Method for electric power boosting in a powertrain system
First Claim
1. Method for controlling a powertrain system operative to transfer power between an input member and a plurality of power actuators and an output member to generate an output torque, the power actuators connected to an energy storage device, the method comprising:
- monitoring operating conditions of the powertrain system;
determining an electric power limit for output power of the energy storage device;
selectively enabling electric power boost based upon the operating conditions of the powertrain system; and
increasing the electric power limit when electric power boost is enabled.
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Accused Products
Abstract
A powertrain system is operative to transfer power between an input member and a plurality of power actuators and an output member to generate an output torque. The power actuators are connected to an energy storage device. A method for controlling the powertrain system includes monitoring operating conditions of the powertrain system, determining an electric power limit for output power of the energy storage device, selectively enabling electric power boost based upon the operating conditions of the powertrain system, and increasing the electric power limit when electric power boost is enabled.
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Citations
20 Claims
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1. Method for controlling a powertrain system operative to transfer power between an input member and a plurality of power actuators and an output member to generate an output torque, the power actuators connected to an energy storage device, the method comprising:
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monitoring operating conditions of the powertrain system; determining an electric power limit for output power of the energy storage device; selectively enabling electric power boost based upon the operating conditions of the powertrain system; and increasing the electric power limit when electric power boost is enabled. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Method for managing electric power in a powertrain system comprising an energy storage device, an engine, a second torque generating device and a transmission device operative to transfer power among an output member, the engine and the second torque generating device, the second torque generating device electrically coupled to an energy storage device, the method comprising:
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monitoring operating conditions of the powertrain system; providing a maximum electric power limit and a minimum electric power limit; selectively enabling and disabling electric power boost based on the operating conditions of the powertrain system; and modifying the electric power limit by one of boosting the electric power limit when electric power boost is enabled and pinching the electric power limit when the electric power boost is disabled. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. Method for managing electric power in a powertrain system comprising an energy storage device, an engine, a second torque generating device and a transmission device operative to transfer power among an output member, the engine and the second torque generating device, the second torque generating device electrically coupled to an energy storage device, the method comprising:
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providing a maximum electric power limit and a minimum electric power limit; monitoring operating conditions of the powertrain system including at least one of a state of charge of the energy storage device, an engine torque, an engine capacity limit, an engine state, an engine starting cycle operation, and an engine stopping cycle operation; enabling electric power boost based upon at least one of the state of charge of the energy storage device, the engine state, the engine torque, the engine starting cycle, and the engine stopping cycle; and increasing the electric power limit when electric power boost is enabled.
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Specification