Brad Holt

Experience

• 

  Caterpillar

  Jun 1997 - Oct 2016

  • Charged with oversight for Medium Wheel Loader (MWL) projects, coordinated new product introduction (NPI) MWL models, and coordinated over 20 projects totaling more than 5000 activities.• Achieved project completion goals within +/- 10 days of target dates during tenure.• Developed VBA code and process for updating primavera project plans directly from engineering drawing release and purchasing databases.• Developed VBA code and processes for creating project update reports and drawing release performance reports. Show less Performance and controls analysis for large wheel loader product group• Conducted machine performance analysis with emphasis on lower power train.• Performed brake heat load analysis, motor speed limits, and operator interface investigation, and E/H vs. manual brake push analysis and made final recommendations.• Developed real-time brake heat model for estimating brake heat build-up and overspeed testing/tuning method.• Analyzed efficiency of wheel loader power train to determine impact of proposed designs.• Led 988K brake heat solution project which resulted in pending patent for new control method for engine brake.• Reviewed existing Auto Dig strategies in research, MWL, and LHD and revised virtual Auto Dig algorithm which increased material independence and verified through simulation. Show less CAT ACSD Implements, Steering, Transmission Controls• Analyzed and designed control systems for motor grader and small wheel loader propulsion systems.• Designed, tested, and tuned underspeed and force modulation features for small wheel loader hydro-static transmission control, 938 hydrostatic transmission.• Designed, tested, and tuned closed-loop speed ratio control and features of motor grader m-series all-wheel drive control.• Awarded patent for motorgrader all wheel drive control enhancement Show less CAT PD> Systems and Controls Research• Analyzed and designed hydraulic and control systems.• Established real-time modeling for soil-bin digging simulations.• Performed kinematic redesign of motor grader linkage which optimized blade control linkage, reduced hydraulic circuits, and facilitated blade positioning using coordinated linkage motion.• Designed and built electro-hydraulic system for actuating brakes and differential lock on 950-wheel loader; built system onto prototype 950 and validated braking and traction control on machine. Show less

  • Project Coordinator

    May 2013 - Oct 2016

  • Engineering Specialist

    May 2008 - May 2013

  • Senior Design Engineer

    May 2003 - May 2008

  • Senior Design Engineer

    Jun 1997 - May 2003
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  LHP Engineering Solutions (Eaton Vehicle Group)

  Apr 2017 - Feb 2018

  Control Systems Engineer

  Contract with Eaton Vehicle Group - Matlab/Simulink model based development of heavy-duty transmission controls.

• 

  SRI Technologies (Navistar)

  Feb 2018 - Jul 2018

  Product Development Engineer

  Development of Real-time Engine model for Hardware-in-the-loop applications.

• 

  Navistar Inc

  Jul 2018 - Oct 2018

  Product Development Engineer Senior Team Lead

  Development of real-time engine and truck models for use in Hardware-in-the-Loop testing.

• 

  John Deere

  Oct 2018 - now

  Senior Engineer

  Creating engine models for use in models of john deere product line using Matlab/Simulink and Gamma Technologies Engine software