Hand-held electrically driven domestic appliance with mode selection

1. A hand-held electrically driven hand blender or hand mixer, comprising:

an electric motor for driving the hand blender or hand mixer;

a control unit for controlling the electric motor;

a first operation element outputting a first control signal to the control unit to select a motor control mode; and

a second operation element for outputting a second control signal to the control unit,

wherein the control unit selects a motor actuation mode from specified motor actuation modes on the basis of the first control signal,

wherein the control unit determines a motor actuation signal to be outputted to the electric motor on the basis of the selected motor actuation mode and the second control signal, and

wherein the second control signal outputted by the second operation element utilizes an operation path of the second operation element,

wherein one of the specified motor activation modes comprise

a first pulse mode with a first pulse form of an actuation value for actuating the electric motor, wherein the control unit determines the motor actuation value to be outputted to the electric motor on the basis of the second control signal over the complete operation path of the second operation element and the first pulse form, wherein the actuation value is set as a food breaking up or food crushing speed while maintaining the pulse mode.

2. The hand-held electrically driven hand blender or hand mixer of claim 1 , wherein one of the specified motor actuation modes has a first maximum actuation value for actuating the electric motor, wherein the control unit determines the motor actuation signal to be outputted to the electric motor on the basis of the second control signal and the first maximum actuation value.

3. The hand-held electrically driven hand blender or hand mixer of claim 2 wherein one of the specified motor activation modes has a second maximum actuation value for actuating the electric motor, wherein the control unit determines the motor actuation signal to be outputted to the electric motor on the basis of the second control signal and the second maximum actuation value.

4. The hand-held electrically driven hand blender or hand mixer according to claim 3 , wherein the first maximum actuation value is selected from the group consisting of a maximum voltage to be applied to the electric motor, a maximum torque of the electric motor and a maximum rotation speed of the electric motor.

5. The hand-held electrically driven hand blender or hand mixer according to claim 3 , wherein the second maximum actuation value is selected from the group consisting of a maximum voltage to be applied to the electric motor, a maximum torque of the electric motor and a maximum rotation speed of the electric motor.

6. The hand-held electrically driven hand blender or hand mixer according to claim 3 , wherein in one of the motor actuation modes, a correlation exists between the second control signal and an actuation value between a minimum value and the first or second maximum value, wherein the correlation is selected from the group consisting of:

a linear correlation;

an exponential correlation;

a step-like correlation; and

any curved correlation.

7. The hand-held electrically driven hand blender or hand mixer according to claim 1 , wherein the control unit selects the first pulse mode, and performs at least one of the following functions:

to control a pulse width dependently upon an operation path of the second operation element;

to switch between an off state and actuation with the first pulse form according to an actuation of the second operation element;

to control an amplitude of the first pulse form dependently upon the operation path of the second operation element;

to control a frequency of the first pulse form dependently upon the operation path of the second operation element;

to control a pulse ratio, and on/off, of the first pulse form dependently upon the actuation path of the second operation element; or

to control a combination thereof according to the operation path of the second operation element.

8. The hand-held electrically driven hand blender or hand mixer according to claim 1 , wherein the first pulse form of the first pulse mode is selected from the group consisting of:

a sawtooth pulse;

a sinusoidal pulse;

a rectangular pulse;

a trapezoidal pulse; and

any pulse form.

9. The hand-held electrically driven hand blender or hand mixer according to claim 1 , further comprising:

a measuring device for measuring a rotation speed of the electric motor, wherein

the control unit further determines the motor actuation signal to be outputted to the electric motor, on the basis of the rotation speed measured for the electric motor.

10. A method for controlling a hand-held electrically driven hand blender or hand mixer comprising the steps:

receiving a first control signal to select a motor control mode from a first operation element;

receiving a second control signal from a second operation element;

selecting a motor actuation mode from specified motor actuation modes on the basis of the first control signal; and

determining a motor actuation signal to be outputted to an electric motor of the hand blender or hand mixer on the basis of the selected motor actuation mode and the second control signal, wherein the received second control signal from the second operation element utilizes an operation path of the second operation element,

wherein one of the specified motor activation mode comprise a first pulse mode with a first pulse form of an actuation value for actuating the electric motor, the motor actuation value to be outputted to the electric motor being determined on the basis of the second control signal over the complete operation path of the second operation element and the first pulse form in the step of determining the motor actuation signal to be outputted to the electric motor of the hand blender or hand mixer, wherein the actuation value is set as a food breaking up or food crushing speed while maintaining the pulse mode.

11. The method according to claim 10 , wherein one of the specified motor actuation modes has a first maximum actuation value for actuating the electric motor, wherein the motor actuation signal to be outputted to the electric motor is determined on the basis of the second control signal and the first maximum actuation value in the step of determining a motor actuation signal to be outputted to the electric motor of the hand blender or hand mixer.

12. The method of claim 11 , wherein one of the specified motor activation modes has a second maximum actuation value, for actuating the electric motor, wherein the motor actuation signal to be outputted to the electric motor being determined on the basis of the second control signal and the second maximum actuation value in the step of determining a motor actuation signal to be outputted to the electric motor of the hand blender or hand mixer.

13. The method according to claim 11 , wherein the first actuation value is selected from the group consisting of a maximum voltage to be applied, a maximum rotation speed and a maximum torque of the electric motor.

14. The method according to claim 11 , wherein the second actuation value is selected from the group consisting of a maximum voltage to be applied, a maximum rotation speed and a maximum torque of the electric motor.

15. The method according to claim 10 , wherein a control unit for controlling the electric motor of the hand blender or hand mixer selects the first pulse mode, and performs at least one of the following functions:

controlling a pulse width dependently upon an operation path of the second operation element;

switching between an off state and actuation with the first pulse form according to the actuation of the second operation element;

controlling an amplitude of the first pulse form dependently upon an actuation path of the second operation element;

controlling a frequency of the first pulse form dependently upon the operation path of the second operation element;

controlling a pulse ratio, and on/off, of the first pulse form dependently upon the operation path of the second operation element; and

controlling a combination thereof according to the operation path of the second operation element.

16. The method according to claim 10 , wherein the first pulse form of the first pulse mode is selected from the group consisting of:

a sawtooth pulse;

a sinusoidal pulse;

a rectangular pulse;

a trapezoidal pulse; and

any pulse form.

17. The method according to claim 10 , wherein in one of the motor actuation modes, a correlation exists between the second control signal and a course between a minimum value and the first or second maximum value, wherein the correlation is selected from the group consisting of:

a linear correlation;

an exponential correlation;

a step-like correlation; and

any curved correlation.

18. The method according to claim 10 , further comprising the step:

measuring, by a measuring device, a rotation speed of the electric motor, wherein

in the step of determining a motor actuation signal to be outputted to the electric motor of the hand blender or hand mixer, the motor actuation signal to be outputted to the electric motor is further determined on the basis of the measured rotation speed of the electric motor.