General Information, AutoShift

cen dm 08.02.001

Refer to the Eaton website for additional information, www.roadranger.com.


10-Speed RTO Models


Eaton Fuller 10-speed AutoShift automated transmissions have 10 forward speeds and two reverse speeds. The transmission consists of a 5-speed front section and a 2-speed rear section. The driver must use the clutch to start and stop the vehicle.

Fig. 1, Three-Position SmartShift Lever (with Meritor SureShift)

Note: To upshift, pull the lever up (towards you). To downshift, pull the lever down (away from you).

  1. SmartShift Control Lever

  2. Upshift Direction

  3. Reverse Position (of selector switch)

  4. Selector Switch

  5. Neutral Position (of selector switch)

  6. Forward Position (of selector switch)

  7. Downshift Direction

  1. Upshift (in manual mode, pull upward)

  2. Steering Wheel

  3. Reverse Position

  4. Neutral Position

  5. Drive Position

  6. Downshift (in manual mode, push downward)

  7. Steering Column

Fig. 2, SmartShift Control Operation (FreedomLine control, showing only R, N, D positions)

The driver does not need to break torque or increase or decrease engine speed to synchronize the shift. The transmission signals the engine controller when to break torque and the engine controller automatically increases or decreases engine speed. When engine speed is correct, the transmission engages the next gear and signals the engine controller to resume operation.

The AutoShift system consists of the following components:

  • The Gear Display Module (see Fig.) mounted on the dashboard indicates the current gear position or transmission status. The display also flashes the next gear to be engaged while the transmission is in Neutral during a gear change.

  • The Driver Command Console (DCC) replaces the shift lever and controls the transmission's shift patterns.

  • Gear Display Module

  • Module Detail

  1. Current Gear

  2. 9th Gear Engaged

  3. In 9th Gear, Preselected Toward 10th

  4. Out Of Gear, Waiting For Engine/Transmission rpm To Synchronize

  5. 10th Gear Engaged

Fig. 3, Gear Display Module

  • The DCC (see Fig.) has indicators for reverse, neutral, and the three forward positions: drive, hold, and low. Service and wait lamps are also located on the console. The gear select handle contains upshift and downshift buttons and a gear select lever detent button.

  • Console Top View

  • Select Handle Side View

  1. Indicator Lamps

  2. Gear Position Indicator

  3. Upshift Button

  4. Detent Button

  5. Downshift Button

Fig. 4, Enhanced Driver Command Console (DCC)

  • The shifter performs shifts at the front portion of the transmission. It preselects the shift to neutral and completes the gear change after driver input.

  • The Electronic Control Unit (ECU) includes two controllers: a transmission ECU and a system ECU. The transmission ECU controls all transmission shift functions and the system ECU manages all vehicle interfaces for transmission shift functions.

  • An electronic range valve, controlled by the transmission ECU, is used to perform range shifts.

Note:
Parent topic: Eaton Fuller AutoShift Automated Transmissions
Document Number: 0000118341
Manual Publication Date: 2024-05-13
Topic Publication Date: 2024-06-06