Battery pack powered trowel including blade pitch and speed control
A power trowel that includes a handle, a housing, a blade assembly including a trowel blade, a motor coupled to the blade assembly, a plurality of sensors configured to generate output signals related to an operational state of the power trowel, and a controller connected to the motor and the plurality of sensors. The controller is configured to receive the output signals from the plurality of sensors, determine, based on the output signals, a speed setting for the blade assembly and a pitch angle for the trowel blade, and control the motor to drive the blade assembly at the speed setting with the trowel blade at the pitch angle.
1 . A power trowel comprising:
a handle;
a housing;
a blade assembly including a trowel blade;
a motor coupled to the blade assembly;
a plurality of sensors configured to generate output signals related to an operational state of the power trowel;
a controller connected to the motor and the plurality of sensors, the controller configured to:
receive the output signals from the plurality of sensors,
determine, based on the output signals, a speed setting for the blade assembly and a pitch angle for the trowel blade, and
control the motor to drive the blade assembly at the speed setting with the trowel blade at the pitch angle.
2 . The power trowel of claim 1 , wherein the plurality of sensors include a load sensor configured to provide a load signal indicative of a load condition of the motor.
3 . The power trowel of claim 2 , wherein the controller is further configured to:
monitor the load condition of the motor; and
adjust at least one of the speed setting and the pitch angle based on the load condition of the motor.
4 . The power trowel of claim 3 , wherein the load condition is at least one selected from a group consisting of: a current draw of the motor, a power draw of the motor, a rotations-per-minute (“RPM”) of the motor, and an RPM of the blade assembly.
5 . The power trowel of claim 1 , wherein the plurality of sensors include a motion sensor configured to provide a motion signal indicative of a motion of the power trowel.
6 . The power trowel of claim 5 , wherein the controller is further configured to:
monitor the motion of the power trowel; and
adjust at least one of the speed setting and the pitch angle based on the motion of the power trowel.
7 . The power trowel of claim 1 , further comprising:
a machine learning controller configured to:
determine, based on the output signals, the speed setting for the blade assembly and the pitch angle for the trowel blade.
8 . The power trowel of claim 1 , wherein:
the plurality of sensors include at least one of an electromagnetic wave/radar sensor, an ultrasonic sensor, and concrete penetrometer; and
the controller is further configured to:
determine a parameter of a surface based on the output signals from the plurality of sensors.
9 . A method of controlling a power trowel, the method comprising:
receiving, from a plurality of sensors, output signals related to an operational state of the power trowel;
determining, using an electronic controller, a speed setting for a blade assembly and a pitch angle for a trowel blade based on the output signals related to the operational state of the power trowel; and
controlling a motor to drive the blade assembly at the speed setting with the trowel blade at the pitch angle.
10 . The method of claim 9 , wherein the plurality of sensors include a load sensor providing a load signal indicative of a load condition of the motor.
11 . The method of claim 10 , further comprising:
monitoring the load condition of the motor; and
adjusting at least one of the speed setting and the pitch angle based on the load condition of the motor.
12 . The method of claim 11 , wherein the load condition is at least one selected from a group consisting of: a current draw of the motor, a power draw of the motor, a rotations- per-minute (“RPM”) of the motor, and an RPM of the blade assembly.
13 . The method of claim 9 , wherein the plurality of sensors include a motion sensor providing a motion signal indicative of a motion of the power trowel.
14 . The method of claim 13 , further comprising:
monitoring the motion of the power trowel; and
adjusting at least one of the speed setting and the pitch angle based on the motion of the power trowel.
15 . The method of claim 9 , further comprising:
determining, using a machine learning controller and based on the output signals, the speed setting for the blade assembly and the pitch angle for the trowel blade.
16 . The method of claim 9 , wherein the plurality of sensors include at least one of an electromagnetic wave/radar sensor, an ultrasonic sensor, and concrete penetrometer; and
the method further comprises:
determining a parameter of a surface based on the output signals from the plurality of sensors.