Method and control unit for operating a noise suppression unit of a vehicle

An apparatus for a vehicle, comprising:

• a control unit that is configured to:
• determine noise data relating to a level of interfering noise in or on the vehicle at a current vehicle position while the vehicle is traveling, wherein the noise data is collected in particular based on sensor data of at least one microphone and/or at least one vibration sensor of the vehicle,
• provide and/or use the noise data for creating and/or updating a digital map, wherein the digital map comprises position-dependent data relating to road surface-induced interfering noise in or on a vehicle and/or relating to the activation of a noise suppression unit of a vehicle, and
• determine environmental data relating to an upcoming road section, wherein the environmental data comprises sensor data of an environment sensor of the vehicle, and
• determine the noise information based on the environmental data.

A method for operating a noise suppression unit of a vehicle, which is designed to reduce interfering noise in or on the vehicle by generating at least one acoustic compensation signal;

• wherein the method comprises;
• determining noise information relating to expected interfering noise, relating to the expected level of interfering noise, at an upcoming vehicle position while the vehicle is traveling;
• ensuring that the noise suppression unit is activated at the upcoming vehicle position or is in an energy-saving mode, depending on the noise information obtained;
• determining environmental data relating to an upcoming road section, wherein the environmental data comprises sensor data of an environment sensor of the vehicle, and
• determining the noise information based on the environmental data.

A method for providing a digital map for a road network in which a vehicle is moving, the method comprising:

• determining noise data relating to a level of interfering noise in or on the vehicle at a current vehicle position while the vehicle is traveling;
• wherein the noise data is determined in particular on the basis of sensor data from at least one microphone and/or at least one vibration sensor of the vehicle;
• providing and/or using the noise data for creating and/or updating a digital map, wherein the digital map comprises position-dependent data relating to road surface-induced interfering noise in or on a vehicle and/or relating to the activation of a noise suppression unit of a vehicle;
• determining environmental data relating to an upcoming road section, wherein the environmental data comprises sensor data of an environment sensor of the vehicle, and
• determining the noise information based on the environmental data.

An apparatus for updating a digital map for a road network, comprising:

• a unit, wherein the digital map comprises position-dependent data relating to road surface-induced interfering noise in or on a vehicle and/or relating to the activation of a noise suppression unit of a vehicle, wherein the unit is configured to:
• for a plurality of journeys by one or more vehicles on the road network, determine position-dependent noise data in relation to the level of interfering noise in or on the vehicle in question;
• update the digital map based on the position-dependent noise data for the plurality of journeys;
• determine environmental data relating to an upcoming road section, wherein the environmental data comprises sensor data of an environment sensor of the vehicle, and
• determine the noise information based on the environmental data.