Providing assist torque in steering systems operating without a torque sensor
US-12275466-B2 · Apr 15, 2025 · US
Motion control in motor vehicles
US12570271B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12570271-B2 |
| Application number | US-202118041457-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 10, 2021 |
| Priority date | Aug 13, 2020 |
| Publication date | Mar 10, 2026 |
| Grant date | Mar 10, 2026 |
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- Title
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Abstract
Official abstract text for this publication.
A method for controlling actuators acting on vehicle wheels of a motor vehicle comprises ascertaining a force to be brought about on a reference point of the motor vehicle on the basis of driver specifications, ascertaining wheel forces to be brought about on the vehicle wheels to implement the force to be brought about on the reference point of the motor vehicle by means of a first dynamic allocation by model-based predictive control (MPC), ascertaining setpoint values for wheel parameters from the ascertained wheel forces, and actuating the actuators of the motor vehicle so as to implement the setpoint values of the wheel parameters.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A method for controlling actuators acting on vehicle wheels of a motor vehicle comprising: ascertaining a force to be brought about on a reference point of the motor vehicle on the basis of driver specifications, ascertaining wheel forces to be brought about on the vehicle wheels to implement the force to be brought about on the reference point of the motor vehicle with a first dynamic allocation by model-based predictive control; ascertaining setpoint values for wheel parameters from the wheel forces; actuating the actuators of the motor vehicle so as to implement the setpoint values of the wheel parameters; and converting the wheel forces with an inverse tire-force model into setpoint variables for torques, wheel slips, rotational speeds and steering angles of the wheels. 2 . The method as claimed in claim 1 , wherein the driver specifications are made available by at least one of a virtual driver and an assistance system. 3 . The method as claimed in claim 1 , wherein the driver specifications are at least one of an acceleration and at least one steering angle. 4 . The method as claimed in claim 1 , wherein the setpoint values for the wheel parameters are at least one of torques respectively acting on the wheels, slip values of the wheels, rotational speeds of the wheels, and steering angles of the wheels. 5 . The method as claimed in claim 1 , wherein implementing a setpoint value for a torque acting on a vehicle wheel further comprises a second dynamic allocation, which includes slip control. 6 . The method as claimed claim 1 , wherein the actuators are at least one of electric motors and friction brakes. 7 . The method as claimed in claim 1 , further comprising adapting kinematic setpoint motion variables by way of a virtually controlled single-track model which are taken into account in the first dynamic allocation of the wheel forces. 8 . The method as claimed in claim 1 , wherein the dynamic allocation of the wheel forces includes driving dynamics control. 9 . The method as claimed in claim 1 , wherein ascertaining the wheel forces further comprises ascertaining the wheel forces from a static allocation and feeding the wheel forces to the dynamic allocation as input values. 10 . The method as claimed in claim 9 , further comprising arbitrating from the ascertained wheels forces of the static and the dynamic allocation. 11 . The method as claimed in claim 1 , wherein the first dynamic allocation comprises a saturation of an assigned actuator, a reconfiguration to ensure the error tolerance in the event of failure of the actuator, an increase in the energy efficiency and a minimization of wear.
Assignees
Inventors
Classifications
Wheel torque · CPC title
Steering angle · CPC title
Wheel torque · CPC title
Wheel speed · CPC title
Wheel slip · CPC title
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Frequently asked questions
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- What does patent US12570271B2 cover?
- A method for controlling actuators acting on vehicle wheels of a motor vehicle comprises ascertaining a force to be brought about on a reference point of the motor vehicle on the basis of driver specifications, ascertaining wheel forces to be brought about on the vehicle wheels to implement the force to be brought about on the reference point of the motor vehicle by means of a first …
- Who is the assignee on this patent?
- Continental Automotive Tech Gmbh
- What technology area does this patent fall under?
- Primary CPC classification B60W30/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 10 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).