Engine starting strategy to avoid resonant frequency
First Claim
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1. A machine comprising:
- at least one powertrain component;
an engine configured to apply power to the at least one powertrain component, the engine being operable at various engine speeds including a resonant frequency engine speed;
a hybrid motor configured to apply power to the at least one powertrain component;
an electronic control module configured to control the hybrid motor to apply power to the at least one powertrain component; and
an engine parameter sensor operatively associated with the electronic control module, the engine parameter sensor configured to sense engine performance parameters and send signals indicative of the engine performance parameters to the electronic control module;
wherein the electronic control module is configured to monitor the engine performance parameters and control the hybrid motor to apply power to the at least one powertrain component to provide hybrid performance parameters to counteract the engine performance parameters.
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Abstract
A machine comprising powertrain components, an engine that applies power to powertrain components, and a hybrid motor that applies power to powertrain components. The machine includes an electronic control module that controls the hybrid motor to apply power to powertrain components. The machine includes an engine parameter sensor. The engine parameter sensor senses engine performance parameters and sends engine performance parameter signals to the electronic control module. The electronic control module monitors engine performance parameters and control the hybrid motor to apply power to the powertrain components to provide hybrid performance parameters to counteract the engine performance parameters.
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Citations
18 Claims
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1. A machine comprising:
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at least one powertrain component; an engine configured to apply power to the at least one powertrain component, the engine being operable at various engine speeds including a resonant frequency engine speed; a hybrid motor configured to apply power to the at least one powertrain component; an electronic control module configured to control the hybrid motor to apply power to the at least one powertrain component; and an engine parameter sensor operatively associated with the electronic control module, the engine parameter sensor configured to sense engine performance parameters and send signals indicative of the engine performance parameters to the electronic control module; wherein the electronic control module is configured to monitor the engine performance parameters and control the hybrid motor to apply power to the at least one powertrain component to provide hybrid performance parameters to counteract the engine performance parameters. - View Dependent Claims (2, 3, 4, 5)
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6. A method of starting a machine, the method comprising steps of:
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providing at least one powertrain component; operatively connecting an engine to the at least one powertrain component, the engine being configured to apply power to the at least one powertrain component and to produce various engine performance parameters, and wherein the engine is operable at various engine speeds including a resonant frequency engine speed; operatively connecting a hybrid motor to the at least one powertrain component, the hybrid motor being configured to apply power to the at least one powertrain component and to produce various hybrid performance parameters; monitoring the engine performance parameters; and applying power to the at least one powertrain component with the hybrid motor to provide hybrid performance parameters to counteract the engine performance parameters. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of starting a machine, the method comprising steps of:
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providing at least one powertrain component; operatively connecting an engine to the at least one powertrain component, the engine being configured to apply power to the at least one powertrain component and to produce various engine torque levels, wherein the engine is operable at various engine speeds including a resonant frequency engine speed; operatively connecting a hybrid motor to the at least one powertrain component, the hybrid motor being configured to apply power to the at least one powertrain component and to produce various hybrid torque levels; determining the engine torque levels; determining the hybrid torque levels; operatively associating an electronic control module with the engine and the hybrid motor; monitoring the engine torque levels and the hybrid torque levels with the electronic control module; and applying power to the at least one powertrain component with the hybrid motor to provide hybrid torque levels to counteract the engine torque levels.
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Specification