Patent ID: 8556273

Claim:
A vehicle suspension device, comprising: electromagnetic shock absorbers provided to a plurality of wheels, the electromagnetic shock absorbers each comprising: a motor for generating a current along with relative motion of a spring upper portion and a spring lower portion; and a closed loop circuit that electrically connects a first current-carrying terminal as one of two current-carrying terminals of the motor and a second current-carrying terminal as another of the two current-carrying terminals, for causing the generated current to flow through the motor, the electromagnetic shock absorbers each being configured to damp the relative motion of the spring upper portion and the spring lower portion when the generated current flows through the motor along with the relative motion of the spring upper portion and the spring lower portion; and an interconnection circuit for electrically connecting the first current-carrying terminals of the motors of the electromagnetic shock absorbers provided to a front left wheel, a front right wheel, a rear left wheel, and a rear right wheel, respectively, to each other, electrically connecting the second current-carrying terminal of the motor of the electromagnetic shock absorber provided to the front left wheel and the second current-carrying terminal of the motor of the electromagnetic shock absorber provided to the front right wheel to each other via an impedance element for front wheel roll damping force setting, electrically connecting the second current-carrying terminal of the motor of the electromagnetic shock absorber provided to the rear left wheel and the second current-carrying terminal of the motor of the electromagnetic shock absorber provided to the rear right wheel to each other via an impedance element for rear wheel roll damping force setting, electrically connecting the second current-carrying terminal of the motor of the electromagnetic shock absorber provided to the front left wheel and the second current-carrying terminal of the motor of the electromagnetic shock absorber provided to the rear left wheel to each other via an impedance element for left wheel pitch damping force setting, and electrically connecting the second current-carrying terminal of the motor of the electromagnetic shock absorber provided to the front right wheel and the second current-carrying terminal of the motor of the electromagnetic shock absorber provided to the rear right wheel to each other via an impedance element for right wheel pitch damping force setting.