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US 2026/0296443 A1Published application
Vehicle
OwnerJohannes SIWIG, Daniel KEMPTNERinventors
Life of this patent
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Abstract
A vehicle having a drive train is provided which includes a control unit that has an evaluation module that adjusts the transmission protection torque limit (MS(a)) as a function of an actual acceleration of the vehicle or of an actual rotational speed gradient (a) in the drive train correlated therewith.
Claims8
A vehicle comprising:
- a drive train, a drive unit of which outputs a drive torque to vehicle wheels via a transmission;
- and
- a control unit,
- wherein the control unit determines a target drive torque (Msoll) on the basis of a driver-side setpoint input (SV) with which the control unit controls the drive unit,
- wherein the target drive torque (Msoll) determined in the control unit is limited to a maximum transmission protection torque limit (MS(a)), and
- wherein during vehicle acceleration a transmission input torque (ME) applied at a transmission input is smaller than the target drive torque (Msoll) by a torque difference (∆M(a)) that is composed of actual mass moments of inertia of rotatable drive train components located upstream of the transmission in a torque flow direction, and a magnitude of which depends on an actual acceleration of the vehicle, and
- wherein the control unit has an evaluation module that adjusts the transmission protection torque limit (MS(a)) as a function of the actual acceleration of the vehicle or of an actual rotational speed gradient (a) in the drive train correlated therewith, in particular the transmission protection torque limit (MS(a)) is increased when there is an actual acceleration of the vehicle, and a static transmission protection torque component (Mstat) is maintained when there is no actual acceleration of the vehicle.
4 more elements
Dependencies are inferred from the claim text.