Abstract: The invention relates to a method and apparatus for limiting road speed in electrically controlled diesel engines. The output signal of the road-speed transducer or, if the road-speed transducer is defective, the output signal of the engine speed transducer is evaluated by means of pregiven thresholds. In the presence of a simultaneous clutch signal and a quantity signal which is less than a pregiven injection quantity a waiting time is made available in advance of the quantity reduction so that when the clutch is actuated, fuel can be metered when the clutch pedal is depressed or the vehicle can be started on a hill. No transmission signal is necessary for limiting road speed whereby manipulations on the road-speed limitation are prevented.

Abstract: For controlling a motor vehicle friction clutch (3) which is operated by an actuating drive (7) during parking maneuvers, an output adjusting device (19) of the internal combustion engine (1) is unaffected over a limited initial pedal travel (.alpha..sub.0) of the accelerator pedal (17). According to the pedal position at any given time, the actuating drive (7) of the clutch (3) is controlled within the initial pedal travel. According to the pedal position and in keeping with a predetermined first signal characteristic a desired torque signal is generated and the actuating drive (7) is positioned as a function of the desired torque signal and in keeping with a predetermined second signal characteristic. In the clutch position determined by the pedal position, an actual torque signal is generated which represents the torque of the internal combustion engine (1) and it is compared with the desired torque signal.

Abstract: A single level control comprising a housing, a control lever pivotally mounted on the housing and adapted to be operably connected to an engine throttle and to a clutch, a warning horn connected to the housing and adapted to be operably connected to an engine for providing a warning signal when an engine condition exceeds a predetermined value, a cover connected to the housing and adapted to be mounted on a generally flat mounting surface, the cover partially enclosing the housing and enclosing the warning horn, and an ignition switch mounted on the cover and adapted to be operably connected to an engine ignition system.

Abstract: A change-speed construction for a fishing reel. The construction has a cylindrical shaft for transmitting force from a handle arranged at an outer end position, a first gear rotatably fitted on the cylindrical shaft for high-speed winding, a second gear rotatably fitted on the cylindrical shaft for low-speed winding. The construction further has an engaging element for engaging either the first gear or the second gear for transmitting power from the cylindrical shaft, with the engaging element being slidable along an axis of the cylindrical shaft, an anti-slant portion having a slanting motion thereof restricted relative to the cylindrical shaft, and a posture maintaining mechanism including a portion attached to the anti-slant portion and a further portion attached to the engaging element. These portions come into sliding contact with either each other for preventing slant or `twist` of the engaging element.

Abstract: A device for the control of an automatic motor vehicle clutch is arrayed between an engine and a geaar box and acts primarily as a start-up clutch. A control device receives an electric signal coming from an electronic control device and transforms it into a control quantity for an actuator which engages and disengages the clutch. The engagement of the clutch at start-up occurs with a basic clutch-in speed dependent upon the positioning of the gas pedal and initiated by this positioning and is determined as an electric signal by an electronic control device. For this purpose, a characteristic curve which was determined specifically for the engine is stored in the memory of the electronic control device so that in dependence on the displacement angle of the gas pedal the basic clutch-in speed can be determined very quickly and in a simple manner. It is possible to further improve the quality of the clutch-in process by means of correction factors which are multipliers for the basic clutch-in speed.

Abstract: In a control system for controlling a clutch coupled with an internal combustion engine for driving a vehicle off, the control operation for clutch engagement is carried out based on the level of power insufficiency of the engine. When the level of engine insufficiency is within a predetermined range, the operation for clutch engagement is controlled in accordance with the change in the amount of operation of an accelerating member without stopping the engaging operation of the clutch. In order to improve the performance experienced by the operator at drive-off, just after recovery from power insufficiency, the target clutch stroke to be followed is corrected by correction data determined on the basis of the difference between the target and actual clutch stroke at the time the engine has just recovered from its power insufficiency.

Abstract: The invention comprises mechanism for reducing hydraulic pressure on the engaged forward or reverse clutch when the decelerator pedal is fully depressed. The mechanism comprises an electric switch that is coupled to the decelerator pedal linkage for energizing a solenoid valve. The solenoid valve couples the modulation accumulator of the power shift tranmission to sump when the electric switch is closed. This decreases the hydraulic pressure on the engaged forward or reverse clutch so that it can slip if braking force is applied to the vehicle.

Abstract: The existence of autorotation of a load (e.g., a helicopter rotor system) coupled to the free turbine of a gas turbine engine is determined and a signal indicative thereof enables an integrator which, upon autorotation, integrates rate-based recovery anticipation provided thereto, the integrator output providing a time-composite bias signal to the main control portion of the engine fuel control to increase the speed of the gas generator of the engine in anticipation of rotor reengagement with the free turbine. The amount of recovery error is determined from the rotor speed error and is multiplied with the integrator output, the product being fed, upon completion of autorotation recovery, to the integrator input whose output now provides a controlled removal of the bias signal from the main control portion so as to minimize transients induced therein.

Abstract: A boring apparatus wherein the size in the axial direction of the shaft of the manual handle horizontally supported can be made small-sized. A clutch is composed of spherical bodies, a cylindrical body having formed therein hole portions for receiving the spherical bodies, spherical body pressing means for pressing the spherical bodies to the outside or inside of the cylindrical body, and an engagement member having recessed portions engaging with the spherical bodies which are projected to the outside or inside of the cylindrical body, and the boring apparatus is constructed by using the clutch.

Abstract: A microprocessor controlling a shuttle shift transmission may be programmed to effect a calibration of the final drive clutches in the transmission so that the microprocessor can efficiently effect engagement of each respective said clutch by applying the proper hydraulic pressure to cause proper engagement thereof. This method of calibrating the final drive clutches in the transmission includes braking the output shaft of the transmission so that any engagement of the selected final drive clutch being calibrated will cause a load to be applied to the engine. The hydraulic pressure is then incrementally increased until the engine RPM's decrease because of the load being placed on the engine. The value of this engagement hydraulic pressure is stored in the microprocessor for use when effecting engagement of the selected clutch during operation of the transmission. Service indicators are programmed into the microprocessor should the selected clutch not be capable of being calibrated.

Abstract: A torque converter slip control device used in an automatic transmission of an internal combustion engine of a vehicle has a torque converter to transfer engine torque to an input shaft of the automatic transmission. A feed-forward slip control subroutine controls a hydraulic circuit in a feed-forward control to vary the coupling efficiency of a lockup clutch to cause the torque converter to allow slippage at a rate suitable for cancelling a fluctuation of engine torque when the internal combustion engine is at rotational speeds higher than a preselected rotational speed higher than a predetermined fuel injection recovery speed at which an injection of fuel by a fuel system is recovered during the detection of the deceleration state of the vehicle by a deceleration senser.

Abstract: A slip control system for an automatic transmission of vehicle having fuel cut device for interrupting a fuel supply in a fuel cut zone, including a torque converter, lock-up clutch means provided comprising slip control device for controlling an engaging force of the lock-up clutch ranged from a lock-up condition in which a rotation speed of the input member of the torque converter is substantially the same as the output member of the torque converter to a slip condition in which a predetermined rotation speed difference is produced between the input member and output member, transient control device for controling the engaging force of the lock-up clutch for a predetermined period in connection with a switching operation in the fuel cut device between a fuel supply condition and a fuel cut condition for the engine at a predetermined value between the slip condition and a converter condition in which the lock-up clutch is fully released.

Abstract: A single lever control comprising a housing having a first recess, a shaft pivotably supported by the housing and having an axial bore, a shift member pivotably supported by the housing coaxially with the shaft and adapted to be operably connected to a clutch, the shift member being movable relative to a neutral position and having a second recess located radially inwardly of the first recess and aligned with the first recess when the shift member is in the neutral position, a plunger housed in the bore for movement axially of the shaft between first and second positions, and a mechanism for fixing the shift member to the shaft and permitting rotation of the shift member relative to the housing when the plunger is in the first position, and for fixing the shift member to the housing and permitting rotation of the shaft relative to the shift member when the plunger is in the second position, the mechanism including a member at least partially housed in the second recess, and a mechanism for moving the member r

Abstract: A shaft-turning device includes a driving element in the form of a hydraulic motor having a first pressure fluid inflow line, and an element for connection with a shaft to be turned in the form of a clutch having a second pressure fluid inflow line communicating with the first pressure fluid inflow line. The clutch includes locking elements being hydraulically forced counter to a spring force.

Abstract: Method and apparatus for controlling an electromagnetic clutch which is incorporated in a power transmission system of a vehicle to transmit a torque of an engine to drive wheels, when the vehicle is started on a road surface having a low coefficient of friction. The method or apparatus comprises: a step or device for increasing progressively a transmission torque which is transmitted by the electromagnetic clutch; a step or device for detecting a slip of the drive wheels on the road surface; and a step or device for reducing, upon detection of the slip of the drive wheels, the transmission torque of the electromagnetic clutch until the drive wheels have ceased to slip on the road surface.

Abstract: A slip control system of a lock-up clutch of an automatic transmission comprising a torque converter, lock-up clutch, slip control device for controlling an engaging force of the lock-up clutch to establish a slip control in which a predetermined rotation speed difference is allowed between the input member and output member when a vehicle operating condition is in a predetermined slip control zone, transient control device for carrying out a transient control by setting a transient control factor to increase a change in the engaging force of the lock-up clutch for a transient condition when the vehicle operating condition is transferred from a non-slip control zone to the slip control zone, and the transient control factor being determined in accordance with a vehicle operating condition just before the vehicle operating condition falls into the slip control zone.

Abstract: Disclosed is an engine-control apparatus in which an exhaust passageway of the engine is provided with plural sound deadening passages. A portion of the plural sound deadening passages is designed to be opened or closed by a shift valve on the basis of a predetermined switching characteristic, and the pressure of the exhaust gases is changed upon the switching of the shift valve. In order to prevent torque shock to the driven wheels which may occur attendant upon operation of the shift valve to open or close or in order to reduce probability that torque shock would occur, there is provided a torque regulating apparatus which permits an adjustment of torque generator by the engine, of a transmission efficiency of power to the driven wheel, or of a switching speed at which the shift valve is switched to open or close, or a change in the switching characteristic.

Abstract: A fuel supply control method for an engine having a fluid torque converter with a clutch for mechanically connecting the input and output sides of the fluid torque converter wherein the clutch is engaged and the fuel supply to the engine is stopped during speed reduction when the engine speed or the vehicular speed is over a predetermined value under a no load condition of the engine, such as during deceleration from a high speed. In the present method the clutch is released first at a predetermined speed and then the fuel supply to the engine is restarted when the speed, either engine speed or vehicular speed, drops below the first predetermined speed.

Abstract: A mechanical drive box (8) comprising at least a shaft (1; 3) and at least a drive member (10) on the shaft and for the transmission of the motion between the shaft and the drive member, a device for the transmission of motion comprising: a set of pawls (26) radially movable within seats (16) formed in the shaft (1), said pawls having internal and external ends (26A) shaped in radial and/or axial direction; inside said drive member, a housing (20) wherein a drive member is received having a shaped surface for cooperating with the external ends of said pawls; inside the shaft, an axial cavity (14) for housing a shaped core (30) axially movable for the operation, with elastic means (36) for reacting to the axial movement of said core; and on said core, shapings and inclined surfaces (40, 42) able to cooperate with the internal shaped ends of the pawls; the axial position of said core and/or the force of the elastic means acting on the core determine the radial position of said pawls and/or their resistance agai

Abstract: A control device for a boat engine, capable of controlling both clutch and throttle with a single lever. The control device has a supporting shaft installed within a housing. A clutch arm, an operating disk and a throttle arm are rotatably mounted on the supporting shaft in such order. The root portion of the operating lever radially extending through a slit of a peripheral portion of the housing is fixed to the periphery of the operating disk. The control device has a gear mechanism and a cam-link mechanism. The gear mechanism changes the first stage turning of the operating disk to a swing movement of the clutch arm, and then, locks the clutch arm after the clutch arm has been swung to an end position. The cam-link mechanism prevents swing movement of the throttle arm during the first turning stage of the operating disk and also provides a swing movement of the throttle arm during the latter turning stage of the operating disk.

Abstract: A method for controlling an AMT system (10) is provided including sensing vehicle start from stop operation, determining a target engine speed value (A) based upon the operator setting of the throttle pedal (THL) and modulating the fuel supplied to the engine (FC) to cause the engine speed (N) to rapidly equal and then be maintained at said target engine speed value. The clutch (16) is engaged at a relatively slow first rate (106), or a relatively rapid second rate (126) depending upon the value of engine speed (N) relative to the target value (A) and upon the value of the amount (FC) and/or the rate of change of the amount (dFC/dt) of fuel supplied to the engine. The first rate of engagement is a function of, and varies directly with, the value of operator setting of the throttle (THL).

Abstract: A control (42) and method for controlling an AMT system (10) is provided including sensing vehicle start from stop operation, determining a target engine speed value (A) based upon the operator setting of the throttle pedal (THL) and modulating the fuel supplied to the engine (FC) to cause the engine speed (N) to rapidly equal and then be maintained at said target engine speed value. The clutch (16) is engaged at a relatively slow first rate (106, 120), a relatively rapid second rate (126) or maintained at its current state of engagement (116) depending upon the value of engine speed (N) relative to the target value (A) and upon the amount and/or the rate of change of the amount of fuel supplied to the engine and/or the value of the difference between engine and input shaft speed.

Abstract: A speed changing device is provided for a fishing reel, which includes a first low speed gear engageable with a second low speed gear, a first high speed gear engageable with a second high speed gear, a shifter for selectively transmitting rotation of a handle shaft to the first low speed gear or the first high speed gear, and a wait mechanism having first and second springs which function so that, when the shifter is hindered from moving during the operation of the operating member, the movement of the shifter is temporarily delayed, and, when the hindrance is eliminated, the shifter automatically engages with the first low speed gear or the first high speed gear.

Abstract: A clutch control apparatus and method for a vehicle. The apparatus includes two sensors for detecting an engine speed Ne and a speed Nin of a clutch at an input side of a transmission and a conroller, respectively. The controller stores in advance a transmission coefficient C (referring to a speed ratio Nin/Ne) of the clutch and determines an output torque of the clutch using the transmission coefficient C and the engine speed Ne.In the method, an engine speed Ne and an input shaft speed Nin of a transmission are detected, then a speed ratio Nin/Ne is calculated. On the other hand, a transmission coefficient C is determined from a predetermined relation of the transmission coefficient C and the speed ratio Nin/Ne. Finally, the output torque of the clutch is determined using the transmission coefficient C and the engine speed Ne, for instance, by a formula which is C.multidot.(N.sub.e).sup.2.

Abstract: A clutch target position control system of an engine includes a clutch actuator for controlling a clutch stroke, a sensor for detecting a parameter corresponding to an accelerator pedal depression amount, an engine revolution sensor for detecting a revolution speed of the engine and an input shaft revolution sensor for detecting a revolution speed of the input shaft. The disclosed system utilizes the steps of: reading clutch engagement amounts from map tables of registered data corresponding to each of the sensors, the detected signals from each sensor being converted into and used as address signals; calculating a total of three read clutch engagement amounts; and controlling the clutch actuator to control the actual clutch engagement amount on the basis of the calculated total amount.

Abstract: A system for controlling clutch current of an electromagnetic clutch at release of an accelerator pedal of a vehicle in a low vehicle speed range. The clutch is disengaged when the accelerator pedal is released in the low vehicle speed range. The disengagement of the clutch and reduction of an engine are delayed so s to prevent oscillaiton of the speed of a power transmission system.

Abstract: A clutch mechanism suitable for automotive vehicles comprises a pre-assembled pressure plate/diaphragm spring/clutch cover assembly. This assembly is fixed to the end of a driving shaft by means of the clutch cover and bolts which pass through openings formed for this purpose in the pressure plate. A friction disk is mounted elastically on a hub on a driven shaft. It is gripped between the pressure plate and a reaction plate, the latter attached to the clutch cover by means of screws which have their heads welded to the cover. A clutch operating pin acts directly on the center of the pressure plate which is dished for the purposes of oil recovery and evacuation.

Abstract: A system has a start mode in which clutch torque of the clutch increases with increase of speed of an engine of the motor vehicle, a lock-up engagement mode in which the clutch torque is increased, and a drag mode in which the clutch torque is reduced to produce a drag torque, one of the modes being selected in accordance with depression of the accelerator pedal and speed of the vehicle. When a vehicle speed detector does not produce a vehicle speed signal for a predetermined period in the start mode at engine speed higher than a predetermined speed, a fail-safe signal is produced. In response to the fail-safe signal, the system operates to keep clutch torque.

Abstract: A quick release mounting assembly for a tire building drum includes a tapered plug and a chuck, both of which are securable to the hub of the drum. The assembly also includes a tapered rod receivable within the normal push rod of the tire building machine and ball locks movable by the tapered rod into and out of locking engagement with the push rod and chuck. The assembly also includes a flanged sleeve, telescoped over the push rod and movable into and out of axial locking engagement with the tapered plug to urge the drum axially either into or out of engagement with the tire building machine.

Abstract: A clutch for equipment which is powered by an internal combustion engine, comprising a drive member which is connected to an output shaft of the engine, a driven member connected to an input shaft of a power transmission device, a number of clutch plates which are interposed between the drive member and the driven member for frictional engagement between the two members by a pressure member which is axially moveable and is biased by a spring, a lifter member for disengagement of the two members against the biasing force acting on the pressure member, and a brake device for stopping the motion of the driven member when the power transmission between the two members is disconnected.

Abstract: An electromechanical device for activating a rotating post that moves the leaf of a swinging door on a vehicle, especially a mass-transit vehicle. An electric motor activates the column by means of an intermediate worm gear. The motor outtake shaft is coupled to the worm-gear intake shaft. A worm wheel is coupled to the worm-gear outtake shaft, which activates the rotating post. The electromechanical activating device contains an emergency mechanism for uncoupling the worm-gear outtake shaft from the worm wheel in relation to their rotation. The mechanism incorporates a coupling that can be disengaged between the outtake shaft and the worm wheel, which is mounted over it coaxially. The mechanism also involves several balls situated such that they can be forced into recesses in the outtake shaft while simultaneously engaging axial grooves in the inner surface of the worm wheel.

Abstract: A clutch slip control device for a lock-up torque converter has a clutch slip control valve and an operating range detecting valve which are operative to control a lock-up control pressure in a lock-up control chamber based upon a torque pressure representative of a torque transmitted by a turbine runner and upon a governor pressure and a throttle pressure representative of a vehicle speed and an engine load.

Abstract: An intake air control valve controls the amount of intake air of an engine. When a torque converter of an automatic transmission is locked for establishing the lock-up state, the control valve is closed to reduce the amount of air, so that engine speed is reduced without increasing the engine torque.

Abstract: A method and an apparatus of controlling an electromagnetic clutch incorporated in a power transmission system of a vehicle to transmit an output of an engine to the drive wheels of the vehicle is disclosed. An amount of electric current applied to the clutch is regulated to control an engaging action of said electromagnetic clutch, based on either a variation in rotating speed or torque of an output shaft of the electromagnetic clutch, or based on the frequency or number of variations per unit time in rotating speed or torque of the output shaft, as compared with the frequency or number of ignitions or combustions per unit time of the engine. In this way a variation in output torque of the engine is absorbed by the electromagnetic clutch for improved drivability, while a transmission power loss in the clutch is kept to a minimum for maximum fuel economy.

Abstract: A method for controlling an AMT system (10) is provided including sensing vehicle start from stop operation and providing closed loop control of both the clutch operator (30) and the fuel control (26) during such operation. A function (E) of the difference between actual (N) and desired (A) engine speed is calculated and compared to a reference (REF), and if greater than the reference, fuel supply to the engine (14) is not permitted to increase.

Abstract: An interlocking proximity switching device operated by the reciprocating member assembly of a hydraulic slave cylinder controlling the operation of the release mechanism of a motor vehicle mechanical clutch, the slave cylinder being hydraulically connected to a master cylinder having an input member operable by the motor vehicle clutch pedal. The switching device is adapted to close the motor vehicle starter relay circuit for a position of the slave cylinder output member, piston and/or push-rod, corresponding to full release of the clutch, such that the clutch must be fully released in order to allow starting the motor vehicle engine. Preferably, the switching device takes the form of a proximity transducer and of an appropriate circuitry for detecting full release of the clutch mechanism, irrespective of the amount of wear of the clutch.

Abstract: A driving device for bicycle comprising a pedal system having a left and a right pedal which repeat reciprocating motion and a hub section provided with a left and a right driving force transmission mechanism for transmitting the treading force applied to each pedal to the driving wheel independently, the aforesaid driving force transmission mechanism transmits the forward torque imparted through the pedal to the driving wheel but does not transmit the rearward torque and is provided with a clutch mechanism for disconnecting the connection between the driving wheel and the pedal when the driving wheel reverses as the bicycle is moved back. When the pedals are treaded for reciprocating motion, the driving wheel is rotated in the forward sense to move the bicycle forward and even when the left and right pedals are interlocked so that they can be treaded alternately, reversing the driving wheel is feasible so that the bicycle can be also moved back.

Abstract: In an actuation system having a pair of motors simultaneously operable for driving a movable member through a torque-summing gear box, there is a need to have a simply constructed, minimal cost, light weight quick disconnect mechanism operable to disconnect a motor which has failed fixed so that the other motor can continue to operate. The quick disconnect mechanism utilizes a tapered jaw clutch connecting driving and driven elements in the drive train between the motor and the torque-summing gear box, a ball detent mechanism for holding the clutch either engaged or disengaged and a short duty cycle solenoid. The solenoid can be momentarily energized to release the ball detent mechanism to permit an axial force derived from the driven member being back driven to separate the clutch and thereafter, the solenoid is de-energized to enable the ball detent mechanism to maintain the clutch disengaged.

Abstract: An automatic clutch control system and method for controlling a clutch for an automatic transmission when a clutch stroke sensor fails. The apparatus includes a clutch actuator for controlling a clutch stroke, a plurality of solenoid valves for controlling the clutch actuator, a clutch stroke sensor for measuring the clutch stroke, a control unit for feeding back a stroke signal detected by the clutch stroke sensor when requests for clutch engagement or disengagement are received and for controlling the solenoid valves so as to obtain a clutch moving speed defined by an engine rotational speed and other driving conditions. The control unit further includes a clutch engagement control section and a clutch disengagement control section for controlling solenoid valves for operating the clutch independently of the stroke signal when the stroke sensor fails.

Abstract: A hydraulic master-slave system for clutch actuation includes a clutch sensor system to continuously detect and measure clutch position and wear. One alternate preferred embodiment comprises a resistive strip and wiper assembly coupled to an electrical control circuit to control vehicle functions dependent upon clutch position and wear. A second alternate preferred embodiment employs an optical fence and optical interrupter designed to generate quadrature output to the electrical control circuit.

Abstract: A system for controlling the clutch torque of an electromagnetic clutch for a vehicle, having an accelerator pedal switch for producing an output signal when an accelerator pedal of the vehicle is released. A clutch current circuit including a transistor is provided for controlling the clutch current passing through a coil of the electromagnetic clutch. A logic gate circuit is provided to be responsive to the output signal of the accelerator pedal switch for controlling the transistor so as to decrease the clutch current to a low value approximating zero for a moment and thereafter to gradually increase the current to a predetermined value. The second circuit comprises a logic gate circuit and a pulse train generating circuit responsive to the output signal of the accelerator switch for producing a pulse train controlled by the logic gate circuit, and the duty ratio of the pulse train gradually varies so as to gradually increase the clutch current.

Abstract: A system for controlling the clutch torque of an electromagnetic clutch for a vehicle having an accelerator pedal switch for producing an output signal when an accelerator pedal of the vehicle is depressed. A clutch current circuit including a transistor is provided for controlling the clutch current passing through a coil of the electromagnetic clutch. A logic gate circuit is provided responsive to the output signal of the accelerator pedal switch for controlling the transistor so as to decrease the clutch current to a low value and thereafter to gradually increase the current to a rated value.

Abstract: A control system for automatic clutch is disclosed wherein a clutch torque is detected and the engagement of the clutch is controlled such that the detected clutch torque is brought into agreement with a creep clutch torque when a vehicle is under a pre-start-up operating condition and into agreement with a target clutch torque determined for engine operating condition when the vehicle is not under the pre-start-up operating condition.

Abstract: The control device comprises an electric motor-gearbox unit (2) acting on the thrust bearing (16) of a clutch (1) and a switching device (3) comprising four transistors adapted to apply the voltage from the battery (30) with either polarity to the motor (20) of the motor-gearbox unit (2) according to whether the output of "AND" gates (41 and 42) is at 1. This occurs, when end of travel switches (28 and 29) are closed, when positive pulses appear at the output (40c) of the microprocessor (40) and according to whether the output (40d) is at "0" or "1". The microprocessor produces pulses of defined duration at its output (40c) with a recurrence frequency which is a direct function of the frequency produced by the sensor (50) responsive to the rotation speed of the motor when above a threshold higher than the idling speed, in the clutch engagement phase, and which is such in the clutch release phase that the pulses are adjacent.

Abstract: A push rod extends through the main shaft of a change speed gear transmission to release a friction clutch on that shaft. The other end of the push rod is engaged by a hydraulic actuator. An oil seal assembly for the push rod is prevented from being damaged by leakage of hydraulic oil, and this is accomplished by means of an air gap and vent between the hydraulic actuator and the oil seal assembly.

Abstract: A clutch control system for a continuously variable transmission includes a mode determination system which samples input signals including position of the neutral-drive selector, driver demand, engine speed, vehicle speed, and clutch input speed. From these signals the operating mode is determined and the clutch control system operating mode is set. In starting the vehicle, a minor pressure feedback loop and a major engine speed feedback loop are used. When the clutch is locked up, these control loops are not employed in regulating the vehicle operation.

Abstract: A single lever control for use with an engine including a clutch and a throttle, the control comprising a housing, a control member rotatably mounted on the housing for movement between a neutral position and a full throttle position through a clutch engaging interval and then a clutch engaged throttle advancing interval, a clutch drive mechanism adapted to be connected to the engine clutch and selectively operably connected to the control member for providing engagement of the engine clutch in response to rotation of the control member through the clutch engaging interval, and a throttle drive mechanism adapted to be connected to the engine throttle and selectively operably connected to the control member for providing substantial advancement of the engine throttle in response to rotation of the control member through the clutch engaging interval.

Abstract: A fishing reel is provided which includes a reel body with a pair of side frames, a spool mounted on a spool shaft disposed between the side frames, and a drive mechanism. The drive mechanism includes a drive shaft rotatably mounted relative to the side frames, a handle mounted on one end of the drive shaft, a pinion supported on the spool shaft to rotate and slide axially relative thereto, and a main gear rotatably mounted relative to the drive shaft and engageable with the pinion. The reel also includes a drag mechanism which includes a first transmission mechanism responsive to a driving force from the drive shaft to transmit an adjustable transmission force to the main gear. The reel also includes a second transmission mechanism mounted on the drive shaft and selectively engageable with the main gear to transmit the driving force from the drive shaft directly to the main gear independently of the first transmission means.

Abstract: A drive mechanism for a machine such as a machine tool or robot includes a rotatable shaft, e.g. a lead screw or spindle, drivingly connected with a movable element, e.g. a worktable or tool support, in the machine, a drive shaft for rotation by a motor and a coupling unit, e.g. clutch or gear transmission, for drivingly connecting the drive shaft with the rotatable shaft to move the movable element in a predetermined form of movement under a variable load in the machine. Encoders are provided in a rotation-sensing relationship with the drive shaft and the rotatable shaft, respectively, to feed two trains of rotation-responsive pulses into a differential counter which provides a difference in angle of rotation signal representing an instantaneous torque produced at the drive coupling unit between the drive and rotatable shafts.

Abstract: A method and an apparatus of controlling an electromagnetic clutch incorporated in a power transmission system of a vehicle to transmit an output of an engine to the drive wheels of the vehicle is disclosed. An amount of electric current applied to the clutch is regulated to control an engaging action of said electromagnetic clutch, based on either a variation in rotating speed or torque of an output shaft of the electromagnetic clutch, or based on the frequency or number of variations per unit time in rotating speed or torque of the output shaft, as compared with the frequency or number of ignitions or combustions per unit time of the engine. In this way a variation in output torque of the engine is absorbed by the electromagnetic clutch for improved drivability, while a transmission power loss in the clutch is kept to a minimum for maximum fuel economy.