Automotive data recorder
First Claim
1. A multi-state automotive vehicle data storage and analysis method, comprising the steps of:
- in a first state, (a) periodically sampling input ;
signal values indicating vehicle operating parameter values, (b) storing the sampled values in a temporary storage device, (c) determining a current vehicle operating condition, (d) comparing the current vehicle operating condition to a threshold operating condition, and (e) suspending operation in the first state by activating a second state when the current vehicle operating condition exceeds the threshold operating condition;
in the second state, (f) detecting occurrence of a predetermined confirmation condition, (g) suspending operation in the second state by activating a third state upon detecting occurrence of the predetermined confirmation condition; and
in the third state, transferring the stored values from the temporary storage device to a permanent storage device.
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Accused Products
Abstract
A multiple state automotive data storage and analysis procedure in which vehicle operating parameters are continuously logged in a first state while monitoring the vehicle operating condition for occurrence of any of a predetermined set of trigger conditions. Upon occurrence of any of the predetermined set of trigger conditions, logging operations are suspended and confirmation of occurrence of any of a predetermined set of storage conditions occurs in a second state. If such occurrence is confirmed, a third state is entered in which the logged parameter values are transferred to more permanent memory devices for off-line analysis thereof. If such occurrence is not confirmed, operations of the first state are resumed.
145 Citations
14 Claims
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1. A multi-state automotive vehicle data storage and analysis method, comprising the steps of:
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in a first state, (a) periodically sampling input ;
signal values indicating vehicle operating parameter values, (b) storing the sampled values in a temporary storage device, (c) determining a current vehicle operating condition, (d) comparing the current vehicle operating condition to a threshold operating condition, and (e) suspending operation in the first state by activating a second state when the current vehicle operating condition exceeds the threshold operating condition;in the second state, (f) detecting occurrence of a predetermined confirmation condition, (g) suspending operation in the second state by activating a third state upon detecting occurrence of the predetermined confirmation condition; and in the third state, transferring the stored values from the temporary storage device to a permanent storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification