Gm Global Technolgoy Operations, Inc.

Michelle H Wiebenga

Anil Bika

Wei Ping Li

Derek F Lahr

Rashmi Prasad

Gongshin Qi

Anthony M Coppola

Fang Dai

Chang H Kim

Lei Wang

Ryan Gergely

Eugene Victor Gonze

Mark William Verbrugge

Norman Joseph Weigert

Anthony L Smith

David Brian Brown

Rahul Mital

Chang Han Kim

Igor Anilovich

Charles W Wampler, Ii

Chaitanya Sankavaram

Shouxian Ren

Vincent J Tylutki

Grant L Meade

Rasoul Salehi

Thomas R Brown

Andrew J Galant

Wei Li

Daniel Demitrish

William Osad

A battery cell monitoring system includes: a battery cell including an electrode stack disposed within a case; a gas sensor disposed within, attached to or connected to the case and configured to detect levels of one or more gases within the case; and a gas monitoring circuit connected to the gas sensor. The gas monitoring circuit includes: a memory that stores data collected from the gas sensor; a transceiver configured to transfer the data to a network device separate from the battery cell; and a control module that monitors the levels of one or more gases and based on the levels of the one or more gases detects (i) an issue with the battery cell during operative use of the battery cell, (ii) an issue with the battery cell during formation of the battery cell, or (iii) completion of a formation operation of the battery cell.

In-situ gas detection and monitoring of battery cells during formation and intended use

A battery monitoring system includes a carbon dioxide sensing system configured to selectively measure carbon dioxide concentrations within a plurality of battery cells, respectively, that are connected in parallel. A controller is configured to detect cathode overpotential in the plurality of battery cells in response to the measured carbon dioxide concentrations of the plurality of battery cells.

Battery monitoring system for measuring carbon dioxide to detect imbalance in a group of parallel lithium-ion battery cells

Presented are control systems for operating rechargeable electrochemical devices, methods for making/using such systems, and vehicles with intelligent battery charging and charging behavior feedback capabilities. A method of operating a rechargeable battery includes an electronic controller receiving battery data from a battery sensing device indicative of a battery state of charge (SOC). Using this battery data, the controller determines a number of low SOC excursions at which the battery SOC is below a predefined low SOC threshold and a number of high SOC excursions at which the battery SOC exceeds a predefined high SOC threshold. The controller then determines if the number of low SOC excursions exceeds a predefined maximum allowable low excursions and/or the number of high SOC excursions exceeds a predefined maximum allowable high excursions. If so, the controller responsively commands a resident subsystem to execute a control operation that mitigates degradation of the rechargeable battery.

Intelligent motor vehicles and control logic for managing charging of traction battery packs

A smart trailer coupler system includes a ball mount connectable to a vehicle, a hitch ball mechanically connected to the ball mount, a coupler selectively connectable to the hitch ball, and at least one sensor mounted to one of the ball mount, the hitch ball and the coupler. The at least one sensor detects a size compatibility between the coupler and the hitch ball. A signal system is operatively connected to the at least one sensor. The signal system provides at least one of a visual alert and an audible alert of the size compatibility between the hitch ball and the coupler.

Smart trailer coupler system

Systems and methods are provided for thermal control using vascular channels. Vascular channels are incorporated in a network within a component. The component is a part of a manufactured environment configured for occupants. A fluid circuit is connected with the vascular channels and circulates a fluid through the component to alter a thermal state of the component.

Vascular structures and methods for thermal control

A method for exhaust aftertreatment includes determining a diagnostic condition with respect to a threshold diagnostic condition, determining an SCR efficiency as a ratio of a readout of a first NOx sensor at a first NOx sensing position with respect to a readout of a second NOx sensor at a second NOx sensing position, the first NOx sensing position located about an engine out area within an exhaust stream before a DOC and the second NOx sensing position located about an output of an SCR device within the exhaust stream; and comparing the SCR efficiency to a threshold SCR efficiency range. If the SCR efficiency is less than the threshold SCR efficiency range, then trigger DOC failure for NO oxidation, and if the SCR efficiency is greater than or equal to the threshold SCR efficiency range, then DOC is determined to be operating within specifications.

Exhaust aftertreatment system and doc NO2 generation on-board diagnostics method

A method for monitoring and diagnosing an engine exhaust treatment of an internal combustion engine in a motor vehicle includes monitoring a nitrogen oxides (NOx) storage catalyst disposed in an engine exhaust stream downstream of the engine, determining a first diagnostic condition of the NOx storage catalyst based on data from a first EGT sensor and a second EGT sensor; determining a second diagnostic condition of the NOx storage catalyst based on a comparison of temperatures reported by a first NOx sensor and a second NOx sensor, selectively pausing the first diagnostic condition and the second diagnostic condition during a predetermined NOx storage catalyst regeneration period, and selectively generating a notification for an operator of the motor vehicle.

NOx storage catalyst monitoring methods

Systems and methods are provided for heat management using vascular channels. Vascular channels are incorporated in a network within a component. The component is a part of a manufactured product and defines an exterior panel. A fluid circuit is connected with the vascular channels and circulates a fluid through the component to collect heat from the product and to dissipate heat through the exterior panel.

Vascular structures and methods for heat management

A method for diagnosing an Oxidation Catalyst (OC) device of an exhaust gas treatment system is provided. The method monitors a differential temperature across the OC device. The method determines whether the differential temperature reveals a temperature spike. The method determines that the OC device operates properly in response to determining that the differential temperature reveals a temperature spike.

Diagnosing oxidation catalyst device with hydrocarbon storage

A palladium-only (i.e., platinum free) oxidation catalyst body is used to oxidize carbon monoxide and hydrocarbons in the exhaust stream of a diesel engine powered vehicle, which is operated at a fuel-lean air-to-fuel ratio (A/F) for much of the time it powers a vehicle. Periodically, a recent history of the temperatures of the exhaust gas at the inlet to the palladium oxidation catalyst body is prepared in a computer control module. And a recent history of the A/F of the operating engine is considered. These temperature and A/F values are then used in determining whether the engine should be temporarily operated in a fuel-rich or stoichiometric A/F mode to provide an exhaust gas composition suitable for rejuvenation of the palladium by reducing its oxide formed during lean operation of the engine.

Rejuvenation control of palladium-only diesel oxidation catalyst

A method for preparing a catalyst includes preparing a first solution including a gold precursor and a palladium precursor, preparing an alumina suspension, heating the alumina suspension to a preferred temperature range, introducing the first solution to the alumina suspension and coincidently maintaining the pH of a resulting solution at a preferred pH level, separating solids in the resulting solution, and calcining the separated solids to form a catalyst including gold and palladium co-deposited onto alumina.

Growing community of inventors

Farmington Hills, MI, United States of America

Michelle H Wiebenga