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.
30 Citations
20 Claims
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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:
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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)
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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:
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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)
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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:
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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)
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Specification