FORFARANDE FOR STYRNING AV EN AUTOMATISK VEXELLADA FOR FERDDON MED ELEKTRONISKT STYRSYSTEM, SERSKILT HYDROMEKANISK VEXELLADA, OCH EN PROGNOSERANDE ANORDNING FOR GENOMFORANDE AV FORFARANDET

摘要

In order to prevent a cyclic repeating of switching of vehicle gears to higher speeds for automatic transmissions at increased running resistances, an electronic control system is provided with a prognostic circuit which predicts the acceleration which can be expected after switching to a higher speed and which allows the switching to higher speeds only if this acceleration is above zero. If an adjusted maximum speed is exceeded, this operation of the prognostic circuit is interrupted.