Pump unit for transmission oil and power steering oil integration of automatic transmission vehicle and its driving method

摘要

A power steering switch PSW turned on when the power steering is driven, an automatic transmission drive signal line TCS for transmitting a drive signal output from the shift control unit when the automatic transmission is driven, and the power steering switch described above When the PSW is turned on, the hydraulic power is supplied to the power steering unit, and when the driving signal is input from the automatic transmission drive signal line TCS, the microcontroller outputs a control signal for supplying the hydraulic pressure to the automatic transmission. The controller 10, the oil pump 20 to generate the hydraulic pressure in accordance with the control signal input from the micro-controller 10 to supply to the power steering unit and the automatic transmission, and the conduit to the oil pump 30 The power steering unit 30 is connected through, and the automatic transmission 40 is connected to the oil pump 30 through a conduit For the integration of transmission oil and power steering oil of an automatic transmission vehicle, which reduces the manufacturing cost by supplying hydraulic pressure to the automatic transmission and the power steering unit by integrating the hydraulic pump for the automatic transmission and the hydraulic pump for the power steering unit into one. Provide a pump device.