VEHICLE STEERING SYSTEM
First Claim
1. A vehicle steering system comprising:
- a sensor that detects a vibration of a vehicle wheel of a vehicle; and
a control device including a frequency analysis unit that resolves the vibration of the vehicle wheel detected by the sensor into a power spectrum at each predetermined frequency,wherein the control device executes compensation assist control that suppresses at least one of a deflection of the vehicle and a vibration of a steering component of the vehicle that are caused by a puncture or a burst of the vehicle wheel, based on the vibration of the vehicle wheel that occurs in a specific frequency domain formed by a frequency range between a normal-wheel frequency calculated based on a radius of the vehicle wheel when the vehicle wheel is normal and a traveling speed of the vehicle and an abnormal-wheel frequency calculated based on a radius of the vehicle wheel when the vehicle wheel is punctured or burst and the traveling speed.
1 Assignment
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Accused Products
Abstract
A vehicle steering system includes an axial force sensor that detects a vibration of a vehicle wheel; and a control device including an FFT analysis unit that resolves the vibration of the vehicle wheel into a power spectrum. The control device executes compensation assist control that suppresses one of a deflection of the vehicle and a vibration of a steering component that are caused by a puncture or a burst of the vehicle wheel, based on the vibration calculated based on a radius of the vehicle wheel when the vehicle wheel is normal and a vehicle speed and an abnormal-wheel frequency calculated based on a radius of the vehicle wheel when the vehicle wheel is punctured or burst and the vehicle speed.
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Citations
6 Claims
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1. A vehicle steering system comprising:
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a sensor that detects a vibration of a vehicle wheel of a vehicle; and a control device including a frequency analysis unit that resolves the vibration of the vehicle wheel detected by the sensor into a power spectrum at each predetermined frequency, wherein the control device executes compensation assist control that suppresses at least one of a deflection of the vehicle and a vibration of a steering component of the vehicle that are caused by a puncture or a burst of the vehicle wheel, based on the vibration of the vehicle wheel that occurs in a specific frequency domain formed by a frequency range between a normal-wheel frequency calculated based on a radius of the vehicle wheel when the vehicle wheel is normal and a traveling speed of the vehicle and an abnormal-wheel frequency calculated based on a radius of the vehicle wheel when the vehicle wheel is punctured or burst and the traveling speed. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification