| 主权项 |
1. A control system for controlling an electric power steering system, the control system comprising:
a first module that estimates a damping force based on an assist torque and a handwheel velocity as a summation of a first term, a second term, a third term, and a fourth term, the first term based on the handwheel velocity, the second term based on a product of the absolute value of the assist torque and the handwheel velocity, the third term based on the handwheel velocity squared and having a same sign as the handwheel velocity, and the fourth term based on a product of the handwheel velocity squared and a negative value of the assist torque, thereby providing an asymmetrical damping characteristic for an assist torque component of the estimated damping force; and a second module that generates a control signal based on the estimated damping force. |
