System and method for controlling the switching in of...

B - Operations – Transporting – 60 – K

Patent

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B60K 25/00 (2006.01) F02B 67/00 (2006.01)

Patent

CA 2268828

A method and system for controlling the switching in of ancillary equipment driven by an engine of a vehicle, the ancillary equipment being arranged to be driven by the engine until at least a minimum operating level relating to the status of the ancillary equipment is attained. The method includes the steps of: determining in which of three modes the vehicle is in, these modes being a first mode in which the engine is driving the vehicle, a second mode in which the vehicle is being braked and a third mode in which the vehicle is coasting; and in the first mode causing the ancillary equipment to be switched in only if the status of the ancillary equipment is below a predetermined minimum level; in the second mode causing the ancillary equipment to be switched in if the status of the ancillary equipment is below a predetermined maximum level; and in the third mode causing the ancillary equipment to be switched in only if the status of the ancillary equipment is below a predetermined intermediate level between the maximum level and the minimum level.

La présente invention se rapporte à un procédé et à un système permettant de gérer le démarrage du matériel auxiliaire commandé par un moteur de véhicule. Le matériel auxiliaire est conçu pour être commandé par le moteur jusqu'à ce qu'un niveau de fonctionnement minimum lié à l'état du matériel soit au moins atteint. Le procédé inclue les phases durant lesquelles on détermine le mode de fonctionnement du véhicule parmi les trois possibles: un premier mode où le moteur commande le véhicule; un deuxième mode où le véhicule est freiné, et enfin un troisième mode où le véhicule roule. Le premier mode ne permet le démarrage du matériel que si l'état de ce dernier est en dessous d'un niveau minimum préétabli; le deuxième mode permet audit matériel de démarrer si son état est en dessous d'un niveau maximum préétabli; quant au troisième mode, le matériel auxiliaire ne démarre que si son état est en dessous d'un niveau intermédiaire préétabli se situant entre le niveau maximum et le niveau minimum.

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