This book describes some devices that are commonly identified as tactile or force sensors. This is achieved with different degrees of detail, in a unique and actual resource, through the description of different approaches to this type of sensors. Understanding the design and the working principles of the sensors described here requires a multidisciplinary background of electrical engineering, mechanical engineering, physics, biology, etc.
EPS (Electric Power Steering) – Motor drives the rack directly
Resolver Type R l T Torque Sensors
Type Gear R ti (O G Ratio (Overall) ll) No. of Turns Lock to Lock Rack Stroke [mm in.
Modern electrical drive systems are composed principally of; motors, power electronics
components, transformers, analog/digital controllers and sensors or observers. The
improvements and the enormous advances in the fi eld of power electronic (semiconductor
components), converters technology and soft ware/implementation technology
have enabled advanced and complex control techniques. With these advances and robust
control algorithms improved, considerable research eff ort is devoted for developing
optimal techniques of speed and torque control for induction machines....
Sensors: Touch, Force, and Torque Mục tiêu của bất kỳ hệ thống cảm biến robot là tiếp thu kiến thức và giải quyết sự không chắc chắn về môi trường của robot, bao gồm cả mối quan hệ của nó với phôi. Trước khi thảo luận về các yêu cầu và hoạt động của speci ® c cảm biến, các mục tiêu rộng lớn của cảm biến cần phải được xem xét. Việc kiểm soát thao túng một robot công nghiệp được dựa trên việc giải thích chính xác của thông tin cảm giác.
TẠP CHÍ PHÁT TRIỂN KH&CN, TẬP 9, SỐ12 -2006
Fast and robust torque control in a very wide range of speed is very needed by various industrial AC drive applications. Therefore, since 1986 , direct torque control (DTC) has been introduced to satisfy this desire. In order to achieve more economical control, conventional speed sensor has been replacing by sensorless speed estimation. The sensorless schemes are used to improve reliability and decrease maintenance requirements.
In this paper, a method to reproduce realistic
driving feeling and improve the returnability of steer-by-wire
systems (SBW) is proposed by measuring the roadwheel motor's
current directly. The key contribution presented here is a novel
method to recreate the driving feeling in term of force feedback
with simpie and cheap current sensors. A current sensor is used to
fully measure the steering torque on the rack of steering
mechanism. This measured steering torque therefore, includes the
overall effects of road conditions, aligning moments, tire
properties and so on.