Patents by Inventor Christian Rebinger

Christian Rebinger 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).

  • Publication number: 20220410665
    Abstract: A reheating process for operating a cooling system having a heat pump function for a motor vehicle. The reheating process includes steps of determining a heat differential value by comparing a heat emission actual value at the heating register to a heat emission target value, and adjusting at least one operating setting of the cooling system, so that the power consumption in the cooling system is increased if the heat differential value is greater than 0 and less than a heat differential threshold value.
    Type: Application
    Filed: September 28, 2020
    Publication date: December 29, 2022
    Applicant: AUDI AG
    Inventors: Dirk SCHROEDER, Christian REBINGER, Marco WILL, Simon BOGNER
  • Publication number: 20220324296
    Abstract: A method for operating a coolant circuit of a refrigeration system of a vehicle having multiple system sections. A single pressure sensor is located in each system section. A temperature sensor is arranged downstream at each component to be balanced in the system sections, such as heat exchangers and a coolant compressor. The sensor signals of the pressure and temperature sensors are supplied to a control unit for the control or regulation of the refrigeration system. Furthermore, a pressure approximation value at the position of the temperature sensor is calculated by a pressure loss value determined using a pressure loss calculation function starting from the position of the pressure sensor arranged in the system section of the component up to the position of the temperature sensor if the temperature sensor and the pressure sensor are arranged at different positions in the system section.
    Type: Application
    Filed: February 19, 2020
    Publication date: October 13, 2022
    Applicant: AUDI AG
    Inventors: Dirk SCHROEDER, Christian REBINGER, Helmut ROTTENKOLBER
  • Publication number: 20220297504
    Abstract: A modular cooling system for a vehicle including a base module having a refrigerant compressor, a high-pressure section having a direct or indirect condenser or gas cooler, and a low-pressure section having an evaporator and a chiller having chiller expansion elements connected upstream. The low-pressure section is connected via a heat pump expansion element to the high-pressure section. A first supplementary module has a heating branch having a heat pump heat exchanger, which is connectable via a first reheating branch having a valve element to the direct or indirect condenser or gas cooler, and a heat pump recirculation branch having a blockable valve element for connecting the direct or indirect condenser or gas cooler to the low-pressure section.
    Type: Application
    Filed: September 22, 2020
    Publication date: September 22, 2022
    Applicant: AUDI AG
    Inventors: Dirk SCHROEDER, Christian REBINGER, Helmut ROTTENKOLBER
  • Patent number: 11364770
    Abstract: A refrigeration system for a vehicle including a refrigerant circuit having a double-flow heat exchanger, it being possible to operate the heat exchanger as a refrigerant condenser/gas cooler for an AC mode or as an air heat pump evaporator for a heat pump mode. The first flow of the heat exchanger has a first refrigerant connection and the second flow of the heat exchanger has a second refrigerant connection. For double flow through the heat exchanger in AC mode the first refrigerant connection is a refrigerant inlet and the second refrigerant connection is a refrigerant outlet. For single flow through the heat exchanger in heat pump mode the second refrigerant connection is a refrigerant inlet.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: June 21, 2022
    Assignee: AUDI AG
    Inventors: Dirk Schroeder, Christian Rebinger, Helmut Rottenkolber
  • Patent number: 11279205
    Abstract: A method for operating a coolant circuit of a vehicle cooling system in an AC mode and in a heating mode, implemented by a heat pump function, having an evaporator branch including an evaporator and a first expansion element, a coolant compressor, an AC and heat pump branch, having an outer condenser or gas cooler, as a heat pump evaporator having a second expansion element. The AC and heat pump branch is connected to the coolant compressor via a first blocking element and to the evaporator branch via the second expansion element, a heating branch having an inner heating condenser or heating gas cooler and a second blocking element, connected downstream thereto.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: March 22, 2022
    Assignee: AUDI AG
    Inventors: Dirk Schroeder, Christian Rebinger
  • Publication number: 20210268868
    Abstract: A method for operating a refrigeration system for a vehicle, which refrigeration system includes a refrigerant circuit having a heat pump function. The refrigerant circuit has an exterior heat exchanger, which is operated as a condenser or gas cooler in order to perform a refrigeration system mode or as a heat pump evaporator in order to carry out a heat pump mode. The refrigerant circuit has an interior heating condenser or heating gas cooler for carrying out a heating mode. The interior heating condenser or heating gas cooler is fluidically connected to the exterior heat exchanger, downstream, by a post-heating expansion device in order to carry out a post-heating mode. The opening cross-section of the post-heating expansion device is controlled in accordance with a refrigeration system parameter indicating the required post-heating power.
    Type: Application
    Filed: August 2, 2019
    Publication date: September 2, 2021
    Applicant: AUDI AG
    Inventors: Dirk SCHROEDER, Christian REBINGER, Helmut ROTTENKOLBER
  • Patent number: 11104204
    Abstract: A method for operating a cooling circuit. It is provided that a) the actuation signal ST of the coolant compressor is provided so as to increase over time from a minimum value (STmin) in order to generate a start-up phase of the coolant compressor, b) a control signal maximum value (STmax) and a control signal threshold (STSW) are provided, where STSW<STmax, c) the actuation signal (ST) is limited to the control signal maximum value (STmax) if the actuation signal (ST) reaches the control signal threshold (STSW) and the measured high and/or low-pressure value (PHD, PND) satisfies a condition.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: August 31, 2021
    Assignee: AUDI AG
    Inventors: Dirk Schroeder, Christian Rebinger, Helmut Rottenkolber, Jan Wack
  • Publication number: 20210148616
    Abstract: A refrigeration system for a vehicle including a refrigerant circuit having a double-flow heat exchanger, it being possible to operate the heat exchanger as a refrigerant condenser/gas cooler for an AC mode or as an air heat pump evaporator for a heat pump mode. The first flow of the heat exchanger has a first refrigerant connection and the second flow of the heat exchanger has a second refrigerant connection. For double flow through the heat exchanger in AC mode the first refrigerant connection is a refrigerant inlet and the second refrigerant connection is a refrigerant outlet. For single flow through the heat exchanger in heat pump mode the second refrigerant connection is a refrigerant inlet.
    Type: Application
    Filed: March 5, 2018
    Publication date: May 20, 2021
    Applicant: AUDI AG
    Inventors: Dirk SCHROEDER, Christian REBINGER, Helmut ROTTENKOLBER
  • Patent number: 10914504
    Abstract: The invention relates to a device and a method for icing prevention regulation for a heat pump evaporator (3) in air conditioning systems of vehicles, composed of a subsection (1) of a refrigerant circuit which can be operated both as a heat pump and also as an air conditioning system. The device comprises the heat pump evaporator (3), an electrical or mechanical refrigerant compressor (4), a cooler fan (9) which is attached to the heat pump evaporator (3) and which draws ambient air (11) upstream from and through the heat pump evaporator (3) at an adjustable flow speed, and which thus permits a permanent flow of ambient air (11) over the heat pump evaporator surface, a first temperature sensor (6) in or on the refrigerant line (5, 5a) upstream from the heat pump evaporator (3) with respect to the heat pump operating direction, and a control and regulating unit (8).
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: February 9, 2021
    Assignees: Audi AG, Halla Visteon Climate Control Corporation
    Inventors: Engelbert Schmitz, Peter Heyl, Marc Graaf, Christian Rebinger, Dirk Schroeder
  • Publication number: 20200269654
    Abstract: A method for operating a coolant circuit of a vehicle cooling system in an AC mode and in a heating mode, implemented by a heat pump function, having an evaporator branch including an evaporator and a first expansion element, a coolant compressor, an AC and heat pump branch, having an outer condenser or gas cooler, as a heat pump evaporator having a second expansion element. The AC and heat pump branch is connected to the coolant compressor via a first blocking element and to the evaporator branch via the second expansion element, a heating branch having an inner heating condenser or heating gas cooler and a second blocking element, connected downstream thereto.
    Type: Application
    Filed: October 1, 2018
    Publication date: August 27, 2020
    Applicant: AUDI AG
    Inventors: Dirk SCHROEDER, Christian REBINGER
  • Publication number: 20200130468
    Abstract: A method for operating a cooling circuit. It is provided that a) the actuation signal ST of the coolant compressor is provided so as to increase over time from a minimum value (STmin) in order to generate a start-up phase of the coolant compressor, b) a control signal maximum value (STmax) and a control signal threshold (STSW) are provided, where STSW<STmax, c) the actuation signal (ST) is limited to the control signal maximum value (STmax) if the actuation signal (ST) reaches the control signal threshold (STSW) and the measured high and/or low-pressure value (PHD, PND) satisfies a condition.
    Type: Application
    Filed: March 1, 2018
    Publication date: April 30, 2020
    Applicant: Audi AG
    Inventors: Dirk SCHROEDER, Christian REBINGER, Helmut ROTTENKOLBER, Jan WACK
  • Publication number: 20200023709
    Abstract: A cooling system of a vehicle, including a coolant circuit, which can be operated as a cooling circuit for an AC operation and as a heat pump circuit for a heating operation, an evaporator, a coolant compressor, a heat exchanger in the form of a coolant condenser or gas cooler for the coolant circuit or in the form of a heat pump evaporator for the heat pump circuit, a first expansion element which is paired with the evaporator, a second expansion element, the heat pump evaporator function of which is paired with the heat exchanger, and an inner heat exchanger with a high-pressure section and a low-pressure section. The low-pressure section is fluidically connected to the downstream coolant compressor. The high-pressure section of the inner heat exchanger is arranged in a coolant circuit section which connects the second expansion element to the heat exchanger.
    Type: Application
    Filed: March 5, 2018
    Publication date: January 23, 2020
    Applicant: AUDI AG
    Inventors: Dirk SCHROEDER, Christian REBINGER, Thomas ANZENBERGER
  • Patent number: 9823023
    Abstract: A heat exchanger unit that enables a quick interchanging of function, form and size of the different heat exchanger modules. The interchanging may be possible in regard to the sequence of the individual heat exchanger modules. The heat exchanger unit in includes inserts configured such that appropriately configured cassettes can be inserted, and an inner shape of the cassettes is configured so that different heat exchanger modules can be accommodated therein. The cassettes are thus designed specific to the heat exchanger, while the outer shape of all cassettes conforms to the shape of the uniformly configured inserts.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: November 21, 2017
    Assignee: HANON SYSTEMS
    Inventors: Juergen Hoppen, Raymond Ambs, Christian Rebinger, Dirk Schroeder
  • Patent number: 9738138
    Abstract: A vehicle air conditioner with a refrigerant circuit has as components at least one evaporator, a refrigerant compressor, a refrigerant condenser, an expansion valve associated with the evaporator and at least one heat exchanger with an associated expansion valve for coupling with a coolant circuit of a heat source, wherein the components are connected by a refrigerant line. A refrigerant container is provided which is connected on the high-pressure side of the refrigerant compressor with the refrigerant line and has a refrigerant-receiving chamber with a controllable volume, and a control unit is provided with which the volume of the chamber of the refrigerant container is controlled as a function of operating parameters of the refrigerant circuit. Alternatively, the refrigerant container is connected on the high-pressure side of the refrigerant compressor with the refrigerant line by way of a branch line.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: August 22, 2017
    Assignee: AUDI AG
    Inventors: Christian Rebinger, Dirk Schroeder, Klaus Strasser, Ruben Gonzalez
  • Patent number: 9242527
    Abstract: The invention relates to a refrigerant circuit and a process for operation of the refrigerant circuit of an HVAC system of a vehicle, particularly an electric or hybrid vehicle. The refrigerant circuit includes a primary circuit with a compressor, a heat exchanger for heat transmission between the refrigerant and the environment, a collector, a first expansion member, a heat exchanger for supply of heat from the fresh air to be conditioned of the vehicle interior to the refrigerant and a heat exchanger arranged switched in parallel to the heat exchanger. Further, the refrigerant circuit is provided with a secondary train that extends starting from a tapping point positioned between the compressor and the heat exchanger up to a connection point and is provided with a heat exchanger for heat transmission from the refrigerant to the fresh air to be conditioned for the vehicle interior, and a subsequent control valve.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: January 26, 2016
    Assignee: Hanon Systems
    Inventors: Marc Graaf, Florian Wieschollek, Christian Rebinger, Dirk Schroeder
  • Publication number: 20150266358
    Abstract: A vehicle air conditioner with a refrigerant circuit has as components at least one evaporator, a refrigerant compressor, a refrigerant condenser, an expansion valve associated with the evaporator and at least one heat exchanger with an associated expansion valve for coupling with a coolant circuit of a heat source, wherein the components are connected by a refrigerant line. A refrigerant container is provided which is connected on the high-pressure side of the refrigerant compressor with the refrigerant line and has a refrigerant-receiving chamber with a controllable volume, and a control unit is provided with which the volume of the chamber of the refrigerant container is controlled as a function of operating parameters of the refrigerant circuit. Alternatively, the refrigerant container is connected on the high-pressure side of the refrigerant compressor with the refrigerant line by way of a branch line.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 24, 2015
    Applicant: Audi AG
    Inventors: Christian Rebinger, Dirk Schroeder, Klaus Strasser, Ruben Gonzalez
  • Publication number: 20150107278
    Abstract: The invention relates to a device and a method for icing prevention regulation for a heat pump evaporator (3) in air conditioning systems of vehicles, composed of a subsection (1) of a refrigerant circuit which can be operated both as a heat pump and also as an air conditioning system. The device comprises the heat pump evaporator (3), an electrical or mechanical refrigerant compressor (4), a cooler fan (9) which is attached to the heat pump evaporator (3) and which draws ambient air (11) upstream from and through the heat pump evaporator (3) at an adjustable flow speed, and which thus permits a permanent flow of ambient air (11) over the heat pump evaporator surface, a first temperature sensor (6) in or on the refrigerant line (5, 5a) upstream from the heat pump evaporator (3) with respect to the heat pump operating direction, and a control and regulating unit (8).
    Type: Application
    Filed: March 8, 2013
    Publication date: April 23, 2015
    Inventors: Engelbert Schmitz, Peter Heyl, Marc Graaf, Christian Rebinger, Dirk Schroeder
  • Publication number: 20140138049
    Abstract: The invention relates to a vehicle with an air conditioner for heating inlet air flowing into a vehicle interior, the air conditioner including: a heater heat exchanger thermally coupled through a coolant cycle with a drive unit or similar; and a supplemental heat exchanger which is connected to a refrigerant cycle of the air conditioner and which transfers heat to the inlet air in heating mode, wherein the supplemental heat exchanger is configured with at least two rows including a first heat exchanger row and a second heat exchanger row in a refrigerant flow direction, wherein the first heat exchanger row and the second heat exchanger row are arranged in a refrigerant flow direction so that super cooling of a condensed refrigerant is provided in the second heat exchanger row and at least heat extraction of the refrigerant is provided in the first heat exchanger row.
    Type: Application
    Filed: May 12, 2013
    Publication date: May 22, 2014
    Applicant: VISTEON GLOBAL TECHNOLOGIES INC
    Inventors: Dirk Schroeder, Hans Hammer, Christian Rebinger, Peter Heyl
  • Publication number: 20140075966
    Abstract: The invention relates to a method for operating an air conditioner (1) for treating the air of a passenger compartment of a motor vehicle. The air conditioner (1) exhibits a refrigerant circuit (2) configured for a combined cooling unit and heat-pump mode and for a post-heating mode. In the heat-pump mode with a first and a second heat source, two heat sources differing from each other can be used. A temperature of the first heat source, a temperature of the second heat source, and a regulation characteristic number and a maximum pressure are taken into account in the refrigerant circuit (2) for operating the air conditioner (1) in a heat-pump mode. The invention additionally relates to a method for switching between the two heat-pump modes.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 20, 2014
    Inventors: Engelbert Schmitz, Peter Heyl, Christian Rebinger, Dirk Schroeder, Hans Hammer, Martin Rene Hoetzel
  • Publication number: 20130031922
    Abstract: The invention includes a refrigerant circuit for a cooling operation and a heat pump operation. The refrigerant circuit has a high pressure area and a low pressure area, including at least one heat source/heat sink, a compressor, an expansion device, at least one thermal interior space module, and an internal heat exchanger. The internal heat exchanger has a high pressure side part and a low pressure side part, wherein the high pressure side part is disposed between the expansion device and the heat source/heat sink. The invention also includes at least one metering device through which the high pressure side part of the internal heat exchanger is operable during the heat pump operation at a medium pressure level intermediate a pressure level in the high pressure area and a pressure level in the low pressure area of the refrigerant circuit.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 7, 2013
    Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.
    Inventors: Peter Heyl, Christian Rebinger, Dirk Schroeder, Hans Hammer, Martin Hoetzel