control unit for an automatic gearbox of a motor vehicle brennkraftmaschine coupled

摘要

P & this control device is improved in order to reduce the emissions of pollutants, when the associated engine is cold. / p & & p & to this end, the conduit 9 for supplying the depression acting on the valve of the correction of the load comprises a bypass circuit 10, 11, 12 to the atmosphere which is controlled by a thermostatic valve 11, which allows the connection to the atmosphere when the engine is cold. The information supplied to the valve of the correction as a function of the engine load is modified, so as to correspond to that which would normally a load higher. The ratio change is thus, all other things being equal, for a speed of rotation of the motor, as long as the latter has not reached a certain temperature. / p