HYDROSTATIC TRANSMISSION WITH INTEGRAL-BRAKING ENERGY RECUPERATION

摘要

1. A hydrostatic transmission, operating in closed circuit and with recovery of braking energy, the said transmission comprising, coupled directly to each driven road wheel, an hydraulic motor (4) connected to an hydraulic pump (3) of variable capacity and supplied through a feed pump (2), characterised in that, in the said transmission, the hydraulic motors (4) are of fixed capacity and cooperate with additional braking means comprising at least one proportional throw pressure limiter (11, 18) disposed in the said closed circuit, the pressure limiters serving as means for braking the vehicle and replacing the known braking means, the said additional braking means cooperating with an hydraulic distributor (5) which operates as a reverser for the direction of travel, and being controlled by control means.