Clutch Assembly for a Motor Vehicle Drivetrain, and Motor Vehicle Drivetrain

A clutch assembly for a motor vehicle drivetrain for rotationally conjointly coupling coupling elements, comprising:

• a clutch unit;
• a brake unit;
• at least one permanent magnet arranged between the clutch unit and the brake unit;
• a holding plate assigned to the brake unit;
• and
• first and second electrically energizable coils,
• wherein
• the at least one permanent magnet is configured to shift the clutch unit into a coupling state in which the coupling elements are rotationally conjointly coupled to one another, the at least one permanent magnet being movable from a first position in which the coupling elements are decoupled into a second position in which the coupling elements are coupled by the clutch unit,
• the first and second electrically energizable coils are configured to move the permanent magnet from the first position into the second position or from the second position into the first position, and
• the holding plate is composed at least partially of a ferromagnetic material and at least partially of a non-ferromagnetic material, such that a magnetic flux generated by the permanent magnet in the brake unit is interrupted.

A clutch assembly for a motor vehicle drivetrain for rotationally conjointly coupling coupling elements along a rotation axis, comprising:

• a clutch unit;
• a brake unit;
• at least one permanent magnet arranged between the clutch unit and the brake unit;
• a holding plate assigned to the brake unit;
• and
• first and second electrically energizable coils,
• wherein
• at least one permanent magnet is configured to shift the clutch unit into a coupling state in which the coupling elements are rotationally conjointly coupled to one another, the at least one permanent magnet being movable from a first position in which the coupling elements are decoupled into a second position in which the coupling elements are coupled by the clutch unit,
• the first and second electrically energizable coils are configured to move the permanent magnet from the first position into the second position or from the second position into the first position, and
• the holding plate has a step-free form at an inner radius of the holding plate.

A motor vehicle drivetrain, comprising:

• at least one clutch assembly;
• torque output;
• and
• a plurality of wheels,
• wherein
• the at least one clutch assembly is arranged to couple together coupling elements between at least one torque source and the torque output such that torque is transferable from the at least one torque source via the torque output to at least one of the plurality of wheels, the at least one clutch assembly includes
• a clutch unit;
• a brake unit;
• at least one permanent magnet arranged between the clutch unit and the brake unit;
• a holding plate assigned to the brake unit;
• and
• first and second electrically energizable coils,
• the at least one permanent magnet is configured to shift the clutch unit into a coupling state in which the coupling elements are rotationally conjointly coupled to one another, the at least one permanent magnet being movable from a first position in which the coupling elements are decoupled into a second position in which the coupling elements are coupled by the clutch unit,
• the first and second electrically energizable coils are configured to move the permanent magnet from the first position into the second position or from the second position into the first position.