Deceleration rate based engine spin control and engine off functionality
First Claim
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1. A hybrid vehicle, comprising:
- an engine;
an electric machine that selectively drives said engine; and
a control module that monitors a deceleration rate of said vehicle, that regulates fueling of said engine based on said deceleration rate and that regulates rotation of a crankshaft of said engine based on said deceleration rate,wherein said control module drives said engine by applying a positive torque to said engine via said electric machine to increase engine torque after startup of said engine and based on said deceleration rate, andwherein said control module drives said engine by applying a positive torque to said engine via said electric machine when said engine is not receiving fuel.
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Abstract
A hybrid vehicle that includes an engine and an electric machine that selectively drives the engine. A control module monitors a deceleration rate of the vehicle and regulates fueling of the engine based on the deceleration rate. The control module regulates rotation of a crankshaft of the engine based on the deceleration rate.
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Citations
45 Claims
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1. A hybrid vehicle, comprising:
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an engine; an electric machine that selectively drives said engine; and a control module that monitors a deceleration rate of said vehicle, that regulates fueling of said engine based on said deceleration rate and that regulates rotation of a crankshaft of said engine based on said deceleration rate, wherein said control module drives said engine by applying a positive torque to said engine via said electric machine to increase engine torque after startup of said engine and based on said deceleration rate, and wherein said control module drives said engine by applying a positive torque to said engine via said electric machine when said engine is not receiving fuel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 33, 34, 35, 36, 37, 39, 40, 42, 43, 44, 45)
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8. A method of regulating a hybrid electric vehicle during deceleration, comprising:
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monitoring a deceleration rate of said vehicle; regulating fueling of an engine based on said deceleration rate; regulating rotation of a crankshaft of said engine based on said deceleration rate, driving said engine by applying a positive torque on said engine via an electric machine to increase engine torque after startup of said engine and based on said deceleration rate; and driving said engine by applying a positive torque to said engine via said electric machine when said engine is not receiving fuel. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A hybrid vehicle, comprising:
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an engine; a clutch that selectively enables said engine to directly drive a transmission; an electric machine that selectively drives said engine; and a control module that monitors a deceleration rate of said vehicle, that regulates fueling of said engine based on said deceleration rate, that regulates engagement of said clutch based on said deceleration rate and that regulates rotation of a crankshaft of said engine based on said deceleration rate, wherein said control module drives said engine by applying a positive torque on said engine via said electric machine to increase engine torque after startup of said engine and based on said deceleration rate, wherein said positive torque is applied to said engine to decrease said deceleration rate. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 38, 41)
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24. A method of regulating deceleration of a hybrid vehicle, comprising:
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monitoring a deceleration rate of said vehicle; fueling of an engine based on said deceleration rate; regulating engagement of a clutch that selectively enables an engine to directly drive a transmission based on said deceleration rate; regulating rotation of a crankshaft of said engine based on said deceleration rate; and driving said engine by applying a positive torque on said engine via an electric machine to increase engine torque after startup of said engine and based on said deceleration rate, wherein said positive torque is applied to said engine to decrease said deceleration rate. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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Specification