Ethanol engine cold-starting device and method

Abstract

The invention discloses an ethanol cold starting device and a cold starting method. The device comprises an engine cylinder cover, a heater, a cold starting signal lamp, a solenoid valve, a water sensor and a heater temperature sensor, wherein, the heater is installed at the position near to the spark plug in the cylinder cover combustion chamber; the heater, the solenoid valve, the cold starting signal lamp and the battery as well as the key switch are connected in a circuit in series, the engine electric controlling unit ECU judges whether to use the device through the temperature fed back by the water temperature sensor. When the temperature fed back by the water temperature sensor is below-15degrees below zero centigrade, the ECU can switch on the solenoid valve. When the key switch is closed, the circuit is switched on, and the heater can heat the self temperature to more than 700 centigrade within 10 seconds through the electricity of the battery and heat the air in the cylinder, to reach the purpose of smooth ignition under low temperature. Through the above device and method, the problem of the cold starting of high proportion ethanol gasoline is well solved, and thereby to promote the emission and the economical efficiency to be improved.

Description

Technical field [0001] The invention relates to the technical field of engines, in particular to an ethanol engine cold start device and method. Background technique [0002] At present, ethanol cars on the market mostly use low-proportion ethanol and gasoline mixed combustion, and there is no obvious cold start difficulty. However, as the proportion of ethanol increases, the cold start performance of ethanol gasoline will get worse and worse. At this time, a special cold start system is needed to realize the cold start of ethanol cars. Summary of the invention [0003] The purpose of the present invention is to provide an ethanol engine cold start device and method. The air in the cylinder is heated by the heater to achieve the purpose of smooth ignition at low temperature. [0004] The technical scheme of the present invention is as follows: [0005] An ethanol engine cold start device, including an engine cylinder head, a heater, a cold start signal lamp, a solenoid valve, a ...

AI Technical Summary

Problems solved by technology

[0002] At present, ethanol vehicles on the market mostly use low-proportion ethanol and gasoline for mixed combustion, and there is no obvious problem of cold start difficulty

However, as the proportion of ethanol increases, the cold start performance of ethanol gasoline will become worse and worse. At this time, a special cold start system is needed to realize the cold start of ethanol vehicles.

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