摘要:
The invention relates to a system for evaluating the speed of a vehicle, said system comprising: a system for evaluating the condition of a tyre, comprising a casing that is positioned on the ground; means for determining at least two instants at which the vehicle passes over two optionally-different passage points of the casing of the measurement system; and means for calculating the passage speed of the vehicle over the casing according to the aforementioned passage instants and dimensional data of the casing and/or the vehicle. The invention also relates to a method using such a system.
摘要:
The invention relates to a system for evaluating the condition of a tyre, said system comprising a first casing which is positioned on the ground and a device for detecting the wear of a tyre as it passes over the first casing. The system also comprises: a first device for detecting the presence of a tyre on the first casing; and electronic means for activating the wear-detection device when the presence of a tyre is detected by the presence-detection device.
摘要:
The invention relates to a system for evaluating the condition of a tyre, said system comprising a first casing which is positioned on the ground. The system comprises: a first sensor installed in the casing and intended to measure a first characteristic of a tyre travelling over the casing; and a second sensor installed in the casing and intended to measure a second characteristic of a tyre travelling over the casing, said first and second sensors being positioned such that the instants at which a vehicle travels over the casing at each of the sensors are different. The system also comprises an electronic control unit including means for determining the direction of travel of the vehicle on the casing according to the positions of each of the sensors in the casing and the instants at which a vehicle travels over each of the sensors.
摘要:
The invention relates to a method for measuring the thickness of a layer of rubber-like material, said layer of material comprising a free face in contact with the air and a face connected to an adjacent casing formed by elements which are electrically insulated from one another and contain at least one hysteresis material having a magnetic permeability above that of air. The method comprises the following steps: a step during which a sensor element that emits an alternating magnetic field is brought close to the layer of material of which the thickness is to be measured; a step during which the hysteresis losses in the adjacent casing are measured at the terminals of the sensor element; and a step during which the thickness of the layer of material is evaluated according to the hysteresis losses.
摘要:
The invention relates to a method for detecting the under-inflation state of a tyre mounted on a vehicle, said method comprising the following steps: a step of determining a first contact area measurement of a first tyre mounted on the vehicle, a step of determining a second contact area measurement of a second tyre mounted on the vehicle, and a step of comparing the first and second contact area measurements and, if the difference between the two measurements is above a pre-determined alarm threshold, inferring the existence of an under-inflation situation.
摘要:
The invention concerns a system for evaluating the condition of a tyre, the system comprising a first housing set on the ground and a wear detection device for detecting the wear of a tyre when the tyre passes over said first housing, the system further comprising - a first device for detecting the presence of a tyre on the first housing, and - electronic means for activating the wear detection device when the presence detection device detects the presence of a tyre.
摘要:
The invention relates to a system for assessing the condition of a tyre, the system comprising at least a first and a second single module for assessing the condition of a tyre, each single module comprising a housing placed on the ground, said housing containing at least one detection device for assessing a parameter of the tyre when the tyre passes over said housing and data-transmission means, said system also comprising: a remote database and a data-transmission gateway between the single modules and the database; and means for cooperation between the first and second single modules.