Occupant restraint system and control method with variable sensor rate and/or sample rate
First Claim
Patent Images
1. An occupant restraint system for a vehicle, said system comprising:
- an occupant restraint device;
sensor means for sensing an occupant condition at a sensor rate and for providing a signal indicative of the sensed occupant condition;
means for sampling said signal at a sample rate;
determination means for making a determination regarding control of said restraint device using the signal samples; and
variation means for varying at least one of said sensor rate and said sample rate in response to the signal samples.
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Abstract
An occupant restraint system (10), and an associated control method, for a vehicle (16). The system (10) includes an actuatable occupant restraint device (18). An ultrasound sensor (34) senses an occupant condition and provides a signal (38) indicative thereof. An ultrasound signal sampler function (46) of a controller (26) samples the signal (38) at a sample rate. A restraint control determination function (50) of the controller (26) makes determinations regarding control of the restraint device (18) using the signal samples. A rate determination function (52) determines the sensor and sample rates using the signal samples.
26 Citations
14 Claims
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1. An occupant restraint system for a vehicle, said system comprising:
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an occupant restraint device; sensor means for sensing an occupant condition at a sensor rate and for providing a signal indicative of the sensed occupant condition; means for sampling said signal at a sample rate; determination means for making a determination regarding control of said restraint device using the signal samples; and variation means for varying at least one of said sensor rate and said sample rate in response to the signal samples. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for controlling an occupant restraint device in an occupant restraint system for a vehicle, said method comprising:
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sensing an occupant condition at a sensor rate; providing a signal indicative of the sensed occupant condition; sampling the signal at a sample rate; making a determination regarding control of the restraint device using the signal samples; and varying at least one of the sensor rate and the sample rate in response to the signal samples. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification