ASTop Idle
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#1 Class Supplier to German Rail Self-Powered Idling Stop Technology for Diesel Engines with integrated handbrake sensor

Fuel Operated Heating System for Diesel Engines A.S.T. has equipped more than 4,000 diesel locomotives with STop-Idle Technology world-wide in the last 20 years. The fuel operated heating system is fully independent and protects the locomotive automatically by heating the coolant in the engine as well as the engine oil and air compressor. It´s function is to stop low and high idling to maintain ideal engine temperatures year-round down to sub-zero temperatures and to extend AESS (auto engine stop/start) shutdowns which are effective for 6-8 months of the year only. As an inherent system...

Heating Circuit The drawing shows the integration of the  STopIdle Technology System into the cooling circuit of a diesel engine. With this configuration the locomotive cab, fuel tank and engine oil can be warmed by the engine heating system. Several built in sensors and at specific locations provide the necessary monitoring of the complete engine and the system heater. Integration for a typical wet/dry cooling system e.g. EMD 645 engine, GE AC4400 Fuel Consumed in US gal. Hourly to Ambient Temperature Locomotive engine (e.g. 16-645) APU-Diesel  STop-Idle Locomotive engine (e. g. 16-645)...

Design The system components of the  STop-Idle are designed for minimal servicing and energy consumption in diesel locomotives. Thus the variable speed circulation pumps have integrated inverters that improve efficiency, endurance and reliability. The boilers are extremely robust and efficient. All electronic components (e.g. process control system, mini cab control terminal) are built for the locomotive environment and adequately designed for vibrations, a wide range of ambient temperatures and voltage spikes and fluctuations expected during normal locomotive operation. The microprocessor...

System Components Circulation pump with integrated inverter short-circuit protected, jolt-free running, high breakaway torque, safety cut-off if pump is locked, IP 65 Process control system data recorder function, build in test equipment (BITE) for permanent selfmonitoring, extremely reliable, IP 65 Low-pressure hot water boiler thermal output 35 ~ 50 kW or 50 ~ 90 kW efficiency > 90 %, Hinged front panel for rapid access to the flue for cleaning Mini-terminal handling of the system interface, menu driven commands, crew information,any installation location in the vehicle Two-stage oil...

versus AESS only (hours per day) Idle Reduction Increase Road Switching Locomotive (Duty Cycle @ 75% Idle) AESS only Whereas AESS can only operate at ambient temperatures above 32°F (0°C) the  STop-Idle Technology System can yield idle reduction also at sub zero temperatures. Using  STop-Idle Technology System including  Brake-Sense can reduce idling time up to 15 hrs/day for a road switching locomotive. There is no longer a need for AESS to start up for ambient temperature and main reservoir air pressure. AESS only  STop-Idle & STop-Idl with Integrated TEG Modules GP38-270 Battery voltage,...

In order to increase the safety of a parked locomotive, it is highly recommended to monitor the handbrake applied status especially on a majority of locomotives without electronic handbrake sensing. A.S.T. therefore has designed a ruggedized Handbrake-Sensing-Unit (  BrakeSense) that monitors the handbrake applied status. It is optimally located directly to the brake cylinder lever to measure the correct handbrake applied force in order to process a handbrake “applied signal” when a locomotive specific programmed force has been reached and to prompt information about deviations. AESS...

Stop Idling ... Stop Global Warming Reduce Maintenance ... Reduce Noise Fuel Operated Heating Systems for Diesel Engines Call A.S.T. in North America Phone +1-403-470-8826 A.S.T. Angewandte System Technik GmbH Energie & Umwelttechnik Hagertshausen 7 85283 Wolnzach Germany Phone +49 (0) 84 42 67 200 Fax +49 (0) 84 42 67 111 rei.ueno@ast.de www.ast.de Idling of locomotives is no longer an option. Let us show how your road can achieve your goal of reducing GHG, noise and maintenance all year round with our self-powered Idling Stop Technology.