Mass production of the second-generation iBooster began in Europe and North America in 2017. It is designed for forward assembly in order to achieve cycle times of high volume production. The second-generation iBooster now represents a consistent mass production design.
Proof of concept was demonstrated with the first-generation iBooster launched in 2013. The electromechanical brake booster, iBooster, meets all requirements which result from today’s market drivers, Figure 1. The introduction of automated driving requires redundancy within the brake system, in order to guarantee deceleration of the vehicle even in the event of failure. To produce this in a comfortable manner, the brake system needs to “blend” the braking torque of the generator.
#Ibooster funciona generator
Hybrid and electric vehicles have opened up the option to improve fuel economy by converting kinetic energy through regenerative braking of the generator into electrical energy to charge the battery. Because of the powertrain electrification, the NVH requirements become even stronger, and the vacuum source for brake boosters is removed completely. The vacuum must then be generated either by a mechanical vacuum pump attached to the engine or an electric vacuum pump. Future CO 2 emissions targets have resulted in gasoline engines that no longer have sufficient vacuum for brake boosters in all operating conditions. For ADAS, this means both increasing relevance of Noise, Vibration and Harshness (NVH) regarding features such as adaptive cruise control to standstill and the need for substantially higher pressure build dynamics for new safety features.
In addition to high expectations regarding reliability and availability of safety-related brake systems (whilst keeping costs low), there are now demands arising from the introduction of more and more Advanced Driver Assistance Systems (ADAS), as well as more efficient engines, and electric powertrains. Since the introduction of the Electronic Stability Program (ESP) in 1995, brake system requirements have changed significantly.
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