Abstract: A torque detector for detecting a torque applied to a load from a driving shaft is disclosed. The torque detector comprises an elastic member which is interposed between a first shaft connected to the driving shaft and a second shaft connected to the load so as to be connected thereto, an angular phase difference detecting means for detecting an angular phase difference occurring between the first shaft and the second shaft when the torque is transmitted from the first shaft to the second shaft through the elastic member, and a data processing means for calculating the torque from the detected angular phase difference.

Abstract: A torque detector, for detecting a torque applied to a torque transmission shaft which is connected to a load of an automobile, comprises an elastic member which is interposed between a driving shaft and the torque transmission shaft so as to be connected thereto, rotating members, each of which is integrally provided with the shafts, have a plurality of teeth or notches in the outer periphery thereof so as to be positioned in each combustion stroke of each piston of an engine of the automobile, electromagnetic pickups for detecting the passing of the teeth or notches and a data processing circuit for calculating torque at a predetermined rotating angle from the angular phase difference between the above two shafts, the torque occurring due to the deformation of the elastic member caused by the increase or decrease of applied torque. The processing means adds the calculated torque in each combustion stroke of each piston and averages the added torque.

Abstract: A torque detector, particularly a torque detector for detecting a torque applied to a torque transmission shaft which is connected to a load such as a wheel of an automobile, comprises a first shaft connected to a driving shaft, a second shaft connected to a torque transmission shaft, and a plurality of elastic members, each of which is interposed between the first shaft and the second shaft for transmitting the torque of the first shaft to the second shaft while receiving the compression force between the first shaft and the second shaft when the driving shaft is driven. The first shaft comprises a flange portion wherein a plurality of long grooves are formed so as to extend in the rotating direction thereof. The second shaft comprises a flange portion wherein a plurality of long holes are formed so as to extend in the rotating direction thereof and penetrate therethrough at such positions as to be substantially opposed to said long grooves.

Abstract: A system for controlling the air-fuel ratio of an internal combustion engine includes a transient fuel amount increasing device for regulating the supply fuel amount in the transient state of the engine on the basis of the detection of the transient state of the engine, an air-fuel ratio deviation detecting device for detecting the air-fuel ratio deviation from the optimum air-fuel ratio, and a transient fuel increase amount correcting device for correcting the fuel increase amount in the transient state of the engine in accordance with the air-fuel ratio deviation detected by the air-fuel ratio deviation detecting device. The air-fuel deviation from the optimum air-fuel ratio of the air-fuel mixture upon deposition of a deposit on the back surface of the intake valve is prevented, and the drivability of an automobile is improved.