Ignition injection control device for gas engine
A gas engine and control device technology, applied in the direction of engine control, combustion engine, internal combustion piston engine, etc., can solve problems such as inappropriate
Inactive Publication Date: 2011-07-13
温州市气动元件厂
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Problems solved by technology
At present, there are many intelligent development software platforms specially used to develop EFI for automobile engines abroad, and many domestic ones have been introduced. It is obviously inappropriate to directly use the gas engine ignition injection control software developed on this platform
Method used
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Embodiment Construction
[0015] like figure 1 As shown, this embodiment includes a circuit board and a CPU modeled on the circuit board as MC9DS128, and the circuit board is provided with a main power supply circuit, an auxiliary power supply and a control circuit, a reset circuit, and a system auxiliary circuit that are electrically connected to the CPU respectively. , Six-way current feedback monitoring circuit, six-way high-voltage ignition coil drive circuit, six-way gas nozzle drive circuit, gas preheating drive circuit, crankshaft signal shaping circuit, camshaft signal shaping circuit, transmission gear detection circuit, ignition switch monitoring circuit, anti-theft lock Monitoring circuit, calibration communication interface circuit, controller communication interface circuit, electronic throttle communication and interface circuit and A / D signal sampling circuit, electronic throttle communication and interface circuit is also electrically connected with A / D signal sampling circuit, A / D The ...
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The invention provides an ignition injection control device for a gas engine, which can optimize the air-fuel ratio. The device comprises a circuit board, and a central processing unit (CPU) arranged on the circuit board; and the circuit board is provided with a main power supply circuit, a six-path high-tension ignition coil driving circuit, a bent axle signal shaping circuit of an engine, a camshaft signal shaping circuit of the engine, a transmission gear detection circuit, an electronic throttle valve communication and interface circuit, a calibration communication interface circuit, and an analog to digital (A / D) signal sampling circuit which are electrically connected with the CPU respectively, and a front universal exhaust gas oxygen sensor interface circuit which is electrically connected with the A / D signal sampling circuit, and also comprises a gas branch pipe pressure sensor, a water temperature sensor, a gas pressure sensor, a high-pressure cylinder pressure sensor, a liquefier liquid level sensor and a front oxygen sensor which are electrically connected with the A / D signal sampling circuit respectively. Due to the adoption of the technical scheme, the air-fuel ratio of the gas engine can be optimized, the working efficiency of the engine is improved and the emission load of waste gas is reduced.
Description
technical field [0001] The invention relates to an ignition injection control device for a gas engine. Background technique [0002] The development of natural gas vehicles has a history of more than 70 years since the 1930s. Especially after the development in recent years, the technology has become very mature. Advanced electronic technology and mechanical manufacturing technology have ensured the safety and control performance of natural gas vehicles. . At present, the third-generation technology has been widely used in foreign gas engines. The first-generation products are mechanical, the second-generation is a simple closed-loop control, and the third-generation uses electronically controlled injection gas technology. The electronically controlled injection gas system adopts high-pressure injection, and controls the ignition, air-fuel ratio, etc. through the central processing unit through the throttle sensor, gas flow sensor, speed sensor, water temperature sensor, in...
Claims
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Login to View More IPC IPC(8): F02D43/00F02D19/02
CPCY02T10/32Y02T10/30
Inventor 赵旭李捷李未耘
Owner 温州市气动元件厂