Method for determining a power constraint for controlling a powertrain system
First Claim
1. Method for controlling a powertrain system, the powertrain system including a transmission device, an engine, and a second torque generating device connected to an energy storage device, the transmission device operative to transfer power between an output member, the engine, and the second torque generating device, the method comprising:
- monitoring operating conditions of the engine, the transmission device, and the energy storage device;
determining a first power constraint and a second power constraint for transferring power within the powertrain system based on the operating conditions;
filtering the first power constraint utilizing a first filter response time when the first power constraint changes in a first direction; and
filtering the first power constraint utilizing a second filter response time when the first power constraint changes in a second direction.
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Abstract
A method for controlling a powertrain system includes monitoring operating conditions of an engine, a transmission device, and an energy storage device. The method further includes determining a first power constraint, filtering the first power constraint utilizing a first filter response time when the first power constraint changes in a first direction, and filtering the first power constraint utilizing a second filter response time when the first power constraint changes in a second direction.
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Citations
20 Claims
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1. Method for controlling a powertrain system, the powertrain system including a transmission device, an engine, and a second torque generating device connected to an energy storage device, the transmission device operative to transfer power between an output member, the engine, and the second torque generating device, the method comprising:
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monitoring operating conditions of the engine, the transmission device, and the energy storage device; determining a first power constraint and a second power constraint for transferring power within the powertrain system based on the operating conditions; filtering the first power constraint utilizing a first filter response time when the first power constraint changes in a first direction; and filtering the first power constraint utilizing a second filter response time when the first power constraint changes in a second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Method for controlling a powertrain system, the powertrain system including a transmission device, an engine, and a second torque generating device connected to an energy storage device, the transmission device operative to transfer power between an output member, the engine, and the second torque generating device, the method comprising:
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monitoring operating conditions of the engine, the transmission device, and the energy storage device; determining a power constraint for transferring power within the powertrain system based on the operating conditions; filtering the power constraint utilizing a first filter response time when the power constraint changes in a first direction; and filtering the power constraint utilizing a second filter response time when the power constraint changes in a second direction. - View Dependent Claims (14, 15, 16, 17, 18)
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19. Method for controlling a powertrain system, the powertrain system including a transmission device, an engine, and a second torque generating device connected to an energy storage device, the transmission device operative to transfer power between an output member, the engine, and the second torque generating device, the method comprising:
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monitoring operating conditions of the engine, the transmission device, and the energy storage device; determining a maximum torque constraint and a minimum torque constraint for transferring torque within the powertrain system based on the operating conditions; filtering the maximum torque constraint utilizing a first filter response time when the maximum torque constraint is decreasing; filtering the maximum torque constraint utilizing a second filter response time when the maximum torque constraint is increasing; filtering the minimum torque constraint utilizing a third filter response time when the minimum torque constraint increasing; and filtering the minimum torque constraint utilizing a fourth filter response time when the minimum constraint is decreasing. - View Dependent Claims (20)
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Specification