Automotive electronic braking system industry


Advancements in vehicle braking systems are primarily being shaped by the industry megatrends of electrification and autonomy. ZF is a world leader in braking systems for both light and commercial vehicles following the acquisition of WABCO last year – for the purposes of this discussion we will concentrate more on the light vehicle market but ZF is now a major player for larger trucks globally for both the base air and hydraulic braking systems and foundation brakes where we see drum brakes being replaced by air disc brakes at a rate of more than 5 percent per year in selected markets. ZF also has an outstanding offering of electronic braking systems supporting applications like automatic emergency braking with our OnGuard suite of collision mitigation products.

On the light vehicle side, the drivers of technology are similar and ZF is at the forefront of developments. Future braking systems must be powertrain independent as they can no longer rely on the vacuum supplied by internal combustion engines and must work with traditional, hybrid or electric powertrain configurations. They must also generate brake pressure very quickly, which is driven by more stringent NCAP Automatic Emergency Braking (AEB) testing protocols for crossing bicycles – and soon powered two-wheelers. Future brake systems must also be adaptable for ADAS and semi-automated to fully autonomous driving capability.

In terms of brake controls, what is ZF offering and what trends are you seeing in the marketplace?

ZF’s Integrated Brake Control (IBC) system is a highly scalable solution and designed to deliver on the megatrend requirements described above. It combines brake actuation and ESC functionality in one unit, has a very fast-acting brushless motor that is powertrain independent and generates brake pressure up to three times faster than previous generation Electronic Stability Control systems. This is ideal for the very fast brake pressure applies that can translate into an up to one G of vehicle deceleration in less than 150 milliseconds for significantly reduced stopping distances. This is highly valuable particularly in crowded urban environments where reaction times are compressed for stopping and provides the best solution to avoid or mitigate accidents with vulnerable road users, such as cyclists and people suddenly crossing roads.

ZF also recently launched its Electronic Brake Boost system (EBB) on Volkswagen’s new electric vehicle generation platform for ID.3 and ID.4 models – it has similar performance characteristics to IBC and is added to an existing ESC to bring additional dynamic performance and reaction times. Both IBC and EBB contribute significantly to C02 reduction through high energy recuperation and enabling automated and autonomous driving capability with redundant control.


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