Patents Assigned to Lucas Automotive GmbH
  • Publication number: 20180238406
    Abstract: A vehicle disc brake assembly includes a brake caliper. The brake caliper has a lug through which a bore extends, the bore having an axis. A guide rod fastener extends through the bore and is secured to a guide rod. An elastic bushing is in the bore between the lug and the guide rod fastener, wherein a circumference of the bushing contacts the lug. A radial clearance is between the lug and the guide rod fastener. The radial clearance is perpendicular to the axis.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 23, 2018
    Applicants: Kelsey-Hayes Company, Lucas Automotive GmbH
    Inventors: Kraig E. Gerber, Markus Mallmann
  • Publication number: 20180215355
    Abstract: A system and a method for preventing a vehicle from rolling away are described. According to one method aspect, in the case of a vehicle equipped with several EPB actuators, the activation of only one of these EPB actuators takes place if in the case of a road inclination lying below a threshold value the vehicle begins to roll away from the stationary state.
    Type: Application
    Filed: January 23, 2018
    Publication date: August 2, 2018
    Applicant: Lucas Automotive GmbH
    Inventors: Ralf Kinder, Heiner Versmold
  • Patent number: 10029658
    Abstract: The invention relates to a technique for boosting the brake force of an electrohydraulic motor vehicle brake system in a mode in which, as a result of a mechanical push-through, an actuating force onto a brake pedal acts upon a master cylinder of the brake system. According to an aspect of this technique, the method comprises the steps of: determining a value of a first variable indicating a current deceleration of the vehicle; determining, based on the first variable, a value of a second variable indicating the actuating force; determining, based on the second variable, a required brake boost; and controlling an electromechanical actuator acting upon the master brake cylinder to obtain the required brake boost.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: July 24, 2018
    Assignee: Lucas Automotive GmbH
    Inventor: Josef Knechtges
  • Patent number: 10029663
    Abstract: An electro-hydraulic motor vehicle brake system is provided, having a first cylinder-piston device, which can be fluidically coupled to at least one wheel brake of the brake system, for generating hydraulic pressure on the at least one wheel brake, wherein the first cylinder-piston device comprises at least one first piston. The brake system further has a second cylinder-piston device, which comprises at least one second piston, and an electromechanical actuator which acts on the second piston of the second cylinder-piston device. The second cylinder-piston device is or can be fluidically coupled at the output side to the first piston of the first cylinder-piston device in order to provide a hydraulic pressure, which is generated in the second cylinder-piston device upon actuation of the electromechanical actuator, for actuating the at least one first piston of the first cylinder-piston device.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: July 24, 2018
    Assignee: Lucas Automotive GmbH
    Inventors: Carsten Knechtges, Josef Knechtges
  • Patent number: 10029659
    Abstract: The invention relates to a technique for operating an electrohydraulic motor vehicle brake system comprising a master cylinder (or any other cylinder-piston arrangement) that can be supplied with a hydraulic fluid from a reservoir, an electromechanical actuator for actuating a piston accommodated in the master cylinder, a wheel brake that can be coupled to the master cylinder, and a stop valve provided between the master cylinder and the wheel brake. According to an aspect of this technique, the method comprises the steps of: controlling the electromechanical actuator to build up hydraulic pressure on the wheel brake; controlling the stop valve to hold the hydraulic pressure already built up on the wheel brake; controlling the electromechanical actuator to take in hydraulic fluid from the reservoir while monitoring a time response of a pressure drop in the master cylinder associated with the take-in; and interrupting the take-in depending on a result of the monitoring.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: July 24, 2018
    Assignee: Lucas Automotive GmbH
    Inventor: Josef Knechtges
  • Publication number: 20180203054
    Abstract: A ground loss detection circuit identifies a faulty ground connection in a vehicle electrical system including a pair of redundant ground lines connected between a vehicle battery/chassis ground and an electronic control unit (ECU). In particular, a first ground line is connected between the battery/chassis ground and a first ECU ground connection, while a second ground line is connected between the battery/chassis ground location and a second ECU ground connection. The ECU includes a common ground associated with selected electronic components included in the ECU. A first shunt component is connected between the first ECU ground connection and the common ground, and a second shunt component is connected between the second ECU ground connection and the common ground. The currents through the first and second shunt components are monitored to identify a current imbalance to detect a faulty ground connection in one of the first and second ground lines.
    Type: Application
    Filed: July 8, 2016
    Publication date: July 19, 2018
    Applicants: Kelsey-Hayes Company, Lucas Automotive GmbH, TRW Automotive GmbH
    Inventors: Antonio Romero, Johannes Orth, Erik Hermann, William J. Lindeman
  • Patent number: 10006511
    Abstract: A brake pad arrangement for a vehicle brake, having a frictional pad, a pad back plate and a damping plate that is arranged on the pad back plate, the brake pad arrangement having a separate damping element which is provided in order to avoid frictional vibrations of the brake pad arrangement.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: June 26, 2018
    Assignee: Lucas Automotive GmbH
    Inventors: Markus Mallmann, Peter Stahl, Wolfgang Rüdell
  • Publication number: 20180163800
    Abstract: A disc brake assembly includes a brake clip having a U-shaped section, at least one retention tang, and an abutment leg. The U-shaped section has a base leg and opposing upper and lower legs extending from the base leg. The upper leg has an inner face facing the lower leg. The at least one tang extends away from the U-shaped section and inner face. The abutment leg extends from the lower leg and has a midpoint between a top edge and a bottom edge. The midpoint is not planar with the top and bottom edges.
    Type: Application
    Filed: December 8, 2016
    Publication date: June 14, 2018
    Applicants: Kelsey-Hayes Company, Lucas Automotive GmbH
    Inventors: Manuel Barbosa, Kraig E. Gerber, Anthony Dixon, Frank Madzgalla, Juergen Korte, Tobias Lenarz, Raphael Mueller, Philip Kexel
  • Publication number: 20180148031
    Abstract: The invention relates to an electrohydraulic motor vehicle braking system and to a method for operating an electrohydraulic motor vehicle braking system.
    Type: Application
    Filed: April 13, 2016
    Publication date: May 31, 2018
    Applicant: Lucas Automotive GmbH
    Inventors: Carsten Knechtges, Josef Knechtges
  • Patent number: 9976609
    Abstract: A vehicle disc brake assembly includes a brake caliper. The brake caliper has a lug through which a bore extends, the bore having an axis. A guide rod fastener extends through the bore and is secured to a guide rod. An elastic bushing is in the bore between the lug and the guide rod fastener, wherein a circumference of the bushing contacts the lug. A radial clearance is between the lug and the guide rod fastener. The radial clearance is perpendicular to the axis.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: May 22, 2018
    Assignees: Kelsey-Hayes Company, Lucas Automotive GmbH
    Inventors: Kraig E. Gerber, Markus Mallmann
  • Patent number: 9975558
    Abstract: The present invention describes a control system, which is adapted and determined to identify motor vehicles driving in front. The control system is at least adapted and determined to detect another motor vehicle participating in the traffic with the at least one environmental sensor. The control system is at least adapted and determined to determine positions of the other motor vehicle for a predetermined time interval.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: May 22, 2018
    Assignee: Lucas Automotive GmbH
    Inventors: Richard Altendorfer, Bjoem Oska
  • Patent number: 9975534
    Abstract: An electrohydraulic brake system includes an electromechanical actuator for actuating at least one hydraulic piston to provide a hydraulic pressure at one or more of a plurality of wheel brakes. The brake system further includes electrically activatable valve arrangements having a first valve arrangement between a cylinder accommodating the at least one hydraulic piston and each of the plurality of wheel brakes, and at least one second valve arrangement. The second valve arrangement is provided between a receptacle device for hydraulic fluid and at least one of the wheel brakes. The second valve arrangement is provided in parallel with the first valve arrangement associated with the same wheel brake as the second valve arrangement. The brake system also includes a control device or system that opens one of the first valve arrangements and the second valve arrangement connected in parallel therewith, in order to release a hydraulic pressure built up in the cylinder.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: May 22, 2018
    Assignee: Lucas Automotive GmbH
    Inventors: Carsten Knechtges, Josef Knechtges, Andreas Passmann
  • Publication number: 20180134268
    Abstract: The present invention relates to an electrohydraulic braking-force generation device and to a method for operating an electrohydraulic braking-force generation device. The electrohydraulic braking-force generation device comprises: a power transmission assembly that is coupled to a brake pedal; a brake cylinder assembly that is to be actuated by the power transmission assembly, the brake cylinder assembly having a first cylinder-piston assembly and said first cylinder-piston assembly being designed to be fluidically coupled to at least one brake circuit; and a brake booster assembly comprising a second cylinder-piston assembly and at least one electromechanical actuator. The brake booster assembly is configured to apply hydraulic pressure to the brake cylinder assembly in order to boost the braking power and the power transmission assembly is configured to actuate the brake cylinder assembly, in each operating mode of the braking-force generation device, by means of a relative movement.
    Type: Application
    Filed: April 8, 2016
    Publication date: May 17, 2018
    Applicant: Lucas Automotive GmbH
    Inventors: Carsten Knechtges, Josef Knechtges, Benedikt Ohlig, Markus Necknig
  • Patent number: 9956943
    Abstract: An electrohydraulic motor vehicle brake system is provided, having a hydraulic simulator circuit for generating a pedal feedback force, having a cylinder-piston unit and having an electromechanical actuator which acts on the cylinder-piston unit and which serves for generating a hydraulic pressure in at least one brake circuit, having a first fluid path with, arranged therein, a first valve device for the selective fluidic coupling of the cylinder-piston unit to the simulator circuit, and having a second fluid path with, arranged therein, a second valve device for the selective fluidic coupling of the simulator circuit to an unpressurized hydraulic fluid reservoir. Also specified are a ventilation method for a brake system of said type, a testing method for a further electrohydraulic motor vehicle brake system with only a first valve device, and a respective computer program product, with program code means, for carrying out one of the two methods when the computer program is executed on a processing unit.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: May 1, 2018
    Assignee: Lucas Automotive GmbH
    Inventor: Nicholas Alford
  • Publication number: 20180087589
    Abstract: A vehicle disc brake assembly includes a brake caliper. The brake caliper has a lug through which a bore extends, the bore having an axis. A guide rod fastener extends through the bore and is secured to a guide rod. An elastic bushing is in the bore between the lug and the guide rod fastener, wherein a circumference of the bushing contacts the lug. A radial clearance is between the lug and the guide rod fastener. The radial clearance is perpendicular to the axis.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 29, 2018
    Applicants: Kelsey-Hayes Company, Lucas Automotive GmbH
    Inventors: Kraig E. Gerber, Markus Mallmann
  • Patent number: 9925966
    Abstract: A brake master cylinder arrangement includes a housing with a cylindrical recess, a pressure piston moveable in the cylindrical recess along a longitudinal axis and guided in a sealing manner, and a reservoir for storing brake fluid that is fluidically connected via a fluid channel to the housing. The pressure piston and the housing enclose a pressure chamber that is connected to a fluid circuit of the brake system. Depending on the position of the associated pressure piston, the pressure chamber is either fluidically connected to the fluid reservoir or disconnected therefrom. In a region that axially spans the sealing arrangement in a starting position of the pressure piston, the outer circumferential surface of the pressure piston has profiling that provides a fluidic connection between the fluid reservoir and the pressure chamber.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: March 27, 2018
    Assignee: Lucas Automotive GmbH
    Inventors: David Lopéz-Larequi, Hans-Martin Giese
  • Patent number: 9919691
    Abstract: The invention relates to a motor vehicle brake, in particular a motor vehicle brake that can be actuated in a combined hydraulic and electromechanical manner, having an actuator assembly comprising: a housing, an actuating element that can be displaced relative to the housing along a longitudinal axis for the hydraulic or electromechanical displacement of a brake lining, a motor drive, and a displacement mechanism, arranged between the motor drive and the displaceable actuating element, for displacing the actuating element. The displacement mechanism has a multi-stage spindle-nut arrangement comprising a first spindle-nut pair having a first thread pitch and a second spindle-nut pair having a second thread pitch, wherein the first thread pitch is greater than the second thread pitch, wherein, during an electromechanical actuation of the motor vehicle brake, the first spindle-nut pair is active in a first actuating phase and the second spindle-nut pair is active in a second actuating phase.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: March 20, 2018
    Assignee: Lucas Automotive GmbH
    Inventors: Benedikt Ohlig, Erwin Michels
  • Patent number: 9919686
    Abstract: A disc brake for a motor vehicle, wherein it is possible to displace the actuating piston in the housing both by hydraulic pressure activation of a hydraulic chamber formed in the housing and via a mechanical actuator, wherein the sealing ring is accommodated in an annular groove formed in the housing. Provision is made here for the annular groove to have a groove floor, which runs substantially parallel to the longitudinal axis of the piston, and two groove walls, which adjoin the groove floor, wherein—as seen in the direction of the longitudinal axis of the piston—a first groove wall is directed away from the hydraulic chamber and a second groove wall is directed towards the hydraulic chamber, wherein the first groove wall merges into the groove floor via a rounded or bevelled transition region at a varying distance from the longitudinal axis of the piston.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: March 20, 2018
    Assignee: Lucas Automotive GmbH
    Inventors: Peter Stahl, Boris Kuhnert, Christian Damrau, Christian Tharr, Dietrich Podzuweit, Maria Heinemann, Martin Brandt, Nong Dang, Michael Schog
  • Patent number: 9914454
    Abstract: This invention relates to a vehicle speed control system, configured with off-road performance features, that will allow the driver to travel at a set speed in a smooth, controlled manner on various unmaintained surfaces without requiring the driver to press the brake or accelerator pedal. The vehicle speed control system uses a brake controller to control the wheel brakes, and an engine controller to control the engine/drivetrain torque, separate or in combination, to maintain a target speed.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 13, 2018
    Assignees: Kelsey-Hayes Company, Lucas Automotive GmbH
    Inventors: Sean Simmons, Shawn Hawley, Charles Anthony Bartlett, Elmar Hoffmann
  • Patent number: 9902383
    Abstract: A master brake cylinder arrangement (10) for a motor vehicle brake system, comprising a master brake cylinder housing (12) with a cylindrical recess (28), at least one pressure piston (30, 32) which is displaceable and sealingly guided in the cylindrical recess (28) of the master brake cylinder housing (12), a fluid reservoir (14) which is fluidically coupled to the master brake cylinder housing (12) via a connecting region (22) and which serves for storing brake fluid, wherein the at least one pressure piston (30, 32) together with the master brake cylinder housing (12) sealingly encloses a pressure chamber (38, 40) which, as a function of the position of the associated pressure piston (30, 32), is fluidically connected to or separated from the fluid reservoir (14), wherein furthermore the at least one pressure chamber (38, 40) can be or is fluidically coupled to a fluid circuit of the motor vehicle brake system, wherein the fluid reservoir (14) in the connecting region (22) is received, in a manner sealed b
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: February 27, 2018
    Assignee: LUCAS AUTOMOTIVE GMBH
    Inventors: David Lopéz Larequi, Hans-Martin Giese