摘要:
In method and apparatus for automatically stopping an engine idling for an automotive vehicle, a vehicular velocity it detected, a brake manipulated variable of a brake manipulator is detected, the brake manipulated variable is compared with a predetermined criterion to determine whether a brake manipulator is operated, the engine is stopped when the vehicular velocity is detected to be zero and the brake manipulator is determined to be operated, the engine is re-stated when an operation of the brake manipulator is released the brake manipulated variable is determined after the vehicular velocity is zero and the brake manipulator is operated, and the predetermined criterion is updated on the basis of the learning value.
摘要:
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. In addition, if the formation behavior of active oxygen of semi-finished products in the production process is measured in the same manner, the quality of flavor stability when that semi-finished product has become a finished product can be predicted and evaluated.
摘要:
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.
摘要:
An air-fuel ratio control system for controlling the air-fuel ratio of air-fuel mixture to be inducted into an automotive engine in order to accomplish feedback control of the air-fuel ratio into a stoichiometric level of feedforward control of the air-fuel ratio into a lean level. The air-fuel ratio control system is comprised of a control unit which is electrically connected to an oxygen sensor for detecting the air-fuel ratio and to a variety of sensors for detecting engine operating condition. The control unit is adapted to calculate an air-fuel ratio correction coefficient in accordance with the detected air-fuel ratio. The feedback control of the air-fuel ratio is accomplished in accordance with the air-fuel ratio correction coefficient. The control unit is further adapted to form a plurality of learning areas defined respectively by engine operating conditions. Learning is made in each learning area. At least a part of each learning area is under the feedback control. The control unit is adapted to further calculate a learning coefficient for the learning area corresponding to the detected engine operating condition, in accordance with the air-fuel ratio correction coefficient under the feedback control. The learning coefficient is memorized in the above-mentioned at least a part of each learning area. The feedforward control of the air-fuel ratio is accomplished in accordance with the learning coefficient in the learning area corresponding to the detected engine operating condition, thereby improving the precision of control in the feedforward control of the air-fuel ratio.
摘要:
A temperature control system is disclosed wherein a heater of a gas sensor and a plurality of reference resistors cooperate to form a bridge circuit. The temperature control system comprises a comparator means for monitoring a balancing voltage of the bridge circuit and generating a control signal indicative of the balancing voltage and an electric power amplifier means responsive to the control signal for varying a voltage applied to the bridge circuit in such a manner to reduce the balancing voltage. The gas sensor has mounted therein at least one of the plurality of reference resistors, which reference resistor having a resistance resulting from multiplying the resistance of the heater with a constant.
摘要:
An improved evaporative emission control device of an internal combustion engine having a variable venturi type carburetor which is effective to reduce unburnt components in the exhaust gas over the entire range of engine operation. Fuel vaporized in a fuel tank, a float chamber or the like and stored in a canister containing activated charcoal is supplied to an intake passage of the carburetor through a supply port which opens into the intake passage at a location between a throttle valve and a venturi valve which is disposed in the intake passage to vary the opening area of the venturi. A valve is disposed in a line connecting the supply port and the canister to control fuel vapor passing through the line. The valve is controlled to open and close in response to the operations of a clutch and/or a transmission device interposed in a power transmission system for conducting power from the engine to driving wheels.
摘要:
Disclosed is a device useful for detection of air/fuel ratio of an air-fuel mixture subjected to combustion in a combustor by sensing oxygen in the exhaust gas, using a solid electrolyte concentration cell type oxygen-sensitive element which requires supply of a DC current to flow through its solid electrolyte layer between reference and measurement electrode layers to establish a reference oxygen partial pressure at the interface between the reference electrode and the solid electrolyte. The device comprises a control circuit to vary the intensity of the current for the oxygen-sensitive element in dependence on the magnitude of output voltage of the oxygen-sensitive element at least when a predetermined one of said output voltage and a reference voltage is higher than the other in order to compensate variations of the magnitude of the reference oxygen partial pressure caused mainly by variations of the temperature.
摘要:
A muffler having a sealed diffusion chamber provided at its front end with an inlet port of a cross section smaller than that of the diffusion chamber. Within the diffusion chamber there is an outlet pipe having a closed front end disposed a fixed distance from the inlet port. The rear end of the outlet pipe communicates with the atmosphere. The walls of the outlet pipe are perforated to permit communication between the diffusion chamber and the interior of the outlet pipe.
摘要:
A transmission controller permits a 2-1 shift, in which a gear position of a subtransmission mechanism is changed from a second speed to a first speed, when an accelerator pedal has been depressed to or above a predetermined opening. The gear position of the subtransmission mechanism is changed from the second speed to the first speed when an actual through speed ratio passes a mode switch line from a High side to a Low side while the 2-1 shift is permitted in the subtransmission mechanism.
摘要:
A device for mounting a cover of a cutting blade to a riving knife may have an engaging member for releasably engaging at least a part of the riving knife from both sides, in a direction of thickness of the riving knife. The engaging member is manually operable without any additional tools. A device for mounting a riving knife to a table saw may include a manually operable lock member and a biasing member. The biasing member is arranged and constructed to normally bias the lock member towards a lock position. The riving knife may be divided into a first knife portion and a second knife portion. A positioning device may position the first knife portion and the second knife portion substantially within a single plate.