Method for determining vehicle location including road surface data
First Claim
1. A method of determining a location of a vehicle using dead reckoning navigation based upon wheel speed sensor measurement, wherein the vehicle includes a controller, a vehicle communication network, a wheel speed sensor, and a telematics unit configured to communicate via a wireless carrier system, and wherein the determining the location using dead reckoning navigation is based upon a combination of locally generated vehicle sensor measurements and rough road parameter information received by the vehicle from a server, associated with a remote central rough road data repository, via the wireless carrier system, the method comprising:
- receiving, by the controller, a wheel speed measurement provided by the wheel speed sensor via the vehicle communication network;
receiving, by the controller, a rough road parameter, wherein the rough road parameter is a geospatial location-specific value from the central rough road data repository provided to the vehicle via the wireless carrier system;
determining, by the controller based upon the rough road parameter, a rough road weighting factor indicative of a level of reliability of the wheel speed measurement; and
determining, by the controller using dead reckoning navigation, the location of the vehicle based on the wheel speed measurement and the rough road weighting factor.
14 Assignments
0 Petitions
Accused Products
Abstract
A method of determining location of a vehicle includes receiving a wheel speed measurement and receiving a rough road parameter. A rough road weighting factor is determined based on the rough road parameter, and vehicle location is determined based on the determined rough road weighting factor and the wheel speed.
-
Citations
20 Claims
-
1. A method of determining a location of a vehicle using dead reckoning navigation based upon wheel speed sensor measurement, wherein the vehicle includes a controller, a vehicle communication network, a wheel speed sensor, and a telematics unit configured to communicate via a wireless carrier system, and wherein the determining the location using dead reckoning navigation is based upon a combination of locally generated vehicle sensor measurements and rough road parameter information received by the vehicle from a server, associated with a remote central rough road data repository, via the wireless carrier system, the method comprising:
-
receiving, by the controller, a wheel speed measurement provided by the wheel speed sensor via the vehicle communication network; receiving, by the controller, a rough road parameter, wherein the rough road parameter is a geospatial location-specific value from the central rough road data repository provided to the vehicle via the wireless carrier system; determining, by the controller based upon the rough road parameter, a rough road weighting factor indicative of a level of reliability of the wheel speed measurement; and determining, by the controller using dead reckoning navigation, the location of the vehicle based on the wheel speed measurement and the rough road weighting factor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A non-transitory computer readable medium having stored thereon computer executable instructions for determining a location of a vehicle using dead reckoning navigation based upon wheel speed sensor measurement, wherein the vehicle includes a controller, a vehicle communication network, a wheel speed sensor, and a telematics unit configured to communicate via a wireless carrier system, and wherein the determining the location using dead reckoning navigation is based upon a combination of locally generated vehicle sensor measurements and rough road parameter information received by the vehicle from a server, associated with a remote central rough road data repository, via the wireless carrier system, the instructions comprising instructions for:
-
receiving, by the controller, a wheel speed measurement provided by the wheel speed sensor via the vehicle communication network; receiving, by the controller, a rough road parameter, wherein the rough road parameter is a geospatial location-specific value from the central rough road data repository provided to the vehicle via the wireless carrier system; determining, by the controller based on the rough road parameter, a rough road weighting factor indicative of a level of reliability of the wheel speed measurement; and determining, by the controller using dead reckoning navigation, the location of the vehicle based on the rough road weighting factor and the wheel speed measurement. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A system for determining a location of a vehicle using dead reckoning navigation based upon wheel speed sensor measurement, wherein the vehicle includes a controller, a vehicle communication network, and a telematics unit configured to communicate via a wireless carrier system, and wherein the determining the location using dead reckoning navigation is based upon a combination of locally generated vehicle sensor measurements and rough road parameter information received by the vehicle from a server, associated with a remote central rough road data repository, via the wireless carrier system, the system comprising:
-
a wheel speed sensor configured to sense the speed of an associated wheel and provide a corresponding wheel speed measurement; and a controller, comprising a processor communicatively connected with the wheel speed sensor via the vehicle communication network and configured to; receive, via the vehicle communication network, a wheel speed measurement; receiving a rough road parameter, wherein the rough road parameter is a geospatial location-specific value from the central rough road data repository provided to the vehicle via the wireless carrier system; determining, by the controller based on the rough road parameter a rough road weighting factor indicative of a level of reliability of the wheel speed measurement; and determining, by the controller using dead reckoning navigation, the location of the vehicle based on the rough road weighting factor and the wheel speed measurement. - View Dependent Claims (18, 19, 20)
-
Specification