Signal generator for engine control development
A technology of engine controller and signal generator, which is applied in the field of signal generation, can solve the problems of limited and environmental factors, high investment cost, low reliability, etc., and achieve the effect of easy installation and deployment, high adaptability, and compact structure
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Embodiment 1
[0033] Signal generators for engine controller development, such as figure 1 As shown, including the main control chip (MCU), key processing module;
[0034] The main control chip communicates with the button processing module;
[0035] The main control chip, according to the key operation command of the key processing module, correspondingly outputs the signals required in the development process of the engine controller.
[0036] Preferably, the signals required in the engine controller development process include engine crankshaft signals, camshaft signals, switch signals, other related analog signals, and other related frequency signals.
[0037] Preferably, the switch signal has 22 paths in total;
[0038] The other relevant analog signals, a total of 16 channels (0 to 5V);
[0039] There are 16 channels of other relevant frequency signals.
[0040] The other related frequency signals have a period ranging from 10us to 1.5s, and a duty cycle ranging from 0 to 100%;
...
Embodiment 2
[0047] Based on the signal generator for the development of the engine controller of Embodiment 1, the signal generator for the development of the engine controller also includes a display driver chip, a digital-to-analog conversion chip (DAC), and a memory;
[0048] The main control chip communicates with the display driver chip in parallel, and controls the display driver chip to drive the display screen to display the values or states of the currently output signals required in the development process of each engine controller.
[0049] The main control chip communicates with the digital-to-analog conversion chip and the memory through SPI (SerialPeripheralInterface, serial peripheral interface);
[0050] The main control chip outputs the signals required in the development process of the engine controller, and respectively drives the digital-to-analog conversion chip to output analog signals;
[0051] The main control chip analyzes the key command sent by the key process...
Embodiment 3
[0066] The engine controller development signal generator based on embodiment one or two also includes a resistor voltage divider circuit and an AD sampling module;
[0067] The resistor divider circuit includes a variable resistor knob;
[0068] The resistor divider circuit outputs a sampling voltage that changes as the resistance of the variable resistor knob changes;
[0069] The AD sampling module is used to convert the sampling voltage output by the voltage sampling circuit into a voltage sampling digital signal and output it to the main control chip (MCU);
[0070] The main control chip, according to the value of the voltage sampling digital signal or the key operation command of the key processing module, correspondingly outputs the signal required in the development process of the engine controller.
[0071] Preferably, the signal generator for engine controller development is powered on again after power-off, automatically samples the value of the digital signal acco...
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