Method of estimating a propulsion-related operating parameter
First Claim
1. A method performed in general purpose computer of estimating a propulsion-related operating parameter of a vehicle for a road segment, the method comprising:
- estimating at least one operating parameter of the vehicle for the road segment based on information corresponding to the road segment;
estimating the propulsion-related operating parameter for the road segment using the at least one estimated operating parameter and at least one vehicle specific parameter, where the at least one vehicle specific parameter is determined by;
acquiring driving data to determine a plurality of vehicle operating parameters while the vehicle is in operation;
using at least two of the determined vehicle operating parameters in a predetermined relationship that includes the at least one vehicle specific parameter; and
determining the at least one vehicle specific parameter from the driving data for the at least two vehicle operating parameters and the relationship,identifying different driving phases in the driving data acquired for the plurality of vehicle operating parameters where at least one vehicle specific parameter is determined for driving phase, where each identified driving phase is associated with a set of vehicle specific parameters determined from the respective driving data, the vehicle specific parameters determined for the identified driving phases being used to estimate the propulsion related operating parameter.
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Accused Products
Abstract
A method is provided for estimating a propulsion-related operating parameter of a vehicle for a road segment, and for determining routes based on the estimate. The method may be employed, for example, in a vehicle navigation system. In one example method, at least one operating parameter of the vehicle is estimated for the road segment based on information corresponding to the road segment. The propulsion-related operating parameter is estimated for the road segment using the at least one estimated operating parameter and at least one vehicle specific parameter. The at least one vehicle specific parameter is determined by acquiring driving data to determine a plurality of vehicle operating parameters while the vehicle is in operation. At least two of the determined vehicle operating parameters are used in a predetermined relationship that includes the at least one vehicle specific parameter. The at least one vehicle specific parameter is then determined from the driving data for the at least two vehicle operating parameters and the relationship.
30 Citations
18 Claims
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1. A method performed in general purpose computer of estimating a propulsion-related operating parameter of a vehicle for a road segment, the method comprising:
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estimating at least one operating parameter of the vehicle for the road segment based on information corresponding to the road segment; estimating the propulsion-related operating parameter for the road segment using the at least one estimated operating parameter and at least one vehicle specific parameter, where the at least one vehicle specific parameter is determined by; acquiring driving data to determine a plurality of vehicle operating parameters while the vehicle is in operation; using at least two of the determined vehicle operating parameters in a predetermined relationship that includes the at least one vehicle specific parameter; and determining the at least one vehicle specific parameter from the driving data for the at least two vehicle operating parameters and the relationship, identifying different driving phases in the driving data acquired for the plurality of vehicle operating parameters where at least one vehicle specific parameter is determined for driving phase, where each identified driving phase is associated with a set of vehicle specific parameters determined from the respective driving data, the vehicle specific parameters determined for the identified driving phases being used to estimate the propulsion related operating parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A navigation system for a vehicle comprising:
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an interface unit providing an interface to a vehicle sensor system; a processing unit configured to estimate a propulsion-related operating parameter of the vehicle for a road segment by estimating at least one operating parameter of the vehicle for the road segment based on information provided for the road segment and estimating the propulsion-related operating parameter for the road segment on the basis of the at least one estimated operating parameter and using at least one vehicle specific parameter; the processing unit being further configured to determine the at least one vehicle specific parameter by; acquiring driving data to determine a plurality of vehicle operating parameters while the vehicle is in operation; using at least two of the determined vehicle operating parameters in a predetermined relationship that includes the at least one vehicle specific parameter; and determining the at least one vehicle specific parameter from the driving data for the at least two vehicle operating parameters and the relationship. - View Dependent Claims (17)
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18. A non-transitory computer readable medium with an executable program stored in the medium, where the program performs the following steps when executed:
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estimating at least one operating parameter of the vehicle for the road segment based on information corresponding to the road segment; estimating a propulsion-related operating parameter for the road segment using the at least one estimated operating parameter and at least one vehicle specific parameter, where the at least one vehicle specific parameter is determined by; acquiring driving data to determine a plurality of vehicle operating parameters while the vehicle is in operation; using at least two of the determined vehicle operating parameters in a predetermined relationship that includes the at least one vehicle specific parameter; and determining the at least one vehicle specific parameter from the driving data for the at least two vehicle operating parameters and the relationship.
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Specification