The invention relates to a drive wheel traction chain for a hybrid vehicle comprising a heat engine (2) and a hydraulic traction machine (22) powered by hydraulic accumulators (10, 12) forming two power units that can be used to drive the drive wheels (8) of the vehicle. The invention is characterised in that it also comprises: a recharge module (14) including electricity storage batteries (30) connected to an electric machine (34) which drives a hydraulic recharge machine (36) that powers the hydraulic accumulators (10, 12), and a means (42) for controlling the recharge module (14) connected to the means for controlling the power units (2, 22) of the vehicle.