Controlling a battery-operated handheld power tool
AssigneeRobert Bosch GmbH
InventorHeiko ROEHM
Life of this patent
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Abstract
A method for controlling an operation of an electrical handheld power tool having a drive motor and an electrical energy store includes the step of determining that a parameter of the handheld power tool is beyond a threshold value and the step of controlling the drive motor in such a way that a torque output thereby periodically oscillates between a first and a second value, a frequency of the oscillation being below an audible range.
Claims10
A method for controlling an operation of an electrical handheld power tool including a drive motor and an electrical energy store, comprising:
- determining that a parameter in the handheld power tool is beyond a threshold value;
- and
- controlling the drive motor in such a way that a torque output by the torque motor undergoes a periodic oscillation between a first value and a second value, wherein a frequency of the oscillation is below an audible range.
A computer program product having a program code for carrying out a method for controlling an operation of an electrical handheld power tool including a drive motor and an electrical energy store, the method comprising:
- determining that a parameter in the handheld power tool is beyond a threshold value;
- and
- controlling the drive motor in such a way that a torque output by the torque motor undergoes a periodic oscillation between a first value and a second value, wherein a frequency of the oscillation is below an audible range, and wherein the computer program product one of is executed on a processing unit and is stored on a computer-readable data carrier.
An electrical handheld power tool, comprising:
- an electrical energy store;
- a drive motor that is operated from the electrical energy store;
- and
- a control unit for determining that a parameter in the handheld power tool is beyond a threshold value, and for controlling the drive motor in such a way that a torque output by the drive motor undergoes a periodic oscillation between a first value and a second value, a frequency of the oscillation being below an audible range.
Dependencies are inferred from the claim text.