Granted Patent B2

US 12,509,083 · App. 18/167,824 · Granted Dec 30, 2025

Inventors: Aed Dudar (Canton, MI); Mahmoud Ghannam (Canton, MI)

B60W30/18145B60W10/08B60W10/20B60W2520/10B60W2520/30B60W2530/10B60W2552/30B60W2552/40B60W2555/20B60W2556/50B60W2710/083B60W2710/207B60W2720/30

Abstract

Claims (69)

1 . A vehicle comprising:

a transceiver configured to receive road information and first weather information;

a wheel drive motor configured to control torque of a vehicle wheel; and

a processor communicatively coupled to the transceiver and the wheel drive motor, wherein the processor is configured to:

obtain a first trigger signal when the vehicle approaches a curvy road at a first time;

obtain, responsive to obtaining the first trigger signal, the road information and the first weather information from the transceiver, wherein the road information comprises a radius of curvature of a curve on the curvy road;

calculate, based on the road information and the first weather information, a first vehicle speed at which to enter the curvy road;

transmit, based on the first vehicle speed, a first command signal to the wheel drive motor to control vehicle wheel torque;

store the first vehicle speed in memory;

in response to the vehicle approaching the curvy road at a second time after the first time, obtain second weather information;

determine whether the second weather information is different than the first weather information;

in response to determining that the second weather information is different than the first weather information, calculate a second vehicle speed at which to enter the curvy road using the second weather information;

in response to determining that the second weather information is not different than the first weather information, set the second vehicle speed as the first vehicle speed; and

transmit, based on the second vehicle speed, a second command signal to the wheel drive motor to control vehicle wheel torque.

2 . The vehicle of claim 1 further comprising:

a wheel steering actuator configured to rotate the vehicle wheel.

3 . The vehicle of claim 2 , wherein the processor is further configured to:

obtain vehicle information from the memory responsive to obtaining the first trigger signal;

calculate a wheel rotation angle based on the road information and the vehicle information; and

transmit a third command signal to the wheel steering actuator to rotate the vehicle wheel based on the wheel rotation angle.

4 . The vehicle of claim 3 , wherein the vehicle information comprises vehicle weight, vehicle wheel condition information, and vehicle structure information.

5 . The vehicle of claim 1 , wherein the processor obtains the first trigger signal from a Global Positioning System (GPS) server.

6 . The vehicle of claim 1 , wherein the road information further comprises a road surface type.

7 . The vehicle of claim 6 , wherein the processor is further configured to:

obtain a coefficient of friction of the curvy road based on the road surface type and the first weather information; and

calculate the first vehicle speed based on the coefficient of friction.

8 . The vehicle of claim 1 , wherein the transceiver receives the road information and the first weather information from a server.

9 . A method to control movement of a vehicle on a curvy road, the method comprising:

obtaining, by a processor, a first trigger signal when the vehicle approaches the curvy road at a first time;

obtaining, by the processor, road information and first weather information responsive to obtaining the first trigger signal, wherein the road information comprises a radius of curvature of a curve on the curvy road;

calculating, by the processor, a first vehicle speed at which to enter the curvy road based on the road information and the first weather information;

transmitting, by the processor, a first command signal to a wheel drive motor of the vehicle to control vehicle wheel torque based on the first vehicle speed;

storing the first vehicle speed in memory;

in response to the vehicle approaching the curvy road at a second time after the first time, obtaining second weather information;

determining whether the second weather information is different than the first weather information;

in response to determining that the second weather information is different than the first weather information, calculating a second vehicle speed at which to enter the curvy road using the second weather information;

in response to determining that the second weather information is not different than the first weather information, setting the second vehicle speed as the first vehicle speed; and

transmitting, based on the second vehicle speed, a second command signal to the wheel drive motor to control vehicle wheel torque.

10 . The method of claim 9 further comprising:

obtaining vehicle information responsive to obtaining the first trigger signal;

calculating a wheel rotation angle based on the road information and the vehicle information; and

transmitting a third command signal to a wheel steering actuator of the vehicle to rotate a vehicle wheel based on the wheel rotation angle.

11 . The method of claim 10 , wherein the vehicle information comprises vehicle weight, vehicle wheel condition information, and vehicle structure information.

12 . The method of claim 9 , wherein the first trigger signal is obtained from a Global Positioning System (GPS) server.

13 . The method of claim 9 , wherein the road information further comprises a road surface type.

14 . The method of claim 13 further comprising:

obtaining a coefficient of friction of the curvy road based on the road surface type and the first weather information; and

calculating the first vehicle speed based on the coefficient of friction.

15 . The method of claim 9 , wherein obtaining the road information and the first weather information comprises obtaining the road information and the first weather information from a server.

16 . A non-transitory computer-readable storage medium having instructions stored thereupon which, when executed by a processor, cause the processor to:

obtain a first trigger signal when a vehicle approaches a curvy road at a first time;

obtain road information and first weather information responsive to obtaining the first trigger signal, wherein the road information comprises a radius of curvature of a curve on the curvy road;

calculate a first vehicle speed at which to enter the curvy road based on the road information and the first weather information;

transmit a first command signal to a wheel drive motor of the vehicle to control vehicle wheel torque based on the first vehicle speed;

store the first vehicle speed in memory;

in response to the vehicle approaching the curvy road at a second time after the first time, obtain second weather information;

determine whether the second weather information is different than the first weather information;

in response to determining that the second weather information is different than the first weather information, calculate a second vehicle speed at which to enter the curvy road using the second weather information;

in response to determining that the second weather information is not different than the first weather information, set the second vehicle speed as the first vehicle speed; and

transmit, based on the second vehicle speed, a second command signal to the wheel drive motor to control vehicle wheel torque.

17 . The non-transitory computer-readable storage medium of claim 16 , having further instructions stored thereupon to:

obtain vehicle information responsive to obtaining the first trigger signal;

calculate a wheel rotation angle based on the road information and the vehicle information; and

transmit a third command signal to a wheel steering actuator of the vehicle to rotate a vehicle wheel based on the wheel rotation angle.

18 . The non-transitory computer-readable storage medium of claim 17 , wherein the vehicle information comprises vehicle weight, vehicle wheel condition information, and vehicle structure information.

19 . The non-transitory computer-readable storage medium of claim 16 , wherein the road information further comprises a road surface type.

20 . The non-transitory computer-readable storage medium of claim 19 , having further instructions stored thereupon to:

obtain a coefficient of friction of the curvy road based on the road surface type and the first weather information; and

calculate the first vehicle speed based on the coefficient of friction.

Assignments (1)

Continuity (1)

References Cited (24)