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公开(公告)号：US10576957B2
公开(公告)日：2020-03-03
申请号：US15497301
申请日：2017-04-26
发明人： Chih-hung Yen , Richard A. Kaatz , Steven J. Weber , John M. Moote , Patrick M. Hanley , Xiaoyu Huang
摘要： According to aspects of the present disclosure, a vehicle includes a braking system, at least one controller, and at least one memory. The braking system includes a brake fluid therein and a brake pedal. The at least one memory stores instructions that, when executed by the at least one controller, are configured to: determine, via a boiling-point module, a boiling point of a brake fluid within a braking system of a vehicle; determine, via a fluidic-properties module, fluidic properties of the brake fluid; determine, via a corrosion-inhibitor module, an amount of corrosion inhibitors within the brake fluid; determine, via a reserve-alkalinity module, a reserve alkalinity of the brake fluid; estimate, a brake-fluid life module, a remaining effective life of the brake fluid using the boiling point, the fluidic properties, the amount of corrosion inhibitors, and the reserve alkalinity; and adjust a response curve of the braking system.
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公开(公告)号：US20190186985A1
公开(公告)日：2019-06-20
申请号：US15848770
申请日：2017-12-20
发明人： Xiaoyu Huang
IPC分类号： G01G19/08 , G01M17/007 , G01G19/03
CPC分类号： G01G19/08 , B60T2250/02 , G01G19/03 , G01M17/007
摘要： A method for estimating the mass of a vehicle system includes a number of steps including a first step of providing a vehicle system having at least a powertrain and a vehicle control module. Three different mass estimates are assigned with the last mass estimate being the most accurate. The mass estimates are used in the vehicle control module calculations for vehicle control parameters in the event that the weight of the vehicle changes.
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公开(公告)号：US20190176794A1
公开(公告)日：2019-06-13
申请号：US15836226
申请日：2017-12-08
IPC分类号： B60T17/22
摘要： A braking system for a vehicle includes devices that are configured to apply braking force to a wheel in response to a braking command. A first sensor is disposed to monitor a parameter associated with the braking force, and a spatial sensor is disposed to determine a linear range between the vehicle and a predefined locus point. A controller is operatively connected to the braking system and in communication with the first sensor and the spatial sensor. The controller detects a braking event and determines a time to stop and an applied braking force during the braking event, which is integrated over the time to stop. The braking system is evaluated based upon the total stopping distance and the integrated applied braking force during the braking event. A fault associated with the braking system is determined based upon the evaluation of the braking system.
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公开(公告)号：US20170345229A1
公开(公告)日：2017-11-30
申请号：US15166756
申请日：2016-05-27
发明人： Xiaoyu Huang , Youssef A. Ghoneim
摘要： A vehicle includes a brake system configured to resist vehicle movement. The vehicle also includes at least one controller in communication with the brake system. The controller is programmed to detect an initiation of a braking event and monitor raw signal data associated with the brake system during the braking event. The controller is also programmed to generate a feature data set based on the raw signal data that is indicative of performance of at least one component of the brake system. The controller is further programmed to identify a vehicle maneuver class based on a rate of change of vehicle movement, store the feature data set and the identified vehicle maneuver class as a data vector, and transmit the data vector to a processor.
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公开(公告)号：US20190389446A1
公开(公告)日：2019-12-26
申请号：US16013203
申请日：2018-06-20
发明人： Xinyu Du , Dongyi Zhou , Mutasim A. Salman , Kevin A. Cansiani , Xiaoyu Huang , Wen-Chiao Lin
摘要： A method of identifying a fault in a friction brake actuated by hydraulic brake pressure and configured to decelerate a vehicle road wheel includes detecting, via a first sensor, a vibration at the road wheel and communicating data indicative of the detected vibration to a controller. The method additionally includes detecting, via a second sensor, upon application of the hydraulic brake pressure, a hydraulic brake pressure variation and communicating data indicative of the detected hydraulic brake pressure variation. The method additionally includes comparing, via the controller, the data indicative of the detected vibration with a threshold vibration value and the data indicative of the detected hydraulic brake pressure variation with a threshold hydraulic brake pressure value. Furthermore, the method includes generating a sensory signal indicative of the brake fault when magnitudes of the detected vibration and the detected hydraulic brake pressure variation are greater than their respective threshold values.
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公开(公告)号：US10481600B2
公开(公告)日：2019-11-19
申请号：US15705394
申请日：2017-09-15
发明人： Chih-hung Yen , Yao Hu , Yilu Zhang , Paul E. Krajewski , Steven W. Holland , Mutasim A. Salman , Xiaoyu Huang , Azeem Sarwar
摘要： Systems and method are provided for collaboration between autonomous vehicles. In one embodiment, a processor-implemented method for coordinating travel between multiple autonomous vehicles is provided. The method includes sending a collaboration request to one or more vehicles in an area to form a group to perform a mission, receiving an acceptance of the collaboration request to join the group wherein the group includes a plurality of vehicles, cooperating in assigning leading functions for the group to one or more of the plurality of vehicles in the group, cooperating in mission negotiations for the group, cooperating in determining a formation for the group, and cooperating in generating a trajectory for the group. The vehicles in the group are operated in accordance with the determined formation and generated trajectory.
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公开(公告)号：US20180370519A1
公开(公告)日：2018-12-27
申请号：US15629178
申请日：2017-06-21
摘要： A vehicle braking system including a brake pedal in communication with a wheel brake, a brake actuation system, a braking system controller, an on-board driver communication system, and a controller is described. Parameters associated with a braking request, a brake actuation command and vehicle operation are monitored during each braking event, and segmented the into parameters associated with a static portion of the braking event and parameters associated with a dynamic portion of each braking event, evaluate the parameters associated with the static portion of the braking event and evaluate the parameters associated with the dynamic portion of the braking event, and assess a state of health of the braking system based upon the evaluation of the parameters. The assessment of the state of health of the braking system is communicated to a vehicle driver via the on-board driver communication system.
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公开(公告)号：US11573119B2
公开(公告)日：2023-02-07
申请号：US16250380
申请日：2019-01-17
发明人： Xiaoyu Huang , Xueying Kang , Hualin Tan
摘要： A method for dynamically determining a mass of a vehicle including a propulsion system coupled to a drive wheel is described, and includes monitoring vehicle operating conditions, executing an event-based estimation method based upon the vehicle operating conditions to determine a first vehicle mass state, and executing a recursive estimation method based upon the vehicle operating conditions to determine a second vehicle mass state. A final vehicle mass is determined based upon the first and second vehicle mass states.
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公开(公告)号：US11220251B2
公开(公告)日：2022-01-11
申请号：US16013203
申请日：2018-06-20
发明人： Xinyu Du , Dongyi Zhou , Mutasim A. Salman , Kevin A. Cansiani , Xiaoyu Huang , Wen-Chiao Lin
摘要： A method of identifying a fault in a friction brake actuated by hydraulic brake pressure and configured to decelerate a vehicle road wheel includes detecting, via a first sensor, a vibration at the road wheel and communicating data indicative of the detected vibration to a controller. The method additionally includes detecting, via a second sensor, upon application of the hydraulic brake pressure, a hydraulic brake pressure variation and communicating data indicative of the detected hydraulic brake pressure variation. The method additionally includes comparing, via the controller, the data indicative of the detected vibration with a threshold vibration value and the data indicative of the detected hydraulic brake pressure variation with a threshold hydraulic brake pressure value. Furthermore, the method includes generating a sensory signal indicative of the brake fault when magnitudes of the detected vibration and the detected hydraulic brake pressure variation are greater than their respective threshold values.
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10.发明申请公开(公告)号：US20200339140A1
公开(公告)日：2020-10-29
申请号：US16395825
申请日：2019-04-26
发明人： Wen-Chiao Lin , Xinyu Du , Xiaoyu Huang , Paul E. Krajewski
IPC分类号： B60W50/029 , B60W50/02 , B60W10/20 , B60W10/18
摘要： System and method for controlling operation of a vehicle in real-time with a supervisory control module. A fault detection module is configured to receive respective sensor data from one or more sensors in communication with the vehicle and generate fault data. The supervisory control module includes at least one fault-tolerant controller configured to respond to a plurality of faults. The supervisory control module is configured to receive the fault data. When at least one fault is detected from the plurality of faults, the supervisory control module is configured to employ the fault-tolerant controller to generate at least one selected command. The selected command is transmitted to one or more device controllers for delivery to at least one of the respective components of the vehicle. Operation of the vehicle is controlled based in part on the selected command.
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