Characterizing Engine Load
First Claim
Patent Images
1. A method comprising:
- detecting signals from an on board diagnostics (OBD) port of a vehicle that is connected to an engine control unit within the vehicle, while the vehicle is moving along a surface;
obtaining, from the detected signals, operating parameters of the vehicle including a power parameter and a speed parameter; and
estimating effective frontal area of the vehicle based on the power parameter and the speed parameter.
2 Assignments
0 Petitions
Accused Products
Abstract
Aspects of the disclosure are directed to characterizing effective vehicle frontal area. As may be implemented in accordance with one or more embodiments, one or more operating parameters of the vehicle are obtained. Such parameters may be obtained during one or more qualifying periods of time, such as those periods in which an operating parameter or parameters such as speed and/or acceleration are within a range of values. A value that provides an estimate of the vehicle frontal area is then generated based on the one or more operating parameters.
-
Citations
20 Claims
-
1. A method comprising:
-
detecting signals from an on board diagnostics (OBD) port of a vehicle that is connected to an engine control unit within the vehicle, while the vehicle is moving along a surface; obtaining, from the detected signals, operating parameters of the vehicle including a power parameter and a speed parameter; and estimating effective frontal area of the vehicle based on the power parameter and the speed parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An apparatus comprising:
-
a first circuit module configured and arranged to couple to an on board diagnostics (OBD) port of a vehicle that is connected to an engine control unit within the vehicle, and to detect signals from the OBD port while the vehicle is moving along a surface; and a second circuit module configured and arranged to estimate frontal area of the vehicle by; obtaining, from the detected signals, operating parameters of the vehicle including a power parameter and a speed parameter; and estimating effective frontal area of the vehicle based on the power parameter and the speed parameter. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification