| 摘要 |
System for controlling a motor vehicle automatic transmission, comprising at least one modulation solenoid valve positioned in a hydraulic circuit. The system comprises a means (19) for determining extreme climate conditions, able to compare a temperature measurement near the modulation solenoid valves to a threshold, a means (20) for determining the imminence of a start up of the power train of the vehicle based on at least one signal from a sensor, connected as input to a means (21) for controlling the modulation solenoid valves, able to emit a control signal modulated by a cyclic ratio, comprising an inrush current followed by a holding current, and a deactivation means (22) able to deactivate the means (21) for controlling the activation of the modulation solenoid valves when the power train is started up. |
