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CNG Engine Control

Tools and Software
HW Evaluation Tools
Key Products
The increasing demand for engines with reduced fuel costs has pushed car manufacturers to develop systems running with alternative fuels.  The internal combustion engines using liquid petroleum gas (LPG) and natural gas (CNG) are well-proven technologies and typically have lower emissions and lower fuel costs than gasoline and diesel vehicles, not to mention tax and mobility incentives in many countries. These are the reasons for which Interest in CNG and LPG vehicles is growing globally. CNG and LPG vehicles are often bi-fuelled cars with a spark-ignition engine in which alternative fuels work in co-operation with gasoline. ST has in its portfolio a wide range of products for management of CNG and LPG engines.


eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Thermal-electrical Simulators for Components

Power Management Design Center

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AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
Search and sort suitable devices

Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
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Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations

TVS Simulator

Specify system ratings and surge waveform
Search and sort suitable devices
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Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
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Solar Battery Charger

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
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Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs
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Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node