GB190928082A - Improvements in and relating to Vehicle Propulsion and Control. - Google Patents

Abstract

28,082. Pieper, H. Dec. 1, 1908, [Convention date]. Regulating and control - transmitting apparatus.-Relates to vehicles propelled by motor units consisting of a heat engine permanently coupled to a dynamo-electric machine in circuit with a buffer battery, and comprises means for controlling electrically the ignition circuit and the reversing - device of the engine, the armature and field circuits of the dynamo-electric machine, and a clutch and brake in the transmission gear, such control being effected from either end of the vehicle, and from any one of a train of similar vehicles. The vehicle frame, Fig. 2, carries an engine 2 and dynamo 3 coupled to a battery 16. The wheels are driven through a magnetic clutch 7 adapted to attract a plate 15, and the vehicle is braked by a fixed electro-magnet 14. The various functions enumerated above may be controlled by separate switches or the whole may be arranged on one control barrel, as shown in Fig. 7. If the barrel is turned from its central position, the armature circuit is completed, and the engine 2 is started by the motor 3. The ignition circuit being also closed, the heat engine runs under its own fuel. In the next positions of the barrel, the brake 14 is gradually taken off, and the clutch 7 energized so as to start the vehicle. The speed is increased by putting resistances 56 in the field circuit. When the barrel is moved in the opposite direction from central position, a magnet 29 is energized, and attracts an armature on a lever 23 operating a clutch on the valve shaft 68. This clutch is combined with a reversing bevel-gear, Fig. 5, in such a way that when the clutch is thrown over, the valves are so operated as to reverse the engine's direction of rotation. Further movement of the control barrel effects the same operations as before, the vehicle being driven backwards. A similar control barrel is arranged at the opposite end of the vehicle, the pairs of brushes being coupled as shown. When large currents are used, the control circuits operate relay magnets which effect the opening and closing of the armature circuit, and resistances are interposed and automatically short - circuited as the speed rises. When two motor groups are arranged on the same vehicle, the controller is modified to permit the two dynamos to work either in series or in parallel. In the case of a train of vehicles, a series of eight control wires extend from end to end of the train and are coupled to the brushes of a controller at each end of each vehicle, the wires being also in circuit respectively on each vehicle with the forward and reverse main solenoids, the motor field, the clutch, the brake, the magnets for reversing the heat motor, and the ignition device.