Patent application number | Description | Published |
20080309469 | BATTERY MONITORING SYSTEM - A battery monitor for monitoring operations of a battery, such as but not limited to monitoring operations of a vehicle battery. The battery monitor may be configured to monitor current flow and battery temperature. The battery monitor may be connected to a cable used to electrically connect the battery to a number of electronic devices so that the battery monitor is located away from the battery. The battery monitor may include a processing element grounded directly to a negative pole of the battery to facilitate isolating the processing element from noise created by the electronic devices connected to the cable. | 12-18-2008 |
20110292617 | POWER MODULE WITH CURRENT SENSING - A power module operable to sense current, such as but not limited to a power module operable within a vehicle to sense current while rectifying an AC input to a DC output. The power module may include a shunt disposed relative an output of the power module to facilitate the current measurement. | 12-01-2011 |
20130106437 | INSULATION RESISTANCE MONITORING FOR VEHICLES WITH HIGH-VOLTAGE POWER NET | 05-02-2013 |
20130154672 | Method and System for Battery Current Measurement Calibration - A sensor for monitoring battery current includes a shunt and a current source. The shunt has a resistance with an actual value. The current source is configured to provide a known value of current through the shunt. A controller is configured to generate a measured value of the current through the shunt as a function of a measured value of voltage drop across the shunt caused by the current through the shunt and an assumed value of the resistance of the shunt. The controller is further configured to detect the assumed value of the resistance of the shunt as being different than the actual value of the resistance of the shunt when the known and measured values of the current differ. | 06-20-2013 |
20130154865 | Method and System for Minimizing Variation of Converter Voltage Reference - A system for minimizing variation of a voltage reference includes a voltage reference generator and a power converter. The voltage reference generator is configured to generate a voltage reference from a supply voltage. The power converter, such as a flyback converter, is configured to supply an adjustable supply voltage to the voltage reference generator. The voltage reference generator generates the voltage reference from the adjustable supply voltage. | 06-20-2013 |
20130154866 | Method and System for Monitoring for Variation of Converter Voltage Reference - A method and system include a converter such as an analog-to-digital converter (“ADC”) and a controller. The converter is configured to receive a sensor signal, indicative of a physical measured quantity, and generate an output signal based on the sensor signal and the voltage reference. The converter is further configured to alternately receive a calibration voltage in lieu of the sensor signal and generate the output signal based on the calibration voltage and the voltage reference. The controller is configured to compare the output signal based on the calibration voltage and the voltage reference with an expected value of the output signal based on the calibration voltage and an assumed value of the voltage reference to detect variation of the voltage reference, and to compensate the output signal based on the sensor signal and the voltage reference as a function of the detected variation of the voltage reference. | 06-20-2013 |
20130158904 | APPARATUS AND METHOD FOR ASSESSING THE INTEGRITY OF ANALOG-DIGITAL CONVERTER - An apparatus for determining integrity of an electronic device in a vehicle is provided. The apparatus comprises a controller operably coupled to a high voltage measuring circuit and to an analog-to-digital converter (ADC). The high voltage measuring circuit receives a high voltage signal and includes at least one stressed resistor for reducing the high voltage signal into a suitable voltage signal. The ADC performs a measurement with the suitable voltage that is indicative of the high voltage signal in a normal operation mode. The controller is configured to apply a calibrated voltage to the at least one stressed resistor in a calibration mode. The controller is further configured to calculate a resistance value of the at least one stressed resistor based on applying the calibrated voltage to the at least one stressed resistor to determine if the at least one stressed resistor is in a stressed state. | 06-20-2013 |
20130187664 | APPARATUS AND METHOD FOR DIAGNOSTICS OF A CAPACITIVE SENSOR - In at least one embodiment, an apparatus for diagnosing a state of a capacitive sensor is provided. The apparatus includes a control unit for being operably coupled to a decoupling device that exhibits a drift condition and to the capacitive sensor. The control unit being configured to determine an impedance of the capacitive sensor and to determine a characteristic of the capacitive sensor based on at least the impedance. The control unit being further configured to determine a characteristic of the decoupling device based on the characteristic of the capacitive sensor and to provide an estimated capacitance based on the characteristic of the decoupling device, the estimated capacitance being indicative of the state of the capacitive sensor. | 07-25-2013 |
20130282990 | SHARED MEMORY ARCHITECTURE - A shared memory architecture is disclosed to support operations associated with executing shared functions from a shared memory space in such a manner that separate pieces of software can execute the shared functions. | 10-24-2013 |
20140097812 | APPARATUS AND METHOD FOR AGE-COMPENSATING CONTROL FOR A POWER CONVERTER - In at least one embodiment, an apparatus for providing age-compensation control for a power converter is provided. The apparatus comprises a controller for being coupled to a power converter including a plurality of phases for converting a first input signal into a first output signal. The controller is configured to activate at least one first switch for a first phase from the plurality of phases for converting the first input signal into the first output signal. The controller is further configured to determine an aging condition for the at least one first switch for the first phase based on an equivalent time, Teq of the at least one first switch, wherein Teq corresponds to an amount of time the at least one first switch is active and on an operating temperature of the at least one first switch while the at least one first switch is active. | 04-10-2014 |