497 results about "Normal load" patented technology

A sub-frame 11 of a vehicle, which is made by means of die casting into a substantially rectangular shape and attached to a front lower portion 14 of a vehicle body 13, includes: a C-shaped front sub-frame 15; and a C-shaped rear sub-frame 16, wherein a right and a left front beam members 65, 67, which are formed at a right and a left end portion of a front beam member 47 constituting the front sub-frame 15, and a right and a left beam rear members 96, 97, which are formed at a right and a left end portion of a rear beam member 53 constituting the rear sub-frame 16, are joined to each other, and flat portions 113, 114 are formed in the right and the left front beam members 65, 67 so that the flat portions can be start points of plastic deformation of the sub-frame 11 when a load, which is heavier than a normal load, is given to the sub-frame 11 in the longitudinal direction.

An arc fault circuit interrupter (AFCI) detects arc faults by identifying the various signature patterns of arc fault noise while rejecting arc mimicking noise from normal load phenomena.

A hybrid propulsion system for powering vehicles such as class 8 DOT classified semi-tractor trucks under normal load conditions and at highway speeds comprises an internal combustion engine, an AC generator powered by the engine, DC battery packs, an AC/DC controller, and an AC electric motor driving the drive train of the vehicle. The AC generator and the DC battery packs provide input to the AC/DC controller, which, in turn, converts the DC input from the DC battery packs via a DC circuit to AC so that the output from the AC/DC controller to the electric motor is AC for powering the vehicle. The DC battery packs may comprise thin plate flooded lead acid cells and may be connected in series, in parallel or a combination thereof. Vehicles may be retrofitted to incorporate the propulsion system.

The motor vehicle seat of a motor vehicle comprises an underframe and a seat carrier that is height-adjustably connected to the underframe through rear oscillating cranks. A catch device is directly assigned to one of the two rear oscillating cranks. A non-rotatable tie bar joins the two rear oscillating cranks so that they are parallel when the vehicle seat is subjected to normal load. A retaining device has a sector gear firmly connected to the other one of the two rear oscillating cranks. An engaging piece which is movably disposed on the seat carrier or on the underframe, is provided with teeth devised for engagement with the sector gear and is disengaged from the sector gear as long as the vehicle seat is subjected to normal load. When the associated motor vehicle is subjected to a crash load an actuator is activated and causes the engaging piece to move into positive mesh with the sector gear. It is activated both for a positive and for a negative acceleration of the vehicle seat in the event of an accident. The teeth of the sector gear are configured in such a manner that their flanks, which are located on either side thereof, are oriented substantially radially relative to the orientation of said sector gear so that, during an accident situation, the sector gear is locked in the two directions of rotation upon engagement of the engaging piece.

A power delivery system for an electric vehicle provides efficient power management for either continuous or intermittent high-performance operation, using a boost stage and an on-board charging circuit. A main battery, configured as a high-capacity power source, supplies power to the electric motor under normal load conditions. An auxiliary boost battery assists the main battery in supplying a high-level current at a higher discharge rate thereby causing the motor to operate in a high-performance drive mode. A charging circuit recharges the boost battery from the main battery during operation of the motor. The charging circuit also maintains a charge balance between the boost battery and the main battery when the two batteries have different chemistries. In one embodiment, participation of the boost battery in powering the electric motor can be controlled automatically according to sensed changes in the load. In another embodiment, power management can be based on timed intervals.

The invention provides a method for determining normal contact rigidity of a loaded joint part by considering the interaction effect of micro-bulges on rough surfaces. The method comprises the following steps of: measuring microstructure data of contact surfaces, acquiring micro-profile data of contact surfaces of the joint part by using a three-dimensional profile measuring instrument, extracting the position coordinate of each micro-bulge peal in the length direction, and simulating micro-bulge forms of the rough surfaces; building a relation between a normal load and the contact rigidity; computing fractal parameters of the contact surfaces, theoretically computing the extracted data by using a structure function method, and acquiring fractal dimensions and scale coefficients of the surfaces; and according to the above steps, putting each parameter value of the material to finally compute the normal contact rigidity of the joint part. The new method for determining the normal contact rigidity of the joint surfaces provided by the invention overcomes the defect that the traditional method based on a fractal theory is inaccurate in computation result in the case of heavy load, and has the advantages of strong reliability, being close to actual situation, small computation amount and improved computation efficiency.

A thrust bearing 11 for use with a shaft 13 having a collar 15 mounted the shaft 13 and rotatable therewith has a base ring 17, a series of shoes 19 positioned on the base ring 17, and a compressible resilient spacing member 29 positioned between the base ring 17 and a housing 31 for the thrust bearing 11. The spacing member 29 supports the thrust bearing 11 when the shaft 13 is rotating during no-load operating conditions, as well as dampens the forces placed on the thrust bearing 11 by the shaft 13 when the shaft 13 is rotating during no-load conditions. The spacing member 29 is sufficiently stiff that it supports the thrust bearing 11 when the shaft 13 is rotating under no-load conditions, but is sufficiently compressible to be compressed to the extent that the gap 33 between the base ring 17 and the housing 31 is eliminated due to the forces placed on the thrust bearing 11 by the shaft 13 bringing the base ring 17 into contact with the housing 31 during normal load operating conditions.

A switching power supply device that includes a feedback terminal to which a feedback signal according to a load state is input, and a comparator which compares a terminal voltage of the feedback terminal with a reference voltage and determines whether the load state is a normal load state or a light load state. The switching power supply device also includes pull-up resistors which are connected to the feedback terminal, a switch element which switches resistance values of the pull-up resistors according to the change of the load state, and a switch element which switches the resistance values of the pull-up resistors according to whether the input voltage is high or low.

A portable type car outer cover component deforming stiffness test device which includes a carline and a beam of the first slid fixed on the cowl carline and it can drive the first slid moving up and down by the first screw stem so further drive the beam moving up and down and the second screw stem drives the second slid moving left and right; the load-on measuring mechanism connects with the second slid by the driving adjustment mechanism which includes the body, the electric engine set in it, the gear driving equipment, lead screw component, load-on light bar, and the displacement sensor, the pressure sensor. The test device of invention adopts the assemblage frame mechanism and it can adjust randomly for the experimental point of different cover component in the three-dimension space and it can measure the stiffness of cover component through applying the normal load to the experimental point also gives the load-displacement curve of the experimental point according it to judge the ability of outer cover component deforming stiffness, stability, and portable selection material of the car outer cover component.

A transducer is featured as fixing one end of suspension arm and another end set with frictional head, forming both of vertical and horizontal bent beam by elastic body and sticking foil gauge on the elastic body to make it full bridge circuit. In frictional test, strain deformation of horizontal bent beam is caused by normal load and strain deformation of vertical one is caused by only frictional force so the load and frictional force can be measured out through strain detection.

Overload protecting operation is performed by controlling the current peak value of a switching device 1 through the use of a comparator 8, a NAND circuit 5, and so on according to variations in feedback current being input to a feedback signal control circuit 11, internally setting the overcurrent protection of switching device 1 through the use of a clamp circuit 12, charging a capacitor 34 when having fallen below a specified current smaller than current required for the overcurrent protection for a fixed time period, and detecting rise in voltage VOL at the capacitor 34 to a constant voltage to stop switching operation. By achieving the overload protection under normal load and the overcurrent protection against peak load in a single switching power supply unit, problems such as the complexity of the unit and an increase in the element count of the control circuit are solved.

A transformer has a primary winding connected between a pair of dc input terminals via a voltage regulator switch, and a secondary winding connected between a pair of dc output terminals via a rectifying and smoothing circuit. The dc output voltage being applied to the load from the dc output terminals is detected, and the detector output voltage dually divided, to provide two feedback signals of different magnitudes. One of these feedback signals is used by a mode selector circuit to provide a mode select signal for causing the voltage regulator switch to be driven continuously under normal load, and at intervals under light load. Delivered to a conduction terminator circuit, the other feedback signal is thereby used to provide conduction terminator pulses for terminating conduction through the voltage regulator switch. A conduction initiator circuit responds both to the mode select signal and to a signal indicative of the conduction and nonconduction of the voltage regulator switch, to initiate conduction therethrough upon lapse of a preassigned length of time following the end of the previous conducting period. Although the nonconducting periods of the voltage regulator switch are thus fixed, its conducting periods are variable with the results of comparison of a switch current detect signal and the second recited feedback signal.

The invention discloses a rock and earth mass in-situ direct shear test device with an automatic data acquisition system and a rock and earth mass in-situ direct shear test method and relates to a rock mechanical test technology. A rock and earth mass test sample can be subjected to shear failure on a proposed shear surface by applying a normal load and a horizontal shear force to the test sample, and the automatic data acquisition system is used for recording relevant data such as shear stress and displacement in a test process. The test device comprises the test sample (00), a shear box (10), a reaction system (20), a perpendicular pressure system (30), a force transmission system (40), a tangent pressure system (50), a roller row (60) and an automatic data acquisition system (70). By adopting strain control, the rock and earth mass in-situ direct shear test device is high in measurement precision and high in stability; the rock and earth mass in-situ direct shear test device is provided with the automatic data acquisition system; a spoke sensor is used through stress control, so that stress can be precisely measured; all components can be detached, so that the rock and earth mass in-situ direct shear test device is convenient to transport and mount.

A structure for use in industrial fabrics such as paper machine clothing and engineered fabrics is disclosed. The structure includes axially and radially elastic hollow members, and relatively inelastic yarns in various patterns. The structure has a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load.

In the system control module of the main processor of the communication system is set an exception processing module for supporting the functions of exception detection, exception handling, exceptingrecovery, exception strategy control and exception information storage of system processor, and in every application program module a detection point unit is set for supporting exception detection and exception recovery. The adoption of said invention can make the communication system normally and better work under the condition of that its normal load is less than 70%, and has the great significance for debugging system and finding latent error.

The invention provides a process and a device utilizing pressure of natural gas to partially liquefy the natural gas. The principle of the process and the device is that pressure energy of high-pressure natural gas generated during pressure regulation of a natural gas pressure regulation station is fully utilized, obtained cold quantity is used for liquefying part of the natural gas in pipe networks through the expansion refrigeration technology, and the value of the natural gas is greatly improved. By arranging a recycle gas circuit, the shortcoming of poor adaptability of variable working conditions of the expansion refrigeration technology is overcome, and variable load adaptability of the device is remarkably improved. In addition, when the device works with normal load, work energy consumption of a unit product approximates zero, and energy required by liquefaction completely comes from the pressure energy between a high-pressure pipe network and a low-pressure pipe network.

A method for automatically determining an avoidance maneuver in an automatic collision avoidance system of an aircraft. A maximum kinematic acceleration envelope is determined by determining a multitude of avoidance maneuver angle kinematic acceleration pairs in a kinematic acceleration plane, and interpolating gaps between points, thus creating a curve. The curve is called maximum kinematic acceleration envelope. The curve may also be approximated by an analytical expression. An adjusted kinematic acceleration envelope is formed in the plane by forming a new envelope. The new envelope at each point laying closer to or at the same distance from an origin as the points of the maximum kinematic acceleration envelope and such that there is only one value of the kinematic acceleration a for a given avoidance maneuver angle. An avoidance maneuver angle is received for which a suitable bank angle and a suitable normal load is to be determined. Determining The magnitude of the kinematic acceleration a corresponding to the adjusted kinematic acceleration envelope for the avoidance maneuver angle is determined by reading the envelope curve, or if the curve is an analytical expression, calculating the curve by using the analytical expression. The normal load is determined based on the kinematic acceleration, and the avoidance maneuver angle. The bank angle is determined based on the kinematic acceleration and the avoidance maneuver angle.

Thermoelectric devices with interface materials and methods of manufacturing the same are provided. A thermoelectric device can include at least one shunt, at least one thermoelectric element in thermal and electrical communication with the at least one shunt, and at least one interface material between the at least one shunt and the at least one thermoelectric element. The at least one interface material can comprise a plurality of regions comprising a core material with each region separated from one another and surrounded by a shell material. The interface material can be configured to undergo deformation under (i) a normal load between the at least one shunt and the at least one thermoelectric element or (ii) a shear load between the at least one shunt and the at least one thermoelectric element. The deformation can reduce interface stress between the at least one shunt and the at least one thermoelectric element.

A dimmer control system has a communication control loop that connects a master unit in series with a plurality of remote units, and it is superimposed in series on the dimmer load line so as to allow two-way communication between the master unit and remote units without affecting the operation of the load. Communications from the master to the remote units are encoded in loop current fluctuations, whereas communications from any remote to the master unit are encoded in loop voltage fluctuations. The master unit has a switched power supply, for use during normal LOAD ON operation, in tandem with a capacitive power supply, for use during LOAD OFF operation of the control units so as to minimize hum. The master unit power supply circuit provides an output rail voltage comprised of a reference voltage for the load superimposed with a control loop voltage for the voltage drop across the series-connected remote units. The master unit has a POWER OFF detection circuit and a non-volatile memory for storing system status information, so that when power is restored, the system can be restored to its former power level. The switch units are formed with a cover frame mounting a switch plate on a hinge axis allowing ON/OFF movement of an opposing side thereof. An array of LED light pipes is mounted in the switch plate aligned with the hinge axis, in order to minimize displacement of the light pipes during actuator movement.

A dimmer control system has a communication control loop that connects a master unit in series with a plurality of remote units, and it is superimposed in series on the dimmer load line so as to allow two-way communication between the master unit and remote units without affecting the operation of the load. Communications from the master to the remote units are encoded in loop current fluctuations, whereas communications from any remote to the master unit are encoded in loop voltage fluctuations. The master unit has a switched power supply, for use during normal LOAD ON operation, in tandem with a capacitive power supply, for use during LOAD OFF operation of the control units so as to minimize hum. The master unit power supply circuit provides an output rail voltage comprised of a reference voltage for the load superimposed with a control loop voltage for the voltage drop across the series-connected remote units. The master unit has a POWER OFF detection circuit and a non-volatile memory for storing system status information, so that when power is restored, the system can be restored to its former power level. The switch units are formed with a cover frame mounting a switch plate on a hinge axis allowing ON/OFF movement of an opposing side thereof. An array of LED light pipes is mounted in the switch plate aligned with the hinge axis, in order to minimize displacement of the light pipes during actuator movement.

An extended forward tow, single rail saddlemount or tow bar is disclosed. The tow bar allows a first towing truck to mount a second truck, facing forward, behind the first truck, in order to tow the second truck. The tow bar allows the towed truck to face forward during transport, thus allowing for normal loads and stresses of movement on the towed truck, rather than the much higher high wind loads and unusual stresses imposed by a rear-ward facing tow. The saddlemount is also designed to minimize the required vertical rise on the towed truck, which also avoids additional stresses during loading and unloading onto the towing truck. Lower stress is achieved by using a pivot pin nearer the towed truck rather than the usual pivot pin or king pin on the towing truck.

The invention discloses a dynamical model modeling method of vehicle driven on mountainous road, for solving the technical problem in the current vehicle dynamical model modeling method that has bad adaptability caused by a plane driven vehicle. According to the technical solution, the vehicle dynamical model driven on the mountainous road is built by means of an operation dynamical model and a tire model of the vehicle, a longitudinal velocity and a normal load of each vehicle wheel; the stability of the model is analyzed and the traffic safety of the vehicle on the mountainous road is evaluated according to the built vehicle dynamical model, the acquired vehicle driving state data and the road geometrical information. In the model, the slope angle of the mountainous road, the side rake angle of the road surface while turning and the dynamic change of the normal load of each tire while turning are considered so that the invention reduces or prevents the traffic accident and increases the driving safety of the vehicle on the mountainous road.

A sprinkler includes a riser, an impeller mounted in the riser, and a nozzle rotatably mounted at an upper end of the riser. A drive assembly including a reduction gear train couples the impeller and the nozzle. A clutch in the drive assembly includes a clutch member having an axis of rotation that provides a positive drive connection under a normal load and axially displaces and slips under an excessive load.

A series and parallel combined dual power system operates as a series combined power system, or as a parallel combined power system; the power from an engine directly drive the load; the system engages in the operation as the series combined power system incase of a light load; the load is driven by the engine in case of a normal load; an optional rechargeable device is adapted to the system; either or both of a primary and a secondary dynamo-electric units functions as a motor on the power from the rechargeable device to jointly drive the load with the power from the engine; and functions to provide power drive in case of a light load.