Calibration method and calibration system for a vehicle sensor

A calibration method for a vehicle sensor, comprising the following steps:

• situating a calibration device with at least one reference object in a field of view of the vehicle sensor, which is situated on a vehicle;
• ascertaining a first relative position of the calibration device relative to the vehicle by a measurement outside the vehicle;
• acquiring the at least one reference object by the vehicle sensor, and determining a second relative position of the at least one reference object relative to the vehicle from acquisition data of the vehicle sensor;
• and
• calculating a deviation between the first relative position and the second relative position;
• wherein the calibration method is terminated when the calculated deviation is within a predetermined tolerance and a complete calibration of the vehicle sensor being carried out only when the calculated deviation is outside the predetermined tolerance.

A calibration system for a vehicle sensor, comprising:

• a calibration device with at least one reference object for situation in a field of view of the vehicle sensor, which is situated on a vehicle;
• and
• at least one control unit capable of being coupled to the calibration device and to the vehicle sensor;
• wherein the calibration device or an external observation device is configured to ascertain a first relative position of the calibration device relative to the vehicle by a measurement outside the vehicle, the vehicle sensor is configured to acquire the at least one reference object by the vehicle sensor, the at least one control unit is configured to ascertain a second relative position of the at least one reference object relative to the vehicle from acquisition data of the vehicle sensor and to calculate a deviation between the first relative position and the second relative position, and
• the calibration system is configured to initiate a release signal to release the vehicle when the calculated deviation is already within a predetermined tolerance and to carry out a complete calibration of the vehicle sensor only when the calculated deviation is outside the predetermined tolerance.