Method for operating a driver assistance unit of a motor vehicle using a navigation target specification device, control unit, navigation target specification device, and motor vehicle

A control unit configured to perform operations comprising:

• receiving a target specification signal from a detection device of the motor vehicle, wherein the target specification signal describes a projection on a trafficable driving surface by the motor vehicle, and wherein the projection is detected by the detection device;
• establishing a portion of the trafficable driving surface to which the light of the projection is applied as a driving target region;
• based on the received target specification signal, establishing a relative position of the motor vehicle relative to the established driving target region;
• receiving an orientation signal from an orientation detection unit of the navigation target specification device, wherein the orientation signal describes a spatial target specification orientation of the navigation target specification device in the driving target region, wherein the navigation target specification device is configured as one of a motor vehicle key or a mobile device;
• based on the received orientation signal, establishing a navigation target according to an absolute position of the driving target region;
• based on the established relative position of the motor vehicle and the established navigation target, establishing a movement path from a current position of the motor vehicle to the navigation target;
• generating a navigation signal describing a control of the motor vehicle along the established movement path to the navigation target;
• and
• transmitting the generated navigation signal to a driver assistance unit of the motor vehicle.

A navigation target specification device comprising:

• an orientation detection unit, wherein the orientation detection unit is configured to detect a spatial orientation of the navigation target specification device;
• an output device, wherein the output device is configured to output a light beam;
• and
• a control unit configured to:
• receive a target specification signal from a detection device of the motor vehicle, wherein the target specification signal describes a projection on a trafficable driving surface by the motor vehicle, and wherein the projection is detected by the detection device;
• establish a portion of the trafficable driving surface to which the light of the projection is applied as a driving target region;
• based on the received target specification signal, establish a relative position of the motor vehicle relative to the established driving target region;
• receive an orientation signal from an orientation detection unit of the navigation target specification device, wherein the orientation signal describes a spatial target specification orientation of the navigation target specification device in the driving target region, wherein the navigation target specification device is configured as one of a motor vehicle key or a mobile device;
• based on the received orientation signal, establish a navigation target according to an absolute position of the driving target region;
• based on the established relative position of the motor vehicle and the established navigation target, establish a movement path from a current position of the motor vehicle to the navigation target;
• generate a navigation signal describing a control of the motor vehicle along the established movement path to the navigation target;
• and
• transmit the generated navigation signal to a driver assistance unit of the motor vehicle.

A motor vehicle, comprising:

• a navigation target specification device comprising:
• an orientation detection unit, wherein the orientation detection unit is configured to detect a spatial orientation of the navigation target specification device;
• an output device, wherein the output device is configured to output a light beam;
• and
• a control unit configured to:
• receive a target specification signal from a detection device of the motor vehicle, wherein the target specification signal describes a projection on a trafficable driving surface by the motor vehicle, and wherein the projection is detected by the detection device;
• establish a portion of the trafficable driving surface to which the light of the projection is applied as a driving target region;
• based on the received target specification signal, establish a relative position of the motor vehicle relative to the established driving target region;
• receive an orientation signal from an orientation detection unit of the navigation target specification device, wherein the orientation signal describes a spatial target specification orientation of the navigation target specification device in the driving target region, wherein the navigation target specification device is configured as one of a motor vehicle key or a mobile device;
• based on the received orientation signal, establish a navigation target according to an absolute position of the driving target region;
• based on the established relative position of the motor vehicle and the established navigation target, establish a movement path from a current position of the motor vehicle to the navigation target;
• generate a navigation signal describing a control of the motor vehicle along the established movement path to the navigation target;
• and
• transmit the generated navigation signal to a driver assistance unit of the motor vehicle.