Virtual braking system for hydrostatically driven vehicle

Details Virtual braking system for hydrostatically driven vehicle Virtual braking system for hydrostatically driven vehicle

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 61/46 (2006.01) F16H 59/18 (2006.01) F16H 59/54 (2006.01)

Patent

CA 2431381

A hydrostatic vehicle drive system features a "virtual" braking system designed to emulate the braking response of a mechanically driven vehicle equipped with an automatic transmission and disk or drum brakes. A microprocessor controls output of the pumps used to power the hydraulic motors, and causes the power output to decrease independently and gradually according to a decelaration ramp, rather than instantaneously with changes in fuel pedal position.

L'invention se rapporte à un système de commande de véhicule hydrostatique caractérisé par un système de freinage "virtuel" destiné à émuler la réponse de freinage d'un véhicule à commande mécanique équipé d'une transmission automatique et de freins à disque ou à tambour. Un microprocesseur est chargé de commander la sortie des pompes servant à alimenter les moteurs hydrauliques et fait en sorte que la sortie d'alimentation diminue indépendamment et graduellement par rapport à une piste de décélération, plutôt que de diminuer l'alimentation de manière instantanée en raison des altérations de combustible selon la position du pied sur la pédale.

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