Patents by Inventor Richard Dyche Anderson
Richard Dyche Anderson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140277866Abstract: A vehicle having a battery pack with cells grouped into subsets and at least one controller programmed to charge and discharge the battery pack is disclosed. A control output is generated based on a pack state of charge derived from each cell's initial state of charge at vehicle activation and an electric charge accumulated or spent by less than all of the cells of each of the subsets since vehicle activation. A method of estimating battery pack state of charge is disclosed in which a pack state of charge is calculated by identifying subsets of cells having similar properties and calculating an electric charge accumulated or spent for fewer than all of the cells of each subset. A cell state of charge is calculated for all cells based on an average electric charge accumulated or spent. The pack state of charge is based on all the cell states of charge.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yonghua Li, Richard Dyche Anderson, Xu Wang
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Publication number: 20140249708Abstract: An electric vehicle includes a controller configured to estimate battery capacity in accordance with a first state of charge estimation, a charge integration, and a second state of charge estimation. The first and second state of charge estimations are in accordance with time and temperature constraints and are such that the estimated battery capacity has limited uncertainty. The controller is further configured to generate an output based on the estimated battery capacity.Type: ApplicationFiled: May 10, 2014Publication date: September 4, 2014Applicant: Ford Global Technologies, LLCInventors: Yonghua Li, Richard Dyche Anderson
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Patent number: 8751086Abstract: An electric vehicle includes a controller configured to estimate battery capacity in accordance with a first state of charge estimation, a charge integration, and a second state of charge estimation. The first and second state of charge estimations are in accordance with time and temperature constraints and are such that the estimated battery capacity has limited uncertainty. The controller is further configured to generate an output based on the estimated battery capacity.Type: GrantFiled: August 21, 2012Date of Patent: June 10, 2014Assignee: Ford Global Technologies, LLCInventors: Yonghua Li, Richard Dyche Anderson
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Patent number: 8698348Abstract: A system and method for managing a power source in a vehicle that has an engine and an electric machine operable to provide torque to start the engine, includes the step of setting a first discharge power limit for the power source that is at least partly based on the power capability of the power source. A second discharge power limit for the power source is also set. The second discharge power limit is higher than the first discharge power limit, and it is a function of at least the power capability of the power source and the first discharge power limit.Type: GrantFiled: January 10, 2011Date of Patent: April 15, 2014Assignee: Ford Global Technologies, LLCInventors: Jing Song, Richard Dyche Anderson, Douglas A. Oliver, Scott James Thompson
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Publication number: 20140058595Abstract: An electric vehicle includes a controller configured to estimate battery capacity in accordance with a first state of charge estimation, a charge integration, and a second state of charge estimation. The first and second state of charge estimations are in accordance with time and temperature constraints and are such that the estimated battery capacity has limited uncertainty. The controller is further configured to generate an output based on the estimated battery capacity.Type: ApplicationFiled: August 21, 2012Publication date: February 27, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yonghua LI, Richard Dyche Anderson
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Publication number: 20130278223Abstract: A battery controller with monitoring logic for a model-based battery control of a battery performs battery current characterizing, parameter and state variable abnormality detection, and bound checking of error signals between measured and predicted output variables to generate an output. Switching between closed-loop operation (i.e., the model-based battery control) and open-loop operation (i.e., a traditional battery control) is done based on the output of the monitoring logic such that closed-loop stability and performance are reasonably guaranteed.Type: ApplicationFiled: April 20, 2012Publication date: October 24, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yonghua Li, Richard Dyche Anderson, Anthony Mark Phillips, Xu Wang
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Patent number: 8525480Abstract: A method and a system for charging a battery in hybrid vehicles and electric vehicles are provided. An amount of energy consumption for charging a battery is calculated by taking the sum of a first amount of energy for charging a high voltage battery and a second amount of energy for use by a low voltage auxiliary system during charging. An optimal charge current for a charger is determined based on a charging option. The charging option provides a set of desired charging parameters for a charger controller. A state of charge of the battery is determined within a state of charge range. The charger controller provides a charge current to the battery. The charge current is the optimal charge current up to a maximum charge current for the state of charge range of the battery.Type: GrantFiled: December 28, 2010Date of Patent: September 3, 2013Assignee: Ford Global Technologies, LLCInventor: Richard Dyche Anderson
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Patent number: 8400112Abstract: A method for managing power limits for a battery includes the step of increasing a minimum operating state of charge after an initial power capability has decreased to the point where a predefined full discharge power is not available at an initial minimum operating state of charge. The increased minimum operating state of charge can be chosen such that the full discharge power is available. The increased minimum state of charge may not be chosen to provide the full discharge power if the increased minimum state of charge is greater than a maximum low limit state of charge.Type: GrantFiled: November 10, 2010Date of Patent: March 19, 2013Assignee: Ford Global Technologies, LLCInventor: Richard Dyche Anderson
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Publication number: 20130006454Abstract: A method of controlling an electric vehicle including an internal combustion engine, a battery having a state of charge (SOC) and an open circuit voltage (OCV), includes establishing a system for estimating battery SOC. The system includes (i) a parameter estimation subsystem including a recursive parameter estimator for identifying battery parameters and (ii) an OCV estimation subsystem including a nonlinear adaptive observer for estimating battery OCV. Estimated battery OCV is related to estimated battery SOC by a mapping. An output is generated based on the estimated battery SOC.Type: ApplicationFiled: June 28, 2011Publication date: January 3, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yonghua Li, Richard Dyche Anderson, Jing Song
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Publication number: 20120175946Abstract: A system and method for managing a power source in a vehicle that has an engine and an electric machine operable to provide torque to start the engine, includes the step of setting a first discharge power limit for the power source that is at least partly based on the power capability of the power source. A second discharge power limit for the power source is also set. The second discharge power limit is higher than the first discharge power limit, and it is a function of at least the power capability of the power source and the first discharge power limit.Type: ApplicationFiled: January 10, 2011Publication date: July 12, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Jing Song, Richard Dyche Anderson, Douglas A. Oliver, Scott James Thompson
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Publication number: 20120179435Abstract: A method for determining a power capability for a battery includes the step of defining at least one equation based on a circuit model for the behavior of the battery. The equation includes a plurality of battery parameters, including a battery current. The value of at least one of the battery parameters is measured, and the battery current is solved-for from the at least one equation. A limiting battery current is defined based at least in part on the battery current. A limiting battery voltage is determined, and the power capability of the battery is determined based on the limiting battery current and the limiting battery voltage.Type: ApplicationFiled: January 10, 2011Publication date: July 12, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Jing Song, Richard Dyche Anderson, Yonghua Li, Yanan Zhao, Xiao Guang Yang
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Publication number: 20120161698Abstract: A method and a system for charging a battery in hybrid vehicles and electric vehicles are provided. An amount of energy consumption for charging a battery is calculated by taking the sum of a first amount of energy for charging a high voltage battery and a second amount of energy for use by a low voltage auxiliary system during charging. An optimal charge current for a charger is determined based on a charging option. The charging option provides a set of desired charging parameters for a charger controller. A state of charge of the battery is determined within a state of charge range. The charger controller provides a charge current to the battery. The charge current is the optimal charge current up to a maximum charge current for the state of charge range of the battery.Type: ApplicationFiled: December 28, 2010Publication date: June 28, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Richard Dyche Anderson
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Patent number: 8159188Abstract: A method for managing power limits for a battery includes the step of increasing a minimum operating state of charge after an initial power capability has decreased to the point where a predefined full discharge power is not available at an initial minimum operating state of charge. The increased minimum operating state of charge can be chosen such that the full discharge power is available. The increased minimum state of charge may not be chosen to provide the full discharge power if the increased minimum state of charge is greater than a maximum low limit state of charge.Type: GrantFiled: March 9, 2011Date of Patent: April 17, 2012Assignee: Ford Global Technologies, LLCInventor: Richard Dyche Anderson
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Publication number: 20110156657Abstract: A method for managing power limits for a battery includes the step of increasing a minimum operating state of charge after an initial power capability has decreased to the point where a predefined full discharge power is not available at an initial minimum operating state of charge. The increased minimum operating state of charge can be chosen such that the full discharge power is available. The increased minimum state of charge may not be chosen to provide the full discharge power if the increased minimum state of charge is greater than a maximum low limit state of charge.Type: ApplicationFiled: March 9, 2011Publication date: June 30, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Richard Dyche Anderson
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Publication number: 20110140668Abstract: A method for managing power limits for a battery includes the step of increasing a minimum operating state of charge after an initial power capability has decreased to the point where a predefined full discharge power is not available at an initial minimum operating state of charge. The increased minimum operating state of charge can be chosen such that the full discharge power is available. The increased minimum state of charge may not be chosen to provide the full discharge power if the increased minimum state of charge is greater than a maximum low limit state of charge.Type: ApplicationFiled: November 10, 2010Publication date: June 16, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Richard Dyche Anderson