HYDROGEN FUELLED HYBRID POWERTRAIN AND VEHICLE

摘要

A hydrogen-powered hybrid powertrain system (100, 200, 300, 500, 1000) includes a hydrogen-fuelled internal combustion engine (114, 202, 302, 400, 902) operating at a lean air/fuel mixture, and a supercharger (436) for boosting a primary drive torque produced by the engine primarily over a high operating speed range. An electric motor/generator (232, 314, 905) generates a secondary drive torque for the vehicle, such that the secondary drive torque complements the boosted primary drive torque over at least a low operating speed range of the powertrain. A disconnect clutch (312, 510) disposed between the engine and the motor/generator engages and disengages the engine from the motor/generator, and serves to transfer the boosted primary driver torque through the motor/generator and to a power transmission system (116, 316, 550). The input at the power transmission is thus a combination of the boosted primary drive torque and the secondary drive torque having an enhanced torque characteristic over at least the low operating speed range.