| 摘要 |
A stabilizer system for a vehicle, including: (a) a stabilizer bar (28) including (a-1) a torsion bar portion (90), and (a-2) an arm portion (92) that extends from the torsion bar portion toward a wheel (12) of the vehicle; and (b) an actuator (32) including (b-1) a motor (40), and (b-2) a speed reducer (42) that reduces a speed of the motor while transmitting a force of the motor to the torsion bar portion of the stabilizer bar. The stabilizer bar generates a stabilizing force which is dependent on a reaction generated as a result of torsion of the torsion bar portion, and which forces the wheel and the vehicle body in a direction toward each other or a direction away from each other The actuator allows the stabilizer bar to generate the stabilizing force whose magnitude is dependent on a magnitude of the motor force and is changeable depending on an amount of rotation of the torsion bar portion. The actuator includes an actuator-efficiency changing mechanism changing a negative efficiency of the actuator, depending on a direction of the force of the motor.
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