Method for generating an activating algorithm for rollover detection for safety-related devices in automotive vehicles
First Claim
1. A method for generating an activating algorithm for processing a sensor signal of an angular rate sensor provided within a safety system of a motor vehicle, by means of which an activation decision for activating at least one safety device of said safety system is made in response to said sensor signal, wherein said sensor signal represents a measure of a rotational velocity (ω
- ) of a rolling motion occurring when a rollover is imminent, said method comprising the following steps;
a) generating a theoretical characteristic rollover curve satisfying;
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Abstract
An activating algorithm is generated for rollover detection for safety-related devices in automotive vehicles. First, a theoretical characteristic rollover curve, adapted to the respective vehicle, is assumed. This theoretical rollover curve is approximated with the aid of low pass filter functions to specific cutoff frequencies and trigger thresholds respectively. These cutoff frequencies and trigger thresholds are adapted to the rollover scenarios to be detected. The sensor signals generated by an angular rate sensor for sensing the rotational velocity of the rolling motion, are processed and evaluated by these low pass filter functions for activating a safety device, if necessary. The low pass filter functions provide a rollover curve which is an approximation of the theoretical rollover curve.
35 Citations
38 Claims
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1. A method for generating an activating algorithm for processing a sensor signal of an angular rate sensor provided within a safety system of a motor vehicle, by means of which an activation decision for activating at least one safety device of said safety system is made in response to said sensor signal, wherein said sensor signal represents a measure of a rotational velocity (ω
- ) of a rolling motion occurring when a rollover is imminent, said method comprising the following steps;
a) generating a theoretical characteristic rollover curve satisfying;
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
- ) of a rolling motion occurring when a rollover is imminent, said method comprising the following steps;
Specification