REGELSCHALTUNG FÜR BATTERIEBETRIEBENE ELEKTROFAHRZEUGE

A control circuit having a controller provided with a microprocessor (7) is provided for battery-driven electric vehicles which have a battery (1) which can be charged via a vehicle-mounted device with rectifier circuit (2) which can be connected to a supply network (3) and have at least one electric motor (16), the said controller having inputs, which are connected to sensors (10, 11, 13, 15) for operating parameters of the vehicle, of the battery (1) and of the motor (16), and control inputs (9, 24, 25) for inputting travel instructions, in particular for the direction of travel, the speed of travel and braking, and controlling the current flowing through at least one motor winding (37a) in accordance with a control program which is influenced by the signals present at the inputs and via contactless electronic control switches with power inputs and power outputs and control inputs, in particular via transistors (38 - 41) which are driven by the said controller and are bypassed by diodes (42 - 45) which are connected in opposition. In order to simplify the overall design, the at least one motor winding (37a) can be switched together with the associated electronic control switches (42, 43) via a change-over switch (6) as a control circuit into a charging circuit between the rectifier circuit (2) and battery (1), which charging circuit is controlled by the microprocessor (7) according to a predetermined control programme.