摘要:
A fuel cut-off control can prolong a period of time in which the engine speed is maintained at a range suitable for performing fuel cut-off and shorten a period of time in which the engine speed is in a fuel recovery range to minimize fuel consumption during engine deceleration. In a fuel cut-off control system in a fuel injection internal combustion engine with an automatic transmission, the fuel cut-off control system is responsive to a brake switch signal and an engine speed signal having a value above a fuel recovery threshold to decrease the value of a fuel cut-off threshold to again perform the fuel cut-off even in the normal fuel recovery range. Down shifting of a transmission gear is performed to increase engine speed to a level beyond the fuel cut-off threshold to prolong the fuel cut-off period.
摘要:
A shift shock in an automatic transmission during a change of gear positions is reduced by maintaining a hydraulic pressure (line pressure) equal to the magnitude of a desired hydraulic pressure for a predetermined holding time.
摘要:
An automatic transmission is changed from the highest gear ratio to the next lower gear ratio upon depressing the brake pedal after the accelerator has been released to cause the automotive vehicle to begin a coasting operation as long as the engine speed is higher than a predetermined engine speed. As a result the engine speed increases, resulting in an increase in the time period when the engine speed remains above the predetermined engine speed to enhance the time period of the operation of fuel cut means, thereby improving fuel economy.
摘要:
A control system for an engine of an automotive vehicle equipped with a lock-up type automatic transmission.The engine control system comprises a gear ratio determinating circuit and a vehicle speed detector for determining whether the automotive vehicle is operating in a predetermined lock-up range or not and a logic circuit for generating a lock-up signal that indicates that the automotive vehicle is operating within said predetermined lock-up range, whereupon exhaust gas recirculation and ignition timing are varied from their ordinary patterns to a pattern suitable for operation of the engine with the torque converter operating in a lock-up state.
摘要:
An infrared radiator is disclosed which comprises a molded mass of an infrared radiating material and a frit material both in the form of powders which are fusingly bonded together on molding with or without use of a metallic substrate. Alternatively, the infrared radiator comprises a metallic substrate, an enamel coated layer formed on the substrate and made of a first material, the layer being roughened to have a certain level of surface roughness, and an infrared radiating material deposited on the enamel coated layer.
摘要:
An automotive fuel hose comprising a two-ply rubber tube covered with a reinforcing fiber layer and further with a protective rubber layer. The two-ply rubber tube is constituted of a very thin inner layer of a fluorine rubber resistant to fuel, even to sour gasoline, and an outer layer of a synthetic rubber, such as epichlorohydrin rubber or ethylene-acrylic rubber, which is less resistant to sour gasoline but is superior in cold resistance. Both the inner and outer layers are formed by extrusion, preferably simultaneously.
摘要:
A connector formed of flexible plastic has a female socket at one end of an elongated flexible connection rod provided with two pivotal lock lugs positioned to face each other within a locking aperture and a male inserting head and a stopper at its opposite end which are inserted in the locking aperture; a flexible flange on the male inserting head engages the pivotal lock lugs during insertion and cannot be withdrawn following insertion; a bulbous stopper limits inward movement of the components in the female socket.
摘要:
A blank of stoppers is molded from synthetic resin, each of said stoppers including a crossbar, a filament portion and a head. The filament portion has a smaller-diameter portion near the crossbar and a larger-diameter portion extending from the smaller-diameter portion toward the head at least on the portion to be stretched.Metal mold members adapted to act as a drawing die are engaged to the connecting portion of the smaller-diameter and larger-diameter filament portions, and after the stoppers have been molded, the members forming the die are moved along the filament portion so that only the crossbars are gripped by the metal mold to prevent movement thereby subjecting the filament portions to stretching.
摘要:
A binding strap made of synthetic resin comprises a head portion, an intermediate portion extending from the side of the head portion and a connecting portion provided at the forward end of the intermediate portion. The head portion of this binding strap is formed with an insert hole having a stop tooth, so that when the connecting portion is inserted through said insert hole, the enlarged portion of the connecting portion engages with said stop tooth thereby effecting sure connection without slipping-off of the connecting portion therefrom. This intermediate portion may be provided with an indication portion for an appropriate indication, and therefore this binding strap can also have a function of indication other than binding.