Method and device for controlling the drive unit of a vehicle
First Claim
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1. A method for controlling a drive unit of a vehicle having a drive train operatively connected to said drive unit, the drive unit generating a torque during operation of the vehicle, the method comprising the steps of:
- influencing the torque of the drive unit in the sense of a reduction of vibrations in train in the vehicle and deriving the influencing of the torque from a comparison of the rpm of the drive unit with a pregiven desired rpm; and
, determining the desired rpm in dependence upon the engine rpm gradients caused by the driver input and/or the transmission ratio shift of the transmission.
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Abstract
A method and an arrangement for controlling the drive unit of a vehicle are suggested wherein the torque of the drive unit is influenced in the sense of a reduction of vibrations in the drive train of the vehicle in dependence upon the actual rpm and a pregiven desired rpm. The desired rpm is derived on the basis of at least one engine rpm gradient which is caused by the transmission ratio shift and/or by the driver input.
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Citations
6 Claims
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1. A method for controlling a drive unit of a vehicle having a drive train operatively connected to said drive unit, the drive unit generating a torque during operation of the vehicle, the method comprising the steps of:
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influencing the torque of the drive unit in the sense of a reduction of vibrations in train in the vehicle and deriving the influencing of the torque from a comparison of the rpm of the drive unit with a pregiven desired rpm; and
,determining the desired rpm in dependence upon the engine rpm gradients caused by the driver input and/or the transmission ratio shift of the transmission. - View Dependent Claims (2, 3, 4, 5)
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6. An arrangement for controlling a drive unit of a vehicle having a drive train operatively connected to said drive unit, the arrangement comprising:
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a control unit for influencing a torque of the drive unit in the sense of reducing the vibrations in the drive train of the vehicle;
a controller unit for influencing the torque on the basis of the actual rpm and a desired rpm in the sense of a reduction of vibrations;
said controller unit including a monitor for determining the engine rpm gradient, which is caused by a transmission ratio shift, and/or the engine rpm gradient, which is caused by the driver input; and
,said controller unit including means for deriving the desired torque rpm from at least one of said gradients.
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Specification