Abstract: The invention relates to an electronics card (1) comprising a printed circuit board (2) and a piece of equipment (3) such as a motor or a loudspeaker fastened to said printed circuit board (2). The piece of equipment (3) is fastened to a face (4) of the printed circuit board (2) by snap-fastening in metal clips (6, 7) that project from said face (4), each clip (6, 7) having a first end (8, 9) fastened to said face (4) of the printed circuit board (2) by soldering, and a second end (11, 12) bearing resiliently on a corresponding portion of the piece of equipment (3) for holding it pressed against said face (4) of the printed circuit board (2). The invention applies in particular to electronics cards for motor vehicles.

Abstract: An extremum seeking control method optimizes a control process for a plant such as an air handling unit. The method compensates for abrupt changes in the operation of the plant by resetting the extremum seeking control strategy in response to a detection of the abrupt change.

Abstract: An extremum seeking control method optimizes a control process for a plant such as an air handling unit. The method improves the performance of an extremum seeking control strategy by limiting, removing or preventing the effects of an actuator saturation condition, particularly as the extremum seeking control strategy relates to HVAC applications.

Abstract: A method is provided for connecting an in-vehicle communication system to a plurality of wireless communication networks, including a mobile telephony network and an internet protocol network. The in-vehicle communication system is configured to roam between the plurality of wireless communication networks, wherein the method includes the step of receiving a first wireless communication signal from one of the plurality of wireless communication networks. The method also includes the step of detecting a second wireless communication signal from a second of the plurality of wireless communication networks. The method further includes the step of determining an intensity level of the first and second wireless communication signals. The method further includes the step of switching the in-vehicle communication system to one of the plurality of wireless communication networks based on the intensity level of the first and second wireless communication signals.

Abstract: A drive system for a compressor of a chiller system includes a variable speed drive. The variable speed drive is arranged to receive an input AC voltage at a fixed AC input voltage and provide an output AC power at a variable voltage and variable frequency. The variable speed drive includes a converter connected to an AC power source providing the input AC voltage. The converter is arranged to convert the input AC voltage to a DC voltage. A DC link is connected to the converter. The DC link filters and stores the DC voltage from the converter. An inverter is connected to the DC link. A motor connectable to the compressor for powering the compressor. An active filter connected in parallel with the motor. The active filter is arranged to generate high frequency currents having a magnitude and opposite polarity, with respect to the output AC power of the variable speed drive. The high frequency currents generated by active filter substantially cancel out high frequency currents flowing into the motor.

Abstract: A lighting device is disclosed that is configured for mounting in or on a motor vehicle. The lighting device comprises a light guiding element and a light source. The light guiding element has a light entry face and a light exit face. A depth of the lighting device perpendicular to the light exit face corresponds essentially fully to the depth of the light guiding element.

Abstract: A building automation control system for use in a building having an IT network includes at least one BAS controller connected to the IT network and at least one BAS device located within the building and connected to the at least one BAS controller through the IT network. Further the system may be configured to use standards-based IT technologies over the IT network to manage the at least one BAS device. The standards-based IT technologies may include DHCP to obtain IP addresses and network parameters of the BAS devices, DNS to provide a mechanism for associating the BAS devices with human-friendly names, a distributed mechanism for storing the names, and a method for locating the BAS devices by resolving names and IP addresses, SNTP to synchronize time on the BAS devices, SNMP to monitor the BAS devices and report alarms, SMTP for delivery of e-mail alarms, web-services to provide Internet-friendly communications, and standards-based IT security mechanisms to protect software of the BAS devices.

Abstract: An air purification device for a vehicle comprises an air inlet, an air outlet, and an air conduction volume between the air inlet and the air outlet. At least one reaction surface element is provided in the air conduction volume. At least one light source for ultraviolet light is arranged in the air conduction volume. A surface of the reaction surface element comprises a catalytic material, and the reaction surface element is arranged substantially in the entire air conduction volume or occupies at least 50% of the inner surface of the air purification device.

Abstract: A vehicle headrest comprises means for retaining the headrest on the backrest as a vehicle seat. The headrest is adjustable vertically (Z-direction) in a reversible manner relative to the backrest, and at least partially with regard to its distance from the head of a seat occupant (X-direction). Such adjustments are carried out at least temporarily at the same time.

Abstract: A system and method for controlling dust and/or odors comprises a blower unit and baffle member deployed downstream of the blower unit. The blower unit comprises a fan propelled mister with a discharge tube and a fan disposed in the discharge tube adapted for drawing air into the discharge tube and creating a high velocity air flow exiting therefrom. The discharge tube has a plurality of nozzles and a fluid source is placed in communication with the nozzles such that the nozzles discharge fluid particles that are entrained in a high velocity air flow exiting from the discharge tube distal end. A baffle member is deployed downstream of the blower unit at an elevation above the blower unit so as to alter a flow path of ambient air flowing through a discharge path of the blower unit.

Abstract: A method for training a trainable RF transmitter to transmit variable code signals used to actuate a remote device having a receiver where the transmitter includes a memory that has stored variable code characteristics for a plurality of different remote devices includes initiating a training sequence and generating at least one RF carrier signal having the variable code characteristics associated with one remote device of the plurality of different remote devices. The method further includes transmitting the at least one RF carrier signal to the receiver of the remote device and repeating the generating and transmitting steps for the variable code characteristics of each remote device in the plurality of different remote device until feedback is received from a user that the remote device is activated. Upon receiving an indication that the remote device is activated, the transmitter stores an identifier of the variable code characteristics that activated the remote device.

Abstract: Provided is a system for managing a lithium battery system having a plurality of cells. The battery system comprises a variable-resistance element electrically connected to a cell and located proximate a portion of the cell; and a device for determining, utilizing the variable-resistance element, whether the temperature of the cell has exceeded a predetermined threshold. A method of managing the temperature of a lithium battery system is also included.

Abstract: Systems and methods for improved VSDs are provided. One embodiment relates to an apparatus for common mode and differential mode filtering for motor or compressor bearing protection when operating with VSDs, including conducted EMI/RFI input power mains mitigation. Another embodiment relates to a method to extend the synchronous operation of an Active Converter to the AC mains voltage during complete line dropout. Another embodiment relates to an Active Converter-based Variable Speed Drive system with Improved Full Speed Efficiency.

Abstract: Screw chillers have economizer systems that include a low pressure economizer and a high pressure economizer. According to certain embodiments, the low pressure economizer includes a flash tank, an expansion device and a flow control valve while the high pressure economizer includes a heat exchanger and an expansion device. The screw chillers also include a screw compressor that compresses refrigerant. The screw compressor includes a low pressure economizer port designed to receive lower pressure refrigerant from the flash tank within the low pressure economizer and a high pressure economizer port designed to receive higher pressure refrigerant from the heat exchanger within the higher pressure economizer. The screw compressor is designed to compress the refrigerant received from the evaporator, the refrigerant received through the low pressure economizer port, and the refrigerant received through the high pressure economizer port and to discharge the refrigerant through a common discharge.