| 摘要 |
A vehicle (1) having a hydraulic hybrid powertrain (1000) comprises a power take off unit (22), a hydraulic pump (1004), a hydraulic accumulator (1006), an accumulator isolation valve (1009), an accumulator solenoid (1010), and a vehicle hydraulic component. The hydraulic pump (1004) mechanically connects to the power take off unit and is driven by the power take off unit. The hydraulic accumulator (1006) is disposed in fluid communication with the hydraulic pump (1004) and receives and stores pressurized hydraulic fluid from the hydraulic pump. The accumulator isolation valve (1009) has a first position and second position. The accumulator isolation valve (1009) is disposed in fluid communication with the hydraulic accumulator (1006). The accumulator solenoid (1010) connects to the accumulator isolation valve (1009) and positions the accumulator isolation valve (1009) to the first position and the second position. The vehicle hydraulic component is disposed in fluid communication with the accumulator isolation valve (1009) and the hydraulic accumulator (1006). |
