Liwen Xu

Title: Liwen Xu: Innovator in Automotive Technology

Introduction

Liwen Xu is a prominent inventor based in Southfield, MI (US), known for her contributions to automotive technology. With a total of 5 patents, she has made significant advancements in the field, particularly in electric drive systems and vehicle stability control.

Latest Patents

One of her latest patents is a detection method of current sensor faults in the e-drive system by using the voltage command error. This innovative system, apparatus, and method detect a current sensor error in a Field-Oriented Control (FOC) electric machine system. By monitoring a voltage command, the system can identify the presence of an AC component that indicates a sensor error. The sensor fault detection module determines the deviation between the actual and ideal voltage commands, providing a complex deviation vector. This vector is transformed to a reference frame rotating at the fundamental frequency of the command voltage, allowing for the filtering of DC components and the determination of their amplitudes. This error detection method enables an FOC system to operate with two current sensors instead of three, enhancing diagnostic capabilities.

Another notable patent is the roll stability control system for an automotive vehicle using an external environmental sensing system. This system incorporates a camera-based vision system or a radar, lidar, or sonar-based sensing system that generates various signals. A controller, linked to the sensing system, generates dynamic vehicle characteristic signals in response to these inputs. The controller then manages the rollover control system based on the dynamic vehicle control signals, which include roll-related angles, angular rates, and vehicle velocities.

Career Highlights

Liwen Xu has worked with notable companies such as Ford Global Technologies, LLC and Ford Motor Company Limited. Her experience in these organizations has allowed her to develop and refine her innovative ideas in automotive technology.

Collaborations

Liwen has collaborated with talented individuals in her field, including Aaron Lewis Mills and Samir Mohamad Beydoun. These partnerships have contributed to her success and the advancement of her projects.

Conclusion

Liwen Xu is a remarkable inventor whose work in automotive technology has led to significant innovations. Her patents reflect her commitment to enhancing vehicle safety and efficiency. Through her career, she continues to inspire future advancements in the industry.