Automotive Research & Testing Center

Automotive Research & Test Center

Chau-Chih Yu

Chih-Jung Yeh

Tsung-Hsien Hu

Jin-Yan Hsu

Tsung-Hua Hsu

A contactless detection apparatus has a first magnet ring, a second magnet ring, a first magnetic sensor, a second magnetic sensor and a controller. The two magnet rings are respectively mounted on two ends of a torsion shaft. When the torsion shaft rotates, the controller detects the magnetic fields of the two magnet rings through the two magnetic sensors. The controller calculates a twisting torque exerted on the torsion shaft and a rotational angle of the torsion shaft according to the detected magnetic fields at the same time. The detection apparatus of the invention has simple structure. The magnetic fields of both magnet rings do not interfere with each other, such that the detection result of the invention is accurate.

Contactless detection apparatus and method for detecting a rotation direction

A stimulus-based steering sensor device and a method for the same are disclosed. The sensor device comprises at least one driving wheel, a processor, two driven wheels, and two resolvers. The processor generates a stimulus signal and has a signal-angle lookup table. The driving wheel contacts two driven wheels. When following the rotation of a steering column, the driving wheel drives two driven wheels to rotate at different speeds. Two resolvers connect with the processor, respectively engage with two driven wheels, receive the stimulus signal, and respectively output two first sinusoidal signals to the processor according to the rotational speeds of two driven wheels. The processor analyzes two first sinusoidal signals to obtain two second sinusoidal signals having different periods, and uses the second sinusoidal signals and the signal-angle lookup table to obtain a first absolute angle value of the rotation of the steering wheel.

Stimulus-based steering sensor device and method for the same

A torque sensor includes a driving rod, a driving body connected fixedly to the driving rod, and a driving block extending from the driving body and having two opposite pushing surfaces, a driven body permitting the driving body to rotate relative thereto as a result of application of a torque to the driving rod, a driven rod extending from the driven body, and a block-receiving groove formed in the driven body. A first measuring module is connected to the driving block. A second measuring module is connected to the driven body, and cooperates with the first measuring module so as to measure the torque. Two resilient members flank the driving block. Each of the resilient members is disposed between and abuts against the corresponding pushing surface and the driven body.

Torque sensor

A torque detector includes an output body, an input body adapted to permit a torque to be applied thereto, a torque beam unit, and a detecting unit disposed between the input and output bodies for converting a relative rotation of the input and output bodies into an electric signal. The torque beam unit includes a shaft, at least one flexible first beam extending radially and outwardly from the shaft and having a proximate end portion connected to the shaft, and a distal end portion connected to and co-rotatable with the output body, and at least one second flexible beam extending radially and outwardly from the shaft in a direction different from that of the first beam and having a proximate end portion connected to the shaft, and a distal end portion connected to and co-rotatable with the input body.

Growing community of inventors

Changhua County, Taiwan

Chau-Chih Yu