Abstract: Disclosed is an adaptive control method applicable to an excavator. The adaptive control method includes: acquiring detection parameters of the excavator, the detection parameters comprising a displacement of an electric control handle of the excavator and angle information of the excavator; identifying a current working condition of the excavator based on the detection parameters; and adjusting control parameters of the excavator based on the current working condition. According to the adaptive control method provided by the present disclosure, the current working condition is identified by using the displacement of the electric control handle and the angle information of the excavator, and then the control parameters of the excavator are adjusted based on the current working condition, so that the control parameters are automatically adjusted with change of the current working condition, which improves control efficiency of the excavator.

Abstract: A method and system in accordance with the present invention provides for improved lambda control utility that includes the following: the introduction of an inner control loop to the lambda control based on the pressure of the gaseous fuel downstream of the fuel control valve and upstream of the carburetor relative to the pressure of the air at the inlet of the carburetor, and the introduction of operating point based dynamic parameter scheduling in the lambda feedback control loop. The combination of these enhancements, working together, will allow an engine system to consistently meet the mandated performance requirements via tighter lambda control in the presence of set point changes and load disturbances.

Abstract: A governor device comprises a first lever connecting a governor lever to a rotary speed setting lever interlockingly, a second lever pivotally supported by the first lever, and a third lever pivotally supported by the second lever, regulated its rotation amount by the second lever and interlocked with a governor weight. A fuel injection compensation spring is provided between the first lever and the second lever so as to bias them for decreasing the rotary speed for a fixed amount at the time of low speed rotation. A compensation starting rotary speed setting device, which is a set load changing means for the fuel injection compensation spring, is provided on the first lever near the fuel injection compensation spring.

Abstract: A method is provided for optimizing operation of a work vehicle with an engine for propelling the vehicle. The method includes detecting at least one operating parameter, determining an optimized engine speed parameter value with regard to fuel consumption, reduced emissions and/or increased productivity on the basis of the detected operating parameter and stored information regarding fuel consumption, emissions and/or productivity, and controlling the engine in accordance with the determined engine speed parameter value.

Abstract: Idle speed stability is imparted to a compression ignition engine by processing data values for actual engine speed and desired engine speed to yield a data value for engine speed error; processing (22) the data value for engine speed error according to a governor algorithm for yielding a data value for a mass fuel rate for governed fueling of the engine; c) processing (24) the data value for mass fuel rate for governed fueling of the engine and the data value for actual engine speed to yield a data value for a quantity of fuel to be injected into an engine cylinder during an ensuing stroke of a piston within the cylinder; and d) injecting (30) that quantity of fuel into the cylinder during that stroke.

Abstract: A controlling system is provided for use with a motor vehicle which includes auxiliary equipment usually being pneumatically powered and designed to be operated by a power take-off switch wherein throttle control by the accelerator pedal of the motor vehicle is blocked during operation of the power take-off equipment and wherein control of vehicle motor operating speed is controllable through a throttle control system accessible within the vehicle driving compartment or externally. The apparatus is preferably all pneumatically controlled and is connected to receive pressurized air from the vehicle air tank which itself is also used to operate other equipment such as air brakes and the power take-off equipment itself.

Abstract: An actuator for an automatic cruising system comprising a control shaft rotatably provided in a casing, an electromagnetic clutch connected to the control shaft at input side thereof, a Ferguson's type reduction gear having a static internal gear the rotation of which is restricted or permitted according to on-off operation of the electromagnetic clutch, a pinion connected to a motor, a rotary internal gear fixed to the control shaft, and an external linkage mechanism having an output drum for transmitting the motion of the control shaft through an output cable and an input drum for receiving and transmitting an acceleration signal provided by the accelerator pedal through an input cable with the accelerator signal overriding the motor's motion.

Abstract: Linkage is disclosed for adjusting the position of a diesel engine injection pump control rack in dependence on the position of the driver's accelerator pedal and also on a system for automatically maintaining the vehicle speed at a desired value. The injection pump rack is positioned by means of a pneumatic piston-cylinder assembly and connecting linkage. The pressure in the piston-cylinder assembly is adjusted by means of a driver-controlled valve in a supply line from a pressure source, and this valve is adjusted by the driver's accelerator pedal. A normally open valve is also connected in the pressure circuit and a normally closed exhaust valve is provided. When the automatic speed control system is in operation, the driver fully opens the driver-controlled valve (by fully depressing his foot pedal) and the automatic system adjusts the other valves to hold the speed at the desired value.

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: There is disclosed a speed control system for a diesel-powered vehicle in which a sensing element responsive to the speed of the vehicle or engine, preferably responsive to the vehicle speed, is connected through control means to close the fuel supply to the diesel engine, thereby permitting a preset limitation on vehicle and/or engine speed. The control system is designed as a retrofit to existing diesel engines and utilizes conventional elements such as the shut down lever of these engines, thereby avoiding any significant engine alterations or modifications.

Abstract: A fuel injection pump assembly in which fuel delivered from individual cam lobe driven pump plungers is controlled by an engine driven drive shaft rotated control valve, the position of which, relative to the spill ports from the plungers, is controlled by means of a hydraulic governor. A separate governor cam lobe is used to also actuate the plungers whereby fluid supplied to the hydraulic governor is at a flow rate proportional to pump speed and therefore, engine speed.

Abstract: A method and apparatus for correcting the fuel quantity delivered by a fuel injection apparatus to an internal combustion engine, in particular for correcting the full-load fuel quantity per stroke, whereby a control value corresponding to the fuel injection quantity per time unit is formed and is converted into a control value corresponding to the fuel injection quantity by means of division of a value dependent on the rpm, the injection quantity per stroke being corrected by means of an adjustment of the fuel quantity control device of the fuel injection apparatus in accordance with the deviation of this converted control value from a set-point value.

Abstract: A fuel quantity regulator for self-igniting internal combustion engines having a fuel quantity regulator rod, an actuator for the regulator rod and an rpm governor. Between the actuator and the regulator rod there is interposed a rocker arm and an intermediate lever. The rocker arm is connected with the actuator, and the intermediate lever is connected to the regulator rod. During correct operation, the rocker arm engages a recess in the intermediate lever and as a result the actuator movement is transmitted to the regulator rod. When an error signal is generated, however, the rocker arm disengages the recess in the intermediate lever, and as a result the regulator rod is disconnected from the actuator so that only the rpm governor is operational relative to the regulator rod.

Abstract: An idle speed-limiting speed engine governor utilizes a friction damped air piston as the sole speed setting means which actively opposes the speed responsive flyweights in a particular range of engine speed operation, the governor limiting speed being controllable by adjusting the air pressure acting against the piston. A minimum droop governor characteristic results with hysteresis limited by minimum friction damping of the piston. A multi-condition air pressure control system is disclosed which is capable of providing various operational modes for the air controlled limiting speed governor.

Abstract: A control apparatus for limiting the fuel supply quantity of a fuel injection pump for internal combustion engines such as Diesel engines or the like by means of which an automatically controlled additional starting quantity of fuel is variable in accordance with temperature which comprises a limit stop displaceable by the pressure of a control medium and connected with a control piston and including a starting detent which varies its position in accordance with temperature; the limit stop in its first terminal position being arranged to determine the starting setting and in its other terminal position under the control of the pressure of the control medium, being arranged to determine the full-load setting of the fuel supply quantity adjustment member of the injection pump, a starting setting for a warm engine being controlled by the starting detent which limits the starting setting to the full-load setting or below.