A system for automatically controlling operation of a milling drum on a cold planer includes an input device, a display device, a memory device configured to store a database of recommended plunge velocities at which a rotating milling drum having particular operational characteristics should be lowered into a pavement surface to break up and remove pavement material for various depths of cut to be achieved by the milling drum, and a processor in communication with the input device, the display device, and the memory device. The processor may be configured to receive, via the input device, a signal indicative of a particular depth of cut desired by an operator of the cold planer, determine from the database at least one plunge velocity at which the rotating milling drum should be lowered into the pavement surface during a milling operation for achieving the particular depth of cut, display the at least one plunge velocity for the particular desired depth of cut on the display device, generate a command control signal indicative of the at least one determined plunge velocity, and communicate the command control signal to an actuator configured to regulate a rate of descent of the milling drum into the pavement surface.

A system for automatically controlling operation of a milling drum on a cold planer includes an input device, a display device, a memory device configured to store a database of recommended plunge velocities at which a rotating milling drum having particular operational characteristics should be lowered into a pavement surface to break up and remove pavement material for various depths of cut to be achieved by the milling drum, and a processor in communication with the input device, the display device, and the memory device. The processor may be configured to receive, via the input device, a signal indicative of a particular depth of cut desired by an operator of the cold planer, determine from the database at least one plunge velocity at which the rotating milling drum should be lowered into the pavement surface during a milling operation for achieving the particular depth of cut, display the at least one plunge velocity for the particular desired depth of cut on the display device, generate a command control signal indicative of the at least one determined plunge velocity, and communicate the command control signal to an actuator configured to regulate a rate of descent of the milling drum into the pavement surface.

A guidance system configured for providing control information to a guided object moving the guided object from an initial state to a target final state within a finite time interval. A controller receives information of the desired state and information representative of the guided object's current state including position and velocity. The controller includes a processor configured to calculate a control solution based on four variables relating to the present state, and the target state, wherein the processor is configured to apply coefficient weights to each of the four state variables and wherein a common coefficient weight is applied to the current state of position and the target state of position, and different coefficient weights are applied to each of the current state and target state of velocity.

A guidance system configured for providing control information to a guided object moving the guided object from an initial state to a target final state within a finite time interval. A controller receives information of the desired state and information representative of the guided object's current state including position and velocity. The controller includes a processor configured to calculate a control solution based on four variables relating to the present state, and the target state, wherein the processor is configured to apply coefficient weights to each of the four state variables and wherein a common coefficient weight is applied to the current state of position and the target state of position, and different coefficient weights are applied to each of the current state and target state of velocity.

According to aspects of the present disclosure, systems and methods for controlling the speed of a fluid-controlled drive mechanism are described herein. An example system may include a housing, a variable flow fluid pathway disposed within the housing, an electromagnet coupled to the housing, a fluid-controlled drive mechanism in fluid communication with the variable flow fluid pathway, and a load-generating assembly coupled to the fluid-controlled drive mechanism. An example method may include altering a variable flow fluid pathway disposed within a housing, wherein the variable flow fluid pathway is in fluid communication with a fluid-controlled drive mechanism, and generating an electrical current through an electromagnet, wherein the electromagnet is coupled to the housing.

According to aspects of the present disclosure, systems and methods for controlling the speed of a fluid-controlled drive mechanism are described herein. An example system may include a housing, a variable flow fluid pathway disposed within the housing, an electromagnet coupled to the housing, a fluid-controlled drive mechanism in fluid communication with the variable flow fluid pathway, and a load-generating assembly coupled to the fluid-controlled drive mechanism. An example method may include altering a variable flow fluid pathway disposed within a housing, wherein the variable flow fluid pathway is in fluid communication with a fluid-controlled drive mechanism, and generating an electrical current through an electromagnet, wherein the electromagnet is coupled to the housing.

A system includes a processing device configured to determine a tripping operation to be undertaken. The processing device is configured to also calculate a variable tripping speed for the tripping operation to vary a speed of the tripping operation. The processing device is further generate an output to control the operation of a portion of a continuous tripping system to implement the tripping operation at the variable tripping speed.

In a controller of the present invention that controls a drive mechanism driven by a plurality of motors, when a state where the output of the motors is zero shifts to a state where the output is non-zero such that a preload torque is provided by a preload torque superimposition unit, at least one of the motors forms a contact portion between the drive mechanism and the motor by speed control based on a speed detection value detected in a speed detection unit, and in a state where the contact portion is formed, the preload torque is provided by the preload torque superimposition unit.

In a controller of the present invention that controls a drive mechanism driven by a plurality of motors, when a state where the output of the motors is zero shifts to a state where the output is non-zero such that a preload torque is provided by a preload torque superimposition unit, at least one of the motors forms a contact portion between the drive mechanism and the motor by speed control based on a speed detection value detected in a speed detection unit, and in a state where the contact portion is formed, the preload torque is provided by the preload torque superimposition unit.

An electronic device is provided, including a processor, a graphics processing unit, a first temperature sensor, a second temperature sensor, an embedded controller and a memory. The first temperature sensor detects the temperature of the processor. The second temperature sensor detects the temperature of the graphics processing unit. The embedded controller increases the current fan speed according to a temperature change of the processor, a temperature change of the graphics processing unit, and/or a change of an operating state of the graphics processing unit. When the temperature of the processor rises to a first predetermined value, the temperature of the graphics processing unit is raised and the operating state of the graphics processing unit is changed, and the embedded controller increases the current fan speed according to a first speed table corresponding to the graphics processing unit stored in the memory.