Patents by Inventor Chih-Jung Yeh
Chih-Jung Yeh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10421492Abstract: An assisted steering system with vibrational function for vehicles is applied to a steering system of a vehicle. The steering system has a first steering column and a second steering column, and the assisted steering system includes a speed-adjustable steering device and an electronic control unit. The speed-adjustable steering device is connected between the first steering column and the second steering column and has a motor. The electronic control unit is electrically connected to the motor, generates a vibration driving current when receiving a warning command, combines a steering driving current with the vibration driving current to generate a motor control current, and outputs the motor control current to the motor of the speed-adjustable steering device to excite windings of the motor with the vibration driving current in generation of a vibrational effect.Type: GrantFiled: December 29, 2016Date of Patent: September 24, 2019Assignee: Automotive Research & Testing CenterInventors: Jin-Yan Hsu, Tong-Kai Jhang, Chih-Jung Yeh
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Publication number: 20180186400Abstract: An assisted steering system with vibrational function for vehicles is applied to a steering system of a vehicle. The steering system has a first steering column and a second steering column, and the assisted steering system includes a speed-adjustable steering device and an electronic control unit. The speed-adjustable steering device is connected between the first steering column and the second steering column and has a motor. The electronic control unit is electrically connected to the motor, generates a vibration driving current when receiving a warning command, combines a steering driving current with the vibration driving current to generate a motor control current, and outputs the motor control current to the motor of the speed-adjustable steering device to excite windings of the motor with the vibration driving current in generation of a vibrational effect.Type: ApplicationFiled: December 29, 2016Publication date: July 5, 2018Inventors: Jin-Yan Hsu, Tong-Kai Jhang, Chih-Jung Yeh
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Patent number: 9789900Abstract: A modular steering system is adapted to be installed in a vehicle. The vehicle includes a steering column. The modular steering system includes an input unit, a first output unit, and a second output unit. The input unit includes an input shaft that extends along a first axis, that is adapted to be connected to the steering column, and that is adapted to be driven rotatably by the steering column about the first axis. The first output unit includes a first output shaft that extends along and is rotatable about a second axis parallel to the first axis. The second output unit includes a second output shaft that extends along and is rotatable about a third axis. The second axis and the third axis cooperatively define an angle therebetween.Type: GrantFiled: December 30, 2015Date of Patent: October 17, 2017Assignee: Automotive Research & Testing CenterInventors: Hsien-Yu Kuo, Chih-Jung Yeh
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Publication number: 20170190351Abstract: A modular steering system is adapted to be installed in a vehicle. The vehicle includes a steering column. The modular steering system includes an input unit, a first output unit, and a second output unit. The input unit includes an input shaft that extends along a first axis, that is adapted to be connected to the steering column, and that is adapted to be driven rotatably by the steering column about the first axis. The first output unit includes a first output shaft that extends along and is rotatable about a second axis parallel to the first axis. The second output unit includes a second output shaft that extends along and is rotatable about a third axis. The second axis and the third axis cooperatively define an angle therebetween.Type: ApplicationFiled: December 30, 2015Publication date: July 6, 2017Inventors: Hsien-Yu Kuo, Chih-Jung Yeh
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Patent number: 9533545Abstract: An electric vehicle thermal management system includes a dynamic heat dissipating unit, an air conditioner unit, a heat exchange unit, and a control unit. The heat exchange unit is connected to the dynamic heat dissipating unit and the air conditioner unit for transferring heat therebetween. The control unit adjusts the flow rate of a coolant in the dynamic heat dissipating unit for controlling and adjusting the heat dissipating ability of the dynamic heat dissipating unit to meet the heat dissipation of the system, thereby improving distribution and management of heat energy in the system.Type: GrantFiled: December 27, 2013Date of Patent: January 3, 2017Assignee: Automotive Research & Testing CenterInventors: Liang-Cheng Chang, Hong-Chi Wang, Chih-Jung Yeh, Shih-Jung Ho
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Patent number: 9061564Abstract: An active vehicle with variable inclination mechanism is provided. The active vehicle with variable inclination mechanism comprises a linear slide mechanism, two sets of longitudinal interlocking mechanism, a steering control mechanism, and a control unit. The linear slide mechanism comprises a reciprocating action member. A lateral displacement of the reciprocating action member drives the longitudinal interlocking mechanism to produce a displacement along a longitudinal direction while a torque is applied at the steering control mechanism. The wheels are driven to move along an opposite longitudinal direction and to form an inclination. Using the active vehicle with variable inclination mechanism can provide a real-time inclination force while rounding a corner as well as increase the safety. Besides, the driver can easily get on/off the vehicle when the vehicle is stationary and the reciprocating action member is locked at the stationary position of the vehicle.Type: GrantFiled: December 18, 2013Date of Patent: June 23, 2015Assignee: Automotive Research & Testing CenterInventors: Chao-Chih Yu, Chih-Jung Yeh, Jin-Yan Hsu, Jiun-Jie Chen, Shih-Jung Ho
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Publication number: 20150165855Abstract: An active vehicle with variable inclination mechanism is provided. The active vehicle with variable inclination mechanism comprises a linear slide mechanism, two sets of longitudinal interlocking mechanism, a steering control mechanism, and a control unit. The linear slide mechanism comprises a reciprocating action member. A lateral displacement of the reciprocating action member drives the longitudinal interlocking mechanism to produce a displacement along a longitudinal direction while a torque is applied at the steering control mechanism. The wheels are driven to move along an opposite longitudinal direction and to form an inclination. Using the active vehicle with variable inclination mechanism can provide a real-time inclination force while rounding a corner as well as increase the safety. Besides, the driver can easily get on/off the vehicle when the vehicle is stationary and the reciprocating action member is locked at the stationary position of the vehicle.Type: ApplicationFiled: December 18, 2013Publication date: June 18, 2015Applicant: Automotive Research & Testing CenterInventors: Chao-Chih YU, Chih-Jung YEH, Jin-Yan HSU, Jiun-Jie CHEN, Shih-Jung HO
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Publication number: 20150121922Abstract: An electric vehicle thermal management system includes a dynamic heat dissipating unit, an air conditioner unit, a heat exchange unit, and a control unit. The heat exchange unit is connected to the dynamic heat dissipating unit and the air conditioner unit for transferring heat therebetween. The control unit adjusts the flow rate of a coolant in the dynamic heat dissipating unit for controlling and adjusting the heat dissipating ability of the dynamic heat dissipating unit to meet the heat dissipation of the system, thereby improving distribution and management of heat energy in the system.Type: ApplicationFiled: December 27, 2013Publication date: May 7, 2015Applicant: Automotive Research & Testing CenterInventors: Liang-Cheng Chang, Hong-Chi Wang, Chih-Jung Yeh, Shih-Jung Ho
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Patent number: 8941375Abstract: 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.Type: GrantFiled: December 7, 2012Date of Patent: January 27, 2015Assignee: Automotive Research & Testing CenterInventors: Chau-Chih Yu, Tsung-Hua Hsu, Jin-Yan Hsu, Chih-Jung Yeh
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Patent number: 8914194Abstract: 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.Type: GrantFiled: August 6, 2012Date of Patent: December 16, 2014Assignee: Automotive Research & Test CenterInventors: Jin-Yan Hsu, Tsung-Hua Hsu, Chau-Chih Yu, Tsung-Hsien Hu, Chih-Jung Yeh
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Publication number: 20140159710Abstract: 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.Type: ApplicationFiled: December 7, 2012Publication date: June 12, 2014Applicant: Automotive Research & Testing CenterInventors: Chau-Chih YU, Tsung-Hua HSU, Jin-Yan HSU, Chih-Jung YEH
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Patent number: 8677836Abstract: 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.Type: GrantFiled: December 23, 2011Date of Patent: March 25, 2014Assignee: Automotive Research & Testing CenterInventors: Chau-Chih Yu, Tsung-Hsien Hu, Chih-Jung Yeh
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Publication number: 20130332031Abstract: 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.Type: ApplicationFiled: August 6, 2012Publication date: December 12, 2013Inventors: Jin-Yan HSU, Tsung-Hua HSU, Chau-Chih YU, Tsung-Hsien HU, Chih-Jung Yeh
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Patent number: 8604647Abstract: A linear actuating device includes a track unit having an insulating sleeve made of non-metallic material and surrounding an axis, a plurality of coils mounted spacedly and sleevingly on the insulating sleeve along the axis, and a shell containing the insulating sleeve and the coils. The linear actuating device also includes a forcer unit having an elongate member extending through the insulating sleeve, having a segment configured for connecting to a vehicle shaft, and being movable along the axis relative to the insulating sleeve. The forcer unit also includes a plurality of magnets mounted spacedly relative to the axis and sleevingly on the elongate member.Type: GrantFiled: March 21, 2011Date of Patent: December 10, 2013Assignee: Automotive Research & Testing CenterInventors: Tsung-Hsien Hu, Chih-Jung Yeh
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Patent number: 8483913Abstract: The present invention discloses a self-calibration method for an electric power steering system, which can self-calibrate the sensors to a normalized state to prevent from signal distortion, whereby to maintain stable steering sense of the driver and promote robustness and performance of the EPS system. The self-calibration method includes a signal offset compensation tactic and a zero-point signal self-calibration tactic. The present invention determines whether to undertake self-calibration according to judgement tactics, including a sensor power supply judgement tactic, a sensor correctness judgement tactic, and a self-calibration triggering condition. The self-calibration method can increase the correctness of sensors, maintain the original steering-assisting function and promote robustness of the EPS system.Type: GrantFiled: March 1, 2011Date of Patent: July 9, 2013Assignee: Automotive Research & Test CenterInventors: Jin-Yan Hsu, Chih-Jung Yeh, Tsung-Hsien Hu, Hsien-Chang Chiu
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Publication number: 20130160569Abstract: 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.Type: ApplicationFiled: December 23, 2011Publication date: June 27, 2013Inventors: Chau-Chih Yu, Tsung-Hsien Hu, Chih-Jung Yeh
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Patent number: 8393232Abstract: 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.Type: GrantFiled: December 21, 2010Date of Patent: March 12, 2013Assignee: Automotive Research & Testing CenterInventors: Tsung-Hsien Hu, Chau-Chih Yu, Chih-Jung Yeh
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Publication number: 20120242173Abstract: A linear actuating device includes a track unit having an insulating sleeve made of non-metallic material and surrounding an axis, a plurality of coils mounted spacedly and sleevingly on the insulating sleeve along the axis, and a shell containing the insulating sleeve and the coils. The linear actuating device also includes a forcer unit having an elongate member extending through the insulating sleeve, having a segment configured for connecting to a vehicle shaft, and being movable along the axis relative to the insulating sleeve. The forcer unit also includes a plurality of magnets mounted spacedly relative to the axis and sleevingly on the elongate member.Type: ApplicationFiled: March 21, 2011Publication date: September 27, 2012Applicant: AUTOMOTIVE RESEARCH & TESTING CENTERInventors: Tsung-Hsien Hu, Chih-Jung Yeh
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Publication number: 20120173081Abstract: The present invention discloses a self-calibration method for an electric power steering system, which can self-calibrate the sensors to a normalized state to prevent from signal distortion, whereby to maintain stable steering sense of the driver and promote robustness and performance of the EPS system. The self-calibration method includes a signal offset compensation tactic and a zero-point signal self-calibration tactic. The present invention determines whether to undertake self-calibration according to judgement tactics, including a sensor power supply judgement tactic, a sensor correctness judgement tactic, and a self-calibration triggering condition. The self-calibration method can increase the correctness of sensors, maintain the original steering-assisting function and promote robustness of the EPS system.Type: ApplicationFiled: March 1, 2011Publication date: July 5, 2012Applicant: AUTOMOTIVE RESEARCH & TEST CENTERInventors: JIN-YAN HSU, CHIH-JUNG YEH, TSUNG-HSIEN HU, HSIEN-CHANG CHIU
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Publication number: 20120137790Abstract: 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.Type: ApplicationFiled: December 21, 2010Publication date: June 7, 2012Inventors: Tsung-Hsien Hu, Chau-Chih Yu, Chih-Jung Yeh