Question from the forum “Behind the wheel” – we answer them from time to time:
– What is a “wizard” in a car?
– The rear wheel brake power regulator (“wizard”) is a device that limits the pressure in the rear brake cylinders. This is done to prevent the rear wheels from locking prematurely and skidding during an emergency stop.
There are two design options.
- Static valves were used on many foreign cars without ABS, which simply limited the pressure build-up in the rear wheel circuits.
- Domestically developed vehicles have devices installed to limit the pressure with feedback.
If the rear part of the body is not loaded or rises during heavy braking, the lever associated with the rear suspension acts on the “wizard” and the pressure increase in the rear wheel circuits stops.
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- Why is the mountain brake not on cars? Expert answer here.
- “Behind the wheel” can also be read on VKontakte.
Source: Z R
