Damping force control device and method

A damping force control device for controlling damping forces of dampers disposed between a vehicle body and respective wheels of a vehicle, comprising a controller that:

• calculates, for each of the wheels, a first target damping force that inhibits vibrations of the vehicle body in a heave direction, based on a single wheel model of the vehicle;
• calculates, for each of the wheels, a second target damping force that inhibits vibrations of the vehicle body in a roll direction, based on a model of left and right wheels of the vehicle;
• determines an ultimate target damping force for each of the wheels, based on the calculated first and second target damping forces;
• and
• outputs a control signal corresponding to the determined ultimate target damping force to each of the dampers such that a damping force exerted by each of the dampers is set to the determined ultimate target damping force.

A damping force control device for controlling damping forces of dampers disposed between a vehicle body and respective wheels of a vehicle, comprising a controller that:

• calculates, for each of the wheels, a first target damping force that inhibits vibrations of the vehicle body in a heave direction, based on a single wheel model of the vehicle;
• calculates, for each of the wheels, a second target damping force that inhibits vibrations of the vehicle body in a pitch direction, based on a model of front and rear wheels of the vehicle;
• calculates, for each of the wheels, a third target damping force that inhibits vibrations of the vehicle body in a roll direction, based on a model of left and right wheels of the vehicle;
• determines an ultimate target damping force for each of the wheels, based on the calculated first, second and third target damping forces;
• outputs a control signal corresponding to the determined ultimate target damping force to each of the dampers such that a damping force exerted by each of the dampers is set to the determined ultimate target damping force.

A damping force control method for controlling damping forces of dampers disposed between a vehicle body and respective wheels of a vehicle, comprising:

• calculating, for each of the wheels, a first target damping force that inhibits vibrations of the vehicle body in a heave direction, based on a single wheel model of the vehicle;
• calculating, for each of the wheels, a second target damping force that inhibits vibrations of the vehicle body in a pitch direction, based on a model of front and rear wheels of the vehicle;
• determining an ultimate target damping force for each of the wheels, based on the calculated first and second target damping forces;
• and
• outputting a control signal corresponding to the determined ultimate target damping force to each of the dampers such that a damping force exerted by each of the dampers is set to the determined ultimate target damping force.

A damping force control method for controlling damping forces of dampers disposed between a vehicle body and respective wheels of a vehicle, comprising:

• calculating, for each of the wheels, a first target damping force that inhibits vibrations of the vehicle body in a heave direction, based on a single wheel model of the vehicle;
• calculating, for each of the wheels, a second target damping force that inhibits vibrations of the vehicle body in a roll direction, based on a model of left and right wheels of the vehicle;
• determining an ultimate target damping force for each of the wheels, based on the calculated first and second target damping forces;
• and
• outputting a control signal corresponding to the determined ultimate target damping force to each of the dampers such that a damping force exerted by each of the dampers is set to the determined ultimate target damping force.

A damping force control method for controlling damping forces of dampers disposed between a vehicle body and respective wheels of a vehicle, comprising:

• calculating, for each of the wheels, a first target damping force that inhibits vibrations of the vehicle body in a heave direction, based on a single wheel model of the vehicle;
• calculating, for each of the wheels, a second target damping force that inhibits vibrations of the vehicle body in a pitch direction, based on a model of front and rear wheels of the vehicle;
• calculating, for each of the wheels, a third target damping force that inhibits vibrations of the vehicle body in a roll direction, based on a model of left and right wheels of the vehicle;
• determining an ultimate target damping force for each of the wheels, based on the calculated first, second and third target damping forces;
• and
• outputting a control signal corresponding to the determined ultimate target damping force to each of the dampers such that a damping force exerted by each of the dampers is set to the determined ultimate target damping force.