Lowell E Johnson

Title: Lowell E Johnson: Innovator in Powertrain Technology

Introduction

Lowell E Johnson is a notable inventor based in East Peoria, IL (US), recognized for his contributions to powertrain technology. With a total of 6 patents, Johnson has made significant advancements in vehicle performance assessment and control systems.

Latest Patents

One of his latest inventions is the "Powertrain Performance Assessment System." This apparatus is designed to assess the performance of a vehicle's powertrain. A microcomputer collects sensor data indicative of the rotational velocity of an output shaft and a transmission input shaft, as well as the pressure of a directional clutch and a speed clutch. The microcomputer calculates a set of powertrain parameters based on the collected sensor data and produces an error signal in response to predetermined conditions of the powertrain parameters.

Another significant patent is the "Electrohydraulic Control Device for a Drive Train of a Vehicle." This invention pertains to vehicles such as earthmoving wheel loaders, which include an engine, a torque converter with various elements, and an input clutch connected between the engine and the impeller element. The electrohydraulic control device is designed to controllably engage the input clutch and features a microprocessor-based electronic control module. It includes an actuator mechanism that progressively moves between positions to deliver electrical signals to the electronic control module, directing fluid to the input clutch at decreasing pressure levels.

Career Highlights

Throughout his career, Johnson has worked with prominent companies, including Caterpillar Tractor Co. and Caterpillar Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of vehicle technology.

Collaborations

Johnson has collaborated with notable individuals such as Randall M Mitchell and David W Bump, who is now deceased. These collaborations have contributed to the development of his patents and innovations.

Conclusion

Lowell E Johnson's work in powertrain technology showcases his innovative spirit and dedication to improving vehicle performance. His patents reflect a deep understanding of engineering principles and a commitment to advancing automotive technology.