Patents by Inventor Yun-Jui Chung
Yun-Jui Chung 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: 10173516Abstract: A method for controlling operating modes of a hybrid powertrain mechanism including a first epicyclic train having first and second sun gears and a planetary gear couplable to these sun gears; a second epicyclic train having third and fourth sun gears and a planetary gear couplable to these sun gears; a first electric machine having one end coupled to the second sun gear; a second electric machine having one end coupled to the fourth sun gear; a first clutch having one end coupled to another end of the first electric machine; a first brake having one end coupled to another end of the first clutch and another end coupled to the third sun gear; and an engine coupled to the first sun gear. Various driving modes are provided by changing the states of the first clutch and the first brake and the operating modes of the first and second electric machines.Type: GrantFiled: May 1, 2017Date of Patent: January 8, 2019Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jui-Tang Tseng, Yun-Jui Chung, Ching-Huei Wu, Sheng-Feng Tsai
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Publication number: 20170232832Abstract: A hybrid powertrain mechanism includes: a first epicyclic train having first and second sun gears and a planetary gear to be coupled to the first and second sun gears; a second epicyclic train having third and fourth sun gears and a planetary gear to be coupled to the third and fourth sun gears; a first electric machine having one end coupled to the second sun gear; a second electric machine having one end coupled to the fourth sun gear; a first clutch having one end coupled to another end of the first electric machine; a second clutch having one end coupled to another end of the first clutch and another end coupled to the third sun gear; and an engine coupled to the first sun gear. Various driving modes are provided by changing the states of the first and second clutches and the operating modes of the first and second electric machines.Type: ApplicationFiled: May 1, 2017Publication date: August 17, 2017Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jui-Tang TSENG, Yun-Jui CHUNG, Ching-Huei WU, Sheng-Feng TSAI
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Patent number: 9676266Abstract: A hybrid powertrain mechanism includes: a first epicyclic train having first and second sun gears and a planetary gear to be coupled to the first and second sun gears; a second epicyclic train having third and fourth sun gears and a planetary gear to be coupled to the third and fourth sun gears; a first electric machine having one end coupled to the second sun gear; a second electric machine having one end coupled to the fourth sun gear; a first clutch having one end coupled to another end of the first electric machine; a second clutch having one end coupled to another end of the first clutch and another end coupled to the third sun gear; and an engine coupled to the first sun gear. Various driving modes are provided by changing the states of the first and second clutches and the operating modes of the first and second electric machines.Type: GrantFiled: November 19, 2015Date of Patent: June 13, 2017Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jui-Tang Tseng, Yun-jui Chung, Ching-Huei Wu, Sheng-Feng Tsai
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Publication number: 20160176281Abstract: A hybrid powertrain mechanism includes: a first epicyclic train having first and second sun gears and a planetary gear to be coupled to the first and second sun gears; a second epicyclic train having third and fourth sun gears and a planetary gear to be coupled to the third and fourth sun gears; a first electric machine having one end coupled to the second sun gear; a second electric machine having one end coupled to the fourth sun gear; a first clutch having one end coupled to another end of the first electric machine; a second clutch having one end coupled to another end of the first clutch and another end coupled to the third sun gear; and an engine coupled to the first sun gear. Various driving modes are provided by changing the states of the first and second clutches and the operating modes of the first and second electric machines.Type: ApplicationFiled: November 19, 2015Publication date: June 23, 2016Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jui-Tang TSENG, Yun-jui CHUNG, Ching-Huei WU, Sheng-Feng TSAI
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Patent number: 8974340Abstract: A hybrid mechanism is provided, including: an engine, a first motor, a second motor, a clutch, a hybrid unit, a differential, and a battery. The clutch, the second motor and the engine are sequentially coupled to one end of the hybrid unit, and the first motor and the battery are coupled to the other end of the hybrid mechanism. The battery provides supplying currents to the first motor or the second motor or receives range-extend currents from the second motor. The hybrid unit includes a first sun gear, a second sun gear, at least one planetary gear coupled to the first and second sun gears, and a planet carrier coupled to the at least one planetary gear. The hybrid mechanism has four modes. The hybrid unit harmonizes the first driving force from the first motor and the engine and the second driving force from the second motor and outputs a harmonized driving force to the differential.Type: GrantFiled: December 4, 2013Date of Patent: March 10, 2015Assignee: Industrial Technology Research InstituteInventors: Yun-Jui Chung, Ching-Huei Wu, Sheng-Feng Tsai
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Publication number: 20140228160Abstract: A hybrid mechanism is provided, including: an engine, a first motor, a second motor, a clutch, a hybrid unit, a differential, and a battery. The clutch, the second motor and the engine are sequentially coupled to one end of the hybrid unit, and the first motor and the battery are coupled to the other end of the hybrid mechanism. The battery provides supplying currents to the first motor or the second motor or receives range-extend currents from the second motor. The hybrid unit includes a first sun gear, a second sun gear, at least one planetary gear coupled to the first and second sun gears, and a planet carrier coupled to the at least one planetary gear. The hybrid mechanism has four modes. The hybrid unit harmonizes the first driving force from the first motor and the engine and the second driving force from the second motor and outputs a harmonized driving force to the differential.Type: ApplicationFiled: December 4, 2013Publication date: August 14, 2014Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yun-Jui CHUNG, Ching-Huei WU, Sheng-Feng TSAI
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Patent number: 8177521Abstract: A system and method for monitoring and controlling oil return to a compressor, characterized by monitoring and controlling oil level, oil temperature, and compressor outlet pressure, so as to determine whether the oil level is lower than a predetermined level threshold, whether the temperature in the lubricating oil box is lower than a predetermined temperature threshold, and whether the compressor outlet pressure exceeds a predetermined pressure threshold, so as to control the flow of lubricating oil returned to the oil box by controlling the valve opening of the oil return valve according to a non-segmentation principle or a segmentation principle, ensure sufficient lubricating oil in the oil box, and enhance efficiency of the system.Type: GrantFiled: March 24, 2009Date of Patent: May 15, 2012Assignee: Industrial Technology Research InstituteInventors: Chun-Han Chen, Chung-Ping Chiang, Ching-Fu Chen, Yun-Jui Chung, Yen-Chieh Wang
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Patent number: 7841825Abstract: A method for predicting surge in a compressor is provided, which is applicable to a cooling apparatus equipped with a centrifugal compressor. A set of highest outlet pressure values is obtained by a performance test performed on the centrifugal compressor. A coolant flow rate value and an opening percentage value of inlet guide vanes of the centrifugal compressor are measured. An outlet pressure value of the centrifugal compressor is calculated with an equation using the measured coolant flow rate value and the measured opening percentage value. The outlet pressure value is compared with one of the highest outlet pressure values corresponding to the measured opening percentage value, and if the outlet pressure value is larger than or equal to the highest corresponding outlet pressure value, it confirms imminent surge in the centrifugal compressor, so as to provide a basis of preparation for surge elimination.Type: GrantFiled: February 27, 2007Date of Patent: November 30, 2010Assignee: Industrial Technology Research InstituteInventors: Chun-Han Chen, Chung-Ping Chiang, Jiing-Fu Chen, Chung-Che Liu, Yun-Jui Chung
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Publication number: 20100196170Abstract: A system and method for monitoring and controlling oil return to a compressor, characterized by monitoring and controlling oil level, oil temperature, and compressor outlet pressure, so as to determine whether the oil level is lower than a predetermined level threshold, whether the temperature in the lubricating oil box is lower than a predetermined temperature threshold, and whether the compressor outlet pressure exceeds a predetermined pressure threshold, so as to control the flow of lubricating oil returned to the oil box by controlling the valve opening of the oil return valve according to a non-segmentation principle or a segmentation principle, ensure sufficient lubricating oil in the oil box, and enhance efficiency of the system.Type: ApplicationFiled: March 24, 2009Publication date: August 5, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chun-Han CHEN, Chung-Ping CHIANG, Ching-Fu CHEN, Yun-Jui CHUNG, Yen-Chieh WANG
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Publication number: 20080101914Abstract: A method for predicting surge in a compressor is provided, which is applicable to a cooling apparatus equipped with a centrifugal compressor. A set of highest outlet pressure values is obtained by a performance test performed on the centrifugal compressor. A coolant flow rate value and an opening percentage value of inlet guide vanes of the centrifugal compressor are measured. An outlet pressure value of the centrifugal compressor is calculated with an equation using the measured coolant flow rate value and the measured opening percentage value. The outlet pressure value is compared with one of the highest outlet pressure values corresponding to the measured opening percentage value, and if the outlet pressure value is larger than or equal to the highest corresponding outlet pressure value, it confirms imminent surge in the centrifugal compressor, so as to provide a basis of preparation for surge elimination.Type: ApplicationFiled: February 27, 2007Publication date: May 1, 2008Inventors: Chun-Han Chen, Chung-Ping Chiang, Jiing-Fu Chen, Chung-Che Liu, Yun-Jui Chung