89results about How to "Reduce collision energy" patented technology

By appropriately selecting a command value or an actually measured value as the angular velocity used for friction torque calculation, friction compensation can be effective in both cases when actively operating according to the angular velocity command and passively operating, that is, when being pushed by an external force . Also, after a collision is detected, when the motor rotation direction is opposite to the collision direction, the position control is switched to current control so that the motor generates torque in the opposite direction to the motor rotation direction, thereby reducing the motor rotation speed and weakening the collision energy. Thereafter, when the motor rotation speed becomes the set value or lower, the mode is set to flexible control, thereby eliminating deformation of the speed reduction device or the like caused by the collision. On the other hand, when the motor rotation direction and the collision direction are the same, the position control is directly transferred to the flexibility control without going through the current control. By performing operations according to the collision force, it is possible to weaken the collision torque.

A developing device is provided with a developer conveying member in which a plurality of electrodes arranged on a substrate at a predetermined interval are coated with a surface protection layer, the developer conveying member being provided in a developing area that faces an image carrying body whose surface carries an electrostatic latent image, wherein developer is conveyed on the developer conveying member using a traveling-wave electric field that is formed by applying a polyphase voltage to the respective electrodes. The developing device is further provided with a supplying member for supplying the developer onto the developer conveying member, wherein (i) an effective electrode width Le of the respective electrodes in their width direction orthogonal to their arranging direction and (ii) a width Lt of a developer existing area on the supplying member, the width Lt being orthogonal to a direction of supplying the developer, are set so as to satisfy a relation of Lt<Le. This prevents the developer from entering wiring pattern areas outside of the electrodes on the developer conveying member, thereby surely preventing the scattering and the sticking of the developer in the areas.

A developing device is provided with a developer conveying member in which a plurality of electrodes arranged on a substrate at a predetermined interval are coated with a surface protection layer, the developer conveying member being provided in a developing area that faces an image carrying body whose surface carries an electrostatic latent image, wherein developer is conveyed on the developer conveying member using a traveling-wave electric field that is formed by applying a polyphase voltage to the respective electrodes. The developing device is further provided with a supplying member for supplying the developer onto the developer conveying member, wherein (i) an effective electrode width Le of the respective electrodes in their width direction orthogonal to their arranging direction and (ii) a width Lt of a developer existing area on the supplying member, the width Lt being orthogonal to a direction of supplying the developer, are set so as to satisfy a relation of Lt<Le. This prevents the developer from entering wiring pattern areas outside of the electrodes on the developer conveying member, thereby surely preventing the scattering and the sticking of the developer in the areas.

A side airbag device may include: an inflator mounted to a seat frame; a cushion covering the inflator and configured to be deployed by gas discharged from the inflator to protect a side portion of an passenger; and a tether mounted to the inflator and configured to enclose the cushion and reduce collision energy applied to the passenger.

The invention discloses a collision-proof charging pile for charging a new energy vehicle, which comprises a shell, wherein the top of the shell is fixedly connected with a rain-shielding top cover, four peripheries of the shell are correspondingly provided with an elastic bending plate, and the inner side center position of the elastic bending plate is elastically connected with the outer side wall of the shell through an air spring. In this invention, the cooperation of cushion and elastic steel plate is capable of absorbing and counteracting a first portion of the collision energy, by the cooperation of the first cushion spring and the air spring, the collision energy can be further absorbed and canceled, At that same time, the crossbar is forced to move and transmit the force to the connecting rod, As that piston block is move by the connecting rod, the force of the third cushion spring is compressed, and the collision energy is canceled again, and the collision energy can be reduced to the minimum through the cooperation of the series of structure, thereby effectively protecting the internal circuit structure of the charging pile and avoiding the occurrence of the secondary accident.

The invention discloses an automobile collision protection device. The automobile collision protection device comprises a base, a support plate, a telescoping mechanism and an energy absorption panel, wherein the base is fixedly arranged on a vehicle body; the support plate is connected with the base by the telescoping mechanism; the telescoping mechanism comprises two sliding plates, two first connecting rods and driving mechanisms; the two sliding plates are respectively arranged on the left side and the right side of a back plate surface of the support plate in a left-right sliding manner; the back ends of the two first connecting rods are respectively hinged to the left side and the right side of the base, and the front ends of the two first connecting rods are respectively hinged to the two sliding plates; the driving mechanisms are used for driving the two first connecting rods to swing so as to control the support plate to move back and forth; the energy absorption panel is connected with the front plate surface of the support plate by a plurality of energy absorption springs. According to the automobile collision protection device, the support plate and the energy absorption panel can actively extend forwards by virtue of the telescopic mechanism to expand a collision buffering area of an automobile, and collision energy can be absorbed by shrinkage of the whole device, so that the collision safety of the automobile is improved.

Energy absorbers particularly well suited for use in a collision between a vehicle and a pedestrian so as to reduce collision energy transmitted to the pedestrian and having a width w, a height h, a front wall a, a top wall c and a bottom wall d such that the height is between 0.8 w and 1.0 w; the thickness of the front wall (t-a) is between 0.06 w and 0.09 w; the thickness of the top wall (t-c) is between 0.03 w and 0.09 w; the thickness of the bottom wall (t-d) is between 0.03 w an 0.09 w; and the energy absorber is made substantially of a thermoplastic material having an elongation at break higher than 20% between −20° C. and +60° C. (measured according ISO 527-1 / -2); a yield strength between 30 and 40 MPa (measured according ISO 527-1 / -2); modulus of elasticity between 1000-1500 MPa (measured according ISO 527-1 / -2); and hardness Shore D between 50 ShD and 80 ShD (measured according ISO 868).

The invention relates to an energy absorption aluminum profile for a railway vehicle body and a manufacturing method thereof. The energy absorption aluminum profile comprises, by mass, 0.5%-0.7% of Si, 0-0.15% of Fe, 0.4%-0.6% of Mg, 0.2%-0.3% of Mn, 0-0.01% of Cu, 0.1%-0.2% of Cr, 0-0.01% of Zn, 0.04%-0.06% of Ti, 0.04%-0.1% of V, and the balance of Al. By adding the 0.04%-0.1% of V into the energy absorption aluminum profile, the columnar crystal structure of a cast ingot can be reduced, the cast structure can be refined, the effects of restraining recrystallization of deformed grains and growth of recrystallized grains can be achieved in the heat treatment and heat deformation processes of the alloy, the purpose of refining the profile structure is achieved, the strength, toughness, ductility and corrosion resistance of the profile are improved, and the energy absorption property of the profile is significantly improved.

A slide bearing for internal combustion engines, comprising a slide layer including a lubricant outer layer in which a solid lubricant is contained, and wherein the lubricant outer layer contains an element which is contained in the solid lubricant, at a maximum concentration of not less than 5 mass % in the lubricant outer layer, and at least a solid lubricant gathered particle is formed on a surface of the lubricant outer layer, the solid lubricant gathered particle being a particle of the solid lubricant formed by gathering a plurality of primary particles, the solid lubricant gathered particle having a long side of not less than 20 μm but less than 100 μm in terms of surface visual field of the lubricant outer layer.

Dust with various particle diameters entering a bypass passage, particularly, relatively large dust with a particle diameter of 100 to 200 μm or so, is reliably caused to collide with a first step-shaped part, a second step-shaped part and a plate-like member to be sufficiently decelerated and reach a flow rate detecting device with low collision energy. This can prevent the flow rate detecting device from being damaged by collision of dust. Furthermore, the placement position of the plate-like member is optimized to suppress air turbulence at a flow rate detecting part, which achieves a good balance between flow rate detection accuracy and dust tolerance.

The method discloses a method for etching a groove. In the invention, the etching is carried out in a reaction chamber, and the method comprises the a following main etching step implemented by two steps: 1, etching on the basis of the original process parameters; and 2, etching on the basis of the regulated process parameters. By adopting the method, micro grooves can be effectively eliminated to further reduce the RC delay.

The invention relates to the technical field of safety protection of coaches and particularly relates to a safe protecting method and a device for the rollover of a coach. The inclination angle of a coach body is sensed by an inclination sensor arranged at the gravity center of the coach body; when the inclination angle of the coach body of the coach exceeds a set clinical angle during driving, an instruction is transmitted to a compartment door ejecting mechanism arranged between a luggage compartment door and the coach body by the controller to open the luggage compartment door; the luggagecompartment door grounded ahead of the coach body absorbs a part of impact energy through a triangular structure consisting of a lower upright post of a coach body waist beam, a compartment door upright post hinged with the lower upright post of the coach body waist beam and a folding pull rod of which two ends are respectively hinged to the lower upright post of the coach body waist beam and thecompartment door upright post, so that the grounded deformation of a coach body structure is buffered and reduced and the function of protecting the living space of passengers is achieved. According to the safe protecting method and the device disclosed by the invention, a traditional structure of the coach body can be better utilized and the rollover resistance of the coach is improved by adopting an active mode.

A side airbag device may include: an inflator mounted to a seat frame; a cushion unit covering the inflator and configured to be deployed by gas discharged from the inflator to protect a side portion of an occupant; and a tether unit mounted to the inflator and configured to enclose the cushion unit. The cushion unit may include: a cushion deployment part mounted to the inflator and configured to be deployed by gas discharged from the inflator; a cushion passing part formed in the cushion deployment part so that the tether unit passes through the cushion passing part; and a cushion penetration part formed in an upper end of the cushion deployment part so that the tether unit penetrates the cushion penetration part.

The invention belongs to the technical field of high-power microwave (HPM), and discloses an HPM medium window for improving vacuum side power capacity. The surface of the HPM medium window is composed of a plurality of curved surface periodic structure units. The medium window is provided with a three-dimensional periodic function surface which is like wavy ripples on the sea level. According to the principle of restraining multipactor, electrons are restrained in a unit function curved surface structure, the multipactor electron track and transit time are changed under the action of the restoring force provided by the microwave electric field force, and the impact energy of the electrons on a function curved surface lateral wall is reduced and made to be smaller than a first intersecting point of a quadratic yield curve. Meanwhile, the electron transit time is far shorter than a microwave half period, and therefore multipactor is restrained on the function curved surface lateral wall.

The invention discloses an automobile bumper with a multilevel buffering device, which structurally comprises a collision energy absorption box and a lever iron, wherein the lever iron is connected with the collision energy absorption box which is in rigid connection with a chassis of an automobile. The collision energy absorption box comprises a box body with one open end, an energy absorption buffering block, an outer sleeve and an inner sleeve, wherein the energy absorption buffering block is arranged at the inner bottom end of the box body, and the inner sleeve is in slidable fit with one end of the outer sleeve which is slidably arranged in the box body. A compression spring is fittingly arranged outside the inner sleeve and positioned between the outer sleeve and the lever iron. By the aid of the lever iron, the compression spring and the absorption buffering block multilevel energy absorption device, damage of an automobile body caused by collision can be reduced and safety of the automobile and personnel can be improved by means of absorbing and converting collision energy through deformation.

A vehicle occupant knee protection apparatus for protecting the knees of an occupant when collision energy acts on a vehicle. The occupant knee protection apparatus comprises a knee protection member, a contact force detector, a controller, and a drive unit. The knee protection member is disposed in an opposable position to knees of an occupant seated in a vehicle seat. The contact force detector detects the contact force of the knees on the knee protection member. The controller performs control that reduces the contact force to a force control target value and that maintains the reduced value. The drive unit moves the knee protection member in the front / rear direction of the vehicle on the basis of an output signal from the controller.

The invention relates to the technical field of new energy, and discloses a new energy automobile charging pile capable of automatically taking up cables, which comprises an equipment main body; buffer pads are arranged on the two sides of the equipment main body; guide rods are fixedly connected to the ends, close to the equipment main body, of the buffer pads, and first spring rods are fixedly connected to the ends, away from the buffer pads, of the guide rods. According to the new energy automobile charging pile capable of automatically taking up wires, after charging is completed, a charging gun is placed in a clamping groove again; at the moment, the charging gun extrudes a contact block downwards, a switch assembly in a second spring rod abuts against the contact block, a circuit isclosed, an electromagnet is powered on, magnetism is enhanced, and a metal sliding block is attracted to slide upwards and abut against the electromagnet; a pawl synchronously moves along therewith and gradually gets away from a ratchet wheel, a coil spring gradually resets and drives the ratchet wheel to rotate anticlockwise, the ratchet wheel drives a winding roller to rotate synchronously, thewinding roller winds a cable, and the cable is prevented from being excessively exposed outside and being contaminated and damaged.

The present invention provides a simple method using aerosol deposition, for manufacturing a piezoelectric film that will simultaneously satisfy various characteristics required of a piezoelectric film. In the method, the piezoelectric film is formed on a substrate by ejecting an aerosol containing particles of a piezoelectric material onto the substrate so that the particles adhere thereto, and a second piezoelectric layer is formed on the first piezoelectric layer by conducting the ejection such that energy used for crushing the particles when the particles collide with the substrate is less than in the formation of the first piezoelectric film.

The invention provides a spring guide and a cushion device with good absorption characteristic capable of effectively suppressing the resonance vibration of a coil spring in the cushion device and effectively preventing the vibration generated by the noise of the coil spring. The approximately cylindrical spring guide is arranged between the coil spring and an outer shaft member. The coil spring houses a shaft portion of a damper set and arranged between the outer shaft member and an inner shaft member. In the damper set, the inner shaft member is fitted in the cylindrical outer shaft member slidably in an axial direction of the spring guide. Projecting portions projecting towards the shaft core direction are arranged on one end and another end of a main body . The invention also provided the cushion device with the spring guide. The vibration of the coil spring is effectively suppressed.

A longitudinal shaft assembly for a motor vehicle, comprising at least a first shaft and a second shaft, a ball-type constant velocity joint for connecting the first shaft to the second shaft and at least one central bearing for supporting the longitudinal shaft assembly with respect to a body of the motor vehicle.

A voltage-isolating passageway for providing high voltage isolation between a component maintained at high DC voltage and a component maintained at a substantially lower voltage is described. The voltage-isolating passageway incorporates a transverse magnetic field across its passageway, which reduces the potential energy of charged particles (e.g., electrons) passing through the passageway. The reduction in electron potential energy reduces the energy of collisions between electrons and molecules and therefore reducing the likelihood of avalanche ionization. The voltage-isolating passageway includes a passageway and at least two magnets. The passageway has two openings and the two magnets are positioned along opposite and exterior surfaces of the passageway wherein the first and second magnets impose a magnetic field in a transverse direction with respect to a lengthwise axis of the passageway. In addition, a semi-conductive coating can be applied to the interior passageway surface to help remove potential energy from the gas that comes in direct contact with the coating.

The invention discloses a shock-resistance new energy electric car charging pile. The shock-resistance new energy electric car charging pile comprises a shell body and a core structural element; a second oil cylinder is fixedly connected to the middle of the inner surface wall of the bottom of the shell body through a bolt, the portion, away from the second oil cylinder, of one side of a first piston penetrates through the shell body through a first piston rod and extends to the outer portion to be connected with a buffer plate part, the first piston rod pushes the first piston to move, the oil pressure is increased, along with gradual increasing of the oil pressure, a second piston pushes a second piston rod and the core structural element to ascend, at the same time, a damping spring isstressed and compressed, impact energy is absorbed and offset, the protection effect is further achieved, through the structure, when the impact force is quite large, the core structural element ascends and is away from the collision point, the inner structure of the element is effectively protected, structure damage is avoided, recycling is achieved, the sustainable development concept can be met, and the resource waste can be avoided.

The invention relates to the technical field of passenger car safety protection, in particular to a high-efficiency rollover preventing system for a passenger car. According to the high-efficiency rollover preventing system disclosed by the invention, the inclination angle of a car body is sensed by an inclination angle sensor arranged in the gravity position of the car body; in the travelling process of the passenger car, when the inclination angle of the car body exceeds a set critical angle, a command of opening baggage cabin doors is transmitted to a cabin door ejecting mechanism arranged between each baggage cabin door and the car body through a controller; and each baggage cabin door which touches the ground before the car body absorbs a part of impact energy in advance through a triangular structure consisting of a car body breast beam lower stand column, a cabin door stand column hinged to the car body breast beam lower stand column, and a folding pull rod of which the two ends are respectively hinged to the car body breast beam lower stand column and the cabin door stand column, so that the touchdown deformation of a car body structure is buffered and reduced, and the effect of protecting the living space of occupants is achieved. According to the high-efficiency rollover preventing system disclosed by the invention, a conventional car body structure can be better utilized, and the rollover preventing property of the passenger car is improved through an active manner.

The invention relates to an improving method for a dark spot in an accident at an exit ramp of an expressway based on retro-reflection illumination, wherein ramp grading speed-limit signs are arranged at sight through places in front of the starting point and the nose end of a transition section of a deceleration lane of the exit ramp; a main line single-layer linear induction sign and a ramp double-layer linear induction sign are arranged behind the nose end of the exit ramp; a lane edge line of the exit ramp deviates towards the inner side and reduces the width of a traffic lane, an edge line of a lane at the outer side is set to be a vibration edge line; raised road signs are arranged at the outer sides of a main line and a road edge line of the exit ramp from the end point of the deceleration lane, and a single-side anti-collision bucket is arranged at a guardrail next to the outer side of the ramp from the nose end of the exit ramp, so as to form a high-frequency vision information stream commonly; road-surface lateral deceleration marked lines are arranged in the heading direction of the exit ramp at an interval of 8-12m, so as to form an intermediate-frequency vision information stream commonly with road side linear induction signs; and road side vibration marked lines, anti-collision buckets and the guardrail form road side multi-level protection, and all safety facilities are made of high-strength reflecting materials. The improving method is suitable for realizing the speed limit for a downgrade ramp at an exit of the expressway (40-60km / h).

The invention relates to a mass-decoupling device for a motor vehicle, having: a mass-receiving element (10) and a mass object (11) accommodated therein, which mass-receiving element (10) and mass object (11) are point symmetrically formed and mounted opposite a body (36) of the motor vehicle; at least one guide means (13) that moveably mounts the mass-receiving element (10) and the mass object (11) accommodated therein along a longitudinal axis (L) of the vehicle; decoupling means (14) designed to decouple the mass-receiving element (10) and the mass object (11) accommodated therein from the body (36) of the motor vehicle; first energy-receiving means (15) designed to transmit kinetic energy of a movement of the mass-receiving element (10) and the mass object (11) accommodated therein to the body (36) of the motor vehicle in a predetermined time interval, said movement occurring along the longitudinal axis (L) of the vehicle, from a first position (P1) to a second position (P2); and second energy receiving means (16) designed to convert, at least partially, the kinetic energy of the movement of the mass-receiving element (10) and the mass object (11) accommodated therein along the longitudinal axis (L) of the vehicle into kinetic energy of a rotation of the mass object (11). The invention also relates to a corresponding method for decoupling mass for a motor vehicle.