| 摘要 |
PROBLEM TO BE SOLVED: To restrain a pulsation in all throttle pressure range. SOLUTION: The hydraulic control mechanism of an automatic transmission having an accumulator comprises a regulator valve which generates a line pressure by carrying out a hydraulic control of an oil delivered from an oil pump 30, a reducing valve 60 which reduces the line pressure, and a throttle valve 20 which introduces a hydraulic pressure from the reducing valve 60 and generates a throttle pressure in accordance with engine load. The hydraulic control mechanism of an automatic transmission communicates with the throttle valve 20 and the regulator valve, and reduces a pulsation of the throttle pressure. |
