To provide a damping force control device of a vehicle capable of controlling the behavior of an attitude change based on target characteristics considering an actual characteristics when the vehicle turns.
A suspension ECU 13 calculates variable coefficient a_new of the target characteristics for changing the target characteristics expressed by a quadratic function with a maximum actual roll angle _max caused to occur to the vehicle in the present turning state and a turning pitch angle _fy_max generated with turning among actual pitch angles , and changes the target characteristics with the coefficient a_new. Based on the changed target characteristics, a difference value between a target pitch angle h corresponding to the actual roll angle and the actual pitch angle is calculated, and a total required damping force F to be generated by cooperating between shock absorbers to change the to [0] is calculated. Furthermore, the total required damping force F is distributed to a required damping force Fi on the turning inside and a required damping force Fo on the turning outside in proportion to the size of lateral acceleration Gl.
HONMA MIKIHIKO
TANAKA WATARU
AISIN SEIKI
| JP2007170590A | 2007-07-05 | |||
| JP2007313951A | 2007-12-06 |