Absolute acceleration sensor for use within moving vehicles

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. 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.

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. 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.

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
• wherein the control logic uses the inclination of movement vector to determine the absolute deceleration status.

A communication system for a vehicle, comprising:

• 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.