Driveability rating method and system
First Claim
1. A method of assigning a driveability rating to a predetermined maneuver in a vehicle comprising the:
- identifying a plurality of maneuver facets;
recording vehicle performance data for the manoeuvre;
deriving a local rating for each maneuver facet from the vehicle performance data; and
combining the local ratings to provide an overall driveability rating for the maneuver, in which the local rating is derived using a predetermined transfer function.
2 Assignments
0 Petitions
Accused Products
Abstract
The system carries out continuous in-vehicle data measurement and storage for subsequent processing. A given driving manoeuvre is sub-divided into facets and the measured vehicle data is processed to provide a local rating for each of the facets using empirically derived transfer functions. The local ratings are weighted and combined to provide an overall rating which is converted to a rating out of ten based on a further transfer function based on correlations between derived and subjectively observed ratings. As a result, driveability rating and engine calibration/development can be accelerated and targeted.
16 Citations
12 Claims
-
1. A method of assigning a driveability rating to a predetermined maneuver in a vehicle comprising the:
-
identifying a plurality of maneuver facets;
recording vehicle performance data for the manoeuvre;
deriving a local rating for each maneuver facet from the vehicle performance data; and
combining the local ratings to provide an overall driveability rating for the maneuver, in which the local rating is derived using a predetermined transfer function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A driveability rating system for a vehicle comprising, for a predetermined maneuver having a plurality of maneuver facets, vehicle performance data for the maneuver recorded in a data store or processor, a local rating is derived by a data processor for each facet from the vehicle performance data;
- wherein the local ratings are combined in the processor to provide an overall driveability rating for the maneuver in which the local ratings are derived using respective predetermined transfer functions.
-
12. A method of assigning a driveability rating to a predetermined maneuver in a vehicle comprising:
-
deriving a rating function for a predetermined rating value;
identifying an error or proportional value between the derived function and a measured function; and
deriving a rating based on the error or proportional value.
-
Specification