Abstract: A method of generating a discretization grid for a finite-difference simulation capable of simulating an object with a complex cross-sectional configuration accurately is disclosed. The method includes the step of generating grid through each vertex of the polygonal figure representing the cross-sectional configuration, and the step of generating additional grid through each intersection of the grid and the segments of the polygonal figure not parallel to the grid.

Abstract: A set of sorted columns of one table stored in a DB machine are binary-searched by a hardware in synchronism with data transfer when another table is read from a disk unit, to select a row to be joined. Where a key word sequence to be searched is stored in ascending or descending order, determination of a maximum address in an area in which key words smaller than a search key are stored and determination of a maximum address in an area in which the key words smaller than or equal to the search key are stored are parallelly executed to determine the store range in one searching.

Abstract: An electronic control system for controlling an automatic transmission determines a gear position based on vehicle speed data immediately before a power supply is cut off. The gear position is determined during a transient period occurring after the electronic control system is reset by the power supply cutoff, until the control system resumes stable operation. Even when the electronic control system is reset by the instantaneous power supply cutoff while the vehicle is travelling, the electronic control system allows the vehicle to run safely without erroneous gear shifting immediately afterwards.

Abstract: Method for simulating a dyed fabric, in which an image of the dyed fabric is produced on a display device, such as a color monitor, or on a hardcopy. The fabric to be simulated consists of dyed yarns woven into each other which each consist of interrupted pieces of particular shape at the surface perceptible to the eye. The colors of all the points in the total surface of each simulated shape are summed and corrected so that the average color is approximately the same as the spectrophotometrically measured color of the shape of the fabric in reality, The simulated shape is embodied in a manner such that it is approximately the same as the shape of the yarn which the eye will observe when observing the fabric in reality and which is provided with shading at the edges when it passes over and beneath other yarns. For the purpose of defining the position of the surface of the simulated shape in the three-dimensional space, the shape is chosen as an elliptical shape between two yarns passing thereover.

Abstract: An electronic control system for operating a torque converter clutch during a transmission gearshift includes a vehicle speed sensor and engine speed sensor, a hydrodynamic torque converter located between the engine and the transmission, a solenoid-operated hydraulic valve, which engages and disengages the torque converter clutch in accordance with the energized and deenergized state of the solenoid in accordance with the logic of the control system. The converter clutch is locked while operating in the original gear ratio, then unlocks during the gearshift, and relocks after the upshift is completed. The speed ratio of the torque converter is rapidly determined in terms of the number of clock ticks occurring between pulses whose frequency is proportional to engine speed. The current speed ratio is determined during interrupts occurring at short intervals during a background pass.

Abstract: A hydraulic pressure control system for reducing engagement shock of a frictional element in an automatic transmission, comprises an electromagnetically operated valve for generating a hydraulic pressure supplied to the frictional element, and a control unit for controlling the hydraulic pressure such that the level of the hydraulic pressure generated is adjusted to a target value. In the control unit, the difference in the torque applied to the transmission output shaft owing to a shifting operation is determined, the length of time from the beginning of an inertia phase to the end of the inertia phase is determined, the mean rate of change in the torque of the output shaft during the length of time is determined, and the target value is determined such that the torque on the transmission output shaft varies at the mean rate of change during the inertia phase.

Abstract: A software model of the auditory characteristics of an auditory prosthesis is stored independently of the actual auditory prosthesis being fitted to determine the acoustic parameters to be utilized. A transfer function of the auditory characterictics of the individual auditory prosthesis to be fitted, or of an exemplary model of such an auditory prosthesis, is created, transformed into a table, or other usable form, and stored in software usable by the automated fitting program. The automated fitting program may then "test" or try by iterative process, the various settings for the acoustic parameters of the auditory prosthesis and determine accurately the results without actual resort the physical auditory prosthesis itself.

Abstract: A throttle valve opening detecting apparatus of an automatic transmission for detecting an angular position or opening of a throttle valve for controlling the amount of air-fuel mixture reaching cylinders of a vehicle engine that includes a throttle valve position sensor for providing an output proportional to an angular position or opening of the throttle valve. A memory device memorizes a minimum value of the output to set a reference output for a closed position of the throttle valve. A renewing device decreasingly renews the reference output when the throttle valve position sensor provides an output smaller than the reference output set in the reference output. The renewing device increasingly renews the reference output when the throttle valve position sensor provides an output larger than the reference output and smaller than a preset reference output for a predetermined or preselected period of time.

Abstract: A method is disclosed for efficiently protecting dynamic compressors from surge under changing inlet conditions and in response to flow disturbances of varying size and speed. An antisurge control system based on this disclosed method will compute the relative proximity of the compressor operating point to its surge limit as a multi-variable parameter which is self-compensated for changes in gas composition, inlet temperature and pressure, compressor efficiency, guide-vane position, and rotational speed. A combination of adaptive closed- and open-loop control responses is used to maintain a margin of safety between the operating point and the surge limit. Both the safety margin and the magnitude of the open-loop response are proportional to the rate at which the operating point approaches the surge limit, thus maximizing process efficiency.

Abstract: A hydraulic control apparatus for a transmission comprising a hydraulic change speed clutch, an oil line connecting the change speed clutch to an oil pump, an electromagnetic proportional reduction valve mounted on the oil line for varying oil pressure output to the change speed clutch in response to control current applied to the reduction valve, a microcomputer for producing the control current and applying the same to the reduction valve, and a command unit for transmitting a command to the microcomputer to engage the change speed clutch.

Abstract: An apparatus for creating a realistic feel for a simulated gearshift, comprising a simulated gearshift for a simulated transmission in a simulated vehicle and having a gearshift lever and a simulated shift pattern for simulating the look and movements through an actual shift pattern of an actual gearshift in a vehicle. A pivoting mechanism allows the gearshift lever to pivot about at least two axes. An electrically operable clutch receives a control signal controlling the amount of force applied to the pivoting mechanism to cause resistance to movement by said shift lever along at one of the axes. A positional sensor array generates a signal from which the position of the shift lever in the simulated gearshift pattern may be ascertained. A strain gauge coupled to the gearshift lever senses the degree of strain in the gearshift lever and generates a signal telling whether an operator is pulling or pushing on the gearshift lever and in what direction.

Abstract: In a hardware simulator for use in successively carrying out simulations of gates arranged in a logic circuit, a plurality of connection data signals are stored in a connection memory to specify connections among the gates while a plurality of gate species data signals are stored in a gate species memory to represent each species of the gates. Responsive to a test data signal, a processing circuit executes each simulation of the gates with references to both the connection and the gate species data signals read out of the connection memory and the gate species memory, and supplies a simulation result signal to one of several status memories. Each simulation may be carried out in a pipeline fashion. Alternatively, the connection data signals can be derived from a modified logic circuit obtained by rearranging the logic circuit.

Abstract: A control method/system for an automatic/semi-automatic mechanical transmission system (10) is provided including logic rules by which a faulty input signal indicative of a gear neutral condition (GNS=.phi.) can be detected and, in the event of such detection, a fail safe mode of operation is implemented.

Abstract: In a system for integrally controlling an automatic transmission and an engine, an apparatus for controlling the automatic transmission and an apparatus for controlling the engine are formed separately from each other to reduce size and cost, and to facilitate the mounting of control means onto a vehicle. Further, if trouble occurs in this communication system between the engine control apparatus and the automatic transmission control apparatus countermeasures are properly performed, and a trouble is reduced as much as possible.

Abstract: A method for resolving severely overlapped chromatogram peaks using Jansson's iterative deconvolution method is disclosed. The method requires only a knowledge of the impulse response function of the chromatographic apparatus and maximum peak height. A high degree of resolution is achieved without significantly degrading the chromatogram signal to noise ratio.

Abstract: A hand-held battery-powered instrument tests communications ports of a data-processing system by analyzing received data frames for multiple conditions, such as parity, poll commands, and violation sequences. Indicator lights show proper/improper operation of the port, and also indicate phase reversal of the lines.

Abstract: A control system and method for a semi-automatic mechanical transmission system (10) is provided for sensing high resistance to vehicle forward movement and allowing engagement of a gear ratio lower than the lowest engageable ratio at substantially constant vehicle speed.

Abstract: A microcomputer-based electronic control system for a full time four wheel drive torque transfer case monitors the relative slip between the front and rear output shafts of the transfer case, and generates a signal to engage an electromagnetic clutch for a predetermined time period in the event a predetermined slip threshold is exceeded. Below a predetermined vehicle road speed, the electronic control utilizes a pulse counting technique to determine whether or not an excessive slip condition occurs. Above the predetermined speed, the control compares the front and rear output shafts speeds to determine whether there is excessive slippage. During the first portion of the clutch engagement period, the clutch is fully engaged while, during the last portion, a partial clutch engagement signal is generated to cause the clutch to gradually move from a fully engaged condition to a fully disengaged condition. The length of time the clutch is engaged can be a function of the vehicle road speed.

Abstract: Process of analysis of the complex displacements of a moving horse, consisting in: (a) placing on the horse (the saddle, for example) in real movement, measuring means (accelerometers, gyrometers, inertial control unit) by means of which one measures the speeds of linear displacement along the three axes, X, Y, Z and possibly of rotational displacement along these same axes; (b) establishing from these measurements the figurative curves, by repetitive pkeriods, of the variations of speed and position for the linear displacements and possibly for the rotational displacements; (c) analyzing these curves so as to determine its performances and its aptitudes for the different gaits, figures and jump, according to the different usages desired.

Abstract: Process for the digitization and linearization of a quasi-sinusoidal periodic characteristic transducer and the corresponding apparatus.The process consist of measuring a variation (.DELTA..phi..sub.x) of a signal (.phi..sub.x) received by the transducer in accordance with the following operations:superimposing on the signal to be measured a first auxiliary periodic signal (.phi..sub.I) of frequency F.sub.I higher than the highest frequency of the range of the signal to be measured and of amplitude substantially equal to .phi..sub.o /2 and a second auxiliary signal constituted by a periodic linear ramp (.phi..sub.R) of a frequency f.sub.R well below F.sub.I and of amplitude .phi..sub.1, the transducer thus receiving a composite signal constituted by the signal to be measured, the first auxiliary signal and the second auxiliary signal;deducing from the signal supplied by the transducer, two periodic signal V.sub.C1 and V.sub.C2, of period .phi..sub.