Inclinometer methods and systems for generating and calibrating an in-vehicle inclination angle
First Claim
1. An inclinometer method for generating an in-vehicle inclination angle (θ
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r) of the vehicle or a vehicle member, the method comprising;
measuring an acceleration (v) of the vehicle or vehicle member;
measuring a pitch angular velocity (q) of a computer;
measuring a longitudinal accelerometer signal (ax,S) of the computer;
generating an in-vehicle pitch angle (θ
);
calibrating an inclinometer-vehicle relative misalignment pitch offset angle (θ
p) of the vehicle or vehicle member using a stationary-mode or a dynamic-mode based on a road grade of a road segment; and
generating an in-vehicle inclination angle (θ
r) of the vehicle or vehicle member,wherein the vehicle is present, andwherein the vehicle is selected from the group consisting of;
a car, a truck, and a construction equipment vehicle.
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Accused Products
Abstract
Provided herein are inclinometer methods and systems for generating an in-vehicle inclination angle (θr). An inclinometer method can include measuring an acceleration ({dot over (ν)}) of a vehicle or a vehicle member, measuring a pitch angular velocity (q) of a computer, measuring a longitudinal accelerometer signal (ax,S) of the computer, generating an in-vehicle pitch angle (θ) of the vehicle or the vehicle member, calibrating an inclinometer-vehicle relative misalignment pitch offset angle (θp) of the vehicle or the vehicle member comprising a stationary-mode or a dynamic-mode, and generating an in-vehicle inclination angle (θr) of the vehicle or the vehicle member.
9 Citations
17 Claims
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1. An inclinometer method for generating an in-vehicle inclination angle (θ
-
r) of the vehicle or a vehicle member, the method comprising;
measuring an acceleration (v) of the vehicle or vehicle member; measuring a pitch angular velocity (q) of a computer; measuring a longitudinal accelerometer signal (ax,S) of the computer; generating an in-vehicle pitch angle (θ
);calibrating an inclinometer-vehicle relative misalignment pitch offset angle (θ
p) of the vehicle or vehicle member using a stationary-mode or a dynamic-mode based on a road grade of a road segment; andgenerating an in-vehicle inclination angle (θ
r) of the vehicle or vehicle member,wherein the vehicle is present, and wherein the vehicle is selected from the group consisting of;
a car, a truck, and a construction equipment vehicle. - View Dependent Claims (2, 3, 4, 5)
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r) of the vehicle or a vehicle member, the method comprising;
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6. A system for generating an in-vehicle inclination angle (θ
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r) of the vehicle or a vehicle member, the system comprising;
one or more computers, wherein the one or more computers comprise one or more processors and one or more sensors; and a memory storing instruction which, when executed by the one or more processors, causes the one or more processors to; receive an acceleration ({dot over (ν
)}) of the vehicle or vehicle member;receive a pitch angular velocity (q) of the one or more computers; receive a longitudinal accelerometer signal (ax,S) of the one or more computers; apply the operations to generate an in-vehicle pitch angle (θ
) of the vehicle or vehicle member;calibrate an inclinometer-vehicle relative misalignment pitch offset angle (θ
p) of the vehicle or vehicle member using a stationary-mode or a dynamic-mode based on a road grade of a road segment;apply the in-vehicle pitch angle (θ
) to the inclinometer-vehicle relative misalignment pitch offset angle (θ
p) to generate an in-vehicle inclination angle (θ
r) of the vehicle or vehicle member; andpresent the in-vehicle inclination angle (θ
r) to a display unit in operable communication with the one or more processors,wherein the vehicle is present, and wherein the vehicle is selected from the group consisting of;
a car, a truck, and a construction equipment vehicle. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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r) of the vehicle or a vehicle member, the system comprising;
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13. A non-transitory computer readable medium comprising instructions which, when implemented by one or more computers, causes the one or more computers to:
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receive an acceleration ({dot over (ν
)}) of a vehicle or a vehicle member;receive a pitch angular velocity (q) of the one or more computers; receive a longitudinal accelerometer signal (ax,S) of the one or more computers; generate in-vehicle pitch angle (θ
) of the vehicle or vehicle member;calibrate an inclinometer-vehicle relative misalignment pitch offset angle (θ
p) of the vehicle or vehicle member using a stationary-mode or a dynamic-mode based on a road grade of a road segment;apply the in-vehicle pitch angle (θ
) to the inclinometer-vehicle relative misalignment pitch offset angle (θ
p) to generate an in-vehicle inclination angle (θ
r) of the vehicle or vehicle member; andpresent the in-vehicle inclination angle (θ
r) to a display unit of the one or more computers,wherein the vehicle is present, and wherein the vehicle is selected from the group consisting of;
a car, a truck, and a construction equipment vehicle. - View Dependent Claims (14, 15, 16, 17)
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Specification