Ford Global Technolgoies, LLC

Xiao Guang Yang

Theodore James Miller

James Matthew Marcicki

Xu Wang

OuJung Kwon

Patrick Daniel Maguire

Rui Wang

Harold J Haskins

Yuan Zhang

Pratima V Addepalli

Jianbo Lu

Devang Bhalchandra Dave

Connor McCann

Bogdan Bude

Feng Wu

Franco Leonardi

Robert J Kudla

Baojin Wang

Jingmei Shen

Renata Michaela Arsenault

Satish B Chikkannanavar

Ronald C Elder

Allen Joseph Gilbert

Renjie Chen

Daniel T-f Wang

Hui Huang

Zhimin Yang

Wenkui Zhang

Xianzhi Gong

Yusheng Ye

YuHong Xu

Taosheng Hu

Pratima Addepalli

Yang Xia

Liyuang Zhang

Yishun Wang

Chu Liang

Ji Qian

A traction battery assembly includes, among other things, a plurality of battery cells disposed along an axis, an endplate at an axial end of the plurality of battery cells, and a corrugated area of the endplate. The corrugated area has a plurality of corrugations that flatten to accommodate expansion of the plurality of battery cells along the axis.

Traction battery cell expansion accommodating endplate and expansion accommodating method

An electrified vehicle battery includes battery cells each having a container including a first jelly roll electrically connected to a second jelly roll by a fusible link with the first and second jelly rolls and the fusible link being disposed within the container and battery terminals electrically connected to the first jelly roll and extending from the container. The fusible link may be formed by a connector having a reduced cross-sectional area, which may correspond to one or more apertures extending through the connector. The fusible link may be coated with a ceramic material.

Electrified vehicle battery having cells with internal fusible links

Embodiments disclose a disposable protective assembly apparatus for a dental syringe body of a dental syringe. The apparatus is a combination of a disposable syringe tip and a disposable protective sleeve, the sleeve being pre-attached to the syringe tip, and the sleeve being in a pre-folded position to be quickly and easily slid over the dental syringe prior to a dental operation.

Disposable protective assembly apparatus for a dental syringe

A vehicle includes an electric machine, a battery, an electrical circuit, an overcharge limit device, and a controller. The electric machine is configured to propel the vehicle. The battery has a plurality of cells and is configured to provide electrical power to the electric machine. The electrical circuit is configured to deliver the electrical power from the battery to the electric machine. The overcharge limit device is configured to individually disconnect each of the plurality cells from the circuit in response to an internal pressure of a respective cell exceeding a pressure threshold. The controller is programmed to, in response to detecting a first set of parameters that are indicative of a first of the cells being disconnected from the electrical circuit via the overcharge limit device, discontinue control the first of the cells.

Battery control system for a hybrid or electric vehicle

Methods and system are described for estimating an amount of battery usage for a traction battery of a vehicle. The traction battery usage estimate may be based on or a function of a distance per gallon of gasoline-equivalent so that the usage estimate may be more familiar to vehicle operators. In addition, the traction battery usage estimate may also be based on traction battery current and traction battery voltage.

System and method for quantifying battery usage

A vehicle includes a traction battery having a plurality of battery cells and a balance circuit configured to selectively discharge one or more of the battery cells. A controller is programmed to estimate charge capacities of the battery cells and determine a standard deviation of the estimated capacities. The controller is further programmed to determine a skewness of the estimated capacities. The controller is also programmed to, in response to the skewness exceeding a first threshold, command the balance circuit to discharge one or more of the battery cells when a state of charge (SOC) of the traction battery is less than a second threshold, and, in response to the skewness being less than the first threshold, command the balance circuit to discharge one or more of the battery cells when the SOC of the traction battery is greater than the second threshold.

Balancing cells of a traction battery using statistical analysis

A vehicle includes an electric machine, a battery, and a controller. The electric machine is configured to deliver power to wheels to drive the vehicle. The battery has an array of cells that are configured to deliver electrical power to the electric machine. The controller is programmed to, in response to a charge imbalance within the array of cells, simultaneously discharge a number of cells within the array based on a temperature of the controller.

Battery cell rebalancing method

An electrified vehicle includes a traction battery that is operated according to a state of charge of the traction battery. A controller is programmed to operate the traction battery according to the state of charge of the traction battery and, in response to completion of a charge cycle of the traction battery, generates an adaptive relaxation time and an adaptive compensation voltage of the state of charge that changes with a temperature and a charge rate of the traction battery. The controller is further programmed to, in response to expiration of the adaptive relaxation time after completion of the charge cycle, update the state of charge to a value corresponding to a voltage defined by a difference between a measured voltage of the traction battery and the adaptive compensation voltage.

Adaptive open circuit voltage based soc reset method at the end of charge based on temperature and charging rate

A method controlling a battery management system is provided. The method may include commanding by a controller a heat exchanger of a vehicle to pre-cool a traction battery of the vehicle key-off responsive to the vehicle being within a predetermined range of a predicted parking location, a current temperature of the traction battery being less than a temperature threshold, and a predicted parked temperature for the traction battery being greater than the temperature threshold.

Method of operating thermal management system in electric vehicles

A method according to an exemplary aspect of the present disclosure includes, among other things, controlling a vehicle system to refine a travel range estimation of an electrified vehicle if a desired destination cannot be reached under current driving conditions. The controlling step includes warning a driver about a travel range based on the driver's driving habits, coaching the driver to modify the driving habits, and adjusting operation of at least one vehicle subsystem.

Personalized range protection strategy for electrified vehicles

A method includes controlling charging a battery pack of an electrified vehicle, via a control system of the electrified vehicle, based on climate conditions, traffic conditions, and learned driving habits of a driver of the electrified vehicle. The control system is configured to create a smart charging schedule for either adding or not adding an additional charge to the battery pack in anticipation of an expected upcoming drive cycle.

Smart charging schedules for battery systems and associated methods for electrified vehicles

A system includes contactors electrically connecting a traction battery and a vehicle bus when closed, and a controller configured to issue an over discharge alert and open the contactors responsive to a battery temperature rate of change, measured during battery discharge and while a battery state of charge (SOC) exceeds a first threshold, being greater than a predefined rate.

System and method for detecting and responding to a battery over-discharge condition within a vehicle

A method of forming a high energy density composite cathode material is disclosed. The method includes providing a lithium-rich manganese layered oxide (LRMO), coating the LRMO with a TiOprecursor, and ball-milling the TiOcoated LRMO with LiH to form a LiTiOcoated LRMO composite, wherein x is less than or equal to 1 and greater than zero.

LTO coated LRMO cathode and synthesis

A vehicle can include a traction battery and a controller in communication with the battery to determine the battery state using sensed battery electrode capacity to account for battery aging. The sensed battery electrode capacity can be dependent on active lithium ions at a positive electrode of the traction battery. The controller can compare a battery voltage model to measured battery voltage during a vehicle drive cycle, receive sensed current throughput data and open circuit voltage at the battery, and determine if a deviation threshold is exceeded. The controller can also correct electrode capacity using a mean of the measured open-circuit voltage to correct the capacity error to less than one amp-hour or initiate an active lithium capacity correction using a variance of the current throughput to correct the capacity error to less than one amp-hour. This information can be used to control the vehicle and battery usage.

Battery capacity degradation resolution methods and systems

A lithium-sulfur battery cell includes a lithium anode and a carbon-sulfur cathode including a sulfur-impregnated carbon nanostructure defined by one or more layers of elementally doped nanoporous carbon arranged on one or more carbon nanotubes.

Growing community of inventors

Northville, MI, United States of America

Xiao Guang Yang