Chassis Systems Control AB12 â New generation of airbag control
Transcription
Chassis Systems Control AB12 â New generation of airbag control
Chassis Systems Control AB12 – New generation of airbag control units Characteristics The airbag control units AB12 base and AB12 plus are fl exible and scalable with respect to the number of fi ring loops and sensor interfaces for peripheral crash sensors. The airbag control units can trigger up to 32 fi ring loops and control 12 PSI5 sensor interfaces. There is also the option to expand the control units to trigger up to 48 fi ring loops and control up to 18 sensor interfaces. High-g sensors and optional rollover sensors are already integrated into the control unit of the variant AB12 base. With the AB12 plus variant Bosch has developed a concept which integrates the airbag control and the ESP® inertial sensors into one compact airbag control unit, saving both space and cost. There is also the option of extending the AB12 plus variant with a complete set of angular rate and acceleration sensors for all three dimensions (6D), meaning that Customer benefits chassis systems are also supported in addition to the Configurable for all markets, vehicle segments and ESP® and rollover-protection features. platforms Flexibility in the use of connector systems The AB12 control units evaluate the data from the Integration of inertial sensors possible pressure sensors to detect side crashes and from the Modular integration of both established and new acceleration sensors to detect side, front and rear-end algorithms crashes. In accordance with the PSI5 standard, the Safety concept compliant with ISO 26262 peripheral sensors can be operated either on a Use of Bosch electronic components sensor bus or via a point-to-point connection. The accuracy of the algorithms used to detect front, With AB12, Bosch off ers airbag control units that are rear-end and side crashes as well as rollovers has been scalable for all markets, vehicle segments and plat- further improved in comparison with the previous forms. These occupant protection electronic modules version, partly as a result of the addition of a new can be adapted for varying customer hardware and algorithm based on the parameters of the functionality requirements. kinetic energy absorption in crash (KEC). Chassis Systems Control | AB12 – New generation of airbag control units Configuration AB base Configuration AB plus ESP® Ω Z Low-g a x,y Roll rate Low-g a y,z scalable µC family Scalable ASIC family • Power supply • I/O • Safety controller • up to 16 firing loops • up to 6 sensor interfaces Roll rate Low-g a y,z scalable µC family High-g a x,z Scalable ASIC family • Power supply • I/O • Safety controller • up to 16 firing loops • up to 6 sensor interfaces High-g a x,z Scalable ASIC family • Power supply • I/O • Safety controller • up to 16 firing loops • up to 6 sensor interfaces ---- optional Scalable ASIC family • Power supply • I/O • Safety controller • up to 16 firing loops • up to 6 sensor interfaces ---- optional Following a crash, the airbag control not only sends a All airbag control units from Bosch use the integrated signal to interrupt the fuel supply. The crash information safety controller (SCON). With its watchdog function, is also provided to other vehicle systems, such as to an the SCON monitors the program flow in the microcon- eCall system, which automatically triggers an emergency troller, preventing undesirable system behavior. call when an airbag is activated, or to the braking control system, which can bringbase配置 the vehicle to a standstill to 标准型气囊电控单元AB avoid further collisions (Secondary Collision Mitigation). There is also the option to integrate advanced passive 滚转率 safety features such as the Early Pole Crash Detection or 低 g a y,z use the vehicle pre-crash functions. These functions The new airbag control plus配置 units are lead-free and have 升级型气囊电控单元AB been developed compliant with ISO 26262. They are ESP® Ω Z based on over 40 years of experience and expertise in 低载荷 a x,y the development of components for the automotive 滚转率 electronics industry. 低 g a y,z 可升级 dynamic sensors or surround sensors to provide optiµC 系列 of the restraint高devices g a x,z and other actuators mum control 可升级 Sensor Interface Peripheral 高 g a(PSI5) µC 系列 x,z The Peripheral Sensor Interface is an interface if the vehicle is about to crash. Reversible and irrevers- for automotive sensor applications. PSI5 is an open ible actuators the AIDA algorithm. 可升级的 系列 可升级的 系列controlled by ASIC ASICare • 电源 • 电源 • 输入/输出 • 输入/输出 For the AB12 control units, the software functions can • 安全控制器 • 安全控制器 be put together in a flexible manner, including, for • 最多16个点火回路 • 最多16个点火回路 example, the integration of an• occupant-classification 最多6个传感器接口 • 最多6个传感器接口 system or an electronic pedestrian-protection system standard on existing sensor interfaces for 可升级的 可升级的based ASIC系列 ASIC系列 peripheral airbag sensors, which has been validated • 电源 • 电源 • 输入/输出 • 输入/输出 already in millions of airbag systems. Main features of • 安全控制器 • 安全控制器 the PSI5 are high speed and high reliability data transfer • 最多16个点火回路 • 最多16个点火回路 at• lowest possible implementation overhead. PSI5 • 最多6个传感器接口 最多6个传感器接口 covers the requirements of digital automotive interfaces that uses the data from acceleration sensors or a ---- 可选 Pressure Tube Sensor in the bumper. In addition, the and ---- offers 可选 a universal and flexible solution for multiple sensor applications. airbag control units can be used as an event data recorder, if required. Hardware and system concept The AB12 control units have a new mechanical design consisting of a metal base plate and a plastic housing. The platform design enables customerspecific design of the base plate, the connector system and the level of ingress protection (IP54; optionally up to IP58). Robert Bosch GmbH Chassis Systems Control 455 Xing Long Street Suzhou Industrial Park 215024 www.bosch-automotivetechnology.com Printed in China 292000P0Z6-C/CCA-201211-En © Robert Bosch GmbH 2012. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of registration for industrial property rights.