drivqo.
Drivqo Labs / Four interactive lessons

Car mechanics.
Now you can see it.

Turn a gear. Follow a piston. Let a spring settle. Four hands-on ways to understand the machine you see every day.

Four mechanisms. One idea at a time.

Free to explore · No signup
01 / INTERACTIVE EXPLAINER
A piston linked by a connecting rod to an offset crankshaft, with intake and exhaust valves above the cylinder.

Four-stroke engine ↗

Follow one cylinder through intake, compression, power and exhaust. Two crankshaft revolutions. Four different jobs.

02 / INTERACTIVE EXPLAINER
Two external gears mesh. The smaller amber input gear drives a larger green output gear in the opposite direction.

Gear ratios ↗

Mesh two gears and change their tooth counts. Watch why a larger driven gear turns more slowly—and multiplies turning force.

03 / INTERACTIVE EXPLAINER
Top view of a driven axle with left and right wheels connected to a central differential and driveshaft. Moving tread marks show relative wheel speeds.

Open differential ↗

The outside wheel travels farther in a corner. Explore how a differential allows different wheel speeds while carrying torque to both wheels.

04 / INTERACTIVE EXPLAINER
A body mass rests on a spring and damper above a fixed wheel. The body moves vertically after release; the dashed line shows equilibrium.

Spring & damper ↗

A spring stores energy. A damper helps the movement settle. Release a displaced body and compare how damping changes its return to rest.

Built for curious beginners by Drivqo, the visual car mechanics learning app. These are simplified educational models, with assumptions explained in every lesson.