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| ECU Solution for High Pressure Common Rail Diesel Engine |
Related background
The high-pressure common rail diesel injection system can achieve flexible control of fuel injection pressure, injection pulse width, fuel injection timing, etc. It is the preferred fuel system for electronically controlled diesel engines to meet the National IV and above emission standards. At the same time, high-pressure common rail diesel engines also It has significant fuel economy and strong power.
The electronic control unit ECU, high-pressure fuel rail, high-pressure pump, and fuel injector are the four core components of the common rail system. The ECU collects sensor information, and after arithmetic processing, controls the action of the actuator to achieve engine operation control, fault diagnosis, etc. The function is called the brain of the engine.
Solution
ECU mainly includes controller hardware and controller software. The controller software includes basic software and application software. Due to the high complexity of the high-pressure common rail system, it takes a lot of time, energy, and expensive costs to develop either controller hardware, basic software or application software. Without suitable development tools, the R&D and industrialization of ECUs has almost become a difficult task.
RapidECU-based high-pressure common rail diesel engine ECU rapid development solutions, including hardware solutions, basic software solutions, application software solutions and measurement calibration solutions, enable users to complete the development of high-pressure common rail diesel engine ECU prototype prototypes within a few weeks. Realize basic working conditions such as engine start, idle speed, acceleration and deceleration, complete batch product sample development within a few months, realize small and medium batch installation, and lay a good foundation for the large-scale industrialization of high-pressure common rail diesel engine ECU.
The technical parameters of the controller hardware are as follows:
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Microcontroller |
MPC5634M, clocked at 80MHz, hardware floating point unit |
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SRAM 94KB，Flash 1.5MB |
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2 channels CAN, CAN2.0B, ISO11898 |
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Power supply |
Power supply voltage: 9V~32V |
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3 way 5V sensor power supply |
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Input |
21 analog inputs, including 15 voltage inputs and 6 resistance inputs |
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10 switch inputs |
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8 channels of frequency input, 4 channels of magnetoelectricity, 4 channels of Hall |
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2 crankshaft signal input, 2 camshaft signal input |
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Output |
6-channel fuel injection drive, configurable fuel injection waveform parameters, maximum opening voltage 140V, maximum current 50A |
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6-channel PWM power drive |
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Up to 15 relay drives |
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Environment |
Protection grade: IP65, working temperature: -40℃~+85℃ |
Summary
Using RapidECU as the hardware platform, using the ECUCoder automatic code generation tool, and using the EngineMaster engine control algorithm model, the prototype development of the high-pressure common rail diesel engine ECU can be completed within a few weeks to achieve basic operating conditions such as engine starting, idling, acceleration and deceleration. Due to the use of product-level controller hardware, users have open content and clear structured software source codes and models, and can complete batch product sample development within a few months, realize small and medium batches of vehicles, and industrialize high-pressure common rail diesel engine ECUs in large quantities Lay a good foundation.
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