Method for operating a brake of a motor vehicle, vehicle control device and vehicle

1. A method for operating a brake of a motor vehicle with at least one electronic brake signal generator and with at least one brake control device for actuating the brake based on a brake signal of the brake signal generator, the method comprising:

transmitting the brake signal to the brake control device; and

transmitting an actuation of the brake signal generator as a brake signal to the brake control device in addition to a brake pressure value,

wherein a total deflection or a current deflection of the brake signal generator from a rest position thereof is signaled by the brake signal.

2. The method as claimed in claim 1 , wherein a braking demand is signaled by the brake signal in encoded form as a duty cycle.

3. The method as claimed in claim 1 , wherein a braking demand is signaled by the brake signal in encoded form as a frequency modulation.

4. The method as claimed in claim 1 , wherein simultaneous signaling both of the actuation of the brake signal generator and the brake pressure value is carried out by the brake signal.

5. The method as claimed in claim 1 , wherein a braking force that is to be set is determined using a position of the brake signal generator.

6. The method as claimed in claim 1 , wherein the brake signal is modulated onto a carrier frequency.

7. The method as claimed in claim 6 , wherein the carrier frequency is varied in the event of and/or during the actuation of the brake signal generator.

8. The method as claimed in claim 7 , wherein the carrier frequency of the brake signal is varied as a function of a magnitude or a speed of the actuation of the brake signal generator.

9. The method as claimed in claim 7 , wherein the carrier frequency of the brake signal is varied linearly or logarithmically as a function of a magnitude of the actuation of the brake signal generator.

10. The method as claimed in claim 6 , wherein the carrier frequency is varied in event of actuation of the brake pedal by about 5% to 50%.

11. The method as claimed in claim 6 , wherein the carrier frequency is varied in event of the actuation of the brake signal generator.

12. The method as claimed in claim 1 , wherein the actuation of the brake signal generator is detected and signaled by a sensor for determining a magnitude of the actuation.

13. The method as claimed in claim 1 , wherein the actuation of the brake signal generator is detected and signaled by a sensor that is separate from a brake pressure transmitter.

14. The method as claimed in claim 1 , wherein the at least one electronic brake signal generator is a brake pedal, and wherein a pressure of a pedal operation is signaled by a duty cycle of the brake signal.

15. A method for operating a brake of a motor vehicle with at least one electronic brake signal generator and with at least one brake control device for actuating the brake based on a brake signal of the brake signal generator, the method comprising:

transmitting the brake signal to the brake control device; and

transmitting an actuation of the brake signal generator as a brake signal to the brake control device in addition to a brake pressure value,

wherein the brake signal is modulated onto a carrier frequency, and

wherein the carrier frequency of the brake signal is increased in event of activation of the brake signal generator and reduced in event of deactivation of the brake signal generator.

16. A vehicle control device, comprising:

an electronic brake signal generator configured to transmit an actuation of the electronic brake signal generator as a brake signal, in addition to a brake pressure value, to a brake control device; and

the brake control device, the brake control device being configured to actuate a brake of the vehicle based on the brake signal transmitted by the brake signal generator,

wherein a total deflection or a current deflection of the electronic brake signal generator from a rest position thereof is signaled by the brake signal.

17. The vehicle control device as claimed in claim 16 , wherein at least one brake pedal and/or brake lever is provided as the at least one brake signal generator.

18. A vehicle, comprising:

the vehicle control device as claimed in claim 16 ; and

the brake.