Patents by Inventor Michael Reuschel
Michael Reuschel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20020132697Abstract: A method for controlling a continuously variable transmission that includes a multi-stage torque sensor. At least on e switchover point from one stage to another stage is determined based upon a given input load and is correlated with transmission operating parameters, such as transmission ratio, hydraulic pressure within a chamber in the torque sensor, and transmission output torque.Type: ApplicationFiled: February 28, 2002Publication date: September 19, 2002Inventors: Michael Reuschel, Anton Fritzer
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Patent number: 6422367Abstract: The present invention presents a method for operating a motor vehicle which has at least one clutch device. The method includes determining at least one part of a dependence of a path of at least one clutch characteristic on at least one pressure value. The pressure value relates to a pressure of a hydraulic fluid at a predetermined site. According to one embodiment of the present invention, the hydraulic pressure is detected in an area of a torque sensor which produces the hydraulic pressure dependent on a size (magnitude) of an engine torque.Type: GrantFiled: November 3, 1999Date of Patent: July 23, 2002Assignee: LuK Getriebe-Systeme GmbHInventors: Michael Reuschel, Michael Salecker, Oswald Friedmann, Georg Hommes
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Method and apparatus for controlling the operation of a clutch in the power train of a motor vehicle
Patent number: 6394930Abstract: The extent of engagement of an automatically adjustable friction clutch in the power train of a motor vehicle, wherein the clutch receives torque from a rotary output element of an engine and transmits torque to the rotary input element of a transmission, is determined by an electronic control unit in conjunction with an actuator which is responsive to signals from the control unit. Under normal circumstances, the adjustment of the clutch is selected on the basis of control signals which depend upon the actual RPM of the output element and the RPM of the input element. When the actual RPM of the output element departs from a desired RPM, the control signal is altered to reduce the rate of torque transmission by the clutch upon a determination that the actual RPM is below the desired RPM, and to increase the rate of torque transmission by the clutch when the actual RPM exceeds the desired RPM.Type: GrantFiled: August 10, 2000Date of Patent: May 28, 2002Assignee: LuK Getriebe Systeme GmbHInventor: Michael Reuschel -
Patent number: 6386351Abstract: A method of monitoring a torque transmission system with a manually switchable gearbox in the power train of a motor vehicle involves the utilization of at least one sensor unit at the input side of the torque transmission system to ascertain relevant positions of the shift lever of the gearbox and the driving torque of the engine of the motor vehicle. The thus obtained shift lever signals are memorized, together with comparison signals which are obtained as a result of filtering of the shift lever signals, and various characteristics of such signals are recognized and identified to indicate the intention of the operator of the vehicle regarding the switching of the gearbox. The thus obtained switching intention signals are transmitted to a controlled clutch operating system.Type: GrantFiled: May 2, 2000Date of Patent: May 14, 2002Assignee: LuK Getriebe-Systeme GmbHInventors: Michael Salecker, Uwe Wagner, Michael Reuschel, Martin Rauser, Bruno Müller, Alfons Wagner
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Patent number: 6375233Abstract: A transmission for use in the power train of a motor vehicle has a rotary first component (such as a shaft), a second component which may but need not be rotatable, a fluid-conveying conduit having a first end portion extending into a first socket provided in the first component and a second end portion extending into a socket of the second component, a split-ring piston packing located in an external groove of the first end portion, and an O-ring received in an external groove of the second end portion. The O-ring prevents the conduit and the second component from rotating relative to each other.Type: GrantFiled: May 18, 2000Date of Patent: April 23, 2002Assignee: LuK Getriebe-Systems GmbHInventors: Oswald Friedmann, Bernhard Walter, Manfred Homm, Michael Reuschel
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Publication number: 20020042327Abstract: 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.Type: ApplicationFiled: September 2, 2001Publication date: April 11, 2002Inventors: Michael Reuschel, Anton Fritzer
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Patent number: 6358167Abstract: In a continuously variable chain-belt transmission, a ratio-controlling pressure is selectively applied to either one or the other of two pairs of conical disks, while a belt-tightening contact pressure is applied equally in a torque-dependent amount to both disk pairs. A pump pressure generated by a pump is regulated by an offset pressure valve to a pressure level that exceeds the ratio-controlling pressure by a preset amount and at least equals the contact pressure. A current-controlled ratio-controlling valve device directs the ratio-controlling pressure to one or the other of the disk pairs depending on whether the ratio-controlling current is above or below a neutral value. The neutral current value as well as the algorithm describing the functional relationship between the ratio-controlling pressure and the current are continuously updated while the transmission is in use.Type: GrantFiled: August 21, 2000Date of Patent: March 19, 2002Assignee: LuK Lamellen und Kupplungsbau GmbHInventors: Ludger Holtmann, Michael Reuschel
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Patent number: 6358186Abstract: The present invention relates to an apparatus and method for controlling a torque transmitting system and the torque transmittable by the torque transmitting system in a power train of a vehicle with a transmission and an engine, and with at least one actuator controllable by a control unit, such as an actuating unit, for operating the torque transmitting system. This is accomplished in that, in at least one operating state, such as starting or acceleration state, the control unit shifts between at least two operating states of the torque transmitting system in which the system transmitting different torques, so that a different, such as a higher or a lower, torque can be selected and transmitted in the respective operating states for providing a different, such as a higher or a lower, torque to power the vehicle.Type: GrantFiled: March 20, 1997Date of Patent: March 19, 2002Assignee: LuK Getriebe Systeme GmbHInventors: Franz Kosik, Thomas Grass, Klaus Henneberger, Michael Reuschel
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Publication number: 20010046923Abstract: A torque-transmitting system such as continuously variable transmission for motor vehicle has an input device and an output device whose operating state can be described in terms of characteristic operating values. The input device and the output device are adjustable in relation to each other by adjusting a ratio between characteristic operating values, which has the result of changing the transmission ratio. An actuator device performs the functions of shifting the positions of the input and output device as well as holding the devices at a set position. A control device controls the actuator device through a control signal. A computing device performs calculations as well as learning and adapting processes involved in setting the value of the control signal.Type: ApplicationFiled: March 12, 2001Publication date: November 29, 2001Applicant: LuK Lamellen und Kupplungsbau GmbHInventors: Michael Reuschel, Andreas Abele, Anton Fritzer
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Publication number: 20010002549Abstract: Oscillations of a variable quantity, particularly of the rpm rate of an input shaft of a cone-pulley transmission in the power train of a vehicle, are detected by monitoring the rate of change of the variable quantity during time intervals of a predetermined length. The difference between the maximum and minimum levels that the rate of change reaches during the predetermined time period is compared to a threshold reference, and if it is found to exceed the threshold reference, the variable quantity is judged to be in a state of oscillation.Type: ApplicationFiled: November 29, 2000Publication date: June 7, 2001Applicant: Luk Lamellen und Kupplungsbau GmbHInventor: Michael Reuschel
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Patent number: 6171212Abstract: The extent of engagement of an automatically adjustable friction clutch in the power train of a motor vehicle, wherein the clutch receives torque from a rotary output element of an engine and transmits torque to the rotary input element of a transmission, is determined by an electronic control unit in conjunction with an actuator which is responsive to signals from the control unit. Under normal circumstances, the adjustment of the clutch is selected on the basis of control signals which depend upon the actual RPM of the output element and the RPM of the input element. When the actual RPM of the output element departs from a desired RPM, the control signal is altered to reduce the rate of torque transmission by the clutch upon a determination that the actual RPM is below the desired RPM, and to increase the rate of torque transmission by the clutch when the actual RPM exceeds the desired RPM.Type: GrantFiled: August 14, 1998Date of Patent: January 9, 2001Assignee: Luk Getriebe Systeme GmbHInventor: Michael Reuschel
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Patent number: 6129188Abstract: A transmission for use in the power train of a motor vehicle has a rotary first component (such as a shaft), a second component which may but need not be rotatable, a fluid-conveying conduit having a first end portion extending into a first socket provided in the first component and a second end portion extending into a socket of the second component, a split-ring piston packing located in an external groove of the first end portion, and an O-ring received in an external groove of the second end portion. The O-ring prevents the conduit and the second component from rotating relative to each other.Type: GrantFiled: June 23, 1998Date of Patent: October 10, 2000Assignee: LuK Getriebe-Systeme GmbHInventors: Oswald Friedmann, Bernhard Walter, Manfred Homm, Michael Reuschel
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Patent number: 6105743Abstract: A method of monitoring a torque transmission system with a manually switchable gearbox in the power train of a motor vehicle involves the utilization of at least one sensor unit at the input side of the torque transmission system to ascertain relevant positions of the shift lever of the gearbox and the driving torque of the engine of the motor vehicle. The thus obtained shift lever signals are memorized, together with comparison signals which are obtained as a result of filtering of the shift lever signals, and various characteristics of such signals are recognized and identified to indicate the intention of the operator of the vehicle regarding the switching of the gearbox. The thus obtained switching intention signals are transmitted to a controlled clutch operating system.Type: GrantFiled: January 7, 1999Date of Patent: August 22, 2000Assignee: LuK Getriebe-Systeme GmbHInventors: Michael Salecker, Uwe Wagner, Michael Reuschel, Martin Rauser, Bruno Muller, Alfons Wagner
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Patent number: 5989153Abstract: There is disclosed a system for controlling creeping movements of a motor vehicle having a power train with an automated clutch between the engine and the transmission, an electronic control unit for the clutch, and sensors which transmit to the control unit signals denoting the condition of one or more brakes, the positions of an operator-actuatable load lever for the engine, and others. Signals from the control unit are utilized to operate the clutch and, to this end, the control unit includes an arrangement for effecting a creeping movement of the vehicle when the transmission is in gear, the brake or brakes is or are idle, and the load lever is actuated. Such arrangement can effect the transmission of torque in accordance with at least one first predeterminable function to thus induce a creeping movement of the vehicle.Type: GrantFiled: April 21, 1998Date of Patent: November 23, 1999Assignee: LuK Getriebe-Systeme GmbHInventors: Robert Fischer, Oliver Amendt, Michael Reuschel
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Patent number: 5890992Abstract: A method of monitoring a torque transmission system with a manually switchable gearbox in the power train of a motor vehicle involves the utilization of at least one sensor unit at the input side of the torque transmission system to ascertain relevant positions of the shift lever of the gearbox and the driving torque of the engine of the motor vehicle. The thus obtained shift lever signals are memorized, together with comparison signals which are obtained as a result of filtering of the shift lever signals, and various characteristics of such signals are recognized and identified to indicate the intention of the operator of the vehicle regarding the switching of the gearbox. The thus obtained switching intention signals are transmitted to a controlled clutch operating system.Type: GrantFiled: January 21, 1997Date of Patent: April 6, 1999Assignee: LuK Getriebe-Systeme GmbHInventors: Michael Salecker, Uwe Wagner, Michael Reuschel, Martin Rauser, Bruno Muller, Alfons Wagner
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Patent number: 5679091Abstract: A method of monitoring a torque transmission system with a manually switchable gearbox in the power train of a motor vehicle involves the utilization of at least one sensor unit at the input side of the torque transmission system to ascertain relevant positions of the shift lever of the gearbox and the driving torque of the engine of the motor vehicle. The thus obtained shift lever signals are memorized, together with comparison signals which are obtained as a result of filtering of the shift lever signals, and various characteristics of such signals are recognized and identified to indicate the intention of the operator of the vehicle regarding the switching of the gearbox. The thus obtained switching intention signals are transmitted to a controlled clutch operating system.Type: GrantFiled: February 22, 1995Date of Patent: October 21, 1997Assignee: LuK Getriebe-Systeme GmbHInventors: Michael Salecker, Uwe Wagner, Michael Reuschel, Martin Rauser, Bruno Muller, Alfons Wagner