Wheel lifted and grounded identification for an automotive vehicle
First Claim
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1. A method for controlling an automotive vehicle comprising:
- generating a plurality of wheel speed signals including a first wheel speed signal;
generating a vehicle velocity signal;
determining a slip ratio in response to the wheel speed signal and the vehicle velocity signal;
determining a slip power in response to the slip ratio, when the slip power is positive;
generating a wheel lift signal based on the slip power; and
controlling a safety system in response to the wheel lift signal.
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Abstract
A control system (18) for an automotive vehicle (10) has a first roll condition detector (64A), a second roll condition detector (64B), a third roll condition detector (64C), and a controller (26) that uses the roll condition generated by the roll condition detectors (64A-C) to determine a wheel lift condition. Other roll condition detectors may also be used in the wheel lift determination. The wheel lift conditions may be active or passive or both.
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Citations
43 Claims
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1. A method for controlling an automotive vehicle comprising:
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generating a plurality of wheel speed signals including a first wheel speed signal; generating a vehicle velocity signal; determining a slip ratio in response to the wheel speed signal and the vehicle velocity signal; determining a slip power in response to the slip ratio, when the slip power is positive; generating a wheel lift signal based on the slip power; and controlling a safety system in response to the wheel lift signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of controlling automotive vehicle comprising:
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determining a slip rate; generating a wheel lift signal in response to slip rate; and controlling a safety system in response to the wheel lift signal. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method of controlling a safety system of an automotive vehicle having a plurality of wheels, the method comprising the steps of:
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detecting a plurality of wheel speed signals; generating a vehicle velocity signal; determining a slip ratio from the wheel speed signal and the vehicle velocity signal; determining a slip power from the slip ratio; generating a wheel lift signal when the slip power is positive; generating a wheel grounded signal when the slip power is negative; and controlling the safety system in response to the wheel lift or wheel grounded signal. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification