초록 ▼

A fluid control system for powering vehicle accessories includes a pump for generating a supply flow of hydraulic fluid, and a supply line for receiving the supply flow of hydraulic fluid. The system further includes a fan control circuit in fluid communication with the supply line, wherein the fan

A fluid control system for powering vehicle accessories includes a pump for generating a supply flow of hydraulic fluid, and a supply line for receiving the supply flow of hydraulic fluid. The system further includes a fan control circuit in fluid communication with the supply line, wherein the fan control circuit includes (1) a hydraulic motor and a bypass valve, and (2) the hydraulic motor is positioned in parallel with the bypass valve. The system also includes a steering control circuit in fluid communication with the fan control circuit, wherein (1) the steering control circuit requires a first predetermined flow of hydraulic fluid from the fan control circuit for proper operation thereof, and (2) the bypass valve and the hydraulic motor cooperate so as to create a second predetermined flow of hydraulic fluid. Moreover, the system includes a sensor for detecting operational pressure within the fluid supply line and generating pressure status signals in response thereto. In addition, the system includes an electronic control unit for generating valve control signals. The electronic control unit controls the bypass valve so that the second predetermined flow of hydraulic fluid is greater than or equal to in magnitude than the first predetermined flow. Moreover, operation of the bypass valve is dependent on the pressure status signals generated by the sensor.

대표청구항 ▼

[ What is claimed is:] [1.] A fluid control system for powering vehicle accessories, comprising:a pump for generating a supply flow of hydraulic fluid;a supply line for receiving said supply flow of hydraulic fluid;a fan control circuit in fluid communication with said supply line, wherein said fan

[ What is claimed is:] [1.] A fluid control system for powering vehicle accessories, comprising:a pump for generating a supply flow of hydraulic fluid;a supply line for receiving said supply flow of hydraulic fluid;a fan control circuit in fluid communication with said supply line, wherein said fan control circuit includes (1) a hydraulic motor and a bypass valve, and (2) said hydraulic motor is positioned in parallel with said bypass valve;a steering control circuit in fluid communication with said fan control circuit;a sensor for detecting operational pressure of a summation of the pressure across the fan control circuit and said steering control circuit within said fluid supply line and generating pressure status signals in response thereto andan electronic control unit for generating valve control signals,wherein said electronic control unit controls said bypass valve so that pressure is produced at said supply line controlled by the electronic control unit in response to said pressure status signals.