The invention relates to a drive system, especially for motor vehicles, with a first power source (10), especially an internal combustion engine, and a second power source (20), especially an electric motor. The power sources acts upon a gearbox (14) that is provided with a plurality of gearwheel se
The invention relates to a drive system, especially for motor vehicles, with a first power source (10), especially an internal combustion engine, and a second power source (20), especially an electric motor. The power sources acts upon a gearbox (14) that is provided with a plurality of gearwheel sets which modulate. The first power source is linked with the gearbox via a clutch (L1) and the second power source is linked with the gearbox directly. The aim of the invention is to provide a construction that is favorable both in terms of design and functionality. To this end, the first power source acts upon a shaft (12) that carries the one gearwheels of the gearwheel sets and the second power source acts upon a second shaft (16) that carries the other gearwheels of the gearwheel sets. A separate output shaft (22) can be optionally coupled to the first (12) or the second (16) shaft.
대표청구항▼
1. A drive system, for motor vehicles comprising a first power source, an internal combustion engine, and a second power source, an electric motor, which act on a gearbox having a plurality of speed change gear sets as speed selector, the first power source connected by way of a clutch to a first sh
1. A drive system, for motor vehicles comprising a first power source, an internal combustion engine, and a second power source, an electric motor, which act on a gearbox having a plurality of speed change gear sets as speed selector, the first power source connected by way of a clutch to a first shaft of the gearbox and the second power source directly connected to a second shaft of the gearbox, wherein a separate driven shaft is provided which is coupled alternatively to the first shaft or the second shaft of the gearbox when the speed change gear sets of the gearbox engage to transmit torque from the second shaft to the first shaft when the second power source powers the vehicle or from the first shaft to the second shaft when the first power source powers the vehicle, respectively. 2. A drive system as specified in claim 1, wherein the driven shaft may be drive connected to the first shaft or the second shaft by way of connectible gears. 3. A drive system as specified in claim 2, wherein at least one clutch for meshing the connectible gears is mounted on the driven shaft. 4. A drive system as specified in claim 3, wherein the at least one clutch is a friction clutch. 5. A drive system as specified in claim 1, wherein the speed change gear sets may be shifted by positive-locking clutches. 6. A drive system as specified claim 2, wherein transmission ratios of the speed change gear sets and of the connectible gears are designed so that, in an event of actuation by way of the second power source, a starting speed and a lower speed range are covered, and in an event of actuation by the first power source a higher speed range up to an overdrive operation is covered. 7. A drive system as specified in claim 6, wherein a gear wheel of the connectible gears meshes directly with a gear wheel of one of the speed change gear sets rigidly connected to the second shaft. 8. A process for operation of a motor vehicle with a drive system as specified in claim 1, characterized in that, in the event of operation with the first power source, during a change from one speed change gear set to another speed change gear set, the second power source is switched to provision of power to eliminate interruption of tractive power. 9. A process as specified in claim 8, wherein the electric motor is activated during the gear change in order to deliver increased power. 10. A drive system as specified in claim 1, wherein the driven shaft is connected alternatively to the second shaft by way of connectible gears and to the first shaft by way of a chain. 11. A drive system as specified in claim 1, wherein each of said first and second shafts has mounted thereon a drive gear that engages a respective driven shaft gear engagable to the driven shaft via a synchronous clutch. 12. A drive system as specified in claim 1, wherein each speed change gear set comprises a first shaft gear engagable on the first shaft via a synchronous clutch and a second shaft gear mounted on the second shaft. 13. A drive system as specified in claim 12, wherein gear ratios for each of the plurality of speed change gear sets vary such that each speed change gear set provides a varying transfer of rotational speed between the first and second shafts.
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이 특허에 인용된 특허 (8)
Kawakatsu Shiro (Suita JPX), Control apparatus for engine/electric hybrid vehicle.
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