Patents by Inventor Xingye Zhang
Xingye Zhang 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).
-
Patent number: 11753071Abstract: A method for monitoring vehicle inertia parameters in real-time includes receiving at least one lateral dynamic value. The method also includes calculating at least one vehicle inertia parameter value using the at least one lateral dynamic value. The method also include determining a difference between the calculated at least one vehicle inertia parameter value and a corresponding baseline vehicle inertia parameter value. The method also includes, based on a comparison between the difference between the calculated at least one vehicle inertia parameter value and the corresponding baseline vehicle inertia parameter value and a threshold, selectively controlling at least one vehicle operation based on the calculated at least one vehicle inertia parameter value.Type: GrantFiled: January 18, 2020Date of Patent: September 12, 2023Assignee: Steering Solutions IP Holding CorporationInventors: Xingye Zhang, Apurv Naman
-
Patent number: 11572095Abstract: Technical solutions described herein include a method of controlling, in an electric power steering system, a steering angle according to a target steering angle by computing an initial value of an integral control term in a proportional integral derivative (PID) control loop used to calculate a control output signal, such as a motor torque command. The initial value of the integral control term is computed as a negative of the initial value of the feedforward term minus the initial value of the feedback term. The initial value of the integral control term corresponds to an initial value of a control output. Accordingly, the technical solutions described herein facilitate handling non-zero initial condition in Electric Power Steering angle control.Type: GrantFiled: December 20, 2019Date of Patent: February 7, 2023Assignee: Steering Solutions IP Holding CorporationInventors: Xingye Zhang, Anthony Champagne
-
Patent number: 11492041Abstract: Technical solutions described herein include a method of controlling, in an electric power steering system, a steering angle according to a target steering angle by computing an initial value of an integral control term in a proportional integral derivative (PID) control loop used to calculate a control output signal, such as a motor torque command. The initial value of the integral control term is computed as a negative of the initial value of the feedforward term minus the initial value of the feedback term. The initial value of the integral control term corresponds to an initial value of a control output. Accordingly, the technical solutions described herein facilitate handling non-zero initial condition in Electric Power Steering angle control.Type: GrantFiled: December 20, 2019Date of Patent: November 8, 2022Assignee: Steering Solutions IP Holding CorporationInventors: Xingye Zhang, Anthony Champagne
-
Patent number: 11254345Abstract: According to one or more embodiments, a steer by wire steering system includes a handwheel, and a handwheel actuator configured to secure a position of the handwheel. The securing includes determining a transition of the steer by wire steering system to an ingress/egress mode. The securing further includes, based on the determination that the steer by wire steering system is in the ingress/egress mode, computing a holding torque command based on a difference in a present angle of the handwheel and a target angle of the handwheel, which is caused by an input torque. Further, the securing includes generating a holding torque corresponding to the holding torque command to secure the position of the handwheel.Type: GrantFiled: January 29, 2019Date of Patent: February 22, 2022Assignee: Steering Solutions IP Holding CorporationInventors: Kai Zheng, Hemant K. Sharma, Xingye Zhang, Mariam Swetha George
-
Publication number: 20210221432Abstract: A method for monitoring vehicle inertia parameters in real-time includes receiving at least one lateral dynamic value. The method also includes calculating at least one vehicle inertia parameter value using the at least one lateral dynamic value. The method also include determining a difference between the calculated at least one vehicle inertia parameter value and a corresponding baseline vehicle inertia parameter value. The method also includes, based on a comparison between the difference between the calculated at least one vehicle inertia parameter value and the corresponding baseline vehicle inertia parameter value and a threshold, selectively controlling at least one vehicle operation based on the calculated at least one vehicle inertia parameter value.Type: ApplicationFiled: January 18, 2020Publication date: July 22, 2021Inventors: Xingye Zhang, Apurv Naman
-
Patent number: 10848093Abstract: According to one or more embodiments, a motor control system includes a first controller computing a first torque command using a first closed loop. The motor control system further includes a second controller computing a second torque command using a second closed loop. Both, the first controller and the second controller, compute the respective first torque command and the second torque command using a uniform calculation in which a pseudo/leaky integrator Ki s + ? in s domain (s is Laplace variable) is used and integrator state is calculated as Ki*?0te(?)exp(????t)d?, in time domain, which is implemented by discretization methods in electric control unit (ECU), where e is a tracking error, Ki is a predetermined integral parameter, and ? is a configurable parameter. The motor control system further includes a motor that receives a torque command for generating corresponding amount of torque based on the first torque command and the second torque command.Type: GrantFiled: August 30, 2018Date of Patent: November 24, 2020Assignee: Steering Solutions IP Holding CorporationInventors: Xingye Zhang, Kai Zheng, Chethan Narayanaswamy
-
Publication number: 20200277006Abstract: Technical solutions described herein include a method of controlling, in an electric power steering system, a steering angle according to a target steering angle by computing an initial value of an integral control term in a proportional integral derivative (PID) control loop used to calculate a control output signal, such as a motor torque command. The initial value of the integral control term is computed as a negative of the initial value of the feedforward term minus the initial value of the feedback term. The initial value of the integral control term corresponds to an initial value of a control output. Accordingly, the technical solutions described herein facilitate handling non-zero initial condition in Electric Power Steering angle control.Type: ApplicationFiled: December 20, 2019Publication date: September 3, 2020Inventors: Xingye Zhang, Anthony Champagne
-
Publication number: 20200239061Abstract: According to one or more embodiments, a steer by wire steering system includes a handwheel, and a handwheel actuator configured to secure a position of the handwheel. The securing includes determining a transition of the steer by wire steering system to an ingress/egress mode. The securing further includes, based on the determination that the steer by wire steering system is in the ingress/egress mode, computing a holding torque command based on a difference in a present angle of the handwheel and a target angle of the handwheel, which is caused by an input torque. Further, the securing includes generating a holding torque corresponding to the holding torque command to secure the position of the handwheel.Type: ApplicationFiled: January 29, 2019Publication date: July 30, 2020Inventors: Kai Zheng, Hemant K. Sharma, Xingye Zhang, Mariam Swetha George
-
Publication number: 20200076343Abstract: According to one or more embodiments, a motor control system includes a first controller computing a first torque command using a first closed loop. The motor control system further includes a second controller computing a second torque command using a second closed loop. Both, the first controller and the second controller, compute the respective first torque command and the second torque command using a uniform calculation in which a pseudo/leaky integrator Ki s + ? in s domain (s is Laplace variable) is used and integrator state is calculated as Ki * ?0te(?)exp(????t)d?, in time domain, which is implemented by discretization methods in electric control unit (ECU), where e is a tracking error, Ki is a predetermined integral parameter, and E is a configurable parameter. The motor control system further includes a motor that receives a torque command for generating corresponding amount of torque based on the first torque command and the second torque command.Type: ApplicationFiled: August 30, 2018Publication date: March 5, 2020Inventors: Xingye Zhang, Kai Zheng, Chethan Narayanaswamy
-
Patent number: 10562561Abstract: An embodiment of a method of controlling one or more components of a vehicle includes receiving a reference steering command and one or more measurement signals related to a steering system of a vehicle, and estimating, by a processing device, a state of the steering system based on the one or more measurement signals, the steering system including at least a handwheel and a steering motor. The method also includes determining a maximum state achievable by the steering system at one or more times subsequent to receiving the one or more measurement signals, and controlling, by a control module, the steering system based on the steering reference command and the maximum state.Type: GrantFiled: April 25, 2017Date of Patent: February 18, 2020Assignee: STEERING SOLUTIONS IP HOLDING CORPORATIONInventors: Qi Wang, Xingye Zhang, Tejas M. Varunjikar, Anthony J. Champagne
-
Patent number: 10471513Abstract: The present invention discloses a method for preparing nano-copper powder, comprising: (1) providing a dispersion solution, containing copper salt precursor and disperser, the disperser is dissoluble in both water and weak solvents, and is an acrylic modified polyurethane disperser; (2) providing a reducer dispersion solution, containing reducer, the reducer is organic borane; (3) contacting the reducer dispersion solution with the dispersion solution in a condition enough to reduce the copper salt precursor by the reducer into elementary copper; (4) separating copper nano-particles from reaction solution obtained by step (3), and drying separated copper nano-particles by spray drying, so as to obtain the nano-copper powder. The nano-copper powder prepared by the method in accordance with the present invention is dispersible in both water and environment-friendly weak solvents, which can be used to prepare weak solvent-type electrically conductive ink.Type: GrantFiled: December 30, 2015Date of Patent: November 12, 2019Assignee: Institute of Chemistry, Chinese Academy of SciencesInventors: Xingye Zhang, Yanlin Song
-
Patent number: 10329445Abstract: A method for preparing nano-silver powder dispersible in environment friendly weak solvents, and an electrically conductive ink comprising the nano-silver powder are disclosed. The disclosure describes a disperser dissoluble in water and weak solvents and an alcohol amine as reducing agent to prepare mono-dispersed nano-silver, and employs ultrafiltration for purification and spray drying process to obtain a nano-silver powder dispersible in weak solvents, and thereby obtain an eco-solvent nano-silver electrically conductive ink. The electrically conductive ink in accordance with the disclosure has advantages of high safety, low volatility, low toxicity, high flash point, resistant to ultraviolet radiation and moisture etc., and can be used with uncoated bearing substrates, and is suitable for use in outdoor environments.Type: GrantFiled: December 2, 2015Date of Patent: June 25, 2019Assignee: Institute Of Chemistry, Chinese Academy of SciencesInventors: Xingye Zhang, Yanlin Song
-
Publication number: 20170305458Abstract: An embodiment of a method of controlling one or more components of a vehicle includes receiving a reference steering command and one or more measurement signals related to a steering system of a vehicle, and estimating, by a processing device, a state of the steering system based on the one or more measurement signals, the steering system including at least a handwheel and a steering motor. The method also includes determining a maximum state achievable by the steering system at one or more times subsequent to receiving the one or more measurement signals, and controlling, by a control module, the steering system based on the steering reference command and the maximum state.Type: ApplicationFiled: April 25, 2017Publication date: October 26, 2017Inventors: Qi Wang, Xingye Zhang, Tejas M. Varunjikar, Anthony J. Champagne
-
Publication number: 20160184900Abstract: The present invention discloses a method for preparing nano-copper powder. The method disclosed in the present invention comprises: (1) providing a dispersion solution, the dispersion solution contains at least one copper salt precursor and at least one disperser, the disperser is dissoluble in both water and weak solvents; (2) providing a reducer dispersion solution, the reducer dispersion solution contains at least one reducer; (3) contacting the reducer dispersion solution with the dispersion solution provided by step (1) in a condition enough to reduce the copper salt precursor by the reducer into elementary copper; (4) separating copper nano-particles from reaction solution obtained by step (3), and drying separated copper nano-particles by spray drying, so as to obtain the nano-copper powder. The nano-copper powder prepared by the method in accordance with the present invention is dispersible in both water and environment-friendly weak solvents.Type: ApplicationFiled: December 30, 2015Publication date: June 30, 2016Applicant: Institute of Chemistry, Chinese Academy of SciencesInventors: Xingye Zhang, Yanlin Song
-
Publication number: 20160152851Abstract: A method for preparing nano-silver powder dispersible in environment friendly weak solvents, and an electrically conductive ink comprising the nano-silver powder are disclosed. The disclosure describes a disperser dissoluble in water and weak solvents and an alcohol amine as reducing agent to prepare mono-dispersed nano-silver, and employs ultrafiltration for purification and spray drying process to obtain a nano-silver powder dispersible in weak solvents, and thereby obtain an eco-solvent nano-silver electrically conductive ink. The electrically conductive ink in accordance with the disclosure has advantages of high safety, low volatility, low toxicity, high flash point, resistant to ultraviolet radiation and moisture etc., and can be used with uncoated bearing substrates, and is suitable for use in outdoor environments.Type: ApplicationFiled: December 2, 2015Publication date: June 2, 2016Applicant: Institute of Chemistry, Chinese Academy of SciencesInventors: Xingye Zhang, Yanlin Song