摘要 |
A hydraulic regenerative braking system for a vehicle is provided. The system includes two hydraulic machines (22, 24), each of which is disposed proximate a corresponding vehicle wheel (14, 16). a transformer (32) is in communication with each of the hydraulic machines, and with a pair of accumulators (30, 34). Each of the hydraulic machines is operable as a pump, pumping fluid to at least one of the accumulators when the vehicle is braking. Each of the hydraulic machines is also operable as a motor, receiving pressurized fluid and transferring toque to the vehicle wheels. The transformer is operable to vary the pressure of the fluid received by the hydraulic machines. |