Controlling wheel hop in a vehicle driveline
First Claim
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1. A method for controlling wheel-hop in a vehicle driveline, comprising:
- detecting that a wheel-hop condition is occurring upon determining an amplitude and frequency of speed oscillations of a one-way clutch that transmits power to wheels of the driveline; and
engaging transmission friction clutch that is hydraulically actuated, arranged in parallel with the one-way clutch, and transmits torque in the driveline between an engine and the wheels.
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Abstract
A method for controlling wheel-hop in a vehicle driveline includes detecting that a wheel-hop condition occurs upon determining an amplitude and frequency of speed oscillations of a component that transmits power to wheels of the driveline, engaging a transmission friction clutch that transmits torque in the driveline between an engine and the wheels, and modulating requested engine torque.
22 Citations
19 Claims
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1. A method for controlling wheel-hop in a vehicle driveline, comprising:
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detecting that a wheel-hop condition is occurring upon determining an amplitude and frequency of speed oscillations of a one-way clutch that transmits power to wheels of the driveline; and engaging transmission friction clutch that is hydraulically actuated, arranged in parallel with the one-way clutch, and transmits torque in the driveline between an engine and the wheels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling wheel-hop in a vehicle driveline, comprising:
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detecting that a wheel-hop condition is occurring upon determining an amplitude and frequency of speed oscillations of a one-way clutch that transmits power to wheels of the driveline; engaging a hydraulically actuated transmission friction clutch arranged in parallel with the one-way clutch and that transmits torque in the driveline between an engine and the wheels; and reducing engine output torque transmitted to the wheels if the speed amplitude is greater than a reference speed amplitude. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for controlling wheel-hop in a vehicle driveline, comprising:
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transmitting power from an engine through a one-way clutch arranged in parallel with a disengaged friction clutch to the wheels of the driveline; detecting that a wheel-hop condition is occurring upon determining an amplitude and frequency of speed oscillations of a transmission output that transmits power to wheels; and engaging the transmission friction clutch. - View Dependent Claims (19)
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Specification