Automotive & Transportation
Follow Automotive & Transportation in the Factlen app and get an alert when there is news. Get the app
Trade Quotas
EU Caps Chinese Hybrid Vehicle Imports at 350,000 Annually Under WTO Safeguard Rules
4 sources · 9d ago
Driver Assistance
Tesla Rebrands 'Full Self-Driving' to 'Assisted Driving' in Europe to Secure Regulatory Backing
10 sources · 12d ago
Active Suspension
How Cross-Linked Hydraulic Dampers Eliminate the Need for Mechanical Anti-Roll Bars
8 sources · 15d ago
More in Automotive & Transportation
ExplainerVehicle Dynamics
Why Overloading Roof Boxes Shifts Roll Centers and Triggers High-Speed Dynamic Rollover Instability
Automotive Safety Regulators 40%Overland and Outdoor Enthusiasts 30%Vehicle Dynamics Engineers 30%
ExplainerRailway Engineering
How Automatic Couplers Route Air and Data While Absorbing Megajoules of Train Buff Load
Transit Procurement Directors 35%Railway Engineering Teams 35%Freight Network Operators 30%
Deep DiveBattery Chemistry
Why Solid-State EV Batteries Still Short-Circuit During 15-Minute Fast Charges
Pure Solid-State Developers 35%Semi-Solid Battery Engineers 35%Automotive Product Planners 30%
ExplainerAviation Chemistry
How Water Scavengers and Aerodynamic Heating Keep Jet Fuel Liquid at Minus 47 Celsius
Aerospace Researchers 35%Fuel Refiners 35%Sustainable Fuel Engineers 30%
Deep DiveCathodic Protection
Zinc Anodes Fail in Freshwater: Why Impressed Current and Magnesium Prevent Stray-Current Hull Corrosion
Marine Surveyors 40%ICCP System Manufacturers 30%Coastal Boaters 30%
ExplainerRiding Technique
How Trail Braking Prevents Fork Extension and Preserves Tire Grip in Corners
Advanced Riding Instructors 40%Basic Licensing Programs 30%Suspension Engineers 30%
ExplainerBattery Thermodynamics
Why Electric Vehicles Lose Range in Winter: The Physics of Internal Battery Resistance
Battery Engineers 35%EV Service Technicians 35%Automotive Manufacturers 29%
ExplainerHighway Safety
Why Highway Breakdown Lanes Use Corrugated Rumble Strips Instead of Continuous Asphalt Shoulders
Highway Safety Engineers 50%Vulnerable Road Users 30%Paving Technologists 20%
ExplainerDrivetrain Engineering
Dual-Mass Flywheels Absorb Engine Vibration via Secondary Springs at the Cost of Clutch Wear
Automotive Engineers 40%Vehicle Owners 40%Performance Enthusiasts 20%
ExplainerFriction Management
Wheel Flange Lubrication Cuts Curve Wear by 90 Percent While Preserving Braking Adhesion
Transit Operations & Maintenance 40%Safety & Tribology Researchers 35%Environmental & Community Advocates 25%
ExplainerBrake Tribology
Carbon-Ceramic Brakes Require Pre-Formed Transfer Layers to Bite, Causing Street-Speed Cold Squeal
Friction Engineers 40%Urban Supercar Owners 30%Tribology Researchers 30%
ExplainerEngine Physics
The Physics of the Cylinder: Why Bore-to-Stroke Ratios Dictate Engine Torque
Marine & Heavy-Duty Operators 40%Performance & Racing Builders 40%Consumer Truck Buyers 20%
ExplainerAutomotive Engineering
Why Driving on an Empty Tank Burns Out Your Car's Fuel Pump
Automotive Engineers 40%Consumer Advocates 35%Fleet Managers 25%
ExplainerVehicle Maintenance
Why Your Brake Rotors Are Not Actually Warped (And What Causes That Pedal Shake)
Automotive Tribologists 44%Service Technicians 33%Component Manufacturers 22%
ExplainerCabin Air Quality
Recirculating Cabin Air Concentrates Exhaled Carbon Dioxide to 2,500 PPM, Triggering Highway Drowsiness
Automotive Engineers 40%Air Quality Researchers 40%Safety Sensor Manufacturers 20%
ExplainerSensor Physics
Why LiDAR Goes Blind in Fog While Automotive Radar Sees Straight Through It
Sensor Fusion Consensus 50%Radar Advocates 30%Optical Purists 20%
ExplainerSuspension Dynamics
Pneumatic Stiffness Scales With Inflation Pressure: Why Air Suspensions Preserve a Constant Ride Frequency
Suspension Engineers 40%Vehicle Dynamicists 40%Factlen Analysis 20%
ExplainerAerodynamics
Sub-Zero Tropopause Temperatures Maximize Turbofan Efficiency While Low Density Cuts Parasitic Drag
Aerodynamic Design 40%Propulsion Thermodynamics 35%Flight Operations 25%
ExplainerVehicle Aerodynamics
Aerodynamic Power Penalties Scale With the Cube of Velocity, Making Air Conditioning More Efficient Than Open Windows Above 80 km/h
Aerodynamics Researchers 40%HVAC System Engineers 35%EV Efficiency Analysts 25%
ExplainerMetro Signalling
Moving Block Signalling Uses Dynamic Braking Envelopes to Compress Metro Headways to 90 Seconds
Transit Planners 40%Signalling Engineers 35%Passenger Advocates 25%
ExplainerAerodynamics
Entering Tunnels Above 250 km/h Compresses Air Into Shockwaves: Why High-Speed Trains Use Slender Noses
Aerodynamic Engineers 40%Infrastructure Planners 35%Environmental Regulators 25%
ExplainerSensor Interference
How Coherent Heterodyne Mixing Prevents Optical Crosstalk in FMCW LiDAR
Autonomous Fleet Operators 40%Silicon Photonics Manufacturers 30%Automotive Safety Regulators 30%
ExplainerAerodynamics
How Fender Louvers Bleed Trapped Wheel-Arch Pressure to Cancel Front-Axle Aerodynamic Lift
Aerodynamicists 40%Chassis Engineers 35%Automotive Designers 25%
ExplainerHybrid Tech
How Planetary Power-Split Hybrids Synthesize Stepless Ratios Without Belts or Clutches
Mechanical Engineers 40%Automotive Manufacturers 40%Driving Enthusiasts 20%
ExplainerCharging Efficiency
Auxiliary Loads Siphon a Quarter of Domestic Socket Energy During Low-Current EV Charging
Efficiency Analysts 40%Electrical Contractors 30%Hardware Manufacturers 30%
ExplainerExpansion Chambers
How Two-Stroke Expansion Chambers Use Acoustic Waves to Supercharge Cylinders
Performance Engineers 50%Historical Purists 25%Acoustic Physicists 25%
ExplainerTire Physics
Why Bleeding Air From Warm Tires on a Road Trip Actually Causes Blowouts
Automotive Engineering Consensus 60%Consumer Safety Advocates 40%
ExplainerEngine Technology
Delaying Intake Valve Closure Over-Expands Combustion Gases to Achieve 40-Percent Hybrid Efficiency
Thermodynamic Engineers 40%Driving Enthusiasts 30%Automotive Analysts 30%
ExplainerFluid Dynamics
Pure Ethylene Glycol Freezes at Minus 13 Celsius: How Water Creates a Eutectic Mixture
Chemical Engineers 40%Automotive Mechanics 40%Safety Regulators 20%
ExplainerAutonomous Navigation
Urban Canyon Multipath Skews Satellite Fixes by Tens of Meters, Forcing Autonomous Vehicles to Localize via LiDAR Map Matching
Autonomous Vehicle Engineers 45%GNSS Researchers 35%Urban Infrastructure Planners 20%
ExplainerSuspension Geometry
How Pushrod Bellcranks Balance Supercar Aerodynamic Downforce With Low-Speed Ride Compliance
Aerodynamicists 40%Vehicle Dynamics Engineers 40%Supercar Buyers 20%
ExplainerEngine Tech
How Exhaust Gas Recirculation Cuts Engine NOx Without Increasing Heat
Automotive Engineers 45%Environmental Regulators 35%Aftermarket Tuners 20%
ExplainerVehicle Aerodynamics
Why Cracking a Single Car Window Triggers Violent Low-Frequency Buffeting
Aerodynamic Design 50%Acoustic Management 50%
ExplainerTire Physics
Why Wider Tires Reshape the Contact Patch Without Increasing Total Rubber on the Road
Performance Tuners 40%Efficiency Engineers 30%Daily Commuters 30%
ExplainerMarine Fluid Dynamics
The Fluid Dynamics of Propeller Walk in Single-Screw Vessels
Professional Mariners 40%Naval Architects 30%Recreational Boaters 30%
ExplainerSteering Geometry
Moving the Wheel Axle Forward Shifts the Contact Patch Closer to the Steering Axis Intercept: Why Increasing Fork Offset Reduces Motorcycle Trail
Track Day Riders 35%Chassis Engineers 35%Custom Builders 30%
ExplainerAcoustic Engineering
How Suspension Accelerometers Exploit Structural Delay to Cancel Road Noise Before It Forms
Acoustic Engineers 40%Automotive Manufacturers 35%Audio System Suppliers 25%
ExplainerAutonomous Safety
The 10-Second Rule: Why Level 3 Autonomous Vehicles Must Drive While the Brain Reboots
Human Factors Researchers 35%International Regulators 35%Safety Advocates 30%
Emissions RegulationsEuropean Union
Germany and France Agree on Deal to Weaken European Union's 2035 Combustion Engine Ban
Automotive Manufacturers 40%Protectionist Policymakers 35%Climate Advocates 25%
ExplainerVehicle Safety
Why Riding the Brakes Down a Mountain Boils Hydraulic Fluid, and How Engine Drag Prevents It
Thermal Engineering Consensus 40%Safety Regulators 35%Factlen Analysis 25%
ExplainerAutomotive Engineering
UNECE Regulation 39 Prohibits Under-Reading: Why Car Speedometers Deliberately Exceed GPS Speed by 3 to 7 Percent
Automotive Engineers 40%Traffic Enforcement Authorities 35%Consumer Advocates 25%
ExplainerTransit Operations
Positive Feedback Between Passenger Queues and Dwell Times Makes Even Bus Spacing Inherently Unstable
Mathematical Modeling 40%Infrastructure Engineering 35%Rider Advocacy 25%
ExplainerMotorcycle Tech
How Spacing Parallel-Twin Crankpins at 270 Degrees Eliminates Inertial Torque Spikes to Replicate V-Twin Traction
Engine Designers 40%Performance Riders 40%Traditionalists 20%
ExplainerEV Engineering
Falling Motor Back-EMF Cuts Regenerative Braking at Low Speeds, Requiring Hydraulic Blending or Battery Draw to Reach Zero
Blended Braking Advocates 45%Active Motor Control Proponents 45%Traditional Driving Purists 10%
ExplainerSensor Fusion
Lacking Elevation Resolution to Distinguish Overpasses From Stopped Cars, Automotive Radars Filter Stationary Returns to Prevent Phantom Braking
Sensor Fusion Architects 35%4D Radar Developers 35%Legacy Systems Engineers 30%
ExplainerEngine Architecture
How Inverting Cylinder Head Flow to Position Turbochargers Inside the Engine Valley Eliminates Turbo Lag
Automotive Engineers 40%Independent Mechanics 30%Aftermarket Tuners 30%
Per page

















































