Method for the distribution of drive torque
AssigneeGETRAG Driveline Systems GmbH
InventorsMichael Hoeck, Harwin Niessen
Life of this patent
Estimating the term…
Abstract
A method for the distribution of drive torque to the wheels of a driven axle of a motor vehicle. The bend slip between a bend-inside and a bend-outside wheel of an axle of the motor vehicle during cornering is calculated. The inner drive slip between the bend-inside driven wheel and the bend-inside nondriven wheel is calculated. The drive torque is distributed as a function of a difference between the inner drive slip and the bend slip, multiplied by a scaling factor.
Claims20
A method for the distribution of drive torque to driven wheels of a driven axle of a motor vehicle during cornering through a bend, wherein the motor vehicle has a bend-inside driven wheel, a bend-outside driven wheel, a bend-inside non-driven wheel, and a bend outside non-driven wheel, the method, performed by a controller, having the steps,
- calculating a bend slip between the bend-inside driven wheel and the bend-outside driven wheel of the driven axle of the motor vehicle, wherein the bend slip corresponds to the difference of the speed of the bend-inside driven wheel and the speed of the bend- outside driven wheel,
- calculating an inner drive slip between the bend-inside driven wheel and the bend- inside non-driven wheel, wherein the inner drive slip corresponds to the difference of the speed of the bend-inside driven wheel and the speed of the bend-inside non-driven wheel,
- distributing the drive torque between the bend-inside driven wheel and the bend-outside driven wheel as a function of a difference between the inner drive slip and the bend slip, multiplied by a scaling factor, wherein the scaling factor is a variable scaling factor, and
- adjusting a desired driving mode by adjusting the scaling factor.
Dependencies are inferred from the claim text.