Charles Darnell

Title: Innovations by Charles Darnell

Introduction

Charles Darnell is an accomplished inventor based in Ypsilanti, MI (US). He holds a total of 3 patents that showcase his expertise in hydraulic braking systems. His innovative work has contributed significantly to advancements in vehicle safety and performance.

Latest Patents

One of Darnell's latest patents focuses on vehicle hydraulic braking systems incorporating micro-machined technology. This invention describes hydraulic or electro-hydraulic braking systems that include at least one wheel braking device and micro-machined technology, such as microvalves. The integration of microvalves helps to eliminate audible noise produced in hydraulic systems while allowing for a reduced package size. Many of the braking systems described have Anti-lock Braking System (ABS) capabilities, employing apply microvalves, dump microvalves, and changeover microvalves. These microvalves can be digitally or proportionally controlled to selectively manage the pressure supplied to the wheel brake cylinders.

Another notable patent involves the structure for mounting a cluster of pressure sensors upon an electro-hydraulic brake system control unit. This invention features a plurality of pressure sensors housed on a hydraulic control valve for an electro-hydraulic brake system. The pressure sensors are electrically connected to a signal conditioning circuit, which is also mounted on the hydraulic control valve. The signal conditioning circuit samples the sensors and multiplexes the sensor signals into a single output signal.

Career Highlights

Darnell has made significant contributions to the field of hydraulic braking systems through his work at Kelsey-Hayes Company. His innovative designs and patents have enhanced the functionality and safety of braking systems in modern vehicles.

Collaborations

Throughout his career, Darnell has collaborated with notable colleagues, including Richard J. Barron and Edward Nelson Fuller. These partnerships have fostered a creative environment that has led to groundbreaking advancements in automotive technology.

Conclusion

Charles Darnell's contributions to hydraulic braking systems demonstrate his commitment to innovation and safety in the automotive industry. His patents reflect a deep understanding of technology and its application in enhancing vehicle performance.