Control system for transmission unit of vehicle with exhaust turbo charger, using additional clutch for bridging turbo gap

摘要

When starting a vehicle equipped with an exhaust turbo charger the driver has the feeling of a delayed reaction of the engine (1) mainly caused by the reduction of the injected fuel in order to avoid the production of soot. The drive train of the new system is assembled of the engine (1) and the transmission unit (3) with the torque converter (2) between them. A bridging clutch (4) is switched parallel to the converter (2). When the clutch (4) is completely closed the torque converter (2) is bridged as well as the turbo gap noticed before.