Patents by Inventor Jochen Pohl
Jochen Pohl 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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Patent number: 11897551Abstract: The present invention relates to a system and a method for controlling a feedback torque actuator in a steering system. The steering system comprises a steering assistance actuator (140) with a torsion bar (128) and a feedback torque actuator (130) with an Electric Control Unit, ECU, for giving feedback to a driver, a steering wheel (120) to which the driver applies a driver torque, TD. Only the torsion bar of the steering assistance actuator (140) comprises a torsion-bar torque sensor, and a target torque for the feedback torque actuator (130) is a target steering feel torque compensated for torque sensed in the torsion bar (128).Type: GrantFiled: August 16, 2019Date of Patent: February 13, 2024Assignee: SENTIENT IP ABInventors: Johan Hultén, Jochen Pohl
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Patent number: 11873042Abstract: A method and a system for vehicle steering control by controlling a feedback torque actuator (130) in series with an angle overlay actuator (140) in a vehicle steering system (100) to provide a target feedback torque and a target overlay angle. The feedback torque actuator (130) is arranged above the angle overlay actuator (140). The angle overlay actuator (140) is controlled so that a variable steering ratio and an additional overlay angle are provided, and the feedback torque actuator (130) is controlled using a reference generator so that the torque is controlled to provide a target steering feel, resulting in the angle overlay being controlled at the same time as the steering-wheel torque being controlled whereby a target overlay angle and a good steering feel are achieved.Type: GrantFiled: March 16, 2019Date of Patent: January 16, 2024Assignee: SENTIENT IP ABInventors: Johan Hultén, Jochen Pohl, Henrik Weiefors, Ulf Löfqvist
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Publication number: 20220289288Abstract: The present invention relates to vehicle steering system arrangement (100) comprising a vehicle suspension allowing wheels to be steered and power assisted vehicle steering with a feedback torque actuator (130), the steering feel being controlled by means of a torque and/or angle control system, TAC, (132). The vehicle suspension with steerable wheels comprises a plurality of vehicle suspension parameters and the geometry and/or dimensions of one or more of the vehicle suspension parameters or elements is/are designed to reduce or minimize the steering force required for steering the vehicle in driving.Type: ApplicationFiled: August 18, 2020Publication date: September 15, 2022Inventors: Johan HULTÉN, Jochen POHL, Lars MARKSTRÖM, Patrick FAGERBERG
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Patent number: 11267467Abstract: The present invention relates to a method for controlling vehicle lane holding for a vehicle with an electric power assisted steering by means of a steering system (100) with a steering assistance actuator and one or more controllable vehicle state actuators comprising measurement of at least one vehicle position input signal with using an on-board vision system for determination of a relative vehicle lane position in the form of a lateral lane position, a heading angle and a lane curvature, transformation of the relative vehicle lane position to a target yaw and/or lateral vehicle state, measuring at least one steering input signal, determination from said one or more measured steering input signals a torque value applied by the driver via a steering wheel (120), transformation of said torque value to a relative to the afore-mentioned target yaw and/or lateral vehicle state a driver target relative yaw and/or lateral vehicle state, adding said target yaw and/or lateral vehicle state and said driver target reType: GrantFiled: September 12, 2018Date of Patent: March 8, 2022Assignee: SENTIENT IP ABInventors: Johan Hultén, Jochen Pohl, Ulf Löfqvist, Björn Eriksson, Henrik Weiefors
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Publication number: 20210387666Abstract: The present invention relates to a power assisted steering system arrangement (100A) for a vehicle comprising a steering wheel (120A), a first, driver, link arrangement (10A) comprises a linkage between the steering wheel (120C) and the front wheels (127,127) comprising a steering column (121A), a Recirculating Ball Joint, RCB, (123A) arranged on a first side of the vehicle, a track rod arrangement for steering the front wheels (127,127), a first lever arm (124A) arranged to transfer a driver torque applied by via the steering wheel to the track rod arrangement providing a connection between the RCB (123A) and the track rod arrangement.Type: ApplicationFiled: October 31, 2019Publication date: December 16, 2021Inventors: Johan HULTÉN, Jochen POHL
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Publication number: 20210253158Abstract: The present invention relates to a system and a method for controlling a feedback torque actuator in a steering system. The steering system comprises a steering assistance actuator (140) with a torsion bar (128) and a feedback torque actuator (130) with an Electric Control Unit, ECU, for giving feedback to a driver, a steering wheel (120) to which the driver applies a driver torque, TD. Only the torsion bar of the steering assistance actuator (140) comprises a torsion-bar torque sensor, and a target torque for the feedback torque actuator (130) is a target steering feel torque compensated for torque sensed in the torsion bar (128).Type: ApplicationFiled: August 16, 2019Publication date: August 19, 2021Inventors: Johan HULTÉN, Jochen POHL
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Publication number: 20210129838Abstract: The present invention relates to a method for controlling vehicle lane holding for a vehicle with an electric power assisted steering by means of a steering system (100) with a steering assistance actuator and one or more controllable vehicle state actuators comprising measurement of at least one vehicle position input signal with using an on-board vision system for determination of a relative vehicle lane position in the form of a lateral lane position, a heading angle and a lane curvature, transformation of the relative vehicle lane position to a target yaw and/or lateral vehicle state, measuring at least one steering input signal, determination from said one or more measured steering input signals a torque value applied by the driver via a steering wheel (120), transformation of said torque value to a relative to the afore-mentioned target yaw and/or lateral vehicle state a driver target relative yaw and/or lateral vehicle state, adding said target yaw and/or lateral vehicle state and said driver target reType: ApplicationFiled: September 12, 2018Publication date: May 6, 2021Inventors: Johan HULTÉN, Jochen POHL, Ulf LÖFQVIST, Björn ERIKSSON, Henrik WEIEFORS
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Publication number: 20210129839Abstract: The present invention relates to a method for controlling vehicle lane holding for a vehicle with an electric power assisted steering by means of a steering system (100) with a steering assistance actuator and one or more controllable vehicle state actuators comprising measurement of at least one vehicle position input signal with using an on-board vision system for determination of a relative vehicle lane position in the form of a lane curvature, transformation of the relative vehicle lane position to a target yaw and/or lateral vehicle state, measuring at least one steering input signal, determination from said one or more measured steering input signals a torque value applied by the driver via a steering wheel (120), transformation of said torque value to a relative to the afore-mentioned target yaw and/or lateral vehicle state a driver target relative yaw and/or lateral vehicle state, adding said target yaw and/or lateral vehicle state and said driver target relative yaw and/or lateral vehicle state togetType: ApplicationFiled: September 21, 2018Publication date: May 6, 2021Inventors: Johan HULTÉN, Jochen POHL, Ulf LÖFQVIST, Björn ERIKSSON, Henrik WEIEFORS
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Publication number: 20200406964Abstract: The present invention relates to a method and a system for vehicle steering control comprising controlling a feedback torque actuator (130) in series with an angle overlay actuator (140) in a vehicle steering system (100), where said feedback torque actuator (130) is controlled in such a way that a target feedback torque is achieved and said angle overlay actuator (140) is controlled in such a way that a target overlay angle is achieved. The feedback torque actuator (130) is arranged above said angle overlay actuator (140), i.e.Type: ApplicationFiled: March 16, 2019Publication date: December 31, 2020Inventors: Johan HULTÉN, Jochen POHL, Henrik WEIEFORS, Ulf LÖFQVIST
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Patent number: 10005455Abstract: A method in controlling a steering assistance actuator in a steering system (100) of a vehicle and one or more controllable vehicle state actuators so that the steering-wheel torque applied by the driver is an indicative for the driver intention and transformed to a target yaw and/or lateral vehicle state to be controlled by one or more vehicle state controllers and actuated by the vehicle state actuators along with the fact that the level of understeer is used to achieve an additional steering-wheel torque in the form of a ramp in the steering-wheel torque as a function of the level of understeer.Type: GrantFiled: October 15, 2014Date of Patent: June 26, 2018Assignee: Sentient ABInventors: Johan Hultén, Jochen Pohl
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Patent number: 9751557Abstract: A method is provided for assisting a driver of a vehicle during operation by providing the driver with a desired steering feel. The method includes determining a desired steering device guiding force including a part representing a desired friction in a steering arrangement, and providing the driver with the desired steering feel based on the determined steering device guiding force.Type: GrantFiled: June 29, 2009Date of Patent: September 5, 2017Assignee: Volvo Lastvagnar ABInventors: Jan-Inge Svensson, Jochen Pohl, Sten Ragnhult, Johan Hultén
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Publication number: 20160272197Abstract: A method in controlling a steering assistance actuator in a steering system (100) of a vehicle and one or more controllable vehicle state actuators so that the steering-wheel torque applied by the driver is an indicative for the driver intention and transformed to a target yaw and/or lateral vehicle state to be controlled by one or more vehicle state controllers and actuated by the vehicle state actuators along with the fact that the level of understeer is used to achieve an additional steering-wheel torque in the form of a ramp in the steering-wheel torque as a function of the level of understeer.Type: ApplicationFiled: October 15, 2014Publication date: September 22, 2016Applicant: Sentient Sweden Ekonomisk ForeningInventors: Johan Hulten, Jochen Pohl
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Patent number: 9382927Abstract: An apparatus for recuperation of hydraulic energy from an actuator comprises a first hydraulic machine having a first drive and a second hydraulic machine having a second drive mechanically coupled to the first drive. The first hydraulic machine is in hydraulic communication with an actuator, and the second hydraulic machine (20) is in hydraulic communication with an accumulator.Type: GrantFiled: May 18, 2011Date of Patent: July 5, 2016Assignee: NATIONAL OILWELL VARCO NORWAY ASInventors: David Bengt Johan Ankargren, Jochen Pohl
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Patent number: 9267340Abstract: A heave compensating system for a marine vessel includes a hydraulic machine configured to be coupled to a load suspended from the vessel and to vary the distance between the load and the vessel in response to heaving motion of the vessel. The system further includes a second hydraulic machine in fluid communication with a hydraulic accumulator, both the first and second hydraulic machines are mechanically connected to one another and a shared electric motor, and a controller configured to control hydraulic movement of the first and second hydraulic machines and to control the supply of power to the electric motor.Type: GrantFiled: October 11, 2011Date of Patent: February 23, 2016Assignee: National Oilwell Varco Norway ASInventors: David Bengt Johan Ankargren, Jochen Pohl
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Patent number: 9227633Abstract: A method for changing a vehicle's trajectory, wherein the vehicle includes a steering arrangement including a manual steering device, at least one pair of ground engaging members and a mechanical interconnection therebetween, includes the steps of applying a braking force to at least one of the ground engaging members so that the vehicle's trajectory is changed, and simultaneously suppressing steering device disturbances resulting from the mechanical interconnection.Type: GrantFiled: September 28, 2013Date of Patent: January 5, 2016Assignee: Volvo Lastvagnar ABInventors: Jan-Inge Svensson, Jochen Pohl, Sten Ragnhult
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Patent number: 8762043Abstract: A system for collision course prediction includes a host vehicle sensor system detecting information relating to a target object including a position and a velocity relative to the host vehicle; a time-to-collision estimator control block calculating an estimated time-to-collision based on a longitudinal distance, longitudinal velocity and longitudinal acceleration of the target object relative to the host vehicle; a lateral distance estimator control block, which estimates the lateral distance between the centers of the host vehicle and target object at the estimated time-to-collision; and a collision course condition determination unit determining, at a determination instant prior to the estimated time-to-collision, a probability that the host vehicle will collide with the target object dependent at least in part upon whether the lateral distance is within a first interval, the first interval based on at least a lateral width of the host vehicle and a lateral width of the target object.Type: GrantFiled: January 27, 2009Date of Patent: June 24, 2014Assignee: Volvo Car CorporationInventors: Andreas Eidehall, Claes Olsson, Jochen Pohl
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Patent number: 8738231Abstract: A method for assisting a driver of a vehicle during operation in order to avoid an undesired situation based on a current driving scenario includes predicting if a first guiding force to a vehicle steering device is desired in order to avoid the undesired situation and, if the first guiding force is desired, predicting a total guiding force comprising the first guiding force, which would be applied to the steering device for avoiding the undesired situation, comparing the predicted total guiding force with a limit value, and if the predicted total guiding force exceeds the limit value, in advance, deciding whether to apply the predicted total guiding force to the steering device for avoiding the undesired situation or not.Type: GrantFiled: June 29, 2009Date of Patent: May 27, 2014Assignee: Volvo Lastvagnar ABInventors: Jan-Inge Svensson, Jochen Pohl, Sten Ragnhult, Johan Hultén
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Publication number: 20140032052Abstract: A method for changing a vehicle's trajectory, wherein the vehicle includes a steering arrangement including a manual steering device, at least one pair of ground engaging members and a mechanical interconnection therebetween, includes the steps of applying a braking force to at least one of the ground engaging members so that the vehicle's trajectory is changed, and simultaneously suppressing steering device disturbances resulting from the mechanical interconnection.Type: ApplicationFiled: September 28, 2013Publication date: January 30, 2014Applicant: VOLVO LASTVAGNAR ABInventors: Jan-Inge SVENSSON, Jochen POHL, Sten RAGNHULT
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Publication number: 20130312979Abstract: A heave compensating system for a marine vessel includes a hydraulic machine configured to be coupled to a load suspended from the vessel and to vary the distance between the load and the vessel in response to heaving motion of the vessel. The system further includes a second hydraulic machine in fluid communication with a hydraulic accumulator, both the first and second hydraulic machines are mechanically connected to one another and a shared electric motor, and a controller configured to control hydraulic movement of the first and second hydraulic machines and to control the supply of power to the electric motor.Type: ApplicationFiled: October 11, 2001Publication date: November 28, 2013Applicant: NATIONAL OILWELL VARCO NORWAY ASInventors: David Bengt Johan Ankargren, Jochen Pohl
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Publication number: 20130199168Abstract: An apparatus for recuperation of hydraulic energy from an actuator comprises a first hydraulic machine having a first drive and a second hydraulic machine having a second drive mechanically coupled to the first drive. The first hydraulic machine is in hydraulic communication with an actuator, and the second hydraulic machine (20) is in hydraulic communication with an accumulator.Type: ApplicationFiled: May 18, 2011Publication date: August 8, 2013Applicant: NATIONAL OILWELL VARCO NORWAY ASInventors: David Bengt Johan Ankargren, Jochen Pohl