Charles Andrew Archibald

US Patent:

6588222, Jul 8, 2003

Filed:

Oct 9, 2002

Appl. No.:

10/267968

Inventors:

Thomas Martin Urbank - Lockport NY
Karma Vir Sangwan - East Amherst NY
Charles Andrew Archibald - Lockport NY
James Joseph Christen - Lockport NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F25B 4900

US Classification:

62127, 622283

Abstract:

An energy-efficient vehicle air conditioning system includes a variable capacity refrigerant compressor having a capacity control valve with integral refrigerant sensors and control circuitry, and a driver interface panel for selecting the discharge air temperature and inlet air source, and for selecting either a normal control mode or an energy-efficient control mode. When the energy-efficient control mode is selected, control setting indicators prompt the driver to request full-cold discharge air temperature and recirculated cabin air, and the control circuitry initiates a compressor capacity control based on the refrigerant sensor information and a measure of the outside air temperature to produce a suitable discharge air temperature at a reduced power consumption level.

US Patent:

6622500, Sep 23, 2003

Filed:

Oct 9, 2002

Appl. No.:

10/267709

Inventors:

Charles Andrew Archibald - Lockport NY
Karma Vir Sangwan - East Amherst NY
Thomas Martin Urbank - Lockport NY
James Joseph Christen - Lockport NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F25B 100

US Classification:

62173, 622283

Abstract:

An energy-efficient air conditioning control method regulates the capacity of a variable capacity refrigerant compressor based on the compressor suction and discharge pressures and a measure of the ambient temperature. A target suction pressure is selected based on the ambient temperature and the sensed discharge pressure, and the capacity of the compressor is adjusted as required to attain the target suction pressure. In a first embodiment of the control method, the ambient temperature is used to select a target evaporator outlet air temperature, which is used along with the sensed discharge pressure to select the target suction pressure, while in a second embodiment of the control method, the target suction pressure is selected directly on the basis of the ambient temperature and the sensed discharge pressure.

US Patent:

6627851, Sep 30, 2003

Filed:

Dec 7, 2001

Appl. No.:

10/011105

Inventors:

Karma Vir Sangwan - East Amherst NY
Thomas Martin Urbank - Lockport NY
Charles Andrew Archibald - Lockport NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

H05B 102

US Classification:

219203, 219497, 219494, 340602

Abstract:

An improved method of electric window heater activation automatically and independently activates front and rear window heaters at a variable level based on the respective potential of fogging, within the ability of the vehicle electrical system to supply the requested current without discharging the storage battery. A defog controller develops front and rear fog factors indicative of the relative potential of fogging, and activates the respective electric heaters as required to drive the respective fog factor to zero. The fog factors are based on an estimate of the cabin air dewpoint temperature, the temperature of the respective window surfaces, and a temperature interval over which the fog factor signals only partial activation of the respective heater. The temperature interval is biased in a direction to provide preventative activation of the heaters at a relatively low level when the electrical power requirement is limited, and the activation level is limited as required to prevent battery discharging.

US Patent:

6672085, Jan 6, 2004

Filed:

Oct 24, 2002

Appl. No.:

10/280033

Inventors:

Karma Vir Sangwan - East Amherst NY
Thomas Martin Urbank - Lockport NY
Charles Andrew Archibald - Lockport NY
John F. Wurster - Irving NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

B60H 132

US Classification:

62133, 623234, 62126, 62129, 62131, 62230

Abstract:

A control method for a motor vehicle HVAC system categorizes potentially conflicting override commands for at least one control parameter in order to assign a priority of control. Override commands are categorized as being related to occupant safety, vehicle safety or occupant comfort. Highest priority is assigned to override commands categorized as being related to occupant safety, second-highest priority is assigned to override commands categorized as being related to vehicle safety, and third-highest priority is assigned to override commands categorized as being related to occupant comfort. An HVAC controller carrying out the control method then regulates the control parameter in accordance with the override command that has been assigned the highest priority.

US Patent:

6691523, Feb 17, 2004

Filed:

Oct 24, 2002

Appl. No.:

10/279324

Inventors:

Karma Vir Sangwan - East Amherst NY
Charles Andrew Archibald - Lockport NY
Ronald Joseph Goubeaux - Lockport NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

B60H 132

US Classification:

62133, 622285

Abstract:

An improved compressor capacity control method selectively overrides a normal capacity control during periods of vehicle acceleration to reduce engine exhaust emissions. The capacity override is invoked when the rate of engine throttle movement exceeds a predefined rate, provided that the load imposed by the compressor is sufficiently high and the vehicle speed is greater than a minimum value. Once invoked, the override reduces the compressor capacity to a predetermined level, and measures the elapsed time. The override is maintained for at least a minimum time period that ensures an emission benefit, after which the vehicle speed is monitored to determine the extent of the acceleration. The override is terminated when the rate of increase in vehicle speed falls below a reference rate, or when the elapsed time exceeds a reference time, whichever occurs first.

US Patent:

6698663, Mar 2, 2004

Filed:

Dec 4, 2002

Appl. No.:

10/310167

Inventors:

Mingyu Wang - Amherst NY
Charles Andrew Archibald - Lockport NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F24F 700

US Classification:

236 493, 62229, 703 8

Abstract:

Optimized control algorithms for a vehicle automatic climate control system (ACCS) are developed using math-based models of the vehicle, the ACCS and a vehicle occupant. The models are cross-coupled in closed-loop fashion with feedback from both vehicle systems and occupant. A first feedback loop including the vehicle and the ACCS, simulates how the ACCS interacts with the cabin environment; and a second feedback loop including the vehicle, the ACCS and the occupant, simulates how the occupant will adjust the ACCS to optimize comfort. When the system arrives at a control algorithm that satisfies control objectives and optimizes occupant comfort, an auto-code generation tool is used to create program code directly from the control model, which may be downloaded into a test vehicle for final system confirmation and calibration.

US Patent:

6732938, May 11, 2004

Filed:

Mar 19, 2003

Appl. No.:

10/391873

Inventors:

Mingyu Wang - Amherst NY
Charles Andrew Archibald - Lockport NY
John M. Kirchberger - Gasport NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F24F 700

US Classification:

236 493, 236 78 D

Abstract:

A motor vehicle automatic climate control determines HVAC parameter values for satisfying the required heating or cooling effort for steady-state cabin air temperature regulation, and controls the HVAC settings based such parameter values and on the deviation of the cabin air temperature (T ) from the set temperature (TSET). If T is within a specified control band about TSET, the HVAC settings are controlled in accordance with the determined HVAC parameter values, but when T overshoots or undershoots the control band, the control enters a quasi-steady-state mode in which the control parameters are reset to drive T back in to the control band, and then brought into correspondence with the respective determined values based on the degree to which the overall control objective of regulating T at TSET is achieved.

US Patent:

6732939, May 11, 2004

Filed:

Mar 19, 2003

Appl. No.:

10/392010

Inventors:

Mingyu Wang - Amherst NY
Charles Andrew Archibald - Lockport NY
John M. Kirchberger - Gasport NY

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F24F 700

US Classification:

236 493, 236780

Abstract:

A motor vehicle automatic climate control computes the HVAC power requirement for cabin air temperature regulation, and determines corresponding air discharge temperature and blower motor speed commands using a two-step table look-up procedure. Nominal air discharge temperature and blower motor speed profiles are tabulated as a function of a Power Index generally corresponding to ambient temperature, and used along with the set temperature to form a table of HVAC power requirement vs. Power Index. In vehicle operation, the HVAC power requirement vs. Power Index table is used to retrieve a Power Index corresponding to the computed HVAC power requirement, and the air discharge temperature and blower motor speed tables are then used to retrieve air discharge temperature and blower motor speed commands based on the retrieved Power Index.