771results about How to "Reduce shock load" patented technology

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The present invention provides a method for controlling a selectable one-way clutch, or SOWC, such that engine braking is enabled. Additionally, the method of the present invention is adapted to provide engine braking using the SOWC such that a separate clutch is not required. The method is initiated by identifying a downshift command. After the downshift command has been identified, the off-going clutch associated with the current speed ratio is released. Engine speed is preferably increased to bring the relative speed across a selectable one-way clutch to approximately zero. Thereafter, the selectable one-way clutch is engaged such that is capable of holding torque in both directions. As the selectable one-way clutch can hold torque in both directions, torque is transmittable from the transmission to the engine and engine braking is thereby enabled.

A seating system to be easily attached to an existing dynamic balancing personal vehicle is provided. The seating system allows both seated and standing use of the dynamic balancing personal vehicle, and provides for activation of rider present sensors contained in the foot platform of the dynamic balancing personal vehicle by the weight of the rider on the seating system. The seating system also provides for secure transfer of rider forces into the attached dynamic balancing personal vehicle, as well as shock attenuation, rider height adjustment, and rider center of gravity trimming. Alternatively, a dynamic balancing transportation system incorporating a flexible seating system for a rider is provided.

An air conditioning system for cooling or heating an air, and for feeding the heated or cooled air to predetermined portions is characterized by comprising: a first circulating circuit for circulating a first heating medium; a second circulating circuit for circulating a second heating medium; a control unit for controlling the heat for executing heat exchange between the first heating medium and the second heating medium to flow through either the heat exchanger or the first heat storing device. Moreover, an air temperature is controlled by heat of the second heating medium.

A landing shock absorbing device 18 provided in a foot mechanism 6 of a leg of a robot comprises an inflatable and compressible bag-like member 19 (a variable capacity element) on a bottom face side of the foot mechanism 6. The bag-like member 19 is constructed of an elastic material such as rubber. Air in the atmosphere can flow into and out of the bag-like member 19 by inflow / outflow means 20 provided with a solenoid valve 27 and the like. In a landing state of the foot mechanism 6 and in a state immediately after the foot mechanism shifts from the landing state to a lifting state, the solenoid valve 27 is closed to maintain the bag-like member 19 in a compressed state. Furthermore, during the bag-like member 19 in the inflating state during the lifting state of the foot mechanism 6, by controlling timing when the solenoid valve 27 is switched from a valve opening state to a valve closing state, a height of the bag-like member 19 in a compression direction is controlled to be a height suitable for a gait type of the robot. Thereby, posture stability of the robot can be secured easily while reducing a impact load in the landing motion of the leg of the legged mobile robot, and further, a lightweight configuration can be achieved.

A bottom hole assembly has a drill bit and an under-reamer on the up-hole side of the drill bit. In one aspect, the assembly further has a compliant element linking the drill bit to the under-reamer, the compliant element allowing displacement of the drill bit relative to the under-reamer in the axial direction of the assembly. In another aspect, the assembly further has a sensor element which is arranged to measure the weight-on-bit and / or the applied torque of the drill bit, and a transmitter for transmitting the weight-on-bit and / or applied torque measurements to the surface.

The invention relates to a megawatt wind generating set combination control policy. When the wind speed of a wind generator fluctuates at rated wind speed, a torque control policy and feather control policy simultaneously remain in operation state, so as to realize undisturbed switching between a feather PID controller and a torque PID controller. The invention makes the best of the integral saturation characteristic of PID algorithm, so that switching between the torque PID controller and the feather PID controller is smooth and sensitive, mutual interference between the feather controller and the torque controller in the previous switch mode switching process while only one controller is ensured to operate at the same time, drastic fluctuation of wind generator power when the wind speedfluctuates at the rated wind speed is avoided, further load impact is reduced, electric energy quality is improved, reliability of the wind generating set is improved, and operation performance of the wind generating set is improved.

The invention relates to an intelligent charging method for electromobiles, comprising the following steps: introducing factors, such as electrical load factor of an electric network, identification charging time, electromobile battery states and the like on the basis of a common charger; automatically and optimally calculating the current charging policy for the whole electromobile; and automatically regulating charging power and charging time so as to achieve the design targets of safe charging (reducing impact on network load), economic charging (minimizing charging cost) and service life extension of the battery. The invention comprises an EC (Economic Charging) mode for maximizing charging quantity in the low power period of electric network, and a FC (Fast Charging) mode for fast charging the battery at allowable maximum charging power during initial charging.

The invention relates to a transmission arrangement for controlling a force of a translation, the transmission arrangement comprising a drive collar (13) connectable to a translative drive means (11) and prevented from rotating with respect to a ground (12) of the drive means (11), a flange face of the drive collar (13) bearing against a mating flange face of a friction collar (20), the friction collar (20) slidable in longitudinal direction and rotationally constrained by engagement in a cam track (12.3), another flange face of the friction collar (20) bearing against a mating flange face of a plunger (8), the plunger (8) slidable in longitudinal direction and prevented from rotating.

A strong, lightweight, impact resistant helmet system protects the wearer from impact injury and minimizes bodily injury to other players brought into contact therewith during blocking and tackling events. Weight reduction is achieved by reinforcing inner and outer surfaces of the helmet shell with long length, high strength fibers. Orientation of the fibers is such that the fiber lengths are aligned generally in the direction of tension and compression forces imposed on the helmet surface during impact. This reinforcement geometry permits use of a thin helmet shell. Efficient impact absorption by the helmet shell is accomplished by limiting the bend curvature produced at the impact location. The bend curvature reduction increases the contact area between the helmet shell and a pliable padded inner helmet made from energy absorbing polymeric foam disposed within the helmet shell in contact with its inner surface. The pliable padded inner helmet rests on the wearer's head, held in place by an attachment mechanism associated with the helmet shell. Energy is absorbed when the inner surface of the helmet shell contacts and compresses the inner helmet. The reduced bend curvature of the helmet shell spreads impact forces over a large area, and the impact load experienced by the wearer is decreased.

A bottom hole assembly has a drill bit and an under-reamer on the up-hole side of the drill bit. In one aspect, the assembly further has a compliant element linking the drill bit to the under-reamer, the compliant element allowing displacement of the drill bit relative to the under-reamer in the axial direction of the assembly. In another aspect, the assembly further has a sensor element which is arranged to measure the weight-on-bit and / or the applied torque of the drill bit, and a transmitter for transmitting the weight-on-bit and / or applied torque measurements to the surface.

The invention provides a method for controlling a temporary flush type supersonic velocity wind tunnel with an ejector function. The method includes that when the wind tunnel is started, firstly, the total pressure of a gas collection chamber of an ejector is adjusted to be working total pressure, then the total pressure of a stable section is adjusted to be a running total pressure value of a wind tunnel test, and then the ejector is closed for carrying out the wind tunnel test; and after specified testing items are finished, the total pressure value of the stable section maintains the same, the ejector is started to adjust the total pressure of the gas collection chamber to be a working total pressure value in a closed-loop mode, then gas flow is cut off, after the total pressure of the stable section is reduced to a preset cutoff total pressure value, the ejector is closed, and then a whole air-blowing testing process is finished. Through the method for controlling the temporary flush type supersonic velocity wind tunnel with the ejector function, the impact load in a start-up process of the wind tunnel and the impact load in a cutoff process of the wind tunnel can be reduced effectively, safety of models, a balance and a wind tunnel system can be guaranteed, requirements of the balance on strength and rigidity in a designing process of the balance can be effectively reduced, sensitivity of the balance can be improved, and the accuracy of the measurement of the balance and the quality of testing data can be improved.

The present invention provides a method for controlling a selectable one-way clutch, or SOWC, such that engine braking is enabled. Additionally, the method of the present invention is adapted to provide engine braking using the SOWC such that a separate clutch is not required. The method is initiated by identifying a downshift command. After the downshift command has been identified, the off-going clutch associated with the current speed ratio is released. Engine speed is preferably increased to bring the relative speed across a selectable one-way clutch to approximately zero. Thereafter, the selectable one-way clutch is engaged such that is capable of holding torque in both directions. As the selectable one-way clutch can hold torque in both directions, torque is transmittable from the transmission to the engine and engine braking is thereby enabled.

The invention relates to a charging control method for an energy-storage charging station. The method comprises the following steps: receiving a charging request from a vehicle; calculating current total power demand of the energy-storage charging station; judging whether the total power demand is higher than current load capacity of a power distribution network or not; controlling the energy-storage charging station to enter a pure-power-grid power supplying mode if the total power demand is not higher than the current load capacity of the power distribution network, and supplying power to a charging terminal and an energy storage system in the energy-storage charging station by the power distribution network; judging whether the current load capacity of the power distribution network is higher than a minimum load threshold or not if the total power demand is higher than the current load capacity of the power distribution network; judging whether the electric quantity of the energy storage system in the energy-storage charging station is greater than a first electric quantity or not if the current load capacity of the power distribution network is higher than the minimum load threshold; controlling the energy-storage charging station to enter a partial-dependency power supplying mode if the electric quantity of the energy storage system is greater than the first electric quantity, and supplying power to the charging terminal in the energy-storage charging station jointly by the energy storage system and the power distribution network. The charging control method for the energy-storage charging station has the advantage that the load impact on the power grid during charging can be effectively lowered.

Disclosed is a self-adaption claw mechanism of a spatial on-orbit service robot. The self-adaption claw mechanism is composed of a self-adaption claw, a motor, a transmission mechanism of the motor and a base part. The self-adaption claw is used for achieving the function of on-orbit target object capturing. The motor and the transmission mechanism of the motor are used for transmitting torque, and the motor provides active torque. The base part is used for maintaining the relative positions of all the parts of a system. The self-adaption claw mechanism has adaptivity, so that grabbing modes can be selected in a self-adaption mode according to the shapes of target objects, and the universality is strong. The claw mechanism has auto-stability, and after the claw mechanism makes contact with the target objects, the post grabbing process is prone to self-stabilization due to the fact that a torsion spring which has the effect of adjusting the torque in a passive mode is adopted. The active and passive composite driving design with the single motor and the torsion spring combined is adopted in the mechanism, so that control strategies are simplified, and impulsive loads can be effectively buffered. The self-adaption claw mechanism is applied to the on-orbit robot, and greatly improves the task executing efficiency.

The invention relates to a first-child-stage parachuting-recovery carrier rocket. The first-child-stage parachuting-recovery carrier rocket is combined by two stages of rockets and comprises a recovery system arranged in a shell of a first-child-stage rocket, wherein the recovery system comprises a speed reducing device and a buffering device; the speed reducing device is arranged at the position close to the interstage section of the shell and comprises a supporting frame connected with the inner wall of the shell; a parachuting device is arranged on the supporting frame and is used for reducing the speed of the separated first-child-stage rocket in the falling process; the buffering device comprises two buffering airbags, one buffering air bag is arranged at the position close to the interstage section, the other buffering airbag is arranged at the position close to the tail section, and the two buffering airbags are used for buffering the first-child-stage rocket in the landing process. The first-child-stage parachuting-recovery carrier rocket has the advantages that the first-child-stage rocket can land smoothly without damage under the common action of the buffering device and the speed reducing device, so that non-damage recovery of the first-child-stage rocket can be realized, and the first-child-stage rocket can be secondarily utilized, so that the launching cost can be reduced.

There is provided a front vehicle body structure. The structure includes a front-side frame which is disposed on each side of a power unit in a vehicle width direction, and extends in a fore-and-aft direction; and a load-transfer member disposed outside in the width direction, near a front-end of the front-side frame, a rear end of the load-transfer member being fixed to a certain position of a outer lateral side of the front-side frame in the width direction, the certain position being located forwardly of a center of the power unit in the fore-and-aft direction, a front-end of the load-transfer member being disposed forwardly and outwardly of the rear end. A load to the front-end of the load-transfer member in a rearward direction of the vehicle causes a vicinity area of the fixed position to be displaced in a direction in which the vicinity area approaches the power unit.

The invention discloses an independent suspension system. Two suspension oil cylinders are arranged between wheel edges of wheels on two sides and a frame respectively, and a steering mechanism drives the wheels on the two sides to perform steering. Two upper V-shaped swing rods and two lower V-shaped swing rods are arranged corresponding to the wheels on the two sides. Rod connection end portions of the two upper V-shaped swing rods are hinged to the upper portions of the wheel edges of the wheels on corresponding sides through spherical hinges respectively, and rod separation end portions of the two upper V-shaped swing rods are hinged to fixing members fixed below the frame along the lateral direction. Rod connection end portions of the two lower V-shaped swing rods are hinged to the lower portions of the wheel edges of the wheels on corresponding sides through spherical hinges respectively, and rod separation end portions of the two lower V-shaped swing rods are hinged to the fixing members fixed below the frame along the lateral direction. By means of the independent suspension system, possible frustrating effects caused by the suspension oil cylinders can be avoided, mutual independent motion of the wheel on the left side and the wheel on the right side can be achieved reliably, adhesion conditions of the ground are fully utilized, and control stability of the complete machine is improved. On the basis, the invention further comprises a crane with the independent suspension system.

A landing shock absorbing device 18 disposed in a foot mechanism 6 of a leg of a robot, wherein an inflatable bag-like member 19 (a variable capacity element) is provided at a ground-contacting face side of the foot mechanism 6. The bag-like member 19 is constructed of an elastic material such as rubber and has a restoring force. An interior portion of the bag-like member 19 is communicated with the atmosphere side through a flow passage 20. During a landing motion of the leg, the bag-like member 19 makes contact with the ground to be compressed, and the air in the interior portion thereof flows out into the atmosphere through the flow passage 20, so that its outflow resistance is generated. Accordingly, a landing shock is reduced. In a lifting state of the leg, the restoring force of the bag-like member 19 allows the bag-like member 19 to be inflated while the air flows into the interior portion thereof. An impact load during the landing of the leg of the legged mobile robot may smoothly be reduced in a light-weight configuration.

A landing shock absorbing device 18 disposed in a foot mechanism 6 of a leg of a robot, wherein an inflatable bag-like member 19 (a variable capacity element) is provided at a ground-contacting face side of the foot mechanism 6. The bag-like member 19 is constructed of an elastic material such as rubber and has a restoring force. An interior portion of the bag-like member 19 is communicated with the atmosphere side through a flow passage 20. During a landing motion of the leg, the bag-like member 19 makes contact with the ground to be compressed, and the air in the interior portion thereof flows out into the atmosphere through the flow passage 20, so that its outflow resistance is generated. Accordingly, a landing shock is reduced. In a lifting state of the leg, the restoring force of the bag-like member 19 allows the bag-like member 19 to be inflated while the air flows into the interior portion thereof. An impact load during the landing of the leg of the legged mobile robot may smoothly be reduced in a light-weight configuration.

The hoist mechanism braking system for crane includes mainly a work brake on the high speed shaft of the speed reducer in the mechanical transmission chain, a hydraulic safety brake installed on the winding drum flange, and an electric control system comprising industrial control computer or programmable controller and control circuit. Normally, the safety brake is always in power-on state after the crane is powered on and is turned off in case of failed power supply system of the crane or failed hoist mechanism. The present invention features that in case that the hoist mechanism fails, the detection element detected signal will be fed to the control system and the control system outputs some signal to control the work brake to shut off first and the safety brake to shut off after some time delay. Or, in emergency, the throttle valve in the safety brake is utilized to make the safety brake to lag shut off. The present invention reduces the impact load of shut safety brake on the mechanical transmission chain, decreases the damage of parts and ensures safety.

An impact load reduction structure includes a battery frame, a load reduction frame, and a load absorber. The battery frame is fixed to a vehicle body frame of an electrically-powered vehicle and supports a battery. The load reduction frame extends in a front-rear direction on a front side of the battery frame and is disposed in a substantially same plane as the battery frame. The load absorber is disposed between the load reduction frame and the battery frame and absorbs an impact load to be transmitted from the load reduction frame to the battery frame.

The invention relates to a pharmaceutical wastewater technology using microelectrolysis-Feton-EGSB (expanded granulate sludge bed)-A / O (anaerobic / aerobic)-BCO (biological contact oxidization)-BAF (biological aeration filtration)-coagulation treatment. High-concentration pharmaceutical wastewater is sequentially sent into an oil separation tank, a conditioning tank, a microelectrolysis reaction tank, a Feton catalytic oxidation tower, a horizontal flow type primary settling tank, a comprehensive conditioning tank, a hydrolysis acidifying tank, the EGSB, an A / O tank, a two-stage BCO tank, a secondary settling tank, a BAF tank, a coagulation tank, an air floating tank and a final settling tank to be treated, and then is drained after the standard is reached. The technology has the advantages that the technique is matured, the treatment effect is stable, and the anti-impact ability is strong; after the pharmaceutical wastewater is treated by the combined technology, the quality of drained water can reach the class-one standard of Comprehensive Drainage Standard of Wastewater (GB8978-1996).

In a ball screw device, a ball screw nut is rotated, causing a screw shaft to rectilinearly move in the axial direction, and the limit of the movement of the screw shaft is determined by a stopper. The ball screw device includes a hollow shaft that rotates together with the ball screw nut and in which the screw shaft is movably fitted. The hollow shaft is provided with a small diameter portion that exerts a dragging force on the screw shaft before the screw shaft reaches the limit, and a buffer layer is formed on a tip portion of the screw shaft.

A lift system is coupled between a work platform and a mast on a mast lift. The lift system includes at least one lifting rope connected between the work platform and the mast via an idler roller and a hoist drum connected to the work platform. The idler roller is displaceable between an engaged position and a disengaged position based on an amount of tension on the lifting rope. A spring is connected to the idler roller and urges the idler roller toward the engaged position. A carriage latch assembly includes a carriage latch hook coupled with the idler roller and a pin secured to the mast. When the idler roller is disposed in the engaged position, the carriage latch hook is engageable with the pin.