| COBASYS, LLC Patent applications |
| Patent application number | Title | Published |
|---|
| 20130101892 | FUSIBLE LINK TO CONNECT BATTERY CELLS AND MODULES - A first battery includes a first and terminals having first and second reference potentials, respectively. A second battery includes a third and fourth terminals having a third and fourth reference potentials, respectively. A bus bar comprises: a first terminal contactor portion that is electrically conductive and that directly contacts one of the first and second terminals of the first battery; a second terminal contactor portion that is electrically conductive and that directly contacts one of the third and fourth terminals of the second battery; and a connecting portion that is electrically conductive, that is electrically connected between the first terminal contactor portion and the second terminal contactor portion, and that creates an open circuit between the first and second terminal contactor portions in response to current flow through the connecting portion that is greater than a predetermined current for at least a predetermined period. | 04-25-2013 |
| 20130099765 | MODULAR BATTERY DISCONNECT UNIT - A system according to the principles of the present disclosure includes a battery disconnect unit (BDU) and a cartridge. The BDU includes a first positive terminal, a first negative terminal, a second positive terminal, a second negative terminal, a first current path, a second current path, a first switch, and a second switch. The first current path is between the first positive terminal and the second positive terminal. The second current path is between the first negative terminal and the second negative terminal. The first switch is disposed in the first current path. The second switch is disposed in the second current path. The cartridge includes a first terminal, a second terminal, and a current path between the first terminal and the second terminal. The first terminal is configured to connect to one of the terminals on the BDU. | 04-25-2013 |
| 20130095360 | BATTERY CELL WITH INTEGRATED MOUNTING FOOT - A battery cell according to the principles of the present disclosure includes a cell housing and a mounting member that is fixed to an outer surface of the cell housing. In one example, the mounting member is formed separate from the cell housing and attached to the outer surface of the cell housing. In another example, the mounting member is unitarily formed with the cell housing and protrudes from a planar surface of the cell housing. | 04-18-2013 |
| 20130093427 | WELDED CONTACTOR CHECKING SYSTEMS AND METHODS - A system includes a plurality of batteries, first and second relays, a relay control module, and a welding indication module. The batteries are electrically connected and collectively output power for an electric motor via first and second nodes. The first relay is connected between a first output of the batteries and the first node. The second relay is connected between a second output of the batteries and the second node. The relay control module controls the first and second relays. The welding indication module commands the relay control module to open the first relay during a diagnosis period, commands the relay control module to close the second relay during the diagnosis period, and indicates whether the first relay is welded closed based on a voltage between the first and second nodes during the diagnosis period. | 04-18-2013 |
| 20120177971 | LOW PROFILE BATTERY PACK - A battery pack according to the present disclosure includes a first module array, a second module array, and a center channel. The first module array includes a first frame and a first cassette of battery modules disposed within the first frame. The first cassette of battery modules includes a first plurality of prismatic cells and a first plurality of module terminals. The second module array includes a second frame and a second cassette of battery modules disposed within the second frame. The second cassette of battery modules includes a second plurality of prismatic cells and a second plurality of module terminals. The center channel extends through a center of the battery pack and connects the first module array to the second module array. The first plurality of module terminals and the second plurality of module terminals are disposed adjacent to the center channel on opposite sides of the center channel. | 07-12-2012 |
| 20120177970 | FLEXIBLE BATTERY MODULE FOR PRISMATIC CELLS - A modular frame for a battery module includes: a floor that includes an electrically non-conductive material; end walls that are perpendicular to the floor and that include the electrically non-conductive material; and side walls that are perpendicular to the floor, that are perpendicular to the end walls, and that include the electrically non-conductive material. The modular frame further includes interior walls that include the electrically non-conductive material and that define: a first row of cell slots configured to receive a first plurality of prismatic cells; a second row of cell slots configured to receive a second plurality of prismatic cells; and a chamber disposed between the first and second rows of cell slots. The modular frame further includes a first and second apertures to the chamber. The first aperture is defined by the interior walls and the side walls. The second aperture is formed through one of the end walls. | 07-12-2012 |
| 20120156543 | MULTI-CELL BATTERY MODULE WITH INTEGRAL COOLING AND ASSEMBLY AIDS - A battery pack includes a frame member, first and second lithium ion cells, and an isolation plate. The frame member includes a floor, walls formed perpendicular to the floor, and an aperture defined by the walls. The frame member is formed from an electrically non-conductive plastic. The first lithium ion cell includes a first positive terminal, a first negative terminal, and a first electrically conductive housing. The first positive terminal is electrically connected to the first electrically conductive housing. The second lithium ion cell includes a second positive terminal, a second negative terminal, and a second electrically conductive housing. The second positive terminal is electrically connected to the second electrically conductive housing. The isolation plate directly contacts both the first and second electrically conductive housings and electrically isolates the first electrically conductive housing from the second electrically conductive housing. The isolation plate is formed from the electrically non-conductive plastic. | 06-21-2012 |
| 20120129024 | MODULAR BATTERY PACK SYSTEMS FOR PRISMATIC CELLS - A modular frame includes a first row of cell slots configured to receive first prismatic cells of a battery pack system. A second row of cell slots is configured to receive second prismatic cells of the battery pack system. A central interface beam is disposed between the first row of cell slots and the second row of cell slots. The central interface beam includes a first side and a second side. The first side is configured to receive terminals of the first prismatic cells. The second side opposes the first side and is configured to receive terminals of the second prismatic cells. | 05-24-2012 |
| 20100226059 | CONTACTOR ENGAGEMENT SYSTEM AND METHOD - A battery control module for a battery system includes a pulse-width modulation (PWM) module that generates N PWM signals. The battery control module also includes a contactor control module that consecutively applies the N PWM signals to close a contactor in order to connect a battery to a load. Application of a first one of the N PWM signals moves the contactor at a first velocity from an open position and application of a second one of the N PWM signals moves the contactor at a second velocity to a closed position. The first velocity is less than the second velocity. N is an integer greater than one. | 09-09-2010 |
| 20100201322 | BATTERY ANALYSIS SYSTEM - A battery analysis system includes a control module, a measurement module, and a pulse power module. The control module controls current to a battery to one of charge and discharge the battery. The measurement module determines N voltages across the battery at N times during a period when the control module controls the current and when the battery is at a predetermined temperature and a predetermined state of charge. N is an integer greater than 1. The pulse power module determines N resistances corresponding to the current and the N voltages across the battery and determines a pulse power value of the battery based on the N resistances. The pulse power value indicates a dynamic power of the battery to one of charge and discharge. | 08-12-2010 |
| 20090263705 | ISOLATION TRAY FOR A BATTERY SYSTEM - A battery assembly includes a housing and N charge storage devices within the housing. The system also includes a first tray includes a first side that includes X areas that transfer first current from electrolyte leaked from a first one of the N charge storage devices to a current detector. The tray includes a second side that insulates the housing from the electrolyte. N and X are integers greater than or equal to 1. | 10-22-2009 |
| 20090212780 | DIELECTRIC BREAKDOWN DETECTOR FOR HEV BATTERY APPLICATION - A circuit that indicates an impedance of a battery dielectric includes a signal generator module that flows a first current from a ground to a first terminal of a battery. A sensor circuit generates a signal based on a second current that flows from a second terminal of the battery through a resistance to ground. The second current includes the first current and a third current that flows to ground via an impedance presented by a battery dielectric housing. A signal conversion module generates an output signal based on the signal. The output signal represents the impedance presented by the battery dielectric housing. | 08-27-2009 |
| 20090087083 | INFRA-RED THERMAL IMAGING OF LASER WELDED BATTERY MODULE ENCLOSURE COMPONENTS - A thermal imaging system for a battery module enclosure that includes first and second battery module enclosure components between which a weld is formed includes a thermal imaging camera that focuses on the first and second battery module enclosure components within a predetermined amount of time after the weld is formed and that acquires a thermal signature. A control module includes an image processing module that receives the thermal signature and that locates a predetermined reference point in the thermal signature. An image comparison module receives the thermal signature and uses the predetermined reference point to compare the thermal signature to a template signature in order to verify structural integrity of the weld. The image comparison module computes a relative measure of deviation of the thermal signature from the template signature and identifies the weld as defective when the relative measure of deviation is greater than a predetermined value. | 04-02-2009 |
| 20080318117 | Battery assembly including an electrolyte management system - A battery assembly may include a battery and a battery housing. The battery may include an electrolyte vent to provide a pressurized electrolyte discharge during an electrolyte discharge event. The battery housing may contain the battery and may include an electrolyte control member to dissipate energy from and inhibit dispersion of the pressurized electrolyte discharge from the electrolyte vent during the electrolyte discharge event. | 12-25-2008 |
| 20080299446 | Coolant manifold - A battery assembly may include a cooling system assembly having first and second battery modules and a coolant manifold in fluid communication therewith. The first battery module may include a first coolant flow path and the second battery module may include a second coolant flow path. The coolant manifold may include first and second ports and a main body portion to provide expansion and contraction between the first and second ports. The first port may be in communication with the first flow path and the second port may be in communication with the second flow path. | 12-04-2008 |
