METHODS AND SYSTEMS FOR VEHICLE DRIVELINE TORQUE ESTIMATION
First Claim
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1. A method for operating a hybrid driveline, comprising:
- adjusting engine torque production in response to a torque transferred across a dual mass flywheel, the torque transferred across the dual mass flywheel responsive to an amount of spring deflection within the dual mass flywheel.
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Abstract
Systems and methods for improving hybrid vehicle torque control are presented. The system and methods included may estimate driveline torque via springs of a dual mass flywheel. The estimated driveline torque may provide feedback for adjusting operation of a driveline disconnect clutch and/or engine torque.
10 Citations
20 Claims
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1. A method for operating a hybrid driveline, comprising:
adjusting engine torque production in response to a torque transferred across a dual mass flywheel, the torque transferred across the dual mass flywheel responsive to an amount of spring deflection within the dual mass flywheel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for operating a hybrid driveline, comprising:
adjusting engine torque production in response to a torque delivered across a dual mass flywheel, the torque delivered across the dual mass flywheel responsive to spring deflection in the dual mass flywheel and one or a combination of a first offset and a second offset, the first offset established via shifting a transmission of the hybrid driveline into neutral during a first mode, the second offset established via operating the transmission in a forward gear during a second mode. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A hybrid vehicle system, comprising:
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an engine coupled to a dual mass flywheel; a motor selectively coupled to the engine via a driveline disconnect clutch; and a controller including non-transitory instructions executable to adjust engine torque in response to a torque transferred across the dual mass flywheel, and additional instructions to estimate the torque transferred across the dual mass flywheel based on a position offset between an input side of the dual mass flywheel and an output side of the dual mass flywheel. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification