FixVault

Negative Split Mode

The system operates in this mode when the engine is running but the generator motor is reducing the engine speed. This mode is never preferred but occurs if the engine is running, the vehicle speed is high, the high voltage traction battery is charged.

Negative Split Mode 

Fig 1: Hybrid Electric System Operation Diagram (Negative Split Mode)
G08291629Courtesy of FORD MOTOR CO.
Item Number Description
1 - Traction Motor
2 - Intermediate Shaft
3 - To Drive Axles
4 - Planetary Gear Set
5 - Internal Combustion Engine
6 - Electrical Power
7 - Mechanical Power
8 - Generator Motor
9 - Traction Battery