Abrégé

A level indicator device is disclosed for use in conjunction with a road vehicle such as a caravan, trailer, motor home or mobile crane and which comprises an electrically energized level sensor that is arranged to provide an output signal that is representative of a prevailing level of the sensor, a signal generator associated with the sensor and arranged in use to generate a signal that is representative of a substantially horizontal level when that level is sensed to prevail by the sensor. A radiofrequency signal transmitter is located in circuit with the signal generator and is arranged to transmit a radiofrequency signal that is modulated by the signal generated by the signal generator, and a remote receiver is provide and is arranged to receive and demodulate the radiofrequency signal. In one embodiment of the level indicator device the level sensor comprises a MEMS accelerometer that measures G-force in plural axes. Also disclosed is a vehicle level adjusting system for a road vehicle and which comprises a level indicator device as defined and a plurality of level adjusting devices, in the form of ramps or jacking actuators, that are arranged to effect levelling of the vehicle.

Classes IPC  ?

• B60Q 1/00 - Agencement des dispositifs de signalisation optique ou d'éclairage, leur montage, leur support ou les circuits à cet effet
• B60Q 3/04 - Agencement des dispositifs d'éclairage pour l'intérieur des véhicules, leur montage, leur support ou les circuits à cet effet pour éclairage de l'habitacle des passagers ou du conducteur pour le tableau de bord
• G01C 9/00 - Mesure de l'inclinaison, p. ex. par clinomètres, par niveaux
• G01C 9/04 - Moyens de transmission entre l'élément sensible et l'indicateur final pour donner une lecture agrandie

Abrégé

A level indicator device is disclosed for use in conjunction with a road vehicle such as a caravan, trailer, motor home or mobile crane and which comprises an electrically energised level sensor that is arranged to provide an output signal that is representative of a prevailing level of the sensor, a signal generator associated with the sensor and arranged in use to generate a signal that is representative of a substantially horizontal level when that level is sensed to prevail by the sensor. A radiofrequency signal transmitter is located in circuit with the signal generator and is arranged to transmit a radiofrequency signal that is modulated by the signal generated by the signal generator, and a remote receiver is provide and is arranged to receive and demodulate the radiofrequency signal. In one embodiment of the level indicator device the level sensor comprises a MEMS accelerometer that measures G-force in plural axes. Also disclosed is a vehicle level adjusting system for a road vehicle and which comprises a level indicator device as defined and a plurality of level adjusting devices, in the form of ramps or jacking actuators, that are arranged to effect levelling of the vehicle.

Classes IPC  ?

• G05D 3/00 - Commande de la position ou de la direction
• G01C 9/00 - Mesure de l'inclinaison, p. ex. par clinomètres, par niveaux
• B62D 33/063 - Cabines de conducteur pouvant être déplacées d'une position dans au moins une autre position, p. ex. basculables, pivotables autour d'un axe vertical, pouvant être déplacées d'un côté à l'autre du véhicule
• G08B 1/00 - Systèmes de signalisation caractérisés seulement par la forme de transmission du signal