Tool for software hook insertion

With its advanced, patent-pending hook insertion technology, EHOOKS provides a reliable and accurate way to modify the ECU software. It only needs access to the ECU HEX and A2L file.

EHOOKS provides secure data exchange between the ECU software supplier and the OEM using the software. This allows EHOOKS to exploit deep internal knowledge of the ECU software to ensure high quality hooks, while protecting the ECU software supplier’s intellectual property.

Above all, EHOOKS is very easy to use. All you need to do is select the ECU variables (measurements), which will be calibrated/bypassed from a list and then click the build button. The modified ECU HEX and A2L are available within seconds.

Supports several operational modes by adding configurable enablers. Enablers are switches that allow added function and modifications to be enabled or disabled with a calibration tool like ETAS INCA

• Shadow mode
• Limited operation
• Unlimited operation
• Feature toggling

EHOOKS is a flexible technology for inserting bypass hooks into the ECU software. It supports a wide range of use cases across different development domains such as software/function development, testing, and calibration.

• Function development: you can use EHOOKS to add external bypass hooks and service points to the ECU software. This allows efficient development of new control strategies using behavior modelling tools and rapid prototyping systems.
• Software development: you can use EHOOKS to add new algorithm implementations directly into the ECU software itself. This allows on-target prototyping and testing of the implementation.
• Testing: EHOOKS can provide an efficient method for injecting test data into the ECU software via calibration bypass hooks. This allows direct control over software signals or overrides for diagnostic state machines.
• Calibration: EHOOKS provides a mechanism for calibration engineers to work around minor software bugs or to enhance the efficiency of the calibration process by giving them direct control over the input variables to calibration parameters.

EHOOKS integrates seamlessly with all members of the ETAS software and hardware family as well as with third-party tools. This enables end-to-end support for many different use cases throughout the software development cycle.

ASCET integration

EHOOKS allows integration with ASCET to support on-target bypass experiments. The key features are:

• Support for ASCET-SE targets
• Usage of ASCET physical or implementation models with ECU target quantization
• Full support for measurement and calibration of ASCET models
• Unchanged usage of ASCET models for on-target bypass
• “One-click build” from ASCET and automatic integration of model code into ECU

Simulink^® integration

EHOOKS introduces a new Simulink^® integration package that makes it easy to configure EHOOKS and integrate Simulink^® models for on-target bypass. The package adds new Simulink^® blocks and system targets that allow the entire EHOOKS configuration and build process to be managed directly within Simulink^® in a natural, intuitive, and efficient manner. The key features are:

• Support of Real-Time Workshop (RTW) and Real-Time Workshop Embedded Coder allows users to exploit Embedded Coder’s code efficiency
• Full support for measurement and calibration of Simulink^® models
• Reuse of existing calibration parameters within Simulink^® models
• Automatic conversion of ECU data to and from physical data types
• Automated and seamless integration from configuration to building of new ECU HEX files directly from within Simulink^®

For the different tasks the following EHOOKS products are available:

• EHOOKS-PREP (preparation)
  EHOOKS-PREP is used in software development to prepare the ECU software for EHOOKS – this is a one-time process. The output is the EHOOKS A2L file with encrypted information about the ECU software which EHOOKS-DEV can then exploit to improve the accuracy and reliability of the hook placement and greatly enhance the ease of use for the end users. EHOOKS-PREP is ECU-specific and requires porting to a new ECU family.
• EHOOKS-DEV (developer)
  EHOOKS-DEV is used to insert hooks into the ECU software. EHOOKS-DEV provides a simple configuration environment and allows the quick and easy addition of specific software hooks/patches. EHOOKS-DEV outputs a new HEX and A2L file which contain the hooked ECU software. EHOOKS-DEV is ECU-specific and requires porting to new ECUs families.
• EHOOKS-CAL/EHOOKS-BYP (calibration/bypass)
  EHOOKS-CAL and EHOOKS-BYP are INCA add-ons that give access to bypass hooks/software patches implemented by EHOOKS_DEV. They allow them to be accessed, controlled, and calibrated just like any other aspect of the ECU software. EHOOKS-CAL enables calibration users to work with constant and calibration bypass hooks. EHOOKS-BYP enables software/function development users to work with any hook type (on-target or external bypass hooks in addition to the constant and calibration bypass hooks). Licenses of EHOOKS-CAL/BYP work with any supported EHOOKS ECU.