Abstract: A driving force control system for an automotive vehicle provided with a transmission including a first motor-generator connected to an engine, and a second motor-generator connected to road wheels and driven by electric power generated by the first motor-generator. A first rotational speed sensor is provided for detecting a rotational speed of the first motor-generator. A second rotational speed sensor is provided for detecting a rotational speed of the second motor-generator. A control unit is provided programmed to control the rotational speed of the first motor-generator in accordance with the rotational speed of the second motor-generator. Additionally, the control unit is programmed to control a ratio between a first driving frequency for the first motor-generator and a second driving frequency for the second motor-generator so as to control the rotational speeds of the first and second motor-generators.

Abstract: An integrated control system for both an electronically-controlled engine and a steplessly variable automatic transmission, comprises a speed-change ratio arithmetic processing section for calculating the speed-change ratio as a ratio of the transmission input speed to the transmission output speed, a target driving torque arithmetic processing section for retrieving a target driving torque, based on both the accelerator operating amount and the vehicle speed, from a first predetermined characteristic map, and a target speed-change ratio arithmetic processing section for retrieving a target speed-change ratio, based on both the accelerator operating amount and the vehicle speed, from a second predetermined characteristic map. Also provided is a target engine output torque arithmetic processing section for calculating a target engine output torque, based on all of the target driving torque, the speed-change ratio, and a speed ratio of the transmission input speed to the engine speed.

Abstract: An integrated driving-torque control system for an automotive vehicle with a continuously variable automatic transmission (CVT) and an electronically-controlled engine, comprises a desired transmission ratio arithmetic-calculation circuitry calculating a required axle-driveshaft driving torque from an accelerator depression amount and a vehicle speed, and retrieving a desired transmission ratio on the basis of the required axle-driveshaft driving torque and the vehicle speed VSP. An electronic control unit (ECU) executes automatic shifting control for the CVT so that an actual transmission ratio is adjusted to the desired transmission ratio. A first arithmetic-calculation circuitry calculates a first desired engine output torque corresponding to the required axle-driveshaft driving torque, whereas a second arithmetic-calculation circuitry calculates a second desired engine output torque corresponding to the accelerator depression amount.

Abstract: A power-driven hammer has a tool holder a middle bore portion which is supported inside a housing and urged backward by a compression spring. The rear end of a large bore portion of the tool holder is slidably fitted into a spline ring which is secured to the front end of a middle housing. Spline grooves are formed in the inner periphery of the spline ring at its front end while spline gears are formed on the outer periphery of the large bore portion. When the spline grooves and the spline gears are engaged with each other, the tool holder, being urged backward, is locked with its rotation prohibited. This tool holder can be temporarily unlocked to allow its rotation by sliding a change ring cover forward and the tool holder itself, thereby disengaging the large bore portion from the spline ring.

Abstract: In a hybrid vehicle wherein the rotation torque of a motor and engine are input to a continuously variable transmission, a target speed ratio is determined from a target engine rotation speed set based on a target drive torque of said vehicle and a vehicle speed. A target combined torque of the motor and engine is set based on the target drive torque and a real speed ratio of the transmission. A target motor torque is determined based on the target combined torque and the input rotation speed of the continuously variable transmission. A value obtained by subtracting the target motor torque from the target combined torque is set equal to a target engine torque. The drive force of the hybrid vehicle is optimized by controlling the engine, motor and continuously variable transmission by the target engine torque, target motor torque and target speed ratio thus obtained.

Abstract: There is provided a power-driven striking tool including: a casing; a tool holder rotatably supported inside the casing and having a front end to which a tool bit is attached; and an operating member fitted around the tool holder and exposed to the outside of the tool so as to be manually slidable in the axial directions of the tool holder and integrally rotatable with the tool holder. The operating member is biased rearward by a compression spring along the axis of the tool holder into contact with the casing. The tool further includes first teeth provided on the operating member where it comes into contact with the casing and second teeth provided on the casing where it comes into contact with the operating member. When the operating member is brought into contact with the casing, the first and second teeth engages each other to prevent the operating member and thus the tool holder from rotating relative to the casing.

Abstract: The present invention relates to an improved intravaginal preparation containing a physiologically active peptide, which comprises a physiologically active peptide, a sucrose fatty acid ester and an organic acid with a pharmaceutically acceptable carrier or diluent, by which the physiologically active peptide can be absorbed safely and efficiently.

Abstract: An apparatus for controlling a torque produced from an internal combustion engine operable at an air/fuel ratio. The engine torque control apparatus includes a first control device for controlling an amount of air permitted to enter the engine, and a second control device for controlling an amount of fuel metered to the engine. Target values for the engine torque and air/fuel ratio are calculated based on the sensed engine operating conditions. The first and second control devices are set to control the engine torque to the target value calculated therefor and the air/fuel ratio to the target value calculated therefor.

Abstract: An apparatus for controlling a torque produced from an internal combustion engine operable at an air/fuel ratio. The engine torque control apparatus includes a first control device for controlling an amount of air permitted to enter the engine, and a second control device for controlling an amount of fuel metered to the engine. Target values for the engine torque and air/fuel ratio are calculated based on the sensed engine operating conditions. The first and second control devices are set to control the engine torque to the target value calculated therefor and the air/fuel ratio to the target value calculated therefor.

Abstract: A predetermined firing delay time B.sub.1 is added to a value obtained by dividing a total gas weight Gcyl in a cylinder by an unburnt gas density basic value DENS and a laminar flow flame velocity basic value FLML. The value obtained by this calculation is unit converted and then set as a basic ignition timing for which a minimum ignition advance value or MBT is obtained. In this way, ignition timing control is optimized for various engine running conditions without preparing a plurality of maps.

Abstract: Quantitative determination and evaluation of the flavor stability of fermented alcoholic beverages are performed by measuring the changes of the amount of spin adduct from the formation behavior of active oxygen with passage of time using an ESR apparatus and either determining the value on the time axis of the inflection point of changes of the amounts of spin adduct (defined as the active oxygen formation lag time) or determining the amount of spin adduct after a predetermined time has elapsed after the start of measurement (defined as the active oxygen formation activity). The longer the active oxygen formation lag time or the lower the active oxygen formation activity, the greater the oxygen resistance of the fermented alcoholic beverage, thus making it possible to evaluate that fermented alcoholic beverage as having good flavor stability.

Abstract: The present invention relates to an improved intravaginal preparation containing a physiologically active peptide, which comprises a physiologically active peptide, a sucrose fatty acid ester and an organic acid with a pharmaceutically acceptable carrier or diluent, by which the physiologically active peptide can be absorbed safely and efficiently.

Abstract: A multi-layer plastic fuel tank comprising (A) a gas barrier layer having on at least one side thereof (B) an adhesive layer and further thereon (C) a high-density polyethylene layer, the gas barrier layer (A) comprising a resin having gas barrier properties, the adhesive layer (B) comprising a resin having adhesiveness to both of the gas barrier layer (A) and the high-density polyethylene layer (C), the high-density polyethylene layer (C) comprising high-density polyethylene having an intrinsic viscosity of from 2 to 6 dl/g, a density of from 0.940 to 0.970 g/cm.sup.2, and a zero shear viscosity of from 2.0.times.10.sup.7 to 1.0.times.10.sup.8 poise at 190.degree. C.

Abstract: A learning or updating function which corrects the feedback control correction factor is included in a dual O.sub.2 sensor type control system. Correction related data which is used to modify in response to the output of an upstream sensor or sensor section, is recorded at memory addresses which corresponding to the sub-sections of an engine operation map. When the output of the upstream sensor changes, a sub-region in which the engine operation fell a time .tau. earlier or in which the engine operation has continuously fallen for the time .tau., is selected and the correction related data which is recorded at the corresponding address, read out, updated based in the output of the second sensor or sensor section and re-recorded at the same address.

Abstract: When engine operation falls in a predetermined zone wherein it is necessary to attenuate engine surging or the like type of engine operating phenomenon, and wherein mapped adaptive update value data is required to exhibit a different resolution to the adaptive update value data which is contained in the remainder of the map not included in the predetermined zone, the operation of the engine in the predetermined zone is detected and an indication of the same set. While the indication is set, updating of the mapped data which corresponds to the predetermined operational zone, is inhibited. In some embodiments mapped data which corresponds to the predetermined operational zone is set in a separate memory section and updated in a manner different from the manner in which the data which does not correspond to the special zone, is updated.

Abstract: This invention relates to an engine provided with a plurality of cylinder banks, exhaust manifolds for collecting exhaust from each bank, an exhaust branch pipe for combining the flows from the exhaust manifolds, and a three-way catalyst interposed in the exhaust branch pipe. An air-fuel ratio sensor is interposed in the exhaust manifold for each cylinder bank, and feedback control of the air-fuel ratio of each bank is performed based on the air-fuel ratio detected by the sensor of a specific bank such that this air-fuel ratio varies with a predetermined amplitude about the theoretical value as center value. The rich and lean times of the air-fuel ratio of the other banks are also measured from the output of the sensor at each bank, and feedback control is corrected for each bank such that the rich time is equal to the lean time for any bank.

Abstract: A learning or updating function which corrects the feedback control correction factor is included in a dual O.sub.2 sensor type control system. Correction related data which is used to modify in response to the output of an upstream sensor or sensor section, is recorded at memory addresses which corresponding to the sub-sections of an engine operation map. When the output of the upstream sensor changes, a sub-region in which the engine operation fell a time .tau. earlier or in which the engine operation has continuously fallen for the time .tau., is selected and the correction related data which is recorded at the corresponding address, read out, updated based in the output of the second sensor or sensor section and re-recorded at the same address.

Abstract: This invention relates to an air-fuel ratio control system for an engine which can continuously detect the air-fuel ratio of the air-fuel mixture supplied to the engine using an air-fuel ratio sensor within a wide range including the theoretical air-fuel ratio, and can then, based on the sensor output, perform feedback correction of the air-fuel ratio to the theoretical air-fuel ratio or to another air-fuel ratio. The deterioration of the air-fuel ratio sensor is judged based on the difference between the feedback correction coefficient when feedback control is performed to the theoretical air-fuel ratio, and the feedback correction coefficient when it is performed to another air-fuel ratio. Deterioration of the sensor is thereby detected completely separate from scatter or deterioration of performance of the fuel injector or other components.

Abstract: A blow molded container made of a polypropylene resin obtained by injection stretch blow molding of a polypropylene resin in which the polypropylene resin is a propylene polymer composition containing from 0.0001 to 10% by weight of 3-methylbutene-1 polymer, as well as medical instruments comprising the blow molded container made of the polypropylene resin.