HANDS ON STEERING WHEEL DETECT
First Claim
1. A method for determining whether hands of an operator of a vehicle are positioned on a hand wheel of the vehicle, comprising:
- generating a first frequency content below a first frequency from a hand wheel torque signal;
generating a second frequency content above a second frequency from the hand wheel torque signal;
generating a hands on wheel (HOW) estimate signal based on the first frequency content and the second frequency content; and
causing a system in a vehicle to operate based on the HOW estimate signal.
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Accused Products
Abstract
A method for determining whether hands of an operator of a vehicle are positioned on a hand wheel of the vehicle is provided. The method generates a first frequency content below a first frequency from a hand wheel torque signal. The method generates a second frequency content above a second frequency from the hand wheel torque signal. The method generates a hands on wheel (HOW) estimate signal based on the first frequency content and the second frequency content. The method causes a system in a vehicle to operate based on the HOW estimate signal.
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Citations
20 Claims
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1. A method for determining whether hands of an operator of a vehicle are positioned on a hand wheel of the vehicle, comprising:
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generating a first frequency content below a first frequency from a hand wheel torque signal; generating a second frequency content above a second frequency from the hand wheel torque signal; generating a hands on wheel (HOW) estimate signal based on the first frequency content and the second frequency content; and causing a system in a vehicle to operate based on the HOW estimate signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control system of a vehicle, comprising:
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a hand wheel torque sensor configured to generate a hand wheel torque signal based on a movement of a hand wheel of the vehicle; and a control module for determining whether hands of an operator of the vehicle are positioned on a hand wheel of the vehicle, the control module configured to; generate a first frequency content below a first frequency from a hand wheel torque signal; generate a second frequency content above a second frequency from the hand wheel torque signal; generate a hands on wheel (HOW) estimate signal based on the first frequency content and the second frequency content; and cause another system in a vehicle to operate based on the HOW estimate signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification