Safety Electronics

Delphi's ACU-E4 is an Airbag Control Unit designed to detect frontal crashes and control deployment of two crash restraints.  The ACU can control up to four restraints in any combination of airbags and pretensioners.

• ACU-E4 is designed to meet the requirements of the emerging safety market. It provides exceptional performance at very low cost.
• ACU-E4 senses vehicle crashes using an internal sensor.  A crash sensing algorithm monitors the internal sensor and controls deployment of the restraints based on performance requirements for the specific vehicle in which it is installed.
• ACU-E4 provides an energy reserve function to help guarantee deployment of all restraints in the case where power is lost during a crash.  The ACU also provides the capability for creating and storing an event record to provide information about the crash for future analysis.
• ACU-E4 provides continuous diagnostics for external and internal functions.  It provides an output to drive a system readiness indicator LED and up to three additional low-side drivers and up to five resistive sensor inputs.  The ACU also provides a serial communication interface for communicating diagnostic and event record information.

Specifications

• 9-16V operation (switched ignition)
• Up to 4 deployment loops
• CAN or KW2000 communication
• Airbag warning LED driver
• Supports up to 3 low-side drivers
• Supports up to 5 resistive switch interfaces
• Vehicle speed input
• 150ms energy reserve (all loops)
• Base plate can be modified to match vehicle footprint
• 20-pin Tyco connector with 5 shorting bars
• <200g
• IP52
  

• The benefits or more than 20 years of experience
• Breadth of product offering
• Innovation – Up-integration capability

• Exceptional value
• Exceptional quality (4 parts per million)
• World-class algorithms