Powertrain Expert Witnesses

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Automotive powertrain expert witness candidates typically have expertise and backgrounds in mechanical engineering and/or automotive engineering. Representing the plaintiff or defendant, Cahn Litigation is often called upon to locate an expert witness to support automotive industry matters including cases involving powertrain technology.

In a motor vehicle, the powertrain system includes the engine, transmission, driveshaft, differential, and the final drive. A vehicle’s drivetrain consists of all the components of the powertrain, excluding the engine. The powertrain market, according to NADA, is still dominated by gasoline vehicles at over 93%, followed by diesel, hybrid, electric vehicle and plug-in hybrid vehicles. It is predicted that electric vehicles, including trucks and buses, will continue to have significant market growth. As examples, Cahn Litigation Services has dealt with powertrain matters involving all types of passenger vehicles, heavy duty trucks, military equipment, construction vehicles, and electric vehicle design.

Often, matters requiring drivetrain expert witness services involve intellectual property, such as patent infringement litigation, inter partes review in the PTAB, or trade secret disputes. A forensic expert can reverse engineer components to prove (or disprove) intellectual property infringement or theft. A specialist in powertrain technology might also provide testimony in a torts matter like personal injury or a product liability case involving vehicle failure analysis, or be called upon as an accident reconstruction expert.

Litigation support by an automotive expert could include damage analysis, reverse engineering, accident reconstruction, expert reports, and expert witness testimony at a trial. In a high-profile case, or litigation involving a significant financial stake, a law firm may request a qualified expert with prior expert witness experience. In addition, clients may seek an automotive industry expert for pre-litigation consulting work.

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Powertrain Expert Witness - Sample Bios

Please Note: All Cahn Litigation expert witness searches are customized to attorneys' precise specifications and preferences. Attorneys are encouraged to discuss search parameters with a Cahn search specialist.

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The below expert witness bios represent a small fraction of those Powertrain experts known by Cahn Litigation Services. These bios are provided to give attorneys a sense of the Powertrain landscape.


Expert Witness #245269

This expert has served as an independent consultant and expert witness in the Automotive engineering arena for many years. This expert's specific areas of focus are in Vehicle Powertrains, Vehicle Electronics, Throttle Controls, Shift Controls, and Braking Systems across primarily Passenger Vehicles, but also Heavy Duty Trucks, Off-Road Construction Vehicles, and Military Equipment. This expert's senior engineering positions allowed this expert to cross technology and product boundaries while performing field performance assessments, engine management system evaluations, and powertrain technical investigations. This expert is a member of the IEEE Standards Association and the Society of Automotive Engineers VEDI Standards Committee.


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Expert Witness #249398

This expert's career encompasses many years of service to an automobile manufacturer's powertrain engineering and general management functions. This expert has held various engineering positions was appointed Chief Engineer, and ultimately held the position of Director, Transmission Engineering. This expert is now President of the Transmission Division. This expert consults with the automotive industry in the powertrain and alliances areas. This expert has been a member of SAE International for many years and is an SAE Fellow.


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Expert Witness #252765

This expert is an FAA Consultant DER (Designated Engineering Representative) specializing in multiple aspects of helicopter design (including gearbox). In addition to work in design and test, this expert has many years of experience as an aircraft stress analyst, specializing in Static, Fatigue & Damage Tolerance, Materials and Processes (Metal and Composites) for damage tolerance repairs for transport aircraft. This expert is qualified at the Expert level proficiency in Finite Element Analysis and Fatigue/Damage Tolerance analysis. This expert has a proven track record of developing and approving repairs to high dollar value flight safety critical members, including helicopter swashplate and other rotor head components which had been considered beyond economic repair. This expert's experience with helicopter transmissions include:

-  static and fatigue and damage tolerance evaluation and testing of the drive system components for the AW609 tiltrotor.
-  Alternate Means of Compliance (AMOC) for an airworthiness Directive(AD) for the aft upper vertical driveshaft for the Model 107 heavy lift helicopter.
-  resolving cracking problems in the bevel gear attach bolts for the two-piece Model 234 Aft Gearbox Sun Gear.
-  gearbox thermal analysis to resolve problems arising from 2nd Stage Main Rotor Planetary Gear Carrier cracking
-  Worked on repairs to the following fatigue critical powertrain components
 AS 365 Reduction Gearbox Housing
 S76 Gearbox Upper Housing
 Bell 204 Main Rotor Transmission Housing
 Bell 212 Main Rotor Mast


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Expert Witness #237272

This expert is an Electrical Engineer with direct experience in automotive noise, vibration and harshness, including design, testing, and development of related automotive components. Analyses and testing of these components has included dynamometer testing, burke porter testing, test track testing, rough-road and off-road testing, and durability cycling. This expert's analysis was not merely to identify noise and vibrations, but also included testing, modeling, and simulations to best mitigate the NVH concerns. This expert has worked on NVH projects for steering wheel, and steering column components, as well as powertrain, body (such as body mounts), and engine/drivetrain systems. This expert's experience runs the gamut from military to commercial automotive, and has worked as a design engineer for automobile manufacturers and suppliers. This expert has significant intellectual property expert witness experience, having given depositions and trial testimony (as warranted) in PTAB, ITC and District Court proceedings.


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Expert Witness #245232

This expert has worked with all types of driveline, gear and transmission systems for the better part of this expert's career. During this expert's time as a Chief Engineer, this expert was responsible for the development and integration of transfer cases in light truck applications. The slip joints are integral components of such transfer cases, typically providing propshaft length adjustment to the driveline and sealing to the transfer case. Vehicle integration requires careful layout of slip joints regarding their adjustment capacity, lubrication and venting to maintain smooth operation over the lifetime of a vehicle this expert has worked with solid axles requiring large displacement capacities for slip joints. This expert has served as an Expert Witness on one case, providing an expert report before the case settled.


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Expert Witness #245241

This expert is the founder and owner of a successful automotive consulting firm that focuses on all aspects of Powertrain and Safety systems and their applicable certification on both domestic and imported automobiles. This expert's experience includes a strong focus on electronic powertrain control systems, powertrain application engineering, diagnostics and test system engineering. This expert also serves as the firm's testifying expert (in conjunction with subject matter experts on staff) when called upon to support law firms in litigation and arbitration actions.


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