Physics Mod v1.0.1

DESCRIPTION

Suspension & Cabin Movement

Chassis Suspension Overhaul – More realistic weight transfer and rebound behavior.

Cabin Suspension Adjustments – Improved independent cabin movement that reacts naturally to road conditions.

Balanced Cabin Lean & Roll – No more "blocky" side-to-side motion; smoother transitions.

Reduced Over-Dampening – Trucks now feel less stiff and more responsive to bumps and terrain.


Transmission,  Gearbox Behavior & Powertrain Realism

Improved Automatic Shifting Logic –

Shifts at lower RPMs under light throttle for better fuel efficiency.

Holds gears properly under load for realistic power delivery.

Reduced excessive gear hunting.

Adjusted shift timing for a more natural feel.

Refined Manual Gearbox Behavior –

Clutch engagement tuned for smoother starts.

More realistic RPM fall.

Improved Transmission Resistance – More natural power loss through the drivetrain, making acceleration and deceleration feel smoother and more authentic.

Balanced Flywheel Inertia – The engine now holds and loses revs in a more progressive and realistic way, improving shift behavior and coasting.

Refined Torque Converter Behavior – Gear shifts feel smoother and more natural, especially under load, preventing excessive slipping while maintaining realistic power delivery.


Steering & Handling

More Progressive Steering Response – Less sensitive at center for better highway stability.

Balanced Steering Wheel Travel – Adjusted max steering angle to better match real trucks (38 degrees)


Road & Environment Interaction

Refined Wheel Slip Behavior – Adjusted slip factors to reduce understeer/oversteer.

More Noticeable Mini-Bumps & Road Feedback – Feels more like a real truck suspension.

Subtle Air Seat Movement Simulation – Adds immersion with natural seat bounce over bumps.


Realistic Throttle Curve

Optional realistic throttle curve included, providing smoother and more progressive throttle response. This improves low-speed control, reduces jerky acceleration, and enhances realism by mimicking the way real truck engines respond to throttle input.


Compatibility & Optimization

Works with All Trucks – Fully compatible with stock and modded trucks (providing they have independent chassis/cabin physics)

Designed for Wheel Users – Balanced for users with a steering wheel.


Get behind the wheel and experience American Truck Simulator with the most realistic physics yet


For v1.54

CREDITS

Zeemods