| 摘要 |
A modified automatic transmission includes a simple and inexpensive accumulator orifice plate residing between a valve control body and a second gear accumulator. The accumulator is in parallel fluid communication with a second gear servo and moderates changes to pressure of transmission fluid flowing to the second gear servo to reduce or eliminate harsh shifting. The accumulator is also in fluid communication with an Electronic Pressure Control (EPC) accumulator valve which provides an opposing transmission fluid flow into the accumulator to provide faster or firmer shifting when desired. The accumulator orifice plate includes orifices aligned with passages carrying the transmission fluid flows into the accumulator thereby restricting the flows. The orifices have specific sizes to limit the transmission fluid flows into the accumulator and thereby customize the shifting characteristics to suit an individual driver's preferences and/or needs and stabilizing pressure changes due to the EPC accumulator valve.
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