Method for clutch protection
AssigneeVolvo Lastvagnar AB
InventorsHenrik Ryberg, Erik Lauri, Svante Karlsson, Lars Karlsson
Life of this patent
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Abstract
Method for protecting a clutch of a vehicle, said vehicle being provided with an engine, drive wheels and an automated manual transmission for transmitting drive power from said engine to said drive wheels. A controller can execute the steps of: sensing a power demand from the driver which results in a clutch control where the clutch is partly engaged and clutch slip occurs, measuring travelling distance(s) of the vehicle during a predetermined first time interval, initiating a first warning measure, in order to alert the driver of excessive clutch slip, if the vehicle has traveled less than a predetermined distance during said predetermined first time interval.
Claims15
Method for protecting a clutch of a vehicle from excessive clutch slip, the vehicle being provided with an engine, drive wheels and an automated manual transmission for transmitting drive power from the engine to the drive wheels, the automated manual transmission comprising the clutch, a gearbox and a controller for controlling clutch engagement in response to sensed engine speed, input shaft speed of the gearbox and drive power demand from a vehicle driver, wherein the controller executes the steps of:
- a. sensing a power demand from the driver which results in a clutch control where the clutch is partly engaged and clutch slip occurs,
- b. measuring travelling distance(s) of the vehicle during a predetermined first time interval,
- c. initiating a first warning measure, in order to alert the driver of excessive clutch slip, if the vehicle has traveled less than a predetermined distance (si) during the predetermined first time interval.
The method of any preceding claim, wherein the first time interval is 4 to 10 seconds long.
Dependencies are inferred from the claim text.