Adjusting a torque applied to a wheel of a vehicle
AssigneeVolvo Truck Corporation
InventorChidambaram Subramanian
Life of this patent
Estimating the term…
Abstract
A computer system including a processor device configured to adjust a torque applies to a first wheel to a vehicle is provided. The processor device is configured to estimate, a variation in rotational speed of a first drive shaft. The first drive shaft is driven by a second drive shaft by rotating a mechanical joint. The mechanical joint is drivingly connected to both the first drive shaft and the second drive shaft. The processor device is configured to, based on the variation in rotational speed of the first drive shaft and a current speed of the vehicle, estimate a target slip for the first wheel. The processor device is further configured to, based on the estimated target slip for the first wheel, adjust the torque applied to the first wheel.
Claims15
A computer system comprising a processor device configured to adjust a torque applied to a first wheel of a vehicle, the first wheel being comprised in a first axle drivingly connected to a first drive shaft, the first drive shaft being configured to be driven by applying a torque to a second drive shaft, wherein the second drive shaft rotates a mechanical joint based on the applied torque, the mechanical joint being drivingly connected to both the first drive shaft and the second drive shaft, wherein the first drive shaft is angled at a first angle to the mechanical joint, and wherein the second drive shaft is angled at a second angle to the mechanical joint, the processor device further being configured to:
- estimate, for a predetermined time period, a variation in rotational speed of the first drive shaft, the variation in rotational speed of the first drive shaft being caused at least partially by the first angle and the second angle,
- in response to obtaining an indication to adjust a slip of the first wheel, based on the estimated variation in rotational speed of the first drive shaft and a current speed of the vehicle, estimate a target slip for the first wheel, and
- based on the estimated target slip for the first wheel, adjust the torque applied to the first wheel by issuing or adjusting a torque request for a torque to be applied to the second drive shaft.
A computer-implemented method for adjusting a torque applied to a first wheel of a vehicle, the first wheel being comprised in a first axle drivingly connected to a first drive shaft, the first drive shaft being configured to be driven by applying a torque to a second drive shaft, wherein the second drive shaft rotates a mechanical joint based on the applied torque, the mechanical joint being drivingly connected to both the first drive shaft and the second drive shaft, wherein the first drive shaft is angled at a first angle to the mechanical joint, and wherein the second drive shaft is angled at a second angle to the mechanical joint, the method further comprising:
- by a processor device of a computer system, estimating, for a predetermined time period, a variation in rotational speed of the first drive shaft, the variation in rotational speed of the first drive shaft being caused at least partially by the first angle and the second angle,
- by the processor device, in response to obtaining an indication to adjust a slip of the first wheel, based on the estimated variation in rotational speed of the first drive shaft and a current speed of the vehicle, estimating a target slip for the first wheel, and
- based on the estimated target slip for the first wheel, adjusting the torque applied to the first wheel by issuing or adjusting a torque request for a torque to be applied to the second drive shaft.
Dependencies are inferred from the claim text.