Double-throttle-valve control system applied to automobile engine
An automotive engine and control system technology, applied in engine control, electrical control, engine components, etc., can solve the problems of poor air-fuel ratio control performance, high exhaust temperature, low engine adaptability, etc., to achieve precise control, reduce exhaust temperature, Beneficial effect of lean burn control
Pending Publication Date: 2019-06-07
ZHONGSHAN LANSHUI ENERGY TECH DEV
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Problems solved by technology
[0002] At present, most of the commonly used automobile generator sets use a proportional mixer to control the gas intake volume. This control method has the disadvantages of poor air-fuel ratio control performance and high exhaust temperature. Since the gas intake volume under different loads is fixed, Therefore, the air-fuel ratio closed-loop control cannot be realized by controlling the gas intake volume, resulting in low adaptability of the engine to different gas source occasions
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[0014] refer to figure 1 A dual-throttle control system applied to an automobile engine includes a microcomputer controller, an engine 1, a mixing pipeline 2, a gas pipeline 3 and a gas-supporting pipeline 4, and the exhaust end of the mixing pipeline 2 is connected to the inlet of the engine 1. Gas end, the intake end of the mixing pipeline 2 is respectively connected to the gas-supporting pipeline 4 and the gas pipeline 3 through the mixer 5, the exhaust end of the engine 1 is provided with an exhaust pipe 6, and the gas pipeline 3 is provided with There is a gas throttle 7, and the mixing pipeline 2 is provided with a speed-regulating throttle 8, and the microcomputer controller is electrically connected with the gas throttle 7 and the speed-regulating throttle 8 respectively; the microcomputer controller is an automobile ECU, the mixer 5 uses the Venturi principle to mix the gas and air into the supercharger, the gas throttle 7 controls the gas flow of the engine in real t...
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The invention discloses a double-throttle-valve control system applied to an automobile engine. The system comprises a microcomputer controller, the engine, a mixing pipeline, a gas pipeline and a combustion-supporting gas pipeline. The exhaust end of the mixing pipeline is connected with the gas inflow end of the engine, the gas inflow end of the mixing pipeline is connected with the combustion-supporting gas pipeline and the gas pipeline through a mixer, the gas pipeline is provided with a gas throttle valve, the mixing pipeline is provided with a speed adjusting throttle valve, and the microcomputer controller is electrically connected with the gas throttle valve and the speed adjusting throttle valve. Compared with traditional single-throttle-valve control, the double-throttle-valve control system adjusts and controls the gas amount and the mixed gas amount, control of the control system over the air-fuel ratio is more precise, lean combustion control is facilitated, closed-loop control can be achieved for the gas inflow amounts in different load states, and the system is suitable for the occasions where different gas sources and gas components change while the exhaust temperature is reduced.
Description
technical field [0001] The invention relates to an automobile engine control device, in particular to a dual-throttle valve control system applied to an automobile engine. Background technique [0002] At present, most of the commonly used automobile generator sets use a proportional mixer to control the gas intake volume. This control method has the disadvantages of poor air-fuel ratio control performance and high exhaust temperature. Since the gas intake volume under different loads is fixed, Therefore, the air-fuel ratio closed-loop control cannot be realized by controlling the gas intake amount, resulting in low adaptability of the engine to different gas source occasions. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a dual-throttle valve control system applicable to automobile engines that reduces exhaust temperature and is adaptable to different air source occasions. [0004] The technical ...
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IPC IPC(8): F02D19/02F02D41/00F02D41/14F02M21/02
CPCY02T10/30
Inventor 杨宇楠郭彦强付科幸常城刘康力蒋绍友陈莹宝
Owner ZHONGSHAN LANSHUI ENERGY TECH DEV