摘要:
A clutch system for producing and interrupting a force flow between the engine and transmission of a motor vehicle, with a clutch, which is disengaged unless actuated, and one or more valves, which regulate the flow of pressure medium and which are electrically actuated by a control and regulation unit. If there is electrical failure while driving and when a gear is engaged or when the vehicle is stationary, the engine is running and a transmission gear is engaged, unintended clutch engagement is prevented. The valves are designed such that if there is a failure of the voltage supply and consequently also of the actuation of the valves by the electronic control and regulation system, the operating condition of the clutch existing at the time of failure, namely the disengaged or engaged operating condition, remains as it is.
摘要:
A method is proposed for controlling a through-connection clutch of a vehicle, in which an interlocking portion of the clutch is opened when the drive-train is virtually free from torque, a shifting operation is then carried out, and after the shifting operation the clutch is closed again. According to the invention, the torque transmitted by the interlocked connection in the clutch is influenced by controlling the motor in order to produce a torque-free condition at the interlocked connection in the clutch, in such manner that the interlocked connection is pre-stressed before the torque-free condition has been reached and separated immediately only when the torque-free condition is reached.
摘要:
A through-connection clutch, for transferring torque between a motor and transmission of a vehicle, which has a friction clutch and a form-locking clutch. The form-locking clutch is disposed radially within the friction clutch, and the clutches can be actuated independently of each other. To minimize the required installation space, the through-connection clutch can be activated flexibly, but is still inexpensive to produce and ensures low-wear yet safe and comfortable torque transfer in a drive train of a vehicle. A pressure plate of the friction clutch and a form-locking element of the form-locking clutch are concentric, rotationally fixed together, and movable toward one another, and can be actuated via an actuation unit, which is rotationally decoupled from the pressure plate and the form-locking element. Depending on the operating situation, the friction clutch and/or the form-locking clutch is selectively activated one or more times.
摘要:
A method for controlling or regulating torque of a startup clutch of a motor vehicle. The method reliably prevents unintentional rolling of the motor vehicle down a grade and enables a comfortable maneuvering mode, which requires no separate actuation of an operating element for activating the maneuvering mode and enables a precisely dosed speed definition, while on a grade. Adjustment of the speed is substantially independent from the surface grade and the load of the motor vehicle. A startup and maneuvering control device acquires driving resistance data, determines a driving resistance value and, with that, determines a base value of the clutch torque of the automated startup clutch, with the base value being adjusted depending upon the accelerator pedal.
摘要:
A method is proposed for controlling a through-connection clutch of a vehicle, in which an interlocking portion of the clutch is opened when the drive-train is virtually free from torque, a shifting operation is then carried out, and after the shifting operation the clutch is closed again. According to the invention, the torque transmitted by the interlocked connection in the clutch is influenced by controlling the motor in order to produce a torque-free condition at the interlocked connection in the clutch, in such manner that the interlocked connection is pre-stressed before the torque-free condition has been reached and separated immediately only when the torque-free condition is reached.
摘要:
A clutch system for producing and interrupting a force flow between the engine and transmission of a motor vehicle, with a clutch, which is disengaged unless actuated, and one or more valves, which regulate the flow of pressure medium and which are electrically actuated by a control and regulation unit. If there is electrical failure while driving and when a gear is engaged or when the vehicle is stationary, the engine is running and a transmission gear is engaged, unintended clutch engagement is prevented. The valves are designed such that if there is a failure of the voltage supply and consequently also of the actuation of the valves by the electronic control and regulation system, the operating condition of the clutch existing at the time of failure, namely the disengaged or engaged operating condition, remains as it is.
摘要:
A through-connection clutch, for transferring torque between a motor and transmission of a vehicle, which has a friction clutch and a form-locking clutch. The form-locking clutch is disposed radially within the friction clutch, and the clutches can be actuated independently of each other. To minimize the required installation space, the through-connection clutch can be activated flexibly, but is still inexpensive to produce and ensures low-wear yet safe and comfortable torque transfer in a drive train of a vehicle. A pressure plate of the friction clutch and a form-locking element of the form-locking clutch are concentric, rotationally fixed together, and movable toward one another, and can be actuated via an actuation unit, which is rotationally decoupled from the pressure plate and the form-locking element. Depending on the operating situation, the friction clutch and/or the form-locking clutch is selectively activated one or more times.
摘要:
A method for controlling or regulating a clutch torque of a startup clutch of a motor vehicle, which first of all reliably prevents an unintentional rolling of the motor vehicle down a gradient and second enables a comfortable maneuvering mode, which requires no separate actuation of an operating element for activating a maneuvering mode, and also enables a precisely dosed speed definition during maneuvering on gradients, wherein the adjusted speed is substantially independent from the gradient of the ground and the motor vehicle load. A startup and maneuvering control device is provided according to the invention, which reads in driving resistance data, determines therefrom a driving resistance value, and determines a base value of the clutch torque of the automated startup clutch in dependence thereof, which is adjusted in dependence upon the accelerator pedal.
摘要:
A device for controlling a fluid-actuated, double-action operating cylinder (2) having two cylinder chambers (6, 8) separated from one another by a piston (4). Each cylinder chamber (6, 8) communicates with a respective valve (12, 14) for controlling the flow of fluid in and out of the cylinder chamber (6, 8) and a pressure sensor (40) for detecting the fluid supply pressure. A control unit (20) is connected to the switching valves (12, 14) and the pressure sensor (40). To determine the actual control force of the operating cylinder (2), the pressure sensor (40) is arranged between the cylinder chambers (6, 8) and the control unit (20). The output from the pressure sensor (40) can be processed in the control unit (20) and used for actuating a pressure regulation valve (22) arranged in the pressure line (32).
摘要:
A method of determining and reducing vibrations caused by a clutch (3) in a drivetrain (1) of a motor vehicle, in which the disturbing vibrations are detected by a control and regulating unit aided by suitable sensors and, if predetermined limit values are exceeded, at least one device is actuated by the control and regulating unit in such manner that the disturbing vibrations are completely eliminated or at least reduced in amplitude. At least one torque sensor (8, 9, 10) is used to detect the occurrence of vibrations in the drivetrain (1) and the torque sensor (8, 9, 10) is used to determine vibration amplitude.