Method for determining correction values, method for determining a position of a motor vehicle
The disclosure relates to a method for determining correction values for a number of sensors of a traveling motor vehicle. The method being based on backward calculation. The disclosure further relates to a method for determining a position of a motor vehicle, using the correction values. The disclosure also relates to an associated electronic control device and to an associated non-volatile computer-readable storage medium.
1. A method of determining a position of a motor vehicle via backward calculation, the method comprising:
determining a first position of the motor vehicle at a first time by satellite navigation;
recording between the first time and a second time sensor data of a sensor for determining the position of the vehicle, wherein the second time is later in time than the first time;
determining a second position of the motor vehicle at the second time by satellite navigation;
calculating a backwardly calculated value of the first position based on the second position and the sensor data recorded between the first time and the second time;
determining a deviation between the backwardly calculated value of the first position and the first position;
calculating a backward correction value of the sensor based on the deviation; and
determining the position of the motor vehicle based on corrected sensor data of the sensor corrected based on the backward correction value.
2. The method of claim 1 , wherein the sensor comprises at least one of: a steering angle sensor, a steering wheel angle sensor, a turning rate sensor, a speed sensor, an acceleration sensor, a wheel speed sensor, a vehicle dynamics sensor, and an environment sensor.
3. The method of claim 1 , further comprising:
calculating a forecast of the second position based on the first position and the sensor data recorded between the first time and the second time;
determining a deviation between the forecast of the second position and the second position;
calculating a forward correction value of the sensor based on the deviation between the forecast of the second position and the second position; and
determining the position of the motor vehicle based on corrected sensor data of the sensor corrected based on the forward correction value and the backward correction value.
4. The method of claim 3 , wherein determining the position of the motor vehicle based on the corrected sensor data of the sensor corrected based on the forward correction value and the backward correction value comprises:
weighting the forward correction value and the backward correction value; and
determining the position of the motor vehicle base on the weighted forward correction value and the weighted backward correction value.