METHOD AND CONTROL DEVICE FOR OPERATING A HYBRID DRIVE
First Claim
1. A method for operating a hybrid drive arrangement withan internal combustion engine having a drive shaft, the internal combustion engine comprising a throttle valve;
- an electric drive having a drive shaft;
a coupling arranged between the internal combustion engine and the electric drive and controllable on demand in such a way that the drive shaft of the internal combustion engine and the drive shaft of the electric drive are coupled to one another in a torque-engaged manner;
the method comprising;
detecting whether there is a requirement to interconnect the drive shaft of the internal combustion engine and the drive shaft of the electric drive;
if there is a requirement to interconnect;
pilot-controlling the speed of the internal combustion engine to a target speed level in such a way that the drive shafts of the internal combustion engine and of the electric drive run at least approximately synchronously, the speed of the internal combustion engine being pilot-controlled by a default of a setpoint for an opening angle of the throttle valve;
subsequent regulation of the speed of the internal combustion engine in such a way that the drive shafts of the internal combustion engine and of the electric drive run substantially synchronously;
subsequent coupling of the drive shafts of the internal combustion engine and of the electric drive via the coupling.
2 Assignments
0 Petitions
Accused Products
Abstract
In a control unit and a method for operating a hybrid drive arrangement (1) with an internal combustion engine (5), an electric drive (3) and a coupling device (20) that is arranged therebetween, when the internal combustion engine (5) and the electric drive (3) should be coupled together, the rotational speed of the internal combustion engine (5) is pilot-controlled to a target rotational speed level (N2) such that the drive shafts (4, 6) of the internal combustion engine (5) and the electric drive (3) run at least approximately synchronously. The pilot-control takes place by the throttle valve. Subsequently, the rotational speed of the internal combustion engine (5) is controlled in such a manner that the drive shafts (4, 6) of the internal combustion engine (5) and the electric drive (3) run essentially synchronously. Then, the drive shafts (4, 6) are joined by the coupling device (20).
15 Citations
20 Claims
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1. A method for operating a hybrid drive arrangement with
an internal combustion engine having a drive shaft, the internal combustion engine comprising a throttle valve; -
an electric drive having a drive shaft; a coupling arranged between the internal combustion engine and the electric drive and controllable on demand in such a way that the drive shaft of the internal combustion engine and the drive shaft of the electric drive are coupled to one another in a torque-engaged manner; the method comprising; detecting whether there is a requirement to interconnect the drive shaft of the internal combustion engine and the drive shaft of the electric drive; if there is a requirement to interconnect; pilot-controlling the speed of the internal combustion engine to a target speed level in such a way that the drive shafts of the internal combustion engine and of the electric drive run at least approximately synchronously, the speed of the internal combustion engine being pilot-controlled by a default of a setpoint for an opening angle of the throttle valve; subsequent regulation of the speed of the internal combustion engine in such a way that the drive shafts of the internal combustion engine and of the electric drive run substantially synchronously; subsequent coupling of the drive shafts of the internal combustion engine and of the electric drive via the coupling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15)
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16. A system for operating a hybrid drive arrangement comprising:
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an internal combustion engine having a drive shaft, the internal combustion engine comprising a throttle valve; an electric drive having a drive shaft; a coupling arranged between the internal combustion engine and the electric drive and controllable on demand in such a way that the drive shaft of the internal combustion engine and the drive shaft of the electric drive are coupled to one another in a torque-engaged manner; a control unit operable to detect whether there is a requirement to interconnect the drive shaft of the internal combustion engine and the drive shaft of the electric drive, and if so, said control unit being further operable; to pilot-control the speed of the internal combustion engine to a target speed level in such a way that the drive shafts of the internal combustion engine and of the electric drive run at least approximately synchronously, the speed of the internal combustion engine being pilot-controlled by a default of a setpoint for an opening angle of the throttle valve; to subsequently regulate the speed of the internal combustion engine in such a way that the drive shafts of the internal combustion engine and of the electric drive run substantially synchronously; and to subsequently couple the drive shafts of the internal combustion engine and of the electric drive via the coupling. - View Dependent Claims (17, 18, 19, 20)
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Specification