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Sensotronic Brake Control (SBC ™) works electronically, and therefore faster and more accurately, than a conventional hydraulic braking system. As soon as the brake pedal is pressed and the sensors identify the driving situation in the hand, the computer calculates exactly the necessary braking force and distributes it between the wheels as required. This allows SBC ™ to critically reduce stop distances. SBC ™ also helps optimize safety functions such as ESP®, ASR, ABS and BAS.

With the Sensotronic braking control, electrical impulses are used to transmit the driver braking commands to a microcomputer which simultaneously processes various sensor signals and, depending on the particular driving situation, calculates the optimum braking pressure for each wheel. As a result, SBC offers even greater active safety than conventional brake systems when braking in a corner or on a slippery surface.

A high pressure reservoir and electronically controlled valves ensure that maximum braking pressure is available much earlier. In addition, the system offers additional innovative features to reduce the driver's workload. These include Traffic Jam Assist, which automatically brakes the vehicle in stop-and-go traffic once the driver takes his foot off the accelerator. The Soft-Stop function, another first, allows a particularly smooth and smooth stop in urban traffic.

When drivers hit the brake pedal today, their foot moves a piston rod that is attached to the brake booster and the main brake cylinder. Depending on the strength of the pedal, the master brake cylinder increases the appropriate pressure in the brake lines, which - in a proven mechanical and hydraulic interaction - presses the brake pads against the brake discs through the brake cylinders. wheel.

By contrast, in the Mercedes-Benz Sensotronic Brake Control, a large number of mechanical components are simply replaced by electronics. The brake booster will not be needed in the future either. Instead, the sensors measure the pressure within the master cylinder of the brake, as well as the speed at which the brake pedal is actuated, and pass this data to the SBC computer in the form of electrical pulses. To provide the driver with the familiar brake feel, engineers have developed a special simulator that is connected to the tandem master cylinder and moves the pedal with spring and hydraulic force.

In other words: During braking, the drive unit is completely disconnected from the rest of the system and only serves to record any given brake command. Only in the event of a major failure or power failure, SBC automatically uses the services of the master tandem cylinder and instantly establishes a direct hydraulic link between the brake pedal and the front wheel brakes in order to decelerate the car. safe way.