| 摘要 |
PURPOSE: An estimating method for a surface friction coefficient is provided to improve the efficiency and stability of a TCS(traction control system) by appropriately estimating the surface friction coefficient in the acceleration using a vehicle mass, a wheel speed and an acceleration sensor signal when selecting a control parameter. CONSTITUTION: An estimating method for a surface friction coefficient comprises the following steps. A vehicle mass, a wheel speed and a vehicle acceleration are measured. The surface friction coefficient is estimated using the measured vehicle mass, wheel speed and the vehicle acceleration(118). The surface state for the TCS control is determined using the estimated surface friction coefficient. The engine torque and brake pressure are controlled. The driving power control which stably secures the acceleration performance of the vehicle is practiced. |
