Abstract: A milling machine is provided comprising a frame including a plurality of height-adjustable legs; a rotor; a rotor chamber including a movable front wall, a movable rear wall, and a pair of movable side walls; and a controller. The controller is configured to enable a rotor chamber binding control during on a lowering of the rotor towards a ground surface; automatically raising at least one of the front wall or the rear wall during the lowering of the rotor; and disable the rotor chamber binding.

Abstract: A systems and method for plotting and viewing onboard machine data with graphical user interfaces on a mobile heavy duty machine is disclosed. The method also includes displaying a list of machine systems on an onboard display of the machine. The method further includes receiving at the display a selection of a machine system from the list of machine systems. The method additionally includes displaying one or more parameters at the display based on the selected machine system. The method additionally includes receiving at the display a selection of a parameter. The method also includes displaying a graphical representation, comprising an x-axis and y-axis, of real-time data of the parameter.

Abstract: A milling machine, system, and method for implementing a return to cut operation and/or an exit cut operation controls legs of the milling machine, a rotor of the milling machine, and front and rear doors of a mixing chamber of the milling machine according to settings for each of the return to cut operation and the exit cut operation. Such control can be based on signals from one or more sensors of the milling machine configured to sense various position-related characteristics of the milling machine, and can be performed responsive to a control input at an operator control interface of the milling machine.

Abstract: A milling machine may have a frame, ground engaging tracks that support the frame, and an actuator that adjusts a height of the frame relative to the track. The milling machine may have a control valve that selectively controls a flow of fluid into or out of the actuator based on the current supplied to the control valve. The milling machine may have a controller that determines the amount of current required to operate the actuator at a nominal actuator velocity and supplies that current to the control valve. The controller determines a measured actuator velocity based on a time required to extend or retract the actuator by a predetermined length, and adjusts the amount of current based on the measured and nominal actuator velocities. The controller also supplies the adjusted amount of current to the control valve to adjust the height of the frame relative to the track.

Abstract: A milling machine has a frame, ground engaging tracks that support the frame, a first actuator connecting the frame to a first track of the ground engaging tracks and a second actuator connecting the frame to a second track from the ground engaging tracks. The milling machine has an orientation sensor that determines an orientation of the frame. The milling machine has a controller that operates the first and second actuators to raise or lower the frame. The controller determines the frame orientation using the orientation sensor. The controller also determines a velocity error between actuator velocities of the first and second actuators based on the frame orientation and a target orientation of the frame. The controller determines a control parameter for the second actuator based on the velocity error and operates the second actuator using the determined control parameter.

Abstract: A machine is disclosed. The machine may include a control system that includes a controller configured to: determine a center of gravity of the machine based on a state of the machine; determine at least one of a slope limit or a pitch limit for the machine based on the center of gravity; receive a command to perform an operation that, if performed, would affect at least one of a slope or a pitch of the machine; determine whether the operation, if performed, would cause the machine to exceed the at least one of the slope limit or the pitch limit; and selectively perform the operation based on determining whether the operation, if performed, would cause the machine to exceed the at least one of the slope limit or the pitch limit.

Abstract: A milling machine is provided comprising a frame including a plurality of height-adjustable legs; a rotor; a rotor chamber including a movable front wall, a movable rear wall, and a pair of movable side walls; and a controller. The controller is configured to enable a rotor chamber binding control during on a lowering of the rotor towards a ground surface; automatically raising at least one of the front wall or the rear wall during the lowering of the rotor; and disable the rotor chamber binding.

Abstract: A milling machine, system, and method for adjusting a rotor cutting height adjusts the rotor cutting height to a target cutting height responsive to a control input received at an operator control interface. One or more legs of the milling machine and/or a height of the rotor can be adjusted to adjust the rotor cutting height to the target cutting height. The rotor cutting height can be adjusted based on data from one or more sensors. Each sensor may be a sonic sensor or an image capturing sensor.

Abstract: A milling machine, system, and method for implementing an exit cut operation raises a rotor from a state where the rotor contacts ground surface material responsive to a control input at an operator control interface of the milling machine. The rate at which the rotor is raised can increase as the rotor is raised. When the rotor is determined to have reached a top surface of the ground surface material the rotor can be raised at a maximum rate.

Abstract: A systems and method for plotting and viewing onboard machine data with graphical user interfaces on a mobile heavy duty machine is disclosed. The method also includes displaying a list of machine systems on an onboard display of the machine. The method further includes receiving at the display a selection of a machine system from the list of machine systems. The method additionally includes displaying one or more parameters at the display based on the selected machine system. The method additionally includes receiving at the display a selection of a parameter. The method also includes displaying a graphical representation, comprising an x-axis and y-axis, of real-time data of the parameter.

Abstract: A rotor assembly for a rotary mixer is disclosed.

Abstract: A calibration system is disclosed. The calibration system may include a sensor configured to measure a fluid level in a fluid tank of a machine, an actuator that, when actuated, affects a level of the machine, and a controller. The controller may be configured to: command actuation of the actuator at a current; receive, from the sensor and after commanding actuation of the actuator, information identifying the fluid level in the fluid tank; determine, based on the information identifying the fluid level in the fluid tank, whether there is a change to the fluid level in the fluid tank; and set an initiation current for the actuator at the current based on determining whether there is the change to the fluid level in the fluid tank.

Abstract: A milling machine, system, and method for implementing a return to cut operation and/or an exit cut operation controls legs of the milling machine, a rotor of the milling machine, and front and rear doors of a mixing chamber of the milling machine according to settings for each of the return to cut operation and the exit cut operation. Such control can be based on signals from one or more sensors of the milling machine configured to sense various position-related characteristics of the milling machine, and can be performed responsive to a control input at an operator control interface of the milling machine.

Abstract: A milling machine, system, and method for implementing an exit cut operation raises a rotor from a state where the rotor contacts ground surface material responsive to a control input at an operator control interface of the milling machine. The rate at which the rotor is raised can increase as the rotor is raised. When the rotor is determined to have reached a top surface of the ground surface material the rotor can be raised at a maximum rate.

Abstract: A milling machine, system, and method for adjusting a rotor cutting height adjusts the rotor cutting height to a target cutting height responsive to a control input received at an operator control interface. One or more legs of the milling machine and/or a height of the rotor can be adjusted to adjust the rotor cutting height to the target cutting height. The rotor cutting height can be adjusted based on data from one or more sensors. Each sensor may be a sonic sensor or an image capturing sensor.

Abstract: A milling machine may have a frame, ground engaging tracks that support the frame, and an actuator that adjusts a height of the frame relative to the track. The milling machine may have a control valve that selectively controls a flow of fluid into or out of the actuator based on the current supplied to the control valve. The milling machine may have a controller that determines the amount of current required to operate the actuator at a nominal actuator velocity and supplies that current to the control valve. The controller determines a measured actuator velocity based on a time required to extend or retract the actuator by a predetermined length, and adjusts the amount of current based on the measured and nominal actuator velocities. The controller also supplies the adjusted amount of current to the control valve to adjust the height of the frame relative to the track.

Abstract: A milling machine has a frame, ground engaging tracks that support the frame, a first actuator connecting the frame to a first track of the ground engaging tracks and a second actuator connecting the frame to a second track from the ground engaging tracks. The milling machine has an orientation sensor that determines an orientation of the frame. The milling machine has a controller that operates the first and second actuators to raise or lower the frame. The controller determines the frame orientation using the orientation sensor. The controller also determines a velocity error between actuator velocities of the first and second actuators based on the frame orientation and a target orientation of the frame. The controller determines a control parameter for the second actuator based on the velocity error and operates the second actuator using the determined control parameter.

Abstract: A machine for milling pavement such as a road planer or a rotary mixer includes a cutting rotor for penetrating and fracturing a work surface. To adjust the vertical elevation of the cutting rotor, the machine includes a rotor elevation mechanism. The machine may also include a rotor elevation control system that is programmed to lower the cutting rotor to initially contact the work surface. When the cutting rotor initially contacts the work surface, the touch point may be used as a reference to calibrate the rotor elevation mechanism prior to further lowering the cutting rotor into the work surface.

Abstract: A machine for milling pavement such as a road planer or a rotary mixer includes a cutting rotor for penetrating and fracturing a work surface. To adjust the vertical elevation of the cutting rotor, the machine includes a rotor elevation mechanism. The machine may also include a rotor elevation control system that is programmed to lower the cutting rotor to initially contact the work surface. When the cutting rotor initially contacts the work surface, the touch point may be used as a reference to calibrate the rotor elevation mechanism prior to further lowering the cutting rotor into the work surface.

Abstract: A machine is disclosed. The machine may include a control system that includes a controller configured to: determine a center of gravity of the machine based on a state of the machine; determine at least one of a slope limit or a pitch limit for the machine based on the center of gravity; receive a command to perform an operation that, if performed, would affect at least one of a slope or a pitch of the machine; determine whether the operation, if performed, would cause the machine to exceed the at least one of the slope limit or the pitch limit; and selectively perform the operation based on determining whether the operation, if performed, would cause the machine to exceed the at least one of the slope limit or the pitch limit.