Method and device for operating a belt drive of a motor vehicle
AssigneeRobert Bosch GmbH
InventorsYves Detrois, Rolf Jaros
Life of this patent
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Abstract
A method and a device for operating a belt drive of a motor vehicle. Under high loads, a high belt tension is set and during normal operation a low belt tension is set. The particular belt tension is set through a control process, taking into account the instantaneous load on the belt drive and/or taking into account the age of the belt of the belt drive.
Claims18
A method for operating a belt drive of a motor vehicle in which a high belt tension is set under high loads and a low belt tension is set during normal operation, the method comprising:
- setting a particular belt tension through a control process, at least one of taking into account an instantaneous load on the belt drive, and taking into account an age of a belt of the belt drive;
- checking whether undesirable belt slippage is present, after setting the particular belt tension;
- incrementally increasing the belt tension, upon recognition of an undesirable belt slippage, until a nonexistence of the undesirable belt slippage is detected;
- and
- checking upon recognition of the nonexistence of undesirable belt slippage, whether the belt tension may be reduced.
A device for operating a belt drive of a motor vehicle comprising a generator, a belt pulley connected to the generator, a crankshaft, a belt pulley connected to the crankshaft, a control unit connected to the generator via a first line, a drive belt which is wound around the belt pulley of the generator and the belt pulley on the crankshaft, and an actuator for setting a belt tension value which is connected to the control unit, wherein the control unit has an electronic regulator which is configured to set a particular belt tension through a control process, at least one of taking into account an instantaneous load on the belt drive, and taking into account an age of a belt of the belt drive, to check whether undesirable belt slippage is present, after setting the particular belt tension, to incrementally increase the belt tension, upon recognition of an undesirable belt slippage, until a nonexistence of the undesirable belt slippage is detected, and to check upon recognition of the nonexistence of undesirable belt slippage, whether the belt tension may be reduced.
Dependencies are inferred from the claim text.