Abstract: A hybrid transmission includes a torque machine and an energy storage device connected thereto. The hybrid transmission is operative to transfer power between an input member and an output member and the torque machines in a fixed gear operating range state.
Type:
Grant
Filed:
October 21, 2008
Date of Patent:
March 13, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Inventors:
Anthony H. Heap, Tung-Ming Hsieh, Bin Wu
Abstract: A vehicle includes a powertrain system and a friction braking system communicating tractive torque with a driveline, the powertrain system including a torque machine, and an energy storage device connected to the torque machine, said torque machine communicating tractive torque with the driveline. A method for controlling regenerative braking and friction braking includes monitoring a vehicle operating point, determining a braking torque request, determining a regenerative braking motor torque ratio based upon the vehicle operating point wherein the regenerative braking motor torque ratio is non-linearly dependent on the vehicle operating point, and actuating the friction brake based upon the regenerative braking motor torque ratio and the braking torque request.
Type:
Grant
Filed:
October 29, 2008
Date of Patent:
March 13, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Inventors:
Monika A Minarcin, Jon K. Logan, Jian M Wang, Eric M. Rask
Abstract: Operation of an electro-mechanical transmission includes determining motor torque constraints and battery power constraints. An additional constraint on the electro-mechanical transmission is determined. A preferred output torque is determined that is achievable within the motor torque constraints and based upon the additional constraint and the battery power constraints.
Type:
Grant
Filed:
September 27, 2008
Date of Patent:
March 13, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Abstract: A system assembly detects the amount of reducing agent and the amount of pollutant in an exhaust gas. The system assembly has a first pollutant sensor, which is cross-sensitive to the reducing agent, and is provided for emitting a first measuring signal proportional to the amount of pollutant in the exhaust gas for use in front of a filtering device for the selective reducing of the reducing agent or the pollutant in the exhaust gas. A second pollutant sensor, which is also cross-sensitive to the reducing agent, emits a second measuring signal proportional to the amount of pollutant in the exhaust gas for use behind the filtering device.
Type:
Application
Filed:
November 11, 2011
Publication date:
March 8, 2012
Applicant:
Bayerische Motoren Werke Aktiengesellschaft
Abstract: An internal combustion engine has a crankcase, a crankshaft and at least one crankshaft bearing that can be loaded with lubricant for the purpose of mounting the crankshaft in the crankcase. The at least one crankshaft bearing has at least two separate lubricant feed systems.
Type:
Application
Filed:
November 9, 2011
Publication date:
March 8, 2012
Applicant:
Bayerische Motoren Werke Aktiengesellschaft
Inventors:
Bertram Zapp, Manfred Maier, Johannes Hoehl
Abstract: A powertrain system includes a multi-cylinder engine coupled to a hybrid transmission. The engine is selectively operative in one of a plurality of main engine states to transfer engine torque to the hybrid transmission. A method for operating a powertrain system includes monitoring an operator torque request, determining a preferred main engine state and a preferred engine torque associated with the preferred engine state, determining an engine state transition path from a present main engine state to the preferred main engine state including an engine transition state, and executing the engine state transition path between the present main engine state and the preferred main engine state and adjusting engine torque to the preferred engine torque.
Type:
Grant
Filed:
October 19, 2008
Date of Patent:
March 6, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Abstract: A method is provided for determining an address of a component of a vehicle, wherein a vehicle identification is determined and stored in a first field of the address, and wherein an identification of the component is stored in a second field of the address. Furthermore, a method for accessing a component of a vehicle, in particular, a control unit of the vehicle, by use of the determined address of the component is provided, as well as a vehicle with at least one such component is also proposed.
Type:
Application
Filed:
August 30, 2011
Publication date:
March 1, 2012
Applicant:
Bayerische Motoren Werke Aktiengesellschaft
Inventors:
Max Kicherer, Torsten Schlichter, Lars Voelker
Abstract: A method and a device are provided for operating an electrically driven motor vehicle with a battery-fed electric drive motor and a generator-coupled internal combustion engine for providing electric energy for the battery. An internal combustion engine is operated based on the state of charge of the battery. In the method, a route to a previously entered destination is determined by way of a navigation system, and it is checked periodically, based on the particular route, a detected charge level of the battery and a detected energy consumption, whether the destination will be reached or whether there is a range gap to the destination. When a range gap is determined, it is determined, whether the destination can be reached in at least one specified energy saving operating mode, in which the energy consumption is reduced, or whether the destination will be reached only in REX operating mode. The driver is sent a corresponding recommendation.
Type:
Application
Filed:
August 23, 2011
Publication date:
March 1, 2012
Applicant:
Bayerische Motoren Werke Aktiengesellschaft
Abstract: A powertrain system includes an engine mechanically coupled to an electro-mechanical transmission at an input thereto selectively operative in one of a plurality of transmission operating range states and one of a plurality of engine states. A method for controlling the powertrain system includes combining sets of preferability factors inputted from engine sensors in a microprocessor or computer with other preferability factors generated during engine and vehicle operation to provide an output for a transmission control module, which may execute an operating range or engine state change.
Type:
Grant
Filed:
September 23, 2008
Date of Patent:
February 28, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Abstract: A pivotable tailgate for a motor vehicle includes pivot arms disposed as one piece on the tailgate body at a distance from one another. At an upper end of each pivot arm, a respective hinge arm is provided, each of which is mounted in a roof section of the body so that there is sealing between an upper tailgate section, a tailgate body, and a tailgate opening via a single encircling seal disposed at the tailgate opening, without additional sealing of the respective pivot arms being required.
Type:
Grant
Filed:
February 22, 2010
Date of Patent:
February 28, 2012
Assignee:
Bayerische Motoren Werke Aktiengesellschaft
Inventors:
Nicholas Aldersley, Michael Rodewald, Achim Dockweiler
Abstract: A method to control an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and first and second electric machines to transmit power to an output member includes determining motor torque constraints and battery power constraints. A preferred output torque to an output member is determined that is achievable within the motor torque constraints and is achievable within a range for a first torque input and is achievable within a range for a second torque input and is based upon the battery power constraints.
Type:
Grant
Filed:
September 26, 2008
Date of Patent:
February 21, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Abstract: A method for controlling a hybrid powertrain system selectively operative in one of a plurality of operating range states including an engine includes monitoring an operator torque request and a rotational speed of the output member, determining inertial effects of the transmissions, determining motor torque outputs from the electrical machines and an engine based upon the inertial effects, and selecting a preferred operating range state and a preferred input speed from the engine to the transmission based upon the operator torque request and the inertial effects.
Type:
Grant
Filed:
September 23, 2008
Date of Patent:
February 21, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Abstract: A method to monitor integrity of a signal in a distributed control system for a powertrain system includes communications link transmitting signals between control modules. Integrity of each of the control modules is monitored. The signal is generated and verified in an originating control module and transmitted to a receiving control module whereat it is subsequently verified.
Type:
Grant
Filed:
October 7, 2008
Date of Patent:
February 21, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Inventors:
Hanne Buur, William R. Cawthorne, Leonard G. Wozniak
Abstract: A method for operating an engine includes defining a two-dimensional search region based upon an input power transmittable between the internal combustion engine and an electromechanical transmission. The method further includes iteratively dividing the two-dimensional search region into a plurality of subregions based upon one of the input power and the input speed, iteratively determining an engine operating point within each of the subregions, iteratively calculating an operating cost to operate the internal combustion engine and the electromechanical transmission to meet the operator torque request for each engine operating point within each of the subregions, and iteratively identifying the subregion having a minimum operating cost to meet the operator torque request. A preferred engine operating point is determined based upon the engine operating point within the identified subregion having the minimum operating cost to meet the operator torque request.
Type:
Grant
Filed:
September 29, 2008
Date of Patent:
February 21, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
Inventors:
Anthony H. Heap, Bin Wu, Wilfried Brunssen, Jason J McConnell, Kee Yong Kim, Brian R Medema
Abstract: In a method for assisting in error detection for a motor vehicle, characteristic data for an accessory device connected to a device in the motor vehicle are stored in a memory unit provided in the motor vehicle.
Type:
Grant
Filed:
February 8, 2007
Date of Patent:
February 21, 2012
Assignee:
Bayerische Motoren Werke Aktiengesellschaft
Inventors:
Thomas Sykora, Anne-Laure Schulze Wessel, Nizar Hneini, Tobias Kiefer
Abstract: A method for controlling torque in a hybrid powertrain system to selectively transfer mechanical power to an output member includes monitoring operator inputs to an accelerator pedal and to a brake pedal. An immediate accelerator output torque request, a predicted accelerator output torque request, an immediate brake output torque request, a predicted brake output torque request, and an axle torque response type are determined. An output torque command to the output member of the transmission is determined based upon the immediate accelerator output torque request and the immediate brake output torque request.
Type:
Grant
Filed:
October 10, 2008
Date of Patent:
February 21, 2012
Assignees:
GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft