Apparatus for detecting steering torque and steering angle and steering system having the same

#This application is the U.S. national stage application of International Patent Application No. PCT/KR2010/008196, filed Nov. 19, 2010, which claims priority to Korean Application No. 10-2009-0112442, filed Nov. 20, 2009, the disclosures of each of which are incorporated herein by reference in their entirety.

#The present invention relates to an apparatus for measuring a steering torque and a steering angle employed in a steering system of a vehicle.

#In general, an automotive power steering system is an assist operating-force providing system configured to smoothly operate a steering handle at the time of great friction resistance applied by a steering wheel leading to a large operating-force for steering a steering handle. Size of the assistant operating-force assisting a steering of the steering handle may be determined by measuring torque applied to a torsion bar when steering a steering handle.

#FIG. 1 is a construction diagram of a vehicle-purpose steering system according to one embodiment of the invention;

#FIG. 2 is an exploded perspective view of a steering torque and steering angle measurement apparatus according to one embodiment of the invention;

#FIG. 3 is a side view of a steering angle signal generation part according to one embodiment of the invention;

#Hereinafter, a preferred embodiment of the invention will be described in consideration of the annexed drawings. The size and shape of components shown in the drawings during this procedure may be exaggerated or simplified for the sake of description's clarity and conveniences. Also, specially defined terms in consideration of the construction and function of the present invention may be varied according to the intention and custom of users and operators. Such terms-related definition should be made based on recitations throughout the entire specification.

#FIG. 1 is a construction diagram of a steering system according to one embodiment of the present invention.

#A steering system according to one embodiment of the invention includes a steering handle 100, an input shaft 200 connected to this steering handle 100 for simultaneously rotating when the steering handle 100 circles, an output shaft 300 connected to the input shaft 200 by an intermediary using a torsion bar and connected to a steering wheel, and a steering torque and steering angle measurement apparatus 400 installed between the input shaft 200 and the output shaft 300 to sense a steering torque and a steering angle.