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In 1978, Bosch was the first supplier on the market to offer full-function antilock braking systems. In 1993, six years will have passed since Bosch delivered the first traction control system for passenger cars. In the meantime, a considerable amount of experience has been gained through ongoing development and testing. This experience enabled us to define the requirements for directional stability, optimum control strategy, maximum usage of the entire spectrum of drive torque intervention possibilities, and optimized hydraulics for automatic brake intervention. The result is Bosch ABS/ASR5, which in now being introduced to the market. This new ABS/ASR family is designed in modules, which offers high flexibility in function and assembly. Systems are available with traction improvement, or with optimized directional stability and traction. Each version is adapted to the needs of the vehicle drive layout, and adaptable to customer requirements.

After a brief explanation of the K-Jetronic injection system, there follows the description of the KE-Jetronic which represents the combination of a basic mechanical installation and the electronic control of additional functions. Special emphasis is placed on the new components such as the air-flow sensor, the electro-hydraulic actuator, the pressure regulator and the electronic control unit. Test results show the improvement in fuel economy and in emissions.