Anordnung zur Steuerung der Gangschaltung eines einem Stroemungsgetriebe nachgeschalteten mechanischen Fahrzeuggetriebeteiles

摘要

An electro-mechanical system is utilized to control shifting of gears of the transmission of a vehicle driven by an internal combustion engine. Shifting is responsive to torque input and output of fluid torque converters or fluid couplings, and vehicle speed. The system contemplates the use of speed sensors connected to various power transmitting shafts which develop electric signals having a magnitude of current or voltage fed to a computer programmed in accordance with a predetermined formula whereby output torque of the fluid drive is derived and in subsequent conjunction with an electric signal having voltage or current in magnitude proportional to vehicle speed effects control of valves which actuate the gear shifting mechanisms. The programming of the computer is on the basis of an equation such that comparative input and output speeds of fluid torque converters or couplings, in the form of proportional electrical magnitudes, is processed by the computer to an electrical output signal proportional to output torque of the converter or coupling.