Tyre forces estimation for off-road motorcycles

Vehicle Lateral State Estimation Based on Measured Tyre Forces

Future active safety systems need more accurate information about the state of vehicles. This article proposes a method to evaluate the lateral state of a vehicle based on measured tyre forces. The tyre forces of two tyres are estimated from optically measured tyre carcass deflections and transmitted wirelessly to the vehicle body. The two remaining tyres are so-called virtual tyre sensors, the...

Artiicial Neural Networks for Tyre Pressure Estimation

We present an application of artiicial neural networks to monitoring the tyre pressure of cars using acoustic data derived from vibrations recorded by an accelerometer. As a preprocessing step for feature extraction we perform a spectral analysis of the sound data. The components of the estimated power density spectrum are used as input patterns for the neural estimator. These patterns are used...

Tyre labelling for energy - efficient and quieter road transport

Developing an analytical tyre model that estimates tyre forces using a least squares method

The use of control systems, especially vehicle dynamic control systems, is increasing at a remarkable rate. A key parameter that affects the performance of a vehicle dynamic control system is the interaction forces between the tyre and the road since these forces determine the acceleration, braking and steering properties of a car. Consequently, the accurate estimate of these forces is highly d...

A hub dynamometer for measurement of wheel forces in off-road bicycling.

A dynamometric hubset that measures the two ground contact force components acting on a bicycle wheel in the plane of the bicycle during off-road riding while either coasting or braking was designed, constructed, and evaluated. To maintain compatibility with standard mountain bike construction, the hubs use commercially available shells with modified, strain gage-equipped axles. The axle strain...