Tire cornering power on-board estimation and monitoring using steering moment
First Claim
1. A tire cornering power estimation and monitoring system, comprising:
- a steering torque sensor, a steering wheel angle sensor, a yaw rate sensor, a lateral acceleration sensor, and a speed sensor;
at least one controller configured to receive signals from the steering torque sensor, steering wheel angle sensor, yaw rate sensor, lateral acceleration sensor, and speed sensor and to estimate a front effective aligning stiffness based on at least one of the received signals, wherein the controller is further configured to compare the estimated front effective aligning stiffness to a reference front aligning stiffness and to send a notification if the comparison indicates that one or more of the vehicle'"'"'s tires need to be checked or serviced; and
a notification system configured to receive a signal from the controller and indicate that one or more of the vehicle'"'"'s tires need to be checked or serviced.
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Accused Products
Abstract
A tire cornering power estimation and monitoring system may include a steering torque sensor, a steering wheel angle sensor, a yaw rate sensor, a lateral acceleration sensor, and a speed sensor. The system may further include at least one controller configured to receive signals from the steering torque sensor, steering wheel angle sensor, yaw rate sensor, lateral acceleration sensor, and speed sensor and send a notification if the signals indicate that one or more of the vehicle'"'"'s tires need to be checked or serviced. The system may further include a notification system configured to receive a signal from the controller and indicate that one or more of the vehicle'"'"'s tires need to be checked or serviced.
27 Citations
12 Claims
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1. A tire cornering power estimation and monitoring system, comprising:
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a steering torque sensor, a steering wheel angle sensor, a yaw rate sensor, a lateral acceleration sensor, and a speed sensor; at least one controller configured to receive signals from the steering torque sensor, steering wheel angle sensor, yaw rate sensor, lateral acceleration sensor, and speed sensor and to estimate a front effective aligning stiffness based on at least one of the received signals, wherein the controller is further configured to compare the estimated front effective aligning stiffness to a reference front aligning stiffness and to send a notification if the comparison indicates that one or more of the vehicle'"'"'s tires need to be checked or serviced; and a notification system configured to receive a signal from the controller and indicate that one or more of the vehicle'"'"'s tires need to be checked or serviced. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tire cornering power estimation and monitoring system, comprising:
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a steering torque sensor, a steering wheel angle sensor, a yaw rate sensor, a lateral acceleration sensor, and a speed sensor; at least one controller configured to receive signals from the steering torque sensor, steering wheel angle sensor, yaw rate sensor, lateral acceleration sensor, and speed sensor and send a notification if the signals indicate that one or more of the vehicle'"'"'s tires need to be checked or serviced; and a notification system configured to receive a signal from the controller and indicate that one or more of the vehicle'"'"'s tires need to be checked or serviced; wherein the controller is configured to determine a front total steering moment based on at least one of the signals received from the steering torque sensor, steering wheel angle sensor, yaw rate sensor, lateral acceleration sensor, and speed sensor; wherein the controller is configured to determine a front tire slip angle based on at least one of the signals received from the steering torque sensor, steering wheel angle sensor, yaw rate sensor, lateral acceleration sensor, and speed sensor; and wherein the controller is configured to estimate a front effective aligning stiffness based on the front total steering moment and the front tire slip angle. - View Dependent Claims (9, 10, 11, 12)
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Specification