摘要:
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.
摘要:
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.
摘要:
An engine wherein a target air-fuel ratio is changed over according to the running conditions is provided with a device for computing a target throttle opening area based on the accelerator operation and a selected air-fuel ratio. It also includes a device for correcting the throttle opening such that the throttle opening area is equal to a target throttle opening area, a device for computing a fuel amount to be provided to the engine based on the target air-fuel ratio, intake air volume and engine speed, and a device for regulating the fuel supply to the computed amount. In this way, the throttle valve opening is corrected when the air-fuel ratio is changed, fluctuations in the torque generated by the engine are smoothed out, and torque shock due to the air-fuel ratio change-over is thereby prevented.
摘要:
The throttle valve position is sensed and the effective cross sectional area of the induction passage determined via table look up. The value thus derived is divided by the engine speed. A basic air induction quantity is then determined via table look up and subsequently modified using a correction coefficient to allow for the effect of engine speed on the amount of air inducted into each cylinder. The effect of injector position (viz., MPI/SPI) is taken into consideration and values suited for both generated in given embodiments. In the event that the maximum induction vacuum is limited by a BCD valve or the like, an embodiment anticipates the change in induction characteristics based on the engine speed.
摘要:
At least a portion of an oxygen sensor element support to which portion an oxygen sensor element directly contacts is constructed of an heat insulating material having very low thermal conductivity, so that the heat release from the oxygen sensor element is minimized.
摘要:
A device comprising an oxygen-sensitive element to be disposed in a combustion gas exhausted from a combustor to detect deviation of actual air/fuel ratio from a stoichiometric ratio. The element is a combination of two oxygen concentration cells each having a solid electrolyte layer, a measurement electrode layer formed on one side of the electrolyte layer, a reference electrode layer formed on the opposite side and covered with a shield layer. Either measurement electrode layers or reference electrode layers of the two cells are connected to each other, and a constant DC voltage is applied to the element to force a current to flow through solid electrolyte layers of both cells to cause migration of oxygen ions therethrough, from the measurement electrode to the reference electrode in one cell and reversely in the other. The device has a circuit to make a comparison between a fixed reference voltage and an output voltage developed between the measurement and reference electrodes of one cell of the element to produce a high-or-low level control signal according to the result of the comparison. The output voltage is independent of the internal resistance of the element and is scarcely affected by the temperature of the element.
摘要:
An automatic transmission includes at least an input section, an output section, first and second frictional engagement elements, and a controller. The input section receives an input torque from a drive unit. The first frictional engagement element has an engaged state allowing the output section to rotate at a first transmission gear ratio with respect to the input section. The second frictional engagement element has an engaged state allowing the output section to rotate at a second transmission gear ratio with respect to the input section. The controller controls at least a gear shift from the first transmission gear ratio to the second transmission gear ratio. The controller controls the first and second frictional engagement elements and the drive unit so as to cancel an inertia torque resulting from the gear shift.
摘要:
An automatic transmission hydraulic control apparatus includes an oil pump driven by an engine, a forward clutch arranged to be engaged by an engagement pressure from the oil pump at a start of the vehicle, a hydraulic pressure sensing section configured to sense a hydraulic pressure in the automatic transmission, a filling start judging section configured to judge a start of filling to the forward clutch in accordance with the sensed hydraulic pressure; and an engagement pressure control section configured to control the engagement pressure to go through a filling phase and an engagement phase. The engagement pressure control section shifts from the filling phase to the engagement phase when a predetermined time elapses from the judgment of the start of the filling to the forward clutch.
摘要:
A control apparatus of an automatic transmission having first and second frictional engagement elements that achieve lower and higher speed gear stages respectively, includes a target value determination section setting a rotation speed difference between input and output sides of the frictional engagement element, a total torque capacity calculation section calculating a total torque capacity, a distribution ratio determination section setting a distribution ratio of the total torque capacity to the first and second frictional engagement elements, an individual torque capacity calculation section calculating individual torque capacities respectively required of the first and second frictional engagement elements, and an engagement control section controlling engagement conditions of the first and second frictional engagement elements in accordance with the individual torque capacity. The automatic transmission realizes an up-shift by changeover between first and second frictional engagement elements based on the individual torque capacity during a vehicle power-on travel.
摘要:
A shift control apparatus of a belt type continuously variable transmission is comprised of a controller which is arranged to set a first hydraulic pressure controlled variable based on a first target transmission ratio determined based on a vehicle traveling condition, to set a second hydraulic controlled variable based on a second target transmission ratio determined based on a predetermined transfer characteristic, to steplessly control the transmission ratio by controlling hydraulic pressures of primary and secondary pulleys hydraulic based on the first and second hydraulic pressure controlled variables, to detect at least one of the hydraulic pressures of the primary and secondary pulleys, and to correct the second target transmission ratio based on the detected hydraulic pressure.