| 摘要 |
<p>Provided is a reaction torque actuator of a steer-by-wire steering device, which enables size and weight reductions and achieves steering feeling without uncomfortable feeling. This reaction torque actuator generates steering reaction force at a steering wheel in a steer-by-wire steering device in which steering is performed by the steering wheel that is not mechanically coupled to a steering shaft for turning. A reaction torque actuator is provided with a motor (2) which is a source of generation of the steering reaction force, a deceleration mechanism (3) which transmits, as reaction torque, the output of the motor (2) to an operation shaft (1b) of a steering wheel (1), and a torque damper (5) which reduces fluctuations in the reaction torque transmitted to the operation shaft (1b). The motor (2), the deceleration mechanism (3), and the torque damper (5) are arranged coaxially with the operation shaft (1b) and coupled in an arrangement sequence.</p> |
