Tire abnormal state monitoring system for an automotive vehicle
First Claim
Patent Images
1. A method of controlling a vehicle comprising:
- generating a wheel speed signal;
determining at least one of a vehicle longitudinal velocity, a vehicle lateral velocity, and a vehicle vertical velocity;
determining at least one of a yaw signal, a roll signal, and a pitch signal;
determining a tire abnormal state in response to the wheel speed, at least one of the vehicle longitudinal velocity, vehicle lateral velocity, and vehicle vertical velocity, and at least one of the yaw signal, the roll signal, and the pitch signal; and
controlling the vehicle in response to the tire abnormal state.
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Abstract
A control system for controlling an automotive vehicle (10) is set forth. Various tire parameters such as a rolling radius, a vertical spring rate, and a tire rotational spring rate may be used to determine a tire abnormal state. The vehicle (10) is controlled in response to the tire abnormal state. To control the vehicle various dynamic control systems such as anti-lock brakes, traction control, various sensors existing in the vehicle such as a yaw signal, roll signal and pitch signal may be used to determine a tire parameter.
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Citations
38 Claims
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1. A method of controlling a vehicle comprising:
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generating a wheel speed signal;
determining at least one of a vehicle longitudinal velocity, a vehicle lateral velocity, and a vehicle vertical velocity;
determining at least one of a yaw signal, a roll signal, and a pitch signal;
determining a tire abnormal state in response to the wheel speed, at least one of the vehicle longitudinal velocity, vehicle lateral velocity, and vehicle vertical velocity, and at least one of the yaw signal, the roll signal, and the pitch signal; and
controlling the vehicle in response to the tire abnormal state. - 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)
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38. A method of controlling a vehicle comprising:
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determining a vehicle longitudinal velocity;
determining a vehicle lateral velocity;
determining a vehicle vertical velocity;
determining a yaw signal;
determining a roll signal;
determining a pitch signal;
determining longitudinal wheel velocities, lateral wheel velocities and vertical wheel velocities from the vehicle longitudinal velocity, the vehicle lateral velocity, the vehicle vertical velocity, the yaw signal, the roll signal, and the pitch signal;
determining a tire parameter from the longitudinal wheel velocities, lateral wheel velocities and vertical wheel velocities;
determining a tire abnormal state in response to the tire parameter; and
controlling the vehicle in response to the tire abnormal state.
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Specification