If previously he could simulate a little bit of ABS operation by pressing the pedals intermittently, then brake balance control is only available on certain racing series, where the most experienced pilots drive complex and expensive cars. The principle of EBD assistance to the driver is precisely adding a separate wheel maintenance function that was not previously available during braking. Damage or contamination in the braking system when there is a difference in the effectiveness of the wheel brakes.Short-term throwing of the wheels on the mound. ![]() At the beginning of the car’s rotation, some wheels are still able to brake, when others are already sliding and cannot be controlled.Braking on roads with uneven surfaces, when the adhesion coefficient for all wheels is very different, this goes into puddles, mud or ice.In other situations where Predictable Separate Control can help stop a vehicle quickly: The car will start to slow down quite effectively, which in situations of excessive speed in the corner can save equipment and the driver as well as the passenger. Of course, when trying to brake, they will immediately block, because the traction force is close to zero.ĪBS will react to the situation by actually stopping braking, it will act like an old school driver.īut EBD is much smarter, it can not only eliminate the blocking of wheels that are not disassembled on the inside of the car due to the turns, but also to increase the pressure on the brake cylinders on the loaded outside. The inner wheels can be lowered just like that by centrifugal force so that they actually rise into the air. A four-channel system is able to do this, and the appropriate control program for electronic units forms the basis of EBD. Instead, it is necessary to add strength to the front axle, not to throw it evenly from all the wheels, but to redistribute it. If the front wheels during normal braking have an adhesion margin, when the rear wheels have been locked and serviced by ABS, then it would be very irrational to reduce the pressure from them as well. The role of EBD in all of these cases is to minimize stopping distances. In difficult conditions, an inexperienced driver only has to press the brakes with maximum effort and then adjust the car only with the steering wheel, the required clutch will be provided by automation. The anti-lock braking system has made it very easy to control, now braking at an angle is not only possible, but also the recommended action. Old car drivers, who are not equipped with electronic brakes, are even taught that braking in turn is not recommended, and what happens when the wheels jump when pressing on the brake pedal that they can watch and remember for a lifetime. The situation can get worse when cornering on rough roads. The braking distance will be rushed to infinity. ![]() Under conditions of emergency braking on slippery surfaces, the rear wheels will lock too early, the result is a reduction in pressure throughout the system and the potential for a properly loaded front wheel will not be realized. This system has axle load data obtained during operation and is able to control efforts.įor example, if most of the cars fall in the front axle or the back of the car is not loaded, then the natural effect of dynamic redistribution of the weight of the car going forward during braking will be exacerbated by the lightweight rear axle. How the brake power distribution system worksĮBD, unlike ABS, works even before sliding begins. This is achieved by using four-channel control separately for wheels, and a more accurate prediction of vehicle behavior.Īs such, EBD can be considered as improved ABS, taking into account more information and having additional capabilities for individual control of each brake cylinder or cluster. Looking at the start of braking, the car will continue to assess deviations in the rotation speed of individual wheels, thus recording the beginning of the slip because it exceeds the adhesion limit with the road.īecause the slowing efficiency in the case of the transition to sliding is greatly deteriorated, which can also be noted from the vehicle’s linear acceleration sensor signal, a decision was made to adjust the pressure in the brake line.īesides ABS, the brake power distribution system has become, which almost completely resolves the problem. The device analyzes all data received and determines vehicle speed. Each wheel has a rotational speed sensor, readings that are in the form of frequencies of electrical impulses transmitted through cables to general electronic units, where they are encoded into digital information and processed by microcomputer. The first conventional ABS operating principle implies a single control channel.
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