COOLER GP-FLTR BASE & ENG OIL 2W2271 - Caterpillar

Caterpillar Dynamic Transmission Output Control (DTOC)
Automated Speed Control (ASC) Function (CX31-P600 Only)
Automated Speed Control (ASC) is a transmission-output-speed control feature currently available with the Caterpillar CX31-P600 Well Service Transmission in Application Code 220 (Manual Shift Pumper). ASC is a software feature that is able to be retrofitted onto previous CX31-P600 Well Service Transmissions in the field with only a transmission software update. ASC utilizes both torque converter operation and lockup operation to achieve an operator-commanded transmission output speed (pump flow), providing the customer with a method to achieve very low transmission output speeds, for use in applications that require very low pump flow (cementing, etc.). While this feature controls transmission output speed, not pump flow, the feature is designed to provide the customer-commanded transmission output speed while operating the transmission in the most efficient condition.ASC Operation Description
Once the required inputs are provided by the operator, and ASC operation is initiated, the transmission electronic control module takes control, and begins the process of controlling engine speed and the torque converter lockup clutch to achieve the operator-commanded transmission output speed. Transmission output speed can be commanded using either a PWM signal or J1939 message. Engine speed is controlled by the transmission through the J1939 TSC1 command with medium priority.Lockup Clutch Operation
Lockup clutch operation is automatically controlled by the transmission Electronic Control Module (ECM). The lockup points are designed to provide the most efficient transmission operation possible, while ensuring torsional system stability at low speeds, and achieving the customer-commanded transmission output speed. In ASC mode, the lockup clutch will engage at a lower engine speed than seen in standard pumping control mode.Speed-Synching
Inorder to maintain a consistent transmission output speed (pump flow) during lockup clutch engagements and gear shifts, the transmission control will automatically synchronize engine speed as needed. The effect of this speed-synching operation is consistent pump flow before, during, and after the lockup clutch engagement or gear shift.ASC Shift Control Mode Function
In Manual-Shift mode, the operator is required to command the operating gear. In this mode, ASC will follow the commanded transmission output speed up to the highest speed achievable in the current gear. If the transmission is in 1F, and the operator commands a transmission output speed higher than what is achievable in 1F, the control will command transmission output speed to the highest achievable speed in the current gear. If the transmission is shifted to a higher gear, the control will react to attempt to achieve the commanded transmission output speed in the new gear.ASC"Set" / "Hold" Mode Function
DTOC ASC provides a selectable "Set" / "Hold" function (J1939 or switched input) that allows the operator to hold the transmission output speed at a commanded value, while pre-setting a new value for future use. While operating in "Set" mode, the transmission output speed will continually follow the desired transmission output speed as commanded by the operator. For example, if the operator increases the transmission output speed command from 200rpm to 300rpm, the transmission ECM will automatically control engine speed