What are the forms of auxiliary brakes

At present, there are roughly two types of auxiliary brakes: exhaust brakes and downhill retarders.

Exhaust brake

The exhaust brake is a kind of auxiliary brake. The exhaust brake is actually a valve that blocks the engine's exhaust system and prevents the engine from exhausting normally, so the engine becomes a compressor to absorb the kinetic energy of the car's movement and reduce the speed of the car. Exhaust brakes are often installed on automobiles used in some mountainous or plateau and mountainous areas, as well as heavy-duty vehicles and buses used in the north.

Using this exhaust brake when going downhill has the following advantages:

1. It can reduce the burden of the service brake and prevent the brake drum from malfunctioning due to the high temperature of the brake drum.

2. Extend the service life of the service brake system.

3. Anti-skid is possible. In the case of slippery roads in snow, F, if the service brake is used, it is easy to make the wheels side slip. When using exhaust brakes. The speed of the vehicle is slowly reduced, and the brakes are balanced, so that the wheels will not slip. Exhaust braking is a more economical and effective auxiliary braking device.

At present, there are roughly two types of auxiliary brakes: exhaust brakes and downhill retarders.

Exhaust brake

The exhaust brake is a kind of auxiliary brake. The exhaust brake is actually a valve that blocks the engine's exhaust system and prevents the engine from exhausting normally, so the engine becomes a compressor to absorb the kinetic energy of the car's movement and reduce the speed of the car. Exhaust brakes are often installed on automobiles used in some mountainous or plateau and mountainous areas, as well as heavy-duty vehicles and buses used in the north.

Using this exhaust brake when going downhill has the following advantages:

1. It can reduce the burden of the service brake and prevent the brake drum from malfunctioning due to the high temperature of the brake drum.

2. Extend the service life of the service brake system.

3. Anti-skid is possible. In the case of slippery roads in snow, F, if the service brake is used, it is easy to make the wheels side slip. When using exhaust brakes. The speed of the vehicle is slowly reduced, and the brakes are balanced, so that the wheels will not slip. Exhaust braking is a more economical and effective auxiliary braking device.

Downhill retarder

Using exhaust brakes when going down a long slope, although it can reduce the workload of the service brake to a certain extent, thereby reducing the chance of thermal recession and extending its service life. However, for heavy-duty vehicles used in mountainous areas or mines, the exhaust braking effect is limited, so hydraulic or electric downhill retarders are mostly used. These two types are also auxiliary braking devices.