Locking device, electric motor drive unit, and vehicle
AssigneeSchaeffler Technologies AG & Co. KG
InventorsChristof Heeger, Karl Martin Fritsch, Jens Henrich, Philip Kieper
Life of this patent
Estimating the term…
Abstract
A locking device for an electric motor drive unit having a locking mechanism for locking a lockable shaft of the electric motor drive unit and an electric drive for actuating the locking mechanism received by a housing of the locking device together with the locking mechanism. The housing receives a position sensor assembly that comprises a signal transmitter and a sensor component, which interacts with the signal transmitter and detects the position of a rotor of an electric motor to commutate the electric motor.
Claims8
A locking device for an electric motor drive unit, comprising:
- a locking device housing;
- a locking mechanism received by the locking device housing and configured to lock a lockable shaft of the electric motor drive unit;
- an electric drive received by the locking device housing and configured to actuate the locking mechanism;
- a multifunctional shaft adapter, which is substantially made of a plastic and received by the locking device housing and configured to connect to the lockable shaft;
- wherein the plastic of the shaft adapter is connected in an integrally bonded manner to a form-fit element for connection to the lockable shaft;
- and
- a position sensor assembly that detects a position of a rotor of an electric motor of the electric motor drive unit, the rotor connected to the lockable shaft to commutate the electric motor, the position sensor assembly received by the locking device housing and comprises:
- a signal transmitter;
- and
- a sensor component that is received in a fixed position by the plastic of the shaft adapter and at least partly made of metal, which interacts with the signal transmitter.
An electric motor drive unit, for driving a vehicle comprising:
- a locking device comprising:
- a locking device housing;
- a locking mechanism received by the locking device housing and configured to lock a lockable shaft of the electric motor drive unit;
- an electric drive received by the locking device housing and configured to actuate the locking mechanism;
- a multifunctional shaft adapter, which is substantially made of a plastic and received by the locking device housing and configured to connect to the lockable shaft;
- wherein the plastic of the shaft adapter is connected in an integrally bonded manner to a form-fit element for connection to the lockable shaft;
- and
- a position sensor assembly that detects a position of a rotor of an electric motor of the electric motor drive unit, the rotor connected to the lockable shaft to commutate the electric motor, the position sensor assembly received by the locking device housing and comprises:
- a signal transmitter;
- and
- a sensor component that is received in a fixed position by the plastic of the shaft adapter and at least partly made of metal, which interacts with the signal transmitter;
- and
- a housing of the electric motor of the electric motor drive unit to which the locking device is attached.
Dependencies are inferred from the claim text.