-
公开(公告)号：US11209290B2
公开(公告)日：2021-12-28
申请号：US16030245
申请日：2018-07-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Gary L. Hess , Kirk A. Lillestolen
Abstract: A resolver system includes a rotatable primary winding, a secondary winding fixed relative to the rotatable primary winding, a tertiary winding fixed relative to the rotatable primary winding and positioned π/2 radians out of phase with respect to the fixed secondary winding, an excitation module electrically connected to the rotatable primary winding and configured to provide an excitation signal to the rotatable primary winding where the excitation signal is an alternating current waveform having a fundamental frequency, and a controller electrically connected to the secondary winding and configured to sample a voltage across the secondary winding at 18 times the fundamental frequency, sample a voltage across the tertiary winding at 18 times the fundamental frequency, and determine an amplitude of the fundamental frequency based on the sampled voltages across the secondary and tertiary windings, where the alternating current waveform includes a third harmonic frequency.
-
2.发明授权公开(公告)号：US10564209B2
公开(公告)日：2020-02-18
申请号：US15482157
申请日：2017-04-07
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Gary L. Hess , Eric Petersen
Abstract: Embodiments herein relate to a system and method for detecting an open circuit in a sensor measurement system. The system including a sensor having a direct current (DC) output, operably connected to a wiring harness and configured to transmit a sensor signal, and a controller, the controller operably connected to the wiring harness. The controller is configured execute a method including receiving a sensor signal from the sensor, AC coupling an AC signal with the sensor signal to form a coupled signal, measuring the coupled signal, determining if an open circuit is present based on the coupled signal and characterizing the sensor as failed if the open circuit is detected.
-
公开(公告)号：US20170299409A1
公开(公告)日：2017-10-19
申请号：US15131706
申请日：2016-04-18
Applicant: Hamilton Sundstrand Corporation
Inventor： Gary L. Hess , Kanwalpreet Reen
IPC: G01D5/22
Abstract: A resolver system includes a rotatable primary winding, a secondary winding fixed relative to the primary winding, and an analog-to-digital converter electrically connected to the secondary winding. A control module is operatively connected to analog-to-digital converter and is responsive to instructions to apply an excitation voltage with an oscillating waveform to the primary winding, induce a secondary voltage using the secondary winding using the excitation voltage, and acquire a plurality of voltage measurements from the secondary winding separated by a time interval corresponding to π/3 of the excitation voltage oscillating waveform.
-
公开(公告)号：US20160306375A1
公开(公告)日：2016-10-20
申请号：US14690646
申请日：2015-04-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Gary L. Hess , Kirk A. Lillestolen
IPC: G05F3/02
CPC classification number: G05F3/02 , H01H1/605 , H01R43/002
Abstract: A process for automated contact wetting in a sensor circuit includes generating a first current through a contact by sequencing a first circuit on, the first current exceeding a wetting threshold of the contact, and reducing current through the contact to a second current by sequencing a second circuit on, the second current being below the wetting threshold.
Abstract translation: 在传感器电路中自动接触润湿的过程包括通过对第一电路进行排序来产生通过接触的第一电流，第一电流超过接触的润湿阈值，并且通过将第二电流的电流排序为第二电流 电路导通，第二电流低于润湿阈值。
-
公开(公告)号：US08786361B1
公开(公告)日：2014-07-22
申请号：US13789813
申请日：2013-03-08
Applicant: Hamilton Sundstrand Corporation
Inventor： Gary L. Hess
CPC classification number: H03K17/145 , G01D3/028
Abstract: An analog interface processing circuit includes a first and second signal processing interface, a processing system connected to the first and second signal processing interfaces, a biasing voltage source switchably coupled to said first signal processing interface via a first switch assembly and switchably coupled to said second signal processing interface via a second switch assembly, and a first control output of said processing system controllably coupled to said first switch assembly and a second control output of said processing system controllably couple to said second switch assembly.
Abstract translation: 模拟接口处理电路包括第一和第二信号处理接口，连接到第一和第二信号处理接口的处理系统，经由第一开关组件可切换地耦合到所述第一信号处理接口的偏置电压源，并可切换地耦合到所述第二信号处理接口 经由第二开关组件的信号处理接口以及可控制地耦合到所述第一开关组件的所述处理系统的第一控制输出和所述处理系统的可控制地耦合到所述第二开关组件的第二控制输出。
-
Patent Agency Ranking
公开(公告)号：US20230266354A1
公开(公告)日：2023-08-24
申请号：US17675878
申请日：2022-02-18
Applicant: Hamilton Sundstrand Corporation
Inventor： Gary L. Hess , Eric Petersen
IPC: G01P3/46
CPC classification number: G01P3/46
Abstract: A sensor system can include a sensor configured to output a sensor signal having a waveform output with noise and a peak detector module configured to receive the waveform output from the sensor and to detect a peak amplitude of the waveform output. The peak detector module can be configured to output a peak amplitude signal. The system can include a threshold module configured to receive the peak amplitude signal and to calculate a cutoff threshold based on the peak amplitude signal. The threshold module can be configured to output a cutoff threshold signal. The system can include a comparator operatively connected to the sensor and the threshold module. The comparator can be configured to receive the sensor signal and the cutoff threshold signal to compare the sensor signal and the cutoff signal. The comparator can be configured to output a high signal or a low signal based on the comparison of the sensor signal and the cutoff threshold signal which changes as a function of the peak amplitude of the sensor signal.
-
公开(公告)号：US11300986B2
公开(公告)日：2022-04-12
申请号：US17175583
申请日：2021-02-12
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael A. Wilson , Steven A. Avritch , Gary L. Hess
Abstract: A system comprises a first current balancer and a second current balancer. Each of the first and second current balancers includes a first input line for a first voltage source connected to a first output, a second input line for a second voltage source connected to a second output and is in parallel with the first input line, a first series pass element connected in series with the first input line, and a second series pass element connected in series with the second input line. The system further includes a controller operatively connected to the first series pass element and to the second series pass element to throttle at least one of the first series pass element and the second series pass element to balance output current in the first and second outputs.
-
公开(公告)号：US20210190840A1
公开(公告)日：2021-06-24
申请号：US16722257
申请日：2019-12-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael A. Wilson , Gary L. Hess
Abstract: Systems, methods, and computer program products for sinusoidal nulling are provided. Aspects include transmitting, by a controller, an excitation signal to a first sensor, determining, by the controller, a target harmonic based at least on one or more characteristics of the excitation signal, receiving a return signal from the first sensor, sampling the return signal at a first sample rate based on the target harmonic, and adjusting a phase of the sampled return signal to null the target harmonic amplitude to form an adjusted return signal.
-
公开(公告)号：US10222239B2
公开(公告)日：2019-03-05
申请号：US15487819
申请日：2017-04-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Kirk A. Lillestolen , Gary L. Hess
Abstract: A system for detecting a position of a dual solenoid device includes device configured to move between first and second positions, and a controller. The controller has first and second monitoring circuits in operable communication with first and second channels, respectively. The first and second channels are in operable communication with first and second solenoids, respectively. Each solenoid is configured to selectively operate as an active solenoid to move the device when the solenoid and its respective channel are in an active mode, and as a passive solenoid when the solenoid and its respective channel are in a passive mode to passively move with the active solenoid. Each of the monitoring circuits is configured to determine a position of the device when the channel the monitoring circuit is associated with is operating in the passive mode by monitoring an electrical parameter of the passive solenoid associated with that channel.
-
公开(公告)号：US20180364070A1
公开(公告)日：2018-12-20
申请号：US16114478
申请日：2018-08-28
Applicant: Hamilton Sundstrand Corporation
Inventor： Kirk A. Lillestolen , Gary L. Hess
Abstract: A system for detecting a position of a dual solenoid device includes device configured to move between first and second positions, and a controller. The controller has first and second monitoring circuits in operable communication with first and second channels, respectively. The first and second channels are in operable communication with first and second solenoids, respectively. Each solenoid is configured to selectively operate as an active solenoid to move the device when the solenoid and its respective channel are in an active mode, and as a passive solenoid when the solenoid and its respective channel are in a passive mode to passively move with the active solenoid. Each of the monitoring circuits is configured to determine a position of the device when the channel the monitoring circuit is associated with is operating in the passive mode by monitoring an electrical parameter of the passive solenoid associated with that channel.
-
-
-
-
-
-
-
-
-
Search Results
46
records
(took 0.016 seconds)
