Electric starting device for an internal combustion engine
View Patent ↗The present invention relates to an electric starting device ( 1 ) for an internal combustion engine ( 5 ), which electric starting device ( 1 ) comprises an electric starter ( 4 ) and a starter-generator ( 2 ) which is assigned to a traction mechanism drive ( 3 ). The starting of the internal combustion engine ( 5 ) may take place by means of the electric starter ( 4 ) or the starter-generator ( 2 ) in each case individually or in a combination of the two units. Also provided is a start-stop device of the internal combustion engine ( 5 ), in which a controlled supply of power to the starter-generator ( 2 ) is provided in synchronization with a start by means of the electric starter ( 4 ).
1. An electric starting device for an internal combustion engine, comprising:
a starter-generator which is assigned to a traction mechanism drive and is designed for starting according to demand in a starting phase and for generating energy after the internal combustion engine has been started, the starter-generator being arranged at a first end of a first side of the internal combustion engine and connected to the internal combustion engine by a first means;
an electric starter which can be operated alone or together with the starter-generator, the electric starter being arranged at a second end of the first side of the internal combustion engine, opposite the first end, and connected to the internal combustion engine by a second means;
a further means for providing a controlled supply of power to the starter-generator in synchronization with an actuation of the electric starter for a cold start,
wherein the starting device is a start-stop device of the internal combustion engine.
2. The starting device according to claim 1 , wherein the starter-generator is supplied with power in a regulated fashion.
3. The starting device according to claim 1 , wherein, in the starting phase, the power supply to the starter-generator is triggered by means of a manual actuation.
4. The starting device according to claim 1 , wherein the electric starter interacts by means of a pinion with a toothed ring of the internal combustion engine.
5. The starting device according to claim 1 , wherein the traction mechanism drive is a belt drive.
6. The starting device according to claim 1 , wherein two belt strands of the starter-generator are each assigned separate, an independently acting tensioning system.
7. The starting device according to claim 6 , wherein, in the starting phase, the tensioning system of one of the belt strands, which acts as a tension strand, can be locked.
8. The starting device according to claim 6 , wherein at least one tensioning system is a hydraulically acting tensioning system.
9. The starting device according to claim 1 , wherein the starter-generator is connected to the traction mechanism drive by means of an overrunning clutch.
10. The starting device according to claim 9 , wherein the overrunning clutch, which is lockable, is provided between the starter-generator and the traction mechanism drive.
11. The starting device according to claim 10 , wherein the overrunning clutch is integrated in a pulley which is assigned to the starter-generator.