Method for satellite-based determination of a vehicle position

Patent metadata

Field	Value
Publication number	US-11668842-B2
Application number	US-201916375084-A
Country	US
Kind code	B2
Filing date	Apr 4, 2019
Priority date	Apr 11, 2018
Publication date	Jun 6, 2023
Grant date	Jun 6, 2023

Abstract

The disclosure relates to a method for satellite-based determination of a vehicle position, comprising the following steps: a) receiving GNSS satellite data; b) determining a vehicle's position with the GNSS satellite data received in step a); c) providing input variables that can have an effect on the accuracy of the vehicle position determined in step b); d) determining a positional accuracy of the vehicle position determined in step b) using an algorithm that assigns a positional accuracy to a vehicle position; and e) adapting the algorithm.

First claim

What is claimed is:

1. A method for establishing a protection limit of a satellite-based determination of a vehicle position, the method comprising:
receiving at least one global navigation satellite system (GNSS) satellite signal with a GNSS receiver;
determining a vehicle position of a vehicle using data from the received at least one GNSS satellite signal;
determining a protection limit of the determined vehicle position using an algorithm that assigns a protection limit to the determined vehicle position using the determined vehicle position, wherein determining the protection limit is carried out by a vehicle component;
providing the determined vehicle position and the assigned determined protection limit to a control unit of the vehicle; and
adapting the algorithm based upon the determined protection limit.

2. The method according to claim 1 , wherein adapting the algorithm is carried out remotely to the vehicle, the method further comprising:
transmitting the adapted algorithm to the vehicle.

3. The method according to claim 1 , wherein the algorithm determines the protection limit as based on the determined vehicle position and at least one input variable that affects accuracy of the determined vehicle position.

4. The method according to claim 1 , wherein the adapting the algorithm further comprises:
detecting a GNSS-based vehicle position of the vehicle;
at least one of receiving input variables that affect accuracy of the detected GNSS-based vehicle position, and detecting a reference position for the detected GNSS-based vehicle position; and
adapting an algorithm that assigns a protection limit to the detected GNSS-based vehicle position based on at least one of a comparison between the detected GNSS-based vehicle position and the detected reference position and a comparison between the detected GNSS-based vehicle position and at least one of the received input variables.

5. The method according to claim 1 , wherein the method is carried out by at least one computer program.

6. The method according to claim 1 , wherein the computer program is stored on at least one machine-readable storage medium.

7. A method for improving the accuracy estimation of a protection limit of a satellite-based determination of a vehicle position, the method comprising:
detecting a global navigation satellite system (GNSS)-based vehicle position of the vehicle using a GNSS receiver;
at least one of receiving input variables that affect accuracy of the detected GNSS-based vehicle position, and detecting a reference position for the detected GNSS-based vehicle position;
adapting an algorithm that assigns a protection limit to the detected GNSS-based vehicle position based on at least one of a comparison between the detected GNSS-based vehicle position and the detected reference position and a comparison between the detected GNSS-based vehicle position and at least one of the received input variables, wherein the adaptation of the algorithm is carried out automatically; and
providing the assigned protection limit and at least one of the detected GNSS-based vehicle position and the detected reference position to a control unit of the vehicle.

8. The method according to claim 7 , wherein the method is carried out at least partially remotely to the vehicle.

9. The method according to claim 7 , wherein the method is carried out entirely by a vehicle component.

10. The method according to claim 7 , wherein the algorithm is a neural network having at least one of weights and threshold values.

11. The method according to claim 10 , wherein, in adapting the algorithm, the at least one of the weights and the threshold values of the algorithm are adjusted.

12. The method according to claim 7 , wherein the adapting of the algorithm is carried out one of while the vehicle is stopped and after the vehicle is stopped.

13. A motion and position sensor configured to carry out a method for satellite-based determination of a vehicle position, the method comprising:
receiving global navigation satellite system (GNSS) satellite data;
determining a vehicle position of a vehicle with the received GNSS satellite data;
determining a protection limit of the determined vehicle position using an algorithm that assigns a protection limit to the vehicle position based upon the determined vehicle position;
providing the determined vehicle position and the assigned determined protection limit to a control unit of the vehicle; and
adapting the algorithm based upon the determined protection limit wherein the adaptation of the algorithm is carried out automatically.

Assignees

• Bosch Gmbh Robert

Inventors

• Ewert Marlon Ramon

Classifications

• G01S19/38

  Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system · CPC title

• G01S19/49

  whereby the further system is an inertial position system, e.g. loosely-coupled · CPC title

• G01S19/26 Primary

  involving a sensor measurement for aiding acquisition or tracking · CPC title

• G01S19/396 Primary

  Determining accuracy or reliability of position or pseudorange measurements · CPC title

• G01S19/45

  by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement · CPC title