What is Automotive Engineering?
Automotive engineering is the branch of engineering concerned with the design, development, manufacture, testing and operation of road vehicles.
It combines mechanical engineering with electrical and electronic engineering, materials science, control engineering, software engineering, manufacturing engineering, aerodynamics, thermodynamics and increasingly artificial intelligence.
The LinkedIn Group Automotive Engineering R&D has been created to connect the people interested in the automotive engineering field. You can also link to the LinkedIn profile Automotive R&D Engineer.
The Modern Vehicle
Mechanical Systems + Electrical Systems + Software + Materials + Energy + Human Factors
Major Automotive Engineering Disciplines
Mechanical Engineering
Structures, mechanisms, engines, transmissions, suspension and thermal systems.
Electrical Engineering
Electric motors, batteries, power electronics, charging and vehicle electrical systems.
Electronics
Sensors, control units, communication networks and electronic control systems.
Software Engineering
Embedded software, vehicle operating systems, diagnostics, connectivity and automated driving.
Materials Engineering
Metals, polymers, composites, coatings and lightweight materials.
Manufacturing Engineering
Production systems, robotics, quality control, automation and assembly.
The Automotive Engineering Lifecycle
Modern vehicle development relies heavily on digital engineering, computer-aided design, numerical simulation, hardware-in-the-loop testing and software-defined development.
Automotive Powertrains
The powertrain converts stored energy into useful traction and transfers torque to the wheels.
Internal-Combustion Engines
Petrol and diesel engines convert chemical energy into mechanical work through combustion.
Hybrid Powertrains
Combine an internal-combustion engine with electric propulsion and energy storage.
Battery Electric Vehicles
Use batteries, power electronics and electric motors for propulsion.
Hydrogen Technologies
Hydrogen can be used in fuel-cell electric systems and, in some applications, combustion-based power systems.
Electric Vehicles
Electric vehicles use electrical energy stored in a battery or supplied through another electrical source to drive one or more electric motors.
Electric Motor
Converts electrical energy into mechanical torque.
Inverter
Controls electrical power delivered to the traction motor.
Battery Pack
Stores electrical energy and supplies the high-voltage system.
Regenerative Braking
Allows energy recovery during deceleration.
Thermal Management
Controls temperatures of batteries, motors and power electronics.
Charging
Interfaces the vehicle with electrical infrastructure.
Automotive Battery Engineering
Battery engineering is central to electric mobility because battery performance influences vehicle range, mass, cost, safety and charging capability.
| Parameter | Engineering significance |
|---|---|
| Energy density | Influences stored energy for a given mass or volume. |
| Power density | Influences acceleration and high-power operation. |
| Thermal behaviour | Affects performance, ageing and safety. |
| State of charge | Indicates available stored energy. |
| State of health | Indicates battery degradation and remaining capability. |
| Cycle life | Describes durability under repeated charge and discharge. |
Chassis and Vehicle Dynamics
The chassis provides the structural platform for the vehicle and determines much of its handling, ride and load-carrying behaviour.
Suspension
Controls wheel movement, ride comfort, tyre contact and handling.
Steering
Controls vehicle direction and increasingly integrates electronic assistance.
Braking
Converts vehicle kinetic energy into heat and, in electric vehicles, potentially recovered electrical energy.
Tyres
Provide the critical contact between vehicle and road.
Body Structure
Provides stiffness, occupant protection and mounting points.
Vehicle Dynamics
Studies acceleration, braking, cornering, stability, ride and handling.
Automotive Aerodynamics
Aerodynamics influences drag, stability, cooling and high-speed performance.
Here FD is aerodynamic drag, ρ is air density, v is vehicle speed, CD is drag coefficient and A is frontal area.
Drag Reduction
Lower drag can reduce the energy required to move the vehicle.
Downforce
Aerodynamic forces can increase tyre loading and improve cornering performance.
Cooling
Airflow management is essential for engines, batteries, motors and power electronics.
Wind Noise
Aerodynamic flow contributes to vehicle acoustic performance.
Automotive Safety Engineering
Crashworthiness
Vehicle structures manage crash energy and protect occupants.
Active Safety
Systems help prevent collisions through braking, steering and stability control.
Passive Safety
Seat belts, airbags and structural features reduce injury during collisions.
Functional Safety
Engineering processes address hazards from malfunctioning electronic systems.
Cybersecurity
Connected vehicles require protection against malicious interference.
Driver Assistance
ADAS combines sensors, computation and control to support drivers.
Automotive Electronics
ECUs
Electronic control units process sensor information and control vehicle functions.
Sensors
Measure speed, acceleration, temperature, pressure, position and surroundings.
Vehicle Networks
Communication networks allow electronic systems to exchange information.
Power Electronics
Controls electrical energy in electric and hybrid vehicles.
Software-Defined Vehicles
Vehicle functionality is increasingly determined by software as well as physical hardware.
Embedded Software
Controls braking, propulsion, steering, thermal systems and other functions.
Over-the-Air Updates
Connected vehicles can receive software updates remotely.
Autonomous Driving
Combines sensing, perception, planning and control algorithms.
Infotainment
Integrates navigation, communications, entertainment and digital services.
Automotive Manufacturing
Automation
Robots perform welding, painting, assembly, handling and inspection.
Additive Manufacturing
3D printing can produce prototypes, tooling and selected production components.
Quality Engineering
Measurement and process control maintain dimensional and functional quality.
Digital Manufacturing
Digital models, simulation and production data support efficient manufacturing systems.
Vehicle Testing and Validation
Testing verifies that vehicles meet performance, reliability, safety and regulatory requirements.
| Test area | Purpose |
|---|---|
| Crash Testing | Evaluate occupant protection and structural behaviour. |
| Durability Testing | Assess components under repeated operating loads. |
| Powertrain Testing | Measure power, torque, efficiency and thermal performance. |
| Wind Tunnel Testing | Measure aerodynamic forces, flow and acoustic behaviour. |
| Environmental Testing | Evaluate performance under environmental conditions. |
| Hardware-in-the-Loop | Test control systems against simulated vehicle environments. |
Automotive Engineering and Sustainability
Automotive engineering is increasingly focused on reducing energy consumption, emissions, material use and lifecycle environmental impacts.
Efficient Mobility
Lower Mass + Lower Drag + Efficient Powertrain + Renewable Energy + Longer Service Life
Electrification
Electric propulsion can reduce direct vehicle emissions and improve drivetrain efficiency.
Lightweighting
Reducing vehicle mass can improve energy efficiency and performance.
Recycling
Materials recovery and circular manufacturing can reduce resource demand.
Lifecycle Engineering
Design decisions increasingly consider production, use, maintenance and end-of-life.
The Future of Automotive Engineering
Electric Mobility
Continued development of electric powertrains, batteries and charging systems.
Autonomous Vehicles
Increasing integration of perception, AI, robotics and vehicle control.
Connected Vehicles
Vehicles increasingly communicate with infrastructure, cloud services and other systems.
Software-Defined Vehicles
Software will increasingly determine vehicle functionality and user experience.
Advanced Manufacturing
Automation, robotics, additive manufacturing and digital production will continue to evolve.
Intelligent Mobility
Automotive engineering will increasingly connect vehicles with wider transport and energy systems.
Development of Automotive Engineering
Practical motor vehicles emerged from developments in internal-combustion engines, electrical systems and mechanical engineering.
Mass production transformed vehicle manufacturing and made automobiles increasingly accessible.
Automotive engineering expanded into aerodynamics, advanced materials, safety engineering and sophisticated powertrains.
Electronic fuel injection, engine control, computer-aided engineering and vehicle electronics became increasingly important.
Electrification, connectivity, digital engineering, autonomous driving and software-defined vehicles are reshaping the industry.
Summary
Automotive engineering integrates many engineering disciplines to design safer, more efficient, more reliable and increasingly intelligent vehicles.
- Mechanical and vehicle engineering
- Internal-combustion and hybrid powertrains
- Electric vehicles and battery systems
- Chassis and vehicle dynamics
- Aerodynamics and thermal management
- Automotive electronics and control
- Software-defined vehicles
- Autonomous driving and ADAS
- Materials and lightweighting
- Manufacturing and robotics
- Vehicle testing and validation
- Sustainable mobility
Automotive Engineering
Design · Analyse · Simulate · Manufacture · Test · Connect · Electrify