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(2)油压控制。油压控制原理框图如图21所示。1)管路油压控制及次级油压控制。通过高精度地对管路油压控制及次级油压控制来降低摩擦阻力,提高燃油经济性。2)通常情况下的油压控制。一般设定在图21框图里所对应的行驶状态下最佳的管路油压及次级油压。3)次级油压反馈控制。用油压传感器检测出次级油压,进行反馈控制,来设定更高精度的次级油压。
(2) hydraulic control. Hydraulic control block diagram shown in Figure 21. 1) Line hydraulic control and secondary hydraulic control. High-precision piping hydraulic control and secondary hydraulic control to reduce friction and improve fuel economy. 2) Under normal circumstances, hydraulic control. The general settings in the block diagram in Figure 21 corresponds to the best running under the pipeline hydraulic and secondary hydraulic pressure. 3) Secondary hydraulic feedback control. The secondary pressure is detected by the hydraulic pressure sensor and feedback control is performed to set the secondary pressure with higher accuracy.