Line pressure detection and compensation device of automatic transmission

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line pressure detecting and compensating device for an automatic transmission and, more particularly, to a line pressure detecting and compensating device for a line pressure detecting and compensating device installed in a line pressure discharging hole 11 formed in a case 1 of an automatic transmission, A sensor 2; A line pressure meter 3 selectively connected to the connector 21 of the line pressure detecting sensor 2 to digitally display line pressure; A TCU 4 selectively connected to the connector 21 of the line pressure detecting sensor 2 to selectively drive the warning lamp 5 and the line pressure compensating solenoid valve 6 when the line pressure is not more than a predetermined value, Wow; A warning lamp (5) provided on the instrument panel of the front portion of the driver's seat and flickered under the control of the TCU (4) when the line pressure is not more than a predetermined value; A line pressure compensating solenoid valve 6 is provided which is connected to the inside of the automatic transmission and compensates the line pressure under the control of the TCU 4 when the line pressure is not more than a predetermined value, The alarm lamp is blinked instantly so that the driver can see the result and the line pressure is automatically compensated through the line pressure compensating solenoid valve, so that the process according to the line pressure inspection is very simple, The automatic transmission can be prevented from being damaged in advance.