Patents by Inventor Alberto Martinez, Jr.
Alberto Martinez, Jr. 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: 8571774Abstract: One disclosed embodiment relates to a propulsion system for a machine. The propulsion system may include a prime mover operatively connected through a continuously variable transmission to a propulsion device. The propulsion system may also include propulsion-system controls that control an operating parameter of the continuously variable transmission, which may include adjusting the operating parameter based on operator input. Controlling the operating parameter may also include determining an adjustment limit for the operating parameter based on one or more operating conditions and applying the adjustment limit to the operating parameter to modify at least one of acceleration and jerk of the machine based on the one or more operating conditions.Type: GrantFiled: November 26, 2012Date of Patent: October 29, 2013Assignee: Caterpillar Inc.Inventors: Kristofor Lee Dahl, Brian Douglas Hoff, Richard George Ingram, Michael Anthony Spielman, Jr., Benjamin B. Schmuck, Alberto Martinez, Jr., Yaang Zhao
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Patent number: 8352138Abstract: A continuously variable transmission is provided having a driven element. The continuously variable transmission also has a first operator input device configured to transmit a first displacement signal corresponding to a displacement of the first operator input device. The continuously variable transmission further has a second operator input device configured to transmit a second displacement signal corresponding to a displacement of the second operator input device. In addition, the continuously variable transmission has a third operator input device configured to transmit a transmission operating mode request. Furthermore, the continuously variable transmission has at least one sensor configured to sense at least one parameter indicative of an operating condition of the transmission.Type: GrantFiled: November 30, 2007Date of Patent: January 8, 2013Assignee: Caterpillar Inc.Inventors: Kristofor Lee Dahl, Richard George Ingram, Michael Anthony Spielman, Jr., Alberto Martinez, Jr., Yaang Zhao, Ellen Jean Hoffman
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Patent number: 8321105Abstract: One disclosed embodiment relates to a propulsion system for a machine. The propulsion system may include a prime mover operatively connected through a continuously variable transmission to a propulsion device. The propulsion system may also include propulsion-system controls that control an operating parameter of the continuously variable transmission, which may include adjusting the operating parameter based on operator input. Controlling the operating parameter may also include determining an adjustment limit for the operating parameter based on one or more operating conditions and applying the adjustment limit to the operating parameter to modify at least one of acceleration and jerk of the machine based on the one or more operating conditions.Type: GrantFiled: October 31, 2007Date of Patent: November 27, 2012Assignee: Caterpillar Inc.Inventors: Kristofor Lee Dahl, Brian Douglas Hoff, Richard George Ingram, Michael Anthony Spielman, Jr., Benjamin B. Schmuck, Alberto Martinez, Jr., Yaang Zhao
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Patent number: 8216109Abstract: A continuously variable transmission is provided having a driven element. The continuously variable transmission also has at least one operator input device configured to transmit a transmission operating mode request and at least one other operator input device configured to transmit a driven element output request. In addition, the continuously variable transmission has at least one sensor configured to sense at least one parameter indicative of an operating condition of the transmission. The continuously variable transmission further has a controller configured to regulate an output of the driven element in response to the operating mode request, the driven element output request, and the at least one sensed parameter indicative of an operating condition of the transmission.Type: GrantFiled: September 28, 2007Date of Patent: July 10, 2012Assignee: Caterpillar Inc.Inventors: Kristofor Lee Dahl, Brian Douglas Hoff, Richard George Ingram, Michael Anthony Spielman, Jr., Benjamin B. Schmuck, Alberto Martinez, Jr., Yaang Zhao
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Patent number: 7660657Abstract: A system and method for largely controlling transmission gear ratio oscillation is disclosed. When shifts are executed substantially at synchronous points rendering hysteretic anti-hunting schemes impractical, the disclosed techniques in any combination thereof may allow for oscillation control via an overridable lock-out timer. For oscillation control during incline navigation and other similar loading scenarios, the transmission may be selectively locked if certain operational criteria are met.Type: GrantFiled: June 29, 2007Date of Patent: February 9, 2010Assignee: Caterpillar Inc.Inventors: Frank A DeMarco, Brian D Kuras, Alberto Martinez, Jr.
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Patent number: 7641588Abstract: A continuously variable transmission control system is disclosed. The control system has a first operator input device to receive operator input and produce a corresponding first signal indicative of a selected one of a plurality of available predetermined discrete machine travel speed ranges. The control system also has a second operator input device to receive operator input and produce a corresponding second signal indicative of desired machine travel. The control system also has a power source operatively coupled to drive a continuously-variable transmission, and a controller configured to regulate at least one of an output of the power source and an output of the continuously variable transmission in response to the first and second signals such that an actual machine travel speed remains within the selected one of the plurality of predetermined discrete machine travel speed ranges.Type: GrantFiled: January 31, 2007Date of Patent: January 5, 2010Assignee: Caterpillar Inc.Inventors: Norval P. Thomson, Alberto Martinez, Jr.
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Publication number: 20090143948Abstract: A continuously variable transmission is provided having a driven element. The continuously variable transmission also has a first operator input device configured to transmit a first displacement signal corresponding to a displacement of the first operator input device. The continuously variable transmission further has a second operator input device configured to transmit a second displacement signal corresponding to a displacement of the second operator input device. In addition, the continuously variable transmission has a third operator input device configured to transmit a transmission operating mode request. Furthermore, the continuously variable transmission has at least one sensor configured to sense at least one parameter indicative of an operating condition of the transmission.Type: ApplicationFiled: November 30, 2007Publication date: June 4, 2009Inventors: Kristofor Lee Dahl, Richard George Ingram, Michael Anthony Spielman, JR., Alberto Martinez, JR., Yaang Zhao, Ellen Jean Hoffman
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Publication number: 20090112424Abstract: One disclosed embodiment relates to a propulsion system for a machine. The propulsion system may include a prime mover operatively connected through a continuously variable transmission to a propulsion device. The propulsion system may also include propulsion-system controls that control an operating parameter of the continuously variable transmission, which may include adjusting the operating parameter based on operator input. Controlling the operating parameter may also include determining an adjustment limit for the operating parameter based on one or more operating conditions and applying the adjustment limit to the operating parameter to modify at least one of acceleration and jerk of the machine based on the one or more operating conditions.Type: ApplicationFiled: October 31, 2007Publication date: April 30, 2009Inventors: Kristofor Lee Dahl, Brian Douglas Hoff, Richard George Ingram, Michael Anthony Spielman, JR., Benjamin B. Schmuck, Alberto Martinez, JR., Yaang Zhao
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Publication number: 20090088295Abstract: A continuously variable transmission is provided having a driven element. The continuously variable transmission also has at least one operator input device configured to transmit a transmission operating mode request and at least one other operator input device configured to transmit a driven element output request. In addition, the continuously variable transmission has at least one sensor configured to sense at least one parameter indicative of an operating condition of the transmission. The continuously variable transmission further has a controller configured to regulate an output of the driven element in response to the operating mode request, the driven element output request, and the at least one sensed parameter indicative of an operating condition of the transmission.Type: ApplicationFiled: September 28, 2007Publication date: April 2, 2009Inventors: Kristofor Lee Dahl, Brian Douglas Hoff, Richard George Ingram, Michael Anthony Spielman, JR., Benjamin B. Schmuck, Alberto Martinez, JR., Yaang Zhao
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Publication number: 20090005941Abstract: A system and method for largely controlling transmission gear ratio oscillation is disclosed. When shifts are executed substantially at synchronous points rendering hysteretic anti-hunting schemes impractical, the disclosed techniques in any combination thereof may allow for oscillation control via an overridable lock-out timer. For oscillation control during incline navigation and other similar loading scenarios, the transmission may be selectively locked if certain operational criteria are met.Type: ApplicationFiled: June 29, 2007Publication date: January 1, 2009Applicant: Caterpillar Inc.Inventors: Frank A. DeMarco, Brian D. Kuras, Alberto Martinez, JR.