Method and device for operating a drive unit, and test device for testing a drive unit
First Claim
1. A method for operating a drive unit of a motor vehicle, comprising:
- representing, for at least one operating quantity of the drive unit, a deviation from an initial value by an adaptation value, wherein the adaptation value is determined at a plurality of points of time;
storing, in an extreme value storage unit, a first adaptation value determined at a first point in time;
comparing a second adaptation value, determined at a point in time after the first point in time, with the first adaptation value stored in the extreme value storage unit to determine whether the second adaptation value exceeds the first adaptation value in a predetermined direction; and
if the second adaptation value exceeds the first adaptation value in the predetermined direction, overwriting the extreme value storage unit with the second adaptation value.
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Accused Products
Abstract
In a method for operating a drive unit, for at least one operating quantity of the drive unit, a deviation from an initial value is represented by an adaptation value, which adaptation value is determined at various times. In an extreme value storage unit, a first adaptation value, determined at a first point in time, is stored. A second adaptation value, determined at a second point in time after the first point in time, is compared with the first adaptation value stored in the extreme value storage unit to determine whether the second adaptation value exceeds the first adaptation value in a prespecified direction. In this case, the extreme value storage unit is overwritten by the second adaptation value.
4 Citations
11 Claims
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1. A method for operating a drive unit of a motor vehicle, comprising:
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representing, for at least one operating quantity of the drive unit, a deviation from an initial value by an adaptation value, wherein the adaptation value is determined at a plurality of points of time;
storing, in an extreme value storage unit, a first adaptation value determined at a first point in time;
comparing a second adaptation value, determined at a point in time after the first point in time, with the first adaptation value stored in the extreme value storage unit to determine whether the second adaptation value exceeds the first adaptation value in a predetermined direction; and
if the second adaptation value exceeds the first adaptation value in the predetermined direction, overwriting the extreme value storage unit with the second adaptation value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device for operating a drive unit of a vehicle, comprising:
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an adaptation unit determining an adaptation value to represent a deviation from an initial value of at least one operating quantity of the drive unit, wherein the adaptation value is determined at a plurality of points of time;
an extreme value storage unit, wherein a first adaptation value determined at a first point in time is stored in the extreme value storage unit;
a comparator unit comparing a second adaptation value with the first adaptation value stored in the extreme value storage unit, wherein the second adaptation value is determined at a second point in time after the first point in time;
a testing unit testing whether the second adaptation value exceeds the first adaptation value in a predetermined direction; and
a overwrite unit overwriting the extreme value storage unit with the second adaptation value if the second adaptation value exceeds the first adaptation value in the predetermined direction.
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9. A test device for testing a drive unit of a vehicle, comprising:
a read-out unit reading out at least one adaptation value from a device for operating the drive unit, wherein the at least one adaptation value represents a deviation of at least one operating quantity of the drive unit from an initial value, and wherein the read-out unit reads out an extreme adaptation value from an extreme value storage unit of the device. - View Dependent Claims (10, 11)
Specification