Abstract: The invention relates to a method for operating an air conditioning system for a vehicle including the steps of: calculating a water collection quantity in an evaporator during the operating period of a cooling mode of the air conditioning system, calculating a quantity of drainage water from the evaporator, determining a quantity of water present in the evaporator at a certain point in time, and comparing the determined quantity of water in the evaporator with a predetermined limit value at the point in time of starting the vehicle or at the point in time of starting the ventilation mode of the air conditioning system. The cooling mode of the air conditioning system is activated if the limit value is exceeded and otherwise the ventilation mode of the air conditioning system is activated.

Abstract: A method for climate control for an interior of a motor vehicle includes acquiring climatically relevant data of the interior and/or surroundings of the vehicle, creating a thermodynamic model of a vehicle climate system, the model including at least one of a first thermal capacity of the interior and a first heat loss of the interior, introducing into the interior a quantity of air having a temperature different from an existing interior temperature, calculating at least one of a second thermal capacity of the interior and a second heat loss of the interior existing after the air quantity is introduced into the interior, and adapting the thermodynamic model to include at least one the second thermal capacity and the second heat loss.

Abstract: A method for climate control for an interior of a motor vehicle includes acquiring climatically relevant data of the interior and/or surroundings of the vehicle, creating a thermodynamic model of a vehicle climate system, the model including at least one of a first thermal capacity of the interior and a first heat loss of the interior, introducing into the interior a quantity of air having a temperature different from an existing interior temperature, calculating at least one of a second thermal capacity of the interior and a second heat loss of the interior existing after the air quantity is introduced into the interior, and adapting the thermodynamic model to include at least one the second thermal capacity and the second heat loss.

Abstract: A method for climate control for an interior of a motor vehicle includes acquiring climatically relevant data of the interior and/or surroundings of the vehicle, creating a thermodynamic model of a vehicle climate system, the model including at least one of a first thermal capacity of the interior and a first heat loss of the interior, introducing into the interior a quantity of air having a temperature different from an existing interior temperature, calculating at least one of a second thermal capacity of the interior and a second heat loss of the interior existing after the air quantity is introduced into the interior, and adapting the thermodynamic model to include at least one the second thermal capacity and the second heat loss.

Abstract: A method for determining relative humidity in ambient air of a motor vehicle with an air-conditioning system is provided. That method includes determining, from measurement values of ambient air temperature and the air outlet temperature of an evaporator of the air-conditioning system, the ambient air humidity. Further, that method includes measuring the air outlet temperature of the evaporator at a time at which the compressor of the air-conditioning system was switched on and then has been switched off while the air-conditioning system remains in fan mode, and also after waiting until the evaporator contains no further liquid refrigerant of the air-conditioning system but is still damp.

Abstract: The invention relates to a method for operating an air conditioning system for a vehicle including the steps of: calculating a water collection quantity in an evaporator during the operating period of a cooling mode of the air conditioning system, calculating a quantity of drainage water from the evaporator, determining a quantity of water present in the evaporator at a certain point in time, and comparing the determined quantity of water in the evaporator with a predetermined limit value at the point in time of starting the vehicle or at the point in time of starting the ventilation mode of the air conditioning system. The cooling mode of the air conditioning system is activated if the limit value is exceeded and otherwise the ventilation mode of the air conditioning system is activated.

Abstract: A vehicle has front and rear seats and an air conditioning system. There is an auxiliary control accessible from the rear seat for adjusting the air conditioning system. A rear entry door has a child locked state and a child unlocked state. There is a lock control element accessible from the front seat for setting the child locked state. The lock control element is coupled to the air conditioning system for selectably defeating the auxiliary control. Thus, the activation by a driver/parent of a rear-door child protection door lock system is also used for locking out child access to a rear air conditioning unit.

Abstract: An internal heat exchanger for an air conditioning system, having: a high pressure side through which a coolant under high pressure flows in operation; and a low pressure side through which coolant under low pressure flows in operation. The heat exchanger is configured in such a way that pulsations of the coolant flowing therethrough dampen noise.

Abstract: Various systems and methods are provided for supplying heat to a passenger compartment during a filter regeneration event. In one example, a first phase of a filter regeneration event is initiated for a filter in an internal combustion engine based on one or more parameters, with heat produced by the engine then supplied to a heater core during the first phase, and the first phase extended if heating is requested for a duration based on ambient temperature. The engine may be operated at reduced efficiency during the filter regeneration event, and in some embodiments, the method may further include injecting an additional amount of fuel during a second phase of the filter regeneration event after the first phase ends to cause soot combustion in the filter.

Abstract: A refrigerant line for carrying a mixture of refrigerant and lubrication oil. The line includes an inner casing made of a material impermeable to the refrigerant/oil mixture, an outer casing made of a material that is highly permeable to the refrigerant in its gaseous state, and an intermediate layer between the inner and outer casings made of a material that is high permeable to the gaseous refrigerant but that is able to retain the admixed oil. In this way, any oil contained in a refrigerant/oil mixture leaking through the inner casing is retained by the intermediate layer, while the refrigerant gas is allowed to escape through the outer two layers. The intermediate layer may retain the oil by absorption, by adsorption, or by binding of the oil.

Abstract: A method of optimizing usage of post-injection strategy for improved cabin comfort in a vehicle includes detecting a set of conditions corresponding to parameters pertaining to the vehicle's hardware components, driving components and operating conditions. If one or more of the set of conditions are satisfied, the method implements the post-injection strategy for the vehicle, for a pre-determined time, if the fuel-oil ratio for the engine of the vehicle is lower than a pre-determined value.

Abstract: An air conditioning method is provided. The method comprises when a refrigerant circuit is in operation and a temperature of an evaporator of the refrigerant circuit is lower than a temperature of a heat exchanger of a heating circuit, transferring heat from the heat exchanger to air passing through the heat exchanger, and when the refrigerant circuit is not in operation and the temperature of the evaporator is higher than the temperature of the heat exchanger, transferring heat from the air passing through the heat exchanger to the heat exchanger. In this way, the heat exchanger functions to augment the cooling capabilities of the evaporator.

Abstract: A vehicle has front and rear seats and an air conditioning system. There is an auxiliary control accessible from the rear seat for adjusting the air conditioning system. A rear entry door has a child locked state and a child unlocked state. There is a lock control element accessible from the front seat for setting the child locked state. The lock control element is coupled to the air conditioning system for selectably defeating the auxiliary control. Thus, the activation by a driver/parent of a rear-door child protection door lock system is also used for locking out child access to a rear air conditioning unit.

Abstract: An internal heat exchanger for an air conditioning system, having: a high pressure side through which a coolant under high pressure flows in operation; and a low pressure side through which coolant under low pressure flows in operation. The heat exchanger is configured in such a way that pulsations of the coolant flowing therethrough dampen noise.

Abstract: In an air-conditioning system for a motor vehicle, having a coolant circuit formed from a compressor for compressing the coolant, a condenser for cooling the compressed coolant, an expansion device for reducing the pressure of the coolant and an evaporator for evaporating the coolant, a control unit is provided which is connected to at least one of the coolant circuit components and which is set up to adapt an operating characteristic of the component to at least two different coolants.

Abstract: Method and apparatus for heating windows of a motor vehicle with a vehicle heating system which directs warm air onto the windows in a controlled manner, wherein the motor vehicle has electrically heated windows (in particular a front windscreen and/or a rear backlite window) and side windows without electrical heating. The warm air from the vehicle heating system is concentrated on the windows without electrical heating when the electric window heating is switched on.

Abstract: A refrigerant line for carrying a mixture of refrigerant and lubrication oil. The line includes an inner casing made of a material impermeable to the refrigerant/oil mixture, an outer casing made of a material that is highly permeable to the refrigerant in its gaseous state, and an intermediate layer between the inner and outer casings made of a material that is high permeable to the gaseous refrigerant but that is able to retain the admixed oil. In this way, any oil contained in a refrigerant/oil mixture leaking through the inner casing is retained by the intermediate layer, while the refrigerant gas is allowed to escape through the outer two layers. The intermediate layer may retain the oil by absorption, by adsorption, or by binding of the oil.

Abstract: An air conditioning method is provided. The method comprises when a refrigerant circuit is in operation and a temperature of an evaporator of the refrigerant circuit is lower than a temperature of a heat exchanger of a heating circuit, transferring heat from the heat exchanger to air passing through the heat exchanger, and when the refrigerant circuit is not in operation and the temperature of the evaporator is higher than the temperature of the heat exchanger, transferring heat from the air passing through the heat exchanger to the heat exchanger. In this way, the heat exchanger functions to augment the cooling capabilities of the evaporator.

Abstract: A method for climate control for an interior of a motor vehicle includes acquiring climatically relevant data of the interior and/or surroundings of the vehicle, creating a thermodynamic model of a vehicle climate system, the model including at least one of a first thermal capacity of the interior and a first heat loss of the interior, introducing into the interior a quantity of air having a temperature different from an existing interior temperature, calculating at least one of a second thermal capacity of the interior and a second heat loss of the interior existing after the air quantity is introduced into the interior, and adapting the thermodynamic model to include at least one the second thermal capacity and the second heat loss.

Abstract: In an air-conditioning system (10, 110, 210) for a motor vehicle, having a coolant circuit formed from a compressor (12, 112) for compressing the coolant, a condenser (14) for cooling the compressed coolant, an expansion device (16) for reducing the pressure of the coolant and an evaporator (18) for evaporating the coolant, a control unit (20) is provided which is connected to at least one of the coolant circuit components and which is set up to adapt an operating characteristic of the component to at least two different coolants.