Control apparatus and method for controlling drive train elements
AssigneeLuK Lamellen und Kupplungsbau Beteiligungs KG
InventorsMichael Reuschel, Anton Fritzer
Life of this patent
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Abstract
A method and apparatus for controlling a motor vehicle drive train component. The motor vehicle includes an engine control device and a clutch control device. The method and apparatus control the clutch control device and the engine control device so that they do not simultaneously control or regulate the same operating parameter of the drive train.
Claims46
A method for controlling at least one drive train component of a motor vehicle which has a drive apparatus as well as a clutch apparatus arranged In the drive train, an engine control device, and a clutch control device, said method comprising the steps of:
- a) controlling the position of at least a first predetermined component of the drive apparatus by the engine control device, whereby at least a first operating parameter of the drive train is controlled by the engine control device;
- b) controlling the position of at least a second predetermined component of the clutch apparatus by the clutch control device, whereby at least a second operating parameter of the drive train is controlled by the clutch control device:
- c) transmitting predetermined signals between the engine control, device and the clutch control device, which affect the control activities of at least one of those control devices;
- and
- d) maintaining below a predetermined difference limit a difference between an actual engine rotational speed gradient and a predetermined output side drive train rotational speed gradient by regulating the engine rotational speed gradient at a transition between a startup phase and a drive phase of thevehicle.
A method for controlling at least one drive train component of motor vehicle which has a drive apparatus as well as a clutch apparatus arranged in the drive train, an engine control device, and a clutch control device, said method comprising the steps of:
- a) controlling the position of at least a first predetermined component of the drive apparatus by the engine control device, whereby at least a first operating parameter of the drive train is controlled by the engine control device;
- b) controlling the position of at least a second predetermined component of the clutch apparatus by the clutch control device, whereby at least a second operating parameter of the drive train is controlled by the clutch control device;
- c) providing by at least one of the control devices at least a part of its control characteristic to the other control device;
- and
- d) maintaining below a predetermined difference limit a difference between an actual engine rotational speed gradient and a predetermined output side drive train rotational speed gradient by regulating the engine rotational speed gradient at a transition between a startup phase and a drive phase of the vehicle.
A method for controlling at least one drive train component of a motor vehicle which has a drive apparatus as well as a clutch apparatus arranged in the drive train, an engine control device, and a clutch control device, said method comprising the steps of:
- a) controlling the position of at least a first predetermined component of the drive apparatus by the engine control device, whereby at least a first operating parameter of the drive train is controlled by the engine control device;
- b) controlling the position of at learnt a second predetermined component of the clutch apparatus by the clutch control device, whereby at least a second operating parameter of the drive train is controlled by the clutch control device;
- c) conducting by one control device of predetermined control activities as a function of control activities of the other control device;
- and
- d) maintaining below a predetermined difference limit a difference between an actual engine rotational speed gradient and a predetermined output side drive train rotational speed gradient by regulating the engine rotational speed gradient at a transition between a startup phas and a drive phase of the vehicle.
A method for controlling at least one drive train component of a motor vehicle which has a drive apparatus as well as a clutch apparatus arranged in the drive train, an engine control device, and a clutch control device, said method comprising the steps of:
- a) controlling the position of at least a first predetermined component of the drive apparatus by the engine control device, whereby at least a first operating parameter of the drive train is controlled by the engine control device;
- b) controlling the position of at least a second predetermined component of the clutch apparatus by the clutch control device, whereby at least a second operating parameter of the drive train is controlled by the clutch control device;
- c) coordinating control activities of the control devices under predetermined conditions by means of a priority characteristic;
- and
- d) maintaining below a predetermined difference limit a difference between an actual engine rotational speed gradient and a predetermined output side drive train rotational speed gradient by regulating the engine rotational speed gradient at a transition between a startup phase and a drive phase of the vehicle.
A method for controlling at least one drive train component of a motor vehicle which has a drive apparatus as well as a clutch apparatus arranged in the drive train, an engine control device, and a clutch control device, said method comprising the steps of:
- a) controlling the position of at least a first predetermined component of the drive apparatus by the engine control device, whereby at least a first operating parameter of the drive train is controlled by the engine control device;
- b) controlling the position of at least a second predetermined component of the clutch apparatus by the clutch control device, whereby at least a second operating parameter of the drive train is controlled by the clutch control device;
- c) indicating by one of the control devices under predetermined conditions by means of a signal to the other control device that the one control device is regulating a predetermined operating parameter of the drive train;
- and
- d) maintaining below a predetermined difference limit a difference between an actual engine rotational speed gradient and a predetermined output side drive train rotational speed gradient by regulating the engine rotational speed gradient at a transition between a startup phase and a drive phase of the vehicle.
A method for controlling at least one drive train component of a motor vehicle, said method comprising the steps of:
- a) controlling predetermined operating parameters of an engine of the motor vehicle in accordance with a start-up characteristic during a starting phase of the motor vehicle;
- b) controlling predetermined operating parameters of the engine in accordance with a driving characteristic during a driving phase of the motor vehicle;
- c) regulating one of the engine rotational speed and the engine rotational speed gradient during a start-up phase of the motor vehicle;
- and
- d) maintaining below a predetermined difference limit a difference between an actual engine rotational speed gradient and a predetermined output side drive train rotational speed gradient by regulating the engine rotational speed gradient at a transition between the starting phase and the driving phase of the vehicle.
A method for controlling at least one drive train component of a motor vehicle, said method comprising the steps of:
- a) controlling predetermined operating parameters of an engine of the motor vehicle in accordance with a start-up characteristic during a starting phase of the motor vehicle;
- b) controlling predetermined operating parameters of the engine in accordance with a driving characteristic during a driving phase of the motor vehicle;
- c) specifying a predetermined rotational speed under load to be controlled when the engine rotational speed and a transmission rotational speed are substantially identical at the end of the of the starting phase;
- d) maintaining a rotational speed differential between the engine rotational speed under load and the engine rotational speed at the end of the starting phase equal to the transmission rotational speed and greeter than zero;
- and
- e) maintaining below a predetermined difference limit a difference between an actual engine rotational speed gradient and a predetermined output side drive train rotational speed gradient by regulating the engine rotational speed gradient at a transition between the starting phase and the driving phase of the vehicle.
A method for controlling at least one drive train component of a motor vehicle, said method comprising the steps of:
- a) controlling predetermined operating parameters of an engine of the motor vehicle in accordance with a start-up characteristic during a starting phase of the motor vehicle;
- b) controlling predetermined operating parameters of the engine in accordance with a driving characteristic during a driving phase of the motor vehicle;
- c) specifying a predetermined rotational speed under load to be controlled when the engine rotational speed and a transmission rotational speed are substantially identical at the end of the of the starting phase;
- d) maintaining one of the engine rotational speed and the transmission rotational speed so that it does not substantially exceed the specified rotational speed under load until the engine rotational speed and the transmission rotational speed jointly reach the specified speed under load;
- and
- e) maintaining below a predetermined difference limit difference between an actual engine rotations speed gradient and a predetermined output side drive train rotational speed gradient by regulating the engine rotational speed gradient at a transiton between the starting phase and the driving phase of the vehicle.
Dependencies are inferred from the claim text.