Abstract: An intake control device includes: an air cleaner disposed above an engine; a pair of right and left intake ducts projecting toward a front of a vehicle body from the air cleaner to take an outside air in the air cleaner; and a sensor unit coupled to a throttle cable extended from a throttle grip, and detecting an operation amount of accelerator, in which the sensor unit is disposed between the pair of right and left intake ducts at a position above the engine and below the air cleaner.

Abstract: The vehicle-use speed control apparatus sets a virtual preceding vehicle assumed to run at a target speed at a predetermined initial distance ahead of the own vehicle when the brake pedal is operated causing a relative speed between the actual vehicle speed and the target speed exceeds a predetermined value, calculates an initial value of a performance index for approach and alienation based on the initial distance and the target speed. Thereafter, the vehicle-use speed control apparatus repeatedly calculates a following distance to the virtual preceding vehicle based on a time elapsed from when a speed control start condition is satisfied, the current relative speed and the initial distance, and a target relative speed based on the initial distance, the initial value of the performance index and the following distance, and controls the vehicle speed based on the difference between the target relative speed and the actual relative speed.

Abstract: An axle torque control system includes an axle torque request module that receives an axle torque request and that selectively outputs the axle torque request. An axle torque conversion module receives the axle torque request and converts the axle torque request to an engine torque request. A rate limit module receives the engine torque request and a pedal engine torque request and selectively adjusts the engine torque request based on the pedal engine torque request.

Abstract: To provide an accelerator opening degree detecting apparatus for a two-wheeled vehicle, which is not damaged even if the two-wheeled vehicle takes a fall, and is excellent in waterproofness and weather resistance, a rotating shaft (11) is rotatably supported to a fixed member (10), an accelerator opening degree sensor (13) is arranged in one end (11b) of the rotating shaft (11), a rotating drum (12) is arranged in the other end (11a), the rotating drum (12) and an accelerator grip (16) are coupled by a coupling member (17), and the accelerator grip (16) and the rotating drum (12) are synchronously rotated.

Abstract: In a method to avoid bucking oscillations during acceleration of vehicles, the engine torque is varied. To reliably prevent bucking oscillations without adversely affecting the acceleration behavior and exhaust behavior, it is proposed that during operation of the gas pedal, the engine torque be varied according to a stipulated engine torque curve between a lower torque value and an upper torque value, in which the engine torque curve has a local maximum adjacent to the lower torque value and has a local minimum between the local maximum and the upper torque value.

Abstract: The present invention relates to a fuel injection amount control system for a diesel engine to control a fuel injection amount electrically by an electronic-hydraulic governor. In the invention, when a driver steps on the accelerator at 100% in acceleration to raise the engine speed suddenly and vigorously, a DC linear motor transfers a control rack to the full-rack position according to the engine speed to bring the necessary amount of fuel injection. The process is that the rack position detects the second rack position firstly and the control rack leaves the second rack position accordingly, then the DC linear motor suspends the control rack at the first rack position for a certain time under a signal, afterwards and the control rack is positioned to the full-rack position by another command given to the DC linear motor to operate again.

Abstract: A method for regulating the full-load injection quantity of a diesel internal combustion engine having a fixed steady state full-load injection quantity includes the following phases: a first transient phase, in which the full-load injection quantity is increased to a value which exceeds the steady state full-load injection quantity; a second time-limited phase, in which the full-load injection quantity is maintained at the excess level and, at the end of this phase, is reduced to the full-load injection quantity in the steady state; and a third phase, in which the full-load injection quantity in the steady state is supplied to the diesel internal combustion engine in a known way.

Abstract: An apparatus and method are provided for detecting cylinder misfires in an internal combustion engine of a motor vehicle which provides a good signal to noise ratio and is capable of distinguishing from noise related events such as misfire induced bobble and harsh clutching maneuvers. Crankshaft rotation is sensed and crankshaft velocities are measured for each cylinder. Changes in angular velocity are determined and correspond to each of a plurality of cylinder firing events. With a first averaging filter, angular velocity changes are sorted over a predetermined series of cylinder firings and the two middle angular velocity changes are averaged to provide an average change in velocity value. A deviation is determined between the change in angular velocity for a selected cylinder and the average change in velocity.

Abstract: A method and apparatus for limiting the fuel to an internal combustion engine to reduce emissions of the engine. Means responsive to one or more operating conditions of the engine are provided for adjustably setting the maximum open position of a throttle of the engine so as to reduce and limit the maximum fuel volume flow rate to the engine. The operating conditions include the fuel flow rate called for by an accelerator, the condition of the transmission of a vehicle in which the engine is installed, the slope or incline on which the vehicle is located, the vehicle speed, and the speed and direction of any wind.

Abstract: The present invention provides a very simple structure to delay high fuel delivery to a turbocharged engine until a sufficient turbocharger boost pressure is available for adequate combustion, by providing a simple dashpot to limit movement of the throttle shaft. A brea-away throttle lever is used so that the operator can position the control lever at any position, even though the position of the throttle shaft itself is being limited by the dashpot. Preferably, the damping structure is entirely housed within the fuel injector pump, where it will be safe from debris, and constantly flushed with clean fuel.

Abstract: In a governor device of a diesel engine, a control rack of a fuel injection pump is adapted to be controllably actuated by a balance between a governor spring and an engine revolution speed responsive means. A speed control member is adapted to be manipulated for adjusting a tension force of the governor spring. A fuel limiting actuation member serves to prevent an excessive fuel flow from being injected when the speed control member is manipulated for a quick acceleration. A quick acceleration state detecting means serves to detect a quickly accelerated state of the engine so as to selectively change over the fuel limiting actuation member to a fuel limiting position and to a fuel limitation cancelling position depending on the lapse of time.

Abstract: A fuel injection pump of the distribution type includes a load timer, and the load timer has a relief hole formed axially in a governor shaft, a first communication passage extending through a peripheral wall of the governor shaft surrounding the relief hole, and a second communication passage extending through a peripheral wall of a governor sleeve. One of the first and second communication passages has first and second control holes spaced axially from each other. The stroke of movement of the governor sleeve has a first movement region where the area of communication between the first control hole and the other communication passage decreases as the governor sleeve is retracted and a second movement region where the area of communication between the second control hole and the other communication passage increases as the governor sleeve is retracted.

Abstract: A servocylinder unit for adjusting an amount of fuel fed to a vehicle drive engine and comprising a piston displaceable in a cylinder, a first pre-stressed spring for biasing the piston to its initial position, a first stop for supporting the first spring and displaceable along the longitudinal axis of the cylinder, a second pre-stressed spring extending between the first stop and a base of the cylinder, and a second stop fixed to the cylinder and engageable by the first stop under bias of the second spring. The first spring enables regulation of a number of revolutions of the vehicle engine, and the second spring, which has a larger pre-stress than the first spring and is less rigid than the first spring, is compressible to enable switching off of fuel feeding.

Abstract: A pumping apparatus for supplying fuel to an internal combustion engine has a high pressure pump, an adjustable throttle member which is utilized to control the fuel flow from a low pressure to the high pressure pump. An electromagnetic actuator is utilized to adjust the setting of the throttle member and a hydraulic damping device is provided to damp the movement of the throttle member.

Abstract: When motor vehicles are driven, discontinuities that lead to load spikes arise between overrunning and running under load. The load spikes are avoided by means of a discontinuous increase in fuel quantity, which makes it possible for the engine to come gently to rest in its suspension, to bypass the drive play, and to convert the changes in increased fuel quantity without bucking. By incorporating drag elements into the connection between the arbitrary actuation of an intermediate lever, which affects the fuel injection quantity, and an idling stop, a discontinuous adjustment of the intermediate lever is attained.

Abstract: In the embodiments of the invention described in the specification, a fuel injection pump for an internal combustion engine provides a delayed response to accelerator pedal depression for a selected time period including the time when the engine load passes through zero, thereby avoiding load shock changes. For this purpose, a throttle or bypass valve is provided which decreases the amount of fuel provided to the engine to the zero load fuel demand for the selected time period.

Abstract: In a fuel injection pump for internal combustion engines for motor vehicles, a damping device is provided to eliminate so-called vehicle bucking. The device allows rapid adjusting movements of an rpm adjusting lever, which is connected to the driving lever, to affect the supply quantity setting of the fuel injection pump only with a delay. To this end, the damping device has a damping chamber defined by a damping cylinder and a damping piston displaceable therein. The damping chamber communicates with the pump interior via two parallel throttles and via counter-parallel check valves located in series with the parallel throttles. The damping piston is connected to a damper lever on which the rpm adjusting lever is supported via a pre-stressed drag spring.

Abstract: A speed governor for injection pumps in internal combustion engines with a regulating sleeve which at maximum rotational speed of the internal combustion engine is displaced as a function of speed within the regulating sleeve travel against the force of the main regulating spring that acts on a force transmitting lever. The regulating movements of the force-transmitting lever are transmitted onto the fuel delivery adjusting member of the injection pump by means of at least one intermediate lever. The internal combustion engine rotational speed can be influenced by means of an operating element adapted to be controlled. In case of a needed change of the beginning of the full-load speed regulation of the internal combustion engine, the spring travel of the main regulating spring is influenced by means of a force-transmitting element.

Abstract: In a fuel injection system for an internal combustion engine, a control lever shaft interlocked with a governor spring is supported by a pump housing of a fuel injection pump with one and the other ends respectively located interiorly and exteriorly of the pump housing. A control lever for controlling the fuel injection amount is fixedly mounted on the other end of the control lever shaft. A cancel lever connected to an accelerator pedal through an accelerator rod is freely fitted on the other end of the control lever shaft. The control lever and the cancel lever are disposed to abut against each other on a leading side of the cancel lever with reference to the angular movement thereof in a fuel decreasing direction. A cancel spring is connected between the control lever and the cancel lever to allow them to be angularly moved together. A dash pot for restricting the speed of movement of the control lever in a fuel increasing direction is arranged exteriorly of the pump housing.

Abstract: A governor system for controlling the setting of a fuel control member of a fuel injection pump includes a manually operable member, a connecting device connecting said members, the connecting device being such as to allow movement of the fuel control member independently of the manually operable member. The system includes a pivot lever upon which acts a speed responsive device which moves the lever in opposition to the force exerted by resilient means in the middle speed range of the associated engine. The lever is connected to the fuel control member through a dash-pot device which acts in the middle speed range to adjust the setting of the fuel control member if there is a sudden change of engine speed. A high speed spring and an idling spring are also provided to provide a normal two speed governor action.

Abstract: A fuel control system for an internal combustion engine in which the idle fuel quantity is adjusted to maintain a predetermined desired idle speed and in which the transition between the idle fuel quantity and a scheduled off-idle fuel quantity is blended to provide for smooth engine operation.

Abstract: A governor sleeve is axially displaceable on a stationary governor shaft and has an inner space which is defined by one end of the governor shaft and which communicates with the inner chamber of a pump housing charged with fuel. The inner space varies in volume drawing thereinto and discharging therefrom fuel in response to axial displacement of the governor sleeve.

Abstract: A governor sleeve is axially displaceable on a stationary governor shaft and has an inner space which is adjoined by the governor shaft and which communicates with the inner chamber of a pump housing charged with fuel. The inner space varies in volume drawing thereinto and discharging therefrom fuel in response to axial displacement of the governor sleeve. According to the present invention, there is provided a helical groove which is formed in the outer cylindrical surface of the governor shaft or the inner cylindrical surface of the governor sleeve. Such groove effects a forced fuel conveying action of forcedly, though yieldingly, conveying fuel from the inner chamber to the inner space, which is effective in preventing an acceleration jerk and smoky exhaust upon rapid engine acceleration.

Abstract: A control apparatus for internal combustion engines is proposed, in which the adjustment range or the full-load position of a supply quantity adjustment member of the fuel metering apparatus is varied in accordance with the absolute pressure of the aspirated air in the suction tube of the engine in order to attain optimal combustion at the greatest possible torque. The control apparatus (FIG. 1) includes a pneumatic pressure converter and a pneumatic adjustment member. The pneumatic pressure converter, in a first pressure chamber, contains an evacuated diaphragm pressure box exposed to the aspirated air pressure (p.sub.L), which acts counter to a second diaphragm pressure box exposed in its interior to atmospheric air pressure (p.sub.A) and located in a second pressure chamber connected to a compressed air source. Both pressure boxes are connected via an actuation member supporting a valve member, and the valve member reduces the servo air pressure (p.sub.S) to a control air pressure (p.sub.

Abstract: A governor sleeve is axially displaceable on a stationary governor shaft and has an inner space which is adjoined by the governor shaft and communicated with the inner chamber of a pump housing charged with fuel. The inner space varies in volume drawing thereinto and discharging therefrom fuel in response to axial displacement of the governor sleeve. There is provided valve and channel means which establishes restricted communication between the inner space and the inner chamber upon displacement of the governor sleeve in the direction to produce contraction of the inner space and substantially unrestricted communication between same upon displacement of the governor sleeve in the opposite direction to produce expansion of the inner chamber in order to prevent an acceleration jerk and smoky exhaust.

Abstract: An electronic governor control for an automotive engine that prevents the speed of the engine from exceeding a predetermined limit. The electronic circuitry responds to ignition pulses and limits the throttle opening of the vehicle to maintain the predetermined speed limit. The electronic governor control also includes circuitry to prevent engine overshoot of the predetermined limit by monitoring the rate of acceleration and adjusting the predetermined limit to anticipate and initiate governor control prior to the engine reaching the predetermined speed limit. Circuitry is also included which allows the governor control to retain control of the engine until the accelerator control reduces the speed of the engine to a speed value below the predetermined limit.