公开(公告)号：US20250019016A1

公开(公告)日：2025-01-16

申请号：US18350503

申请日：2023-07-11

Applicant: GM Global Technology Operations LLC

Inventor： Mohammad Pournazeri ,  Mustafa Hakan Turhan ,  Naser Mehrabi ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Ehsan Asadi

IPC: B62D37/02 ,  B60W40/13

Abstract: A method for downforce control includes receiving vehicle inputs. The method includes determining a first normal-force request at the front axle and a second normal-force request at the rear axle using the purality of vehicle inputs and a prediction model. The prediction model is a combined state space model that integrates a half-car state space model and an actuator state space model, the half-car state space model is developed using a half-car model, and the actuator state space model is developed using a neural network model. The method further includes determining a first position of the first aerodynamic body relative to the vehicle body and a second position of the second aerodynamic body relative to the vehicle body based on the first normal-force request and the second normal-force request, respectively.

公开(公告)号：US20250022324A1

公开(公告)日：2025-01-16

申请号：US18350491

申请日：2023-07-11

Applicant: GM Global Technology Operations LLC

Inventor： Mohammad Pournazeri ,  Naser Mehrabi ,  Ehsan Asadi ,  SeyedAlireza Kasaiezadeh Mahabadi

IPC: G07C5/02 ,  B62D35/00

Abstract: A method for downforce control includes receiving a plurality of vehicle inputs from a vehicle. The plurality of vehicle inputs includes sensor data from a plurality of sensors of the vehicle. The method further includes determining a downforce acting on the vehicle, by: (a) determining a predicted half-car model uncertainties using a neural network; and (b) determining a front normal force at the front axle and a rear normal force at the rear axle using the vehicle inputs, the predicted half-car model uncertainties, and a half-car model. The method further includes determining a first position of the first aerodynamic body relative to the vehicle body and a second position of the second aerodynamic body relative to the vehicle body based on the front normal force at the front axle and a rear normal force at the rear axle, respectively.

公开(公告)号：US20240286690A1

公开(公告)日：2024-08-29

申请号：US18173925

申请日：2023-02-24

Applicant: GM Global Technology Operations LLC

Inventor： Mohammad Pournazeri ,  Ehsan Asadi ,  Naser Mehrabi ,  SeyedAlireza Kasaiezadeh Mahabadi

IPC: B62D37/02 ,  B62D35/00

CPC classification number: B62D37/02 ,  B62D35/005 ,  B62D35/007

Abstract: A method for data driven downforce control of a vehicle includes receiving a first requested downforce at the front axle of a vehicle and a second requested downforce at the rear axle of the vehicle. The method further includes using a model-based control to determine a first position of the first aerodynamic body relative to the vehicle body and a second position of the second aerodynamic body relative to the vehicle body based on the first requested downforce and the second requested downforce. The model-based control is based on a predetermined aerodynamic map. The method includes commanding the first aerodynamic actuator to move the first aerodynamic body to the first position. The method includes commanding the second aerodynamic actuator to move the second aerodynamic body to the second position.

公开(公告)号：US20250018956A1

公开(公告)日：2025-01-16

申请号：US18350508

申请日：2023-07-11

Applicant: GM Global Technology Operations LLC

Inventor： Mohammad Pournazeri ,  Reza Hajiloo ,  Naser Mehrabi ,  Ehsan Asadi ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Gianmarc Coppola

IPC: B60W40/13 ,  B62D37/02 ,  G06N3/04

Abstract: A method for downforce control includes receiving sensor data from sensors, using a feedforward control to determine a first requested normal force at the first axle of the vehicle and a second requested normal force at the second axle of the vehicle and the sensor data, using a feedback control to determine a first requested normal force adjustment at the first axle of the vehicle and a second requested normal force adjustment at the second axle of the vehicle using the sensor data, fusing the first requested normal force at the first axle of the vehicle with the first requested normal force adjustment to determine a first-adjusted normal force request at the first axle, and fusing the second requested normal force with the second requested normal force adjustment to determine a second-adjusted normal force request at the second axle.