Roll-over detector for vehicles
AssigneeMeritor Heavy Vehicle Systems, LLC
InventorChristos T. Kyrtsos
Life of this patent
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Abstract
A roll-over detector for vehicles includes a first accelerometer mounted on a first axle of the vehicle, a second accelerometer mounted on a second axle of the vehicle, and a third accelerometer mounted on a third axle of the vehicle. A controller compares data received from the first and second accelerometers and actuates a safety device to prevent a roll-over condition if the differences between the data exceed a predetermined value. The controller utilizes data from the third accelerometer to account for the effect of road conditions on the variations between the data from the first and second accelerometers.
Claims14
A method for detecting a roll-over condition of a vehicle by analyzing forces acting on the vehicle, said method comprising the steps of:
- providing a first accelerometer on a first axle of the vehicle;
- providing a second accelerometer on a second axle of the vehicle;
- receiving data from the first accelerometer regarding the forces acting on the vehicle;
- receiving data from the second accelerometer regarding the forces acting on the vehicle;
- comparing the data received from the first accelerometer and the data received from the second accelerometer;
- and
- actuating at least one safety device if the differences between the data from the first and second accelerometers meet at least one predetermined criterion.
A method for detecting a roll-over condition of a vehicle by analyzing forces acting on the vehicle, said method comprising the steps of:
- providing a first accelerometer on the vehicle at a first location along the length of the vehicle;
- providing a second accelerometer on the vehicle at a second location along the length of the vehicle;
- receiving data from the first accelerometer regarding the forces acting on the vehicle;
- receiving data from the second accelerometer regarding the forces acting on the vehicle;
- comparing the standard deviation of the data received from the first accelerometer with the standard deviation of the data received from the second accelerometer;
- and
- actuating at least one safety device if the standard deviation of the data received from the first accelerometer differs from the standard deviation of the data received by the second accelerometer by an amount exceeding a predetermined value.
An apparatus for detecting a roll-over condition of a vehicle by analyzing forces acting on the vehicle, said apparatus comprising:
- a first accelerometer adapted to be mounted on the vehicle on a first axle;
- a second accelerometer adapted to be mounted on the vehicle on a second axle;
- and
- a controller configured to receive data from said first and said second accelerometers regarding the forces acting on the vehicle, compare the data received from said first and said second accelerometers, and actuate at least one safety device if the differences between the data from the first accelerometer and the second accelerometer meet at least one predetermined criterion.
An apparatus for detecting a roll-over condition of a vehicle by analyzing forces acting on the vehicle, said apparatus comprising:
- a first accelerometer adapted to be mounted on the vehicle at a first location along the length of the vehicle;
- a second accelerometer adapted to be mounted on the vehicle at a second location along the length of the vehicle;
- and
- a controller configured to receive data from said first and said second accelerometers regarding the forces acting on the vehicle, compare the standard deviation of the data received from said first accelerometer with the standard deviation of the data received from said second accelerometer and actuate at least one safety device if the standard deviation of the data received from said first accelerometer differs from the standard deviation of the data received by said second accelerometer by an amount exceeding a predetermined value.
A method for detecting a roll-over condition of a vehicle by analyzing the operating characteristics of the vehicle, said method comprising the steps of:
- providing a first accelerometer on a first axle of the vehicle;
- providing a second accelerometer on a second axle of the vehicle;
- receiving data from the first accelerometer regarding the forces acting on the vehicle;
- receiving data from the second accelerometer regarding the forces acting on the vehicle;
- comparing the data received from the first accelerometer and the data received from the second accelerometer to detect roll-over;
- measuring the speed of a first wheel on the vehicle;
- measuring the speed of a second wheel on the vehicle;
- comparing the speed of the first wheel with the speed of the second wheel to verify roll-over;
- and
- actuating at least one safety device if the difference between the speed of the first and second wheels meets at least one predetermined criterion.
Dependencies are inferred from the claim text.