Hybrid vehicle and method of control for engine transient mitigation
First Claim
1. A method of operating a hybrid vehicle having an engine and a secondary power source, the method comprising:
- obtaining a quantized previous engine power command based on a previous engine power command;
quantizing a current engine power command;
maintaining the quantized current engine power command if the magnitude of the difference between the current engine power command and the quantized previous engine power command is larger than a threshold;
setting the quantized current engine power command equal to the quantized previous engine power command if the magnitude of the difference between the current engine power command and the quantized previous engine power command is smaller than the threshold;
generating an output engine power command based on the quantized current engine power command; and
operating the engine based on the output engine power command.
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Accused Products
Abstract
A hybrid vehicle and method of control are associated with the following operation. A quantized previous engine power command based on a previous engine power command is obtained. A current engine power command is quantized. The quantized current engine power command is maintained if the magnitude of the difference between the current engine power command and the quantized previous engine power command is larger than a threshold. The quantized current engine power command is set equal to the quantized previous engine power command if the magnitude of the difference between the current engine power command and the quantized previous engine power command is smaller than the threshold. An output engine power command based on the quantized current engine power command is generated. An engine of the hybrid vehicle is operated based on the output engine power command.
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Citations
20 Claims
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1. A method of operating a hybrid vehicle having an engine and a secondary power source, the method comprising:
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obtaining a quantized previous engine power command based on a previous engine power command; quantizing a current engine power command; maintaining the quantized current engine power command if the magnitude of the difference between the current engine power command and the quantized previous engine power command is larger than a threshold; setting the quantized current engine power command equal to the quantized previous engine power command if the magnitude of the difference between the current engine power command and the quantized previous engine power command is smaller than the threshold; generating an output engine power command based on the quantized current engine power command; and operating the engine based on the output engine power command. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hybrid vehicle comprising:
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an electrical machine; an engine and a secondary power source capable of supplying power to the electrical machine; and a controller configured to; obtain a quantized previous engine power command based on a previous engine power command; quantize a current engine power command; maintain the quantized current engine power command if the magnitude of the difference between the current engine power command and the quantized previous engine power command is larger than a threshold; set the quantized current engine power command equal to the quantized previous engine power command if the magnitude of the difference between the current engine power command and the quantized previous engine power command is smaller than the threshold; generate an output engine power command based on the quantized current engine power command; and operate the engine based on the output engine power command. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method comprising:
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obtaining a quantized previous power command based on a previous power command; quantizing a current power command; maintaining the quantized current power command if the magnitude between the current power command and the quantized previous power command is larger than a threshold and otherwise setting the quantized current power command equal to the quantized previous power command; and operating an engine of a hybrid vehicle based on the quantized current power command. - View Dependent Claims (19, 20)
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Specification