Estimation of the load of a vehicle
First Claim
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1. A method of estimating the current load of a vehicle, comprising:
- defining at least two weight classes;
providing a filter bank including, for each of the at least two weight classes, a filter, each filter implementing a vehicle model for estimating the current mass of the vehicle;
supplying, to each filter, at least one vehicle data indicative of a current driving situation of the vehicle, and at least one current filter parameter specific for the respective weight class;
determining, by means of each filter, a load estimation value as filter specific estimation of the current load of the vehicle;
determining, by a processor, for each load estimation value, a current indication whether it can be assumed that the current load of the vehicle belongs to the respective weight class; and
selecting, by a processor, among all load estimation values, the load estimation value having the best current indication as estimation of the current load of the vehicle for the current driving situation and/or weighing the current indications for the weight classes to obtain an overall load estimation value for the filter bank, wherein the overall load estimation value is used as load estimation for the current load of the vehicle for the current driving situation.
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Abstract
A method, an apparatus and a computer program product for estimating the current load of a vehicle wherein a filter bank including a filter for different weight classes, each filter implementing a vehicle model for estimating the current mass of the vehicle. Based on vehicle data indicative of a current driving situation of the vehicle, and filter parameter specific for the respective weight class, each filter provides a load estimation value as filter specific estimation of the current load of the vehicle.
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Citations
26 Claims
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1. A method of estimating the current load of a vehicle, comprising:
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defining at least two weight classes; providing a filter bank including, for each of the at least two weight classes, a filter, each filter implementing a vehicle model for estimating the current mass of the vehicle; supplying, to each filter, at least one vehicle data indicative of a current driving situation of the vehicle, and at least one current filter parameter specific for the respective weight class; determining, by means of each filter, a load estimation value as filter specific estimation of the current load of the vehicle; determining, by a processor, for each load estimation value, a current indication whether it can be assumed that the current load of the vehicle belongs to the respective weight class; and selecting, by a processor, among all load estimation values, the load estimation value having the best current indication as estimation of the current load of the vehicle for the current driving situation and/or weighing the current indications for the weight classes to obtain an overall load estimation value for the filter bank, wherein the overall load estimation value is used as load estimation for the current load of the vehicle for the current driving situation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for estimation of the current load of a vehicle, comprising:
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a filter bank including at least two filters, each filter implementing a vehicle model for estimating the mass of the vehicle and being associated to one of at least two weight classes; an input for supplying, to each filter, at least one vehicle data indicative of a current driving situation of the vehicle, and at least one current filter parameter specific for the respective weight class;
whereineach filter is adapted to determine a load estimation value as filter specific estimation of the current load of the vehicle; a processing system to determine, for each load estimation value, a current indication whether it can be assumed that the current load of the vehicle belongs to the respective weight class, and select, among all load estimation values, the load estimation value for which the best current indication is determined as estimation of the current load of the vehicle for the current driving situation and/or being adapted to weigh the current indications for the weight classes to obtain an overall load estimation value for the filter bank, wherein the overall load estimation value is used as load estimation for the current load of the vehicle for the current driving situation. - View Dependent Claims (22, 23)
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24. A non-transitory computer program product comprising program code for carrying out a method, when executed on a processing system, of estimating the current load of a vehicle, comprising:
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defining at least two weight classes; providing a filter bank including, for each of the at least two weight classes, a filter, each filter implementing a vehicle model for estimating the current mass of the vehicle; supplying, to each filter, at least one vehicle data indicative of a current driving situation of the vehicle, and at least one current filter parameter specific for the respective weight class; determining, by means of each filter, a load estimation value as filter specific estimation of the current load of the vehicle; determining, for each load estimation value, a current indication whether it can be assumed that the current load of the vehicle belongs to the respective weight class; and selecting, among all load estimation values, the load estimation value having the best current indication as estimation of the current load of the vehicle for the current driving situation and/or weighing the current indications for the weight classes to obtain an overall load estimation value for the filter bank, wherein the overall load estimation value is used as load estimation for the current load of the vehicle for the current driving situation. - View Dependent Claims (25, 26)
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Specification