Abstract: A tractor is disclosed having an engine fitted with a speed governor, drive wheels, a transmission connecting the engine to the drive wheels, a controller serving to select the effective transmission ratio, and an engine driven power take-off (PTO) shaft for driving ancillary equipment connected to the tractor. When in a part load operating mode in which the PTO shaft is connected to drive an implement and the tractor is moving, the governor is set to maintain the engine working point to follow a selected speed governor line on the speed/load map of the engine. The controller is operative to initiate a change in the transmission ratio when the engine speed cannot be maintained within the specified tolerance of the desired engine speed.

Abstract: A tractor is disclosed having an engine 10 fitted with a speed governor, drive wheels 22, a transmission 20 connecting the engine 10 to the drive wheels 22, a controller 26 serving to select the effective transmission ratio, and an engine driven power take-off (PTO) shaft 24 for driving ancillary equipment connected to the tractor. When in a part load operating mode in which the PTO shaft 24 is connected to drive an implement and the tractor is moving, the governor is set to maintain the engine working point to follow a selected speed governor line (110, 112, 114) on the speed/load map of the engine. The controller 26 is operative to initiate a change in the transmission ratio when the engine speed cannot be maintained within the specified tolerance of the desired engine speed.

Abstract: A method for controlling a continuously variable transmission of a work machine during a shuttle shift is disclosed. The method may generally include initiating a directional swap by disengaging an off-going directional clutch of the continuously variable transmission and slipping an on-coming directional clutch of the continuously variable transmission to decelerate the work machine in an off-going direction. In addition, the method may include estimating a total amount of energy to be dissipated in the on-coming directional clutch during the shuttle shift, comparing the total amount of energy to a predetermined energy threshold and, if the total amount of energy is equal to or exceeds the predetermined energy threshold, performing the reversion action to complete the shuttle shift, wherein the reversion action corresponds to an action taken to engage one of the off-going directional clutch or the on-coming directional clutch so as to permit the shuttle shift to be completed using ratio changing.

Abstract: An autofunction control system for motor vehicles comprising an engine, a transmission and an accelerator, the position of the accelerator defining a set ERPM, the system configured to define a desired percentage of maximum available power for each set ERPM, the system configured to control the transmission ratio of the transmission to load the engine at least to the desired percentage of power, wherein the desired percentage of power is a function of the set ERPM when the set ERPM is between a low threshold and a high threshold, and wherein the system is configured to control the transmission ratio to load the engine closest to the maximum available absolute power for the engine for a set ERPM above the high threshold ERPM.

Abstract: A method for performing a shuttle shift with a continuously variable transmission of a work machine is disclosed. The method may generally include adjusting a swash plate angle of a hydrostatic power unit of the transmission in a first direction to reduce a travel speed of the work machine in an off-going direction, initiating a directional swap between an off-going directional clutch of the continuously variable transmission and an on-coming directional clutch of the continuously variable transmission while the work machine is traveling in the off-going direction and adjusting the swash plate angle of the hydrostatic unit in a second direction after the initiation of the directional swap to reduce slippage across the on-coming directional clutch, wherein the second direction is opposite the first direction.

Abstract: A method for controlling a continuously variable transmission of a work machine during a shuttle shift is disclosed. The method may generally include initiating a directional swap by disengaging an off-going directional clutch of the continuously variable transmission and slipping an on-coming directional clutch of the continuously variable transmission to decelerate the work machine in an off-going direction. In addition, the method may include estimating a total amount of energy to be dissipated in the on-coming directional clutch during the shuttle shift, comparing the total amount of energy to a predetermined energy threshold and, if the total amount of energy is equal to or exceeds the predetermined energy threshold, performing the reversion action to complete the shuttle shift, wherein the reversion action corresponds to an action taken to engage one of the off-going directional clutch or the on-coming directional clutch so as to permit the shuttle shift to be completed using ratio changing.

Abstract: A method for performing a shuttle shift with a continuously variable transmission of a work machine is disclosed. The method may generally include adjusting a swash plate angle of a hydrostatic power unit of the transmission in a first direction to reduce a travel speed of the work machine in an off-going direction, initiating a directional swap between an off-going directional clutch of the continuously variable transmission and an on-coming directional clutch of the continuously variable transmission while the work machine is traveling in the off-going direction and adjusting the swash plate angle of the hydrostatic unit in a second direction after the initiation of the directional swap to reduce slippage across the on-coming directional clutch, wherein the second direction is opposite the first direction.

Abstract: An autofunction control system for motor vehicles comprising an engine, a transmission and an accelerator, the position of the accelerator defining a set ERPM, the system configured to define a desired percentage of maximum available power for each set ERPM, the system configured to control the transmission ratio of the transmission to load the engine at least to the desired percentage of power, wherein the desired percentage of power is a function of the set ERPM when the set ERPM is between a low threshold and a high threshold, and wherein the system is configured to control the transmission ratio to load the engine closest to the maximum available absolute power for the engine for a set ERPM above the high threshold ERPM.

Abstract: A process for managing power demand of simultaneously operating appliances some of which are capable of executing multiple cycles of operation.

Abstract: A system and process for managing power demand of appliances. The process includes forecasting for each of the appliances a future energy consumption profile corresponding to its setting, summing the future energy consumption profiles, determining if the sum indicates one or more peaks in power demand, and providing a new energy consumption profile to one or more of the appliances to level the total power consumed by the appliances in the future.

Abstract: A method for controlling the defrost of an evaporator in a refrigeration appliance provided with a compressor and in which a temperature sensor (TP) is used for detecting the temperature inside a cell of the appliance, comprises the steps of estimating the temperature of the evaporator on the basis of the cell temperature (TP) and of a mathematical model of the refrigeration appliance, and controlling the compressor on the basis of the estimated temperature of the evaporator.

Abstract: A method of controlling the temperature inside a cavity of a cooling appliance provided with a temperature sensor inside the cavity and with an actuator for adjusting the cooling capacity of the appliance, the food temperature is estimated on the basis of a value from the temperature sensor and on a predetermined function of a status of the actuator.

Abstract: A method of controlling the temperature inside a cavity of a cooling appliance provided with a temperature sensor inside the cavity and with an actuator for adjusting the cooling capacity of the appliance, the food temperature is estimated on the basis of a value from the temperature sensor and on a predetermined function of a status of the actuator.

Abstract: A method for controlling the program of a washing machine comprises the recording of the amount of water supplied to the tub of the washing machine, the assessment of the amount of free water present in the tub (T), the evaluation of the amount of water absorbed by the load by subtracting the amount of free water from the amount of water supplied to the tub (T), the estimate of the specific absorption of the load based on the water absorbed and on free water, and the calculation of a load equivalent based on the specific absorption and on the amount of water absorbed by the load, such load equivalent being related to the load in the machine and being used for controlling the program thereof.

Abstract: A refrigerator comprises a compressor and control means for controlling such compressor in response to the temperature inside the refrigerator. The control means are adapted to detect how the temperature changes inside the refrigerator due to the loading of a warm food item, and to adjust the cooling capacity of the compressor accordingly.

Abstract: A method for controlling the defrost of an evaporator in a refrigeration appliance provided with a compressor and in which a temperature sensor is used for detecting the temperature inside a cell of the appliance, comprises the steps of estimating the temperature of the evaporator on the basis of the cell temperature and of a mathematical model of the refrigeration appliance, and controlling the compressor on the basis of the estimated temperature of the evaporator.

Abstract: A method for controlling a refrigerator having a variable speed compressor and at least two compartments (FR, FZ) cooled to respective temperatures and comprising sensor devices (TR, TZ) for generating control signal responsive to cooling demands of the respective compartments comprises the step of providing the control system with a signal indicative of the total cooling demand on the basis of the sum of each compartment cooling demand, such signal being used to drive the variable speed compressor according to said total cooling demand.

Abstract: A method for controlling the program of a washing machine comprises the recording of the amount of water supplied to the tub of the washing machine, the assessment of the amount of free water present in the tub (T), the evaluation of the amount of water absorbed by the load by subtracting the amount of free water from the amount of water supplied to the tub (T), the estimate of the specific absorption of the load based on the water absorbed and on free water, and the calculation of a load equivalent based on the specific absorption and on the amount of water absorbed by the load, such load equivalent being related to the load in the machine and being used for controlling the program thereof.

Abstract: A process for managing and curtailing power demand of appliances and components thereof, in which each appliance has an user interface for setting working parameters of the appliance, comprises the steps of assessing for each appliance and/or component an energy consumption profile corresponding to its setting, comparing the energy consumption profiles in order to check if their sum leads to one or more peaks in power demand, and providing one or more new energy consumption profiles in order to level and/or reduce the total power absorbed by appliances or components thereof.

Abstract: A method for controlling a refrigerator having a variable speed compressor and at least two compartments (FR, FZ) cooled to respective temperatures and comprising sensor devices (TR, TZ) for generating control signal responsive to cooling demands of the respective compartments comprises the step of providing the control system with a signal indicative of the total cooling demand on the basis of the sum of each compartment cooling demand, such signal being used to drive the variable speed compressor according to said total cooling demand.