Method and system for assessing the trip performance of a driver
First Claim
1. A method for automatically assessing performance of a driver of a current vehicle for a particular current trip, wherein updated current-trip driving data sets are repeatedly read from the vehicle, the current-trip data sets each comprises data from at least a predetermined set of basic driving data parameters, wherein the current-trip data sets are read from the vehicle at consecutive observation time points separated by at the most a predetermined observation time period, wherein the method comprises the steps ofa) collecting previous-trip driving data sets, observed at a plurality of different observation time points, for a plurality of different previous trips made by a plurality of different drivers and a plurality of different vehicles, the previous-trip data sets each comprises parameter values for at least a certain predetermined set of qualified driving data parameters in turn comprising the basic parameter set and in particular instantaneous vehicle energy consumption and instantaneous vehicle velocity;
- b) for a plurality of said previous-trip data sets, calculating a respective relative instantaneous vehicle energy consumption value, the relative energy consumption is relative to a total energy consumption for a respective trip during which the previous-trip data set in question was observed;
c) calculating a characteristic vehicle relative energy consumption function regarding the value of said relative instantaneous vehicle energy consumption for different instantaneous vehicle velocity parameter values; and
d) calculating a value of a trip performance parameter based upon a weighted average value of the respective relative instantaneous energy consumptions for previous-trip data sets that correspond to each of said current-trip data sets based upon a similarity or conformance measure regarding the respective values of said basic parameters, the weighting is performed using said characteristic vehicle relative energy consumption function.
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Abstract
Method for automatically assessing performance of a driver (110) of a vehicle (100) for a particular trip, wherein current driving data sets, comprising basic driving data are repeatedly read from the vehicle, which method comprises the steps a) collecting previous-trip driving data sets, comprising instantaneous vehicle energy consumption and instantaneous vehicle velocity, for different previous trips, different drivers and different vehicles; b) for a plurality of said previous-trip datasets, calculating a respective relative instantaneous vehicle energy consumption value; c) calculating a characteristic vehicle relative energy consumption function; and d) calculating a value of a trip performance parameter based upon a weighted average value of the respective relative instantaneous energy consumptions for previous-trip data sets that correspond to each of said current-trip data sets, which weighting is performed using said characteristic vehicle relative energy consumption function. The invention also relates to a system.
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Citations
14 Claims
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1. A method for automatically assessing performance of a driver of a current vehicle for a particular current trip, wherein updated current-trip driving data sets are repeatedly read from the vehicle, the current-trip data sets each comprises data from at least a predetermined set of basic driving data parameters, wherein the current-trip data sets are read from the vehicle at consecutive observation time points separated by at the most a predetermined observation time period, wherein the method comprises the steps of
a) collecting previous-trip driving data sets, observed at a plurality of different observation time points, for a plurality of different previous trips made by a plurality of different drivers and a plurality of different vehicles, the previous-trip data sets each comprises parameter values for at least a certain predetermined set of qualified driving data parameters in turn comprising the basic parameter set and in particular instantaneous vehicle energy consumption and instantaneous vehicle velocity; -
b) for a plurality of said previous-trip data sets, calculating a respective relative instantaneous vehicle energy consumption value, the relative energy consumption is relative to a total energy consumption for a respective trip during which the previous-trip data set in question was observed; c) calculating a characteristic vehicle relative energy consumption function regarding the value of said relative instantaneous vehicle energy consumption for different instantaneous vehicle velocity parameter values; and d) calculating a value of a trip performance parameter based upon a weighted average value of the respective relative instantaneous energy consumptions for previous-trip data sets that correspond to each of said current-trip data sets based upon a similarity or conformance measure regarding the respective values of said basic parameters, the weighting is performed using said characteristic vehicle relative energy consumption function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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- 13. A system for automatically assessing performance of a driver of a current vehicle for a particular current trip, the system is arranged to repeatedly read updated current-trip driving data sets from the vehicle, the current-trip data sets each comprises data from at least a predetermined set of basic driving data parameters, wherein the system is arranged to read the current-trip data sets from the vehicle at consecutive observation time points separated by at the most a predetermined observation time period, wherein the system comprises a server, arranged to collect previous-trip driving data sets, observed at a plurality of different observation time points, for a plurality of different previous trips made by a plurality of different drivers and a plurality of different vehicles, the previous-trip data sets each comprises parameter values for at least a certain predetermined set of qualified driving data parameters in turn comprising the basic parameter set and in particular instantaneous vehicle energy consumption and instantaneous vehicle velocity, wherein the server is arranged to, for a plurality of said previous-trip data sets, calculate a respective relative instantaneous vehicle energy consumption value, the relative energy consumption is relative to a total energy consumption for a respective trip during which the previous-trip data set in question was observed, wherein the server is arranged to calculate a characteristic vehicle relative energy consumption function regarding the value of said relative instantaneous vehicle energy consumption for different instantaneous vehicle velocity parameter values, and wherein the server is arranged to calculate a value of a trip performance parameter based upon a weighted average value of the respective relative instantaneous energy consumptions for previous-trip data sets that correspond to each of said current-trip data sets based upon a similarity or conformance measure regarding the respective values of said basic parameters, the weighting is performed using said characteristic vehicle relative energy consumption function.
Specification