WHEEL LIFTED AND GROUNDED IDENTIFICATION FOR AN AUTOMOTIVE VEHICLE
First Claim
Patent Images
1. A method of controlling a vehicle having a plurality of wheels comprising:
- determining at least one parameter selected from a linear corner velocity, a rolling radius of a wheel, a rolling radius wheel departure angle, slip rate, a heave normal load, a non-heave normal load, and road torque; and
Generating a wheel lift signal in response to said at least one parameter.
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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
98 Claims
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1. A method of controlling a vehicle having a plurality of wheels comprising:
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determining at least one parameter selected from a linear corner velocity, a rolling radius of a wheel, a rolling radius wheel departure angle, slip rate, a heave normal load, a non-heave normal load, and road torque; and
Generating a wheel lift signal in response to said at least one parameter. - View Dependent Claims (2, 3, 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, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 58, 59, 78, 79, 80, 84, 85, 86, 87)
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4. A method of controlling a vehicle having a plurality of wheels comprising:
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determining a wheel departure angle;
determining an actual road torque;
determining a wheel longitudinal slip; and
determining a wheel lift status for said plurality of wheels in response to said wheel departure angle, said actual road torque, and said wheel longitudinal slip. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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52. A method for controlling an automotive vehicle having a plurality of wheels comprising:
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determining a first wheel lift condition;
determining a second wheel lift condition;
determining a third wheel lift condition; and
generating a wheel lift flag in response to said first wheel lift condition, said second wheel lift condition, and said third wheel lift condition. - View Dependent Claims (53, 54)
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55. 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; and
controlling a safety system in response to the wheel lift signal. - View Dependent Claims (56, 57, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77)
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72. 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.
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- 81. A method as recited in claim 81 wherein determining a slip ratio is determined as a function of wheel speed and said vehicle velocity.
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88. A method of controlling an automotive vehicle having a wheel comprising:
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determining an actual road torque applied to the wheel;
determining a calculated road torque; and
generating a wheel lift signal in response to the calculated road torque and the actual road torque. - View Dependent Claims (89, 90, 91, 92, 93, 94, 95)
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96. A method for controlling an automotive vehicle having a plurality of wheels comprising:
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measuring a yaw rate;
determining a lateral acceleration;
determining a roll rate;
determining longitudinal acceleration;
generating said wheel lift signal as a function of said yaw rate, said lateral acceleration, said roll rate and said longitudinal acceleration; and
controlling a safety system in response to said wheel lift signal. - View Dependent Claims (97, 98)
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Specification