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发明授权
CN106183772B 蓄能器辅助的流体静力学动力传动系统及其优化方法 有权

蓄能器辅助的流体静力学动力传动系统及其优化方法
摘要：
本发明提供用于一种用于确定流体静力学蓄能器的最佳负载状态控制函数以及采用控制系统来调节流体静力学蓄能器的负载状态以跟踪最佳负载状态函数的方法，包括如下步骤：提供流体静力学动力传动系统；提供控制器；利用控制器计算最佳负载状态控制函数；利用最佳负载状态函数和多个输入的至少一部分计算流体静力学蓄能器的最佳负载状态；将流体静力学蓄能器的负载状态与利用最佳负载状态控制函数计算得到的最佳负载状态比较以确定负载状态误差；利用负载状态误差和多个输入的至少一部分计算用于负载状态的修正值；以及通过利用泵和马达中的一者使流体静力学蓄能器进行加载或者通过使流体静力学蓄能器进行排放来调节流体静力学蓄能器的负载状态。
摘要（英）：

A hydrostatic driveline for a vehicle, a method for minimizing a fuel consumption rate of the vehicle, and a method for tracking an optimal state of charge function for a hydrostatic accumulator are provided. The driveline includes a power source, a drive axle, a first fluid accumulator, a second fluid accumulator, an auxiliary circuit including a first pump drivingly engaged with the power source, and a drive circuit including a second pump drivingly engaged with the power source, a motor drivingly engaged with the drive axle, and a directional valve. The second pump is in fluid communication with the directional valve and the directional valve in fluid communication with the first fluid accumulator and the second fluid accumulator. The directional valve may be selectively controlled to direct fluid from the second pump and the motor to the first fluid accumulator and the second fluid accumulator.

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