System and method for controlling a state of charge of an energy storage system
First Claim
1. A method for controlling a state of charge of an energy storage system in a vehicle having an engine and a vehicle control system, the energy storage system having a target state of charge that is adjustable from a baseline target state of charge, the method comprising:
- inputting to the vehicle control system information related to environmental conditions, including information related to a setting of a vehicle environmental control system;
inputting to the vehicle control system information related to current traveling conditions for the vehicle; and
adjusting the target state of charge from the baseline target state of charge based on at least one of the inputs to the vehicle control system, including reducing the target state of charge from the baseline state of charge when the vehicle environmental control system performs a function that forces the engine to operate.
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Abstract
A system and method for controlling the state of charge of an energy storage system examines a number of parameters to determine if a target state of charge should be adjusted. Parameters related to one or more of: a target life span of the energy storage system, driving habits of a vehicle operator, or environmental conditions are examined. The target state of charge is changed from a predetermined baseline target state of charge when the parameter values meet predetermined conditions.
29 Citations
21 Claims
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1. A method for controlling a state of charge of an energy storage system in a vehicle having an engine and a vehicle control system, the energy storage system having a target state of charge that is adjustable from a baseline target state of charge, the method comprising:
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inputting to the vehicle control system information related to environmental conditions, including information related to a setting of a vehicle environmental control system; inputting to the vehicle control system information related to current traveling conditions for the vehicle; and adjusting the target state of charge from the baseline target state of charge based on at least one of the inputs to the vehicle control system, including reducing the target state of charge from the baseline state of charge when the vehicle environmental control system performs a function that forces the engine to operate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for controlling a state of charge of an energy storage system in a vehicle having an engine, the energy storage system having a target state of charge that is adjustable from a baseline target state of charge, the method comprising:
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determining a value of at least one parameter for adjusting the target state of charge of the energy storage system, one parameter of the at least one parameter being related to the driving habits of a vehicle operator; determining whether a change in the target state of charge from the baseline target state of charge is desired based on the at least one determined parameter value; and adjusting the target state of charge from the baseline target state of charge when it is determined that a change in the target state of charge is desired, including increasing the target state of charge from the baseline state of charge when the driving habits of the vehicle operator indicate a pattern of fast braking operations. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A control system for controlling the state of charge of an energy storage system in a vehicle having an engine, the energy storage system having a target state of charge that is adjustable from a baseline target state of charge, the system comprising:
a controller operatively connected to the energy storage system and configured to receive inputs related to environmental conditions, including information related to a setting of a vehicle environmental control system, the controller being further configured to receive inputs related to current traveling conditions for the vehicle, and to adjust the target state of charge from the baseline target state of charge based on at least one of the inputs received, including reducing the target state of charge from the baseline state of charge when the vehicle environmental control system performs a function that forces the engine to operate. - View Dependent Claims (16, 17, 18, 19, 20, 21)
Specification