How does Volvo engine brake work?

Volvo engine braking works by utilizing the engine's compression to slow down a vehicle, primarily in heavy-duty trucks. When the driver releases the accelerator and engages the engine brake, the engine’s exhaust valves are opened, allowing compression resistance to slow the engine down. This process reduces wear on the brake system and provides better control on descents, enhancing safety and efficiency. The engine braking feature is especially useful in managing speed without overheating the traditional brake components.