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US 2022/0178408 A1Published application
Controlling a clutch by an actuator
AssigneeGKN Automotive AG
InventorsMarkus Weller, Marcel Richter
Life of this patent
Estimating the term…
Abstract
Controlling a clutch by means of an actuator, wherein at least one first shaft can be torque-transmittingly connected to a second shaft by means of the clutch, the clutch in one of at least three states, where in an disengaged first state, a torque cannot be transmitted, in a second state, a torque can be transmitted such that the speeds of the first shaft and the second shaft are synchronized in the second state, and in an engaged third state, a required torque can be transmitted; wherein, in various states and in an operating mode associated with the particular state, the actuator is adjusted at a different speed in order to adjust the clutch.
Claims11
-7. (canceled)
A method for controlling a clutch having an actuator,
- wherein via the clutch at least one first shaft is connectable to a second shaft in a torque-transmitting manner,
- wherein the clutch is in one of at least three states,
- wherein in a disengaged first state, no torque can be transmitted,
- wherein in a second state a torque can be transmitted, such that a speed of the first shaft and a speed of the second shaft are synchronized in the second state, and
- wherein in an engaged third state, a required torque can be transmitted,
- the method comprising:
- a) detecting a required change in a current state of the clutch;
- b) operating the actuator in an operating mode associated with the current state for adjustment of the clutch, wherein the clutch is adjusted from the current state to a next state at a speed defined by the operating mode;
- and, upon a change from the current state to the next state:
- c) operating the actuator in a different operating mode associated with the next state for adjustment of the clutch, wherein the clutch is adjusted in the next state at a different speed;
- wherein the current state of the clutch is one of the first state, the second state, or the third state, and the next state of the clutch is one of the first state, the second state, or the third state, and different from the current state of the clutch;
- wherein the operating mode associated with the current state, and the different operating mode associated with the next state for adjustment of the clutch, are each one of a first, second, or third operating mode;
- wherein a first speed of the clutch, defined in the first state by the first operating mode, is higher than a second speed of the clutch defined by the second operating mode in the second state;
- and
- wherein a third speed of the clutch, defined in the third state by the third operating mode, is higher than the second speed and is at least equal to the first speed.
12 more elements
A system for a motor vehicle, comprising:
- a drive unit for driving the motor vehicle;
- a first shaft driven by the drive unit;
- a second shaft driving at least one wheel;
- a clutch connecting the shafts in a switchable manner;
- and
- an actuator for actuating the clutch;
- wherein the clutch is in one of at least three states,
- wherein in a disengaged first state, no torque can be transmitted,
- wherein in a second state a torque can be transmitted, such that a speed of the first shaft and a speed of the second shaft are synchronized in the second state, and
- wherein in an engaged third state, a required torque can be transmitted;
- and
- wherein the actuator is operable by a control device that is configured for:
- a) detecting a required change in a current state of the clutch;
- b) operating the actuator in an operating mode associated with the current state for adjustment of the clutch, wherein the clutch is adjusted from the current state to a next state at a speed defined by the operating mode;
- and, upon a change from the current state to the next state:
- c) operating the actuator in a different operating mode associated with the next state for adjustment of the clutch, wherein the clutch is adjusted in the next state at a different speed;
- wherein the current state of the clutch is one of the first state, the second state, or the third state, and the next state of the clutch is one of the first state, the second state, or the third state, and different from the current state of the clutch;
- wherein the operating mode associated with the current state, and the different operating mode associated with the next state for adjustment of the clutch, are each one of a first, second, or third operating mode;
- wherein a first speed of the clutch, defined in the first state by the first operating mode, is higher than a second speed of the clutch defined by the second operating mode in the second state;
- and
- wherein a third speed of the clutch, defined in the third state by the third operating mode, is higher than the second speed and is at least equal to the first speed.
18 more elements
Dependencies are inferred from the claim text.