Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12275466 | Providing assist torque in steering systems operating without a torque sensor | Tejas M. Varunjikar, Michael S. Wyciechowski, Rangarajan Ramanujam | 2025-04-15 |
| 11834108 | Dynamic vehicle model based assist without torque sensor | Rangarajan Ramanujam, Mariam Swetha George | 2023-12-05 |
| 11572095 | Method and system for electronic power steering angle control with non-zero initial condition | Xingye Zhang | 2023-02-07 |
| 11511796 | Steering system with damping dependent scaling for wheel imbalance induced vibration reduction | Apurv Naman, Rangarajan Ramanujam | 2022-11-29 |
| 11377143 | Steering system with failsafe torque sensor communication | Keyur R. Patel, Tejas M. Varunjikar | 2022-07-05 |
| 11294642 | Middleware system and method | Rangarajan Ramanujam, Michael R. Story, Owen K. Tosh | 2022-04-05 |
| 11186310 | Frequency tracking based friction detection using accelerometer | Bhuvanesh Sainath, Rangarajan Ramanujam | 2021-11-30 |
| 11117614 | Real-time stability monitoring in steering systems | Qi Wang, Tejas M. Varunjikar, Michael K. Hales | 2021-09-14 |
| 10793188 | High bandwidth universal electric steering system controller | Harshwardhan D. Karve, Jens Dittmer | 2020-10-06 |
| 10604175 | Steering system with failsafe torque sensor communication | Keyur R. Patel, Tejas M. Varunjikar | 2020-03-31 |
| 10569801 | Payload estimation using electric power steering signals | Tejas M. Varunjikar | 2020-02-25 |
| 10562561 | Electrical power steering control using system state predictions | Qi Wang, Xingye Zhang, Tejas M. Varunjikar | 2020-02-18 |
| 10464594 | Model based driver torque estimation | Bo Yu, Tejas M. Varunjikar, Timothy W. Kaufmann | 2019-11-05 |
| 10399597 | Payload estimation using electric power steering signals | Tejas M. Varunjikar, Qi Wang | 2019-09-03 |
| 10336363 | Disabling controlled velocity return based on torque gradient and desired velocity error | Chang Wang, Michael K. Hales | 2019-07-02 |
| 10322746 | Velocity estimation for electric power steering systems | Qi Wang, Prerit Pramod | 2019-06-18 |
| 10155531 | Providing assist torque without hand wheel torque sensor | Timothy W. Kaufmann, Kathryn L. Pattok, Tejas M. Varunjikar | 2018-12-18 |
| 10155534 | Driver intent estimation without using torque sensor signal | Tejas M. Varunjikar | 2018-12-18 |
| 10144445 | Modified static tire model for providing assist without a torque sensor for zero to low vehicle speeds | Tejas M. Varunjikar | 2018-12-04 |
| 9862411 | Wheel imbalance rejection module | Joel E. Birsching, Michael K. Hales | 2018-01-09 |
| 9676409 | Road wheel disturbance rejection based on hand wheel acceleration | Tejas M. Varunjikar, Jens Dittmer | 2017-06-13 |
| 9540040 | Phase plane based transitional damping for electric power steering | Tejas M. Varunjikar | 2017-01-10 |
| 9409595 | Providing assist torque without hand wheel torque sensor for zero to low vehicle speeds | Tejas M. Varunjikar, Timothy W. Kaufmann | 2016-08-09 |
| 9278709 | Steering system having compensation command calibration | Jeffrey R. Meyer | 2016-03-08 |
| 9187119 | Wheel speed velocity variation scaling system | Michael K. Hales | 2015-11-17 |