Absolute acceleration sensor for use within moving vehicles
First Claim
1. A communication system for a vehicle, comprising:
- a. an absolute deceleration detector including an accelerometer, a gyroscope configured to sense an inclination of a movement vector relative to the gravitational acceleration, and a control logic and configured to determine an absolute deceleration status of the vehicle;
b. a braking system engagement detector to detect a braking status of the vehicle;
c. an alerting device capable of signaling other drivers of a deceleration condition of the vehicle; and
d. a control device coupled to the absolute deceleration detector, the braking system engagement detector, and the alerting device, wherein the deceleration detector sends signals to the control device and the control device operates the alerting device in a manner dependent on the absolute deceleration status of the vehicle.
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Accused Products
Abstract
A method of and system for detecting absolute acceleration along various axes relative to a desired movement vector while moving relative to a gravity source includes steps of determining a vertical acceleration, perpendicular to the desired movement vector and substantially anti-parallel to a gravitational acceleration due to the gravity source; determining a longitudinal acceleration, parallel to the desired movement vector and to output at vertical acceleration signal and a longitudinal acceleration signal; determining an inclination of the desired movement vector relative to the gravitational acceleration; and processing the vertical acceleration signal, the longitudinal acceleration signal, and the inclination signal to produce an absolute vertical acceleration signal and an absolute longitudinal acceleration signal.
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Citations
29 Claims
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1. A communication system for a vehicle, comprising:
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a. an absolute deceleration detector including an accelerometer, a gyroscope configured to sense an inclination of a movement vector relative to the gravitational acceleration, and a control logic and configured to determine an absolute deceleration status of the vehicle; b. a braking system engagement detector to detect a braking status of the vehicle; c. an alerting device capable of signaling other drivers of a deceleration condition of the vehicle; and d. a control device coupled to the absolute deceleration detector, the braking system engagement detector, and the alerting device, wherein the deceleration detector sends signals to the control device and the control device operates the alerting device in a manner dependent on the absolute deceleration status of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A communication system for a vehicle, comprising:
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a. an absolute deceleration detector including an accelerometer, a gyroscope configured to sense an inclination of a movement vector relative to the gravitational acceleration, and a control logic and configured to determine an absolute deceleration status of the vehicle; b. an alerting device capable of signaling other drivers of a deceleration condition of the vehicle; and c. a control device coupled to the absolute deceleration detector and the alerting device, wherein the deceleration detector sends signals to the control device and the control device operates the alerting device in a manner dependent on the absolute deceleration status of the vehicle. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A communication system for a vehicle, comprising:
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a. an absolute deceleration detector including an accelerometer, a gyroscope configured to sense an inclination of a movement vector relative to the gravitational acceleration, and a control logic and configured to determine an absolute deceleration status of the vehicle; b. an alerting device capable of signaling other drivers of a deceleration condition of the vehicle, wherein the alerting device comprises lamps on the vehicle that are capable of flashing; c. a control device coupled to the absolute deceleration detector and the alerting device, wherein the deceleration detector sends signals to the control device and the control device operates the alerting device in a manner dependent on the absolute deceleration status of the vehicle; and d. an input device coupled to the control device. - View Dependent Claims (24, 25, 26, 27)
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28. A communication system for a vehicle, comprising:
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a. an absolute deceleration detector including an accelerometer, a gyroscope configured to sense an inclination of a movement vector relative to the gravitational acceleration, and a control logic and configured to determine an absolute deceleration status of the vehicle; b. a braking system engagement detector to detect a braking status of the vehicle; c. an alerting device capable of signaling other drivers of a deceleration condition of the vehicle; and d. a control device coupled to the absolute deceleration detector, the braking system engagement detector, and the alerting device, wherein the deceleration detector sends signals to the control device and the control device operates the alerting device in a manner dependent on the absolute deceleration status of the vehicle wherein the control logic uses the inclination of movement vector to determine the absolute deceleration status.
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29. A communication system for a vehicle, comprising:
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a. an absolute deceleration detector including; i. an accelerometer for determining an acceleration of the vehicle; ii. a gyroscope for determining a deviation from a plane perpendicular to earth'"'"'s gravity, wherein an absolute deceleration of the vehicle is determined based on a signal from the accelerometer and a signal from the gyroscope; b. a braking system engagement detector to detect a braking status of the vehicle; c. an alerting device capable of signaling other drivers of a deceleration condition of the vehicle; and d. a control device coupled to the absolute deceleration detector, the braking system engagement detector, and the alerting device, wherein the deceleration detector sends signals to the control device and the control device operates the alerting device in a manner dependent on the absolute deceleration status of the vehicle.
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Specification