Vehicle wheel state monitoring device and method
First Claim
1. A vehicle wheel state monitoring device comprising:
- a detector which is provided on a vehicle wheel and which detects an up-down direction force transmitted from a road surface to a tire of the vehicle wheel;
a calculation unit that calculates a road surface input that is a load applied to the tire using the detected up-down direction force;
a recording device which is provided on the vehicle wheel and which pre-records information related to the vehicle wheel;
a vehicle wheel distinguishing unit that distinguishes a type of the vehicle wheel based on the information which is received from the recording device;
a setting unit that sets a first threshold value in accordance with the distinguished type of the vehicle wheel; and
a determination unit that determines whether it is probable that the vehicle wheel is damaged by comparing the road surface input and the set first threshold value.
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Accused Products
Abstract
A vehicle wheel state monitoring device appropriately determines whether it is probable that a vehicle wheel is damaged by setting a threshold value for damage determination in accordance with a type of the vehicle wheel fitted to the vehicle. A road surface input calculation portion calculates a road surface input that is a load applied to the tire based on an up-down direction force transmitted to the tire from a road surface. A damage determination portion determines whether it is probable that the vehicle wheel is damaged by comparing the road surface input and a threshold value that is pre-set. A vehicle wheel distinguishing portion receives information from a recording device provided on the vehicle wheel, and distinguishes the type of vehicle wheel fitted to the vehicle wheel. A threshold setting portion sets a threshold value in accordance with the distinguished type of the vehicle wheel.
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Citations
8 Claims
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1. A vehicle wheel state monitoring device comprising:
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a detector which is provided on a vehicle wheel and which detects an up-down direction force transmitted from a road surface to a tire of the vehicle wheel;
a calculation unit that calculates a road surface input that is a load applied to the tire using the detected up-down direction force;
a recording device which is provided on the vehicle wheel and which pre-records information related to the vehicle wheel;
a vehicle wheel distinguishing unit that distinguishes a type of the vehicle wheel based on the information which is received from the recording device;
a setting unit that sets a first threshold value in accordance with the distinguished type of the vehicle wheel; and
a determination unit that determines whether it is probable that the vehicle wheel is damaged by comparing the road surface input and the set first threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle wheel state monitoring method comprising:
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detecting an up-down direction force transmitted from a road surface to a tire of a vehicle wheel;
calculating a road surface input that is a load applied to the tire using the detected up-down direction force;
receiving information from recording device that pre-records information related to the vehicle wheel, the recording device being provided on the vehicle wheel;
distinguishing a type of the vehicle wheel based on the received information;
setting a threshold value in accordance with the distinguished type of the vehicle wheel; and
determining whether it is probable that the vehicle wheel is damaged by comparing the road surface input and the set threshold value.
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Specification