摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A method and system for controlling a vehicle having an electric powertrain and an electric energy storage system. The electric energy storage system includes a capacitor, DC/DC converter, and a battery. The electric energy storage system is controlled to maximize use of the capacitor relative to use of the battery.
摘要:
This invention relates to a method of enhancing the stability of paricalcitol solution in a container by using a chlorobutyl or chlorinated butyl stopper in the container.
摘要:
A method for controlling a hybrid powertrain system includes the steps of determining a first power state of the hybrid powertrain system, limiting electrical power generated by a generator to the minimum of the rated power limit of the generator and the first power state, when the first power state is greater than zero, and limiting the electrical power generated by the generator to zero, and limiting the power limit of an electric machine during generating to a first operating condition of the hybrid powertrain system, when the first power state is less than or equal to zero, to provide over-charge protection to the battery. The method further includes steps that provide over-discharge protection to the battery.
摘要:
A method for controlling a hybrid electric vehicle powertrain includes operating an engine driveably connected to first vehicle wheels, providing an electric motor driveably connected to second vehicle wheels, shifting a gear selector between a forward drive position and a reverse drive position, reducing vehicle speed to or lower than a reference speed, and using a transmission located between the engine and the first wheels and the electric motor to produce reverse or forward drive corresponding to the position to which the gear selector is shifted.
摘要:
A method for controlling a hybrid electric vehicle powertrain includes operating an engine driveably connected to first vehicle wheels, providing an electric motor driveably connected to second vehicle wheels, shifting a gear selector between a forward drive position and a reverse drive position, reducing vehicle speed to or lower than a reference speed, and using a transmission located between the engine and the first wheels and the electric motor to produce reverse or forward drive corresponding to the position to which the gear selector is shifted.