Portable roller dynamometer and vehicle testing method

G - Physics – 01 – M

Patent

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Details

G01M 17/007 (2006.01) G01L 3/22 (2006.01) G01L 3/24 (2006.01) G01L 5/28 (2006.01) G01M 17/06 (2006.01)

Patent

CA 2397809

A roller dynamometer is provided, having at least one supporting carriage having a rotatable roller and a dynamome- ter linked to the roller for measuring torque output of a vehicle. The carriages are rollable on a substrate for positioning under a vehicle. In one aspect, multiple dynamometer and roller units are provided, for engagement with multiple vehicle wheels, with the units being linked electronically for common control by a control unit that simulates either straight line or curved driving conditions. In a further aspect, the dynamometer is supported on the carriage by a rotary mount. In a further aspect, the rollers have a generally hourglass shape to permit vehicle wheel self-centering. Image

L'invention concerne une unité à rouleaux et à dynamomètres, qui possède au moins un chariot de support doté d'un rouleau rotatif et d'un dynamomètre relié au rouleau et destiné à mesurer le couple de sortie d'un véhicule. Les chariots peuvent rouler sur un substrat en vue de leur positionnement sous le véhicule. Selon un aspect, plusieurs unités à rouleaux et dynamomètres sont destinées à venir en contact avec plusieurs roues de véhicule, lesdites unités étant connectées électroniquement en vue d'une commande commune par une unité de commande qui simule des conditions de conduite soit en ligne droite, soit en virage. Selon un autre aspect, le dynamomètre est supporté sur le chariot par un montage rotatif. Selon un autre aspect encore, les rouleaux ont généralement une forme de sablier, ce qui permet l'autocentrage.

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