Editing Automotive engineering (section)

===Development engineer===
A development engineer has the responsibility for coordinating delivery of the engineering attributes of a complete [[automobile]] ([[bus]], [[car]], [[truck]], van, SUV, motorcycle etc.) as dictated by the [[List of automobile manufacturers|automobile manufacturer]], [[governmental]] [[regulation]]s, and the customer who buys the product.

Much like the [[Systems engineering|Systems engineer]], the development engineer is concerned with the interactions of all systems in the complete automobile.  While there are multiple [[auto part|components]] and [[system]]s in an automobile that have to function as designed, they must also work in harmony with the complete automobile.  As an example, the [[brake]] system's main function is to provide braking functionality to the automobile.  Along with this, it must also provide an acceptable level of:  pedal feel (spongy, stiff), brake system "noise" (squeal, shudder, etc.), and interaction with the [[Anti-lock braking system|ABS]] (anti-lock braking system)

Another aspect of the development engineer's job is a [[trade-off]] process required to deliver all of the automobile attributes at a certain acceptable level.  An example of this is the trade-off between [[Engine tuning|engine performance]] and [[Fuel efficiency|fuel economy]].  While some customers are looking for maximum power from their [[Internal combustion engine|engine]], the automobile is still required to deliver an acceptable level of fuel economy.  From the engine's perspective, these are opposing requirements.  Engine performance is looking for maximum [[Engine displacement|displacement]] (bigger, more power), while fuel economy is looking for a smaller displacement engine (ex:  1.4 L vs. 5.4 L).  The engine size however, is not the only contributing factor to fuel economy and automobile performance. Different values come into play.

Other attributes that involve trade-offs include:  automobile weight, [[Drag coefficient|aerodynamic drag]], [[Automatic transmission|transmission gearing]], [[Automobile emissions control|emission control]] devices, [[Automobile handling|handling/roadholding]], [[ride quality]], and [[tire]]s.

The development engineer is also responsible for organizing automobile level testing, validation, and certification.  Components and systems are designed and tested individually by the Product Engineer.  The final evaluation is to be conducted at the automobile level to evaluate system to system interactions.  As an example, the audio system (radio) needs to be evaluated at the automobile level.  Interaction with other [[electronic component]]s can cause [[Radio frequency interference|interference]].  Heat dissipation of the system and [[Ergonomics|ergonomic]] placement of the controls need to be evaluated. [[Sound]] quality in all seating positions needs to be provided at acceptable levels.