Method and arrangement for controlling the input torque of a transmission
First Claim
1. A method for controlling the input torque of a transmission mounted downstream of an internal combustion engine during a gear ratio changing operation of the transmission, said input torque having a value at the start of a shift operation and said input torque being decreased or increased beyond said value via pregiven measures in dependence upon whether an upshift or downshift takes place, the engine including an electromagnetic brake for controlling said input torque and, the method comprising performing the following step to realize at least one of said measures:
- actuating the electromagnetic brake controlling said input torque of said transmission.
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Accused Products
Abstract
The invention is directed to a method for controlling the input torque of a transmission mounted downstream of an internal combustion engine during a gear ratio changing operation of the transmission. The input torque is increased or decreased by pregiven measures beyond the value thereof present at the start of the shifting operation in dependence upon mode of shifting present. The method includes performing at least one of the following steps to realize at least one of the measures: actuating a device for changing the geometric characteristics of the exhaust-gas system of the engine; actuating the electromagnetic brake controlling the input torque of the transmission; switching in or switching out ancillary equipment driven by the engine; actuating the intake or exhaust valves of the engine to generate a negative combustion torque; and, if the engine is an engine having externally supplied ignition, advancing the ignition time point of the engine.
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Citations
11 Claims
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1. A method for controlling the input torque of a transmission mounted downstream of an internal combustion engine during a gear ratio changing operation of the transmission, said input torque having a value at the start of a shift operation and said input torque being decreased or increased beyond said value via pregiven measures in dependence upon whether an upshift or downshift takes place, the engine including an electromagnetic brake for controlling said input torque and, the method comprising performing the following step to realize at least one of said measures:
actuating the electromagnetic brake controlling said input torque of said transmission. - View Dependent Claims (2, 3)
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4. An arrangement for controlling the input torque of a transmission mounted downstream of an internal combustion engine during a gear ratio changing operation, the arrangement comprising:
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means for increasing or decreasing said input torque beyond a value present at the start of a shift operation utilizing pregiven measures in dependence upon whether an upshift or downshift takes place; and
,said means being configured so that at least one of said measures includes; advancing the ignition time point of said engine if said engine is an engine having externally supplied ignition.
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5. An arrangement for controlling the input torque of a transmission mounted downstream of an internal combustion engine during a gear ratio changing operation, the arrangement comprising:
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means for increasing or decreasing said input torque beyond a value present at the start of a shift operation utilizing pregiven measures in dependence upon whether an upshift or downshift takes place; and
,said means being configured so that at least one of said measures includes;
actuating the intake valves of said engine to generate a negative combustion torque.
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6. An arrangement for controlling the input torque of a transmission mounted downstream of an internal combustion engine during a gear ratio changing operation, said engine including an electromagnetic brake for controlling said input torque and the arrangement comprising:
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means for increasing or decreasing said input torque beyond a value present at the start of a shift operation utilizing pregiven measures in dependence upon whether an upshift or downshift takes place; and
,said means being configured so that at least one of said measures includes;
actuating the electromagnetic brake controlling said input torque of said transmission. - View Dependent Claims (7, 8)
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9. A method for controlling the input torque of a transmission mounted downstream of an internal combustion engine during a gear ratio changing operation of the transmission, said input torque having a value at the start of a shift operation and said input torque being decreased or increased beyond said value via pregiven measures in dependence upon whether an upshift or downshift takes place, the method comprising performing the following step to realize at least one of said measures:
if said engine is an engine having externally supplied ignition, advancing the ignition time point of said engine.
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10. A method for controlling the input torque of a transmission mounted downstream of an internal combustion engine during a gear ratio changing operation of the transmission, said input torque having a value at the start of a shift operation and said input torque being decreased or increased beyond said value via pregiven measures in dependence upon whether an upshift or downshift takes place, the method comprising performing the following step to realize at least one of said measures:
actuating the intake valves of said engine to generate a negative combustion torque. - View Dependent Claims (11)
Specification