Apparatus for measuring dynamic load characteristics of wheels
First Claim
1. An apparatus for measuring dynamic load characteristics of wheels, comprising a washer-type strain sensor incorporated between a body of a vehicle and a wheel at a portion where it receives force from a road surface, and a means for measuring an output of the washer-type strain sensor while the vehicle is traveling.
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Abstract
An apparatus for measuring dynamic load characteristics of wheels, which can be relatively easily installed on a portion between the body of the vehicle and the wheel to receive force from the road surface, which is cheap yet makes it possible to grasp the dynamic load characteristics of the wheel during the travel maintaining a sufficient degree of accuracy. The apparatus comprises a washer-type strain sensor incorporated between the body of a vehicle and a wheel, at a portion where it receives force from the road surface, e.g., at a portion where a shock absorber of the suspension system is attached to the main body of vehicle, and a means for measuring an output of the washer-type strain sensor while the vehicle is traveling.
21 Citations
9 Claims
- 1. An apparatus for measuring dynamic load characteristics of wheels, comprising a washer-type strain sensor incorporated between a body of a vehicle and a wheel at a portion where it receives force from a road surface, and a means for measuring an output of the washer-type strain sensor while the vehicle is traveling.
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9. An apparatus for measuring the dynamic load characteristics of wheels, comprising:
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a washer-type strain sensor incorporated between a body of a vehicle and a wheel, at a portion where it receives force from the road surface to detect the dynamic load of the wheel;
a sensor for detecting a vehicle speed;
a sensor for detecting a steering angle;
a sensor for detecting a gravitational acceleration (G) in the lateral direction and a gravitational acceleration (G) in the longitudinal direction;
a sensor for detecting a yawing angle of the wheel;
a sensor for detecting a damper stroke; and
a means that receives signals from these sensors to measure a change in a rolling caused by the shifting amount of dynamic load of the wheel, cornering performance of a test tire for respective dynamic loads, and a marginal coefficient of friction between the tire and a road surface.
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Specification