21-04-2016 дата публикации
Номер: US20160107679A1
Provided is a steering assist apparatus () for a vehicle, including a transmission device () configured to transmit a force and a displacement relating to steering between a steering wheel () and steered wheels (L, R), a power steering device () configured to apply an assist torque to the transmission device, and a control device (). When assuming the steering wheel, the transmission device, the power steering device, and the steered wheels as a steering system, the control device is configured to calculate, based on a product of a steering angular velocity and a derivative of the steering angular velocity, a product of the steering angular velocity and a steering torque, and a product of a steering angle and a derivative of the steering torque, a change rate (dDE) of an energy of the steering system, and control the assist torque based on the change rate of the energy of the steering system. 1. A steering assist apparatus for a vehicle , which is to be applied to the vehicle comprising a steering device ,the steering device comprising:a steering wheel to be operated by a driver;steered wheels; anda transmission device configured to transmit a force and a displacement relating to steering between the steering wheel and the steered wheel,the steering assist apparatus comprising:an adjustment force applying device configured to apply an adjustment force for adjusting a force relating to the steering to the transmission device;a control device configured to control the adjustment force to be applied by the adjustment force applying device to the transmission device;a steering angle detection device configured to detect a steering angle; anda steering torque detection device configured to detect a steering torque,wherein the control device is configured to acquire a steering angular velocity, a derivative of the steering angular velocity, and a derivative of the steering torque, calculate, assuming the steering wheel, the transmission device, the adjustment force ...
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