Method for determining the biting point of a hybrid disconnect clutch of a hybrid vehicle
AssigneeSchaeffler Technologies AG & Co. KG
InventorTimo Enders
Life of this patent
Estimating the term…
Abstract
A method determines the biting point of a hybrid disconnect clutch of a hybrid vehicle. The hybrid disconnect clutch disconnects or connects an internal combustion engine and a first electric motor, which is arranged on the output side. A second electric motor, which is arranged on the internal combustion engine side and is rigidly connected to the internal combustion engine, is operated at a constant rotational speed during electric travel by means of the first electric motor. The hybrid disconnect clutch is moved from the open state toward the closed state and the load on the second electric motor is monitored. When the load on the second electric motor reaches a predefined load threshold value, it is determined that the biting point has been reached.
Claims12
A method for determining a biting point of a hybrid disconnect clutch of a hybrid vehicle, the hybrid disconnect clutch selectively coupling an internal combustion engine and a first electric motor, the first electric motor arranged on an output side, and a torque output by the internal combustion engine or the first electric motor is transferred to drive wheels of the hybrid vehicle, the method comprising moving the hybrid disconnect clutch from an open state into a closed state in order to determine the biting point, wherein a second electric motor, which is arranged on an internal combustion engine side and is rigidly connected to the internal combustion engine, is operated at a constant rotational speed during electric travel by means of the first electric motor, a load on the second electric motor being monitored while the hybrid disconnect clutch is moved from the open state to the closed state, it being detected that the biting point has been reached when the load on the second electric motor has reached a predefined load threshold value.
A method for determining a biting point of a disconnect clutch of a hybrid vehicle, the method comprising:
- propelling the hybrid vehicle while the disconnect clutch is open using a first electric motor on an output side of the disconnect clutch;
- regulating a speed of a second electric motor on an input side of the disconnect clutch by varying a torque of the second electric motor;
- gradually closing the disconnect clutch while monitoring the torque on the second electric motor;
- and
- concluding that the biting point has been reached when the torque exceeds a predefined load threshold value.
Dependencies are inferred from the claim text.