and a second position, which corresponds to the center of the second button, such that the area extends a distance W on both sides of a mid-point between the first and second positions. In this area, the first and second external-force generation portions are controlled so that a scalar value |F| of an attractive force exerted on an operating portion is decreased according to the equation |F|=d / W·|F| as the cursor moves closer to the mid-point, where d is a distance between the cursor and the mid-point.

Mechanisms and methods for clamping force generation are disclosed. In one embodiment, a clamping force generator includes a spring coupled to a traction ring and to a load cam roller cage. The traction ring can be provided with a recess to receive the spring. In some embodiments, a relatively short spring is provided. In other embodiments, a spring couples to a wire and the spring-wire combination couples to the traction ring and the load cam roller cage. In some embodiments, the load cam roller cage is provided with tabs adapted to engage the wire and / or the spring. In yet other embodiments, the traction ring is configured to receive a dowel pin for coupling to the spring. One or more of the tabs can include a tab notch that cooperates with a stop pin coupled to the traction ring to provide adjustment of the travel of the load cam roller cage.

A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially inside or outside said coil and positioned at an angle relative to a direction of movement of an armature. Further, various recesses, indentations, chamfers, bevels, and / or depressions may be included to affect flux leakage, and / or force generation.

A matrix type piezoelectric / electrostrictive device in which a plurality of piezoelectric / electrostrictive elements almost in a pillar shape, each having a piezoelectric / electrostrictive substance and at least a pair of electrodes, are vertically provided on a thick ceramic substrate, and which is driven by displacement of the piezoelectric / electrostrictive substance. In this matrix type piezoelectric / electrostrictive device, a plurality of piezoelectric / electrostrictive elements are integrally bonded to the ceramic substrate and independently arranged in two dimensions. The pair of electrodes is formed on the sides of the piezoelectric / electrostrictive substance. The percentage of transgranularly fractured crystal grains on at least the sides of the piezoelectric / electrostrictive substance on which the electrodes are formed is 10% or less. The piezoelectric / electrostrictive substance forms a curved surface near a joined section between the piezoelectric / electrostrictive substance and the ceramic substrate. According to this piezoelectric / electrostrictive device, large displacement is obtained at a low voltage, with achievement of a high speed response, a large force generation, excellent mounting capability, a higher degree of integration. The action such as pushing, distorting, moving, striking (impacting), or mixing can be applied to an object of action, or the device operates when such action is applied.

This invention is a portable exercise system capable of performing multiple exercises for strength and endurance training. The key component is the force generation unit (FGU) which is small and light enough to be suspended during the exercise yet capable of producing a force of 50 lbs. The FGU is programmable allowing it to generate various force vs distance, time or velocity profiles. Different handles, cables and attachments can be connected or used with the FGU perform different exercises. The FGU can charge its battery from the user's energy during use. The FGU can communicate bidirectionally with computers and smart phones for setup and to track the user's performance. Multiple FGUs may be used simultaneously each performing a separate function. The entire system is small enough to fit in a drawer or suitcase. The accompanying software can track the user's performance and function as an automated personal trainer.

A garment with prepositioned, definite sensory stimulating devices attached. These sensory stimulating devices include, but are not limited to, electrical stimulation, audio and physical stimulation such as localised force generation, compression, constriction, vibration, and surround sound. Predetermined and defined actuators allow the wearer to receive tissue, nerve and / or muscle stimulation and / or contraction so that the stimulation is precise as determined by its ability to conform to the scientific methodology of repeatability, reproducibility and reliability; this being due to consistency of actuator positioning in one or multiple locals on the human body. A personal surround sound can also be integrated to the garment to ensure the wearer is always in the optimal position relative the speakers. These actuators can be force generators within the garment for the wearer to feel impact or apparatus or electrodes included in the garment to locally constrict and increase pressure on the wearer.

An apparatus for movable weight-compensating suspension of a focussing objective of a laser system comprises a force generation device to generate a counterforce component G which counteracts the weight of the focussing objective, a transmission device which transmits the counterforce component G onto the focussing objective and permits upward / downward compensatory movement of the focussing objective, in such a way that in the case of an upward / downward compensatory movement of the focussing objective, an optical axis (O) of the focussing objective maintains at least its orientation in space, and preferably its position in space.

A method for implementing biomechanical stimulation training includes application of a preselected dynamic force concurrent with a local proprioceptive stimulus at an engagement member and performing at least one dynamic training activity. The method also includes applying a preselected isometric training force concurrent with another local proprioceptive stimulus at the engagement member, and performing an isometric training activity. An apparatus to facilitate performance of dynamic and isometric training activities includes an engagement member structured to facilitate operative engagement with a portion of a person's body, a force generation assembly structured to generate dynamic and isometric training forces at the engagement member, and a vibration generation assembly structured to generate local proprioceptive stimuli at the engagement member.

The invention discloses a composite impact material surface strengthening method and a device based on laser shock wave and electromagnetic pulse. A computer central processing unit controls a laser and an electromagnetic pulse device to act on a specimen panel simultaneously, an adjustable external optical path system alters the path of laser beam, a facula regulating device regulates the size of facula of the laser beam; meanwhile an electromagnetic pulse controller starts an electromagnetic force generation system to ensure that metal specimen panel suffers from dual strengthening effects of laser and electromagnetic pulse, pulse laser and electromagnetic pulse can integrally impact the surface of complex curved surface by adjusting the movement and the rotation of a multi axial coordinate platform, thereby realizing three-dimensional stereoscopic impact. The invention can prevent the surface of the material from generating harmful remnant tensile stress, is applicable to pinhole for fatigue strengthening, damage restoration and reproducing, prevents crack from propagating, eliminates welding stress, and enhances resistance to stress corrosion.

An impact rotation tool includes a drive source that generates power. An impact force generation unit generates impact force by changing the power generated by the drive source to pulsed torque. A shaft transmits the pulsed torque to the distal tool with the generated impact force. A torque detector generates a signal corresponding to the torque applied to the shaft. A determination unit determines whether or not a torque value obtained from a signal corresponding to the torque has reached a predetermined torque value. A control unit controls the drive source to a predetermined driving state when the determination unit determines that the torque value has reached the predetermined torque value. The determination unit is arranged on the shaft.

The present invention relates to an electronic cigarette, comprising a cartridge tube, an atomization apparatus and a magnetic force generation apparatus. The cartridge tube comprises a cartridge tube body and a liquid guide member; a liquid storage cavity and an opening allowing cigarette liquid to flow are formed in the cartridge tube body. The liquid guide member covers the opening, and a liquid guide hole communicating with the liquid storage cavity is formed in the liquid guide member. The atomization device comprises a sealing mechanism and an elastic member. The sealing mechanism is oppositely matched with the liquid guide hole and can be absorbed by a magnet; the elastic member matches the sealing mechanism; the sealing mechanism can move back and forth between a first position close to the liquid guide hole and a second position distant from the liquid guide hole. The magnetic force generation device drives the sealing mechanism to move back and forth between the first position and the second position so as to open the liquid guide hole. Cigarette liquid flows out of the liquid storage cavity for use. The elastic member provides an elastic force for keeping the sealing mechanism at the first position in order to seal the liquid guide hole when the magnetic force exerted to the sealing mechanism is unavailable.

A damping force generation device for a vehicle includes a shock absorber including a cylinder and a piston. The shock absorber is coupled to a vehicle body, a wheel carrier, and the like at a rod part of the piston and the cylinder, respectively, and is configured to generate a damping force due to a flow resistance when oil passes through an orifice formed in the piston. Each of self-discharge type charge eliminators is fixed to a surface of a specific member being at least one of a component of the shock absorber or an auxiliary member connected to the component. The charge eliminator reduces positive electric charge that is charged to the specific member, to thereby reduce a charge amount of the oil.

The present invention provides a vehicle control device and method capable of ensuring steering accuracy. In a vehicle provided with a left-right pair of steered wheels for which the braking / driving forces can each be controlled, and a steering force generation device that generates steering force for the steered wheels and controls the steering angle of the steered wheels, this vehicle control device and method control the steering force and the steering reaction force from the steering force generation device by controlling the braking / driving force of each of the steered wheels on the basis of the lateral force acting on the steered wheels.

A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially inside or outside said coil and positioned at an angle relative to a direction of movement of an armature. Further, various recesses, indentations, chamfers, bevels, and / or depressions may be included to affect flux leakage, and / or force generation.

The invention discloses an integrated grating piezoelectric modulation closed-loop high-precision acceleration micro-sensor which comprises a shell. A light source, a grating, a piezoelectric ceramic component and an MEMS (micro-electromechanical system) sensing mechanism are arranged in the shell sequentially along a light path, the MEMS sensing mechanism comprises a mass block and a cantilever beam connected with the mass block, and one surface, facing to the grating, of the mass block is a light reflecting surface. The acceleration micro-sensor is further provided with a photoelectric detector, a signal processing module, a first electromagnetic force generation device, a second electromagnetic force generation device and a current driving module, the photoelectric detector is used for detecting light intensity of interfering beams which are formed by interference of beams reflected by the grating and beams reflected by the light reflecting surface, the signal processing module is used for computing corresponding acceleration signals according of signals of the photoelectric detector, the first electromagnetic force generation device is fixed at the bottom of the mass block, the second electromagnetic force generation device is positioned in the shell and matched with the first electromagnetic force generation device, and the current driving module is used for transmitting current to the first electromagnetic force generation device and the second electromagnetic force generation device, and is connected with the signal processing module.

A steering control device (200) is provided with a end-of-movement reaction force generation unit (an end reaction force control portion (20)). An end reaction force generating current i2 which act as return a handle toward a straight-ahead position is rapidly generated in the vicinity of an upper and a lower limit of a vehicle wheel steering range. For example, a reaction force motor (4) may be additionally commanded using a newly generated command current i2. Accordingly, an output torque of the reaction force motor (4) becomes proportional to a new command value in of an Equation in=i1+i2, where i1 is a current command of a reaction force control portion (5). As a result of configuring the end-of-movement reaction force generation unit is this manner, for example, it is possible to generate a virtual contact resistance force (a steering reaction force) for a steering angle θ without causing heat build-up, or the like, of a motor, when no physical limit (an end-of-movement of contact point) is provided for a rotation range of a steering wheel (handle).

A chair with an automatically movable back, having a support, and a seat and a back installed on the support. The chair comprises a base frame coupled to a lower surface of the seat in such a way as to define a space between the base frame and the seat; a horizontal movement frame coupled to an upper surface of the base frame to be moved forwards and rearwards, connected at left and right ends thereof to a back frame which in turn is connected with the back of the chair, and having on a lower surface thereof a follower which receives force required for forward and rearward movement; a vertical movement frame which has an upper surface which is connected to the lower surface of the base frame and a lower surface which is connected to the support, and which is coupled to the support such that the vertical movement frame can slide upwards and downwards with respect to the support; and rotation force generation means installed in the vertical movement frame to transmit rotation force generated by upward and downward movement of the vertical movement frame to the follower such that the horizontal movement frame can be moved forwards and rearwards.

The invention discloses an electrohydraulic forming method for formed sheet metal blank. The method includes pressing against the die blank by pressure generated from the liquid filled container; eliminating the pressure from the tool; generating a shockwave within the fluid for force generation so that the blank abuts against the die.